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- /*
- * fping: fast-ping, file-ping, favorite-ping, funky-ping
- *
- * Ping a list of target hosts in a round robin fashion.
- * A better ping overall.
- *
- */
-
- /*
- ***************************************************
- *
- * Standard RCS Header information (see co(1))
- *
- * $Author: schemers $
- *
- * $Date: 1997/01/08 20:29:33 $
- *
- * $Revision: 2.2 $
- *
- * $Locker: $
- *
- * $Source: /afs/ir/group/networking/src/fping/fping-2.2/src/RCS/fping.c,v $
- *
- * $State: Exp $
- *
- * $Log: fping.c,v $
- * Revision 2.2 1997/01/08 20:29:33 schemers
- * changes for autoconf/automake
- *
- * Revision 2.1 1997/01/08 19:07:18 schemers
- * checked in RL "Bob"'s changes before configure'ing
- *
- * Revision 2.0 1994/10/31 21:26:23 schemers
- * many changes by RL "Bob" Morgan
- * add timing data collection, loop mode, per-packet output, etc
- *
- * Revision 1.24 1993/12/10 23:11:39 schemers
- * commented out seteuid(getuid()) since it isn't needed
- *
- * Revision 1.23 1993/12/10 18:33:41 schemers
- * Took out the -f option for non-root users. This can be enabled by
- * defining ENABLE_F_OPTION before compiling. There is a call to
- * access before opening the file, but there is a race condition.
- * Reading from stdin is much safer.
- *
- * Revision 1.22 1993/11/16 19:49:24 schemers
- * Took out setuid(getuid()) and used access() system call to
- * check for access to the file specified with "-f".
- *
- * Revision 1.21 1993/07/20 18:08:19 schemers
- * commented out the test to make sure the ping packet came from the
- * same IP address as the one we sent to. This could cause problems on
- * multi-homed hosts.
- *
- * Revision 1.20 1993/02/23 00:16:38 schemers
- * fixed syntax error (should have compiled before checking in...)
- *
- * Revision 1.19 1993/02/23 00:15:15 schemers
- * turned off printing of "is alive" when -a is specified.
- *
- * Revision 1.18 1992/07/28 15:16:44 schemers
- * added a fflush(stdout) call before the summary is sent to stderr, so
- * everything shows up in the right order.
- *
- * Revision 1.17 1992/07/23 03:29:42 schemers
- * fixed declaration of timeval_diff.
- *
- * Revision 1.16 1992/07/22 19:24:37 schemers
- * Modified file reading so it would skip blanks lines or lines starting
- * with a '#'. Now you can do something like:
- *
- * fping -ad < /etc/hosts
- *
- * Revision 1.15 1992/07/21 17:07:18 schemers
- * Put in sanity checks so only root can specify "dangerous" options.
- * Changed usage to show switchs in alphabetical order.
- *
- * Revision 1.14 1992/07/21 16:40:52 schemers
- * Now when sendto returns an error, the host is considered unreachable and
- * and the error message (from errno) is displayed.
- *
- * Revision 1.13 1992/07/17 21:02:17 schemers
- * changed default timeout to 2500 msec (for WANs), and default try
- * to 3. This gives 10 second overall timeout.
- *
- * Added -e option for showing elapsed (round-trip) time on packets
- *
- * Modified -s option to inlude to round-trip stats
- *
- * Added #ifndef DEFAULT_* stuff its easier to change the defaults
- *
- * Reorganized main loop.
- *
- * cleaned up timeval stuff. removed set_timeval and timeval_expired
- * since they aren't needed anymore. Just use timeval_diff.
- *
- * Revision 1.12 1992/07/17 16:38:54 schemers
- * move socket create call so I could do a setuid(getuid()) before the
- * fopen call is made. Once the socket is created root privs aren't needed
- * to send stuff out on it.
- *
- * Revision 1.11 1992/07/17 16:28:38 schemers
- * moved num_timeout counter. It really was for debug purposes and didn't
- * make sense to the general public :-) Now it is the number of timeouts
- * (pings that didn't get received with the time limit).
- *
- * Revision 1.10 1992/07/16 16:24:38 schemers
- * changed usage() to use fprintf(stderr,"...");
- *
- * Revision 1.9 1992/07/16 16:00:04 schemers
- * Added _NO_PROTO stuff for older compilers, and _POSIX_SOURCE
- * for unistd.h, and _POSIX_SOURCE for stdlib.h. Also added
- * check for __cplusplus.
- *
- * Revision 1.8 1992/07/16 05:44:41 schemers
- * changed -a and -u to only show hostname in results. This is
- * for easier parsing. Also added -v flag
- *
- * Revision 1.7 1992/07/14 18:45:23 schemers
- * initialized last_time in add_host function
- *
- * Revision 1.6 1992/07/14 18:32:40 schemers
- * changed select to use FD_ macros
- *
- * Revision 1.5 1992/07/14 17:21:22 schemers
- * standardized exit status codes
- *
- * Revision 1.4 1992/06/26 15:25:35 schemers
- * changed name from rrping to fping
- *
- * Revision 1.3 1992/06/24 15:39:32 schemers
- * added -d option for unreachable systems
- *
- * Revision 1.2 1992/06/23 03:01:23 schemers
- * misc fixes from R.L. "Bob" Morgan
- *
- * Revision 1.1 1992/06/19 18:23:52 schemers
- * Initial revision
- *
- *--------------------------------------------------
- * Copyright (c) 1992, 1994, 1997 Board of Trustees
- * Leland Stanford Jr. University
- ***************************************************
- */
-
- /*
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Stanford University. The name of the University may not be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef _NO_PROTO
- #if !__STDC__ && !defined(__cplusplus) && !defined(FUNCPROTO) \
- && !defined(_POSIX_SOURCE)
- #define _NO_PROTO
- #endif /* __STDC__ */
- #endif /* _NO_PROTO */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- #include <config.h>
-
-
- #include <stdio.h>
- #include <errno.h>
- #include <time.h>
- #include <signal.h>
-
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
-
- #ifdef HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
-
- #include <string.h>
-
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/socket.h>
-
- #if HAVE_SYS_FILE_H
- #include <sys/file.h>
- #endif
-
- #include <netinet/in_systm.h>
- #include <netinet/in.h>
-
- /* Linux has bizarre ip.h and ip_icmp.h */
- #if defined(__linux__)
- #include "linux.h"
- #else
- #include <netinet/ip.h>
- #include <netinet/ip_icmp.h>
- #endif
-
- #include <arpa/inet.h>
- #include <netdb.h>
-
- /* RS6000 has sys/select.h */
- #ifdef HAVE_SYS_SELECT_H
- #include <sys/select.h>
- #endif
-
- #include "options.h"
-
- /* externals */
-
- extern char *optarg;
- extern int optind,opterr;
- extern char *sys_errlist[];
- extern int h_errno;
-
- #ifdef __cplusplus
- }
- #endif
-
- /* Ping packet defines */
-
- /* data added after ICMP header for our nefarious purposes */
-
- typedef struct ping_data {
- int ping_count; /* counts up to -c count or 1 */
- struct timeval ping_ts; /* time sent */
- } PING_DATA;
-
- #define MIN_PING_DATA sizeof(PING_DATA)
- #define MAX_IP_PACKET 65536 /* (theoretical) max IP packet size */
- #define SIZE_IP_HDR 20
- #define SIZE_ICMP_HDR ICMP_MINLEN /* from ip_icmp.h */
- #define MAX_PING_DATA (MAX_IP_PACKET - SIZE_IP_HDR - SIZE_ICMP_HDR)
- /* sized so as to be like traditional ping */
- #define DEFAULT_PING_DATA_SIZE (MIN_PING_DATA + 44)
-
- /* maxima and minima */
- #define MAX_COUNT 10000
- #define MIN_INTERVAL 10 /* in millisec */
- #define MIN_PERHOST_INTERVAL 20 /* in millisec */
- #define MIN_TIMEOUT 50 /* in millisec */
- #define MAX_RETRY 20
-
- /* response time array flags */
- #define RESP_WAITING -1
- #define RESP_UNUSED -2
-
- /* debugging flags */
- #ifdef DEBUG
- #define DBG_TRACE 1
- #define DBG_SENT_TIMES 2
- #define DBG_RANDOM_LOSE_FEW 4
- #define DBG_RANDOM_LOSE_MANY 8
- #define DBG_PRINT_PER_SYSTEM 16
- #define DBG_REPORT_ALL_RTTS 32
- #endif
-
- /* Long names for ICMP packet types */
- char *icmp_type_str[19] = {
- "ICMP Echo Reply", /* 0 */
- "",
- "",
- "ICMP Unreachable", /* 3 */
- "ICMP Source Quench", /* 4 */
- "ICMP Redirect", /* 5 */
- "",
- "",
- "ICMP Echo", /* 8 */
- "",
- "",
- "ICMP Time Exceeded", /* 11 */
- "ICMP Paramter Problem", /* 12 */
- "ICMP Timestamp Request", /* 13 */
- "ICMP Timestamp Reply", /* 14 */
- "ICMP Information Request", /* 15 */
- "ICMP Information Reply", /* 16 */
- "ICMP Mask Request", /* 17 */
- "ICMP Mask Reply" /* 18 */
- };
- char *icmp_unreach_str[16] = {
- "ICMP Network Unreachable", /* 0 */
- "ICMP Host Unreachable", /* 1 */
- "ICMP Protocol Unreachable", /* 2 */
- "ICMP Port Unreachable", /* 3 */
- "ICMP Unreachable (Fragmentation Needed)", /* 4 */
- "ICMP Unreachable (Source Route Failed)" /* 5 */
- "ICMP Unreachable (Destination Network Unknown)", /* 6 */
- "ICMP Unreachable (Destination Host Unknown)", /* 7 */
- "ICMP Unreachable (Source Host Isolated)", /* 8 */
- "ICMP Unreachable (Communication with Network Prohibited)", /* 9 */
- "ICMP Unreachable (Communication with Host Prohibited)", /* 10 */
- "ICMP Unreachable (Network Unreachable For Type Of Service)", /* 11 */
- "ICMP Unreachable (Host Unreachable For Type Of Service)", /* 12 */
- "ICMP Unreachable (Communication Administratively Prohibited)", /* 13 */
- "ICMP Unreachable (Host Precedence Violation)", /* 14 */
- "ICMP Unreachable (Precedence cutoff in effect)" /* 15 */
- };
- #define ICMP_UNREACH_MAXTYPE 15
-
- /* entry used to keep track of each host we are pinging */
-
- typedef struct host_entry {
- struct host_entry *prev,*next; /* doubly linked list */
- int i; /* index into array */
- char *name; /* name as given by user */
- char *host; /* text description of host */
- char *pad; /* pad to align print names */
- struct sockaddr_in saddr; /* internet address */
- int timeout; /* time to wait for response */
- u_char running; /* unset when through sending */
- u_char waiting; /* waiting for response */
- struct timeval last_send_time; /* time of last packet sent */
- int num_sent; /* number of ping packets sent */
- int num_recv; /* number of pings received */
- int max_reply; /* longest response time */
- int min_reply; /* shortest response time */
- int total_time; /* sum of response times */
- int num_sent_i; /* number of ping packets sent */
- int num_recv_i; /* number of pings received */
- int max_reply_i; /* longest response time */
- int min_reply_i; /* shortest response time */
- int total_time_i; /* sum of response times */
- int *resp_times; /* individual response times */
- #ifdef DEBUG
- int *sent_times; /* per-sent-ping timestamp */
- #endif
- } HOST_ENTRY;
-
- /* globals */
-
- HOST_ENTRY *rrlist=NULL; /* linked list of hosts be pinged */
- HOST_ENTRY **table=NULL; /* array of pointers to items in the list */
- HOST_ENTRY *cursor;
-
- char *prog;
- int ident; /* our pid */
- int s; /* socket */
- u_int debugging = 0;
-
- /* times get *100 because all times are calculated in 10 usec units, not ms */
- u_int retry = DEFAULT_RETRY;
- u_int timeout = DEFAULT_TIMEOUT * 100;
- u_int interval = DEFAULT_INTERVAL * 100;
- u_int perhost_interval = DEFAULT_PERHOST_INTERVAL * 100;
- float backoff = DEFAULT_BACKOFF_FACTOR;
- u_int select_time = DEFAULT_SELECT_TIME * 100;
- u_int ping_data_size = DEFAULT_PING_DATA_SIZE;
- u_int ping_pkt_size;
- u_int count = 1;
- u_int trials;
- u_int report_interval = 0;
-
- /* global stats */
- long max_reply=0;
- long min_reply=1000000;
- int total_replies=0;
- double sum_replies=0;
- int max_hostname_len = 0;
- int num_jobs=0; /* number of hosts still to do */
- int num_hosts; /* total number of hosts */
- int num_alive=0, /* total number alive */
- num_unreachable=0, /* total number unreachable */
- num_noaddress=0; /* total number of addresses not found */
- int num_timeout=0, /* number of times select timed out */
- num_pingsent=0, /* total pings sent */
- num_pingreceived=0, /* total pings received */
- num_othericmprcvd=0; /* total non-echo-reply ICMP received */
-
- struct timeval current_time; /* current time (pseudo) */
- struct timeval start_time;
- struct timeval end_time;
- struct timeval last_send_time; /* time last ping was sent */
- struct timeval last_report_time; /* time last report was printed */
- struct timezone tz;
-
- /* switches */
- int verbose_flag,quiet_flag,stats_flag,unreachable_flag,alive_flag;
- int elapsed_flag,version_flag,count_flag,loop_flag;
- int per_recv_flag,report_all_rtts_flag,name_flag,addr_flag,backoff_flag;
- int multif_flag;
- #ifdef DEBUG
- int randomly_lose_flag,sent_times_flag,trace_flag,print_per_system_flag;
- int lose_factor;
- #endif
-
- char *filename=NULL; /* file containing hosts to ping */
-
- /* forward declarations */
-
- #ifdef _NO_PROTO
-
- void add_name();
- void add_addr();
- char *na_cat();
- char *cpystr();
- void crash_and_burn();
- void errno_crash_and_burn();
- char *get_host_by_address();
- int in_cksum();
- void u_sleep();
- int recvfrom_wto ();
- void remove_job();
- void send_ping();
- void usage();
- int wait_for_reply();
- long timeval_diff();
- void print_per_system_stats();
- void print_per_system_splits();
- void print_global_stats();
- void finish();
- int handle_random_icmp();
- char *sprint_tm();
-
- #else
-
- void add_name(char *name);
- void add_addr(char *name, char *host, struct in_addr ipaddr);
- char *na_cat(char *name, struct in_addr ipaddr);
- char *cpystr(char *string);
- void crash_and_burn(char *message);
- void errno_crash_and_burn(char *message);
- char *get_host_by_address(struct in_addr in);
- int in_cksum(u_short *p, int n);
- void u_sleep(int u_sec);
- int recvfrom_wto (int s, char *buf, int len, struct sockaddr *saddr, int timo);
- void remove_job(HOST_ENTRY *h);
- void send_ping(int s,HOST_ENTRY *h);
- long timeval_diff(struct timeval *a,struct timeval *b);
- void usage();
- int wait_for_reply();
- void print_per_system_stats();
- void print_per_system_splits();
- void print_global_stats();
- void finish();
- int handle_random_icmp(struct icmp *p, int psize, struct sockaddr_in *addr);
- char *sprint_tm(int t);
-
- #endif
-
- #ifdef _NO_PROTO
- int main(argc,argv)
- int argc; char **argv;
- #else
- int main(int argc, char **argv)
- #endif
- {
-
- int c, i, n;
- u_int lt, ht;
- int advance;
- struct protoent *proto;
- char *buf;
-
- /* check if we are root */
-
- if (geteuid()) {
- fprintf(stderr,
- "This program can only be run by root, or it must be setuid root.\n");
- exit(3);
- }
-
- if ((proto = getprotobyname("icmp")) == NULL)
- crash_and_burn("icmp: unknown protocol");
- s = socket(AF_INET, SOCK_RAW, proto->p_proto);
- if (s<0) errno_crash_and_burn("can't create raw socket");
-
- /*seteuid(getuid());*/
-
- prog = argv[0];
- ident = getpid() & 0xFFFF;
-
- verbose_flag = 1;
- backoff_flag = 1;
-
- opterr = 1;
-
- while ((c = getopt(argc, argv,
- "edhlmnqusaAvz:t:i:p:f:r:c:b:C:Q:B:")) != EOF) {
- switch (c) {
- case 't': if (!(timeout = (u_int)atoi(optarg)*10))
- usage(); break;
- case 'r': if (!(retry = (u_int)atoi(optarg)))
- usage(); break;
- case 'i': if (!(interval = (u_int)atoi(optarg)*10))
- usage(); break;
- case 'p': if (!(perhost_interval = (u_int)atoi(optarg)*10))
- usage(); break;
- case 'c': if (!(count = (u_int)atoi(optarg)))
- usage();
- count_flag = 1; break;
- case 'C': if (!(count = (u_int)atoi(optarg)))
- usage();
- count_flag = 1;
- report_all_rtts_flag = 1; break;
- case 'b': if(!(ping_data_size = (u_int)atoi(optarg)))
- usage(); break;
- case 'h': usage(); break;
- case 'q': verbose_flag = 0; quiet_flag = 1; break;
- case 'Q': verbose_flag = 0; quiet_flag = 1;
- if (!(report_interval = (u_int)atoi(optarg) *100000))
- usage(); break;
- case 'e': elapsed_flag = 1; break;
- case 'd':
- case 'm': multif_flag = 1; break;
- case 'n': name_flag = 1; break;
- case 'A': addr_flag = 1; break;
- case 'B': if (!(backoff = atof(optarg)))
- usage(); break;
- case 's': stats_flag = 1; break;
- case 'l': loop_flag = 1; backoff_flag = 0; break;
- case 'u': unreachable_flag = 1; break;
- case 'a': alive_flag = 1; break;
- #ifdef DEBUG
- case 'z': if (!(debugging = (u_int)atoi(optarg)))
- usage(); break;
- #endif
- case 'v':
- printf("%s: Version %s $Date: 1997/01/08 20:29:33 $\n",argv[0], VERSION);
- printf("%s: comments to fping@networking.Stanford.EDU\n",argv[0]);
- exit(0);
- case 'f':
- #ifdef ENABLE_F_OPTION
- filename= optarg; break;
- #else
- if (getuid()) {
- printf("%s: this option can only be used by root.\n",argv[0]);
- printf("%s: fping will read from stdin by default.\n",argv[0]);
- exit(3);
- } else {
- filename= optarg;
- break;
- }
- #endif
- default : usage(); break;
- }
- }
-
- /* muck about based on various option settings */
-
- if (unreachable_flag && alive_flag) {
- fprintf(stderr,"%s: specify only one of a, u\n",argv[0]);
- usage();
- }
-
- if (count_flag && loop_flag) {
- fprintf(stderr, "%s: specify only one of c, l\n", argv[0]);
- usage();
- }
-
- if ( (interval < MIN_INTERVAL * 10 ||
- perhost_interval < MIN_PERHOST_INTERVAL * 10 ||
- retry > MAX_RETRY ||
- timeout < MIN_TIMEOUT * 10)
- && getuid() ) {
- fprintf(stderr,"%s: these options are too risky for mere mortals.\n",prog);
- fprintf(stderr,
- "%s: You need i >= %u, p >= %u, r < %u, and t >= %u\n",
- prog, MIN_INTERVAL, MIN_PERHOST_INTERVAL,
- MAX_RETRY, MIN_TIMEOUT);
- usage();
- }
-
- if ((ping_data_size > MAX_PING_DATA) ||
- (ping_data_size < MIN_PING_DATA)) {
- fprintf(stderr,
- "%s: data size %u not valid, must be between %u and %u\n",
- prog, ping_data_size, MIN_PING_DATA, MAX_PING_DATA);
- usage();
- }
-
- if ((backoff > MAX_BACKOFF_FACTOR) ||
- (backoff < MIN_BACKOFF_FACTOR)) {
- fprintf(stderr,
- "%s: backoff factor %.1f not valid, must be between %.1f and %.1f\n",
- prog, backoff, MIN_BACKOFF_FACTOR, MAX_BACKOFF_FACTOR);
- usage();
- }
-
- if (count > MAX_COUNT) {
- fprintf(stderr,
- "%s: count %u not valid, must be less than %u\n",
- prog, count, MAX_COUNT);
- usage();
- }
-
- if (alive_flag || unreachable_flag) verbose_flag=0;
- if (count_flag) {
- if (verbose_flag)
- per_recv_flag = 1;
- alive_flag = unreachable_flag = verbose_flag = 0;
- }
- if (loop_flag) {
- if (!report_interval)
- per_recv_flag = 1;
- alive_flag = unreachable_flag = verbose_flag = 0;
- }
-
- trials = (count > retry+1) ? count : retry+1;
-
- #ifdef DEBUG
- if (debugging & DBG_TRACE)
- trace_flag = 1;
- if ((debugging & DBG_SENT_TIMES) && !loop_flag)
- sent_times_flag = 1;
- if (debugging & DBG_RANDOM_LOSE_FEW) {
- randomly_lose_flag = 1;
- lose_factor = 1; /* ie, 1/4 */
- }
- if (debugging & DBG_RANDOM_LOSE_MANY) {
- randomly_lose_flag = 1;
- lose_factor = 5; /* ie, 3/4 */
- }
- if (debugging & DBG_PRINT_PER_SYSTEM)
- print_per_system_flag = 1;
- if ((debugging & DBG_REPORT_ALL_RTTS) && !loop_flag)
- report_all_rtts_flag = 1;
-
- if (trace_flag) {
- fprintf(stderr, "%s:\n count: %u, retry: %u, interval: %u\n",
- prog, count, retry, interval/10);
- fprintf(stderr, " perhost_interval: %u, timeout: %u\n",
- perhost_interval/10, timeout/10);
- fprintf(stderr, " ping_data_size = %u, trials = %u\n",
- ping_data_size, trials);
- if (verbose_flag) fprintf(stderr, " verbose_flag set\n");
- if (multif_flag) fprintf(stderr, " multif_flag set\n");
- if (name_flag) fprintf(stderr, " name_flag set\n");
- if (addr_flag) fprintf(stderr, " addr_flag set\n");
- if (stats_flag) fprintf(stderr, " stats_flag set\n");
- if (unreachable_flag) fprintf(stderr, " unreachable_flag set\n");
- if (alive_flag) fprintf(stderr, " alive_flag set\n");
- if (elapsed_flag) fprintf(stderr, " elapsed_flag set\n");
- if (version_flag) fprintf(stderr, " version_flag set\n");
- if (count_flag) fprintf(stderr, " count_flag set\n");
- if (loop_flag) fprintf(stderr, " loop_flag set\n");
- if (backoff_flag) fprintf(stderr, " backoff_flag set\n");
- if (per_recv_flag) fprintf(stderr, " per_recv_flag set\n");
- if (report_all_rtts_flag) fprintf(stderr, " report_all_rtts_flag set\n");
- if (randomly_lose_flag) fprintf(stderr, " randomly_lose_flag set\n");
- if (sent_times_flag) fprintf(stderr, " sent_times_flag set\n");
- if (print_per_system_flag) fprintf(stderr, " print_per_system_flag set\n");
- }
- #endif
-
- /* handle host names supplied on command line or in a file */
-
- argv = &argv[optind];
- if (*argv && filename) { usage(); }
- if (!*argv && !filename) { filename = "-"; }
-
- if (*argv) while (*argv) {
- add_name(*argv);
- ++argv;
- } else if (filename) {
- FILE *ping_file;
- char line[132];
- char host[132],*p;
- if (strcmp(filename,"-")==0) {
- ping_file=fdopen(0,"r");
- } else {
- ping_file=fopen(filename,"r");
- }
- if (!ping_file) errno_crash_and_burn("fopen");
- while(fgets(line,132,ping_file)) {
- if (sscanf(line,"%s",host) != 1)
- continue;
- if ((!*host) || (host[0]=='#')) /* magic to avoid comments */
- continue;
- p = cpystr(host);
- add_name(p);
- }
- fclose(ping_file);
- } else usage();
-
- if (!num_hosts) exit(2);
-
- /* allocate array to hold outstanding ping requests */
-
- table = (HOST_ENTRY **) malloc(sizeof(HOST_ENTRY *)*num_hosts);
- if (!table) crash_and_burn("Can't malloc array of hosts");
-
- cursor=rrlist;
-
- for( num_jobs=0; num_jobs < num_hosts; num_jobs++ ) {
- table[num_jobs]=cursor;
- cursor->i = num_jobs;
- /* as long as we're here, put this in so names print out nicely */
- if (count_flag || loop_flag) {
- n = max_hostname_len - strlen(cursor->host);
- buf = (char *) malloc(n + 1);
- if (!buf) crash_and_burn("can't malloc host pad");
- for (i = 0; i < n; i++)
- buf[i] = ' ';
- buf[n] = '\0';
- cursor->pad = buf;
- }
- cursor=cursor->next;
- }
-
- ping_pkt_size = ping_data_size + SIZE_ICMP_HDR;
- signal(SIGINT, finish);
- gettimeofday(&start_time,&tz);
- current_time = start_time;
- if (report_interval)
- last_report_time = start_time;
- last_send_time.tv_sec = current_time.tv_sec - 10000;
- #ifdef DEBUG
- if (randomly_lose_flag)
- srandom(start_time.tv_usec);
- #endif
- cursor=rrlist;
- advance = 0;
-
- /* main loop */
- while (num_jobs) {
- if (num_pingsent)
- while(wait_for_reply()) { /* call wfr until we timeout */
- /* wait! */
- };
- if (cursor && advance) cursor = cursor->next;
- gettimeofday(¤t_time,&tz);
- lt = timeval_diff(¤t_time, &last_send_time);
- ht = timeval_diff(¤t_time, &cursor->last_send_time);
- if (report_interval &&
- (loop_flag || count_flag) &&
- (timeval_diff(¤t_time, &last_report_time)
- > report_interval)) {
- print_per_system_splits();
- gettimeofday(¤t_time,&tz);
- lt = timeval_diff(¤t_time, &last_send_time);
- ht = timeval_diff(¤t_time, &cursor->last_send_time);
- last_report_time = current_time;
- }
-
- advance = 1;
- #ifdef DEBUG
- if (trace_flag)
- printf(
- "main loop:\n [%s, wait/run/sent/recv/timeout = %u/%u/%u/%u/%u], jobs/lt/ht = %u/%u/%u\n",
- cursor->host, cursor->waiting, cursor->running, cursor->num_sent,
- cursor->num_recv, cursor->timeout, num_jobs, lt, ht);
- #endif
- /* if it's OK to send while counting or looping or starting */
- if ((lt > interval) && (ht > perhost_interval)) {
- /* send if starting or looping */
- if ((cursor->num_sent == 0) || loop_flag) {
- send_ping(s, cursor);
- continue;
- }
- /* send if counting and count not exceeded */
- if (count_flag) {
- if (cursor->num_sent < count) {
- send_ping(s,cursor);
- continue;
- }
- }
- }
- /* is-it-alive mode, and timeout exceeded while waiting for a reply */
- /* and we haven't exceeded our retries */
- if ((lt > interval) && !count_flag && !loop_flag &&
- !cursor->num_recv &&
- (ht > cursor->timeout) &&
- (cursor->waiting < retry+1)) {
- #ifdef DEBUG
- if (trace_flag)
- printf("main loop: timeout for %s\n", cursor->host);
- #endif
- num_timeout++;
- /* try again */
- if (backoff_flag)
- cursor->timeout *= backoff;
- send_ping(s,cursor);
- continue;
- }
- /* didn't send, can we remove? */
- #ifdef DEBUG
- if (trace_flag)
- printf("main loop: didn't send to %s\n", cursor->host);
- #endif
- /* never remove if looping */
- if (loop_flag)
- continue;
- /* remove if counting and count exceeded */
- /* but allow time for the last one to come in */
- if (count_flag) {
- if ((cursor->num_sent >= count) &&
- (ht > cursor->timeout)) {
- remove_job(cursor);
- continue;
- }
- } else {
- /* normal mode, and we got one */
- if (cursor->num_recv) {
- remove_job(cursor);
- continue;
- }
- /* normal mode, and timeout exceeded while waiting for a reply */
- /* and we've run out of retries, so node is unreachable */
- if ((ht > cursor->timeout) &&
- (cursor->waiting >= retry+1)) {
- #ifdef DEBUG
- if (trace_flag)
- printf("main loop: timeout for %s\n", cursor->host);
- #endif
- num_timeout++;
- remove_job(cursor);
- continue;
- }
- }
- /* could send to this host, so keep considering it */
- if (ht > interval)
- advance = 0;
- }
- finish();
- }
-
- #ifdef _NO_PROTO
- void finish()
- #else
- void finish()
- #endif
- {
- int i;
- HOST_ENTRY *h;
-
- gettimeofday(&end_time,&tz);
-
- /* tot up unreachables */
- for (i = 0; i < num_hosts; i++) {
- h = table[i];
- if (!h->num_recv) {
- num_unreachable++;
- if(verbose_flag || unreachable_flag) {
- printf("%s", h->host);
- if (verbose_flag)
- printf(" is unreachable");
- printf("\n");
- }
- }
- }
-
- if (count_flag || loop_flag) {
- print_per_system_stats();
- }
- #ifdef DEBUG
- else if (print_per_system_flag)
- print_per_system_stats();
- #endif
-
- if (stats_flag)
- print_global_stats();
-
- if (num_noaddress) exit(2);
- else if (num_alive != num_hosts) exit(1);
-
- exit(0);
-
- }
-
- #ifdef _NO_PROTO
- void print_per_system_stats ()
- #else
- void print_per_system_stats ()
- #endif
- {
- int i, j, k, avg;
- HOST_ENTRY *h;
- char *buf;
- int bufsize;
- int resp;
-
- bufsize = max_hostname_len + 1;
- buf = (char *) malloc(bufsize);
- if (!buf) crash_and_burn("can't malloc print buf");
- memset(buf, 0, bufsize);
-
- fflush(stdout);
- if (verbose_flag || per_recv_flag) fprintf(stderr,"\n");
- for (i = 0; i < num_hosts; i++) {
- h = table[i];
- fprintf(stderr, "%s%s :", h->host, h->pad);
- if (report_all_rtts_flag) {
- for (j = 0; j < h->num_sent; j++)
- if ((resp = h->resp_times[j]) >= 0)
- fprintf(stderr, " %d.%d", resp/10, resp%10);
- else fprintf(stderr, " -");
- fprintf(stderr, "\n");
- } else {
- if (h->num_recv <= h->num_sent) {
- fprintf(stderr, " xmt/rcv/%%loss = %d/%d/%d%%",
- h->num_sent, h->num_recv,
- ((h->num_sent - h->num_recv) * 100) / h->num_sent);
- } else {
- fprintf(stderr, " xmt/rcv/%%return = %d/%d/%d%%",
- h->num_sent, h->num_recv,
- ((h->num_recv * 100) / h->num_sent));
- }
- if (h->num_recv) {
- avg = h->total_time / h->num_recv;
- fprintf(stderr, ", min/avg/max = %s", sprint_tm(h->min_reply));
- fprintf(stderr, "/%s", sprint_tm(avg));
- fprintf(stderr, "/%s", sprint_tm(h->max_reply));
- }
- fprintf(stderr, "\n");
- }
- #ifdef DEBUG
- if (sent_times_flag) {
- for (j = 0; j < h->num_sent; j++)
- if ((resp = h->sent_times[j]) >= 0)
- fprintf(stderr, " %s", sprint_tm(resp));
- else fprintf(stderr, " -");
- fprintf(stderr, "\n");
- }
- #endif
- }
- free(buf);
- }
-
-
- #ifdef _NO_PROTO
- void print_per_system_splits ()
- #else
- void print_per_system_splits ()
- #endif
- {
- int i, j, k, avg;
- HOST_ENTRY *h;
- char *buf;
- int bufsize;
- int resp;
- struct tm *curr_tm;
-
- bufsize = max_hostname_len + 1;
- buf = (char *) malloc(bufsize);
- if (!buf) crash_and_burn("can't malloc print buf");
- memset(buf, 0, bufsize);
-
- fflush(stdout);
- if (verbose_flag || per_recv_flag) fprintf(stderr,"\n");
- curr_tm = localtime((time_t *)¤t_time.tv_sec);
- fprintf(stderr, "[%2.2d:%2.2d:%2.2d]\n", curr_tm->tm_hour,
- curr_tm->tm_min, curr_tm->tm_sec);
- for (i = 0; i < num_hosts; i++) {
- h = table[i];
- fprintf(stderr, "%s%s :", h->host, h->pad);
- if (h->num_recv_i <= h->num_sent_i) {
- fprintf(stderr, " xmt/rcv/%%loss = %d/%d/%d%%",
- h->num_sent_i, h->num_recv_i,
- ((h->num_sent_i - h->num_recv_i) * 100) / h->num_sent_i);
- } else {
- fprintf(stderr, " xmt/rcv/%%return = %d/%d/%d%%",
- h->num_sent_i, h->num_recv_i,
- ((h->num_recv_i * 100) / h->num_sent_i));
- }
- if (h->num_recv_i) {
- avg = h->total_time_i / h->num_recv_i;
- fprintf(stderr, ", min/avg/max = %s", sprint_tm(h->min_reply_i));
- fprintf(stderr, "/%s", sprint_tm(avg));
- fprintf(stderr, "/%s", sprint_tm(h->max_reply_i));
- }
- fprintf(stderr, "\n");
- h->num_sent_i = h->num_recv_i = h->max_reply_i = h->min_reply_i =
- h->total_time_i = 0;
- }
- free(buf);
- }
-
- #ifdef _NO_PROTO
- void print_global_stats()
- #else
- void print_global_stats()
- #endif
- {
- fflush(stdout);
- fprintf(stderr,"\n");
- fprintf(stderr," %7d targets\n",num_hosts);
- fprintf(stderr," %7d alive\n",num_alive);
- fprintf(stderr," %7d unreachable\n",num_unreachable);
- fprintf(stderr," %7d unknown addresses\n",num_noaddress);
- fprintf(stderr,"\n");
- fprintf(stderr," %7d timeouts (waiting for response)\n",num_timeout);
- fprintf(stderr," %7d ICMP Echos sent\n",num_pingsent);
- fprintf(stderr," %7d ICMP Echo Replies received\n",num_pingreceived);
- fprintf(stderr," %7d other ICMP received\n",num_othericmprcvd);
- fprintf(stderr,"\n");
-
- if (total_replies==0) {
- min_reply=0; max_reply=0; total_replies=1; sum_replies=0;
- }
-
- fprintf(stderr," %s ms (min round trip time)\n", sprint_tm(min_reply));
- fprintf(stderr," %s ms (avg round trip time)\n",
- sprint_tm((int)(sum_replies/total_replies)));
- fprintf(stderr," %s ms (max round trip time)\n", sprint_tm(max_reply));
- fprintf(stderr," %12.3f sec (elapsed real time)\n",
- timeval_diff( &end_time,&start_time)/100000.0);
- fprintf(stderr,"\n");
- }
-
- /*
- *
- * Compose and transmit an ICMP_ECHO REQUEST packet. The IP packet
- * will be added on by the kernel. The ID field is our UNIX process ID,
- * and the sequence number is an index into an array of outstanding
- * ping requests. The sequence number will later be used to quickly
- * figure out who the ping reply came from.
- *
- */
-
- #ifdef _NO_PROTO
- void send_ping(s,h)
- int s; HOST_ENTRY *h;
- #else
- void send_ping(int s,HOST_ENTRY *h)
- #endif
- {
- char *buffer;
- struct icmp *icp;
- PING_DATA *pdp;
- int n;
-
- buffer = (char *) malloc ((size_t)ping_pkt_size);
- if (!buffer) crash_and_burn("can't malloc ping packet");
- memset(buffer, 0, ping_pkt_size * sizeof(char));
- icp = (struct icmp *) buffer;
-
- gettimeofday(&h->last_send_time,&tz);
- icp->icmp_type = ICMP_ECHO;
- icp->icmp_code = 0;
- icp->icmp_cksum = 0;
- icp->icmp_seq = h->i;
- icp->icmp_id = ident;
-
- pdp = (PING_DATA *) (buffer + SIZE_ICMP_HDR);
- pdp->ping_ts = h->last_send_time;
- pdp->ping_count = h->num_sent;
-
- icp->icmp_cksum = in_cksum( (u_short *)icp, ping_pkt_size );
-
- #ifdef DEBUG
- if (trace_flag)
- printf("sending [%d] to %s\n", h->num_sent, h->host);
- #endif
- n = sendto( s, buffer, ping_pkt_size, 0, (struct sockaddr *)&h->saddr,
- sizeof(struct sockaddr_in) );
- if( n < 0 || n != ping_pkt_size ) {
- if (verbose_flag || unreachable_flag) {
- printf("%s", h->host);
- if (verbose_flag) printf(" error while sending ping: %s\n",
- sys_errlist[errno]);
- printf("\n");
- }
- num_unreachable++;
- remove_job(h);
- } else {
- /* mark this trial as outstanding */
- if (!loop_flag)
- h->resp_times[h->num_sent] = RESP_WAITING;
- #ifdef DEBUG
- if (sent_times_flag)
- h->sent_times[h->num_sent] =
- timeval_diff(&h->last_send_time, &start_time);
- #endif
- h->num_sent++; h->num_sent_i++;
- h->waiting++;
- num_pingsent++;
- last_send_time = h->last_send_time;
- }
- free(buffer);
- }
-
- #ifdef _NO_PROTO
- int wait_for_reply()
- #else
- int wait_for_reply()
- #endif
- {
- int result;
- static char buffer[4096];
- struct sockaddr_in response_addr;
- struct ip *ip;
- int hlen;
- struct icmp *icp;
- int n, avg;
- HOST_ENTRY *h;
- PING_DATA *pdp;
- long this_reply;
- int this_count;
- struct timeval sent_time;
-
- result=recvfrom_wto(s,buffer,4096,
- (struct sockaddr *)&response_addr,select_time);
- if (result<0) { return 0; } /* timeout */
-
- #ifdef DEBUG
- if (randomly_lose_flag)
- if ((random() & 0x07) <= lose_factor)
- return 0;
- #endif
- ip = (struct ip *) buffer;
- #if defined(__alpha__) && __STDC__
- /* The alpha headers are decidedly broken.
- * Using an ANSI compiler, it provides ip_vhl instead of ip_hl and
- * ip_v. So, to get ip_hl, we mask off the bottom four bits.
- */
- hlen = (ip->ip_vhl & 0x0F) << 2;
- #else
- hlen = ip->ip_hl << 2;
- #endif
-
- if (result < hlen+ICMP_MINLEN) {
- if (verbose_flag)
- printf("received packet too short for ICMP (%d bytes from %s)\n",
- result, inet_ntoa(response_addr.sin_addr));
- return(1); /* too short */
- }
-
- icp = (struct icmp *)(buffer + hlen);
- if (icp->icmp_type != ICMP_ECHOREPLY) {
- /* handle some problem */
- if (handle_random_icmp(icp, result, &response_addr))
- num_othericmprcvd++;
- return 1;
- }
-
- if (icp->icmp_id != ident)
- return 1; /* packet received, but not the one we are looking for! */
-
- num_pingreceived++;
-
- if (icp->icmp_seq >= (n_short)num_hosts)
- return(1); /* packet received, don't worry about it anymore */
-
- n=icp->icmp_seq;
- h=table[n];
-
- /* received ping is cool, so process it */
- gettimeofday(¤t_time,&tz);
- h->waiting = 0;
- h->timeout = timeout;
- h->num_recv++; h->num_recv_i++;
-
- pdp = (PING_DATA *)icp->icmp_data;
- sent_time = pdp->ping_ts;
- this_count = pdp->ping_count;
- #ifdef DEBUG
- if (trace_flag)
- printf("received [%d] from %s\n", this_count, h->host);
- #endif
- this_reply = timeval_diff(¤t_time,&sent_time);
- if (this_reply > max_reply) max_reply=this_reply;
- if (this_reply < min_reply) min_reply=this_reply;
- if (this_reply > h->max_reply) h->max_reply=this_reply;
- if (this_reply < h->min_reply) h->min_reply=this_reply;
- if (this_reply > h->max_reply_i) h->max_reply_i=this_reply;
- if (this_reply < h->min_reply_i) h->min_reply_i=this_reply;
- sum_replies += this_reply;
- h->total_time += this_reply;
- h->total_time_i += this_reply;
- total_replies++;
- /* note reply time in array, probably */
- if (!loop_flag) {
- if ((this_count >= 0) && (this_count < trials)) {
- if (h->resp_times[this_count] != RESP_WAITING) {
- if (!per_recv_flag) {
- fprintf(stderr,
- "%s : duplicate for [%d], %d bytes, %s ms",
- h->host, this_count, result,
- sprint_tm(this_reply));
- if (response_addr.sin_addr.s_addr != h->saddr.sin_addr.s_addr)
- fprintf(stderr, " [<- %s]", inet_ntoa(response_addr.sin_addr));
- fprintf(stderr, "\n");
- }
- } else {
- h->resp_times[this_count] = this_reply;
- }
- } else {
- /* count is out of bounds?? */
- fprintf(stderr,
- "%s : duplicate for [%d], %d bytes, %s ms\n",
- h->host, this_count, result,
- sprint_tm(this_reply));
- }
- }
-
- if (h->num_recv == 1) {
- num_alive++;
- if(verbose_flag||alive_flag) {
- printf("%s",h->host);
- if (verbose_flag) printf(" is alive");
- if (elapsed_flag) printf(" (%s ms)", sprint_tm(this_reply));
- if (response_addr.sin_addr.s_addr != h->saddr.sin_addr.s_addr)
- printf(" [<- %s]", inet_ntoa(response_addr.sin_addr));
- printf("\n");
- }
- }
-
- if (per_recv_flag) {
- avg = h->total_time / h->num_recv;
- printf("%s%s : [%d], %d bytes, %s ms",
- h->host, h->pad,
- this_count,
- result,
- sprint_tm(this_reply));
- printf(" (%s avg, ", sprint_tm(avg));
- if (h->num_recv <= h->num_sent) {
- printf("%d%% loss)",
- ((h->num_sent - h->num_recv) * 100)
- / h->num_sent);
- } else {
- printf("%d%% return)",
- (h->num_recv * 100)
- / h->num_sent);
- }
- if (response_addr.sin_addr.s_addr != h->saddr.sin_addr.s_addr)
- printf(" [<- %s]", inet_ntoa(response_addr.sin_addr));
- printf("\n");
- }
- return num_jobs;
- }
-
- #ifdef _NO_PROTO
- int handle_random_icmp(p, psize, addr)
- struct icmp *p;
- int psize;
- struct sockaddr_in *addr;
- #else
- int handle_random_icmp(struct icmp *p, int psize, struct sockaddr_in *addr)
- #endif
- {
- struct icmp *sent_icmp;
- struct ip *sent_ip;
- u_char *c;
- HOST_ENTRY *h;
-
- c = (u_char *)p;
- switch (p->icmp_type) {
- case ICMP_UNREACH:
- sent_icmp = (struct icmp *) (c + 28);
- if ((sent_icmp->icmp_type == ICMP_ECHO) &&
- (sent_icmp->icmp_id == ident) &&
- (sent_icmp->icmp_seq < (n_short)num_hosts)) {
- /* this is a response to a ping we sent */
- h = table[sent_icmp->icmp_seq];
- if (p->icmp_code > ICMP_UNREACH_MAXTYPE) {
- fprintf(stderr,
- "ICMP Unreachable (Invalid Code) from %s for ICMP Echo sent to %s",
- inet_ntoa(addr->sin_addr), h->host); }
- else {
- fprintf(stderr, "%s from %s for ICMP Echo sent to %s",
- icmp_unreach_str[p->icmp_code],
- inet_ntoa(addr->sin_addr), h->host);
- }
- if (inet_addr(h->host) == -1)
- fprintf(stderr, " (%s)", inet_ntoa(h->saddr.sin_addr));
- fprintf(stderr, "\n");
- }
- return 1;
- case ICMP_SOURCEQUENCH:
- case ICMP_REDIRECT:
- case ICMP_TIMXCEED:
- case ICMP_PARAMPROB:
- sent_icmp = (struct icmp *) (c + 28);
- if ((sent_icmp->icmp_type = ICMP_ECHO) &&
- (sent_icmp->icmp_id = ident) &&
- (sent_icmp->icmp_seq < (n_short)num_hosts)) {
- /* this is a response to a ping we sent */
- h = table[sent_icmp->icmp_seq];
- fprintf(stderr, "%s from %s for ICMP Echo sent to %s",
- icmp_type_str[p->icmp_type],
- inet_ntoa(addr->sin_addr), h->host);
- if (inet_addr(h->host) == -1)
- fprintf(stderr, " (%s)", inet_ntoa(h->saddr.sin_addr));
- fprintf(stderr, "\n");
- }
- return 2;
- /* no way to tell whether any of these are sent due to our ping */
- /* or not (shouldn't be, of course), so just discard */
- case ICMP_TSTAMP:
- case ICMP_TSTAMPREPLY:
- case ICMP_IREQ:
- case ICMP_IREQREPLY:
- case ICMP_MASKREQ:
- case ICMP_MASKREPLY:
- default:
- return 0;
- }
- }
-
- /*
- * Checksum routine for Internet Protocol family headers (C Version)
- * From ping examples in W.Richard Stevens "UNIX NETWORK PROGRAMMING" book.
- */
-
- #ifdef _NO_PROTO
- int in_cksum(p,n)
- u_short *p; int n;
- #else
- int in_cksum(u_short *p, int n)
- #endif
- {
- register u_short answer;
- register long sum = 0;
- u_short odd_byte = 0;
-
- while( n > 1 ) { sum += *p++; n -= 2; }
-
- /* mop up an odd byte, if necessary */
- if( n == 1 ) {
- *(u_char *)(&odd_byte) = *(u_char *)p;
- sum += odd_byte;
- }
-
- sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
- sum += (sum >> 16); /* add carry */
- answer = ~sum; /* ones-complement, truncate*/
- return (answer);
- }
-
-
- /* process input name for addition to target list */
- /* name can turn into multiple targets via multiple interfaces (-m) */
- /* or via NIS groups */
-
- #ifdef _NO_PROTO
- void add_name(name)
- char *name;
- #else
- void add_name(char *name)
- #endif
- {
- struct hostent *host_ent;
- u_int ipaddress;
- struct in_addr *ipa = (struct in_addr *)&ipaddress;
- struct in_addr *host_add;
- char *nm;
- int i = 0;
-
- if ((ipaddress = inet_addr(name)) != -1) {
- /* input name is an IP addr, go with it */
- if (name_flag) {
- if (addr_flag) {
- add_addr(name, na_cat(get_host_by_address(*ipa), *ipa), *ipa);
- } else {
- nm = cpystr(get_host_by_address(*ipa));
- add_addr(name, nm, *ipa);
- }
- } else {
- add_addr(name, name, *ipa);
- }
- return;
- }
- /* input name is not an IP addr, maybe it's a host name */
- host_ent = gethostbyname(name);
- if (host_ent == NULL) {
- if (h_errno == TRY_AGAIN) {
- u_sleep(DNS_TIMEOUT) ;
- host_ent = gethostbyname(name) ;
- }
- if (host_ent == NULL) {
- #ifdef NIS_GROUPS
- /* maybe it's the name of a NIS netgroup */
- char *machine, *user_ignored, *domain_ignored;
- setnetgrent(name);
- if (getnetgrent(&machine, &user_ignored, &domain_ignored)==0){
- endnetgrent();
- if (!quiet_flag) fprintf(stderr,"%s address not found\n", name);
- num_noaddress++;
- return;
- } else {
- add_name(cpystr(machine));
- }
- while(getnetgrent(&machine, &user_ignored, &domain_ignored))
- add_name(cpystr(machine));
- endnetgrent();
- return;
- #else
- if (!quiet_flag) fprintf(stderr,"%s address not found\n", name);
- num_noaddress++;
- return ;
- #endif
- }
- }
- host_add = (struct in_addr *) *(host_ent->h_addr_list) ;
- if (host_add == NULL) {
- if (!quiet_flag) fprintf(stderr,"%s has no address data\n", name);
- num_noaddress++;
- return ;
- } else {
- /* it is indeed a hostname with a real address */
- while (host_add) {
- if (name_flag && addr_flag) {
- add_addr(name, na_cat(name, *host_add), *host_add);
- } else if (addr_flag) {
- nm = cpystr(inet_ntoa(*host_add));
- add_addr(name, nm, *host_add);
- } else {
- add_addr(name, name, *host_add);
- }
- if (!multif_flag) break;
- host_add = (struct in_addr *) (host_ent->h_addr_list[++i]) ;
- }
- }
- }
-
- #ifdef _NO_PROTO
- char *na_cat(name, ipaddr)
- char *name;
- struct in_addr ipaddr;
- #else
- char *na_cat(char *name, struct in_addr ipaddr)
- #endif
- {
- char *nm, *as;
-
- as = inet_ntoa(ipaddr);
- nm = (char *) malloc(strlen(name) + strlen(as) + 4);
- if (!nm) crash_and_burn("can't allocate some space for a string");
- strcpy(nm, name);
- strcat(nm, " (");
- strcat(nm, as);
- strcat(nm, ")");
- return(nm);
- }
-
- /* add address to linked list of targets to be pinged */
- /* assume memory for *name and *host is ours!!! */
-
- #ifdef _NO_PROTO
- void add_addr(name, host, ipaddr)
- char *name;
- char *host;
- struct in_addr ipaddr;
- #else
- void add_addr(char *name, char *host, struct in_addr ipaddr)
- #endif
- {
- HOST_ENTRY *p;
- int n, *i;
-
- p = (HOST_ENTRY *) malloc(sizeof(HOST_ENTRY));
- if (!p) crash_and_burn("can't allocate HOST_ENTRY");
- memset((char *) p, 0, sizeof(HOST_ENTRY));
-
- p->name = name;
- p->host = host;
- p->saddr.sin_family = AF_INET;
- p->saddr.sin_addr = ipaddr;
- p->timeout = timeout;
- p->running = 1;
- p->min_reply = 10000000;
-
- if (strlen(p->host) > max_hostname_len)
- max_hostname_len = strlen(p->host);
-
- /* array for response time results */
- if (!loop_flag) {
- i = (int *) malloc(trials * sizeof(int));
- if (!i) crash_and_burn("can't allocate resp_times array");
- for (n = 1; n < trials; n++)
- i[n] = RESP_UNUSED;
- p->resp_times = i;
- }
- #ifdef DEBUG
- /* likewise for sent times */
- if (sent_times_flag) {
- i = (int *) malloc(trials * sizeof(int));
- if (!i) crash_and_burn("can't allocate sent_times array");
- for (n = 1; n < trials; n++)
- i[n] = RESP_UNUSED;
- p->sent_times = i;
- }
- #endif
-
- if (!rrlist) {
- rrlist = p;
- p->next = p;
- p->prev = p;
- } else {
- p->next = rrlist;
- p->prev = rrlist->prev;
- p->prev->next = p;
- p->next->prev = p;
- }
- num_hosts++;
- }
-
- #ifdef _NO_PROTO
- void remove_job(h)
- HOST_ENTRY *h;
- #else
- void remove_job(HOST_ENTRY *h)
- #endif
- {
-
- #ifdef DEBUG
- if (trace_flag)
- printf("removing job for %s\n", h->host);
- #endif
- h->running = 0;
- h->waiting = 0;
- --num_jobs;
-
- if (num_jobs) { /* remove us from list of active jobs */
- h->prev->next = h->next;
- h->next->prev = h->prev;
- if (h==cursor) { cursor = h->next; }
- } else {
- cursor=NULL;
- rrlist=NULL;
- }
-
- }
-
- #ifdef _NO_PROTO
- char *get_host_by_address(in)
- struct in_addr in;
- #else
- char *get_host_by_address(struct in_addr in)
- #endif
- {
- struct hostent *h;
- h=gethostbyaddr((char *) &in,sizeof(struct in_addr),AF_INET);
- if (h==NULL || h->h_name==NULL) return inet_ntoa(in);
- else return (char*)h->h_name;
- }
-
-
- #ifdef _NO_PROTO
- char *cpystr(string)
- char *string;
- #else
- char *cpystr(char *string)
- #endif
- {
- char *dst;
-
- if (string) {
- dst = (char *) malloc (1+strlen (string));
- if (!dst) crash_and_burn("can't allocate some space for a string");
- strcpy (dst, string);
- return dst;
- }
- else
- return NULL;
- }
-
- #ifdef _NO_PROTO
- void crash_and_burn(message)
- char *message;
- #else
- void crash_and_burn(char *message)
- #endif
- {
- if (verbose_flag) fprintf(stderr,"%s: %s\n",prog,message);
- exit(4);
- }
-
- #ifdef _NO_PROTO
- void errno_crash_and_burn(message)
- char *message;
- #else
- void errno_crash_and_burn(char *message)
- #endif
- {
- if (verbose_flag)
- fprintf(stderr,"%s: %s : %s\n",prog,message,sys_errlist[errno]);
- exit(4);
- }
-
- /* timeval_diff now returns result in hundredths of milliseconds */
- /* ie, tens of microseconds */
- #ifdef _NO_PROTO
- long timeval_diff(a,b)
- struct timeval *a,*b;
- #else
- long timeval_diff(struct timeval *a,struct timeval *b)
- #endif
- {
- double temp;
-
- temp =
- (((a->tv_sec*1000000)+ a->tv_usec) -
- ((b->tv_sec*1000000)+ b->tv_usec))/10;
-
- return (long) temp;
-
- }
-
- /*
- * sprint_time: render time into a string with three digits of precision
- * input is in tens of microseconds
- */
-
- #ifdef _NO_PROTO
- char * sprint_tm(t)
- int t;
- #else
- char * sprint_tm(int t)
- #endif
- {
- static char buf[10];
-
- /* <= 0.99 ms */
- if (t < 100) {
- sprintf(buf, "0.%02d", t);
- return(buf);
- }
- /* 1.00 - 9.99 ms */
- if (t < 1000) {
- sprintf(buf, "%d.%02d", t/100, t%100);
- return(buf);
- }
- /* 10.0 - 99.9 ms */
- if (t < 10000) {
- sprintf(buf, "%d.%d", t/100, (t%100)/10);
- return(buf);
- }
- /* >= 100 ms */
- sprintf(buf, "%d", t/100);
- return(buf);
- }
-
- #ifdef _NO_PROTO
- void u_sleep (u_sec)
- int u_sec;
- #else
- void u_sleep (int u_sec)
- #endif
- {
- int nfound,slen,n;
- struct timeval to;
- fd_set readset,writeset;
-
- to.tv_sec = u_sec/1000000;
- to.tv_usec = u_sec - (to.tv_sec*1000000);
-
- FD_ZERO(&readset);
- FD_ZERO(&writeset);
- nfound = select(0, &readset, &writeset, NULL, &to);
- if (nfound<0) errno_crash_and_burn("select");
- return;
- }
-
- /*
- * recvfrom_wto: receive with timeout
- * returns length of data read or -1 if timeout
- * crash_and_burn on any other errrors
- *
- */
-
- #ifdef _NO_PROTO
- int recvfrom_wto (s,buf,len, saddr, timo)
- int s; char *buf; int len; struct sockaddr *saddr; int timo;
- #else
- int recvfrom_wto (int s, char *buf, int len, struct sockaddr *saddr, int timo)
- #endif
- {
- int nfound,slen,n;
- struct timeval to;
- fd_set readset,writeset;
-
- to.tv_sec = timo/100000;
- to.tv_usec = (timo - (to.tv_sec*100000))*10;
-
- FD_ZERO(&readset);
- FD_ZERO(&writeset);
- FD_SET(s,&readset);
- nfound = select(s+1,&readset,&writeset,NULL,&to);
- if (nfound<0) errno_crash_and_burn("select");
- if (nfound==0) return -1; /* timeout */
- slen=sizeof(struct sockaddr);
- n=recvfrom(s,buf,len,0,saddr,&slen);
- if (n<0) errno_crash_and_burn("recvfrom");
- return n;
- }
-
- #ifdef _NO_PROTO
- void usage()
- #else
- void usage()
- #endif
- {
- fprintf(stderr,"\n");
- fprintf(stderr,"Usage: %s [options] [targets...]\n",prog);
- fprintf(stderr," -a show targets that are alive\n");
- fprintf(stderr," -A show targets by address\n");
- fprintf(stderr," -b n amount of ping data to send, in bytes (default %d)\n", ping_data_size);
- fprintf(stderr," -B f set exponential backoff factor to f\n");
- fprintf(stderr," -c n count of pings to send to each target (default %d)\n", count);
- fprintf(stderr," -C n same as -c, report results in verbose format\n");
- fprintf(stderr," -e show elapsed time on return packets\n");
- fprintf(stderr," -f file read list of targets from a file ( - means stdin)\n");
- fprintf(stderr," -i n interval between sending ping packets (in millisec) (default %d)\n",interval/100);
- fprintf(stderr," -l loop sending pings forever\n");
- fprintf(stderr," -m ping multiple interfaces on target host\n");
- fprintf(stderr," -n show targets by name (-d is equivalent)\n");
- fprintf(stderr," -p n interval between ping packets to one target (in millisec)\n");
- fprintf(stderr," (in looping and counting modes, default %d)\n", perhost_interval/100);
- fprintf(stderr," -q quiet (don't show per-target/per-ping results)\n");
- fprintf(stderr," -Q n same as -q, but show summary every n seconds\n");
- fprintf(stderr," -r n number of retries (default %d)\n",retry);
- fprintf(stderr," -s print final stats\n");
- fprintf(stderr," -t n individual target initial timeout (in millisec) (default %d)\n",timeout/100);
- fprintf(stderr," -u show targets that are unreachable\n");
- fprintf(stderr," -v show version\n");
- fprintf(stderr," targets list of targets to check (if no -f specified)\n");
- fprintf(stderr,"\n");
- exit(3);
- }
-