LICENSE

@@ -1,13 +0,0 @@
- Copyright (c) 2012-2015 Matthieu Herrb <matthieu@herrb.eu>
- 
- Permission to use, copy, modify, and distribute this software for any
- purpose with or without fee is hereby granted, provided that the above
- copyright notice and this permission notice appear in all copies.
- 
- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

README.md

@@ -5,29 +5,7 @@ echoc is a small network test program that sends UDP packets to the
 echo service (it should be activated in [x]inetd on the target host).
 echoc displays the start/end date of loss of connectivity.
 
-Building
---------
-
-From git, run:
-
-```
-./autogen.sh
-make
-make install
-```
-
-From a source tarball, run:
-
-```
-./configure
-make
-make install
-```
-
-Licence
--------
-
-Echoc is distributed under the ISC license:
+It is distributed under the ISC license:
 
   Copyright (c) 2012-2015 Matthieu Herrb <matthieu@herrb.eu>
   

autogen.sh

@@ -1,13 +0,0 @@
-#! /bin/sh
-srcdir=`dirname "$0"`
-test -z "$srcdir" && srcdir=.
-
-ORIGDIR=`pwd`
-cd "$srcdir"
-
-autoreconf -v --install || exit 1
-cd "$ORIGDIR" || exit $?
-
-if test -z "$NOCONFIGURE"; then
-    exec "$srcdir"/configure "$@"
-fi

configure.ac

@@ -1,5 +1,5 @@
-AC_PREREQ([2.71])
-AC_INIT([echoc],[0.6.99],[https://gitlab.laas.fr/matthieu/echoc],[echoc])
+AC_PREREQ([2.65])
+AC_INIT([echoc], 0.4, [https://chiliproject.tetaneutral.net/projects/git-tetaneutral-net/repository/echoc], echoc)
 AM_INIT_AUTOMAKE([foreign dist-bzip2])
 AC_CONFIG_MACRO_DIR([m4])
 AC_PROG_CC
@@ -7,5 +7,4 @@ AC_PROG_CC
 AC_CHECK_HEADERS([bsd/stdlib.h])
 AC_SEARCH_LIBS(strtonum, [bsd])
 
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
+AC_OUTPUT([Makefile])

echoc.c

@@ -37,7 +37,6 @@
 
 int sock = -1;
 int verbose = 0;
-int aborting = 0;
 struct sockaddr *server;
 socklen_t serverlen;
 unsigned int seq = 0;
@@ -49,16 +48,11 @@ usage(void)
 	errx(2, "usage: echoc [-c nbr][-d][-i ms][-l len][-p port][-t ms][-v] server");
 }
 
-static void
-sigint_handler(int unused)
-{
-	aborting = 1;
-}
-
 static void
 send_packet(int unused)
 {
-       char *buf;
+	char *buf;
+
 	buf = malloc(len);
 	if (buf == NULL)
 		return;
@@ -89,7 +83,7 @@ main(int argc, char *argv[])
 	struct tm *tm;
 	struct pollfd pfd[1];
 	socklen_t addrlen;
-	long interval = 100;	/* default interval (ms) */
+	long interval = 100; 	/* default interval (ms) */
 	long timeout = 500;	/* default timeout (ms) */
 	int ch;
 	int nfds, received = 0;
@@ -167,22 +161,6 @@ main(int argc, char *argv[])
 	disconnected = 0;
 	memset(&client, 0, sizeof(client));
 
-	recvbuf = malloc(len);
-	if (recvbuf == NULL)
-		err(2, "malloc receive buffer");
-
-#ifdef IP_MTU_DISCOVER
-	/* set the DF flag ? */
-	if (nofragment)
-		ch = IP_PMTUDISC_DO;
-	else
-		ch = IP_PMTUDISC_DONT;
-	if (setsockopt(sock, IPPROTO_IP, IP_MTU_DISCOVER, &ch, sizeof(ch)) < 0)
-	       err(2, "setsockopt IP_MTU_DISCOVER");
-#endif
-	signal(SIGALRM, send_packet);
-	signal(SIGINT, sigint_handler);
-
 	/* timer values */
 	itv.it_interval.tv_usec = interval*1000;
 	itv.it_interval.tv_sec = 0;
@@ -191,14 +169,26 @@ main(int argc, char *argv[])
 	if (setitimer(ITIMER_REAL, &itv, NULL) == -1)
 		err(2, "setitimer");
 
-	gettimeofday(&last_ts, NULL);
-	tm = localtime((time_t *)&last_ts.tv_sec);
-	strftime(date, sizeof(date), "%F %T", tm);
-	printf("%s.%06ld: starting\n", date, last_ts.tv_usec);
+	signal(SIGALRM, send_packet);
 
-	while (!aborting) {
+	gettimeofday(&last_ts, NULL);
+
+	recvbuf = malloc(len);
+	if (recvbuf == NULL)
+		err(2, "malloc receive buffer");
+
+#ifdef IP_MTU_DISCOVER
+	/* set the DF flag ? */
+	if (nofragment)
+		ch = IP_PMTUDISC_DO;
+	else 
+		ch = IP_PMTUDISC_DONT;
+	if (setsockopt(sock, IPPROTO_IP, IP_MTU_DISCOVER, &ch, sizeof(ch)) < 0)
+		err(2, "setsockopt IP_MTU_DISCOVER");
+#endif
+	while (1) {
 		/* poll() loop to handle interruptions by SIGALRM */
-		while (!aborting) {
+		while (1) {
 			pfd[0].fd = sock;
 			pfd[0].events = POLLIN;
 			nfds = poll(pfd, 1, timeout);
@@ -214,8 +204,6 @@ main(int argc, char *argv[])
 				break;
 			}
 		}
-		if (aborting)
-			break;
 		if ((nfds == 0)) {
 			if (verbose)
 				printf("%d packet(s) dropped in %ld.%06ld s\n",
@@ -240,7 +228,7 @@ main(int argc, char *argv[])
 		if (verbose && (serverlen != addrlen ||
 			memcmp(&client, server, addrlen) != 0)) {
 			if ((error = getnameinfo((struct sockaddr *)&client,
-				    addrlen, name, sizeof(name),
+				addrlen, name, sizeof(name),
 				    NULL, 0, NI_DGRAM)) != 0) {
 				warnx("%s", gai_strerror(error));
 			} else {
@@ -271,12 +259,6 @@ main(int argc, char *argv[])
 			}
 		}
 	}
-	if (aborting) {
-		gettimeofday(&now, NULL);
-		tm = localtime((time_t *)&now.tv_sec);
-		strftime(date, sizeof(date), "%F %T", tm);
-		printf("%s.%06ld: aborting\n", date, now.tv_usec);
-	}
 	close(sock);
 	exit(0);
 }