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Backported fixes for bogus homedir bug to stable-2.0 branch. 

Fixes http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=553174
This commit is contained in:
Ryan C. Gordon 2010-03-21 12:29:49 -04:00
parent 0166d7302a
commit c710fb637a
2 changed files with 23 additions and 14 deletions
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24
physfs.c
View File

@ -605,18 +605,21 @@ static int freeDirHandle(DirHandle *dh, FileHandle *openList)
static char *calculateUserDir(void)
{
char *retval = NULL;
const char *str = NULL;
char *retval = __PHYSFS_platformGetUserDir();
if (retval != NULL)
{
/* make sure it really exists and is normalized. */
char *ptr = __PHYSFS_platformRealPath(retval);
allocator.Free(retval);
retval = ptr;
} /* if */
str = __PHYSFS_platformGetUserDir();
if (str != NULL)
retval = (char *) str;
else
if (retval == NULL)
{
const char *dirsep = PHYSFS_getDirSeparator();
const char *uname = __PHYSFS_platformGetUserName();
const char *str = (uname != NULL) ? uname : "default";
str = (uname != NULL) ? uname : "default";
retval = (char *) allocator.Malloc(strlen(baseDir) + strlen(str) +
strlen(dirsep) + 6);
@ -754,13 +757,6 @@ int PHYSFS_init(const char *argv0)
BAIL_IF_MACRO(!appendDirSep(&baseDir), NULL, 0);
userDir = calculateUserDir();
if (userDir != NULL)
{
ptr = __PHYSFS_platformRealPath(userDir);
allocator.Free(userDir);
userDir = ptr;
} /* if */
if ((userDir == NULL) || (!appendDirSep(&userDir)))
{
allocator.Free(baseDir);

13
platform/posix.c
View File

@ -97,8 +97,21 @@ char *__PHYSFS_platformGetUserName(void)
char *__PHYSFS_platformGetUserDir(void)
{
char *retval = __PHYSFS_platformCopyEnvironmentVariable("HOME");
/* if the environment variable was set, make sure it's really a dir. */
if (retval != NULL)
{
struct stat statbuf;
if ((stat(retval, &statbuf) == -1) || (S_ISDIR(statbuf.st_mode) == 0))
{
allocator.Free(retval);
retval = NULL;
} /* if */
} /* if */
if (retval == NULL)
retval = getUserDirByUID();
return(retval);
} /* __PHYSFS_platformGetUserDir */