diff --git a/src/oping.c b/src/oping.c
index 23d998609774c7b0945afa94f06cf2a1903caa94..3a04fcd1ecfe7a1529e7cff44dca9b161a1083bf 100644 (file)
--- a/src/oping.c
+++ b/src/oping.c
/**
* Object oriented C module to send ICMP and ICMPv6 `echo's.
- * Copyright (C) 2006 Florian octo Forster <octo at verplant.org>
+ * Copyright (C) 2006-2014 Florian octo Forster <ff at octo.it>
*
* 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
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
+# include <stdint.h>
+# include <inttypes.h>
# include <errno.h>
# include <assert.h>
#else
# error "You don't have the standard C99 header files installed"
#endif /* STDC_HEADERS */
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
#if HAVE_MATH_H
# include <math.h>
#endif
# endif
#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#if HAVE_NETINET_IP_H
+# include <netinet/ip.h>
+#endif
+
#if HAVE_NETDB_H
# include <netdb.h> /* NI_MAXHOST */
#endif
# include <signal.h>
#endif
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#include <locale.h>
+#include <langinfo.h>
+
+#if USE_NCURSES
+# define NCURSES_OPAQUE 1
+/* http://newsgroups.derkeiler.com/Archive/Rec/rec.games.roguelike.development/2010-09/msg00050.html */
+# define _X_OPEN_SOURCE_EXTENDED
+
+# if HAVE_NCURSESW_NCURSES_H
+# include <ncursesw/ncurses.h>
+# elif HAVE_NCURSES_H
+# include <ncurses.h>
+# endif
+
+# define OPING_GREEN 1
+# define OPING_YELLOW 2
+# define OPING_RED 3
+# define OPING_GREEN_HIST 4
+# define OPING_YELLOW_HIST 5
+# define OPING_RED_HIST 6
+
+static char const * const hist_symbols_utf8[] = {
+ "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" };
+static size_t const hist_symbols_utf8_num = sizeof (hist_symbols_utf8)
+ / sizeof (hist_symbols_utf8[0]);
+
+/* scancodes for 6 levels of horizontal bars, ncurses-specific */
+/* those are not the usual constants because those are not constant */
+static int const hist_symbols_acs[] = {
+ 115, /* ACS_S9 "⎽" */
+ 114, /* ACS_S7 "⎼" */
+ 113, /* ACS_S5 "─" */
+ 112, /* ACS_S3 "⎻" */
+ 111 /* ACS_S1 "⎺" */
+};
+static size_t const hist_symbols_acs_num = sizeof (hist_symbols_acs)
+ / sizeof (hist_symbols_acs[0]);
+
+/* use different colors without a background for scancodes */
+static int const hist_colors_utf8[] = {
+ OPING_GREEN_HIST, OPING_YELLOW_HIST, OPING_RED_HIST };
+static int const hist_colors_acs[] = {
+ OPING_GREEN, OPING_YELLOW, OPING_RED };
+/* assuming that both arrays are the same size */
+static size_t const hist_colors_num = sizeof (hist_colors_utf8)
+ / sizeof (hist_colors_utf8[0]);
+#endif
+
#include "oping.h"
+#ifndef _POSIX_SAVED_IDS
+# define _POSIX_SAVED_IDS 0
+#endif
+
+#ifndef IPTOS_MINCOST
+# define IPTOS_MINCOST 0x02
+#endif
+
+/* Remove GNU specific __attribute__ settings when using another compiler */
+#if !__GNUC__
+# define __attribute__(x) /**/
+#endif
+
typedef struct ping_context
{
char host[NI_MAXHOST];
char addr[NI_MAXHOST];
+ int index;
int req_sent;
int req_rcvd;
-
+
double latency_min;
double latency_max;
double latency_total;
double latency_total_square;
+
+/* 1000 + one "infinity" bucket. */
+#define OPING_HISTOGRAM_BUCKETS 1001
+ uint32_t *latency_histogram;
+ size_t latency_histogram_size;
+
+#if USE_NCURSES
+ WINDOW *window;
+#endif
} ping_context_t;
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;
+static uint8_t opt_send_qos = 0;
+#define OPING_DEFAULT_PERCENTILE 95.0
+static double opt_percentile = -1.0;
+static double opt_exit_status_threshold = 1.0;
+#if USE_NCURSES
+static int opt_utf8 = 0;
+#endif
+
+static int host_num = 0;
+
+#if USE_NCURSES
+static WINDOW *main_win = NULL;
+#endif
-void sigint_handler (int signal)
+static void sigint_handler (int signal) /* {{{ */
{
+ /* Make compiler happy */
+ signal = 0;
/* Exit the loop */
opt_count = 0;
-}
+} /* }}} void sigint_handler */
-ping_context_t *context_create (void)
+static ping_context_t *context_create (void) /* {{{ */
{
ping_context_t *ret;
ret->latency_total = 0.0;
ret->latency_total_square = 0.0;
+ ret->latency_histogram_size = (size_t) OPING_HISTOGRAM_BUCKETS;
+ ret->latency_histogram = calloc (ret->latency_histogram_size,
+ sizeof (*ret->latency_histogram));
+
+#if USE_NCURSES
+ ret->window = NULL;
+#endif
+
return (ret);
-}
+} /* }}} ping_context_t *context_create */
-void context_destroy (ping_context_t *context)
+static void context_destroy (ping_context_t *context) /* {{{ */
{
+ if (context == NULL)
+ return;
+
+#if USE_NCURSES
+ if (context->window != NULL)
+ {
+ delwin (context->window);
+ context->window = NULL;
+ }
+#endif
+
+ free (context->latency_histogram);
+ context->latency_histogram = NULL;
+
free (context);
-}
+} /* }}} void context_destroy */
+
+static double context_get_average (ping_context_t *ctx) /* {{{ */
+{
+ double num_total;
+
+ if (ctx == NULL)
+ return (-1.0);
+
+ if (ctx->req_rcvd < 1)
+ return (-0.0);
+
+ num_total = (double) ctx->req_rcvd;
+ return (ctx->latency_total / num_total);
+} /* }}} double context_get_average */
+
+static double context_get_percentile (ping_context_t *ctx, /* {{{ */
+ double percentile)
+{
+ double threshold = percentile / 100.0;
+ uint32_t accumulated[ctx->latency_histogram_size];
+ double ratios[ctx->latency_histogram_size];
+ double index_to_ms_factor;
+ uint32_t num;
+ size_t i;
+
+ if (ctx->latency_histogram == NULL)
+ return (NAN);
+
+ accumulated[0] = ctx->latency_histogram[0];
+ for (i = 1; i < ctx->latency_histogram_size; i++)
+ accumulated[i] = accumulated[i - 1]
+ + ctx->latency_histogram[i];
+ num = accumulated[ctx->latency_histogram_size - 1];
+
+ for (i = 0; i < ctx->latency_histogram_size; i++)
+ {
+ ratios[i] = ((double) accumulated[i]) / ((double) num);
+ if (ratios[i] >= threshold)
+ break;
+ }
+
+ if (i >= ctx->latency_histogram_size)
+ return (NAN);
+ else if (i == (ctx->latency_histogram_size - 1))
+ return (INFINITY);
+
+ index_to_ms_factor = (1000.0 * opt_interval) / (ctx->latency_histogram_size - 1);
+
+ /* Multiply with i+1, because we're interested in the _upper_ bound of
+ * each bucket. */
+ return (index_to_ms_factor * ((double) (i + 1)));
+} /* }}} double context_get_percentile */
+
+static double context_get_stddev (ping_context_t *ctx) /* {{{ */
+{
+ double num_total;
+
+ if (ctx == NULL)
+ return (-1.0);
+
+ if (ctx->req_rcvd < 1)
+ return (-0.0);
+ else if (ctx->req_rcvd < 2)
+ return (0.0);
+
+ num_total = (double) ctx->req_rcvd;
+ return (sqrt (((num_total * ctx->latency_total_square)
+ - (ctx->latency_total * ctx->latency_total))
+ / (num_total * (num_total - 1.0))));
+} /* }}} double context_get_stddev */
+
+static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
+{
+ if (ctx == NULL)
+ return (-1.0);
+
+ if (ctx->req_sent < 1)
+ return (0.0);
+
+ return (100.0 * (ctx->req_sent - ctx->req_rcvd)
+ / ((double) ctx->req_sent));
+} /* }}} double context_get_packet_loss */
+
+static int ping_initialize_contexts (pingobj_t *ping) /* {{{ */
+{
+ pingobj_iter_t *iter;
+ int index;
+
+ if (ping == NULL)
+ return (EINVAL);
-void usage_exit (const char *name)
+ index = 0;
+ for (iter = ping_iterator_get (ping);
+ iter != NULL;
+ iter = ping_iterator_next (iter))
+ {
+ ping_context_t *context;
+ size_t buffer_size;
+
+ context = context_create ();
+ context->index = index;
+
+ buffer_size = sizeof (context->host);
+ ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
+
+ buffer_size = sizeof (context->addr);
+ ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
+
+ ping_iterator_set_context (iter, (void *) context);
+
+ index++;
+ }
+
+ return (0);
+} /* }}} int ping_initialize_contexts */
+
+static void usage_exit (const char *name, int status) /* {{{ */
{
- fprintf (stderr, "Usage: %s [-46] [-c count] [-i interval] host [host [host ...]]\n",
+ 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"
+ " -Q qos Quality of Service (QoS) of outgoing packets\n"
+ " Use \"-Q help\" for a list of valid options.\n"
+ " -I srcaddr source address\n"
+ " -D device outgoing interface name\n"
+ " -f filename filename to read hosts from\n"
+#if USE_NCURSES
+ " -u / -U force / disable UTF-8 output\n"
+#endif
+ " -P percent Report the n'th percentile of latency\n"
+ " -Z percent Exit with non-zero exit status if more than this percentage of\n"
+ " probes timed out. (default: never)\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);
+} /* }}} void usage_exit */
+
+__attribute__((noreturn))
+static void usage_qos_exit (const char *arg, int status) /* {{{ */
+{
+ if (arg != 0)
+ fprintf (stderr, "Invalid QoS argument: \"%s\"\n\n", arg);
+
+ fprintf (stderr, "Valid QoS arguments (option \"-Q\") are:\n"
+ "\n"
+ " Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
+ "\n"
+ " be Best Effort (BE, default PHB).\n"
+ " ef Expedited Forwarding (EF) PHB group (RFC 3246).\n"
+ " (low delay, low loss, low jitter)\n"
+ " va Voice Admit (VA) DSCP (RFC 5865).\n"
+ " (capacity-admitted traffic)\n"
+ " af[1-4][1-3] Assured Forwarding (AF) PHB group (RFC 2597).\n"
+ " For example: \"af12\" (class 1, precedence 2)\n"
+ " cs[0-7] Class Selector (CS) PHB group (RFC 2474).\n"
+ " For example: \"cs1\" (priority traffic)\n"
+ "\n"
+ " Type of Service (IPv4, RFC 1349, obsolete)\n"
+ "\n"
+ " lowdelay (%#04x) minimize delay\n"
+ " throughput (%#04x) maximize throughput\n"
+ " reliability (%#04x) maximize reliability\n"
+ " mincost (%#04x) minimize monetary cost\n"
+ "\n"
+ " Specify manually\n"
+ "\n"
+ " 0x00 - 0xff Hexadecimal numeric specification.\n"
+ " 0 - 255 Decimal numeric specification.\n"
+ "\n",
+ (unsigned int) IPTOS_LOWDELAY,
+ (unsigned int) IPTOS_THROUGHPUT,
+ (unsigned int) IPTOS_RELIABILITY,
+ (unsigned int) IPTOS_MINCOST);
+
+ exit (status);
+} /* }}} void usage_qos_exit */
+
+static int set_opt_send_qos (const char *opt) /* {{{ */
+{
+ if (opt == NULL)
+ return (EINVAL);
+
+ if (strcasecmp ("help", opt) == 0)
+ usage_qos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
+ /* DiffServ (RFC 2474): */
+ /* - Best effort (BE) */
+ else if (strcasecmp ("be", opt) == 0)
+ opt_send_qos = 0;
+ /* - Expedited Forwarding (EF, RFC 3246) */
+ else if (strcasecmp ("ef", opt) == 0)
+ opt_send_qos = 0xB8; /* == 0x2E << 2 */
+ /* - Voice Admit (VA, RFC 5865) */
+ else if (strcasecmp ("va", opt) == 0)
+ opt_send_qos = 0xB0; /* == 0x2D << 2 */
+ /* - Assured Forwarding (AF, RFC 2597) */
+ else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
+ && (strlen (opt) == 4))
+ {
+ uint8_t dscp;
+ uint8_t class = 0;
+ uint8_t prec = 0;
+
+ /* There are four classes, AF1x, AF2x, AF3x, and AF4x. */
+ if (opt[2] == '1')
+ class = 1;
+ else if (opt[2] == '2')
+ class = 2;
+ else if (opt[2] == '3')
+ class = 3;
+ else if (opt[2] == '4')
+ class = 4;
+ else
+ usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
+
+ /* In each class, there are three precedences, AFx1, AFx2, and AFx3 */
+ if (opt[3] == '1')
+ prec = 1;
+ else if (opt[3] == '2')
+ prec = 2;
+ else if (opt[3] == '3')
+ prec = 3;
+ else
+ usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_SUCCESS);
+
+ dscp = (8 * class) + (2 * prec);
+ /* The lower two bits are used for Explicit Congestion Notification (ECN) */
+ opt_send_qos = dscp << 2;
+ }
+ /* - Class Selector (CS) */
+ else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
+ && (strlen (opt) == 3))
+ {
+ uint8_t class;
+
+ if ((opt[2] < '0') || (opt[2] > '7'))
+ usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
+
+ /* Not exactly legal by the C standard, but I don't know of any
+ * system not supporting this hack. */
+ class = ((uint8_t) opt[2]) - ((uint8_t) '0');
+ opt_send_qos = class << 5;
+ }
+ /* Type of Service (RFC 1349) */
+ else if (strcasecmp ("lowdelay", opt) == 0)
+ opt_send_qos = IPTOS_LOWDELAY;
+ else if (strcasecmp ("throughput", opt) == 0)
+ opt_send_qos = IPTOS_THROUGHPUT;
+ else if (strcasecmp ("reliability", opt) == 0)
+ opt_send_qos = IPTOS_RELIABILITY;
+ else if (strcasecmp ("mincost", opt) == 0)
+ opt_send_qos = IPTOS_MINCOST;
+ /* Numeric value */
+ else
+ {
+ unsigned long value;
+ char *endptr;
+
+ errno = 0;
+ endptr = NULL;
+ value = strtoul (opt, &endptr, /* base = */ 0);
+ if ((errno != 0) || (endptr == opt)
+ || (endptr == NULL) || (*endptr != 0)
+ || (value > 0xff))
+ usage_qos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
+
+ opt_send_qos = (uint8_t) value;
+ }
+
+ return (0);
+} /* }}} int set_opt_send_qos */
+
+static char *format_qos (uint8_t qos, char *buffer, size_t buffer_size) /* {{{ */
+{
+ uint8_t dscp;
+ uint8_t ecn;
+ char *dscp_str;
+ char *ecn_str;
+
+ dscp = qos >> 2;
+ ecn = qos & 0x03;
+
+ switch (dscp)
+ {
+ case 0x00: dscp_str = "be"; break;
+ case 0x2e: dscp_str = "ef"; break;
+ case 0x2d: dscp_str = "va"; break;
+ case 0x0a: dscp_str = "af11"; break;
+ case 0x0c: dscp_str = "af12"; break;
+ case 0x0e: dscp_str = "af13"; break;
+ case 0x12: dscp_str = "af21"; break;
+ case 0x14: dscp_str = "af22"; break;
+ case 0x16: dscp_str = "af23"; break;
+ case 0x1a: dscp_str = "af31"; break;
+ case 0x1c: dscp_str = "af32"; break;
+ case 0x1e: dscp_str = "af33"; break;
+ case 0x22: dscp_str = "af41"; break;
+ case 0x24: dscp_str = "af42"; break;
+ case 0x26: dscp_str = "af43"; break;
+ case 0x08: dscp_str = "cs1"; break;
+ case 0x10: dscp_str = "cs2"; break;
+ case 0x18: dscp_str = "cs3"; break;
+ case 0x20: dscp_str = "cs4"; break;
+ case 0x28: dscp_str = "cs5"; break;
+ case 0x30: dscp_str = "cs6"; break;
+ case 0x38: dscp_str = "cs7"; break;
+ default: dscp_str = NULL;
+ }
+
+ switch (ecn)
+ {
+ case 0x01: ecn_str = ",ecn(1)"; break;
+ case 0x02: ecn_str = ",ecn(0)"; break;
+ case 0x03: ecn_str = ",ce"; break;
+ default: ecn_str = "";
+ }
+
+ if (dscp_str == NULL)
+ snprintf (buffer, buffer_size, "0x%02x%s", dscp, ecn_str);
+ else
+ snprintf (buffer, buffer_size, "%s%s", dscp_str, ecn_str);
+ buffer[buffer_size - 1] = 0;
-int read_options (int argc, char **argv)
+ return (buffer);
+} /* }}} char *format_qos */
+
+static int read_options (int argc, char **argv) /* {{{ */
{
int optchar;
while (1)
{
- optchar = getopt (argc, argv, "46c:hi:I:");
+ optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:P:"
+#if USE_NCURSES
+ "uU"
+#endif
+ );
if (optchar == -1)
break;
int new_count;
new_count = atoi (optarg);
if (new_count > 0)
+ {
opt_count = new_count;
+
+ if ((opt_percentile < 0.0) && (opt_count < 20))
+ opt_percentile = 100.0 * (opt_count - 1) / opt_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)
}
break;
- case 'h':
- default:
- usage_exit (argv[0]);
- }
- }
+ case 'D':
+ opt_device = optarg;
+ break;
- return (optind);
-}
+ 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;
+ }
-void print_host (pingobj_iter_t *iter)
-{
- double latency;
- unsigned int sequence;
- size_t buffer_len;
- size_t data_len;
- ping_context_t *context;
-
- buffer_len = sizeof (latency);
- ping_iterator_get_info (iter, PING_INFO_LATENCY,
- &latency, &buffer_len);
+ case 'Q':
+ set_opt_send_qos (optarg);
+ break;
- buffer_len = sizeof (sequence);
- ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
- &sequence, &buffer_len);
+ case 'P':
+ {
+ double new_percentile;
+ new_percentile = atof (optarg);
+ if (isnan (new_percentile)
+ || (new_percentile < 0.1)
+ || (new_percentile > 100.0))
+ fprintf (stderr, "Ignoring invalid percentile: %s\n",
+ optarg);
+ else
+ opt_percentile = new_percentile;
+ }
+ break;
- data_len = 0;
- ping_iterator_get_info (iter, PING_INFO_DATA,
- NULL, &data_len);
+#if USE_NCURSES
+ case 'u':
+ opt_utf8 = 2;
+ break;
+ case 'U':
+ opt_utf8 = 1;
+ break;
+#endif
- context = (ping_context_t *) ping_iterator_get_context (iter);
+ case 'Z':
+ {
+ char *endptr = NULL;
+ double tmp;
- context->req_sent++;
- if (latency > 0.0)
- {
- context->req_rcvd++;
- context->latency_total += latency;
- context->latency_total_square += (latency * latency);
+ errno = 0;
+ tmp = strtod (optarg, &endptr);
+ if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0))
+ {
+ fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg);
+ fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n");
+ }
+ else
+ opt_exit_status_threshold = tmp / 100.0;
- if ((context->latency_max < 0.0) || (context->latency_max < latency))
- context->latency_max = latency;
- if ((context->latency_min < 0.0) || (context->latency_min > latency))
- context->latency_min = latency;
+ break;
+ }
- printf ("%u bytes from %s (%s): icmp_seq=%u time=%.2f ms\n",
- (unsigned int) data_len,
- context->host, context->addr,
- (unsigned int) sequence, latency);
- }
- else
- {
- printf ("echo reply from %s (%s): icmp_seq=%u timeout\n",
- context->host, context->addr,
- (unsigned int) sequence);
+ case 'h':
+ usage_exit (argv[0], 0);
+ break;
+ default:
+ usage_exit (argv[0], 1);
+ }
}
-}
-void time_normalize (struct timespec *ts)
+ if (opt_percentile <= 0.0)
+ opt_percentile = OPING_DEFAULT_PERCENTILE;
+
+ return (optind);
+} /* }}} read_options */
+
+static void time_normalize (struct timespec *ts) /* {{{ */
{
while (ts->tv_nsec < 0)
{
ts->tv_sec += 1;
ts->tv_nsec -= 1000000000;
}
-}
+} /* }}} void time_normalize */
-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)
ts_dest->tv_sec = ts_dest->tv_sec - tv_end->tv_sec;
ts_dest->tv_nsec = ts_dest->tv_nsec - (tv_end->tv_usec * 1000);
time_normalize (ts_dest);
-}
+} /* }}} void time_calc */
-int main (int argc, char **argv)
+#if USE_NCURSES
+static _Bool has_utf8() /* {{{ */
{
- pingobj_t *ping;
- pingobj_iter_t *iter;
+# if HAVE_NCURSESW_NCURSES_H
+ if (!opt_utf8)
+ {
+ /* Automatically determine */
+ if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
+ opt_utf8 = 2;
+ else
+ opt_utf8 = 1;
+ }
+ return ((_Bool) (opt_utf8 - 1));
+# else
+ return (0);
+# endif
+} /* }}} _Bool has_utf8 */
- struct sigaction sigint_action;
+static int update_prettyping_graph (ping_context_t *ctx, /* {{{ */
+ double latency, unsigned int sequence)
+{
+ int color = OPING_RED;
+ char const *symbol = "!";
+ int symbolc = '!';
- struct timeval tv_begin;
- struct timeval tv_end;
- struct timespec ts_wait;
- struct timespec ts_int;
+ int x_max;
+ int x_pos;
- int optind;
- int i;
+ x_max = getmaxx (ctx->window);
+ x_pos = ((sequence - 1) % (x_max - 4)) + 2;
- optind = read_options (argc, argv);
+ if (latency >= 0.0)
+ {
+ double ratio;
- if (optind >= argc)
- usage_exit (argv[0]);
+ size_t symbols_num = hist_symbols_acs_num;
+ size_t colors_num = 1;
- if (geteuid () != 0)
- {
- fprintf (stderr, "Need superuser privileges to open a RAW socket. Sorry.\n");
- return (1);
- }
+ size_t index_symbols;
+ size_t index_colors;
+ size_t intensity;
- if ((ping = ping_construct ()) == NULL)
- {
- fprintf (stderr, "ping_construct failed\n");
- return (1);
- }
+ /* latency is in milliseconds, opt_interval is in seconds. */
+ ratio = (latency * 0.001) / opt_interval;
+ if (ratio > 1) {
+ ratio = 1.0;
+ }
- {
- double temp_sec;
- double temp_nsec;
+ if (has_utf8 ())
+ symbols_num = hist_symbols_utf8_num;
- temp_nsec = modf (opt_interval, &temp_sec);
- ts_int.tv_sec = (time_t) temp_sec;
- ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
+ if (has_colors () == TRUE)
+ colors_num = hist_colors_num;
- /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
- }
+ intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
+ if (intensity >= (symbols_num * colors_num))
+ intensity = (symbols_num * colors_num) - 1;
- if (opt_addrfamily != PING_DEF_AF)
- ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
+ index_symbols = intensity % symbols_num;
+ assert (index_symbols < symbols_num);
- if (opt_srcaddr != NULL)
- {
- if (ping_setopt (ping, PING_OPT_SOURCE, (void *) opt_srcaddr) != 0)
+ index_colors = intensity / symbols_num;
+ assert (index_colors < colors_num);
+
+ if (has_utf8())
{
- fprintf (stderr, "Setting source address failed: %s\n",
- ping_get_error (ping));
+ color = hist_colors_utf8[index_colors];
+ symbol = hist_symbols_utf8[index_symbols];
}
- }
-
- for (i = optind; i < argc; i++)
- {
- if (ping_host_add (ping, argv[i]) < 0)
+ else
{
- const char *errmsg = ping_get_error (ping);
-
- fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
- continue;
+ color = hist_colors_acs[index_colors];
+ symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
}
}
+ else /* if (!(latency >= 0.0)) */
+ wattron (ctx->window, A_BOLD);
- i = 0;
- for (iter = ping_iterator_get (ping);
- iter != NULL;
- iter = ping_iterator_next (iter))
- {
- ping_context_t *context;
- size_t buffer_size;
+ if (has_colors () == TRUE)
+ wattron (ctx->window, COLOR_PAIR(color));
- context = context_create ();
+ if (has_utf8())
+ mvwprintw (ctx->window, /* y = */ 3, /* x = */ x_pos, symbol);
+ else
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ x_pos, symbolc);
- buffer_size = sizeof (context->host);
- ping_iterator_get_info (iter, PING_INFO_HOSTNAME, context->host, &buffer_size);
+ if (has_colors () == TRUE)
+ wattroff (ctx->window, COLOR_PAIR(color));
- buffer_size = sizeof (context->addr);
- ping_iterator_get_info (iter, PING_INFO_ADDRESS, context->addr, &buffer_size);
+ /* Use negation here to handle NaN correctly. */
+ if (!(latency >= 0.0))
+ wattroff (ctx->window, A_BOLD);
- buffer_size = 0;
- ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
+ wprintw (ctx->window, " ");
+ return (0);
+} /* }}} int update_prettyping_graph */
- printf ("PING %s (%s) %u bytes of data.\n",
- context->host, context->addr, (unsigned int) buffer_size);
+static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
+{
+ double latency = -1.0;
+ size_t buffer_len = sizeof (latency);
- ping_iterator_set_context (iter, (void *) context);
+ ping_iterator_get_info (iter, PING_INFO_LATENCY,
+ &latency, &buffer_len);
- i++;
- }
+ unsigned int sequence = 0;
+ buffer_len = sizeof (sequence);
+ ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
+ &sequence, &buffer_len);
- 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 ((ctx == NULL) || (ctx->window == NULL))
+ return (EINVAL);
+
+ /* werase (ctx->window); */
+
+ box (ctx->window, 0, 0);
+ wattron (ctx->window, A_BOLD);
+ mvwprintw (ctx->window, /* y = */ 0, /* x = */ 5,
+ " %s ", ctx->host);
+ wattroff (ctx->window, A_BOLD);
+ wprintw (ctx->window, "ping statistics ");
+ mvwprintw (ctx->window, /* y = */ 1, /* x = */ 2,
+ "%i packets transmitted, %i received, %.2f%% packet "
+ "loss, time %.1fms",
+ ctx->req_sent, ctx->req_rcvd,
+ context_get_packet_loss (ctx),
+ ctx->latency_total);
+ if (ctx->req_rcvd != 0)
{
- perror ("sigaction");
- return (1);
+ double average;
+ double deviation;
+ double percentile;
+
+ average = context_get_average (ctx);
+ deviation = context_get_stddev (ctx);
+ percentile = context_get_percentile (ctx, opt_percentile);
+
+ mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
+ "rtt min/avg/%.0f%%/max/sdev = "
+ "%.3f/%.3f/%.0f/%.3f/%.3f ms\n",
+ opt_percentile,
+ ctx->latency_min,
+ average,
+ percentile,
+ ctx->latency_max,
+ deviation);
}
- while (opt_count != 0)
- {
- int status;
+ update_prettyping_graph (ctx, latency, sequence);
- if (gettimeofday (&tv_begin, NULL) < 0)
- {
- perror ("gettimeofday");
- return (1);
- }
+ wrefresh (ctx->window);
- if (ping_send (ping) < 0)
- {
- fprintf (stderr, "ping_send failed\n");
- return (1);
- }
+ return (0);
+} /* }}} int update_stats_from_context */
- for (iter = ping_iterator_get (ping);
- iter != NULL;
- iter = ping_iterator_next (iter))
+static int on_resize (pingobj_t *ping) /* {{{ */
+{
+ pingobj_iter_t *iter;
+ int width = 0;
+ int height = 0;
+ int main_win_height;
+
+ getmaxyx (stdscr, height, width);
+ if ((height < 1) || (width < 1))
+ return (EINVAL);
+
+ main_win_height = height - (5 * host_num);
+ wresize (main_win, main_win_height, /* width = */ width);
+ /* Allow scrolling */
+ scrollok (main_win, TRUE);
+ /* wsetscrreg (main_win, 0, main_win_height - 1); */
+ /* Allow hardware accelerated scrolling. */
+ idlok (main_win, TRUE);
+ wrefresh (main_win);
+
+ for (iter = ping_iterator_get (ping);
+ iter != NULL;
+ iter = ping_iterator_next (iter))
+ {
+ ping_context_t *context;
+
+ context = ping_iterator_get_context (iter);
+ if (context == NULL)
+ continue;
+
+ if (context->window != NULL)
{
- print_host (iter);
+ delwin (context->window);
+ context->window = NULL;
}
- fflush (stdout);
+ context->window = newwin (/* height = */ 5,
+ /* width = */ width,
+ /* y = */ main_win_height + (5 * context->index),
+ /* x = */ 0);
+ }
- /* Don't sleep in the last iteration */
- if (opt_count == 1)
+ return (0);
+} /* }}} */
+
+static int check_resize (pingobj_t *ping) /* {{{ */
+{
+ int need_resize = 0;
+
+ while (42)
+ {
+ int key = wgetch (stdscr);
+ if (key == ERR)
break;
+ else if (key == KEY_RESIZE)
+ need_resize = 1;
+ }
- if (gettimeofday (&tv_end, NULL) < 0)
+ if (need_resize)
+ return (on_resize (ping));
+ else
+ return (0);
+} /* }}} int check_resize */
+
+static int pre_loop_hook (pingobj_t *ping) /* {{{ */
+{
+ pingobj_iter_t *iter;
+ int width = 0;
+ int height = 0;
+ int main_win_height;
+
+ initscr ();
+ cbreak ();
+ noecho ();
+ nodelay (stdscr, TRUE);
+
+ getmaxyx (stdscr, height, width);
+ if ((height < 1) || (width < 1))
+ return (EINVAL);
+
+ if (has_colors () == TRUE)
+ {
+ start_color ();
+ init_pair (OPING_GREEN, COLOR_GREEN, /* default = */ 0);
+ init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
+ init_pair (OPING_RED, COLOR_RED, /* default = */ 0);
+ init_pair (OPING_GREEN_HIST, COLOR_GREEN, COLOR_BLACK);
+ init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
+ init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW);
+ }
+
+ main_win_height = height - (5 * host_num);
+ main_win = newwin (/* height = */ main_win_height,
+ /* width = */ width,
+ /* y = */ 0, /* x = */ 0);
+ /* Allow scrolling */
+ scrollok (main_win, TRUE);
+ /* wsetscrreg (main_win, 0, main_win_height - 1); */
+ /* Allow hardware accelerated scrolling. */
+ idlok (main_win, TRUE);
+ wmove (main_win, /* y = */ main_win_height - 1, /* x = */ 0);
+ wrefresh (main_win);
+
+ for (iter = ping_iterator_get (ping);
+ iter != NULL;
+ iter = ping_iterator_next (iter))
+ {
+ ping_context_t *context;
+
+ context = ping_iterator_get_context (iter);
+ if (context == NULL)
+ continue;
+
+ if (context->window != NULL)
{
- perror ("gettimeofday");
- return (1);
+ delwin (context->window);
+ context->window = NULL;
}
+ context->window = newwin (/* height = */ 5,
+ /* width = */ width,
+ /* y = */ main_win_height + (5 * context->index),
+ /* x = */ 0);
+ }
- time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
- /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
- while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
+ /* Don't know what good this does exactly, but without this code
+ * "check_resize" will be called right after startup and *somehow*
+ * this leads to display errors. If we purge all initial characters
+ * here, the problem goes away. "wgetch" is non-blocking due to
+ * "nodelay" (see above). */
+ while (wgetch (stdscr) != ERR)
+ {
+ /* eat up characters */;
+ }
+
+ return (0);
+} /* }}} int pre_loop_hook */
+
+static int pre_sleep_hook (pingobj_t *ping) /* {{{ */
+{
+ return (check_resize (ping));
+} /* }}} int pre_sleep_hook */
+
+static int post_sleep_hook (pingobj_t *ping) /* {{{ */
+{
+ return (check_resize (ping));
+} /* }}} int pre_sleep_hook */
+#else /* if !USE_NCURSES */
+static int pre_loop_hook (pingobj_t *ping) /* {{{ */
+{
+ pingobj_iter_t *iter;
+
+ for (iter = ping_iterator_get (ping);
+ iter != NULL;
+ iter = ping_iterator_next (iter))
+ {
+ ping_context_t *ctx;
+ size_t buffer_size;
+
+ ctx = ping_iterator_get_context (iter);
+ if (ctx == NULL)
+ continue;
+
+ buffer_size = 0;
+ ping_iterator_get_info (iter, PING_INFO_DATA, NULL, &buffer_size);
+
+ printf ("PING %s (%s) %zu bytes of data.\n",
+ ctx->host, ctx->addr, buffer_size);
+ }
+
+ return (0);
+} /* }}} int pre_loop_hook */
+
+static int pre_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
+{
+ fflush (stdout);
+
+ return (0);
+} /* }}} int pre_sleep_hook */
+
+static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
+{
+ return (0);
+} /* }}} int post_sleep_hook */
+#endif
+
+static void update_context (ping_context_t *context, double latency) /* {{{ */
+{
+ size_t bucket;
+
+ context->req_rcvd++;
+ context->latency_total += latency;
+ context->latency_total_square += (latency * latency);
+
+ if ((context->latency_max < 0.0) || (context->latency_max < latency))
+ context->latency_max = latency;
+ if ((context->latency_min < 0.0) || (context->latency_min > latency))
+ context->latency_min = latency;
+
+ if (context->latency_histogram == NULL)
+ return;
+
+ /* latency is in ms, opt_interval is in s. */
+ bucket = (size_t) ((latency * (context->latency_histogram_size - 1))
+ / (1000.0 * opt_interval));
+ if (bucket >= context->latency_histogram_size)
+ bucket = context->latency_histogram_size - 1;
+ context->latency_histogram[bucket]++;
+} /* }}} void update_context */
+
+static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
+ __attribute__((unused)) int index)
+{
+ double latency;
+ unsigned int sequence;
+ int recv_ttl;
+ uint8_t recv_qos;
+ char recv_qos_str[16];
+ 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);
+
+ recv_qos = 0;
+ buffer_len = sizeof (recv_qos);
+ ping_iterator_get_info (iter, PING_INFO_RECV_QOS,
+ &recv_qos, &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);
+
+#if USE_NCURSES
+# define HOST_PRINTF(...) wprintw(main_win, __VA_ARGS__)
+#else
+# define HOST_PRINTF(...) printf(__VA_ARGS__)
+#endif
+
+ context->req_sent++;
+ if (latency > 0.0)
+ {
+ update_context (context, latency);
+
+#if USE_NCURSES
+ if (has_colors () == TRUE)
{
- if (errno != EINTR)
+ int color = OPING_GREEN;
+ double average = context_get_average (context);
+ double stddev = context_get_stddev (context);
+
+ if ((latency < (average - (2 * stddev)))
+ || (latency > (average + (2 * stddev))))
+ color = OPING_RED;
+ else if ((latency < (average - stddev))
+ || (latency > (average + stddev)))
+ color = OPING_YELLOW;
+
+ HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
+ data_len, context->host, context->addr,
+ sequence, recv_ttl,
+ format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
+ if ((recv_qos != 0) || (opt_send_qos != 0))
{
- perror ("nanosleep");
- break;
- }
- else if (opt_count == 0)
- {
- /* sigint */
- break;
+ HOST_PRINTF ("qos=%s ",
+ format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
}
+ HOST_PRINTF ("time=");
+ wattron (main_win, COLOR_PAIR(color));
+ HOST_PRINTF ("%.2f", latency);
+ wattroff (main_win, COLOR_PAIR(color));
+ HOST_PRINTF (" ms\n");
+ }
+ else
+ {
+#endif
+ HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
+ data_len,
+ context->host, context->addr,
+ sequence, recv_ttl);
+ if ((recv_qos != 0) || (opt_send_qos != 0))
+ {
+ HOST_PRINTF ("qos=%s ",
+ format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
+ }
+ HOST_PRINTF ("time=%.2f ms\n", latency);
+#if USE_NCURSES
+ }
+#endif
+ }
+ else
+ {
+#if USE_NCURSES
+ if (has_colors () == TRUE)
+ {
+ HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u ",
+ context->host, context->addr,
+ sequence);
+ wattron (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
+ HOST_PRINTF ("timeout");
+ wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD);
+ HOST_PRINTF ("\n");
}
+ else
+ {
+#endif
+ HOST_PRINTF ("echo reply from %s (%s): icmp_seq=%u timeout\n",
+ context->host, context->addr,
+ sequence);
+#if USE_NCURSES
+ }
+#endif
+ }
- if (opt_count > 0)
- opt_count--;
- } /* while (opt_count != 0) */
+#if USE_NCURSES
+ update_stats_from_context (context, iter);
+ wrefresh (main_win);
+#endif
+} /* }}} void update_host_hook */
+
+/* Prints statistics for each host, cleans up the contexts and returns the
+ * number of hosts which failed to return more than the fraction
+ * opt_exit_status_threshold of pings. */
+static int post_loop_hook (pingobj_t *ping) /* {{{ */
+{
+ pingobj_iter_t *iter;
+ int failure_count = 0;
+
+#if USE_NCURSES
+ endwin ();
+#endif
for (iter = ping_iterator_get (ping);
iter != NULL;
printf ("\n--- %s ping statistics ---\n"
"%i packets transmitted, %i received, %.2f%% packet loss, time %.1fms\n",
context->host, context->req_sent, context->req_rcvd,
- 100.0 * (context->req_sent - context->req_rcvd) / ((double) context->req_sent),
+ context_get_packet_loss (context),
context->latency_total);
+ {
+ double pct_failed = 1.0 - (((double) context->req_rcvd)
+ / ((double) context->req_sent));
+ if (pct_failed > opt_exit_status_threshold)
+ failure_count++;
+ }
+
if (context->req_rcvd != 0)
{
- double num_total;
double average;
double deviation;
+ double percentile;
- num_total = (double) context->req_rcvd;
-
- average = context->latency_total / num_total;
- deviation = sqrt (((num_total * context->latency_total_square) - (context->latency_total * context->latency_total))
- / (num_total * (num_total - 1.0)));
+ average = context_get_average (context);
+ deviation = context_get_stddev (context);
+ percentile = context_get_percentile (context, opt_percentile);
- printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n",
+ printf ("rtt min/avg/%.0f%%/max/sdev = "
+ "%.3f/%.3f/%.0f/%.3f/%.3f ms\n",
+ opt_percentile,
context->latency_min,
average,
+ percentile,
context->latency_max,
deviation);
}
ping_iterator_set_context (iter, NULL);
- free (context);
+ context_destroy (context);
}
+ return (failure_count);
+} /* }}} int post_loop_hook */
+
+int main (int argc, char **argv) /* {{{ */
+{
+ pingobj_t *ping;
+ pingobj_iter_t *iter;
+
+ struct sigaction sigint_action;
+
+ struct timeval tv_begin;
+ struct timeval tv_end;
+ struct timespec ts_wait;
+ struct timespec ts_int;
+
+ int optind;
+ int i;
+ int status;
+#if _POSIX_SAVED_IDS
+ uid_t saved_set_uid;
+
+ /* Save the old effective user id */
+ saved_set_uid = geteuid ();
+ /* Set the effective user ID to the real user ID without changing the
+ * saved set-user ID */
+ status = seteuid (getuid ());
+ if (status != 0)
+ {
+ fprintf (stderr, "Temporarily dropping privileges "
+ "failed: %s\n", strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ setlocale(LC_ALL, "");
+ optind = read_options (argc, argv);
+
+#if !_POSIX_SAVED_IDS
+ /* Cannot temporarily drop privileges -> reject every file but "-". */
+ if ((opt_filename != NULL)
+ && (strcmp ("-", opt_filename) != 0)
+ && (getuid () != geteuid ()))
+ {
+ fprintf (stderr, "Your real and effective user IDs don't "
+ "match. Reading from a file (option '-f')\n"
+ "is therefore too risky. You can still read "
+ "from STDIN using '-f -' if you like.\n"
+ "Sorry.\n");
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ if ((optind >= argc) && (opt_filename == NULL)) {
+ usage_exit (argv[0], 1);
+ }
+
+ 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));
+ }
+
+ if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
+ {
+ fprintf (stderr, "Setting TOS to %i failed: %s\n",
+ opt_send_qos, ping_get_error (ping));
+ }
+
+ {
+ double temp_sec;
+ double temp_nsec;
+
+ temp_nsec = modf (opt_interval, &temp_sec);
+ ts_int.tv_sec = (time_t) temp_sec;
+ ts_int.tv_nsec = (long) (temp_nsec * 1000000000L);
+
+ /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_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);
+ }
+
+#if _POSIX_SAVED_IDS
+ /* Regain privileges */
+ status = seteuid (saved_set_uid);
+ if (status != 0)
+ {
+ fprintf (stderr, "Temporarily re-gaining privileges "
+ "failed: %s\n", strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ 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;
+ }
+ else
+ {
+ host_num++;
+ }
+ }
+
+#if _POSIX_SAVED_IDS
+ /* Drop privileges */
+ status = seteuid (getuid ());
+ if (status != 0)
+ {
+ fprintf (stderr, "Temporarily dropping privileges "
+ "failed: %s\n", strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ fclose(infile);
+ }
+
+#if _POSIX_SAVED_IDS
+ /* Regain privileges */
+ status = seteuid (saved_set_uid);
+ if (status != 0)
+ {
+ fprintf (stderr, "Temporarily re-gaining privileges "
+ "failed: %s\n", strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ for (i = optind; i < argc; i++)
+ {
+ if (ping_host_add (ping, argv[i]) < 0)
+ {
+ const char *errmsg = ping_get_error (ping);
+
+ fprintf (stderr, "Adding host `%s' failed: %s\n", argv[i], errmsg);
+ continue;
+ }
+ else
+ {
+ host_num++;
+ }
+ }
+
+ /* Permanently drop root privileges if we're setuid-root. */
+ status = setuid (getuid ());
+ if (status != 0)
+ {
+ fprintf (stderr, "Dropping privileges failed: %s\n",
+ strerror (errno));
+ exit (EXIT_FAILURE);
+ }
+
+#if _POSIX_SAVED_IDS
+ saved_set_uid = (uid_t) -1;
+#endif
+
+ ping_initialize_contexts (ping);
+
+ 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)
+ {
+ perror ("sigaction");
+ return (1);
+ }
+
+ pre_loop_hook (ping);
+
+ while (opt_count != 0)
+ {
+ int index;
+ int status;
+
+ if (gettimeofday (&tv_begin, NULL) < 0)
+ {
+ perror ("gettimeofday");
+ return (1);
+ }
+
+ status = ping_send (ping);
+ if (status == -EINTR)
+ {
+ continue;
+ }
+ else if (status < 0)
+ {
+ fprintf (stderr, "ping_send failed: %s\n",
+ ping_get_error (ping));
+ return (1);
+ }
+
+ index = 0;
+ for (iter = ping_iterator_get (ping);
+ iter != NULL;
+ iter = ping_iterator_next (iter))
+ {
+ update_host_hook (iter, index);
+ index++;
+ }
+
+ pre_sleep_hook (ping);
+
+ /* Don't sleep in the last iteration */
+ if (opt_count == 1)
+ break;
+
+ if (gettimeofday (&tv_end, NULL) < 0)
+ {
+ perror ("gettimeofday");
+ return (1);
+ }
+
+ time_calc (&ts_wait, &ts_int, &tv_begin, &tv_end);
+
+ /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */
+ while ((status = nanosleep (&ts_wait, &ts_wait)) != 0)
+ {
+ if (errno == EINTR)
+ {
+ continue;
+ }
+ else
+ {
+ perror ("nanosleep");
+ break;
+ }
+ }
+
+ post_sleep_hook (ping);
+
+ if (opt_count > 0)
+ opt_count--;
+ } /* while (opt_count != 0) */
+
+ /* Returns the number of failed hosts according to -Z. */
+ status = post_loop_hook (ping);
+
ping_destroy (ping);
- return (0);
-}
+ if (status == 0)
+ exit (EXIT_SUCCESS);
+ else
+ {
+ if (status > 255)
+ status = 255;
+ exit (status);
+ }
+} /* }}} int main */
+
+/* vim: set fdm=marker : */