diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/fxstatat64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/fxstatat64.c | 54 |
1 files changed, 42 insertions, 12 deletions
diff --git a/sysdeps/unix/sysv/linux/fxstatat64.c b/sysdeps/unix/sysv/linux/fxstatat64.c index 220d4abfcf..cb932b8e59 100644 --- a/sysdeps/unix/sysv/linux/fxstatat64.c +++ b/sysdeps/unix/sysv/linux/fxstatat64.c @@ -47,6 +47,38 @@ extern int __have_no_stat64; int __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) { + if (__builtin_expect (vers != _STAT_VER_LINUX, 0)) + { + __set_errno (EINVAL); + return -1; + } + + int result; + INTERNAL_SYSCALL_DECL (err); + +#ifdef __NR_fstatat64 +# ifndef __ASSUME_ATFCTS + if (__have_atfcts >= 0) +# endif + { + result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); +# ifndef __ASSUME_ATFCTS + if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1) + && INTERNAL_SYSCALL_ERRNO (result, err) == ENOSYS) + __have_atfcts = -1; + else +# endif + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) + return 0; + else + { + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); + return -1; + } + } +#endif + +#ifndef __ASSUME_ATFCTS if (flag & ~AT_SYMLINK_NOFOLLOW) { __set_errno (EINVAL); @@ -73,10 +105,7 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) file = buf; } - int result; - INTERNAL_SYSCALL_DECL (err); - -#if __ASSUME_STAT64_SYSCALL > 0 +# if __ASSUME_STAT64_SYSCALL > 0 if (flag & AT_SYMLINK_NOFOLLOW) result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file), CHECK_1 (st)); @@ -85,15 +114,15 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) CHECK_1 (st)); if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)) { -# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 +# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 if (st->__st_ino != (__ino_t) st->st_ino) st->st_ino = st->__st_ino; -# endif +# endif return result; } -#else +# else struct kernel_stat kst; -# if defined __NR_stat64 +# ifdef __NR_stat64 if (! __have_no_stat64) { if (flag & AT_SYMLINK_NOFOLLOW) @@ -105,10 +134,10 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)) { -# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 +# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 if (st->__st_ino != (__ino_t) st->st_ino) st->st_ino = st->__st_ino; -# endif +# endif return result; } if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS) @@ -116,7 +145,7 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) __have_no_stat64 = 1; } -# endif +# endif if (flag & AT_SYMLINK_NOFOLLOW) result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file), @@ -129,9 +158,10 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) return __xstat64_conv (vers, &kst, st); fail: -#endif +# endif __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); return -1; +#endif } libc_hidden_def (__fxstatat64) |