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Imported Debian patches: 2.4b2-to-ipv6-16.1

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pull/5/merge debian_2.4b2-to-ipv6-16.1
David Schweikert 13 years ago
parent fa6cbdb06d
commit 873bc1df2d
2 changed files with 159 additions and 54 deletions
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19
fping.8
Unescape Escape View File

@ -1,4 +1,4 @@
.TH fping l .TH fping 8
.SH NAME .SH NAME
fping \- send ICMP ECHO_REQUEST packets to network hosts fping \- send ICMP ECHO_REQUEST packets to network hosts
.SH SYNOPSIS .SH SYNOPSIS
@ -12,9 +12,9 @@ fping \- send ICMP ECHO_REQUEST packets to network hosts
.B fping .B fping
is a is a program like
.MS ping 8 .B ping(8)
like program which uses the Internet Control which uses the Internet Control
Message Protocol (ICMP) echo request to determine if a target host is Message Protocol (ICMP) echo request to determine if a target host is
responding. responding.
.B fping .B fping
@ -37,8 +37,7 @@ looping indefinitely (as in
). ).
.PP .PP
Unlike Unlike
.B ping .B ping,
,
.B fping .B fping
is meant to be used in scripts, so its output is designed to be is meant to be used in scripts, so its output is designed to be
easy to parse. easy to parse.
@ -130,12 +129,16 @@ Retry limit (default 3). This is the number of times an attempt at pinging
a target will be made, not including the first try. a target will be made, not including the first try.
.IP \fB-s\fR 5 .IP \fB-s\fR 5
Print cumulative statistics upon exit. Print cumulative statistics upon exit.
.IP \fB-S\fIaddr\fR 5
Set source address.
.IP \fB-t\fIn\fR 5 .IP \fB-t\fIn\fR 5
Initial target timeout in milliseconds (default 500). In the default Initial target timeout in milliseconds (default 500). In the default
mode, this is the amount of time that mode, this is the amount of time that
.B fping .B fping
waits for a response to its first request. Successive timeouts are waits for a response to its first request. Successive timeouts are
multiplied by the backoff factor. multiplied by the backoff factor.
.IP \fB-T\fIn\fR 5
Select timeout in seconds (default 10).
.IP \fB-u\fR 5 .IP \fB-u\fR 5
Show targets that are unreachable. Show targets that are unreachable.
.IP \fB-v\fR 5 .IP \fB-v\fR 5
@ -152,7 +155,7 @@ Sure the open2 usage is not needed in this example, but it's a good open2
example none the less. example none the less.
.nf .nf
#!/usr/local/bin/perl #!/usr/bin/perl
require 'open2.pl'; require 'open2.pl';
$MAILTO = "root"; $MAILTO = "root";
@ -178,7 +181,7 @@ Another good example is when you want to perform an action only on hosts
that are currently reachable. that are currently reachable.
.nf .nf
#!/usr/local/bin/perl #!/usr/bin/perl
$hosts_to_backup = `cat /etc/hosts.backup | fping -a`; $hosts_to_backup = `cat /etc/hosts.backup | fping -a`;

194
fping.c
Unescape Escape View File

@ -24,7 +24,7 @@
* *
* Original author: Roland Schemers <schemers@stanford.edu> * Original author: Roland Schemers <schemers@stanford.edu>
* IPv6 Support: Jeroen Massar <jeroen@unfix.org / jeroen@ipng.nl> * IPv6 Support: Jeroen Massar <jeroen@unfix.org / jeroen@ipng.nl>
* * Bugfixes, byte order & senseful seq.-numbers: Stephan Fuhrmann (stephan.fuhrmann AT 1und1.de)
* *
* *
* RCS header information no longer used. It has been moved to the * RCS header information no longer used. It has been moved to the
@ -42,7 +42,6 @@
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/ */
#define IPV6 1 /* This should be a compiler option, or even better be done from the Makefile... ;) */
#ifndef _NO_PROTO #ifndef _NO_PROTO
#if !__STDC__ && !defined( __cplusplus ) && !defined( FUNCPROTO ) \ #if !__STDC__ && !defined( __cplusplus ) && !defined( FUNCPROTO ) \
@ -101,13 +100,8 @@ extern "C"
#endif #endif
#include <netinet/in_systm.h> #include <netinet/in_systm.h>
/* Linux has bizarre ip.h and ip_icmp.h */
#if defined( __linux__ )
#include "linux.h"
#else
#include <netinet/ip.h> #include <netinet/ip.h>
#include <netinet/ip_icmp.h> #include <netinet/ip_icmp.h>
#endif /* defined(__linux__) */
#include <arpa/inet.h> #include <arpa/inet.h>
#include <netdb.h> #include <netdb.h>
@ -150,7 +144,11 @@ typedef struct ping_data
#define MIN_PING_DATA sizeof( PING_DATA ) #define MIN_PING_DATA sizeof( PING_DATA )
#define MAX_IP_PACKET 65536 /* (theoretical) max IP packet size */ #define MAX_IP_PACKET 65536 /* (theoretical) max IP packet size */
#define SIZE_IP_HDR 20 #define SIZE_IP_HDR 20
#ifndef IPV6
#define SIZE_ICMP_HDR ICMP_MINLEN /* from ip_icmp.h */ #define SIZE_ICMP_HDR ICMP_MINLEN /* from ip_icmp.h */
#else
#define SIZE_ICMP_HDR sizeof(FPING_ICMPHDR)
#endif
#define MAX_PING_DATA ( MAX_IP_PACKET - SIZE_IP_HDR - SIZE_ICMP_HDR ) #define MAX_PING_DATA ( MAX_IP_PACKET - SIZE_IP_HDR - SIZE_ICMP_HDR )
/* sized so as to be like traditional ping */ /* sized so as to be like traditional ping */
@ -192,7 +190,7 @@ char *icmp_type_str[19] =
"", "",
"", "",
"ICMP Time Exceeded", /* 11 */ "ICMP Time Exceeded", /* 11 */
"ICMP Paramter Problem", /* 12 */ "ICMP Parameter Problem", /* 12 */
"ICMP Timestamp Request", /* 13 */ "ICMP Timestamp Request", /* 13 */
"ICMP Timestamp Reply", /* 14 */ "ICMP Timestamp Reply", /* 14 */
"ICMP Information Request", /* 15 */ "ICMP Information Request", /* 15 */
@ -283,6 +281,12 @@ u_int ping_pkt_size;
u_int count = 1; u_int count = 1;
u_int trials; u_int trials;
u_int report_interval = 0; u_int report_interval = 0;
int src_addr_present = 0;
#ifndef IPV6
struct in_addr src_addr;
#else
struct in6_addr src_addr;
#endif
/* global stats */ /* global stats */
long max_reply = 0; long max_reply = 0;
@ -292,6 +296,7 @@ double sum_replies = 0;
int max_hostname_len = 0; int max_hostname_len = 0;
int num_jobs = 0; /* number of hosts still to do */ int num_jobs = 0; /* number of hosts still to do */
int num_hosts; /* total number of hosts */ int num_hosts; /* total number of hosts */
int max_seq_sent = 0; /* maximum sequence number sent so far */
int num_alive = 0, /* total number alive */ int num_alive = 0, /* total number alive */
num_unreachable = 0, /* total number unreachable */ num_unreachable = 0, /* total number unreachable */
num_noaddress = 0; /* total number of addresses not found */ num_noaddress = 0; /* total number of addresses not found */
@ -408,6 +413,11 @@ int main( int argc, char **argv )
struct protoent *proto; struct protoent *proto;
char *buf; char *buf;
uid_t uid; uid_t uid;
#ifndef IPV6
struct sockaddr_in sa;
#else
struct sockaddr_in6 sa;
#endif
/* check if we are root */ /* check if we are root */
if( geteuid() ) if( geteuid() )
@ -439,7 +449,7 @@ int main( int argc, char **argv )
#ifdef IPV6 #ifdef IPV6
/* /*
* let the kerel pass extension headers of incoming packets, * let the kernel pass extension headers of incoming packets,
* for privileged socket options * for privileged socket options
*/ */
#ifdef IPV6_RECVHOPOPTS #ifdef IPV6_RECVHOPOPTS
@ -474,6 +484,35 @@ int main( int argc, char **argv )
sizeof(opton))) sizeof(opton)))
err(1, "setsockopt(IPV6_RTHDR)"); err(1, "setsockopt(IPV6_RTHDR)");
#endif #endif
#ifndef USE_SIN6_SCOPE_ID
#ifdef IPV6_RECVPKTINFO
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVPKTINFO, &opton,
sizeof(opton)))
err(1, "setsockopt(IPV6_RECVPKTINFO)");
#else /* old adv. API */
if (setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &opton,
sizeof(opton)))
err(1, "setsockopt(IPV6_PKTINFO)");
#endif
#endif /* USE_SIN6_SCOPE_ID */
#ifdef IPV6_RECVHOPLIMIT
if (setsockopt(s, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &opton,
sizeof(opton)))
err(1, "setsockopt(IPV6_RECVHOPLIMIT)");
#else /* old adv. API */
if (setsockopt(s, IPPROTO_IPV6, IPV6_HOPLIMIT, &opton,
sizeof(opton)))
err(1, "setsockopt(IPV6_HOPLIMIT)");
#endif
#ifdef IPV6_CHECKSUM
#ifndef SOL_RAW
#define SOL_RAW IPPROTO_IPV6
#endif
opton = 2;
if (setsockopt(s, SOL_RAW, IPV6_CHECKSUM, &opton,
sizeof(opton)))
err(1, "setsockopt(SOL_RAW,IPV6_CHECKSUM)");
#endif
#endif #endif
if( ( uid = getuid() ) ) if( ( uid = getuid() ) )
@ -491,7 +530,7 @@ int main( int argc, char **argv )
/* get command line options */ /* get command line options */
while( ( c = getopt( argc, argv, "gedhlmnqusaAvz:t:i:p:f:r:c:b:C:Q:B:" ) ) != EOF ) while( ( c = getopt( argc, argv, "gedhlmnqusaAvz:t:i:p:f:r:c:b:C:Q:B:S:I:T:" ) ) != EOF )
{ {
switch( c ) switch( c )
{ {
@ -502,7 +541,7 @@ int main( int argc, char **argv )
break; break;
case 'r': case 'r':
if( !( retry = ( u_int )atoi( optarg ) ) ) if( ( retry = ( u_int )atoi( optarg ) ) < 0 )
usage(); usage();
break; break;
@ -639,6 +678,33 @@ int main( int argc, char **argv )
generate_flag = 1; generate_flag = 1;
break; break;
case 'S':
#ifndef IPV6
if( ! inet_pton( AF_INET, optarg, &src_addr ) )
#else
if( ! inet_pton( AF_INET6, optarg, &src_addr ) )
#endif
usage();
src_addr_present = 1;
break;
case 'I':
#ifdef SO_BINDTODEVICE
if (setsockopt(s, SOL_SOCKET, SO_BINDTODEVICE, optarg,
strlen(optarg)))
err(1, "setsockopt(AF_INET, SO_BINDTODEVICE)");
#else
fprintf( stderr,
"Warning: SO_BINDTODEVICE not supported, argument -I %s ignored\n",
optarg );
#endif
break;
case 'T':
if ( ! ( select_time = ( u_int )atoi( optarg ) * 100 ) )
usage();
break;
default: default:
usage(); usage();
break; break;
@ -821,7 +887,7 @@ int main( int argc, char **argv )
errno_crash_and_burn( "fopen" ); errno_crash_and_burn( "fopen" );
while( fgets( line, 132, ping_file ) ) while( fgets( line, sizeof(line), ping_file ) )
{ {
if( sscanf( line, "%s", host ) != 1 ) if( sscanf( line, "%s", host ) != 1 )
continue; continue;
@ -962,6 +1028,22 @@ int main( int argc, char **argv )
if( !num_hosts ) if( !num_hosts )
exit( 2 ); exit( 2 );
/* set the source address */
if( src_addr_present )
{
memset( &sa, 0, sizeof( sa ) );
#ifndef IPV6
sa.sin_family = AF_INET;
sa.sin_addr = src_addr;
#else
sa.sin6_family = AF_INET6;
sa.sin6_addr = src_addr;
#endif
if ( bind( s, (struct sockaddr *)&sa, sizeof( sa ) ) < 0 )
errno_crash_and_burn( "cannot bind source address" );
}
/* allocate array to hold outstanding ping requests */ /* allocate array to hold outstanding ping requests */
table = ( HOST_ENTRY** )malloc( sizeof( HOST_ENTRY* ) * num_hosts ); table = ( HOST_ENTRY** )malloc( sizeof( HOST_ENTRY* ) * num_hosts );
@ -1112,7 +1194,7 @@ int main( int argc, char **argv )
/* but allow time for the last one to come in */ /* but allow time for the last one to come in */
if( count_flag ) if( count_flag )
{ {
if( ( cursor->num_sent >= count ) && ( ht > cursor->timeout ) ) if( ( cursor->num_sent >= count ) && ( cursor->num_recv >= count || ht > cursor->timeout ) )
{ {
remove_job( cursor ); remove_job( cursor );
continue; continue;
@ -1153,6 +1235,7 @@ int main( int argc, char **argv )
finish(); finish();
return 0;
} /* main() */ } /* main() */
@ -1382,15 +1465,15 @@ void print_per_system_splits( void )
if( h->num_recv_i <= h->num_sent_i ) if( h->num_recv_i <= h->num_sent_i )
{ {
fprintf( stderr, " xmt/rcv/%%loss = %d/%d/%d%%", fprintf( stderr, " xmt/rcv/%%loss = %d/%d/%d%%",
h->num_sent_i, h->num_recv_i, h->num_sent_i, h->num_recv_i, h->num_sent_i > 0 ?
( ( h->num_sent_i - h->num_recv_i ) * 100 ) / h->num_sent_i ); ( ( h->num_sent_i - h->num_recv_i ) * 100 ) / h->num_sent_i : 0 );
}/* IF */ }/* IF */
else else
{ {
fprintf( stderr, " xmt/rcv/%%return = %d/%d/%d%%", fprintf( stderr, " xmt/rcv/%%return = %d/%d/%d%%",
h->num_sent_i, h->num_recv_i, h->num_sent_i, h->num_recv_i, h->num_sent_i > 0 ?
( ( h->num_recv_i * 100 ) / h->num_sent_i ) ); ( ( h->num_recv_i * 100 ) / h->num_sent_i ) : 0 );
}/* ELSE */ }/* ELSE */
@ -1504,12 +1587,15 @@ void send_ping( int s, HOST_ENTRY *h )
icp = ( FPING_ICMPHDR* )buffer; icp = ( FPING_ICMPHDR* )buffer;
gettimeofday( &h->last_send_time, &tz ); gettimeofday( &h->last_send_time, &tz );
int myseq = h->num_sent * num_hosts + h->i;
max_seq_sent = myseq > max_seq_sent ? myseq : max_seq_sent;
#ifndef IPV6 #ifndef IPV6
icp->icmp_type = ICMP_ECHO; icp->icmp_type = ICMP_ECHO;
icp->icmp_code = 0; icp->icmp_code = 0;
icp->icmp_cksum = 0; icp->icmp_cksum = 0;
icp->icmp_seq = h->i; icp->icmp_seq = htons(myseq);
icp->icmp_id = ident; icp->icmp_id = htons(ident);
pdp = ( PING_DATA* )( buffer + SIZE_ICMP_HDR ); pdp = ( PING_DATA* )( buffer + SIZE_ICMP_HDR );
pdp->ping_ts = h->last_send_time; pdp->ping_ts = h->last_send_time;
@ -1519,8 +1605,8 @@ void send_ping( int s, HOST_ENTRY *h )
#else #else
icp->icmp6_type = ICMP6_ECHO_REQUEST; icp->icmp6_type = ICMP6_ECHO_REQUEST;
icp->icmp6_code = 0; icp->icmp6_code = 0;
icp->icmp6_seq = h->i; icp->icmp6_seq = htons(myseq);
icp->icmp6_id = ident; icp->icmp6_id = htons(ident);
pdp = ( PING_DATA* )( buffer + SIZE_ICMP_HDR ); pdp = ( PING_DATA* )( buffer + SIZE_ICMP_HDR );
pdp->ping_ts = h->last_send_time; pdp->ping_ts = h->last_send_time;
@ -1667,25 +1753,25 @@ int wait_for_reply( void )
}/* IF */ }/* IF */
#ifndef IPV6 #ifndef IPV6
if( icp->icmp_id != ident ) if( ntohs(icp->icmp_id) != ident )
#else #else
if( icp->icmp6_id != ident ) if( ntohs(icp->icmp6_id) != ident )
#endif #endif
return 1; /* packet received, but not the one we are looking for! */ return 1; /* packet received, but not the one we are looking for! */
num_pingreceived++; num_pingreceived++;
#ifndef IPV6 #ifndef IPV6
if( icp->icmp_seq >= ( n_short )num_hosts ) if( ntohs(icp->icmp_seq) > max_seq_sent )
#else #else
if( icp->icmp6_seq >= ( n_short )num_hosts ) if( ntohs(icp->icmp6_seq) > max_seq_sent )
#endif #endif
return( 1 ); /* packet received, don't worry about it anymore */ return( 1 ); /* packet received, don't worry about it anymore */
#ifndef IPV6 #ifndef IPV6
n = icp->icmp_seq; n = ntohs(icp->icmp_seq) % num_hosts;
#else #else
n = icp->icmp6_seq; n = ntohs(icp->icmp6_seq) % num_hosts;
#endif #endif
h = table[n]; h = table[n];
@ -1824,6 +1910,7 @@ int wait_for_reply( void )
}/* IF */ }/* IF */
fflush( stdout );
return num_jobs; return num_jobs;
} /* wait_for_reply() */ } /* wait_for_reply() */
@ -1875,11 +1962,11 @@ int handle_random_icmp( FPING_ICMPHDR *p, int psize, FPING_SOCKADDR *addr )
sent_icmp = ( struct icmp* )( c + 28 ); sent_icmp = ( struct icmp* )( c + 28 );
if( ( sent_icmp->icmp_type == ICMP_ECHO ) && if( ( sent_icmp->icmp_type == ICMP_ECHO ) &&
( sent_icmp->icmp_id == ident ) && ( ntohs(sent_icmp->icmp_id) == ident ) &&
( sent_icmp->icmp_seq < ( n_short )num_hosts ) ) ( ntohs(sent_icmp->icmp_seq) <= ( n_short )max_seq_sent ) )
{ {
/* this is a response to a ping we sent */ /* this is a response to a ping we sent */
h = table[sent_icmp->icmp_seq]; h = table[ntohs(sent_icmp->icmp_seq) % num_hosts];
if( p->icmp_code > ICMP_UNREACH_MAXTYPE ) if( p->icmp_code > ICMP_UNREACH_MAXTYPE )
{ {
@ -1888,11 +1975,11 @@ int handle_random_icmp( FPING_ICMPHDR *p, int psize, FPING_SOCKADDR *addr )
#else #else
if( ( sent_icmp->icmp6_type == ICMP_ECHO ) && if( ( sent_icmp->icmp6_type == ICMP_ECHO ) &&
( sent_icmp->icmp6_id == ident ) && ( ntohs(sent_icmp->icmp6_id) == ident ) &&
( sent_icmp->icmp6_seq < ( n_short )num_hosts ) ) ( ntohs(sent_icmp->icmp6_seq) <= ( n_short )max_seq_sent ) )
{ {
/* this is a response to a ping we sent */ /* this is a response to a ping we sent */
h = table[sent_icmp->icmp6_seq]; h = table[ntohs(sent_icmp->icmp6_seq) % num_hosts];
if( p->icmp6_code > ICMP_UNREACH_MAXTYPE ) if( p->icmp6_code > ICMP_UNREACH_MAXTYPE )
{ {
@ -1930,24 +2017,24 @@ int handle_random_icmp( FPING_ICMPHDR *p, int psize, FPING_SOCKADDR *addr )
case ICMP_PARAMPROB: case ICMP_PARAMPROB:
sent_icmp = ( FPING_ICMPHDR* )( c + 28 ); sent_icmp = ( FPING_ICMPHDR* )( c + 28 );
#ifndef IPV6 #ifndef IPV6
if( ( sent_icmp->icmp_type = ICMP_ECHO ) && if( ( sent_icmp->icmp_type == ICMP_ECHO ) &&
( sent_icmp->icmp_id = ident ) && ( ntohs(sent_icmp->icmp_id) == ident ) &&
( sent_icmp->icmp_seq < ( n_short )num_hosts ) ) ( ntohs(sent_icmp->icmp_seq) <= ( n_short )max_seq_sent ) )
{ {
/* this is a response to a ping we sent */ /* this is a response to a ping we sent */
h = table[sent_icmp->icmp_seq]; h = table[ntohs(sent_icmp->icmp_seq) % num_hosts];
fprintf( stderr, "%s from %s for ICMP Echo sent to %s", fprintf( stderr, "%s from %s for ICMP Echo sent to %s",
icmp_type_str[p->icmp_type], inet_ntoa( addr->sin_addr ), h->host ); icmp_type_str[p->icmp_type], inet_ntoa( addr->sin_addr ), h->host );
if( inet_addr( h->host ) == -1 ) if( inet_addr( h->host ) == -1 )
fprintf( stderr, " (%s)", inet_ntoa( h->saddr.sin_addr ) ); fprintf( stderr, " (%s)", inet_ntoa( h->saddr.sin_addr ) );
#else #else
if( ( sent_icmp->icmp6_type = ICMP_ECHO ) && if( ( sent_icmp->icmp6_type == ICMP_ECHO ) &&
( sent_icmp->icmp6_id = ident ) && ( ntohs(sent_icmp->icmp6_id) == ident ) &&
( sent_icmp->icmp6_seq < ( n_short )num_hosts ) ) ( ntohs(sent_icmp->icmp6_seq) <= ( n_short )max_seq_sent ) )
{ {
/* this is a response to a ping we sent */ /* this is a response to a ping we sent */
h = table[sent_icmp->icmp6_seq]; h = table[ntohs(sent_icmp->icmp6_seq) % num_hosts];
fprintf( stderr, "%s from %s for ICMP Echo sent to %s", fprintf( stderr, "%s from %s for ICMP Echo sent to %s",
icmp_type_str[p->icmp6_type], addr_ascii, h->host ); icmp_type_str[p->icmp6_type], addr_ascii, h->host );
@ -2165,20 +2252,33 @@ void add_name( char *name )
struct addrinfo *res, hints; struct addrinfo *res, hints;
int ret_ga; int ret_ga;
char *hostname; char *hostname;
size_t len;
/* getaddrinfo */ /* getaddrinfo */
bzero(&hints, sizeof(struct addrinfo)); bzero(&hints, sizeof(struct addrinfo));
hints.ai_flags = AI_CANONNAME; hints.ai_flags = name_flag ? AI_CANONNAME : 0;
hints.ai_family = AF_INET6; hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_RAW; hints.ai_socktype = SOCK_RAW;
hints.ai_protocol = IPPROTO_ICMPV6; hints.ai_protocol = IPPROTO_ICMPV6;
ret_ga = getaddrinfo(name, NULL, &hints, &res); ret_ga = getaddrinfo(name, NULL, &hints, &res);
if (ret_ga) errx(1, "%s", gai_strerror(ret_ga)); if (ret_ga) {
if(!quiet_flag)
warnx("%s", gai_strerror(ret_ga));
num_noaddress++;
return;
}
if (res->ai_canonname) hostname = res->ai_canonname; if (res->ai_canonname) hostname = res->ai_canonname;
else hostname = name; else hostname = name;
if (!res->ai_addr) errx(1, "getaddrinfo failed"); if (!res->ai_addr) {
(void)memcpy(&dst, res->ai_addr, sizeof(FPING_SOCKADDR)); /*res->ai_addrlen);*/ if(!quiet_flag)
warnx("getaddrinfo failed");
num_noaddress++;
return;
}
len = res->ai_addrlen;
if (len > sizeof(FPING_SOCKADDR)) len = sizeof(FPING_SOCKADDR);
(void)memcpy(&dst, res->ai_addr, len);
add_addr(name, name, &dst); add_addr(name, name, &dst);
#endif #endif
} /* add_name() */ } /* add_name() */
@ -2730,9 +2830,11 @@ void usage( void )
fprintf( stderr, " (in looping and counting modes, default %d)\n", perhost_interval / 100 ); 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 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, " -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, " -r n number of retries (default %d)\n", DEFAULT_RETRY );
fprintf( stderr, " -s print final stats\n" ); fprintf( stderr, " -s print final stats\n" );
fprintf( stderr, " -S addr set source address\n" );
fprintf( stderr, " -t n individual target initial timeout (in millisec) (default %d)\n", timeout / 100 ); fprintf( stderr, " -t n individual target initial timeout (in millisec) (default %d)\n", timeout / 100 );
fprintf( stderr, " -T n set select timeout (default %d)\n", select_time / 100 );
fprintf( stderr, " -u show targets that are unreachable\n" ); fprintf( stderr, " -u show targets that are unreachable\n" );
fprintf( stderr, " -v show version\n" ); fprintf( stderr, " -v show version\n" );
fprintf( stderr, " targets list of targets to check (if no -f specified)\n" ); fprintf( stderr, " targets list of targets to check (if no -f specified)\n" );

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