1 files changed, 16 insertions, 3 deletions
diff --git a/src/lib/string.c b/src/lib/string.c
index a4be160..6ef0316 100644
--- a/src/lib/string.c
+++ b/src/lib/string.c
@@ -1,3 +1,5 @@
+#include <stddef.h>
+
 size_t strlen(const char *str) {
     size_t len = 0;
     while (str[len])
@@ -7,8 +9,19 @@ size_t strlen(const char *str) {
 
 size_t strcmp(const char *s1, const char *s2) {
     while (*s1 && (*s1 == *s2)) {
-	s1++;
-	s2++;
+        s1++;
+        s2++;
+    }
+    return *(const unsigned char *) s1 - *(const unsigned char *) s2;
+}
+
+char *strcat(char *dst, const char *src) {
+    unsigned int i = 0;
+    unsigned int j = 0;
+    for (i = 0; dst[i] != 0; i++) {}
+    for (j = 0; src[j] != 0; j++) {
+        dst[i + j] = src[j];
     }
-    return *(const unsigned char*)s1 - *(const unsigned char*)s2;
+    dst[i + j] = 0;
+    return dst;
 }