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filesystem: dir: hand off file existence check to the OS if path starts with .. or ../

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This commit is contained in:
Alibek Omarov
2026-05-05 14:12:41 +05:00
committed by a1batross
parent 95cc6c4445
commit e9e885534a
1 changed files with 13 additions and 3 deletions
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16
filesystem/dir.c
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@@ -292,8 +292,6 @@ static inline qboolean FS_AppendToPath( char *dst, size_t *pi, const size_t len,
qboolean FS_FixFileCase( dir_t *dir, const char *path, char *dst, const size_t len, qboolean createpath )
{
const char *prev;
const char *next;
size_t i = 0;
if( !FS_AppendToPath( dst, &i, len, dir->name, path, "init" ))
@@ -303,7 +301,19 @@ qboolean FS_FixFileCase( dir_t *dir, const char *path, char *dst, const size_t l
if( COM_StringEmpty( path ))
return true;
for( prev = path, next = Q_strchrnul( prev, '/' );
// we can't and shouldn't track parent directories to not track the whole filesystem
// exit early for this case
// FIXME: track the path to catch other cases
if( !Q_strncmp( path, "..", 2 ) && ( path[2] == '\0' || path[2] == '/' ))
{
if( !FS_AppendToPath( dst, &i, len, path, path, "escape to parent directory" ))
return false;
// check file existense
return createpath ? true : FS_SysFileOrFolderExists( dst );
}
for( const char *prev = path, *next = Q_strchrnul( prev, '/' );
;
prev = next + 1, next = Q_strchrnul( prev, '/' ))
{