From f5be3640e7ca1e6978e199a0a767bda3f40def87 Mon Sep 17 00:00:00 2001
From: Jonathan McDowell <noodles@earth.li>
Date: Mon, 30 Sep 2013 12:22:59 +0100
Subject: [PATCH] Add -c option to maxpath / sixdegrees to specify config file

maxpath + sixdegrees weren't allowing a config file to be specified
in the same fashion as onak. Add the -c option so they do so, which
helps when using these tools in a non-system install setup.
---
 maxpath.c    | 14 +++++++++++++-
 sixdegrees.c | 18 +++++++++++++++---
 2 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/maxpath.c b/maxpath.c
index 81a2b22..25264ce 100644
--- a/maxpath.c
+++ b/maxpath.c
@@ -17,6 +17,7 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
+#include <getopt.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -83,7 +84,18 @@ void findmaxpath(unsigned long max)
 
 int main(int argc, char *argv[])
 {
-	readconfig(NULL);
+	int optchar;
+	char *configfile = NULL;
+
+	while ((optchar = getopt(argc, argv, "c:")) != -1 ) {
+		switch (optchar) {
+		case 'c':
+			configfile = strdup(optarg);
+			break;
+		}
+	}
+
+	readconfig(configfile);
 	initlogthing("maxpath", config.logfile);
 	config.dbbackend->initdb(true);
 	inithash();
diff --git a/sixdegrees.c b/sixdegrees.c
index e6a3594..738f626 100644
--- a/sixdegrees.c
+++ b/sixdegrees.c
@@ -17,8 +17,10 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
+#include <getopt.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "hash.h"
 #include "keydb.h"
@@ -132,13 +134,23 @@ void sixdegrees(uint64_t keyid)
 
 int main(int argc, char *argv[])
 {
+	int optchar;
+	char *configfile = NULL;
 	uint64_t keyid = 0x2DA8B985;
 
-	if (argc == 2) {
-		keyid = strtoll(argv[1], NULL, 16);
+	while ((optchar = getopt(argc, argv, "c:")) != -1 ) {
+		switch (optchar) {
+		case 'c':
+			configfile = strdup(optarg);
+			break;
+		}
+	}
+
+	if (optind < argc) {
+		keyid = strtoll(argv[optind], NULL, 16);
 	}
 
-	readconfig(NULL);
+	readconfig(configfile);
 	initlogthing("sixdegrees", config.logfile);
 	config.dbbackend->initdb(true);
 	inithash();
-- 
2.30.2