3 files changed, 22 insertions, 2 deletions
diff --git a/lib/libc/Makefile b/lib/libc/Makefile
index b2aea30..ab68ab0 100644
--- a/lib/libc/Makefile
+++ b/lib/libc/Makefile
@@ -13,6 +13,8 @@ SRC=\
     string/memset.c \
     string/memcmp.c \
     string/memchr.c \
+    string/strlen.c \
+    string/strchr.c
 
 
 ${BUILDDIR}/libc.a: ${SRC}
diff --git a/lib/libc/string/strchr.c b/lib/libc/string/strchr.c
index 09b4d43..f8b3339 100644
--- a/lib/libc/string/strchr.c
+++ b/lib/libc/string/strchr.c
@@ -2,9 +2,8 @@
 
 char *strchr(const char *s, int c) {
 	do {
-		if ((char)c == *s) {
+		if ((char)c == *s) 
 			return (char*)s;
-		}
 	} while (*s++ != '\0');
 	return NULL;
 }
diff --git a/lib/libc/string/strlen.c b/lib/libc/string/strlen.c
new file mode 100644
index 0000000..a1a73b6
--- /dev/null
+++ b/lib/libc/string/strlen.c
@@ -0,0 +1,19 @@
+#include <string.h>
+
+size_t 
+strlen(const char *s)
+{
+	int n;
+	for (n = 0; s[n]; n++) 
+		;
+	return n;
+}
+
+size_t
+strnlen(const char *s, size_t max)
+{
+	int n;
+	for (n = 0; s[n] && n < max; n++)
+		;
+	return n;
+}