#include <unistd.h> | |
#include <errno.h> | |
#include <limits.h> | |
#include <string.h> | |
#include "syscall.h" | |
char *getcwd(char *buf, size_t size) | |
{ | |
char tmp[PATH_MAX]; | |
if (!buf) { | |
buf = tmp; | |
size = PATH_MAX; | |
} else if (!size) { | |
errno = EINVAL; | |
return 0; | |
} | |
if (syscall(SYS_getcwd, buf, size) < 0) return 0; | |
return buf == tmp ? strdup(buf) : buf; | |
} |