From cb36f1790a7b57eca22a9f1db1c6bb43769eff35 Mon Sep 17 00:00:00 2001
From: Jacob <windlejacob12@gmail.com>
Date: Sat, 18 Jan 2020 07:32:50 -0500
Subject: [PATCH 1/3] More refactorings, pretty much done!

---
 main.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/main.c b/main.c
index ae1ab9c..354a13a 100644
--- a/main.c
+++ b/main.c
@@ -31,8 +31,7 @@ static char *CONFIG;
  * @param mode whichever mode host file you want to open
  * @return FILE *
  */
-FILE *fopenHostsFile(char *mode)
-{
+FILE *fopenHostsFile(char *mode) {
     return fopen(HOSTFILE, mode);
 }
 
@@ -71,13 +70,13 @@ void modifyHostsFile(char *oldhost, char *newhost, int deleteHost) {
     newHostsFile[strlen(newHostsFile)] = EOF;
 
 //    // Seek to 0
-//    fseek(hostsFile, 0, SEEK_SET);
+    fseek(hostsFile, 0, SEEK_SET);
     fclose(hostsFile);
 
     // If this failed, write an error message to stderr
-//    ONFAILED(0, (fwrite(newHostsFile, sizeof(char), sizeof(newHostsFile), hostsFile))) {
-//        fprintf(stderr, "Did not write anything!\n");
-//    }
+    ONFAILED(0, (fwrite(newHostsFile, sizeof(char), sizeof(newHostsFile), hostsFile))) {
+        fprintf(stderr, "Did not write anything!\n");
+    }
     fprintf(stderr, "New hosts file: \n%s\n", newHostsFile);
 //    fclose(hostsFile);
 }
@@ -86,8 +85,7 @@ void modifyHostsFile(char *oldhost, char *newhost, int deleteHost) {
 /**
  * Block a hosts using the hostsFile in FILE
  */
-void blockHost(char *host)
-{
+void blockHost(char *host) {
     FILE *hostsFile = fopenHostsFile("a");
     char blockRule[256];
     sprintf(blockRule, "%s %s\n", blockString, host);

From fea10c2d6e2a42d7ab2d81fc37a14b02a4c0826c Mon Sep 17 00:00:00 2001
From: Jacob <windlejacob12@gmail.com>
Date: Sat, 18 Jan 2020 07:38:32 -0500
Subject: [PATCH 2/3] Documentation

---
 README.md | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index 4d2d3d1..7d40b16 100644
--- a/README.md
+++ b/README.md
@@ -6,21 +6,27 @@ This is a system utility written in C that allows one to quickly black hole host
 
 # How it Works
 
+The program "blackholes" hosts by setting their entries in /etc/hosts to be
+`0.0.0.0` so that when one tries to resolve the host in the browser the host will
+resolve to `0.0.0.0`.
+
 The program will wake up in a configurable timeframe continuously, reading a config file into memory and making appropriate changes to the /etc/hosts based on what it reads from the config.
 
+Starting the program like this allows for the program to run as a daemon:
+
+```bash
+sudo hb -period <wakeup period> -config <path/to/config> -daemon
+```
+
+The config file at the moment is just a newline separated list of hosts that will
+be added to the /etc/hosts file.
+
 # Motivations
 
 I would like to get better with C, and will be using C much more in the near future. In addition, I have issues with browsing to sites that hurt my productivity and am always on the command line.
 
 # TODO
 
-1. Get  delete working for my /etc/hosts editor.
-2. Daemonize this program to be started up by systemd.
-    - As part of daemonization, remember and remove added hosts on teardown.
-    - Can do this with an atexit handler, and a routine in main.
-3. Log dns requests that look at the hosts file -- To see how many go where
-4. As part of daemonization -- only block hosts within a time limit.
-    - Sleep, wakeup, check if time has passed or not, block/unblock host,
-      sleep again.
-5. Read hosts to block from a config file (to not pollute the /etc/hosts file)
-6. Design a unified interface for reading a hosts file. 
+- Debug logging
+- Systemd unit file for running as a daemon
+ 

From 91c01dd1920b6a1e5977627d5dc290c4ba9b9205 Mon Sep 17 00:00:00 2001
From: Jacob <windlejacob12@gmail.com>
Date: Sat, 18 Jan 2020 07:43:02 -0500
Subject: [PATCH 3/3] Wrong place to close hosts file

---
 main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index 354a13a..7dd0129 100644
--- a/main.c
+++ b/main.c
@@ -71,14 +71,14 @@ void modifyHostsFile(char *oldhost, char *newhost, int deleteHost) {
 
 //    // Seek to 0
     fseek(hostsFile, 0, SEEK_SET);
-    fclose(hostsFile);
+//    fclose(hostsFile);
 
     // If this failed, write an error message to stderr
     ONFAILED(0, (fwrite(newHostsFile, sizeof(char), sizeof(newHostsFile), hostsFile))) {
         fprintf(stderr, "Did not write anything!\n");
     }
     fprintf(stderr, "New hosts file: \n%s\n", newHostsFile);
-//    fclose(hostsFile);
+    fclose(hostsFile);
 }