From 7d3ef3a6c98c79e6b5e681445399714926c8fdd1 Mon Sep 17 00:00:00 2001
From: Rockingcool <aadhavan@twomorecents.org>
Date: Wed, 8 Mar 2023 23:27:46 -0600
Subject: [PATCH] Added helper library for URL manipulation functions

---
 url_manipulation.c | 37 +++++++++++++++++++++++++++++++++++++
 url_manipulation.h | 12 ++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 url_manipulation.c
 create mode 100644 url_manipulation.h

diff --git a/url_manipulation.c b/url_manipulation.c
new file mode 100644
index 0000000..28a517b
--- /dev/null
+++ b/url_manipulation.c
@@ -0,0 +1,37 @@
+#include <string.h>
+#include <stdlib.h>
+
+char* url_to_proto(char* url) {
+        size_t length = strlen(url);
+	int sentinel = 0;
+	char* to_return = malloc(sizeof(char) * 10);
+	for (int i=0;i<length;i++) {
+		if (*(url + (sizeof(char) * i)) == ':') { /* If the character is ':' ...*/
+			sentinel = i; /* ...Then we stop scanning the string */
+		}
+	}
+	strncpy(to_return,url,sentinel);
+	return to_return;
+}
+
+char* url_to_hostname(char* url) {
+	/* This function relies on a hack-y assumption: that, given a string
+	that represents a URL (e.g. https://www.example.com), the host portion 
+	of the address is the length of the address minus (length of protocol + 3 ("://").
+	In this case that would be 23 - [5 (h,t,t,p,s) + 3 = 8]. */
+
+	size_t length = strlen(url);
+	char* protocol = url_to_proto(url);
+
+        char* to_return = malloc(sizeof(char) * 256);
+
+
+	/* This is a very roundabout way of saying that, starting from a certain point in the
+	URL (length of protocol string + 3), we are copying the rest of the string into another
+	substring. */
+	strncpy(to_return,url+(strlen(protocol) + 3),(length - (strlen(protocol) + 3)));
+
+		
+	
+}
+
diff --git a/url_manipulation.h b/url_manipulation.h
new file mode 100644
index 0000000..c4b32ef
--- /dev/null
+++ b/url_manipulation.h
@@ -0,0 +1,12 @@
+#include <string.h>
+
+/* url_to_proto - This takes in a URL, and returns the protocol.
+Example - 'https://example.org' would return 'https'. */
+
+char* url_to_proto(char* url);
+
+/* url_to_hostname - This takes in a URL, and returns the hostname.
+Example - 'https://example.org' would return 'example.org'. */
+
+char* url_to_hostname(char* url);
+