physfs/platform/win32.c

295 lines
6.7 KiB
C

/*
* Unix support routines for PhysicsFS.
*
* Please see the file LICENSE in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#if (defined __STRICT_ANSI__)
#define __PHYSFS_DOING_STRICT_ANSI__
#endif
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <pthread.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <dirent.h>
#include <time.h>
#include <errno.h>
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
const char *__PHYSFS_platformDirSeparator = "\\";
static const char *win32strerror(void)
{
static char msgbuf[255];
FormatMessage(
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
&msgbuf,
0,
NULL
);
return(msgbuf);
} /* win32strerror */
char **__PHYSFS_platformDetectAvailableCDs(void)
{
char **retval = (char **) malloc(sizeof (char *));
int cd_count = 1; /* We count the NULL entry. */
char drive_str[4] = "x:\\";
int i;
for (drive_str[0] = 'A'; drive_str[0] <= 'Z'; drive_str[0]++)
{
if (GetDriveType(drive_str) == DRIVE_CDROM)
{
char **tmp = realloc(retval, sizeof (char *) * cd_count + 1);
if (tmp)
{
retval = tmp;
retval[cd_count-1] = (char *) malloc(4);
if (retval[cd_count-1])
{
strcpy(retval[cd_count-1], drive_str);
cd_count++;
} /* if */
} /* if */
} /* if */
} /* for */
retval[cd_count - 1] = NULL;
return(retval);
} /* __PHYSFS_detectAvailableCDs */
static char *copyEnvironmentVariable(const char *varname)
{
const char *envr = getenv(varname);
char *retval = NULL;
if (envr != NULL)
{
retval = malloc(strlen(envr) + 1);
if (retval != NULL)
strcpy(retval, envr);
} /* if */
return(retval);
} /* copyEnvironmentVariable */
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
DWORD buflen = 0;
char *retval = NULL;
char *filepart = NULL;
if (strchr(argv0, '\\') != NULL) /* default behaviour can handle this. */
return(NULL);
SearchPath(NULL, argv0, NULL, &buflen, NULL, NULL);
retval = (char *) malloc(buflen);
BAIL_IF_MACRO(!retval, ERR_OUT_OF_MEMORY, NULL);
SearchPath(NULL, argv0, NULL, &buflen, retval, &filepart);
return(retval);
} /* __PHYSFS_platformCalcBaseDir */
char *__PHYSFS_platformGetUserName(void)
{
LPDWORD bufsize = 0;
LPTSTR retval = NULL;
if (GetUserName(NULL, &bufsize) == 0) /* This SHOULD fail. */
{
retval = (LPTSTR) malloc(bufsize);
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
if (GetUserName(retval, &bufsize) == 0) /* ?! */
{
free(retval);
retval = NULL;
} /* if */
} /* if */
return((char *) retval);
} /* __PHYSFS_platformGetUserName */
char *__PHYSFS_platformGetUserDir(void)
{
return(NULL); /* no user dir on win32. */
} /* __PHYSFS_platformGetUserDir */
int __PHYSFS_platformGetThreadID(void)
{
return((int) GetCurrentThreadId());
} /* __PHYSFS_platformGetThreadID */
int __PHYSFS_platformStricmp(const char *x, const char *y)
{
return(stricmp(x, y));
} /* __PHYSFS_platformStricmp */
int __PHYSFS_platformExists(const char *fname)
{
return(GetFileAttributes(fname) != 0xffffffff);
} /* __PHYSFS_platformExists */
int __PHYSFS_platformIsSymLink(const char *fname)
{
return(0); /* no symlinks on win32. */
} /* __PHYSFS_platformIsSymlink */
int __PHYSFS_platformIsDirectory(const char *fname)
{
return((GetFileAttributes(fname) & FILE_ATTRIBUTE_DIRECTORY) != 0);
} /* __PHYSFS_platformIsDirectory */
char *__PHYSFS_platformCvtToDependent(const char *prepend,
const char *dirName,
const char *append)
{
int len = ((prepend) ? strlen(prepend) : 0) +
((append) ? strlen(append) : 0) +
strlen(dirName) + 1;
char *retval = malloc(len);
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
if (prepend)
strcpy(retval, prepend);
else
retval[0] = '\0';
strcat(retval, dirName);
if (append)
strcat(retval, append);
for (p = strchr(retval, '/'); p != NULL; p = strchr(p + 1, '/'))
*p = '\\';
return(retval);
} /* __PHYSFS_platformCvtToDependent */
/* Much like my college days, try to sleep for 10 milliseconds at a time... */
void __PHYSFS_platformTimeslice(void)
{
Sleep(10);
} /* __PHYSFS_platformTimeslice */
LinkedStringList *__PHYSFS_platformEnumerateFiles(const char *dirname,
int omitSymLinks)
{
LinkedStringList *retval = NULL;
LinkedStringList *l = NULL;
LinkedStringList *prev = NULL;
HANDLE dir;
WIN32_FIND_DATA ent;
dir = FindFirstFile(dirname, &ent);
BAIL_IF_MACRO(dir == INVALID_HANDLE_VALUE, win32strerror(), NULL);
for (; FineNextFile(dir, &ent) != 0; )
{
if (strcmp(ent.cFileName, ".") == 0)
continue;
if (strcmp(ent.cFileName, "..") == 0)
continue;
l = (LinkedStringList *) malloc(sizeof (LinkedStringList));
if (l == NULL)
break;
l->str = (char *) malloc(strlen(ent.cFileName) + 1);
if (l->str == NULL)
{
free(l);
break;
} /* if */
strcpy(l->str, ent.cFileName);
if (retval == NULL)
retval = l;
else
prev->next = l;
prev = l;
l->next = NULL;
} /* while */
FindClose(dir);
return(retval);
} /* __PHYSFS_platformEnumerateFiles */
int __PHYSFS_platformFileLength(FILE *handle)
{
fpos_t curpos;
int retval;
fgetpos(handle, &curpos);
fseek(handle, 0, SEEK_END);
retval = ftell(handle);
fsetpos(handle, &curpos);
return(retval);
} /* __PHYSFS_platformFileLength */
char *__PHYSFS_platformCurrentDir(void)
{
LPTSTR *retval;
DWORD buflen = 0;
GetCurrentDirectory(&buflen, NULL);
retval = (LPTSTR) malloc(buflen);
GetCurrentDirectory(&buflen, retval);
return((char *) retval);
} /* __PHYSFS_platformCurrentDir */
char *__PHYSFS_platformRealPath(const char *path)
{
return(_fullpath(NULL, path, _MAX_PATH));
} /* __PHYSFS_platformRealPath */
int __PHYSFS_platformMkDir(const char *path)
{
rc = CreateDirectory(path, NULL);
BAIL_IF_MACRO(rc == 0, win32strerror(), 0);
return(1);
} /* __PHYSFS_platformMkDir */
/* end of win32.c ... */