syscalls: fix cwd-related stuff

src/utils/string.c

@@ -48,3 +48,25 @@ size_t strlen(const char* str)
 		len++;
 	return len;
 }
+
+char *strcat(char *dest, const char *src) {
+    char *original_dest = dest; 
+
+    while (*dest != '\0') {
+        dest++;
+    }
+
+    while ((*dest++ = *src++) != '\0')
+        ;
+
+    return original_dest;
+}
+
+char *strcpy(char *dest, const char *src) {
+    char *original_dest = dest;
+    
+    while ((*dest++ = *src++) != '\0')
+        ;
+    
+    return original_dest;
+}