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-rw-r--r--src/unistd/getcwd.c7
1 files changed, 6 insertions, 1 deletions
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;
}