musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/unistd/getcwd.c b/src/unistd/getcwd.c
index b64b560f..2e540cd4 100644
--- a/src/unistd/getcwd.c
+++ b/src/unistd/getcwd.c

@@ -1,8 +1,13 @@

#include <unistd.h>

#include <errno.h>

+#include <limits.h>

+#include <string.h>

#include "syscall.h"

char *getcwd(char *buf, size_t size)

{

- return syscall(SYS_getcwd, buf, size) < 0 ? NULL : buf;

+ char tmp[PATH_MAX];

+ if (!buf) buf = tmp, size = PATH_MAX;

+ if (syscall(SYS_getcwd, buf, size) < 0) return 0;

+ return buf == tmp ? strdup(buf) : buf;

}