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symlinks: use unsigned int for flags

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The 'flags' and 'track_flags' fields in symlinks.c are used
strictly as a collection of bits (using bitwise operators including
&, |, ~). Using a signed integer for bitmasks may lead to undefined
behavior with shift operations and logic errors if the MSB is touched.

Change these fields from 'int' to 'unsigned int' to match our usage
patterns.

Signed-off-by: Tian Yuchen <a3205153416@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tian Yuchen
2026-02-17 01:20:28 +08:00
committed by Junio C Hamano
parent 83a69f1935
commit 96286f14b0
2 changed files with 9 additions and 8 deletions
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13
symlinks.c
View File

@@ -74,11 +74,12 @@ static inline void reset_lstat_cache(struct cache_def *cache)
*/
static int lstat_cache_matchlen(struct cache_def *cache,
const char *name, int len,
int *ret_flags, int track_flags,
unsigned int *ret_flags, unsigned int track_flags,
int prefix_len_stat_func)
{
int match_len, last_slash, last_slash_dir, previous_slash;
int save_flags, ret, saved_errno = 0;
unsigned int save_flags;
int ret, saved_errno = 0;
struct stat st;
if (cache->track_flags != track_flags ||
@@ -192,10 +193,10 @@ static int lstat_cache_matchlen(struct cache_def *cache,
return match_len;
}
static int lstat_cache(struct cache_def *cache, const char *name, int len,
int track_flags, int prefix_len_stat_func)
static unsigned int lstat_cache(struct cache_def *cache, const char *name, int len,
unsigned int track_flags, int prefix_len_stat_func)
{
int flags;
unsigned int flags;
(void)lstat_cache_matchlen(cache, name, len, &flags, track_flags,
prefix_len_stat_func);
return flags;
@@ -234,7 +235,7 @@ int check_leading_path(const char *name, int len, int warn_on_lstat_err)
static int threaded_check_leading_path(struct cache_def *cache, const char *name,
int len, int warn_on_lstat_err)
{
int flags;
unsigned int flags;
int match_len = lstat_cache_matchlen(cache, name, len, &flags,
FL_SYMLINK|FL_NOENT|FL_DIR, USE_ONLY_LSTAT);
int saved_errno = errno;

4
symlinks.h
View File

@@ -5,8 +5,8 @@
struct cache_def {
struct strbuf path;
int flags;
int track_flags;
unsigned int flags;
unsigned int track_flags;
int prefix_len_stat_func;
};
#define CACHE_DEF_INIT { \