X-Git-Url: https://git.octo.it/?a=blobdiff_plain;ds=sidebyside;f=src%2Foping.c;h=d53edd87ffc2285e34fc7567e83ff4889fcf3dcd;hb=5566e8f16b83699915a3c884a0cbb182082858cc;hp=f55f1e5f23f08a564d235b1d8f985006aaed3279;hpb=d64c11378cef748cc6697f8e54c0051432153e6d;p=liboping.git diff --git a/src/oping.c b/src/oping.c index f55f1e5..d53edd8 100644 --- a/src/oping.c +++ b/src/oping.c @@ -1,6 +1,6 @@ /** * Object oriented C module to send ICMP and ICMPv6 `echo's. - * Copyright (C) 2006-2011 Florian octo Forster + * Copyright (C) 2006-2014 Florian octo Forster * * 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 @@ -75,26 +75,63 @@ #endif #include +#include #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 -# include + +# if HAVE_NCURSESW_NCURSES_H +# include +# elif HAVE_NCURSES_H +# include +# 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" -const char *bars[BARS_LEN] = { "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" }; - #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) /**/ @@ -127,6 +164,10 @@ static char *opt_filename = NULL; static int opt_count = -1; static int opt_send_ttl = 64; static uint8_t opt_send_qos = 0; +static double opt_exit_status_threshold = 1.0; +#if USE_NCURSES +static int opt_utf8 = 0; +#endif static int host_num = 0; @@ -271,6 +312,11 @@ static void usage_exit (const char *name, int status) /* {{{ */ " -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 + " -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 \n" @@ -473,7 +519,11 @@ static int read_options (int argc, char **argv) /* {{{ */ while (1) { - optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:"); + optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:" +#if USE_NCURSES + "uU" +#endif + ); if (optchar == -1) break; @@ -544,6 +594,33 @@ static int read_options (int argc, char **argv) /* {{{ */ set_opt_send_qos (optarg); break; +#if USE_NCURSES + case 'u': + opt_utf8 = 2; + break; + case 'U': + opt_utf8 = 1; + break; +#endif + + case 'Z': + { + 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 + opt_exit_status_threshold = tmp / 100.0; + + break; + } + case 'h': usage_exit (argv[0], 0); break; @@ -603,10 +680,107 @@ static void time_calc (struct timespec *ts_dest, /* {{{ */ } /* }}} void time_calc */ #if USE_NCURSES +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_prettyping_graph (ping_context_t *ctx, /* {{{ */ + double latency, unsigned int sequence) +{ + int color = OPING_RED; + char const *symbol = "!"; + int symbolc = '!'; + + int x_max; + int x_pos; + + x_max = getmaxx (ctx->window); + x_pos = ((sequence - 1) % (x_max - 4)) + 2; + + 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_pos, symbol); + else + mvwaddch (ctx->window, /* y = */ 3, /* x = */ x_pos, 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); + + wprintw (ctx->window, " "); + return (0); +} /* }}} int update_prettyping_graph */ + 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); @@ -640,54 +814,17 @@ static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) 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\n", + "rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms", ctx->latency_min, average, ctx->latency_max, deviation); } - if (latency > 0.0) - { - if (has_colors () == TRUE) - { - int color = OPING_GREEN; - float ratio = 0; - int index = 0; - - ratio = latency / PING_DEF_TTL; - if (ratio > 2/3.0) { - color = OPING_RED; - } - else if (ratio > 1/3.0) { - color = OPING_YELLOW; - } - index = (int) (ratio * BARS_LEN * 3); /* 3 colors */ - /* HOST_PRINTF ("%%r%f-ia%d-", ratio, index); */ - index = index % (BARS_LEN-1); - /* HOST_PRINTF ("im%d-", index); */ - if (index < 0 || index >= BARS_LEN) { - index = 0; /* safety check */ - } - wattron (ctx->window, COLOR_PAIR(color)); - mvwprintw (ctx->window, - /* y = */ 3, /* x = */ 1 + sequence, - bars[index]); - wattroff (ctx->window, COLOR_PAIR(color)); - } - else - { - } - } - else { - wattron (ctx->window, COLOR_PAIR(OPING_RED) | A_BOLD); - mvwprintw (ctx->window, - /* y = */ 3, /* x = */ 1 + sequence, - "!"); - wattroff (ctx->window, COLOR_PAIR(OPING_RED) | A_BOLD); - } + update_prettyping_graph (ctx, latency, sequence); + wrefresh (ctx->window); return (0); @@ -778,6 +915,9 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */ 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); @@ -935,26 +1075,30 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ if (has_colors () == TRUE) { int color = OPING_GREEN; - float ratio = 0; - int index = 0; - - ratio = latency / PING_DEF_TTL; - if (ratio > 2/3.0) { - color = OPING_RED; - } - else if (ratio > 1/3.0) { - color = OPING_YELLOW; - } - index = (int) (ratio * BARS_LEN * 3); /* 3 colors */ - /* HOST_PRINTF ("%%r%f-ia%d-", ratio, index); */ - index = index % (BARS_LEN-1); - /* HOST_PRINTF ("im%d-", index); */ - if (index < 0 || index >= BARS_LEN) { - index = 0; /* safety check */ - } - wattron (main_win, COLOR_PAIR(color)); - HOST_PRINTF (bars[index]); + 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)) + { + 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 { @@ -978,9 +1122,13 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ #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 ("!"); + HOST_PRINTF ("timeout"); wattroff (main_win, COLOR_PAIR(OPING_RED) | A_BOLD); + HOST_PRINTF ("\n"); } else { @@ -999,9 +1147,13 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ #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 (); @@ -1021,6 +1173,13 @@ static int post_loop_hook (pingobj_t *ping) /* {{{ */ 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 average; @@ -1040,7 +1199,7 @@ static int post_loop_hook (pingobj_t *ping) /* {{{ */ context_destroy (context); } - return (0); + return (failure_count); } /* }}} int post_loop_hook */ int main (int argc, char **argv) /* {{{ */ @@ -1279,7 +1438,12 @@ int main (int argc, char **argv) /* {{{ */ 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)); @@ -1312,14 +1476,13 @@ int main (int argc, char **argv) /* {{{ */ /* 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; } } @@ -1330,11 +1493,19 @@ int main (int argc, char **argv) /* {{{ */ 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 : */