diff --git a/src/oping.c b/src/oping.c
index 5f0940df20bb566c04bde4ffd2982719820bbb72..fc4cb5faeb5f9cdbd393188ca8596e8d2db5bc43 100644 (file)
--- a/src/oping.c
+++ b/src/oping.c
*
* 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 2 of the License, or
- * (at your option) any later version.
+ * the Free Software Foundation; only version 2 of the License is
+ * applicable.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
int req_sent;
int req_rcvd;
-
+
double latency_min;
double latency_max;
double latency_total;
double latency_total_square;
} ping_context_t;
-static double opt_interval = 1.0;
-static int opt_addrfamily = PING_DEF_AF;
-static int opt_count = -1;
+static double opt_interval = 1.0;
+static int opt_addrfamily = PING_DEF_AF;
+static char *opt_srcaddr = NULL;
+static char *opt_device = NULL;
+static char *opt_filename = NULL;
+static int opt_count = -1;
+static int opt_send_ttl = 64;
-void sigint_handler (int signal)
+static void sigint_handler (int signal)
{
+ /* Make compiler happy */
+ signal = 0;
/* Exit the loop */
opt_count = 0;
}
-ping_context_t *context_create (void)
+static ping_context_t *context_create (void)
{
ping_context_t *ret;
return (ret);
}
-void context_destroy (ping_context_t *context)
+static void context_destroy (ping_context_t *context)
{
free (context);
}
-void usage_exit (const char *name)
+static void usage_exit (const char *name, int status)
{
- fprintf (stderr, "Usage: %s [-46] [-c count] [-i interval] host [host [host ...]]\n",
+ int name_length;
+
+ name_length = (int) strlen (name);
+
+ fprintf (stderr, "Usage: %s [OPTIONS] "
+ "-f filename | host [host [host ...]]\n"
+
+ "\nAvailable options:\n"
+ " -4|-6 force the use of IPv4 or IPv6\n"
+ " -c count number of ICMP packets to send\n"
+ " -i interval interval with which to send ICMP packets\n"
+ " -t ttl time to live for each ICMP packet\n"
+ " -I srcaddr source address\n"
+ " -D device outgoing interface name\n"
+ " -f filename filename to read hosts from\n"
+
+ "\noping "PACKAGE_VERSION", http://verplant.org/liboping/\n"
+ "by Florian octo Forster <octo@verplant.org>\n"
+ "for contributions see `AUTHORS'\n",
name);
- exit (1);
+ exit (status);
}
-int read_options (int argc, char **argv)
+static int read_options (int argc, char **argv)
{
int optchar;
while (1)
{
- optchar = getopt (argc, argv, "46c:i:");
+ optchar = getopt (argc, argv, "46c:hi:I:t:f:D:");
if (optchar == -1)
break;
new_count = atoi (optarg);
if (new_count > 0)
opt_count = new_count;
+ else
+ fprintf(stderr, "Ignoring invalid count: %s\n",
+ optarg);
+ }
+ break;
+
+ case 'f':
+ {
+ if (opt_filename != NULL)
+ free (opt_filename);
+ opt_filename = strdup (optarg);
}
break;
{
double new_interval;
new_interval = atof (optarg);
- if (new_interval >= 0.2)
+ if (new_interval < 0.001)
+ fprintf (stderr, "Ignoring invalid interval: %s\n",
+ optarg);
+ else
opt_interval = new_interval;
}
break;
+ case 'I':
+ {
+ if (opt_srcaddr != NULL)
+ free (opt_srcaddr);
+ opt_srcaddr = strdup (optarg);
+ }
+ break;
+
+ case 'D':
+ opt_device = optarg;
+ break;
+ case 't':
+ {
+ int new_send_ttl;
+ new_send_ttl = atoi (optarg);
+ if ((new_send_ttl > 0) && (new_send_ttl < 256))
+ opt_send_ttl = new_send_ttl;
+ else
+ fprintf (stderr, "Ignoring invalid TTL argument: %s\n",
+ optarg);
+ break;
+ }
+
+ case 'h':
+ usage_exit (argv[0], 0);
+ break;
default:
- usage_exit (argv[0]);
+ usage_exit (argv[0], 1);
}
}
return (optind);
}
-void print_host (pingobj_iter_t *iter)
+static void print_host (pingobj_iter_t *iter)
{
- double latency;
- uint16_t sequence;
- size_t buffer_len;
+ double latency;
+ unsigned int sequence;
+ int recv_ttl;
+ size_t buffer_len;
+ size_t data_len;
ping_context_t *context;
-
+
+ latency = -1.0;
buffer_len = sizeof (latency);
ping_iterator_get_info (iter, PING_INFO_LATENCY,
&latency, &buffer_len);
+ sequence = 0;
buffer_len = sizeof (sequence);
ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
&sequence, &buffer_len);
+ recv_ttl = -1;
+ buffer_len = sizeof (recv_ttl);
+ ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
+ &recv_ttl, &buffer_len);
+
+ data_len = 0;
+ ping_iterator_get_info (iter, PING_INFO_DATA,
+ NULL, &data_len);
+
context = (ping_context_t *) ping_iterator_get_context (iter);
context->req_sent++;
if ((context->latency_min < 0.0) || (context->latency_min > latency))
context->latency_min = latency;
- printf ("echo reply from %s (%s): icmp_seq=%u time=%.2f ms\n",
+ printf ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i time=%.2f ms\n",
+ data_len,
context->host, context->addr,
- (unsigned int) sequence, latency);
+ sequence, recv_ttl, latency);
}
else
{
printf ("echo reply from %s (%s): icmp_seq=%u timeout\n",
context->host, context->addr,
- (unsigned int) sequence);
+ sequence);
}
}
-void time_normalize (struct timespec *ts)
+static void time_normalize (struct timespec *ts)
{
while (ts->tv_nsec < 0)
{
}
}
-void time_calc (struct timespec *ts_dest,
+static void time_calc (struct timespec *ts_dest,
const struct timespec *ts_int,
const struct timeval *tv_begin,
const struct timeval *tv_end)
int optind;
int i;
+ optind = read_options (argc, argv);
+
+ if ((optind >= argc) && (opt_filename == NULL)) {
+ usage_exit (argv[0], 1);
+ }
+
if (geteuid () != 0)
{
fprintf (stderr, "Need superuser privileges to open a RAW socket. Sorry.\n");
return (1);
}
- optind = read_options (argc, argv);
-
- if (optind >= argc)
- usage_exit (argv[0]);
-
if ((ping = ping_construct ()) == NULL)
{
fprintf (stderr, "ping_construct failed\n");
return (1);
}
+ if (ping_setopt (ping, PING_OPT_TTL, &opt_send_ttl) != 0)
+ {
+ fprintf (stderr, "Setting TTL to %i failed: %s\n",
+ opt_send_ttl, ping_get_error (ping));
+ }
+
{
double temp_sec;
double temp_nsec;
if (opt_addrfamily != PING_DEF_AF)
ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
+ if (opt_srcaddr != NULL)
+ {
+ if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
+ {
+ fprintf (stderr, "Setting source address failed: %s\n",
+ ping_get_error (ping));
+ }
+ }
+
+ if (opt_device != NULL)
+ {
+ if (ping_setopt (ping, PING_OPT_DEVICE, (void *) opt_device) != 0)
+ {
+ fprintf (stderr, "Setting device failed: %s\n",
+ ping_get_error (ping));
+ }
+ }
+
+ if (opt_filename != NULL)
+ {
+ FILE *infile;
+ char line[256];
+ char host[256];
+
+ if (strcmp (opt_filename, "-") == 0)
+ /* Open STDIN */
+ infile = fdopen(0, "r");
+ else
+ infile = fopen(opt_filename, "r");
+
+ if (infile == NULL)
+ {
+ fprintf (stderr, "Opening %s failed: %s\n",
+ (strcmp (opt_filename, "-") == 0)
+ ? "STDIN" : opt_filename,
+ strerror(errno));
+ return (1);
+ }
+
+ while (fgets(line, sizeof(line), infile))
+ {
+ /* Strip whitespace */
+ if (sscanf(line, "%s", host) != 1)
+ continue;
+
+ if ((host[0] == 0) || (host[0] == '#'))
+ continue;
+
+ if (ping_host_add(ping, host) < 0)
+ {
+ const char *errmsg = ping_get_error (ping);
+
+ fprintf (stderr, "Adding host `%s' failed: %s\n", host, errmsg);
+ continue;
+ }
+ }
+
+ fclose(infile);
+ }
+
for (i = optind; i < argc; i++)
{
- if (ping_host_add (ping, argv[i]) > 0)
+ if (ping_host_add (ping, argv[i]) < 0)
{
- fprintf (stderr, "ping_host_add (%s) failed\n", argv[i]);
+ const char *errmsg = ping_get_error (ping);
+
+ fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
continue;
}
}
+ /* Drop root privileges if we're setuid-root. */
+ setuid (getuid ());
+
+ i = 0;
for (iter = ping_iterator_get (ping);
iter != NULL;
iter = ping_iterator_next (iter))
buffer_size = sizeof (context->addr);
ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
+ buffer_size = 0;
+ ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
+
+ printf ("PING %s (%s) %zu bytes of data.\n",
+ context->host, context->addr, buffer_size);
+
ping_iterator_set_context (iter, (void *) context);
+
+ i++;
}
+ if (i == 0)
+ return (1);
+
memset (&sigint_action, '\0', sizeof (sigint_action));
sigint_action.sa_handler = sigint_handler;
if (sigaction (SIGINT, &sigint_action, NULL) < 0)
if (ping_send (ping) < 0)
{
- fprintf (stderr, "ping_send failed\n");
+ fprintf (stderr, "ping_send failed: %s\n",
+ ping_get_error (ping));
return (1);
}
num_total = (double) context->req_rcvd;
average = context->latency_total / num_total;
- deviation = sqrt ((context->latency_total_square / num_total) - (average * average));
+ deviation = sqrt (((num_total * context->latency_total_square) - (context->latency_total * context->latency_total))
+ / (num_total * (num_total - 1.0)));
printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n",
context->latency_min,
}
ping_iterator_set_context (iter, NULL);
- free (context);
+ context_destroy (context);
}
ping_destroy (ping);