summaryrefslogtreecommitdiff
path: root/src/unistd/fchown.c
blob: 737b3672fcce506ec079ca819b2e91bd9eb872a9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include "syscall.h"

int fchown(int fd, uid_t uid, gid_t gid)
{
	int ret = __syscall(SYS_fchown, fd, uid, gid);
	if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
		return __syscall_ret(ret);

	char buf[15+3*sizeof(int)];
	__procfdname(buf, fd);
#ifdef SYS_chown
	return syscall(SYS_chown, buf, uid, gid);
#else
	return syscall(SYS_fchownat, AT_FDCWD, buf, uid, gid, 0);
#endif

}