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hurd: Factorize at/non-at functions

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Non-at functions can be implemented by just calling the corresponding at
function with AT_FDCWD and zero at_flags.

In the linkat case, the at behavior is different (O_NOLINK), so this introduces
__linkat_common to pass O_NOLINK as appropriate.

lstat functions can also be implemented with fstatat by adding
__fstatat64_common which takes a flags parameter in addition to the at_flags
parameter,

In the end this factorizes chmod, chown, link, lstat64, mkdir, readlink,
rename, stat64, symlink, unlink, utimes.

This also makes __lstat, __lxstat64, __stat and __xstat64 directly use
__fstatat64_common instead of __lstat64 or __stat64.
This commit is contained in:
Samuel Thibault
2022-09-17 19:47:57 +00:00
parent 6841aed6c4
commit 7ae60af75b
29 changed files with 123 additions and 226 deletions
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14
sysdeps/mach/hurd/lstat64.c
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@@ -21,21 +21,13 @@
#include <fcntl.h>
#include <hurd.h>
#include <fstatat_common.h>
/* Get information about the file descriptor FD in BUF. */
int
__lstat64 (const char *file, struct stat64 *buf)
{
error_t err;
file_t port;
port = __file_name_lookup (file, O_NOLINK, 0);
if (port == MACH_PORT_NULL)
return -1;
err = __io_stat (port, buf);
__mach_port_deallocate (__mach_task_self (), port);
if (err)
return __hurd_fail (err);
return 0;
return __fstatat64_common (AT_FDCWD, file, buf, 0, O_NOLINK);
}
hidden_def (__lstat64)
weak_alias (__lstat64, lstat64)