diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/closefrom_fallback.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/closefrom_fallback.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/closefrom_fallback.c b/sysdeps/unix/sysv/linux/closefrom_fallback.c index 61e71d388d..9cca55653a 100644 --- a/sysdeps/unix/sysv/linux/closefrom_fallback.c +++ b/sysdeps/unix/sysv/linux/closefrom_fallback.c @@ -22,9 +22,11 @@ #include <stdbool.h> /* Fallback code: iterates over /proc/self/fd, closing each file descriptor - that fall on the criteria. */ + that fall on the criteria. If DIRFD_FALLBACK is set, a failure on + /proc/self/fd open will trigger a fallback that tries to close a file + descriptor before proceed. */ _Bool -__closefrom_fallback (int from) +__closefrom_fallback (int from, _Bool dirfd_fallback) { bool ret = false; @@ -33,7 +35,7 @@ __closefrom_fallback (int from) if (dirfd == -1) { /* The closefrom should work even when process can't open new files. */ - if (errno == ENOENT) + if (errno == ENOENT || !dirfd_fallback) goto err; for (int i = from; i < INT_MAX; i++) |