1 #include <unistd.h>
2 #include "syscall.h"
3 
readlinkat(int fd,const char * restrict path,char * restrict buf,size_t bufsize)4 ssize_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 }
15