c rewrite

1 files changed, 22 insertions, 0 deletions

diff --git a/src/name_from_url.c b/src/name_from_url.c
new file mode 100644
index 0000000..121fddd
--- /dev/null
+++ b/src/name_from_url.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "name_from_url.h"
+
+char* name_from_url(const char *url) {
+    size_t len = strlen(url);
+    const char *end = url + len;
+    while (end > url && *(end-1) == '/') {
+        end--;
+    }
+    const char *last_slash = end;
+    while (last_slash > url && *(last_slash-1) != '/') {
+        last_slash--;
+    }
+    if (last_slash < end) {
+        return strndup(last_slash, end - last_slash);
+    } else {
+        return strndup(url, end - url);
+    }
+}