Add build system scaffolding and libc headers

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/libc/pwd/getgrgid.c b/lib/libc/pwd/getgrgid.c
new file mode 100644
index 00000000..5e825c12
--- /dev/null
+++ b/lib/libc/pwd/getgrgid.c
@@ -0,0 +1,15 @@
+#include <pwd.h>
+#include <stddef.h>
+#include <limits.h>
+
+struct passwd *getpwuid(uid_t uid)
+{
+	static struct passwd pwd;
+	static char buf[LINE_MAX * 4];
+	struct passwd *res;
+
+	if (getpwuid_r(uid, &pwd, buf, sizeof(buf), &res) != 0)
+		return NULL;
+
+	return res;
+}