Add notifier tool to be used with blocknotify from bitcoind

src/Makefile.am

@@ -7,7 +7,7 @@ lib_LTLIBRARIES = libckpool.la
 libckpool_la_SOURCES = libckpool.c libckpool.h sha2.c sha2.h
 libckpool_la_LIBADD = @PTHREAD_LIBS@ @MATH_LIBS@ @RT_LIBS@
 
-bin_PROGRAMS = ckpool ckpmsg
+bin_PROGRAMS = ckpool ckpmsg notifier
 ckpool_SOURCES = ckpool.c ckpool.h generator.c generator.h bitcoin.c bitcoin.h \
 		 stratifier.c stratifier.h connector.c connector.h uthash.h \
 		 utlist.h
@@ -16,6 +16,9 @@ ckpool_LDADD = libckpool.la @JANSSON_LIBS@
 ckpmsg_SOURCES = ckpmsg.c
 ckpmsg_LDADD = libckpool.la @JANSSON_LIBS@
 
+notifier_SOURCES = notifier.c
+notifier_LDADD = libckpool.la @JANSSON_LIBS@
+
 if WANT_CKDB
 bin_PROGRAMS += ckdb
 ckdb_SOURCES = ckdb.c klist.c ktree.c klist.h ktree.h

src/notifier.c

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2014 Con Kolivas
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
+ * any later version.  See COPYING for more details.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "libckpool.h"
+
+int main(int argc, char **argv)
+{
+	char *name = NULL, *socket_dir = NULL;
+	bool proxy = false;
+	int c, sockd;
+
+	while ((c = getopt(argc, argv, "n:s:p")) != -1) {
+		switch(c) {
+			case 'n':
+				name = strdup(optarg);
+				break;
+			case 's':
+				socket_dir = strdup(optarg);
+				break;
+			case 'p':
+				proxy = true;
+				break;
+		}
+	}
+	if (!socket_dir)
+		socket_dir = strdup("/tmp");
+	trail_slash(&socket_dir);
+	if (!name) {
+		if (proxy)
+			name = strdup("ckproxy");
+		else
+			name = strdup("ckpool");
+	}
+	realloc_strcat(&socket_dir, name);
+	dealloc(name);
+	trail_slash(&socket_dir);
+	realloc_strcat(&socket_dir, "stratifier");
+	sockd = open_unix_client(socket_dir);
+	if (sockd < 0) {
+		LOGERR("Failed to open socket: %s", socket_dir);
+		exit(1);
+	}
+	if (!send_unix_msg(sockd, "update")) {
+		LOGERR("Failed to send stratifier update msg");
+		exit(1);
+	}
+	LOGNOTICE("Notified stratifier of block update");
+	exit(0);
+}
+
+