diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/fxstatat64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/fxstatat64.c | 75 |
1 files changed, 5 insertions, 70 deletions
diff --git a/sysdeps/unix/sysv/linux/fxstatat64.c b/sysdeps/unix/sysv/linux/fxstatat64.c index 24bd51bf46..2baa75a7f1 100644 --- a/sysdeps/unix/sysv/linux/fxstatat64.c +++ b/sysdeps/unix/sysv/linux/fxstatat64.c @@ -26,8 +26,6 @@ #include <sysdep.h> #include <sys/syscall.h> -#include <kernel-features.h> - /* Get information about the file NAME in BUF. */ int @@ -42,76 +40,13 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag) 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); - return -1; - } - - char *buf = NULL; - - if (fd != AT_FDCWD && file[0] != '/') - { - size_t filelen = strlen (file); - if (__glibc_unlikely (filelen == 0)) - { - __set_errno (ENOENT); - return -1; - } - - static const char procfd[] = "/proc/self/fd/%d/%s"; - /* Buffer for the path name we are going to use. It consists of - - the string /proc/self/fd/ - - the file descriptor number - - the file name provided. - The final NUL is included in the sizeof. A bit of overhead - due to the format elements compensates for possible negative - numbers. */ - size_t buflen = sizeof (procfd) + sizeof (int) * 3 + filelen; - buf = alloca (buflen); - - __snprintf (buf, buflen, procfd, fd, file); - file = buf; - } - - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (lstat64, err, 2, file, st); + result = INTERNAL_SYSCALL (fstatat64, err, 4, fd, file, st, flag); + if (!__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 1)) + return 0; else - result = INTERNAL_SYSCALL (stat64, err, 2, file, st); - if (__glibc_likely (!INTERNAL_SYSCALL_ERROR_P (result, err))) { -# 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 - return result; + __set_errno (INTERNAL_SYSCALL_ERRNO (result, err)); + return -1; } - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - - return -1; -#endif } libc_hidden_def (__fxstatat64) |