1#include <unistd.h>
 2#include "syscall.h"
 3
 4ssize_t readlinkat(int fd, const char *restrict path, char *restrict buf, size_t bufsize)
 5{
 6	char dummy[1];
 7	if (!bufsize) {
 8		buf = dummy;
 9		bufsize = 1;
10	}
11	int r = __syscall(SYS_readlinkat, fd, path, buf, bufsize);
12	if (buf == dummy && r > 0) r = 0;
13	return __syscall_ret(r);
14}