1#include <unistd.h>
2#include <errno.h>
3#include <fcntl.h>
4#include "syscall.h"
5
6int fchown(int fd, uid_t uid, gid_t gid)
7{
8 int ret = __syscall(SYS_fchown, fd, uid, gid);
9 if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
10 return __syscall_ret(ret);
11
12 char buf[15+3*sizeof(int)];
13 __procfdname(buf, fd);
14#ifdef SYS_chown
15 return syscall(SYS_chown, buf, uid, gid);
16#else
17 return syscall(SYS_fchownat, AT_FDCWD, buf, uid, gid, 0);
18#endif
19
20}