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Diffstat (limited to 'sysdeps/unix/sysv/linux/linkat.c')
-rw-r--r--sysdeps/unix/sysv/linux/linkat.c87
1 files changed, 3 insertions, 84 deletions
diff --git a/sysdeps/unix/sysv/linux/linkat.c b/sysdeps/unix/sysv/linux/linkat.c
index 29cefb8192..e150486a30 100644
--- a/sysdeps/unix/sysv/linux/linkat.c
+++ b/sysdeps/unix/sysv/linux/linkat.c
@@ -21,9 +21,10 @@
#include <stdio.h>
#include <sysdep.h>
#include <unistd.h>
-#include <kernel-features.h>
+/* Consider moving to syscalls.list. */
+
/* Make a link to FROM named TO but relative paths in TO and FROM are
interpreted relative to FROMFD and TOFD respectively. */
int
@@ -34,87 +35,5 @@ linkat (fromfd, from, tofd, to, flags)
const char *to;
int flags;
{
- int result;
-
-#ifdef __NR_linkat
-# ifndef __ASSUME_ATFCTS
- if (__have_atfcts >= 0)
-# endif
- {
- result = INLINE_SYSCALL (linkat, 5, fromfd, from, tofd, to, flags);
-# ifndef __ASSUME_ATFCTS
- if (result == -1 && errno == ENOSYS)
- __have_atfcts = -1;
- else
-# endif
- return result;
- }
-#endif
-
-#ifndef __ASSUME_ATFCTS
- /* Without kernel support we cannot handle AT_SYMLINK_FOLLOW. */
- if (flags != 0)
- {
- __set_errno (EINVAL);
- return -1;
- }
-
- static const char procfd[] = "/proc/self/fd/%d/%s";
- char *buffrom = NULL;
-
- if (fromfd != AT_FDCWD && from[0] != '/')
- {
- size_t filelen = strlen (from);
- if (__glibc_unlikely (filelen == 0))
- {
- __set_errno (ENOENT);
- return -1;
- }
-
- /* 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;
- buffrom = alloca (buflen);
-
- __snprintf (buffrom, buflen, procfd, fromfd, from);
- from = buffrom;
- }
-
- char *bufto = NULL;
-
- if (tofd != AT_FDCWD && to[0] != '/')
- {
- size_t filelen = strlen (to);
- /* 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;
- bufto = alloca (buflen);
-
- __snprintf (bufto, buflen, procfd, tofd, to);
- to = bufto;
- }
-
- INTERNAL_SYSCALL_DECL (err);
-
- result = INTERNAL_SYSCALL (link, err, 2, from, to);
-
- if (__glibc_unlikely (INTERNAL_SYSCALL_ERROR_P (result, err)))
- {
- __atfct_seterrno_2 (INTERNAL_SYSCALL_ERRNO (result, err), tofd, bufto,
- fromfd, buffrom);
- result = -1;
- }
-
- return result;
-#endif
+ return INLINE_SYSCALL (linkat, 5, fromfd, from, tofd, to, flags);
}