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Symlink support for Windows Vista. Untested code.

This commit is contained in:
Ryan C. Gordon 2007-03-31 23:44:42 +00:00
parent 45967499d0
commit 9af599504d
2 changed files with 47 additions and 5 deletions
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3
CHANGELOG.txt
View File

@ -5,7 +5,8 @@
03312007 - Added a quick'n'dirty unpack utility to the extras directory. Moved
DIR archiver to start of the list, so we don't have to have every
other archiver fail to open a directory as a file before mounting
it. Fixed typos in makeos2.cmd and the Doxygen comments.
it. Fixed typos in makeos2.cmd and the Doxygen comments. Added
symlink support to windows.c for use on Vista-based systems.
03282007 - Logic bug in MVL/HOG/GRP archivers: only enumerated files when
looking in a directory other than the root, instead of enumerating
only for the root (thanks, Chris!). Minor fix for compilers that

49
platform/windows.c
View File

@ -578,10 +578,43 @@ int __PHYSFS_platformExists(const char *fname)
} /* __PHYSFS_platformExists */
static int isSymlinkAttrs(DWORD attr, DWORD tag)
{
return ( (attr & FILE_ATTRIBUTE_REPARSE_POINT) &&
((tag & IO_REPARSE_TAG_SYMLINK) == IO_REPARSE_TAG_SYMLINK) );
} /* isSymlinkAttrs */
int __PHYSFS_platformIsSymLink(const char *fname)
{
/* !!! FIXME: Vista has symlinks. Recheck this. */
return(0); /* no symlinks on win32. */
/* !!! FIXME:
* Windows Vista can have NTFS symlinks. Can older Windows releases have
* them when talking to a network file server? What happens when you
* mount a NTFS partition on XP that was plugged into a Vista install
* that made a symlink?
*/
int retval = 0;
LPWSTR wpath;
HANDLE dir;
WIN32_FIND_DATAW entw;
/* no unicode entry points? Probably no symlinks. */
BAIL_IF_MACRO(pFindFirstFileW == NULL, NULL, 0);
UTF8_TO_UNICODE_STACK_MACRO(wpath, fname);
BAIL_IF_MACRO(wpath == NULL, ERR_OUT_OF_MEMORY, 0);
/* !!! FIXME: filter wildcard chars? */
dir = pFindFirstFileW(wpath, &entw);
if (dir != INVALID_HANDLE_VALUE)
{
retval = isSymlinkAttrs(entw.dwFileAttributes, entw.dwReserved0);
FindClose(dir);
} /* if */
__PHYSFS_smallFree(wpath);
return(retval);
} /* __PHYSFS_platformIsSymlink */
@ -686,13 +719,17 @@ void __PHYSFS_platformEnumerateFiles(const char *dirname,
{
do
{
const DWORD attrs = entw.dwFileAttributes;
const DWORD tag = entw.dwReserved0;
const WCHAR *fn = entw.cFileName;
if ((fn[0] == '.') && (fn[1] == '\0'))
continue;
if ((fn[0] == '.') && (fn[1] == '.') && (fn[2] == '\0'))
continue;
if ((omitSymLinks) && (isSymlinkAttrs(attr, tag)))
continue;
utf8 = unicodeToUtf8Heap(entw.cFileName);
utf8 = unicodeToUtf8Heap(fn);
if (utf8 != NULL)
{
callback(callbackdata, origdir, utf8);
@ -705,13 +742,17 @@ void __PHYSFS_platformEnumerateFiles(const char *dirname,
{
do
{
const DWORD attrs = ent.dwFileAttributes;
const DWORD tag = ent.dwReserved0;
const char *fn = ent.cFileName;
if ((fn[0] == '.') && (fn[1] == '\0'))
continue;
if ((fn[0] == '.') && (fn[1] == '.') && (fn[2] == '\0'))
continue;
if ((omitSymLinks) && (isSymlinkAttrs(attr, tag)))
continue;
utf8 = codepageToUtf8Heap(ent.cFileName);
utf8 = codepageToUtf8Heap(fn);
if (utf8 != NULL)
{
callback(callbackdata, origdir, utf8);