![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/oping.c b/src/oping.c
index b971cb71e1001bcdd85dba2e1544b3f26e9f8dc4..6263a4def36459c7d94c8dbbb362cc89b56a9f6e 100644 (file)
--- a/src/oping.c
+++ b/src/oping.c
/**
* Object oriented C module to send ICMP and ICMPv6 `echo's.
- * Copyright (C) 2006-2010 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
# 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 <sys/types.h>
#endif
+#include <locale.h>
+#include <langinfo.h>
+
#if USE_NCURSES
# define NCURSES_OPAQUE 1
-# include <ncurses.h>
+/* 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
+
+double const threshold_green = 0.8;
+double const threshold_yellow = 0.95;
+
+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
+/* "─" */
+#define BOXPLOT_WHISKER_BAR (113 | A_ALTCHARSET)
+/* "├" */
+#define BOXPLOT_WHISKER_LEFT_END (116 | A_ALTCHARSET)
+/* "┤" */
+#define BOXPLOT_WHISKER_RIGHT_END (117 | A_ALTCHARSET)
+/* Inverted */
+#define BOXPLOT_BOX ' '
+/* "│", inverted */
+#define BOXPLOT_MEDIAN (120 | A_ALTCHARSET)
+
#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];
int req_sent;
int req_rcvd;
- double latency_min;
- double latency_max;
double latency_total;
- double latency_total_square;
+
+#ifndef HISTORY_SIZE_MAX
+# define HISTORY_SIZE_MAX 900
+#endif
+ /* The last n RTTs in the order they were sent. */
+ double history_by_time[HISTORY_SIZE_MAX];
+
+ /* Current number of entries in the history. This is a value between 0
+ * and HISTORY_SIZE_MAX. */
+ size_t history_size;
+
+ /* Number "received" entries in the history, i.e. non-NAN entries. */
+ size_t history_received;
+
+ /* Index of the next RTT to be written to history_by_time. This wraps
+ * around to 0 once the histroty has grown to HISTORY_SIZE_MAX. */
+ size_t history_index;
+
+ /* The last history_size RTTs sorted by value. timed out packets (NAN
+ * entries) are sorted to the back. */
+ double history_by_value[HISTORY_SIZE_MAX];
+
+ /* If set to true, history_by_value has to be re-calculated. */
+ _Bool history_dirty;
#if USE_NCURSES
WINDOW *window;
} ping_context_t;
static double opt_interval = 1.0;
+static double opt_timeout = PING_DEF_TIMEOUT;
static int opt_addrfamily = PING_DEF_AF;
static char *opt_srcaddr = NULL;
static char *opt_device = NULL;
+static char *opt_mark = NULL;
static char *opt_filename = NULL;
static int opt_count = -1;
static int opt_send_ttl = 64;
-static unsigned opt_send_tos = 0;
+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_show_graph = 1;
+static int opt_utf8 = 0;
+#endif
static int host_num = 0;
memset (ret, '\0', sizeof (ping_context_t));
- ret->latency_min = -1.0;
- ret->latency_max = -1.0;
ret->latency_total = 0.0;
- ret->latency_total_square = 0.0;
#if USE_NCURSES
ret->window = NULL;
free (context);
} /* }}} void context_destroy */
-static double context_get_average (ping_context_t *ctx) /* {{{ */
+static int compare_double (void const *arg0, void const *arg1) /* {{{ */
{
- double num_total;
+ double dbl0 = *((double *) arg0);
+ double dbl1 = *((double *) arg1);
- if (ctx == NULL)
- return (-1.0);
+ if (isnan (dbl0))
+ {
+ if (isnan (dbl1))
+ return 0;
+ else
+ return 1;
+ }
+ else if (isnan (dbl1))
+ return -1;
+ else if (dbl0 < dbl1)
+ return -1;
+ else if (dbl0 > dbl1)
+ return 1;
+ else
+ return 0;
+} /* }}} int compare_double */
+
+static void clean_history (ping_context_t *ctx) /* {{{ */
+{
+ size_t i;
+
+ if (!ctx->history_dirty)
+ return;
- if (ctx->req_rcvd < 1)
- return (-0.0);
+ /* Copy all values from by_time to by_value. */
+ memcpy (ctx->history_by_value, ctx->history_by_time,
+ sizeof (ctx->history_by_time));
- num_total = (double) ctx->req_rcvd;
- return (ctx->latency_total / num_total);
-} /* }}} double context_get_average */
+ /* Sort all RTTs. */
+ qsort (ctx->history_by_value, ctx->history_size, sizeof
+ (ctx->history_by_value[0]), compare_double);
-static double context_get_stddev (ping_context_t *ctx) /* {{{ */
+ /* Update the number of received RTTs. */
+ ctx->history_received = 0;
+ for (i = 0; i < ctx->history_size; i++)
+ if (!isnan (ctx->history_by_value[i]))
+ ctx->history_received++;
+
+ /* Mark as clean. */
+ ctx->history_dirty = 0;
+} /* }}} void clean_history */
+
+static double percentile_to_latency (ping_context_t *ctx, /* {{{ */
+ double percentile)
{
- double num_total;
+ size_t index;
- if (ctx == NULL)
- return (-1.0);
+ clean_history (ctx);
- if (ctx->req_rcvd < 1)
- return (-0.0);
- else if (ctx->req_rcvd < 2)
- return (0.0);
+ /* Not a single packet was received successfully. */
+ if (ctx->history_received == 0)
+ return NAN;
+
+ if (percentile <= 0.0)
+ index = 0;
+ else if (percentile >= 100.0)
+ index = ctx->history_received - 1;
+ else
+ {
+ index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received));
+ assert (index > 0);
+ index--;
+ }
- 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 */
+ return (ctx->history_by_value[index]);
+} /* }}} double percentile_to_latency */
+
+#if USE_NCURSES
+static double latency_to_ratio (ping_context_t *ctx, /* {{{ */
+ double latency)
+{
+ size_t low;
+ size_t high;
+ size_t index;
+
+ clean_history (ctx);
+
+ /* Not a single packet was received successfully. */
+ if (ctx->history_received == 0)
+ return NAN;
+
+ low = 0;
+ high = ctx->history_received - 1;
+
+ if (latency < ctx->history_by_value[low])
+ return 0.0;
+ else if (latency >= ctx->history_by_value[high])
+ return 100.0;
+
+ /* Do a binary search for the latency. This will work even when the
+ * exact latency is not in the array. If the latency is in the array
+ * multiple times, "low" will be set to the index of the last
+ * occurrence. The value at index "high" will be larger than the
+ * searched for latency (assured by the above "if" block. */
+ while ((high - low) > 1)
+ {
+ index = (high + low) / 2;
+
+ if (ctx->history_by_value[index] > latency)
+ high = index;
+ else
+ low = index;
+ }
+
+ assert (ctx->history_by_value[high] > latency);
+ assert (ctx->history_by_value[low] <= latency);
+
+ if (ctx->history_by_value[low] == latency)
+ index = low;
+ else
+ index = high;
+
+ return (((double) (index + 1)) / ((double) ctx->history_received));
+} /* }}} double latency_to_ratio */
+#endif
static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */
{
static void usage_exit (const char *name, int status) /* {{{ */
{
- int name_length;
-
- name_length = (int) strlen (name);
-
fprintf (stderr, "Usage: %s [OPTIONS] "
"-f filename | host [host [host ...]]\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"
+ " -w timeout time to wait for replies, in seconds\n"
" -t ttl time to live for each ICMP packet\n"
- " -z tos Type-of-service/class-of-service 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"
+ " -m mark mark to set on outgoing packets\n"
" -f filename filename to read hosts from\n"
+#if USE_NCURSES
+ " -u / -U force / disable UTF-8 output\n"
+ " -g graph graph type to draw\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"
+ "\noping "PACKAGE_VERSION", http://noping.cc/\n"
+ "by Florian octo Forster <ff@octo.it>\n"
"for contributions see `AUTHORS'\n",
name);
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;
+
+ return (buffer);
+} /* }}} char *format_qos */
+
static int read_options (int argc, char **argv) /* {{{ */
{
int optchar;
while (1)
{
- optchar = getopt (argc, argv, "46c:hi:I:t:z:f:D:");
+ optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:P:m:w:"
+#if USE_NCURSES
+ "uUg:"
+#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);
opt_interval = new_interval;
}
break;
+
+ case 'w':
+ {
+ char *endp = NULL;
+ double t = strtod (optarg, &endp);
+ if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0))
+ opt_timeout = t;
+ else
+ fprintf (stderr, "Ignoring invalid timeout: %s\n",
+ optarg);
+ }
+ break;
+
case 'I':
{
if (opt_srcaddr != NULL)
opt_device = optarg;
break;
+ case 'm':
+ opt_mark = optarg;
+ break;
+
case 't':
{
int new_send_ttl;
break;
}
- case 'z':
+ case 'Q':
+ set_opt_send_qos (optarg);
+ break;
+
+ 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;
+
+#if USE_NCURSES
+ case 'g':
+ if (strcasecmp ("none", optarg) == 0)
+ opt_show_graph = 0;
+ else if (strcasecmp ("prettyping", optarg) == 0)
+ opt_show_graph = 1;
+ else if (strcasecmp ("histogram", optarg) == 0)
+ opt_show_graph = 2;
+ else if (strcasecmp ("boxplot", optarg) == 0)
+ opt_show_graph = 3;
+ else
+ fprintf (stderr, "Unknown graph option: %s\n", optarg);
+ break;
+
+ case 'u':
+ opt_utf8 = 2;
+ break;
+ case 'U':
+ opt_utf8 = 1;
+ break;
+#endif
+
+ case 'Z':
{
- int new_send_tos;
- new_send_tos = atoi (optarg);
- if ((new_send_tos > 0) && (new_send_tos < 256))
- opt_send_tos = new_send_tos;
+ char *endptr = NULL;
+ double tmp;
+
+ 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
- fprintf (stderr, "Ignoring invalid TOS argument: %s\n",
- optarg);
+ opt_exit_status_threshold = tmp / 100.0;
+
break;
}
case 'h':
usage_exit (argv[0], 0);
break;
+
default:
usage_exit (argv[0], 1);
}
}
+ if (opt_percentile <= 0.0)
+ opt_percentile = OPING_DEFAULT_PERCENTILE;
+
return (optind);
} /* }}} read_options */
} /* }}} void time_calc */
#if USE_NCURSES
-static int update_stats_from_context (ping_context_t *ctx) /* {{{ */
+static _Bool has_utf8() /* {{{ */
+{
+# 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 */
+
+static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */
{
+ uint32_t *counters;
+ double *ratios;
+ size_t i;
+ size_t x_max;
+ size_t x;
+
+ clean_history (ctx);
+
+ if (ctx->history_received == 0)
+ return (ENOENT);
+
+ x_max = (size_t) getmaxx (ctx->window);
+ if (x_max <= 8)
+ return (EINVAL);
+ x_max -= 4;
+
+ counters = calloc (x_max, sizeof (*counters));
+ ratios = calloc (x_max, sizeof (*ratios));
+
+ /* Bucketize */
+ for (i = 0; i < ctx->history_received; i++)
+ {
+ double latency = ctx->history_by_value[i] / 1000.0;
+ size_t index = (size_t) (((double) x_max) * latency / opt_interval);
+
+ if (index >= x_max)
+ index = x_max - 1;
+
+ counters[index]++;
+ }
+
+ /* Sum and calc ratios */
+ ratios[0] = ((double) counters[0]) / ((double) ctx->history_received);
+ for (x = 1; x < x_max; x++)
+ {
+ counters[x] += counters[x - 1];
+ ratios[x] = ((double) counters[x]) / ((double) ctx->history_received);
+ }
+
+ for (x = 0; x < x_max; x++)
+ {
+ int symbol = ' ';
+ _Bool reverse = 0;
+
+ if (x == 0)
+ {
+ if (ratios[x] >= 0.5)
+ {
+ symbol = BOXPLOT_MEDIAN;
+ reverse = 1;
+ }
+ else if (ratios[x] > 0.25)
+ {
+ symbol = BOXPLOT_BOX;
+ reverse = 1;
+ }
+ else if (ratios[x] > 0.025)
+ symbol = BOXPLOT_WHISKER_BAR;
+ else
+ symbol = ' '; /* NOP */
+ }
+ else /* (x != 0) */
+ {
+ if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5))
+ {
+ symbol = BOXPLOT_MEDIAN;
+ reverse = 1;
+ }
+ else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75))
+ || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75)))
+ {
+ symbol = BOXPLOT_BOX;
+ reverse = 1;
+ }
+ else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025))
+ {
+ if (ratios[x - 1] < 0.025)
+ symbol = BOXPLOT_WHISKER_LEFT_END;
+ else
+ symbol = BOXPLOT_WHISKER_BAR;
+ }
+ else if ((ratios[x] > .5) && (ratios[x] < 0.975))
+ {
+ symbol = BOXPLOT_WHISKER_BAR;
+ }
+ else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975))
+ symbol = BOXPLOT_WHISKER_RIGHT_END;
+ }
+
+ if (reverse)
+ wattron (ctx->window, A_REVERSE);
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
+ // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol);
+ if (reverse)
+ wattroff (ctx->window, A_REVERSE);
+ }
+
+ free (counters);
+ free (ratios);
+ return (0);
+} /* }}} int update_graph_boxplot */
+
+static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */
+ double latency, unsigned int sequence)
+{
+ size_t x;
+ size_t x_max;
+ size_t history_offset;
+
+ x_max = (size_t) getmaxx (ctx->window);
+ if (x_max <= 4)
+ return (EINVAL);
+ x_max -= 4;
+
+ /* Determine the first index in the history we need to draw
+ * the graph. */
+ history_offset = 0;
+ if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */
+ {
+ if (ctx->history_index > x_max)
+ history_offset = ctx->history_index - x_max;
+ else /* wrap around */
+ history_offset = ctx->history_index + ctx->history_size - x_max;
+ }
+ else /* window is larger than history */
+ {
+ if (ctx->history_index != ctx->history_size) /* no longer growing. */
+ history_offset = ctx->history_index;
+ else /* start-up */
+ history_offset = 0;
+ }
+
+ for (x = 0; x < x_max; x++)
+ {
+ size_t index;
+ double latency;
+
+ int color = OPING_RED;
+ char const *symbol = "!";
+ int symbolc = '!';
+
+ if (x >= ctx->history_size)
+ {
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
+ continue;
+ }
+
+ index = (history_offset + x) % ctx->history_size;
+ latency = ctx->history_by_time[index];
+
+ if (latency >= 0.0)
+ {
+ double ratio;
+
+ size_t symbols_num = hist_symbols_acs_num;
+ size_t colors_num = 1;
+
+ size_t index_symbols;
+ size_t index_colors;
+ size_t intensity;
+
+ /* latency is in milliseconds, opt_interval is in seconds. */
+ ratio = (latency * 0.001) / opt_interval;
+ if (ratio > 1) {
+ ratio = 1.0;
+ }
+
+ if (has_utf8 ())
+ symbols_num = hist_symbols_utf8_num;
+
+ if (has_colors () == TRUE)
+ colors_num = hist_colors_num;
+
+ intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
+ if (intensity >= (symbols_num * colors_num))
+ intensity = (symbols_num * colors_num) - 1;
+
+ index_symbols = intensity % symbols_num;
+ assert (index_symbols < symbols_num);
+
+ index_colors = intensity / symbols_num;
+ assert (index_colors < colors_num);
+
+ if (has_utf8())
+ {
+ color = hist_colors_utf8[index_colors];
+ symbol = hist_symbols_utf8[index_symbols];
+ }
+ else
+ {
+ color = hist_colors_acs[index_colors];
+ symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
+ }
+ }
+ else /* if (!(latency >= 0.0)) */
+ wattron (ctx->window, A_BOLD);
+
+ if (has_colors () == TRUE)
+ wattron (ctx->window, COLOR_PAIR(color));
+
+ if (has_utf8())
+ mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol);
+ else
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc);
+
+ if (has_colors () == TRUE)
+ wattroff (ctx->window, COLOR_PAIR(color));
+
+ /* Use negation here to handle NaN correctly. */
+ if (!(latency >= 0.0))
+ wattroff (ctx->window, A_BOLD);
+ } /* for (x) */
+
+ return (0);
+} /* }}} int update_graph_prettyping */
+
+static int update_graph_histogram (ping_context_t *ctx) /* {{{ */
+{
+ uint32_t *counters;
+ uint32_t *accumulated;
+ uint32_t max;
+ size_t i;
+ size_t x_max;
+ size_t x;
+
+ size_t symbols_num = hist_symbols_acs_num;
+
+ clean_history (ctx);
+
+ if (ctx->history_received == 0)
+ return (ENOENT);
+
+ if (has_utf8 ())
+ symbols_num = hist_symbols_utf8_num;
+
+ x_max = (size_t) getmaxx (ctx->window);
+ if (x_max <= 4)
+ return (EINVAL);
+ x_max -= 4;
+
+ counters = calloc (x_max, sizeof (*counters));
+ accumulated = calloc (x_max, sizeof (*accumulated));
+
+ /* Bucketize */
+ max = 0;
+ for (i = 0; i < ctx->history_received; i++)
+ {
+ double latency = ctx->history_by_value[i] / 1000.0;
+ size_t index = (size_t) (((double) x_max) * latency / opt_interval);
+
+ if (index >= x_max)
+ index = x_max - 1;
+
+ counters[index]++;
+ if (max < counters[index])
+ max = counters[index];
+ }
+
+ /* Sum */
+ accumulated[0] = counters[0];
+ for (x = 1; x < x_max; x++)
+ accumulated[x] = counters[x] + accumulated[x - 1];
+
+ /* Calculate ratios */
+ for (x = 0; x < x_max; x++)
+ {
+ double height = ((double) counters[x]) / ((double) max);
+ double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received);
+ double ratio_prev = 0.0;
+ size_t index;
+ int color = 0;
+
+ index = (size_t) (height * ((double) symbols_num));
+ if (index >= symbols_num)
+ index = symbols_num - 1;
+
+ if (x > 0)
+ ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received);
+
+ if (has_colors () == TRUE)
+ {
+ if ((ratio_this <= threshold_green)
+ || ((ratio_prev < threshold_green)
+ && (ratio_this > threshold_green)))
+ color = OPING_GREEN;
+ else if ((ratio_this <= threshold_yellow)
+ || ((ratio_prev < threshold_yellow)
+ && (ratio_this > threshold_yellow)))
+ color = OPING_YELLOW;
+ else
+ color = OPING_RED;
+
+ wattron (ctx->window, COLOR_PAIR(color));
+ }
+
+ if (counters[x] == 0)
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' ');
+ else if (has_utf8 ())
+ mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2,
+ hist_symbols_utf8[index]);
+ else
+ mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2,
+ hist_symbols_acs[index] | A_ALTCHARSET);
+
+ if (has_colors () == TRUE)
+ wattroff (ctx->window, COLOR_PAIR(color));
+
+ }
+
+ free (accumulated);
+ return (0);
+} /* }}} int update_graph_histogram */
+
+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_get_info (iter, PING_INFO_LATENCY,
+ &latency, &buffer_len);
+
+ unsigned int sequence = 0;
+ buffer_len = sizeof (sequence);
+ ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
+ &sequence, &buffer_len);
+
+
if ((ctx == NULL) || (ctx->window == NULL))
return (EINVAL);
- werase (ctx->window);
+ /* werase (ctx->window); */
box (ctx->window, 0, 0);
wattron (ctx->window, A_BOLD);
ctx->latency_total);
if (ctx->req_rcvd != 0)
{
- double average;
- double deviation;
+ double min;
+ double median;
+ double max;
+ double percentile;
+
+ min = percentile_to_latency (ctx, 0.0);
+ median = percentile_to_latency (ctx, 50.0);
+ max = percentile_to_latency (ctx, 100.0);
+ percentile = percentile_to_latency (ctx, opt_percentile);
- average = context_get_average (ctx);
- deviation = context_get_stddev (ctx);
-
mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2,
- "rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms",
- ctx->latency_min,
- average,
- ctx->latency_max,
- deviation);
+ "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ",
+ min, median, opt_percentile, percentile, max);
}
+ if (opt_show_graph == 1)
+ update_graph_prettyping (ctx, latency, sequence);
+ else if (opt_show_graph == 2)
+ update_graph_histogram (ctx);
+ else if (opt_show_graph == 3)
+ update_graph_boxplot (ctx);
+
wrefresh (ctx->window);
return (0);
int width = 0;
int height = 0;
int main_win_height;
+ int box_height = (opt_show_graph == 0) ? 4 : 5;
getmaxyx (stdscr, height, width);
if ((height < 1) || (width < 1))
return (EINVAL);
- main_win_height = height - (4 * host_num);
+ main_win_height = height - (box_height * host_num);
wresize (main_win, main_win_height, /* width = */ width);
/* Allow scrolling */
scrollok (main_win, TRUE);
delwin (context->window);
context->window = NULL;
}
- context->window = newwin (/* height = */ 4,
- /* width = */ 0,
- /* y = */ main_win_height + (4 * context->index),
+ context->window = newwin (/* height = */ box_height,
+ /* width = */ width,
+ /* y = */ main_win_height + (box_height * context->index),
/* x = */ 0);
}
break;
else if (key == KEY_RESIZE)
need_resize = 1;
+ else if (key == 'g')
+ {
+ if (opt_show_graph == 3)
+ opt_show_graph = 1;
+ else if (opt_show_graph > 0)
+ opt_show_graph++;
+ }
}
if (need_resize)
int width = 0;
int height = 0;
int main_win_height;
+ int box_height = (opt_show_graph == 0) ? 4 : 5;
initscr ();
cbreak ();
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 - (4 * host_num);
+ main_win_height = height - (box_height * host_num);
main_win = newwin (/* height = */ main_win_height,
- /* width = */ 0,
+ /* width = */ width,
/* y = */ 0, /* x = */ 0);
/* Allow scrolling */
scrollok (main_win, TRUE);
delwin (context->window);
context->window = NULL;
}
- context->window = newwin (/* height = */ 4,
- /* width = */ 0,
- /* y = */ main_win_height + (4 * context->index),
+ context->window = newwin (/* height = */ box_height,
+ /* width = */ width,
+ /* y = */ main_win_height + (box_height * context->index),
/* x = */ 0);
}
@@ -625,13 +1449,38 @@ static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */
} /* }}} int post_sleep_hook */
#endif
+static void update_context (ping_context_t *ctx, double latency) /* {{{ */
+{
+ ctx->req_sent++;
+
+ if (latency > 0.0)
+ {
+ ctx->req_rcvd++;
+ ctx->latency_total += latency;
+ }
+ else
+ {
+ latency = NAN;
+ }
+
+ ctx->history_by_time[ctx->history_index] = latency;
+
+ ctx->history_dirty = 1;
+
+ /* Update index and size. */
+ ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX;
+ if (ctx->history_size < HISTORY_SIZE_MAX)
+ ctx->history_size++;
+} /* }}} void update_context */
+
static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
- int index)
+ __attribute__((unused)) int index)
{
double latency;
unsigned int sequence;
int recv_ttl;
- unsigned recv_tos;
+ uint8_t recv_qos;
+ char recv_qos_str[16];
size_t buffer_len;
size_t data_len;
ping_context_t *context;
ping_iterator_get_info (iter, PING_INFO_RECV_TTL,
&recv_ttl, &buffer_len);
- recv_tos = 0;
- buffer_len = sizeof (recv_tos);
- ping_iterator_get_info (iter, PING_INFO_TOS,
- &recv_tos, &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,
# define HOST_PRINTF(...) printf(__VA_ARGS__)
#endif
- context->req_sent++;
+ update_context (context, latency);
+
if (latency > 0.0)
{
- 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 USE_NCURSES
if (has_colors () == TRUE)
{
+ double ratio;
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)))
+ ratio = latency_to_ratio (context, latency);
+ if (ratio < threshold_green)
+ color = OPING_GREEN;
+ else if (ratio < threshold_yellow)
color = OPING_YELLOW;
+ else
+ color = OPING_RED;
- HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i tos=%u "
- "time=",
+ HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
data_len, context->host, context->addr,
- sequence, recv_ttl, recv_tos);
+ sequence, recv_ttl,
+ format_qos (recv_qos, recv_qos_str, sizeof (recv_qos_str)));
+ 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=");
wattron (main_win, COLOR_PAIR(color));
HOST_PRINTF ("%.2f", latency);
wattroff (main_win, COLOR_PAIR(color));
else
{
#endif
- HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i tos=%u "
- "time=%.2f ms\n",
+ HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ",
data_len,
context->host, context->addr,
- sequence, recv_ttl, recv_tos, latency);
+ 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
+ else /* if (!(latency > 0.0)) */
{
#if USE_NCURSES
if (has_colors () == TRUE)
}
#if USE_NCURSES
- update_stats_from_context (context);
+ 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 ();
context_get_packet_loss (context),
context->latency_total);
- if (context->req_rcvd != 0)
{
- double average;
- double deviation;
-
- average = context_get_average (context);
- deviation = context_get_stddev (context);
+ double pct_failed = 1.0 - (((double) context->req_rcvd)
+ / ((double) context->req_sent));
+ if (pct_failed > opt_exit_status_threshold)
+ failure_count++;
+ }
- printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n",
- context->latency_min,
- average,
- context->latency_max,
- deviation);
+ if (context->req_rcvd != 0)
+ {
+ double min;
+ double median;
+ double max;
+ double percentile;
+
+ min = percentile_to_latency (context, 0.0);
+ median = percentile_to_latency (context, 50.0);
+ max = percentile_to_latency (context, 100.0);
+ percentile = percentile_to_latency (context, opt_percentile);
+
+ printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n",
+ min, median, opt_percentile, percentile, max);
}
ping_iterator_set_context (iter, NULL);
context_destroy (context);
}
- return (0);
+ return (failure_count);
} /* }}} int post_loop_hook */
int main (int argc, char **argv) /* {{{ */
}
#endif
+ setlocale(LC_ALL, "");
optind = read_options (argc, argv);
#if !_POSIX_SAVED_IDS
opt_send_ttl, ping_get_error (ping));
}
- if (ping_setopt (ping, PING_OPT_TOS, &opt_send_tos) != 0)
+ if (ping_setopt (ping, PING_OPT_QOS, &opt_send_qos) != 0)
{
fprintf (stderr, "Setting TOS to %i failed: %s\n",
- opt_send_tos, ping_get_error (ping));
+ opt_send_qos, ping_get_error (ping));
}
{
/* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */
}
+ if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0)
+ {
+ fprintf (stderr, "Setting timeout failed: %s\n",
+ ping_get_error (ping));
+ }
+
if (opt_addrfamily != PING_DEF_AF)
ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily);
}
}
+ if(opt_mark != NULL)
+ {
+ char *endp;
+ int mark = strtoul(opt_mark, &endp, 0);
+ if(opt_mark[0] != '\0' && *endp == '\0')
+ {
+ if(ping_setopt(ping, PING_OPT_MARK, (void*)(&mark)) != 0)
+ {
+ fprintf (stderr, "Setting mark failed: %s\n",
+ ping_get_error (ping));
+ }
+ }
+ else{
+ fprintf(stderr, "Ignoring invalid mark: %s\n", optarg);
+ }
+ }
+
if (opt_filename != NULL)
{
FILE *infile;
exit (EXIT_FAILURE);
}
+ if (host_num == 0)
+ exit (EXIT_FAILURE);
+
#if _POSIX_SAVED_IDS
saved_set_uid = (uid_t) -1;
#endif
return (1);
}
- if (ping_send (ping) < 0)
+ status = ping_send (ping);
+ if (status == -EINTR)
+ {
+ continue;
+ }
+ else if (status < 0)
{
fprintf (stderr, "ping_send failed: %s\n",
ping_get_error (ping));
/* 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)
+ if (errno == EINTR)
{
- perror ("nanosleep");
- break;
+ continue;
}
- else if (opt_count == 0)
+ else
{
- /* sigint */
+ perror ("nanosleep");
break;
}
}
opt_count--;
} /* while (opt_count != 0) */
- post_loop_hook (ping);
+ /* 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 : */