unix: Better base dir calculation for Solaris.

This idea came from https://github.com/libsdl-org/SDL/pull/6681 (thanks!)

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: [icculus]
+patreon: icculus

.github/workflows/main.yml

@@ -0,0 +1,30 @@
+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  Build:
+    name: ${{ matrix.platform.name }}
+    runs-on: ${{ matrix.platform.os }}
+    strategy:
+      matrix:
+        platform:  # !!! FIXME: figure out an efficient way to get SDL2 on the Windows/Mac bots.
+        - { name: Linux,   os: ubuntu-20.04, flags: -GNinja }
+        - { name: MinGW,   os: windows-latest, flags: -GNinja -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc -DCMAKE_SYSTEM_NAME=Windows }
+        - { name: Windows, os: windows-latest }
+        - { name: MacOS,   os: macos-latest }
+    steps:
+    - name: Setup Linux dependencies
+      if: runner.os == 'Linux'
+      run: |
+        sudo apt-get update
+        sudo apt-get install ninja-build
+    - name: Setup MinGW dependencies
+      if: contains(matrix.platform.name, 'MinGW')
+      run:  choco install ninja
+    - name: Get PhysicsFS sources
+      uses: actions/checkout@v2
+    - name: Configure CMake
+      run: cmake -B build ${{ matrix.platform.flags }}
+    - name: Build
+      run: cmake --build build/

.github/workflows/os2.yml

@@ -0,0 +1,20 @@
+name: Build (OS/2)
+
+on: [push, pull_request]
+
+jobs:
+  os2:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: open-watcom/setup-watcom@v0
+      - name: Build physfs.dll
+        run: |
+          cd src
+          wmake -f Makefile.os2
+          cd ..
+      - name: distclean
+        run: |
+          cd src
+          wmake -f Makefile.os2 distclean
+          cd ..

.gitignore

@@ -1,2 +1,2 @@
-syntax:glob
 cmake-build
+

CMakeLists.txt

@@ -9,27 +9,29 @@
 #  compile, using preprocessor checks for platform-specific bits instead of
 #  testing in here.
 
-cmake_minimum_required(VERSION 2.8.4)
+set(PHYSFS_VERSION 3.3.0)
 
-project(PhysicsFS)
-set(PHYSFS_VERSION 3.0.2)
+cmake_minimum_required(VERSION 3.0)
+
+project(PhysicsFS VERSION ${PHYSFS_VERSION} LANGUAGES C )
+
+include(GNUInstallDirs)
 
 # Increment this if/when we break backwards compatibility.
 set(PHYSFS_SOVERSION 1)
 
-# I hate that they define "WIN32" ... we're about to move to Win64...I hope!
-if(WIN32 AND NOT WINDOWS)
-    set(WINDOWS TRUE)
-endif()
+set(PHYSFS_M_SRCS)
+set(PHYSFS_CPP_SRCS)
 
-include_directories(./src)
+# I hate that they define "WIN32" ... we're about to move to Win64...I hope!
 
 if(APPLE)
     set(OTHER_LDFLAGS ${OTHER_LDFLAGS} "-framework IOKit -framework Foundation")
-    set(PHYSFS_M_SRCS src/physfs_platform_apple.m)
+    list(APPEND PHYSFS_M_SRCS src/physfs_platform_apple.m)
 endif()
 
-if(CMAKE_COMPILER_IS_GNUCC)
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
+    add_compile_options(-Wall)
     # Don't use -rpath.
     set(CMAKE_SKIP_RPATH ON CACHE BOOL "Skip RPATH" FORCE)
 endif()
@@ -42,10 +44,10 @@ endif()
 if(HAIKU)
     # We add this explicitly, since we don't want CMake to think this
     #  is a C++ project unless we're on Haiku.
-    set(PHYSFS_CPP_SRCS src/physfs_platform_haiku.cpp)
+    list(APPEND PHYSFS_CPP_SRCS src/physfs_platform_haiku.cpp)
     find_library(BE_LIBRARY be)
     find_library(ROOT_LIBRARY root)
-    set(OPTIONAL_LIBRARY_LIBS ${OPTIONAL_LIBRARY_LIBS} ${BE_LIBRARY} ${ROOT_LIBRARY})
+    list(APPEND OPTIONAL_LIBRARY_LIBS ${BE_LIBRARY} ${ROOT_LIBRARY})
 endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone" OR CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
@@ -53,16 +55,20 @@ if(CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone" OR CMAKE_SYSTEM_NAME STREQUAL "Wind
 endif()
 
 if(WINRT)
-    set(PHYSFS_CPP_SRCS src/physfs_platform_winrt.cpp)
+    list(APPEND PHYSFS_CPP_SRCS src/physfs_platform_winrt.cpp)
 endif()
 
-if(UNIX AND NOT WINDOWS AND NOT APPLE)  # (MingW and such might be UNIX _and_ WINDOWS!)
+if(UNIX AND NOT WIN32 AND NOT APPLE)  # (MingW and such might be UNIX _and_ WINDOWS!)
     find_library(PTHREAD_LIBRARY pthread)
     if(PTHREAD_LIBRARY)
         set(OPTIONAL_LIBRARY_LIBS ${OPTIONAL_LIBRARY_LIBS} ${PTHREAD_LIBRARY})
     endif()
 endif()
 
+if(PHYSFS_CPP_SRCS)
+    enable_language(CXX)
+endif()
+
 # Almost everything is "compiled" here, but things that don't apply to the
 #  build are #ifdef'd out. This is to make it easy to embed PhysicsFS into
 #  another project or bring up a new build system: just compile all the source
@@ -76,6 +82,7 @@ set(PHYSFS_SRCS
     src/physfs_platform_windows.c
     src/physfs_platform_os2.c
     src/physfs_platform_qnx.c
+    src/physfs_platform_android.c
     src/physfs_archiver_dir.c
     src/physfs_archiver_unpacked.c
     src/physfs_archiver_grp.c
@@ -151,6 +158,8 @@ endif()
 option(PHYSFS_BUILD_STATIC "Build static library" TRUE)
 if(PHYSFS_BUILD_STATIC)
     add_library(physfs-static STATIC ${PHYSFS_SRCS})
+    add_library(PhysFS::PhysFS-static ALIAS physfs-static)
+    set_target_properties(physfs-static PROPERTIES EXPORT_NAME PhysFS-static)
     # Don't rename this on Windows, since DLLs will also produce an import
     #  library named "physfs.lib" which would conflict; Unix tend to like the
     #  same library name with a different extension for static libs, but
@@ -163,23 +172,34 @@ if(PHYSFS_BUILD_STATIC)
 		set_target_properties(physfs-static PROPERTIES VS_WINRT_COMPONENT True)
         set_target_properties(physfs-static PROPERTIES STATIC_LIBRARY_FLAGS "/ignore:4264")
     endif()
-
+    if(WIN32 OR WINRT OR OS2)
+        # no dll exports from the static library
+        target_compile_definitions(physfs-static PRIVATE "PHYSFS_STATIC")
+    endif()
+    target_include_directories(physfs-static PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>")
+    target_link_libraries(physfs-static PRIVATE ${OPTIONAL_LIBRARY_LIBS} ${OTHER_LDFLAGS})
     set(PHYSFS_LIB_TARGET physfs-static)
-    set(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";physfs-static")
+    list(APPEND PHYSFS_INSTALL_TARGETS "physfs-static")
 endif()
 
 option(PHYSFS_BUILD_SHARED "Build shared library" TRUE)
 if(PHYSFS_BUILD_SHARED)
     add_library(physfs SHARED ${PHYSFS_SRCS})
+    add_library(PhysFS::PhysFS ALIAS physfs)
     set_target_properties(physfs PROPERTIES MACOSX_RPATH 1)
     set_target_properties(physfs PROPERTIES VERSION ${PHYSFS_VERSION})
     set_target_properties(physfs PROPERTIES SOVERSION ${PHYSFS_SOVERSION})
+    set_target_properties(physfs PROPERTIES EXPORT_NAME PhysFS)
     if(WINRT)
 		set_target_properties(physfs PROPERTIES VS_WINRT_COMPONENT True)
     endif()
-    target_link_libraries(physfs ${OPTIONAL_LIBRARY_LIBS} ${OTHER_LDFLAGS})
+    if(OS2) # OS/2 does not support a DLL name longer than 8 characters.
+        set_target_properties(physfs PROPERTIES OUTPUT_NAME "physfs")
+    endif()
+    target_include_directories(physfs PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>")
+    target_link_libraries(physfs PRIVATE ${OPTIONAL_LIBRARY_LIBS} ${OTHER_LDFLAGS})
     set(PHYSFS_LIB_TARGET physfs)
-    set(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";physfs")
+    list(APPEND PHYSFS_INSTALL_TARGETS "physfs")
 endif()
 
 if(NOT PHYSFS_BUILD_SHARED AND NOT PHYSFS_BUILD_STATIC)
@@ -187,7 +207,7 @@ if(NOT PHYSFS_BUILD_SHARED AND NOT PHYSFS_BUILD_STATIC)
 endif()
 
 # CMake FAQ says I need this...
-if(PHYSFS_BUILD_SHARED AND PHYSFS_BUILD_STATIC AND NOT WINDOWS)
+if(PHYSFS_BUILD_SHARED AND PHYSFS_BUILD_STATIC AND NOT WIN32)
     set_target_properties(physfs PROPERTIES CLEAN_DIRECT_OUTPUT 1)
     set_target_properties(physfs-static PROPERTIES CLEAN_DIRECT_OUTPUT 1)
 endif()
@@ -199,26 +219,54 @@ if(PHYSFS_BUILD_TEST)
     find_path(HISTORY_H readline/history.h)
     if(READLINE_H AND HISTORY_H)
         find_library(CURSES_LIBRARY NAMES curses ncurses)
+        if(CURSES_LIBRARY)
             set(CMAKE_REQUIRED_LIBRARIES ${CURSES_LIBRARY})
             find_library(READLINE_LIBRARY readline)
             if(READLINE_LIBRARY)
                 set(HAVE_SYSTEM_READLINE TRUE)
-            set(TEST_PHYSFS_LIBS ${TEST_PHYSFS_LIBS} ${READLINE_LIBRARY} ${CURSES_LIBRARY})
+                list(APPEND TEST_PHYSFS_LIBS ${READLINE_LIBRARY} ${CURSES_LIBRARY})
                 include_directories(SYSTEM ${READLINE_H} ${HISTORY_H})
                 add_definitions(-DPHYSFS_HAVE_READLINE=1)
             endif()
         endif()
+    endif()
     add_executable(test_physfs test/test_physfs.c)
-    target_link_libraries(test_physfs ${PHYSFS_LIB_TARGET} ${TEST_PHYSFS_LIBS} ${OTHER_LDFLAGS})
-    set(PHYSFS_INSTALL_TARGETS ${PHYSFS_INSTALL_TARGETS} ";test_physfs")
+    target_link_libraries(test_physfs PRIVATE ${PHYSFS_LIB_TARGET} ${TEST_PHYSFS_LIBS} ${OTHER_LDFLAGS})
+    list(APPEND PHYSFS_INSTALL_TARGETS test_physfs)
 endif()
 
-install(TARGETS ${PHYSFS_INSTALL_TARGETS}
-        RUNTIME DESTINATION bin
-        LIBRARY DESTINATION lib${LIB_SUFFIX}
-        ARCHIVE DESTINATION lib${LIB_SUFFIX})
-install(FILES src/physfs.h DESTINATION include)
+option(PHYSFS_DISABLE_INSTALL "Disable installing PhysFS" OFF)
+if(NOT PHYSFS_DISABLE_INSTALL)
 
+    install(TARGETS ${PHYSFS_INSTALL_TARGETS} EXPORT PhysFSExport
+            RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+            INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+    install(FILES src/physfs.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
+    install(EXPORT PhysFSExport
+            DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/PhysFS"
+            FILE PhysFSConfig.cmake
+            NAMESPACE PhysFS::
+    )
+
+    if(NOT MSVC)
+        configure_file(
+            "extras/physfs.pc.in"
+            "extras/physfs.pc"
+            @ONLY
+        )
+
+        install(
+            FILES "${CMAKE_CURRENT_BINARY_DIR}/extras/physfs.pc"
+            DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
+        )
+    endif()
+endif()
+
+option(PHYSFS_BUILD_DOCS "Build doxygen based documentation" TRUE)
+if(PHYSFS_BUILD_DOCS)
     find_package(Doxygen)
     if(DOXYGEN_FOUND)
         set(PHYSFS_OUTPUT_DOXYFILE "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile")
@@ -233,23 +281,26 @@ if(DOXYGEN_FOUND)
         file(APPEND "${PHYSFS_OUTPUT_DOXYFILE}" "\n# End auto-generated section.\n\n")
 
         set(PHYSFS_TARGETNAME_DOCS "docs" CACHE STRING "Name of 'docs' build target")
+
         add_custom_target(
             ${PHYSFS_TARGETNAME_DOCS}
             ${DOXYGEN_EXECUTABLE} "${PHYSFS_OUTPUT_DOXYFILE}"
             WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
             COMMENT "Building documentation in 'docs' directory..."
         )
+
     else()
         message(STATUS "Doxygen not found. You won't be able to build documentation.")
     endif()
+endif()
 
 if(UNIX)
-    set(PHYSFS_TARBALL "${CMAKE_CURRENT_SOURCE_DIR}/../physfs-${PHYSFS_VERSION}.tar.bz2")
+    set(PHYSFS_TARBALL "${CMAKE_CURRENT_SOURCE_DIR}/../physfs-${PHYSFS_VERSION}.tar.gz")
 
     set(PHYSFS_TARGETNAME_DIST "dist" CACHE STRING "Name of 'dist' build target")
     add_custom_target(
         ${PHYSFS_TARGETNAME_DIST}
-        hg archive -t tbz2 "${PHYSFS_TARBALL}"
+        git archive --prefix="physfs-${PHYSFS_VERSION}/" --output="${PHYSFS_TARBALL}" HEAD
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
         COMMENT "Building source tarball '${PHYSFS_TARBALL}'..."
     )
@@ -263,17 +314,6 @@ if(UNIX)
     )
 endif()
 
-if(NOT MSVC)
-    configure_file(
-        "extras/physfs.pc.in"
-        "extras/physfs.pc"
-        @ONLY
-    )
-    install(
-        FILES "${CMAKE_CURRENT_BINARY_DIR}/extras/physfs.pc"
-        DESTINATION "lib${LIB_SUFFIX}/pkgconfig"
-    )
-endif()
 
 macro(message_bool_option _NAME _VALUE)
     if(${_VALUE})
@@ -297,9 +337,9 @@ message_bool_option("ISO9660 support" PHYSFS_ARCHIVE_ISO9660)
 message_bool_option("Build static library" PHYSFS_BUILD_STATIC)
 message_bool_option("Build shared library" PHYSFS_BUILD_SHARED)
 message_bool_option("Build stdio test program" PHYSFS_BUILD_TEST)
+message_bool_option("Build Doxygen documentation" PHYSFS_BUILD_DOCS)
 if(PHYSFS_BUILD_TEST)
     message_bool_option("  Use readline in test program" HAVE_SYSTEM_READLINE)
 endif()
 
 # end of CMakeLists.txt ...
-

LICENSE.txt

@@ -1,23 +1,17 @@
+Copyright (c) 2001-2022 Ryan C. Gordon <icculus@icculus.org> and others.
   
-   Copyright (c) 2001-2019 Ryan C. Gordon and others.
-
-   This software is provided 'as-is', without any express or implied warranty.
-   In no event will the authors be held liable for any damages arising from
-   the use of this software.
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
 
 Permission is granted to anyone to use this software for any purpose,
 including commercial applications, and to alter it and redistribute it
 freely, subject to the following restrictions:
   
 1. The origin of this software must not be misrepresented; you must not
-   claim that you wrote the original software. If you use this software in a
-   product, an acknowledgment in the product documentation would be
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
    appreciated but is not required. 
-
 2. Altered source versions must be plainly marked as such, and must not be
    misrepresented as being the original software.
-
 3. This notice may not be removed or altered from any source distribution.
-
-       Ryan C. Gordon <icculus@icculus.org>
-

docs/CHANGELOG.txt

@@ -6,6 +6,6 @@ The changelog is no longer maintained by hand. It made sense to have a single
 If you want a list of changes, updated in real time, just point your web
  browser here:
 
-    https://hg.icculus.org/icculus/physfs/
+    https://github.com/icculus/physfs/commits/
 
 

docs/INSTALL.txt

@@ -37,7 +37,7 @@ If this all worked for your specific project, you can stop reading now.
 
 
 
-UNIX:
+Unix:
 
 You will need CMake (https://www.cmake.org/) 2.4 or later installed.
 

extras/buildbot-checker.sh

@@ -1,53 +1,14 @@
 #!/bin/bash
 
-# This is a script used by some Buildbot buildslaves to push the project
+# This is a script used by some Buildbot workers to push the project
 #  through Clang's static analyzer and prepare the output to be uploaded
 #  back to the buildmaster. You might find it useful too.
 
 # Install Clang (you already have it on Mac OS X, apt-get install clang
-#  on Ubuntu, etc),
-# or download checker at http://clang-analyzer.llvm.org/ and unpack it in
-#  /usr/local ... update CHECKERDIR as appropriate.
+#  on Ubuntu, etc), Make sure "scan-build" is in your $PATH.
 
 FINALDIR="$1"
 
-CHECKERDIR="/usr/local/checker-279"
-if [ ! -d "$CHECKERDIR" ]; then
-    echo "$CHECKERDIR not found. Trying /usr/share/clang ..." 1>&2
-    CHECKERDIR="/usr/share/clang/scan-build"
-fi
-
-if [ ! -d "$CHECKERDIR" ]; then
-    echo "$CHECKERDIR not found. Giving up." 1>&2
-    exit 1
-fi
-
-if [ -z "$MAKE" ]; then
-    OSTYPE=`uname -s`
-    if [ "$OSTYPE" == "Linux" ]; then
-        NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`
-        let NCPU=$NCPU+1
-    elif [ "$OSTYPE" = "Darwin" ]; then
-        NCPU=`sysctl -n hw.ncpu`
-    elif [ "$OSTYPE" = "SunOS" ]; then
-        NCPU=`/usr/sbin/psrinfo |wc -l |sed -e 's/^ *//g;s/ *$//g'`
-    else
-        NCPU=1
-    fi
-
-    if [ -z "$NCPU" ]; then
-        NCPU=1
-    elif [ "$NCPU" = "0" ]; then
-        NCPU=1
-    fi
-
-    MAKE="make -j$NCPU"
-fi
-
-echo "\$MAKE is '$MAKE'"
-MAKECMD="$MAKE"
-unset MAKE  # prevent warnings about jobserver mode.
-
 set -x
 set -e
 
@@ -66,13 +27,10 @@ cd checker-buildbot
 # The -Wno-liblto is new since our checker-279 upgrade, I think; checker otherwise warns "libLTO.dylib relative to clang installed dir not found"
 
 # You might want to do this for CMake-backed builds instead...
-PATH="$CHECKERDIR/bin:$PATH" scan-build -o analysis cmake -Wno-dev -DPHYSFS_BUILD_SHARED=False -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_EXE_LINKER_FLAGS="-Wno-liblto" ..
-
-# ...or run configure without the scan-build wrapper...
-#CC="$CHECKERDIR/libexec/ccc-analyzer" CFLAGS="-O0 -Wno-deprecated-declarations" LDFLAGS="-Wno-liblto" ../configure --enable-assertions=enabled
+scan-build -o analysis cmake -G Ninja -Wno-dev -DPHYSFS_BUILD_SHARED=False -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-Wno-deprecated-declarations" -DCMAKE_EXE_LINKER_FLAGS="-Wno-liblto" ..
 
 rm -rf analysis
-PATH="$CHECKERDIR/bin:$PATH" scan-build -o analysis $MAKECMD
+scan-build -o analysis cmake --build . --config Debug
 
 if [ `ls -A analysis |wc -l` == 0 ] ; then
     mkdir analysis/zarro

extras/buildbot-emscripten.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 if [ -z "$SDKDIR" ]; then
-    SDKDIR="/emsdk_portable"
+    SDKDIR="/emsdk"
 fi
 
 ENVSCRIPT="$SDKDIR/emsdk_env.sh"
@@ -20,32 +20,6 @@ cd `dirname "$0"`
 cd ..
 PHYSFSBASE=`pwd`
 
-if [ -z "$MAKE" ]; then
-    OSTYPE=`uname -s`
-    if [ "$OSTYPE" == "Linux" ]; then
-        NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`
-        let NCPU=$NCPU+1
-    elif [ "$OSTYPE" = "Darwin" ]; then
-        NCPU=`sysctl -n hw.ncpu`
-    elif [ "$OSTYPE" = "SunOS" ]; then
-        NCPU=`/usr/sbin/psrinfo |wc -l |sed -e 's/^ *//g;s/ *$//g'`
-    else
-        NCPU=1
-    fi
-
-    if [ -z "$NCPU" ]; then
-        NCPU=1
-    elif [ "$NCPU" = "0" ]; then
-        NCPU=1
-    fi
-
-    MAKE="make -j$NCPU"
-fi
-
-echo "\$MAKE is '$MAKE'"
-MAKECMD="$MAKE"
-unset MAKE  # prevent warnings about jobserver mode.
-
 echo "Setting up Emscripten SDK environment..."
 source "$ENVSCRIPT"
 
@@ -56,10 +30,10 @@ mkdir buildbot
 cd buildbot
 
 echo "Configuring..."
-emcmake cmake -G "Unix Makefiles" -DPHYSFS_BUILD_SHARED=False -DCMAKE_BUILD_TYPE=MinSizeRel .. || exit $?
+emcmake cmake -G "Ninja" -DPHYSFS_BUILD_SHARED=False -DCMAKE_BUILD_TYPE=MinSizeRel .. || exit $?
 
 echo "Building..."
-emmake $MAKECMD || exit $?
+emmake cmake --build . --config MinSizeRel || exit $?
 
 set -e
 rm -rf "$TARBALL" physfs-emscripten

extras/buildbot-raspberrypi.sh

@@ -15,24 +15,7 @@ if [ -z $1 ]; then
     TARBALL=physfs-raspberrypi.tar.xz
 fi
 
-OSTYPE=`uname -s`
-if [ "$OSTYPE" != "Linux" ]; then
-    # !!! FIXME
-    echo "This only works on x86 or x64-64 Linux at the moment." 1>&2
-    exit 1
-fi
-
-if [ "x$MAKE" == "x" ]; then
-    NCPU=`cat /proc/cpuinfo |grep vendor_id |wc -l`
-    let NCPU=$NCPU+1
-    MAKE="make -j$NCPU"
-fi
-
-echo "\$MAKE is '$MAKE'"
-MAKECMD="$MAKE"
-unset MAKE  # prevent warnings about jobserver mode.
-
-BUILDBOTDIR="raspberrypi-buildbot"
+BUILDBOTDIR="buildbot"
 PARENTDIR="$PWD"
 
 set -e
@@ -42,8 +25,9 @@ rm -rf $BUILDBOTDIR
 mkdir -p $BUILDBOTDIR
 pushd $BUILDBOTDIR
 
+# the '-G "Ninja"' can be '-G "Unix Makefiles"' if you prefer to use GNU Make.
 SYSROOT="/opt/rpi-sysroot"
-cmake -G "Unix Makefiles" \
+cmake -G "Ninja" \
     -DCMAKE_C_COMPILER="/opt/rpi-tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-gcc" \
     -DCMAKE_BUILD_TYPE=MinSizeRel \
     -DCMAKE_SYSROOT="$SYSROOT" \
@@ -55,7 +39,7 @@ cmake -G "Unix Makefiles" \
     -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY \
     ..
 
-$MAKECMD
+cmake --build . --config MinSizeRel
 
 rm -rf "$TARBALL" physfs-raspberrypi
 mkdir -p physfs-raspberrypi

extras/globbing.c

@@ -208,13 +208,13 @@ int main(int argc, char **argv)
 
     if (!PHYSFS_init(argv[0]))
     {
-        fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 1;
     } /* if */
 
     if (!PHYSFS_addToSearchPath(".", 1))
     {
-        fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */

extras/ignorecase.c

@@ -105,34 +105,34 @@ int main(int argc, char **argv)
 
     if (!PHYSFS_init(argv[0]))
     {
-        fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 1;
     } /* if */
 
     if (!PHYSFS_addToSearchPath(".", 1))
     {
-        fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */
 
     if (!PHYSFS_setWriteDir("."))
     {
-        fprintf(stderr, "PHYSFS_setWriteDir(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_setWriteDir(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */
 
     if (!PHYSFS_mkdir("/a/b/c"))
     {
-        fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */
 
     if (!PHYSFS_mkdir("/a/b/C"))
     {
-        fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_mkdir(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */
@@ -141,7 +141,7 @@ int main(int argc, char **argv)
     PHYSFS_close(f);
     if (f == NULL)
     {
-        fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */
@@ -150,7 +150,7 @@ int main(int argc, char **argv)
     PHYSFS_close(f);
     if (f == NULL)
     {
-        fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_openWrite(): %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         PHYSFS_deinit();
         return 1;
     } /* if */

extras/physfs.pc.in

@@ -1,7 +1,7 @@
 prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_FULL_LIBDIR@
+includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
 
 Name: PhysicsFS
 Description: PhysicsFS is a library to provide abstract access to various archives.

extras/physfsrwops.c

@@ -70,7 +70,7 @@ static int physfsrwops_seek(SDL_RWops *rw, int offset, int whence)
         if (current == -1)
         {
             SDL_SetError("Can't find position in file: %s",
-                          PHYSFS_getLastError());
+                          PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
             return -1;
         } /* if */
 
@@ -91,7 +91,7 @@ static int physfsrwops_seek(SDL_RWops *rw, int offset, int whence)
         const PHYSFS_sint64 len = PHYSFS_fileLength(handle);
         if (len == -1)
         {
-            SDL_SetError("Can't find end of file: %s", PHYSFS_getLastError());
+            SDL_SetError("Can't find end of file: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
             return -1;
         } /* if */
 
@@ -112,7 +112,7 @@ static int physfsrwops_seek(SDL_RWops *rw, int offset, int whence)
     
     if (!PHYSFS_seek(handle, (PHYSFS_uint64) pos))
     {
-        SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
+        SDL_SetError("PhysicsFS error: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return -1;
     } /* if */
 
@@ -138,7 +138,7 @@ static int physfsrwops_read(SDL_RWops *rw, void *ptr, int size, int maxnum)
     {
         if (!PHYSFS_eof(handle)) /* not EOF? Must be an error. */
         {
-            SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
+            SDL_SetError("PhysicsFS error: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
 
             #if TARGET_SDL2
             return 0;
@@ -167,7 +167,7 @@ static int physfsrwops_write(SDL_RWops *rw, const void *ptr, int size, int num)
     const PHYSFS_uint64 writelen = (PHYSFS_uint64) (num * size);
     const PHYSFS_sint64 rc = PHYSFS_writeBytes(handle, ptr, writelen);
     if (rc != ((PHYSFS_sint64) writelen))
-        SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
+        SDL_SetError("PhysicsFS error: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
 
     #if TARGET_SDL2
     return (size_t) rc;
@@ -182,7 +182,7 @@ static int physfsrwops_close(SDL_RWops *rw)
     PHYSFS_File *handle = (PHYSFS_File *) rw->hidden.unknown.data1;
     if (!PHYSFS_close(handle))
     {
-        SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
+        SDL_SetError("PhysicsFS error: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return -1;
     } /* if */
 
@@ -196,7 +196,7 @@ static SDL_RWops *create_rwops(PHYSFS_File *handle)
     SDL_RWops *retval = NULL;
 
     if (handle == NULL)
-        SDL_SetError("PhysicsFS error: %s", PHYSFS_getLastError());
+        SDL_SetError("PhysicsFS error: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
     else
     {
         retval = SDL_AllocRW();

extras/physfsunpack.c

@@ -28,7 +28,7 @@ static void modTimeToStr(PHYSFS_sint64 modtime, char *modstr, size_t strsize)
 static void fail(const char *what, const char *why)
 {
     if (why == NULL)
-        why = PHYSFS_getLastError();
+        why = PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode());
     fprintf(stderr, "%s failed: %s\n", what, why);
     failure = 1;
 } /* fail */
@@ -150,21 +150,21 @@ int main(int argc, char **argv)
 
     if (!PHYSFS_init(argv[0]))
     {
-        fprintf(stderr, "PHYSFS_init() failed: %s\n", PHYSFS_getLastError());
+        fprintf(stderr, "PHYSFS_init() failed: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 2;
     } /* if */
 
     if (!PHYSFS_setWriteDir(argv[2]))
     {
         fprintf(stderr, "PHYSFS_setWriteDir('%s') failed: %s\n",
-                argv[2], PHYSFS_getLastError());
+                argv[2], PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 3;
     } /* if */
 
     if (!PHYSFS_mount(argv[1], NULL, 1))
     {
         fprintf(stderr, "PHYSFS_mount('%s') failed: %s\n",
-                argv[1], PHYSFS_getLastError());
+                argv[1], PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 4;
     } /* if */
 

extras/selfextract.c

@@ -40,14 +40,14 @@ int main(int argc, char **argv)
 
     if (!PHYSFS_init(argv[0]))
     {
-        printf("PHYSFS_init() failed: %s\n", PHYSFS_getLastError());
+        printf("PHYSFS_init() failed: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         return 42;
     } /* if */
 
     rc = PHYSFS_addToSearchPath(argv[0], 0);
     if (!rc)
     {
-        printf("Couldn't find self-extract data: %s\n", PHYSFS_getLastError());
+        printf("Couldn't find self-extract data: %s\n", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
         printf("This might mean you didn't append a zipfile to the binary.\n");
         return 42;
     } /* if */

src/Makefile.os2

@@ -0,0 +1,93 @@
+# Open Watcom makefile to build PhysicsFS for OS/2
+# wmake -f Makefile.os2
+
+LIBNAME = physfs
+VERSION = 3.3.0
+
+LIBFILE = $(LIBNAME).lib
+DLLFILE = $(LIBNAME).dll
+LNKFILE = $(LIBNAME).lnk
+
+TITLENAME = $(LIBNAME) $(VERSION)
+
+SRCS = physfs.c                   &
+       physfs_byteorder.c         &
+       physfs_unicode.c           &
+       physfs_platform_os2.c      &
+       physfs_archiver_dir.c      &
+       physfs_archiver_unpacked.c &
+       physfs_archiver_grp.c      &
+       physfs_archiver_hog.c      &
+       physfs_archiver_7z.c       &
+       physfs_archiver_mvl.c      &
+       physfs_archiver_qpak.c     &
+       physfs_archiver_wad.c      &
+       physfs_archiver_zip.c      &
+       physfs_archiver_slb.c      &
+       physfs_archiver_iso9660.c  &
+       physfs_archiver_vdf.c
+
+
+OBJS = $(SRCS:.c=.obj)
+
+CFLAGS_BASE = -bt=os2 -d0 -q -bm -5s -fp5 -fpi87 -sg -oeatxh -ei -j
+CFLAGS_BASE+= -DNDEBUG
+# warnings:
+CFLAGS_BASE+= -wx
+# newer OpenWatcom versions enable W303 by default
+CFLAGS_BASE+= -wcd=303
+# include paths:
+CFLAGS_BASE+= -I"$(%WATCOM)/h/os2" -I"$(%WATCOM)/h"
+CFLAGS = $(CFLAGS_BASE)
+# to build a dll:
+CFLAGS+= -bd
+
+.extensions:
+.extensions: .lib .dll .obj .c
+
+all: $(DLLFILE) test_physfs.exe
+
+.c: decoders
+.c: examples
+
+$(LIBFILE): $(DLLFILE)
+  @echo * Create library: $@...
+  wlib -b -n -q -c -pa -s -t -zld -ii -io $@ $(DLLFILE)
+
+$(DLLFILE): $(OBJS) $(MODPLIB) $(TIMILIB) $(LNKFILE)
+  @echo * Link: $@
+  wlink @$(LNKFILE)
+
+$(LNKFILE):
+  @%create $@
+  @%append $@ SYSTEM os2v2_dll INITINSTANCE TERMINSTANCE
+  @%append $@ NAME $(LIBNAME)
+  @for %i in ($(OBJS)) do @%append $@ FILE %i
+  @%append $@ OPTION QUIET
+  @%append $@ OPTION DESCRIPTION '@$#icculus org:$(VERSION)$#@PhysicsFS'
+  @%append $@ OPTION MAP=$^&.map
+  @%append $@ OPTION ELIMINATE
+  @%append $@ OPTION MANYAUTODATA
+  @%append $@ OPTION OSNAME='OS/2 and eComStation'
+  @%append $@ OPTION SHOWDEAD
+
+.c.obj:
+  wcc386 $(CFLAGS) -fo=$^@ $<
+
+test_physfs.obj: "../test/test_physfs.c"
+  wcc386 $(CFLAGS_BASE) -fo=$^@ $<
+
+test_physfs.exe: $(LIBFILE) test_physfs.obj
+  @echo * Link: $@
+  wlink SYS os2v2 LIBR {$(LIBFILE)} op q op el F {test_physfs.obj} N test_physfs.exe
+
+clean: .SYMBOLIC
+  @echo * Clean: $(TITLENAME)
+  @if exist *.obj rm *.obj
+  @if exist *.err rm *.err
+  @if exist $(LNKFILE) rm $(LNKFILE)
+distclean: .SYMBOLIC clean
+  @if exist $(DLLFILE) rm $(DLLFILE)
+  @if exist $(LIBFILE) rm $(LIBFILE)
+  @if exist *.map rm *.map
+  @if exist *.exe rm *.exe

src/physfs.c

@@ -12,8 +12,6 @@
 #include "physfs_internal.h"
 
 #if defined(_MSC_VER)
-#include <stdarg.h>
-
 /* this code came from https://stackoverflow.com/a/8712996 */
 int __PHYSFS_msvc_vsnprintf(char *outBuf, size_t size, const char *format, va_list ap)
 {
@@ -46,6 +44,8 @@ typedef struct __PHYSFS_DIRHANDLE__
     void *opaque;  /* Instance data unique to the archiver. */
     char *dirName;  /* Path to archive in platform-dependent notation. */
     char *mountPoint; /* Mountpoint in virtual file tree. */
+    char *root;  /* subdirectory of archiver to use as root of archive (NULL for actual root) */
+    size_t rootlen;  /* subdirectory of archiver to use as root of archive (NULL for actual root) */
     const PHYSFS_Archiver *funcs;  /* Ptr to archiver info for this handle. */
     struct __PHYSFS_DIRHANDLE__ *next;  /* linked list stuff. */
 } DirHandle;
@@ -86,6 +86,7 @@ static int allowSymLinks = 0;
 static PHYSFS_Archiver **archivers = NULL;
 static PHYSFS_ArchiveInfo **archiveInfo = NULL;
 static volatile size_t numArchivers = 0;
+static size_t longest_root = 0;
 
 /* mutexes ... */
 static void *errorLock = NULL;     /* protects error message list.        */
@@ -101,8 +102,8 @@ static inline int __PHYSFS_atomicAdd(int *ptrval, const int val)
 {
     int retval;
     __PHYSFS_platformGrabMutex(stateLock);
+    *ptrval += val;
     retval = *ptrval;
-    *ptrval = retval + val;
     __PHYSFS_platformReleaseMutex(stateLock);
     return retval;
 } /* __PHYSFS_atomicAdd */
@@ -920,12 +921,12 @@ static DirHandle *openDirectory(PHYSFS_Io *io, const char *d, int forWriting)
             retval = tryOpenDir(io, *i, d, forWriting, &claimed);
     } /* else */
 
-    errcode = currentErrorCode();
+    errcode = claimed ? currentErrorCode() : PHYSFS_ERR_UNSUPPORTED;
 
     if ((!retval) && (created_io))
         io->destroy(io);
 
-    BAIL_IF(!retval, claimed ? errcode : PHYSFS_ERR_UNSUPPORTED, NULL);
+    BAIL_IF(!retval, errcode, NULL);
     return retval;
 } /* openDirectory */
 
@@ -980,6 +981,18 @@ static int sanitizePlatformIndependentPath(const char *src, char *dst)
 } /* sanitizePlatformIndependentPath */
 
 
+static inline size_t dirHandleRootLen(const DirHandle *h)
+{
+    return h ? h->rootlen : 0;
+} /* dirHandleRootLen */
+
+static inline int sanitizePlatformIndependentPathWithRoot(const DirHandle *h, const char *src, char *dst)
+{
+    return sanitizePlatformIndependentPath(src, dst + dirHandleRootLen(h));
+} /* sanitizePlatformIndependentPathWithRoot */
+
+
+
 /*
  * Figure out if (fname) is part of (h)'s mountpoint. (fname) must be an
  *  output from sanitizePlatformIndependentPath(), so that it is in a known
@@ -1080,6 +1093,8 @@ static int freeDirHandle(DirHandle *dh, FileHandle *openList)
         BAIL_IF(i->dirHandle == dh, PHYSFS_ERR_FILES_STILL_OPEN, 0);
 
     dh->funcs->closeArchive(dh->opaque);
+
+    if (dh->root) allocator.Free(dh->root);
     allocator.Free(dh->dirName);
     allocator.Free(dh->mountPoint);
     allocator.Free(dh);
@@ -1218,7 +1233,9 @@ int PHYSFS_init(const char *argv0)
     if (!userDir) goto initFailed;
 
     /* Platform layer is required to append a dirsep. */
+    #ifndef __ANDROID__  /* it's an APK file, not a directory, on Android. */
     assert(baseDir[strlen(baseDir) - 1] == __PHYSFS_platformDirSeparator);
+    #endif
     assert(userDir[strlen(userDir) - 1] == __PHYSFS_platformDirSeparator);
 
     if (!initStaticArchivers()) goto initFailed;
@@ -1378,6 +1395,7 @@ static int doDeinit(void)
         archivers = NULL;
     } /* if */
 
+    longest_root = 0;
     allowSymLinks = 0;
     initialized = 0;
 
@@ -1417,15 +1435,60 @@ char *__PHYSFS_strdup(const char *str)
 } /* __PHYSFS_strdup */
 
 
-PHYSFS_uint32 __PHYSFS_hashString(const char *str, size_t len)
+PHYSFS_uint32 __PHYSFS_hashString(const char *str)
 {
     PHYSFS_uint32 hash = 5381;
-    while (len--)
-        hash = ((hash << 5) + hash) ^ *(str++);
+    while (1)
+    {
+        const char ch = *(str++);
+        if (ch == 0)
+            break;
+        hash = ((hash << 5) + hash) ^ ch;
+    } /* while */
     return hash;
 } /* __PHYSFS_hashString */
 
 
+PHYSFS_uint32 __PHYSFS_hashStringCaseFold(const char *str)
+{
+    PHYSFS_uint32 hash = 5381;
+    while (1)
+    {
+        const PHYSFS_uint32 cp = __PHYSFS_utf8codepoint(&str);
+        if (cp == 0)
+            break;
+        else
+        {
+            PHYSFS_uint32 folded[3];
+            const int numbytes = (int) (PHYSFS_caseFold(cp, folded) * sizeof (PHYSFS_uint32));
+            const char *bytes = (const char *) folded;
+            int i;
+            for (i = 0; i < numbytes; i++)
+                hash = ((hash << 5) + hash) ^ *(bytes++);
+        } /* else */
+    } /* while */
+
+    return hash;
+} /* __PHYSFS_hashStringCaseFold */
+
+
+PHYSFS_uint32 __PHYSFS_hashStringCaseFoldUSAscii(const char *str)
+{
+    PHYSFS_uint32 hash = 5381;
+    while (1)
+    {
+        char ch = *(str++);
+        if (ch == 0)
+            break;
+        else if ((ch >= 'A') && (ch <= 'Z'))
+            ch -= ('A' - 'a');
+
+        hash = ((hash << 5) + hash) ^ ch;
+    } /* while */
+    return hash;
+} /* __PHYSFS_hashStringCaseFoldUSAscii */
+
+
 /* MAKE SURE you hold stateLock before calling this! */
 static int doRegisterArchiver(const PHYSFS_Archiver *_archiver)
 {
@@ -1684,6 +1747,54 @@ int PHYSFS_setWriteDir(const char *newDir)
 } /* PHYSFS_setWriteDir */
 
 
+int PHYSFS_setRoot(const char *archive, const char *subdir)
+{
+    DirHandle *i;
+
+    BAIL_IF(!archive, PHYSFS_ERR_INVALID_ARGUMENT, 0);
+
+    __PHYSFS_platformGrabMutex(stateLock);
+
+    for (i = searchPath; i != NULL; i = i->next)
+    {
+        if ((i->dirName != NULL) && (strcmp(archive, i->dirName) == 0))
+        {
+            if (!subdir || (strcmp(subdir, "/") == 0))
+            {
+                if (i->root)
+                    allocator.Free(i->root);
+                i->root = NULL;
+                i->rootlen = 0;
+            } /* if */
+            else
+            {
+                const size_t len = strlen(subdir) + 1;
+                char *ptr = (char *) allocator.Malloc(len);
+                BAIL_IF_MUTEX(!ptr, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
+                if (!sanitizePlatformIndependentPath(subdir, ptr))
+                {
+                    allocator.Free(ptr);
+                    BAIL_MUTEX_ERRPASS(stateLock, 0);
+                } /* if */
+
+                if (i->root)
+                    allocator.Free(i->root);
+                i->root = ptr;
+                i->rootlen = strlen(i->root);  /* in case sanitizePlatformIndependentPath changed subdir */
+
+                if (longest_root < i->rootlen)
+                    longest_root = i->rootlen;
+            } /* else */
+
+            break;
+        } /* if */
+    } /* for */
+
+    __PHYSFS_platformReleaseMutex(stateLock);
+    return 1;
+} /* PHYSFS_setRoot */
+
+
 static int doMount(PHYSFS_Io *io, const char *fname,
                    const char *mountPoint, int appendToPath)
 {
@@ -2001,6 +2112,9 @@ int PHYSFS_symbolicLinksPermitted(void)
  *  like ".." which should be done once instead of once per archive. This also
  *  gives us license to treat (fname) as scratch space in this function.
  *
+ * (fname)'s buffer must have enough space available before it for this
+ *  function to prepend any root directory for this DirHandle.
+ *
  * Returns non-zero if string is safe, zero if there's a security issue.
  *  PHYSFS_getLastError() will specify what was wrong. (*fname) will be
  *  updated to point past any mount point elements so it is prepared to
@@ -2013,7 +2127,7 @@ static int verifyPath(DirHandle *h, char **_fname, int allowMissing)
     char *start;
     char *end;
 
-    if (*fname == '\0')  /* quick rejection. */
+    if ((*fname == '\0') && (!h->root))  /* quick rejection. */
         return 1;
 
     /* !!! FIXME: This codeblock sucks. */
@@ -2036,6 +2150,17 @@ static int verifyPath(DirHandle *h, char **_fname, int allowMissing)
         retval = 1;  /* may be reset, below. */
     } /* if */
 
+    /* prepend the root directory, if any. */
+    if (h->root)
+    {
+        const int isempty = (*fname == '\0');
+        fname -= h->rootlen + (isempty ? 0 : 1);
+        strcpy(fname, h->root);
+        if (!isempty)
+            fname[h->rootlen] = '/';
+        *_fname = fname;
+    } /* if */
+
     start = fname;
     if (!allowSymLinks)
     {
@@ -2081,20 +2206,19 @@ static int verifyPath(DirHandle *h, char **_fname, int allowMissing)
 } /* verifyPath */
 
 
+/* This must hold the stateLock before calling. */
 static int doMkdir(const char *_dname, char *dname)
 {
-    DirHandle *h;
+    DirHandle *h = writeDir;
     char *start;
     char *end;
     int retval = 0;
     int exists = 1;  /* force existance check on first path element. */
 
-    BAIL_IF_ERRPASS(!sanitizePlatformIndependentPath(_dname, dname), 0);
+    assert(h != NULL);
 
-    __PHYSFS_platformGrabMutex(stateLock);
-    BAIL_IF_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
-    h = writeDir;
-    BAIL_IF_MUTEX_ERRPASS(!verifyPath(h, &dname, 1), stateLock, 0);
+    BAIL_IF_ERRPASS(!sanitizePlatformIndependentPathWithRoot(h, _dname, dname), 0);
+    BAIL_IF_ERRPASS(!verifyPath(h, &dname, 1), 0);
 
     start = dname;
     while (1)
@@ -2110,7 +2234,12 @@ static int doMkdir(const char *_dname, char *dname)
             const int rc = h->funcs->stat(h->opaque, dname, &statbuf);
             if ((!rc) && (currentErrorCode() == PHYSFS_ERR_NOT_FOUND))
                 exists = 0;
-            retval = ((rc) && (statbuf.filetype == PHYSFS_FILETYPE_DIRECTORY));
+            /* verifyPath made sure that (dname) doesn't have symlinks if they aren't
+               allowed, but it's possible the mounted writeDir itself has symlinks in it,
+               (for example "/var" on iOS is a symlink, and the prefpath will be somewhere
+               under that)...if we mounted that writeDir, we must allow those symlinks here
+               unconditionally. */
+            retval = ( (rc) && ((statbuf.filetype == PHYSFS_FILETYPE_DIRECTORY) || (statbuf.filetype == PHYSFS_FILETYPE_SYMLINK)) );
         } /* if */
 
         if (!exists)
@@ -2126,7 +2255,6 @@ static int doMkdir(const char *_dname, char *dname)
         start = end + 1;
     } /* while */
 
-    __PHYSFS_platformReleaseMutex(stateLock);
     return retval;
 } /* doMkdir */
 
@@ -2138,30 +2266,26 @@ int PHYSFS_mkdir(const char *_dname)
     size_t len;
 
     BAIL_IF(!_dname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
-    len = strlen(_dname) + 1;
+
+    __PHYSFS_platformGrabMutex(stateLock);
+    BAIL_IF_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
+    len = strlen(_dname) + dirHandleRootLen(writeDir) + 1;
     dname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!dname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
+    BAIL_IF_MUTEX(!dname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
     retval = doMkdir(_dname, dname);
+    __PHYSFS_platformReleaseMutex(stateLock);
     __PHYSFS_smallFree(dname);
     return retval;
 } /* PHYSFS_mkdir */
 
 
+/* This must hold the stateLock before calling. */
 static int doDelete(const char *_fname, char *fname)
 {
-    int retval;
-    DirHandle *h;
-    BAIL_IF_ERRPASS(!sanitizePlatformIndependentPath(_fname, fname), 0);
-
-    __PHYSFS_platformGrabMutex(stateLock);
-
-    BAIL_IF_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
-    h = writeDir;
-    BAIL_IF_MUTEX_ERRPASS(!verifyPath(h, &fname, 0), stateLock, 0);
-    retval = h->funcs->remove(h->opaque, fname);
-
-    __PHYSFS_platformReleaseMutex(stateLock);
-    return retval;
+    DirHandle *h = writeDir;
+    BAIL_IF_ERRPASS(!sanitizePlatformIndependentPathWithRoot(h, _fname, fname), 0);
+    BAIL_IF_ERRPASS(!verifyPath(h, &fname, 0), 0);
+    return h->funcs->remove(h->opaque, fname);
 } /* doDelete */
 
 
@@ -2171,11 +2295,13 @@ int PHYSFS_delete(const char *_fname)
     char *fname;
     size_t len;
 
-    BAIL_IF(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
-    len = strlen(_fname) + 1;
+    __PHYSFS_platformGrabMutex(stateLock);
+    BAIL_IF_MUTEX(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
+    len = strlen(_fname) + dirHandleRootLen(writeDir) + 1;
     fname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
+    BAIL_IF_MUTEX(!fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
     retval = doDelete(_fname, fname);
+    __PHYSFS_platformReleaseMutex(stateLock);
     __PHYSFS_smallFree(fname);
     return retval;
 } /* PHYSFS_delete */
@@ -2184,17 +2310,20 @@ int PHYSFS_delete(const char *_fname)
 static DirHandle *getRealDirHandle(const char *_fname)
 {
     DirHandle *retval = NULL;
+    char *allocated_fname = NULL;
     char *fname = NULL;
     size_t len;
 
     BAIL_IF(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, NULL);
-    len = strlen(_fname) + 1;
-    fname = __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
+
+    __PHYSFS_platformGrabMutex(stateLock);
+    len = strlen(_fname) + longest_root + 2;
+    allocated_fname = __PHYSFS_smallAlloc(len);
+    BAIL_IF_MUTEX(!allocated_fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, NULL);
+    fname = allocated_fname + longest_root + 1;
     if (sanitizePlatformIndependentPath(_fname, fname))
     {
         DirHandle *i;
-        __PHYSFS_platformGrabMutex(stateLock);
         for (i = searchPath; i != NULL; i = i->next)
         {
             char *arcfname = fname;
@@ -2213,10 +2342,10 @@ static DirHandle *getRealDirHandle(const char *_fname)
                 } /* if */
             } /* if */
         } /* for */
-        __PHYSFS_platformReleaseMutex(stateLock);
     } /* if */
 
-    __PHYSFS_smallFree(fname);
+    __PHYSFS_platformReleaseMutex(stateLock);
+    __PHYSFS_smallFree(allocated_fname);
     return retval;
 } /* getRealDirHandle */
 
@@ -2411,15 +2540,18 @@ int PHYSFS_enumerate(const char *_fn, PHYSFS_EnumerateCallback cb, void *data)
 {
     PHYSFS_EnumerateCallbackResult retval = PHYSFS_ENUM_OK;
     size_t len;
+    char *allocated_fname;
     char *fname;
 
     BAIL_IF(!_fn, PHYSFS_ERR_INVALID_ARGUMENT, 0);
     BAIL_IF(!cb, PHYSFS_ERR_INVALID_ARGUMENT, 0);
 
-    len = strlen(_fn) + 1;
-    fname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
+    __PHYSFS_platformGrabMutex(stateLock);
 
+    len = strlen(_fn) + longest_root + 2;
+    allocated_fname = (char *) __PHYSFS_smallAlloc(len);
+    BAIL_IF_MUTEX(!allocated_fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
+    fname = allocated_fname + longest_root + 1;
     if (!sanitizePlatformIndependentPath(_fn, fname))
         retval = PHYSFS_ENUM_STOP;
     else
@@ -2427,8 +2559,6 @@ int PHYSFS_enumerate(const char *_fn, PHYSFS_EnumerateCallback cb, void *data)
         DirHandle *i;
         SymlinkFilterData filterdata;
 
-        __PHYSFS_platformGrabMutex(stateLock);
-
         if (!allowSymLinks)
         {
             memset(&filterdata, '\0', sizeof (filterdata));
@@ -2477,10 +2607,11 @@ int PHYSFS_enumerate(const char *_fn, PHYSFS_EnumerateCallback cb, void *data)
             } /* else if */
         } /* for */
 
-        __PHYSFS_platformReleaseMutex(stateLock);
     } /* if */
 
-    __PHYSFS_smallFree(fname);
+    __PHYSFS_platformReleaseMutex(stateLock);
+
+    __PHYSFS_smallFree(allocated_fname);
 
     return (retval == PHYSFS_ENUM_ERROR) ? 0 : 1;
 } /* PHYSFS_enumerate */
@@ -2541,43 +2672,43 @@ int PHYSFS_isSymbolicLink(const char *fname)
 } /* PHYSFS_isSymbolicLink */
 
 
-static PHYSFS_File *doOpenWrite(const char *_fname, int appending)
+static PHYSFS_File *doOpenWrite(const char *_fname, const int appending)
 {
     FileHandle *fh = NULL;
+    DirHandle *h;
     size_t len;
     char *fname;
 
     BAIL_IF(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
-    len = strlen(_fname) + 1;
-    fname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
-
-    if (sanitizePlatformIndependentPath(_fname, fname))
-    {
-        PHYSFS_Io *io = NULL;
-        DirHandle *h = NULL;
-        const PHYSFS_Archiver *f;
 
     __PHYSFS_platformGrabMutex(stateLock);
 
-        GOTO_IF(!writeDir, PHYSFS_ERR_NO_WRITE_DIR, doOpenWriteEnd);
-
     h = writeDir;
-        GOTO_IF_ERRPASS(!verifyPath(h, &fname, 0), doOpenWriteEnd);
+    BAIL_IF_MUTEX(!h, PHYSFS_ERR_NO_WRITE_DIR, stateLock, 0);
 
-        f = h->funcs;
+    len = strlen(_fname) + dirHandleRootLen(h) + 1;
+    fname = (char *) __PHYSFS_smallAlloc(len);
+    BAIL_IF_MUTEX(!fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
+
+    if (sanitizePlatformIndependentPathWithRoot(h, _fname, fname))
+    {
+        PHYSFS_Io *io = NULL;
+        char *arcfname = fname;
+        if (verifyPath(h, &arcfname, 0))
+        {
+            const PHYSFS_Archiver *f = h->funcs;
             if (appending)
-            io = f->openAppend(h->opaque, fname);
+                io = f->openAppend(h->opaque, arcfname);
             else
-            io = f->openWrite(h->opaque, fname);
-
-        GOTO_IF_ERRPASS(!io, doOpenWriteEnd);
+                io = f->openWrite(h->opaque, arcfname);
 
+            if (io)
+            {
                 fh = (FileHandle *) allocator.Malloc(sizeof (FileHandle));
                 if (fh == NULL)
                 {
                     io->destroy(io);
-            GOTO(PHYSFS_ERR_OUT_OF_MEMORY, doOpenWriteEnd);
+                    PHYSFS_setErrorCode(PHYSFS_ERR_OUT_OF_MEMORY);
                 } /* if */
                 else
                 {
@@ -2587,10 +2718,11 @@ static PHYSFS_File *doOpenWrite(const char *_fname, int appending)
                     fh->next = openWriteList;
                     openWriteList = fh;
                 } /* else */
-
-        doOpenWriteEnd:
-        __PHYSFS_platformReleaseMutex(stateLock);
             } /* if */
+        } /* if */
+    } /* if */
+
+    __PHYSFS_platformReleaseMutex(stateLock);
 
     __PHYSFS_smallFree(fname);
     return ((PHYSFS_File *) fh);
@@ -2612,22 +2744,25 @@ PHYSFS_File *PHYSFS_openAppend(const char *filename)
 PHYSFS_File *PHYSFS_openRead(const char *_fname)
 {
     FileHandle *fh = NULL;
+    char *allocated_fname;
     char *fname;
     size_t len;
 
     BAIL_IF(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
-    len = strlen(_fname) + 1;
-    fname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
-
-    if (sanitizePlatformIndependentPath(_fname, fname))
-    {
-        DirHandle *i = NULL;
-        PHYSFS_Io *io = NULL;
 
     __PHYSFS_platformGrabMutex(stateLock);
 
-        GOTO_IF(!searchPath, PHYSFS_ERR_NOT_FOUND, openReadEnd);
+    BAIL_IF_MUTEX(!searchPath, PHYSFS_ERR_NOT_FOUND, stateLock, 0);
+
+    len = strlen(_fname) + longest_root + 2;
+    allocated_fname = (char *) __PHYSFS_smallAlloc(len);
+    BAIL_IF_MUTEX(!allocated_fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
+    fname = allocated_fname + longest_root + 1;
+
+    if (sanitizePlatformIndependentPath(_fname, fname))
+    {
+        PHYSFS_Io *io = NULL;
+        DirHandle *i;
 
         for (i = searchPath; i != NULL; i = i->next)
         {
@@ -2640,27 +2775,28 @@ PHYSFS_File *PHYSFS_openRead(const char *_fname)
             } /* if */
         } /* for */
 
-        GOTO_IF_ERRPASS(!io, openReadEnd);
-
+        if (io)
+        {
             fh = (FileHandle *) allocator.Malloc(sizeof (FileHandle));
             if (fh == NULL)
             {
                 io->destroy(io);
-            GOTO(PHYSFS_ERR_OUT_OF_MEMORY, openReadEnd);
+                PHYSFS_setErrorCode(PHYSFS_ERR_OUT_OF_MEMORY);
             } /* if */
-
+            else
+            {
                 memset(fh, '\0', sizeof (FileHandle));
                 fh->io = io;
                 fh->forReading = 1;
                 fh->dirHandle = i;
                 fh->next = openReadList;
                 openReadList = fh;
-
-        openReadEnd:
-        __PHYSFS_platformReleaseMutex(stateLock);
+            } /* else */
+        } /* if */
     } /* if */
 
-    __PHYSFS_smallFree(fname);
+    __PHYSFS_platformReleaseMutex(stateLock);
+    __PHYSFS_smallFree(allocated_fname);
     return ((PHYSFS_File *) fh);
 } /* PHYSFS_openRead */
 
@@ -2993,14 +3129,12 @@ int PHYSFS_flush(PHYSFS_File *handle)
 int PHYSFS_stat(const char *_fname, PHYSFS_Stat *stat)
 {
     int retval = 0;
+    char *allocated_fname;
     char *fname;
     size_t len;
 
     BAIL_IF(!_fname, PHYSFS_ERR_INVALID_ARGUMENT, 0);
     BAIL_IF(!stat, PHYSFS_ERR_INVALID_ARGUMENT, 0);
-    len = strlen(_fname) + 1;
-    fname = (char *) __PHYSFS_smallAlloc(len);
-    BAIL_IF(!fname, PHYSFS_ERR_OUT_OF_MEMORY, 0);
 
     /* set some sane defaults... */
     stat->filesize = -1;
@@ -3010,6 +3144,12 @@ int PHYSFS_stat(const char *_fname, PHYSFS_Stat *stat)
     stat->filetype = PHYSFS_FILETYPE_OTHER;
     stat->readonly = 1;
 
+    __PHYSFS_platformGrabMutex(stateLock);
+    len = strlen(_fname) + longest_root + 2;
+    allocated_fname = (char *) __PHYSFS_smallAlloc(len);
+    BAIL_IF_MUTEX(!allocated_fname, PHYSFS_ERR_OUT_OF_MEMORY, stateLock, 0);
+    fname = allocated_fname + longest_root + 1;
+
     if (sanitizePlatformIndependentPath(_fname, fname))
     {
         if (*fname == '\0')
@@ -3022,7 +3162,6 @@ int PHYSFS_stat(const char *_fname, PHYSFS_Stat *stat)
         {
             DirHandle *i;
             int exists = 0;
-            __PHYSFS_platformGrabMutex(stateLock);
             for (i = searchPath; ((i != NULL) && (!exists)); i = i->next)
             {
                 char *arcfname = fname;
@@ -3040,11 +3179,11 @@ int PHYSFS_stat(const char *_fname, PHYSFS_Stat *stat)
                         exists = 1;
                 } /* else if */
             } /* for */
-            __PHYSFS_platformReleaseMutex(stateLock);
         } /* else */
     } /* if */
 
-    __PHYSFS_smallFree(fname);
+    __PHYSFS_platformReleaseMutex(stateLock);
+    __PHYSFS_smallFree(allocated_fname);
     return retval;
 } /* PHYSFS_stat */
 
@@ -3142,7 +3281,7 @@ static void setDefaultAllocator(void)
 } /* setDefaultAllocator */
 
 
-int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen)
+int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen, const int case_sensitive, const int only_usascii)
 {
     static char rootpath[2] = { '/', '\0' };
     size_t alloclen;
@@ -3150,6 +3289,8 @@ int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen)
     assert(entrylen >= sizeof (__PHYSFS_DirTreeEntry));
 
     memset(dt, '\0', sizeof (*dt));
+    dt->case_sensitive = case_sensitive;
+    dt->only_usascii = only_usascii;
 
     dt->root = (__PHYSFS_DirTreeEntry *) allocator.Malloc(entrylen);
     BAIL_IF(!dt->root, PHYSFS_ERR_OUT_OF_MEMORY, 0);
@@ -3170,9 +3311,10 @@ int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen)
 } /* __PHYSFS_DirTreeInit */
 
 
-static inline PHYSFS_uint32 hashPathName(__PHYSFS_DirTree *dt, const char *name)
+static PHYSFS_uint32 hashPathName(__PHYSFS_DirTree *dt, const char *name)
 {
-    return __PHYSFS_hashString(name, strlen(name)) % dt->hashBuckets;
+    const PHYSFS_uint32 hashval = dt->case_sensitive ? __PHYSFS_hashString(name) : dt->only_usascii ? __PHYSFS_hashStringCaseFoldUSAscii(name) : __PHYSFS_hashStringCaseFold(name);
+    return hashval % dt->hashBuckets;
 } /* hashPathName */
 
 
@@ -3233,6 +3375,7 @@ void *__PHYSFS_DirTreeAdd(__PHYSFS_DirTree *dt, char *name, const int isdir)
 /* Find the __PHYSFS_DirTreeEntry for a path in platform-independent notation. */
 void *__PHYSFS_DirTreeFind(__PHYSFS_DirTree *dt, const char *path)
 {
+    const int cs = dt->case_sensitive;
     PHYSFS_uint32 hashval;
     __PHYSFS_DirTreeEntry *prev = NULL;
     __PHYSFS_DirTreeEntry *retval;
@@ -3243,7 +3386,8 @@ void *__PHYSFS_DirTreeFind(__PHYSFS_DirTree *dt, const char *path)
     hashval = hashPathName(dt, path);
     for (retval = dt->hash[hashval]; retval; retval = retval->hashnext)
     {
-        if (strcmp(retval->name, path) == 0)
+        const int cmp = cs ? strcmp(retval->name, path) : PHYSFS_utf8stricmp(retval->name, path);
+        if (cmp == 0)
         {
             if (prev != NULL)  /* move this to the front of the list */
             {

src/physfs.h

@@ -145,7 +145,7 @@
  *   - .ISO (ISO9660 files, CD-ROM images)
  *   - .GRP (Build Engine groupfile archives)
  *   - .PAK (Quake I/II archive format)
- *   - .HOG (Descent I/II HOG file archives)
+ *   - .HOG (Descent I/II/III HOG file archives)
  *   - .MVL (Descent II movielib archives)
  *   - .WAD (DOOM engine archives)
  *   - .VDF (Gothic I/II engine archives)
@@ -225,7 +225,9 @@ extern "C" {
 
 #if defined(PHYSFS_DECL)
 /* do nothing. */
-#elif defined(_MSC_VER)
+#elif defined(PHYSFS_STATIC)
+#define PHYSFS_DECL   /**/
+#elif defined(_WIN32) || defined(__OS2__)
 #define PHYSFS_DECL __declspec(dllexport)
 #elif defined(__SUNPRO_C)
 #define PHYSFS_DECL __global
@@ -433,8 +435,8 @@ typedef struct PHYSFS_Version
 
 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
 #define PHYSFS_VER_MAJOR 3
-#define PHYSFS_VER_MINOR 0
-#define PHYSFS_VER_PATCH 2
+#define PHYSFS_VER_MINOR 3
+#define PHYSFS_VER_PATCH 0
 #endif  /* DOXYGEN_SHOULD_IGNORE_THIS */
 
 
@@ -493,6 +495,14 @@ typedef struct PHYSFS_Version
 PHYSFS_DECL void PHYSFS_getLinkedVersion(PHYSFS_Version *ver);
 
 
+#ifdef __ANDROID__
+typedef struct PHYSFS_AndroidInit
+{
+    void *jnienv;
+    void *context;
+} PHYSFS_AndroidInit;
+#endif
+
 /**
  * \fn int PHYSFS_init(const char *argv0)
  * \brief Initialize the PhysicsFS library.
@@ -502,11 +512,22 @@ PHYSFS_DECL void PHYSFS_getLinkedVersion(PHYSFS_Version *ver);
  * This should be called prior to any attempts to change your process's
  *  current working directory.
  *
+ * \warning On Android, argv0 should be a non-NULL pointer to a
+ *          PHYSFS_AndroidInit struct. This struct must hold a valid JNIEnv *
+ *          and a JNI jobject of a Context (either the application context or
+ *          the current Activity is fine). Both are cast to a void * so we
+ *          don't need jni.h included wherever physfs.h is. PhysicsFS
+ *          uses these objects to query some system details. PhysicsFS does
+ *          not hold a reference to the JNIEnv or Context past the call to
+ *          PHYSFS_init(). If you pass a NULL here, PHYSFS_init can still
+ *          succeed, but PHYSFS_getBaseDir() and PHYSFS_getPrefDir() will be
+ *          incorrect.
+ *
  *   \param argv0 the argv[0] string passed to your program's mainline.
  *          This may be NULL on most platforms (such as ones without a
  *          standard main() function), but you should always try to pass
- *          something in here. Unix-like systems such as Linux _need_ to
- *          pass argv[0] from main() in here.
+ *          something in here. Many Unix-like systems _need_ to pass argv[0]
+ *          from main() in here. See warning about Android, too!
  *  \return nonzero on success, zero on error. Specifics of the error can be
  *          gleaned from PHYSFS_getLastError().
  *
@@ -762,6 +783,15 @@ PHYSFS_DECL char **PHYSFS_getCdRomDirs(void);
  *
  * You should probably use the base dir in your search path.
  *
+ * \warning On most platforms, this is a directory; on Android, this gives
+ *          you the path to the app's package (APK) file. As APK files are
+ *          just .zip files, you can mount them in PhysicsFS like regular
+ *          directories. You'll probably want to call
+ *          PHYSFS_setRoot(basedir, "/assets") after mounting to make your
+ *          app's actual data available directly without all the Android
+ *          metadata and directory offset. Note that if you passed a NULL to
+ *          PHYSFS_init(), you will not get the APK file here.
+ *
  *  \return READ ONLY string of base dir in platform-dependent notation.
  *
  * \sa PHYSFS_getPrefDir
@@ -2702,10 +2732,10 @@ typedef PHYSFS_EnumerateCallbackResult (*PHYSFS_EnumerateCallback)(void *data,
  *
  * \code
  *
- * static int printDir(void *data, const char *origdir, const char *fname)
+ * static PHYSFS_EnumerateCallbackResult printDir(void *data, const char *origdir, const char *fname)
  * {
  *     printf(" * We've got [%s] in [%s].\n", fname, origdir);
- *     return 1;  // give me more data, please.
+ *     return PHYSFS_ENUM_OK;  // give me more data, please.
  * }
  *
  * // ...
@@ -3844,6 +3874,46 @@ PHYSFS_DECL int PHYSFS_deregisterArchiver(const char *ext);
 
 /* Everything above this line is part of the PhysicsFS 2.1 API. */
 
+
+/**
+ * \fn int PHYSFS_setRoot(const char *archive, const char *subdir)
+ * \brief Make a subdirectory of an archive its root directory.
+ *
+ * This lets you narrow down the accessible files in a specific archive. For
+ *  example, if you have x.zip with a file in y/z.txt, mounted to /a, if you
+ *  call PHYSFS_setRoot("x.zip", "/y"), then the call
+ *  PHYSFS_openRead("/a/z.txt") will succeed.
+ *
+ * You can change an archive's root at any time, altering the interpolated
+ *  file tree (depending on where paths shift, a different archive may be
+ *  providing various files). If you set the root to NULL or "/", the
+ *  archive will be treated as if no special root was set (as if the archive
+ *  was just mounted normally).
+ *
+ * Changing the root only affects future operations on pathnames; a file
+ *  that was opened from a path that changed due to a setRoot will not be
+ *  affected.
+ *
+ * Setting a new root is not limited to archives in the search path; you may
+ *  set one on the write dir, too, which might be useful if you have files
+ *  open for write and thus can't change the write dir at the moment.
+ *
+ * It is not an error to set a subdirectory that does not exist to be the
+ *  root of an archive; however, no files will be visible in this case. If
+ *  the missing directories end up getting created (a mkdir to the physical
+ *  filesystem, etc) then this will be reflected in the interpolated tree.
+ *
+ *    \param archive dir/archive on which to change root.
+ *    \param subdir new subdirectory to make the root of this archive.
+ *   \return nonzero on success, zero on failure. Use
+ *           PHYSFS_getLastErrorCode() to obtain the specific error.
+ */
+PHYSFS_DECL int PHYSFS_setRoot(const char *archive, const char *subdir);
+
+
+/* Everything above this line is part of the PhysicsFS 3.1 API. */
+
+
 #ifdef __cplusplus
 }
 #endif

src/physfs_archiver_7z.c

@@ -185,7 +185,7 @@ static int szipLoadEntries(SZIPinfo *info)
 {
     int retval = 0;
 
-    if (__PHYSFS_DirTreeInit(&info->tree, sizeof (SZIPentry)))
+    if (__PHYSFS_DirTreeInit(&info->tree, sizeof (SZIPentry), 1, 0))
     {
         const PHYSFS_uint32 count = info->db.NumFiles;
         PHYSFS_uint32 i;
@@ -285,12 +285,15 @@ static PHYSFS_Io *SZIP_openRead(void *opaque, const char *path)
                         &blockIndex, &outBuffer, &outBufferSize, &offset,
                         &outSizeProcessed, alloc, alloc);
     GOTO_IF(rc != SZ_OK, szipErrorCode(rc), SZIP_openRead_failed);
+    GOTO_IF(outBuffer == NULL, PHYSFS_ERR_OUT_OF_MEMORY, SZIP_openRead_failed);
 
     io->destroy(io);
     io = NULL;
 
-    buf = allocator.Malloc(outSizeProcessed);
-    GOTO_IF(rc != SZ_OK, PHYSFS_ERR_OUT_OF_MEMORY, SZIP_openRead_failed);
+    buf = allocator.Malloc(outSizeProcessed ? outSizeProcessed : 1);
+    GOTO_IF(buf == NULL, PHYSFS_ERR_OUT_OF_MEMORY, SZIP_openRead_failed);
+
+    if (outSizeProcessed > 0)
         memcpy(buf, outBuffer + offset, outSizeProcessed);
 
     alloc->Free(alloc, outBuffer);

src/physfs_archiver_grp.c

@@ -76,7 +76,7 @@ static void *GRP_openArchive(PHYSFS_Io *io, const char *name,
     BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &count, sizeof(count)), NULL);
     count = PHYSFS_swapULE32(count);
 
-    unpkarc = UNPK_openArchive(io);
+    unpkarc = UNPK_openArchive(io, 0, 1);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!grpLoadEntries(io, count, unpkarc))

src/physfs_archiver_hog.c

@@ -1,9 +1,9 @@
 /*
  * HOG support routines for PhysicsFS.
  *
- * This driver handles Descent I/II HOG archives.
+ * This driver handles Descent I/II/III HOG archives.
  *
- * The format is very simple:
+ * The Descent I/II format is very simple:
  *
  *   The file always starts with the 3-byte signature "DHF" (Descent
  *   HOG file). After that the files of a HOG are just attached after
@@ -23,10 +23,23 @@
  *
  * (That info is from http://www.descent2.com/ddn/specs/hog/)
  *
+ * Descent 3 moved to HOG2 format, which starts with the chars "HOG2",
+ *  then 32-bits for the number of contained files, 32 bits for the offset
+ *  to the first file's data, then 56 bytes of 0xFF (reserved?). Then for
+ *  each file, there's 36 bytes for filename (null-terminated, rest of bytes
+ *  are garbage), 32-bits unknown/reserved (always zero?), 32-bits of length
+ *  of file data, 32-bits of time since Unix epoch. Then immediately following,
+ *  for each file is their uncompressed content, you can find its offset
+ *  by starting at the initial data offset and adding the filesize of each
+ *  prior file.
+ *
+ * This information was found at:
+ *  https://web.archive.org/web/20020213004051/http://descent-3.com/ddn/specs/hog/
+ *
+ *
  * Please see the file LICENSE.txt in the source's root directory.
  *
- *  This file written by Bradley Bell.
- *  Based on grp.c by Ryan C. Gordon.
+ * This file written by Bradley Bell and Ryan C. Gordon.
  */
 
 #define __PHYSICSFS_INTERNAL__
@@ -34,7 +47,15 @@
 
 #if PHYSFS_SUPPORTS_HOG
 
-static int hogLoadEntries(PHYSFS_Io *io, void *arc)
+static int readui32(PHYSFS_Io *io, PHYSFS_uint32 *val)
+{
+    PHYSFS_uint32 v;
+    BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &v, sizeof (v)), 0);
+    *val = PHYSFS_swapULE32(v);
+    return 1;
+} /* readui32 */
+
+static int hog1LoadEntries(PHYSFS_Io *io, void *arc)
 {
     const PHYSFS_uint64 iolen = io->length(io);
     PHYSFS_uint32 pos = 3;
@@ -45,11 +66,10 @@ static int hogLoadEntries(PHYSFS_Io *io, void *arc)
         char name[13];
 
         BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, name, 13), 0);
-        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &size, 4), 0);
+        BAIL_IF_ERRPASS(!readui32(io, &size), 0);
         name[12] = '\0';  /* just in case. */
         pos += 13 + 4;
 
-        size = PHYSFS_swapULE32(size);
         BAIL_IF_ERRPASS(!UNPK_addEntry(arc, name, 0, -1, -1, pos, size), 0);
         pos += size;
 
@@ -60,24 +80,60 @@ static int hogLoadEntries(PHYSFS_Io *io, void *arc)
     return 1;
 } /* hogLoadEntries */
 
+static int hog2LoadEntries(PHYSFS_Io *io, void *arc)
+{
+    PHYSFS_uint32 numfiles;
+    PHYSFS_uint32 pos;
+    PHYSFS_uint32 i;
+
+    BAIL_IF_ERRPASS(!readui32(io, &numfiles), 0);
+    BAIL_IF_ERRPASS(!readui32(io, &pos), 0);
+    BAIL_IF_ERRPASS(!io->seek(io, 68), 0);  /* skip to end of header. */
+
+    for (i = 0; i < numfiles; i++) {
+        char name[37];
+        PHYSFS_uint32 reserved;
+        PHYSFS_uint32 size;
+        PHYSFS_uint32 mtime;
+        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, name, 36), 0);
+        BAIL_IF_ERRPASS(!readui32(io, &reserved), 0);
+        BAIL_IF_ERRPASS(!readui32(io, &size), 0);
+        BAIL_IF_ERRPASS(!readui32(io, &mtime), 0);
+        name[36] = '\0';  /* just in case */
+        BAIL_IF_ERRPASS(!UNPK_addEntry(arc, name, 0, mtime, mtime, pos, size), 0);
+        pos += size;
+    }
+
+    return 1;
+} /* hog2LoadEntries */
+
 
 static void *HOG_openArchive(PHYSFS_Io *io, const char *name,
                              int forWriting, int *claimed)
 {
     PHYSFS_uint8 buf[3];
     void *unpkarc = NULL;
+    int hog1 = 0;
 
     assert(io != NULL);  /* shouldn't ever happen. */
     BAIL_IF(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
     BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, buf, 3), NULL);
-    BAIL_IF(memcmp(buf, "DHF", 3) != 0, PHYSFS_ERR_UNSUPPORTED, NULL);
+
+    if (memcmp(buf, "DHF", 3) == 0)
+        hog1 = 1;  /* original HOG (Descent 1 and 2) archive */
+    else
+    {
+        BAIL_IF(memcmp(buf, "HOG", 3) != 0, PHYSFS_ERR_UNSUPPORTED, NULL); /* Not HOG2 */
+        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, buf, 1), NULL);
+        BAIL_IF(buf[0] != '2', PHYSFS_ERR_UNSUPPORTED, NULL); /* Not HOG2 */
+    } /* else */
 
     *claimed = 1;
 
-    unpkarc = UNPK_openArchive(io);
+    unpkarc = UNPK_openArchive(io, 0, 1);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
-    if (!hogLoadEntries(io, unpkarc))
+    if (!(hog1 ? hog1LoadEntries(io, unpkarc) : hog2LoadEntries(io, unpkarc)))
     {
         UNPK_abandonArchive(unpkarc);
         return NULL;
@@ -92,7 +148,7 @@ const PHYSFS_Archiver __PHYSFS_Archiver_HOG =
     CURRENT_PHYSFS_ARCHIVER_API_VERSION,
     {
         "HOG",
-        "Descent I/II HOG file format",
+        "Descent I/II/III HOG file format",
         "Bradley Bell <btb@icculus.org>",
         "https://icculus.org/physfs/",
         0,  /* supportsSymlinks */

src/physfs_archiver_iso9660.c

@@ -251,7 +251,7 @@ static int parseVolumeDescriptor(PHYSFS_Io *io, PHYSFS_uint64 *_rootpos,
         pos += 2048;  /* each volume descriptor is 2048 bytes */
 
         BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &type, 1), 0);
-        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &identifier, 5), 0);
+        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, identifier, 5), 0);
 
         if (memcmp(identifier, "CD001", 5) != 0)  /* maybe not an iso? */
         {
@@ -346,7 +346,8 @@ static void *ISO9660_openArchive(PHYSFS_Io *io, const char *filename,
     if (!parseVolumeDescriptor(io, &rootpos, &len, &joliet, claimed))
         return NULL;
 
-    unpkarc = UNPK_openArchive(io);
+    /* !!! FIXME: check case_sensitive and only_usascii params for this archive. */
+    unpkarc = UNPK_openArchive(io, 1, 0);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!iso9660LoadEntries(io, joliet, "", rootpos, rootpos + len, unpkarc))

src/physfs_archiver_mvl.c

@@ -70,7 +70,7 @@ static void *MVL_openArchive(PHYSFS_Io *io, const char *name,
     BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &count, sizeof(count)), NULL);
     count = PHYSFS_swapULE32(count);
 
-    unpkarc = UNPK_openArchive(io);
+    unpkarc = UNPK_openArchive(io, 0, 1);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!mvlLoadEntries(io, count, unpkarc))

src/physfs_archiver_qpak.c

@@ -86,7 +86,8 @@ static void *QPAK_openArchive(PHYSFS_Io *io, const char *name,
 
     BAIL_IF_ERRPASS(!io->seek(io, pos), NULL);
 
-    unpkarc = UNPK_openArchive(io);
+    /* !!! FIXME: check case_sensitive and only_usascii params for this archive. */
+    unpkarc = UNPK_openArchive(io, 1, 0);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!qpakLoadEntries(io, count, unpkarc))

src/physfs_archiver_slb.c

@@ -36,7 +36,7 @@ static int slbLoadEntries(PHYSFS_Io *io, const PHYSFS_uint32 count, void *arc)
         BAIL_IF(backslash != '\\', PHYSFS_ERR_CORRUPT, 0);
 
         /* read the rest of the buffer, 63 bytes */
-        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, &name, 63), 0);
+        BAIL_IF_ERRPASS(!__PHYSFS_readAll(io, name, 63), 0);
         name[63] = '\0'; /* in case the name lacks the null terminator */
 
         /* convert backslashes */
@@ -94,7 +94,8 @@ static void *SLB_openArchive(PHYSFS_Io *io, const char *name,
     /* seek to the table of contents */
     BAIL_IF_ERRPASS(!io->seek(io, tocPos), NULL);
 
-    unpkarc = UNPK_openArchive(io);
+    /* !!! FIXME: check case_sensitive and only_usascii params for this archive. */
+    unpkarc = UNPK_openArchive(io, 1, 0);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!slbLoadEntries(io, count, unpkarc))

src/physfs_archiver_unpacked.c

@@ -285,12 +285,12 @@ void *UNPK_addEntry(void *opaque, char *name, const int isdir,
 } /* UNPK_addEntry */
 
 
-void *UNPK_openArchive(PHYSFS_Io *io)
+void *UNPK_openArchive(PHYSFS_Io *io, const int case_sensitive, const int only_usascii)
 {
     UNPKinfo *info = (UNPKinfo *) allocator.Malloc(sizeof (UNPKinfo));
     BAIL_IF(!info, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
 
-    if (!__PHYSFS_DirTreeInit(&info->tree, sizeof (UNPKentry)))
+    if (!__PHYSFS_DirTreeInit(&info->tree, sizeof (UNPKentry), case_sensitive, only_usascii))
     {
         allocator.Free(info);
         return NULL;

src/physfs_archiver_vdf.c

@@ -129,7 +129,8 @@ static void *VDF_openArchive(PHYSFS_Io *io, const char *name,
 
     BAIL_IF_ERRPASS(!io->seek(io, rootCatOffset), NULL);
 
-    unpkarc = UNPK_openArchive(io);
+    /* !!! FIXME: check case_sensitive and only_usascii params for this archive. */
+    unpkarc = UNPK_openArchive(io, 1, 0);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!vdfLoadEntries(io, count, vdfDosTimeToEpoch(timestamp), unpkarc))

src/physfs_archiver_wad.c

@@ -95,7 +95,7 @@ static void *WAD_openArchive(PHYSFS_Io *io, const char *name,
 
     BAIL_IF_ERRPASS(!io->seek(io, directoryOffset), 0);
 
-    unpkarc = UNPK_openArchive(io);
+    unpkarc = UNPK_openArchive(io, 0, 1);
     BAIL_IF_ERRPASS(!unpkarc, NULL);
 
     if (!wadLoadEntries(io, count, unpkarc))

src/physfs_archiver_zip.c

@@ -15,6 +15,11 @@
 #include <errno.h>
 #include <time.h>
 
+#if (PHYSFS_BYTEORDER == PHYSFS_LIL_ENDIAN)
+#define MINIZ_LITTLE_ENDIAN 1
+#else
+#define MINIZ_LITTLE_ENDIAN 0
+#endif
 #include "physfs_miniz.h"
 
 /*
@@ -568,7 +573,7 @@ static PHYSFS_sint64 zip_find_end_of_central_dir(PHYSFS_Io *io, PHYSFS_sint64 *l
         {
             if (!__PHYSFS_readAll(io, buf, maxread - 4))
                 return -1;
-            memcpy(&buf[maxread - 4], &extra, sizeof (extra));
+            memcpy(&buf[maxread - 4], extra, sizeof (extra));
             totalread += maxread - 4;
         } /* if */
         else
@@ -578,7 +583,7 @@ static PHYSFS_sint64 zip_find_end_of_central_dir(PHYSFS_Io *io, PHYSFS_sint64 *l
             totalread += maxread;
         } /* else */
 
-        memcpy(&extra, buf, sizeof (extra));
+        memcpy(extra, buf, sizeof (extra));
 
         for (i = maxread - 4; i > 0; i--)
         {
@@ -833,7 +838,10 @@ static int zip_parse_local(PHYSFS_Io *io, ZIPentry *entry)
     BAIL_IF_ERRPASS(!readui32(io, &ui32), 0);
     BAIL_IF(ui32 != ZIP_LOCAL_FILE_SIG, PHYSFS_ERR_CORRUPT, 0);
     BAIL_IF_ERRPASS(!readui16(io, &ui16), 0);
-    BAIL_IF(ui16 != entry->version_needed, PHYSFS_ERR_CORRUPT, 0);
+    /* Windows Explorer might rewrite the entire central directory, setting
+       this field to 2.0/MS-DOS for all files, so favor the local version,
+       which it leaves intact if it didn't alter that specific file. */
+    entry->version_needed = ui16;
     BAIL_IF_ERRPASS(!readui16(io, &ui16), 0);  /* general bits. */
     BAIL_IF_ERRPASS(!readui16(io, &ui16), 0);
     BAIL_IF(ui16 != entry->compression_method, PHYSFS_ERR_CORRUPT, 0);
@@ -1482,7 +1490,7 @@ static void *ZIP_openArchive(PHYSFS_Io *io, const char *name,
 
     if (!zip_parse_end_of_central_dir(info, &dstart, &cdir_ofs, &count))
         goto ZIP_openarchive_failed;
-    else if (!__PHYSFS_DirTreeInit(&info->tree, sizeof (ZIPentry)))
+    else if (!__PHYSFS_DirTreeInit(&info->tree, sizeof (ZIPentry), 1, 0))
         goto ZIP_openarchive_failed;
 
     root = (ZIPentry *) info->tree.root;

src/physfs_internal.h

@@ -38,7 +38,7 @@
 #include <malloc.h>
 #endif
 
-#ifdef PHYSFS_PLATFORM_SOLARIS
+#if defined(PHYSFS_PLATFORM_SOLARIS) || defined(PHYSFS_PLATFORM_LINUX)
 #include <alloca.h>
 #endif
 
@@ -69,7 +69,7 @@ extern "C" {
    All file-private symbols need to be marked "static".
    Everything shared between PhysicsFS sources needs to be in this
    file between the visibility pragma blocks. */
-#if PHYSFS_MINIMUM_GCC_VERSION(4,0) || defined(__clang__)
+#if !defined(_WIN32) && (PHYSFS_MINIMUM_GCC_VERSION(4,0) || defined(__clang__))
 #define PHYSFS_HAVE_PRAGMA_VISIBILITY 1
 #endif
 
@@ -95,6 +95,7 @@ extern const PHYSFS_Archiver __PHYSFS_Archiver_VDF;
 /* a real C99-compliant snprintf() is in Visual Studio 2015,
    but just use this everywhere for binary compatibility. */
 #if defined(_MSC_VER)
+#include <stdarg.h>
 int __PHYSFS_msvc_vsnprintf(char *outBuf, size_t size, const char *format, va_list ap);
 int __PHYSFS_msvc_snprintf(char *outBuf, size_t size, const char *format, ...);
 #define vsnprintf __PHYSFS_msvc_vsnprintf
@@ -108,14 +109,24 @@ const void *__PHYSFS_winrtCalcPrefDir(void);
 #endif
 
 /* atomic operations. */
+/* increment/decrement operations return the final incremented/decremented value. */
 #if defined(_MSC_VER) && (_MSC_VER >= 1500)
 #include <intrin.h>
 __PHYSFS_COMPILE_TIME_ASSERT(LongEqualsInt, sizeof (int) == sizeof (long));
 #define __PHYSFS_ATOMIC_INCR(ptrval) _InterlockedIncrement((long*)(ptrval))
 #define __PHYSFS_ATOMIC_DECR(ptrval) _InterlockedDecrement((long*)(ptrval))
 #elif defined(__clang__) || (defined(__GNUC__) && (((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100)) >= 40100))
-#define __PHYSFS_ATOMIC_INCR(ptrval) __sync_fetch_and_add(ptrval, 1)
-#define __PHYSFS_ATOMIC_DECR(ptrval) __sync_fetch_and_add(ptrval, -1)
+#define __PHYSFS_ATOMIC_INCR(ptrval) __sync_add_and_fetch(ptrval, 1)
+#define __PHYSFS_ATOMIC_DECR(ptrval) __sync_add_and_fetch(ptrval, -1)
+#elif defined(__WATCOMC__) && defined(__386__)
+extern __inline int _xadd_watcom(volatile int *a, int v);
+#pragma aux _xadd_watcom = \
+  "lock xadd [ecx], eax" \
+  parm [ecx] [eax] \
+  value [eax] \
+  modify exact [eax];
+#define __PHYSFS_ATOMIC_INCR(ptrval) (_xadd_watcom(ptrval, 1)+1)
+#define __PHYSFS_ATOMIC_DECR(ptrval) (_xadd_watcom(ptrval, -1)-1)
 #else
 #define PHYSFS_NEED_ATOMIC_OP_FALLBACK 1
 int __PHYSFS_ATOMIC_INCR(int *ptrval);
@@ -213,6 +224,7 @@ extern void SZIP_global_init(void);
 /* The latest supported PHYSFS_Archiver::version value. */
 #define CURRENT_PHYSFS_ARCHIVER_API_VERSION 0
 
+
 /* This byteorder stuff was lifted from SDL. https://www.libsdl.org/ */
 #define PHYSFS_LIL_ENDIAN  1234
 #define PHYSFS_BIG_ENDIAN  4321
@@ -220,11 +232,26 @@ extern void SZIP_global_init(void);
 #ifdef __linux__
 #include <endian.h>
 #define PHYSFS_BYTEORDER  __BYTE_ORDER
-#else /* __linux__ */
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
+#include <endian.h>
+#define PHYSFS_BYTEORDER  BYTE_ORDER
+#elif defined(__FreeBSD__) || defined(__NetBSD__)
+#include <sys/endian.h>
+#define PHYSFS_BYTEORDER  BYTE_ORDER
+/* predefs from newer gcc and clang versions: */
+#elif defined(__ORDER_LITTLE_ENDIAN__) && defined(__ORDER_BIG_ENDIAN__) && defined(__BYTE_ORDER__)
+#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#define PHYSFS_BYTEORDER   PHYSFS_LIL_ENDIAN
+#elif (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#define PHYSFS_BYTEORDER   PHYSFS_BIG_ENDIAN
+#else
+#error Unsupported endianness
+#endif /**/
+#else
 #if defined(__hppa__) || \
     defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
-    (defined(__MIPS__) && defined(__MISPEB__)) || \
-    defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
+    (defined(__MIPS__) && defined(__MIPSEB__)) || \
+    defined(__ppc__) || defined(__POWERPC__) || defined(__powerpc__) || defined(__PPC__) || \
     defined(__sparc__)
 #define PHYSFS_BYTEORDER   PHYSFS_BIG_ENDIAN
 #else
@@ -312,7 +339,18 @@ char *__PHYSFS_strdup(const char *str);
 /*
  * Give a hash value for a C string (uses djb's xor hashing algorithm).
  */
-PHYSFS_uint32 __PHYSFS_hashString(const char *str, size_t len);
+PHYSFS_uint32 __PHYSFS_hashString(const char *str);
+
+/*
+ * Give a hash value for a C string (uses djb's xor hashing algorithm), case folding as it goes.
+ */
+PHYSFS_uint32 __PHYSFS_hashStringCaseFold(const char *str);
+
+/*
+ * Give a hash value for a C string (uses djb's xor hashing algorithm), case folding as it goes,
+ *  assuming that this is only US-ASCII chars (one byte per char, only 'A' through 'Z' need folding).
+ */
+PHYSFS_uint32 __PHYSFS_hashStringCaseFoldUSAscii(const char *str);
 
 
 /*
@@ -348,9 +386,10 @@ int __PHYSFS_readAll(PHYSFS_Io *io, void *buf, const size_t len);
 
 /* These are shared between some archivers. */
 
+/* LOTS of legacy formats that only use US ASCII, not actually UTF-8, so let them optimize here. */
+void *UNPK_openArchive(PHYSFS_Io *io, const int case_sensitive, const int only_usascii);
 void UNPK_abandonArchive(void *opaque);
 void UNPK_closeArchive(void *opaque);
-void *UNPK_openArchive(PHYSFS_Io *io);
 void *UNPK_addEntry(void *opaque, char *name, const int isdir,
                     const PHYSFS_sint64 ctime, const PHYSFS_sint64 mtime,
                     const PHYSFS_uint64 pos, const PHYSFS_uint64 len);
@@ -382,10 +421,13 @@ typedef struct __PHYSFS_DirTree
     __PHYSFS_DirTreeEntry **hash;  /* all entries hashed for fast lookup. */
     size_t hashBuckets;            /* number of buckets in hash.          */
     size_t entrylen;    /* size in bytes of entries (including subclass). */
+    int case_sensitive;  /* non-zero to treat entries as case-sensitive in DirTreeFind */
+    int only_usascii;  /* non-zero to treat paths as US ASCII only (one byte per char, only 'A' through 'Z' are considered for case folding). */
 } __PHYSFS_DirTree;
 
 
-int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen);
+/* LOTS of legacy formats that only use US ASCII, not actually UTF-8, so let them optimize here. */
+int __PHYSFS_DirTreeInit(__PHYSFS_DirTree *dt, const size_t entrylen, const int case_sensitive, const int only_usascii);
 void *__PHYSFS_DirTreeAdd(__PHYSFS_DirTree *dt, char *name, const int isdir);
 void *__PHYSFS_DirTreeFind(__PHYSFS_DirTree *dt, const char *path);
 PHYSFS_EnumerateCallbackResult __PHYSFS_DirTreeEnumerate(void *opaque,
@@ -715,6 +757,11 @@ int __PHYSFS_platformGrabMutex(void *mutex);
  */
 void __PHYSFS_platformReleaseMutex(void *mutex);
 
+
+/* !!! FIXME: move to public API? */
+PHYSFS_uint32 __PHYSFS_utf8codepoint(const char **_str);
+
+
 #if PHYSFS_HAVE_PRAGMA_VISIBILITY
 #pragma GCC visibility pop
 #endif

src/physfs_lzmasdk.h

@@ -506,6 +506,7 @@ MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned mem
 #endif
 
 #if defined(MY_CPU_AMD64) \
+    || defined(_M_ARM64) \
     || defined(_M_IA64) \
     || defined(__AARCH64EL__) \
     || defined(__AARCH64EB__)
@@ -531,6 +532,8 @@ MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned mem
 
 #if defined(_WIN32) && defined(_M_ARM)
 #define MY_CPU_ARM_LE
+#elif defined(_WIN64) && defined(_M_ARM64)
+#define MY_CPU_ARM_LE
 #endif
 
 #if defined(_WIN32) && defined(_M_IA64)

src/physfs_miniz.h

@@ -22,12 +22,14 @@ typedef unsigned long mz_ulong;
 typedef void *(*mz_alloc_func)(void *opaque, unsigned int items, unsigned int size);
 typedef void (*mz_free_func)(void *opaque, void *address);
 
+#ifndef MINIZ_LITTLE_ENDIAN /* if not defined by PHYSFS */
 #if defined(_M_IX86) || defined(_M_X64)
 /* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 if integer loads and stores to unaligned addresses are acceptable on the target platform (slightly faster). */
 #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
 /* Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. */
 #define MINIZ_LITTLE_ENDIAN 1
 #endif
+#endif /**/
 
 #if defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__)
 /* Set MINIZ_HAS_64BIT_REGISTERS to 1 if the processor has 64-bit general purpose registers (enables 64-bit bitbuffer in inflator) */
@@ -117,6 +119,8 @@ struct tinfl_decompressor_tag
 #define MZ_MAX(a,b) (((a)>(b))?(a):(b))
 #define MZ_MIN(a,b) (((a)<(b))?(a):(b))
 #define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj))
+#define MZ_CLEAR_ARR(obj) memset((obj), 0, sizeof(obj))
+#define MZ_CLEAR_PTR(obj) memset((obj), 0, sizeof(*obj))
 
 #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
   #define MZ_READ_LE16(p) *((const mz_uint16 *)(p))
@@ -171,8 +175,12 @@ struct tinfl_decompressor_tag
        code_len = TINFL_FAST_LOOKUP_BITS; \
        do { \
           temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \
-       } while ((temp < 0) && (num_bits >= (code_len + 1))); if (temp >= 0) break; \
-    } TINFL_GET_BYTE(state_index, c); bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); num_bits += 8; \
+       } while ((temp < 0) && (num_bits >= (code_len + 1))); \
+       if (temp >= 0) break; \
+    } \
+    TINFL_GET_BYTE(state_index, c); \
+    bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \
+    num_bits += 8; \
   } while (num_bits < 15);
 
 /* TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex than you would initially expect because the zlib API expects the decompressor to never read */
@@ -274,13 +282,13 @@ static tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_
       else
       {
         for (counter = 0; counter < 3; counter++) { TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]); r->m_table_sizes[counter] += s_min_table_sizes[counter]; }
-        MZ_CLEAR_OBJ(r->m_tables[2].m_code_size); for (counter = 0; counter < r->m_table_sizes[2]; counter++) { mz_uint s; TINFL_GET_BITS(14, s, 3); r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (mz_uint8)s; }
+        MZ_CLEAR_ARR(r->m_tables[2].m_code_size); for (counter = 0; counter < r->m_table_sizes[2]; counter++) { mz_uint s; TINFL_GET_BITS(14, s, 3); r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (mz_uint8)s; }
         r->m_table_sizes[2] = 19;
       }
       for ( ; (int)r->m_type >= 0; r->m_type--)
       {
         int tree_next, tree_cur; tinfl_huff_table *pTable;
-        mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16]; pTable = &r->m_tables[r->m_type]; MZ_CLEAR_OBJ(total_syms); MZ_CLEAR_OBJ(pTable->m_look_up); MZ_CLEAR_OBJ(pTable->m_tree);
+        mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16]; pTable = &r->m_tables[r->m_type]; MZ_CLEAR_ARR(total_syms); MZ_CLEAR_ARR(pTable->m_look_up); MZ_CLEAR_ARR(pTable->m_tree);
         for (i = 0; i < r->m_table_sizes[r->m_type]; ++i) total_syms[pTable->m_code_size[i]]++;
         used_syms = 0, total = 0; next_code[0] = next_code[1] = 0;
         for (i = 1; i <= 15; ++i) { used_syms += total_syms[i]; next_code[i + 1] = (total = ((total + total_syms[i]) << 1)); }
@@ -699,3 +707,4 @@ static int mz_inflateEnd(mz_streamp pStream)
 
   For more information, please refer to <https://unlicense.org/>
 */
+

src/physfs_platform_android.c

@@ -0,0 +1,117 @@
+/*
+ * Android support routines for PhysicsFS.
+ *
+ * Please see the file LICENSE.txt in the source's root directory.
+ *
+ *  This file written by Ryan C. Gordon.
+ */
+
+#define __PHYSICSFS_INTERNAL__
+#include "physfs_platforms.h"
+
+#ifdef PHYSFS_PLATFORM_ANDROID
+
+#include <jni.h>
+#include <android/log.h>
+#include "physfs_internal.h"
+
+static char *prefpath = NULL;
+
+
+int __PHYSFS_platformInit(void)
+{
+    return 1;  /* always succeed. */
+} /* __PHYSFS_platformInit */
+
+
+void __PHYSFS_platformDeinit(void)
+{
+    if (prefpath)
+    {
+        allocator.Free(prefpath);
+        prefpath = NULL;
+    } /* if */
+} /* __PHYSFS_platformDeinit */
+
+
+void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
+{
+    /* no-op. */
+} /* __PHYSFS_platformDetectAvailableCDs */
+
+
+char *__PHYSFS_platformCalcBaseDir(const char *argv0)
+{
+    /* as a cheat, we expect argv0 to be a PHYSFS_AndroidInit* on Android. */
+    PHYSFS_AndroidInit *ainit = (PHYSFS_AndroidInit *) argv0;
+    char *retval = NULL;
+    JNIEnv *jenv = NULL;
+    jobject jcontext;
+
+    if (ainit == NULL)
+        return __PHYSFS_strdup("/");  /* oh well. */
+
+    jenv = (JNIEnv *) ainit->jnienv;
+    jcontext = (jobject) ainit->context;
+
+    if ((*jenv)->PushLocalFrame(jenv, 16) >= 0)
+    {
+        jobject jfileobj = 0;
+        jmethodID jmeth = 0;
+        jthrowable jexception = 0;
+        jstring jstr = 0;
+
+        jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jcontext), "getPackageResourcePath", "()Ljava/lang/String;");
+        jstr = (jstring)(*jenv)->CallObjectMethod(jenv, jcontext, jmeth);
+        jexception = (*jenv)->ExceptionOccurred(jenv);  /* this can't throw an exception, right? Just in case. */
+        if (jexception != NULL)
+            (*jenv)->ExceptionClear(jenv);
+        else
+        {
+            const char *path = (*jenv)->GetStringUTFChars(jenv, jstr, NULL);
+            retval = __PHYSFS_strdup(path);
+            (*jenv)->ReleaseStringUTFChars(jenv, jstr, path);
+        } /* else */
+
+        /* We only can rely on the Activity being valid during this function call,
+           so go ahead and grab the prefpath too. */
+        jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jcontext), "getFilesDir", "()Ljava/io/File;");
+        jfileobj = (*jenv)->CallObjectMethod(jenv, jcontext, jmeth);
+        if (jfileobj)
+        {
+            jmeth = (*jenv)->GetMethodID(jenv, (*jenv)->GetObjectClass(jenv, jfileobj), "getCanonicalPath", "()Ljava/lang/String;");
+            jstr = (jstring)(*jenv)->CallObjectMethod(jenv, jfileobj, jmeth);
+            jexception = (*jenv)->ExceptionOccurred(jenv);
+            if (jexception != NULL)
+                (*jenv)->ExceptionClear(jenv);
+            else
+            {
+                const char *path = (*jenv)->GetStringUTFChars(jenv, jstr, NULL);
+                const size_t len = strlen(path) + 2;
+                prefpath = allocator.Malloc(len);
+                if (prefpath)
+                    snprintf(prefpath, len, "%s/", path);
+                (*jenv)->ReleaseStringUTFChars(jenv, jstr, path);
+            } /* else */
+        } /* if */
+
+        (*jenv)->PopLocalFrame(jenv, NULL);
+    } /* if */
+
+    /* we can't return NULL because then PhysicsFS will treat argv0 as a string, but it's a non-NULL jobject! */
+    if (retval == NULL)
+        retval = __PHYSFS_strdup("/");   /* we pray this works. */
+
+    return retval;
+} /* __PHYSFS_platformCalcBaseDir */
+
+
+char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
+{
+    return __PHYSFS_strdup(prefpath ? prefpath : "/");
+} /* __PHYSFS_platformCalcPrefDir */
+
+#endif /* PHYSFS_PLATFORM_ANDROID */
+
+/* end of physfs_platform_android.c ... */
+

src/physfs_platform_apple.m

@@ -12,6 +12,7 @@
 #ifdef PHYSFS_PLATFORM_APPLE
 
 #include <Foundation/Foundation.h>
+#include <dlfcn.h>
 
 #include "physfs_internal.h"
 
@@ -99,7 +100,7 @@ static int darwinIsWholeMedia(io_service_t service)
 } /* darwinIsWholeMedia */
 
 
-static int darwinIsMountedDisc(char *bsdName, mach_port_t masterPort)
+static int darwinIsMountedDisc(char *bsdName, mach_port_t mainPort)
 {
     int retval = 0;
     CFMutableDictionaryRef matchingDict;
@@ -107,10 +108,10 @@ static int darwinIsMountedDisc(char *bsdName, mach_port_t masterPort)
     io_iterator_t iter;
     io_service_t service;
 
-    if ((matchingDict = IOBSDNameMatching(masterPort, 0, bsdName)) == NULL)
+    if ((matchingDict = IOBSDNameMatching(mainPort, 0, bsdName)) == NULL)
         return 0;
 
-    rc = IOServiceGetMatchingServices(masterPort, matchingDict, &iter);
+    rc = IOServiceGetMatchingServices(mainPort, matchingDict, &iter);
     if ((rc != KERN_SUCCESS) || (!iter))
         return 0;
 
@@ -158,13 +159,25 @@ static int darwinIsMountedDisc(char *bsdName, mach_port_t masterPort)
 void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
 {
 #if !defined(PHYSFS_NO_CDROM_SUPPORT)
+    /* macOS 12.0 changed "master" names to "main". */
+    typedef kern_return_t (*ioMainPortFn)(mach_port_t, mach_port_t *);
+    static ioMainPortFn ioMainPort = NULL;
     const char *devPrefix = "/dev/";
     const int prefixLen = strlen(devPrefix);
-    mach_port_t masterPort = 0;
+    mach_port_t mainPort = 0;
     struct statfs *mntbufp;
     int i, mounts;
 
-    if (IOMasterPort(MACH_PORT_NULL, &masterPort) != KERN_SUCCESS)
+    if (ioMainPort == NULL)
+    {
+        ioMainPort = (ioMainPortFn) dlsym(RTLD_DEFAULT, "IOMainPort");
+        if (!ioMainPort)
+            ioMainPort = (ioMainPortFn) dlsym(RTLD_DEFAULT, "IOMasterPort");
+        if (!ioMainPort)
+            return; /* oh well, no CD-ROMs for you. */
+    } /* if */
+
+    if (ioMainPort(MACH_PORT_NULL, &mainPort) != KERN_SUCCESS)
         BAIL(PHYSFS_ERR_OS_ERROR, ) /*return void*/;
 
     mounts = getmntinfo(&mntbufp, MNT_WAIT);  /* NOT THREAD SAFE! */
@@ -176,7 +189,7 @@ void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
             continue;
 
         dev += prefixLen;
-        if (darwinIsMountedDisc(dev, masterPort))
+        if (darwinIsMountedDisc(dev, mainPort))
             cb(data, mnt);
     } /* for */
 #endif /* !defined(PHYSFS_NO_CDROM_SUPPORT) */

src/physfs_platform_os2.c

@@ -222,7 +222,7 @@ static char *cvtPathToCorrectCase(char *buf)
         if (ptr != NULL)  /* isolate element to find (fname is the start). */
             *ptr = '\0';
 
-        rc = DosFindFirst((unsigned char *) spec, &hdir, FILE_DIRECTORY,
+        rc = DosFindFirst(spec, &hdir, FILE_DIRECTORY,
                           &fb, sizeof (fb), &count, FIL_STANDARD);
         if (rc == NO_ERROR)
         {
@@ -331,7 +331,7 @@ static int isCdRomDrive(ULONG drive)
     ULONG ul1, ul2;
     APIRET rc;
     HFILE hfile = NULLHANDLE;
-    unsigned char drivename[3] = { 0, ':', '\0' };
+    char drivename[3] = { 0, ':', '\0' };
 
     drivename[0] = 'A' + drive;
 
@@ -443,7 +443,7 @@ PHYSFS_EnumerateCallbackResult __PHYSFS_platformEnumerate(const char *dirname,
     __PHYSFS_smallFree(utf8);
     BAIL_IF_ERRPASS(!cpspec, PHYSFS_ENUM_ERROR);
 
-    rc = DosFindFirst((unsigned char *) cpspec, &hdir,
+    rc = DosFindFirst(cpspec, &hdir,
                       FILE_DIRECTORY | FILE_ARCHIVED |
                       FILE_READONLY | FILE_HIDDEN | FILE_SYSTEM,
                       &fb, sizeof (fb), &count, FIL_STANDARD);
@@ -535,7 +535,7 @@ int __PHYSFS_platformMkDir(const char *filename)
     APIRET rc;
     char *cpstr = cvtUtf8ToCodepage(filename);
     BAIL_IF_ERRPASS(!cpstr, 0);
-    rc = DosCreateDir((unsigned char *) cpstr, NULL);
+    rc = DosCreateDir(cpstr, NULL);
     allocator.Free(cpstr);
     BAIL_IF(rc != NO_ERROR, errcodeFromAPIRET(rc), 0);
     return 1;

src/physfs_platform_posix.c

@@ -6,8 +6,6 @@
  *  This file written by Ryan C. Gordon.
  */
 
-/* !!! FIXME: check for EINTR? */
-
 #define __PHYSICSFS_INTERNAL__
 #include "physfs_platforms.h"
 
@@ -157,19 +155,41 @@ int __PHYSFS_platformMkDir(const char *path)
 } /* __PHYSFS_platformMkDir */
 
 
+#if !defined(O_CLOEXEC) && defined(FD_CLOEXEC)
+static inline void set_CLOEXEC(int fildes)
+{
+    int flags = fcntl(fildes, F_GETFD);
+    if (flags != -1) {
+        fcntl(fildes, F_SETFD, flags | FD_CLOEXEC);
+    }
+}
+#endif
+
 static void *doOpen(const char *filename, int mode)
 {
     const int appending = (mode & O_APPEND);
     int fd;
     int *retval;
+
     errno = 0;
 
     /* O_APPEND doesn't actually behave as we'd like. */
     mode &= ~O_APPEND;
 
+#ifdef O_CLOEXEC
+    /* Add O_CLOEXEC if defined */
+    mode |= O_CLOEXEC;
+#endif
+
+    do {
         fd = open(filename, mode, S_IRUSR | S_IWUSR);
+    } while ((fd < 0) && (errno == EINTR));
     BAIL_IF(fd < 0, errcodeFromErrno(), NULL);
 
+#if !defined(O_CLOEXEC) && defined(FD_CLOEXEC)
+    set_CLOEXEC(fd);
+#endif
+
     if (appending)
     {
         if (lseek(fd, 0, SEEK_END) < 0)
@@ -219,7 +239,9 @@ PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buffer,
     if (!__PHYSFS_ui64FitsAddressSpace(len))
         BAIL(PHYSFS_ERR_INVALID_ARGUMENT, -1);
 
+    do {
         rc = read(fd, buffer, (size_t) len);
+    } while ((rc == -1) && (errno == EINTR));
     BAIL_IF(rc == -1, errcodeFromErrno(), -1);
     assert(rc >= 0);
     assert(rc <= len);
@@ -236,7 +258,9 @@ PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
     if (!__PHYSFS_ui64FitsAddressSpace(len))
         BAIL(PHYSFS_ERR_INVALID_ARGUMENT, -1);
 
+    do {
         rc = write(fd, (void *) buffer, (size_t) len);
+    } while ((rc == -1) && (errno == EINTR));
     BAIL_IF(rc == -1, errcodeFromErrno(), rc);
     assert(rc >= 0);
     assert(rc <= len);
@@ -275,8 +299,13 @@ PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
 int __PHYSFS_platformFlush(void *opaque)
 {
     const int fd = *((int *) opaque);
-    if ((fcntl(fd, F_GETFL) & O_ACCMODE) != O_RDONLY)
-        BAIL_IF(fsync(fd) == -1, errcodeFromErrno(), 0);
+    int rc = -1;
+    if ((fcntl(fd, F_GETFL) & O_ACCMODE) != O_RDONLY) {
+        do {
+            rc = fsync(fd);
+        } while ((rc == -1) && (errno == EINTR));
+        BAIL_IF(rc == -1, errcodeFromErrno(), 0);
+    }
     return 1;
 } /* __PHYSFS_platformFlush */
 
@@ -284,7 +313,10 @@ int __PHYSFS_platformFlush(void *opaque)
 void __PHYSFS_platformClose(void *opaque)
 {
     const int fd = *((int *) opaque);
-    (void) close(fd);  /* we don't check this. You should have used flush! */
+    int rc = -1;
+    do {
+        rc = close(fd);  /* we don't check this. You should have used flush! */
+    } while ((rc == -1) && (errno == EINTR));
     allocator.Free(opaque);
 } /* __PHYSFS_platformClose */
 

src/physfs_platform_unix.c

@@ -261,12 +261,6 @@ char *__PHYSFS_platformCalcBaseDir(const char *argv0)
         if (sysctl(mib, 4, fullpath, &buflen, NULL, 0) != -1)
             retval = __PHYSFS_strdup(fullpath);
     }
-    #elif defined(PHYSFS_PLATFORM_SOLARIS)
-    {
-        const char *path = getexecname();
-        if ((path != NULL) && (path[0] == '/'))  /* must be absolute path... */
-            retval = __PHYSFS_strdup(path);
-    }
     #endif
 
     /* If there's a Linux-like /proc filesystem, you can get the full path to
@@ -278,6 +272,7 @@ char *__PHYSFS_platformCalcBaseDir(const char *argv0)
         retval = readSymLink("/proc/self/exe");
         if (!retval) retval = readSymLink("/proc/curproc/file");
         if (!retval) retval = readSymLink("/proc/curproc/exe");
+        if (!retval) retval = readSymLink("/proc/self/path/a.out");
         if (retval == NULL)
         {
             /* older kernels don't have /proc/self ... try PID version... */
@@ -289,6 +284,15 @@ char *__PHYSFS_platformCalcBaseDir(const char *argv0)
         } /* if */
     } /* if */
 
+    #if defined(PHYSFS_PLATFORM_SOLARIS)
+    if (!retval)  /* try getexecname() if /proc didn't pan out. This may not be an absolute path! */
+    {
+        const char *path = getexecname();
+        if ((path != NULL) && (path[0] == '/'))  /* must be absolute path... */
+            retval = __PHYSFS_strdup(path);
+    } /* if */
+    #endif
+
     if (retval != NULL)  /* chop off filename. */
     {
         char *ptr = strrchr(retval, '/');

src/physfs_platform_windows.c

@@ -101,7 +101,7 @@ static char *unicodeToUtf8Heap(const WCHAR *w_str)
 
 static inline HANDLE winFindFirstFileW(const WCHAR *path, LPWIN32_FIND_DATAW d)
 {
-    #ifdef PHYSFS_PLATFORM_WINRT
+    #if defined(PHYSFS_PLATFORM_WINRT) || (_WIN32_WINNT >= 0x0501) // Windows XP+
     return FindFirstFileExW(path, FindExInfoStandard, d,
                             FindExSearchNameMatch, NULL, 0);
     #else
@@ -111,7 +111,7 @@ static inline HANDLE winFindFirstFileW(const WCHAR *path, LPWIN32_FIND_DATAW d)
 
 static inline BOOL winInitializeCriticalSection(LPCRITICAL_SECTION lpcs)
 {
-    #ifdef PHYSFS_PLATFORM_WINRT
+    #if defined(PHYSFS_PLATFORM_WINRT) || (_WIN32_WINNT >= 0x0600) // Windows Vista+
     return InitializeCriticalSectionEx(lpcs, 2000, 0);
     #else
     InitializeCriticalSection(lpcs);
@@ -123,7 +123,7 @@ static inline HANDLE winCreateFileW(const WCHAR *wfname, const DWORD mode,
                                     const DWORD creation)
 {
     const DWORD share = FILE_SHARE_READ | FILE_SHARE_WRITE;
-    #ifdef PHYSFS_PLATFORM_WINRT
+    #if defined(PHYSFS_PLATFORM_WINRT) || (_WIN32_WINNT >= 0x0602) // Windows 8+
     return CreateFile2(wfname, mode, share, creation, NULL);
     #else
     return CreateFileW(wfname, mode, share, NULL, creation,
@@ -134,7 +134,7 @@ static inline HANDLE winCreateFileW(const WCHAR *wfname, const DWORD mode,
 static BOOL winSetFilePointer(HANDLE h, const PHYSFS_sint64 pos,
                               PHYSFS_sint64 *_newpos, const DWORD whence)
 {
-    #ifdef PHYSFS_PLATFORM_WINRT
+    #if defined(PHYSFS_PLATFORM_WINRT) || (_WIN32_WINNT >= 0x0501) // Windows XP+
     LARGE_INTEGER lipos;
     LARGE_INTEGER linewpos;
     BOOL rc;
@@ -158,7 +158,7 @@ static BOOL winSetFilePointer(HANDLE h, const PHYSFS_sint64 pos,
 
 static PHYSFS_sint64 winGetFileSize(HANDLE h)
 {
-    #ifdef PHYSFS_PLATFORM_WINRT
+    #if defined(PHYSFS_PLATFORM_WINRT) || (_WIN32_WINNT >= 0x0600) // Windows Vista+
     FILE_STANDARD_INFO info;
     const BOOL rc = GetFileInformationByHandleEx(h, FileStandardInfo,
                                                  &info, sizeof (info));

src/physfs_platforms.h

@@ -40,9 +40,9 @@
 #  define PHYSFS_PLATFORM_POSIX 1
 #elif defined(macintosh)
 #  error Classic Mac OS support was dropped from PhysicsFS 2.0. Move to OS X.
-#elif defined(ANDROID)
+#elif defined(__ANDROID__)
  #  define PHYSFS_PLATFORM_LINUX 1
-#  define PHYSFS_PLATFORM_UNIX 1
+ #  define PHYSFS_PLATFORM_ANDROID 1
  #  define PHYSFS_PLATFORM_POSIX 1
  #  define PHYSFS_NO_CDROM_SUPPORT 1
 #elif defined(__linux)

src/physfs_unicode.c

@@ -21,8 +21,8 @@
 /*
  * This may not be the best value, but it's one that isn't represented
  *  in Unicode (0x10FFFF is the largest codepoint value). We return this
- *  value from utf8codepoint() if there's bogus bits in the
- *  stream. utf8codepoint() will turn this value into something
+ *  value from __PHYSFS_utf8codepoint() if there's bogus bits in the
+ *  stream. __PHYSFS_utf8codepoint() will turn this value into something
  *  reasonable (like a question mark), for text that wants to try to recover,
  *  whereas utf8valid() will use the value to determine if a string has bad
  *  bits.
@@ -35,7 +35,7 @@
  */
 #define UNICODE_BOGUS_CHAR_CODEPOINT '?'
 
-static PHYSFS_uint32 utf8codepoint(const char **_str)
+PHYSFS_uint32 __PHYSFS_utf8codepoint(const char **_str)
 {
     const char *str = *_str;
     PHYSFS_uint32 retval = 0;
@@ -188,6 +188,11 @@ static PHYSFS_uint32 utf8codepoint(const char **_str)
     } /* else if */
 
     return UNICODE_BOGUS_CHAR_VALUE;
+} /* __PHYSFS_utf8codepoint */
+
+static inline PHYSFS_uint32 utf8codepoint(const char **_str)
+{
+    return __PHYSFS_utf8codepoint(_str);
 } /* utf8codepoint */
 
 static PHYSFS_uint32 utf16codepoint(const PHYSFS_uint16 **_str)
@@ -210,7 +215,7 @@ static PHYSFS_uint32 utf16codepoint(const PHYSFS_uint16 **_str)
         else
         {
             src++;  /* eat the other surrogate. */
-            cp = (((cp - 0xD800) << 10) | (pair - 0xDC00));
+            cp = 0x10000 + (((cp - 0xD800) << 10) | (pair - 0xDC00));
         } /* else */
     } /* else if */
 
@@ -238,7 +243,7 @@ void PHYSFS_utf8ToUcs4(const char *src, PHYSFS_uint32 *dst, PHYSFS_uint64 len)
     len -= sizeof (PHYSFS_uint32);   /* save room for null char. */
     while (len >= sizeof (PHYSFS_uint32))
     {
-        PHYSFS_uint32 cp = utf8codepoint(&src);
+        PHYSFS_uint32 cp = __PHYSFS_utf8codepoint(&src);
         if (cp == 0)
             break;
         else if (cp == UNICODE_BOGUS_CHAR_VALUE)
@@ -256,7 +261,7 @@ void PHYSFS_utf8ToUcs2(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
     len -= sizeof (PHYSFS_uint16);   /* save room for null char. */
     while (len >= sizeof (PHYSFS_uint16))
     {
-        PHYSFS_uint32 cp = utf8codepoint(&src);
+        PHYSFS_uint32 cp = __PHYSFS_utf8codepoint(&src);
         if (cp == 0)
             break;
         else if (cp == UNICODE_BOGUS_CHAR_VALUE)
@@ -278,7 +283,7 @@ void PHYSFS_utf8ToUtf16(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
     len -= sizeof (PHYSFS_uint16);   /* save room for null char. */
     while (len >= sizeof (PHYSFS_uint16))
     {
-        PHYSFS_uint32 cp = utf8codepoint(&src);
+        PHYSFS_uint32 cp = __PHYSFS_utf8codepoint(&src);
         if (cp == 0)
             break;
         else if (cp == UNICODE_BOGUS_CHAR_VALUE)

test/test_physfs.c

@@ -31,8 +31,8 @@
 #include "physfs.h"
 
 #define TEST_VERSION_MAJOR  3
-#define TEST_VERSION_MINOR  0
-#define TEST_VERSION_PATCH  2
+#define TEST_VERSION_MINOR  3
+#define TEST_VERSION_PATCH  0
 
 static FILE *history_file = NULL;
 static PHYSFS_uint32 do_buffer_size = 0;
@@ -288,6 +288,53 @@ static int cmd_getmountpoint(char *args)
     return 1;
 } /* cmd_getmountpoint */
 
+
+static int cmd_setroot(char *args)
+{
+    char *archive;
+    char *subdir;
+    char *ptr;
+
+    archive = args;
+    if (*archive == '\"')
+    {
+        archive++;
+        ptr = strchr(archive, '\"');
+        if (ptr == NULL)
+        {
+            printf("missing string terminator in argument.\n");
+            return 1;
+        } /* if */
+        *(ptr) = '\0';
+    } /* if */
+    else
+    {
+        ptr = strchr(archive, ' ');
+        *ptr = '\0';
+    } /* else */
+
+    subdir = ptr + 1;
+    if (*subdir == '\"')
+    {
+        subdir++;
+        ptr = strchr(subdir, '\"');
+        if (ptr == NULL)
+        {
+            printf("missing string terminator in argument.\n");
+            return 1;
+        } /* if */
+        *(ptr) = '\0';
+    } /* if */
+
+    if (PHYSFS_setRoot(archive, subdir))
+        printf("Successful.\n");
+    else
+        printf("Failure. reason: %s.\n", PHYSFS_getLastError());
+
+    return 1;
+} /* cmd_setroot */
+
+
 static int cmd_removearchive(char *args)
 {
     if (*args == '\"')
@@ -1340,6 +1387,7 @@ static const command_info commands[] =
     { "stressbuffer",   cmd_stressbuffer,   1, "<bufferSize>"               },
     { "crc32",          cmd_crc32,          1, "<fileToHash>"               },
     { "getmountpoint",  cmd_getmountpoint,  1, "<dir>"                      },
+    { "setroot",        cmd_setroot,        2, "<archiveLocation> <root>"   },
     { NULL,             NULL,              -1, NULL                         }
 };