Add build system scaffolding and libc headers

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/libc/string/strpbrk.c b/lib/libc/string/strpbrk.c
new file mode 100644
index 00000000..21d6507f
--- /dev/null
+++ b/lib/libc/string/strpbrk.c
@@ -0,0 +1,16 @@
+#include <stddef.h>
+
+char *strpbrk(const char *s1, const char *s2)
+{
+	while (*s1 != '\0') {
+		const char *p = s2;
+		while (*p != '\0') {
+			if (*s1 == *p)
+				return (char *)s1;
+			p++;
+		}
+		s1++;
+	}
+
+	return NULL;
+}