Parsing commandline arguments

ulib/string/string.c

@@ -111,3 +111,22 @@ char *string_strchr(const char *s, int c) {
     }
     return NULL;
 }
+
+// https://stackoverflow.com/questions/32560167/strncmp-implementation
+int string_strncmp( const char * s1, const char * s2, size_t n )
+{
+    while ( n && *s1 && ( *s1 == *s2 ) )
+    {
+        ++s1;
+        ++s2;
+        --n;
+    }
+    if ( n == 0 )
+    {
+        return 0;
+    }
+    else
+    {
+        return ( *(unsigned char *)s1 - *(unsigned char *)s2 );
+    }
+}