mirrors/musl
0
0
Fork 0
mirror of git://git.musl-libc.org/musl synced 2024-11-27 03:53:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

add renameat2 linux syscall wrapper

Browse Source 
This syscall is available since Linux 3.15 and also implemented in
glibc from version 2.28. It is commonly used in filesystem or security
contexts.

Constants RENAME_NOREPLACE, RENAME_EXCHANGE, RENAME_WHITEOUT are
guarded by _GNU_SOURCE as with glibc.
This commit is contained in:
Tony Ambardar 2024-05-06 20:28:32 -07:00 committed by Rich Felker
parent 0079972992
commit 05ce67fea9
2 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/stdio.h
View File

@ -158,6 +158,13 @@ char *ctermid(char *);
#define L_ctermid 20
#endif
#if defined(_GNU_SOURCE)
#define RENAME_NOREPLACE (1 << 0)
#define RENAME_EXCHANGE (1 << 1)
#define RENAME_WHITEOUT (1 << 2)
int renameat2(int, const char *, int, const char *, unsigned);
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)

11
src/linux/renameat2.c Normal file
View File

@ -0,0 +1,11 @@
#define _GNU_SOURCE
#include <stdio.h>
#include "syscall.h"
int renameat2(int oldfd, const char *old, int newfd, const char *new, unsigned flags)
{
#ifdef SYS_renameat
if (!flags) return syscall(SYS_renameat, oldfd, old, newfd, new);
#endif
return syscall(SYS_renameat2, oldfd, old, newfd, new, flags);
}