diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/faccessat.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/faccessat.c | 73 |
1 files changed, 2 insertions, 71 deletions
diff --git a/sysdeps/unix/sysv/linux/faccessat.c b/sysdeps/unix/sysv/linux/faccessat.c index c00f431a45..4a6048ec79 100644 --- a/sysdeps/unix/sysv/linux/faccessat.c +++ b/sysdeps/unix/sysv/linux/faccessat.c @@ -24,7 +24,6 @@ #include <unistd.h> #include <sys/types.h> #include <alloca.h> -#include <kernel-features.h> #include <sysdep.h> @@ -41,76 +40,8 @@ faccessat (fd, file, mode, flag) return -1; } -#ifdef __NR_faccessat - if ((flag == 0 || ((flag & ~AT_EACCESS) == 0 && ! __libc_enable_secure)) -# ifndef __ASSUME_ATFCTS - && __have_atfcts >= 0 -# endif - ) - { - int result = INLINE_SYSCALL (faccessat, 3, fd, file, mode); -# ifndef __ASSUME_ATFCTS - if (result == -1 && errno == ENOSYS) - __have_atfcts = -1; - else -# endif - return result; - } -#endif - -#ifndef __ASSUME_ATFCTS - if ((!(flag & AT_EACCESS) || ! __libc_enable_secure) -# ifndef __NR_laccess /* Linux so far has no laccess syscall. */ - && !(flag & AT_SYMLINK_NOFOLLOW) -# endif - ) - { - /* If we are not set-uid or set-gid, access does the same. */ - 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; - } - - int result; - INTERNAL_SYSCALL_DECL (err); - -# ifdef __NR_laccess - if (flag & AT_SYMLINK_NOFOLLOW) - result = INTERNAL_SYSCALL (laccess, err, 2, file, mode); - else -# endif - result = INTERNAL_SYSCALL (access, err, 2, file, mode); - - if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err))) - { - __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf); - result = -1; - } - - return result; - } -#endif + if ((flag == 0 || ((flag & ~AT_EACCESS) == 0 && ! __libc_enable_secure))) + return INLINE_SYSCALL (faccessat, 3, fd, file, mode); struct stat64 stats; if (__fxstatat64 (_STAT_VER, fd, file, &stats, flag & AT_SYMLINK_NOFOLLOW)) |