1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib/url.c b/src/lib/url.c
new file mode 100644
index 0000000..7a15558
--- /dev/null
+++ b/src/lib/url.c
@@ -0,0 +1,91 @@
+#include <lib/url.h>
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+
+//TODO: Audit this implementation. Potentially an arena alloc?
+
+int url_init(struct url *url, char *base)
+{
+	assert(url != NULL);
+
+	size_t len = strlen(base) + 1;
+	void *ptr = malloc(len);
+	
+	if (ptr == NULL)
+		return -URLINITERR;
+
+	url->buffer = ptr;
+	memcpy(url->buffer, base, len); 
+	url->len = len;
+	url->buffer[url->len - 1] = '\0';
+	
+	return SUCCESS;
+}
+
+void url_free(struct url *url)
+{
+	assert(url != NULL); 
+	free(url->buffer);
+}
+
+
+int url_copy(struct url *from, struct url *to)
+{
+	assert(from != NULL);
+	assert(to != NULL);
+
+	to->buffer = malloc(from->len);
+	if(to->buffer == NULL)
+		return -ERR;
+	
+	memcpy(to->buffer, from->buffer, from->len);
+		
+	to->len = from->len;
+	return SUCCESS;
+}
+
+int url_append(struct url *url, const char *add)
+{
+	assert(url != NULL);
+	assert(add != NULL);
+	
+	if (url->buffer == NULL || url->len < 8) {
+	    return -URLPATHERR;
+	}
+
+	url->len--;
+	size_t addlen = strlen(add);
+	size_t nlen = url->len + addlen + 1;
+
+	url->buffer = realloc(url->buffer, nlen);
+
+	memcpy(url->buffer + url->len, add, addlen);
+
+	url->len = nlen;
+	url->buffer[url->len - 1] = '\0';
+}
+
+int url_append_path(struct url *url, const char *add)
+{
+	assert(url != NULL);
+	assert(add != NULL);
+    
+	if (url->buffer == NULL || url->len < 8) {
+		return -URLPATHERR;
+	}
+	
+	url->buffer[url->len - 1] = '/'; //TODO: Check existence of "/"
+	size_t addlen = strlen(add);
+	size_t nlen = url->len + addlen + 1;
+
+	url->buffer = realloc(url->buffer, nlen);
+
+	memcpy(url->buffer + url->len, add, addlen);
+
+	url->len = nlen;
+	url->buffer[url->len - 1] = '\0';	
+}