From 6cc006e821030853640030ded24b11e27f2d4ec7 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Thu, 18 Jul 2019 19:57:32 -0400
Subject: moving towards correct

---
 index.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/index.c b/index.c
index 87aeaa3..b617b91 100644
--- a/index.c
+++ b/index.c
@@ -1,7 +1,60 @@
 #define _XOPEN_SOURCE 700
+#include <fcntl.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
 #include "blog.h"
 
+#include <errno.h>
+
 void add_to_index(const char *path, const char *title)
 {
+	printf("Status: 200 OK\r\n");
+	printf("Content-Type: text/plain\r\n\r\n");
+
+	int blogdir = open(DATA_DIRECTORY, O_DIRECTORY);
+	if (blogdir == -1) {
+		printf("open(DATA_DIRECTORY): %s\n", strerror(errno));
+		return;
+	}
+
+	char *dir = strdup(path);
+	if (dir == NULL) {
+		printf("strdup(path): %s\n", strerror(errno));
+		return;
+	}
+
+	char index_path[FILENAME_MAX] = { 0 };
+	snprintf(index_path, sizeof(index_path), "%s/index.html", dirname(dir));
+
+	/* open index.html */
+	int index_fd = openat(blogdir, index_path, O_RDWR | O_CREAT, 0644);
+	if (index_fd == -1) {
+		printf("open(index_path): %s\n", strerror(errno));
+		return;
+	}
+
+	/* find the end of text */
+	off_t eot = 0;
+
+	if (eot == 0) {
+		dprintf(index_fd, HTML_HEAD, "index");
+	} else {
+		ftruncate(index_fd, eot);
+	}
+
+	/* add link */
+	dprintf(index_fd, "<a href=\"/%s\">%s</a><br>", path, title);
+
+	/* (re-)add footer */
+	dprintf(index_fd, HTML_TAIL, current_year());
+
+	close(index_fd);
+
+
+	free(dir);
+	close(blogdir);
 }
-- 
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