Add build system scaffolding and libc headers

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/libc/string/strncat.c b/lib/libc/string/strncat.c
new file mode 100644
index 00000000..ce0d8e24
--- /dev/null
+++ b/lib/libc/string/strncat.c
@@ -0,0 +1,19 @@
+#include <string.h>
+
+char *strncat(char *restrict s1, const char *restrict s2, size_t n)
+{
+	char *dest = s1;
+	const char *src = s2;
+
+	while (*dest != '\0')
+		dest++;
+
+	while (*src != '\0' && n > 0) {
+		*dest++ = *src++;
+		n--;
+	}
+
+	*dest = '\0';
+
+	return s1;
+}