Add build system scaffolding and libc headers

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/libc/string/strlcat.c b/lib/libc/string/strlcat.c
new file mode 100644
index 00000000..a2c333e0
--- /dev/null
+++ b/lib/libc/string/strlcat.c
@@ -0,0 +1,19 @@
+#include <string.h>
+
+size_t strlcat(char *restrict dst, const char *restrict src, size_t dstsize)
+{
+	size_t dlen = strlen(dst);
+	size_t slen = strlen(src);
+	size_t n = dstsize - dlen - 1;
+
+	if (n == 0)
+		return dlen + slen;
+
+	if (n > slen)
+		n = slen;
+
+	memcpy(dst + dlen, src, n);
+	dst[dlen + n] = '\0';
+
+	return dlen + n;
+}