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Output usage information to stdout when called with -h (Paul Duda)

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pull/8/head
David Schweikert 13 years ago
parent 940cbed179
commit 754feb217c
1 changed files with 62 additions and 63 deletions
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125
src/fping.c
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@ -339,7 +339,7 @@ void remove_job( HOST_ENTRY *h );
int send_ping( int s, HOST_ENTRY *h );
long timeval_diff( struct timeval *a, struct timeval *b );
void timeval_add(struct timeval *a, long t_10u);
void usage( void );
void usage( int );
int wait_for_reply( long );
void print_per_system_stats( void );
void print_per_system_splits( void );
@ -496,7 +496,7 @@ int main( int argc, char **argv )
{
case 't':
if( !( timeout = ( unsigned int )atoi( optarg ) * 100 ) )
usage();
usage(1);
break;
@ -506,26 +506,26 @@ int main( int argc, char **argv )
case 'i':
if( !( interval = ( unsigned int )atoi( optarg ) * 100 ) )
usage();
usage(1);
break;
case 'p':
if( !( perhost_interval = ( unsigned int )atoi( optarg ) * 100 ) )
usage();
usage(1);
break;
case 'c':
if( !( count = ( unsigned int )atoi( optarg ) ) )
usage();
usage(1);
count_flag = 1;
break;
case 'C':
if( !( count = ( unsigned int )atoi( optarg ) ) )
usage();
usage(1);
count_flag = 1;
report_all_rtts_flag = 1;
@ -533,12 +533,12 @@ int main( int argc, char **argv )
case 'b':
if( !( ping_data_size = ( unsigned int )atoi( optarg ) ) )
usage();
usage(1);
break;
case 'h':
usage();
usage(0);
break;
case 'q':
@ -550,7 +550,7 @@ int main( int argc, char **argv )
verbose_flag = 0;
quiet_flag = 1;
if( !( report_interval = ( unsigned int )atoi( optarg ) * 100000 ) )
usage();
usage(1);
break;
@ -573,7 +573,7 @@ int main( int argc, char **argv )
case 'B':
if( !( backoff = atof( optarg ) ) )
usage();
usage(1);
break;
@ -596,13 +596,13 @@ int main( int argc, char **argv )
case 'H':
if( !( ttl = ( u_int )atoi( optarg ) ))
usage();
usage(1);
break;
#if defined( DEBUG ) || defined( _DEBUG )
case 'z':
if( ! ( debugging = ( unsigned int )atoi( optarg ) ) )
usage();
usage(1);
break;
#endif /* DEBUG || _DEBUG */
@ -647,7 +647,7 @@ int main( int argc, char **argv )
#else
if( ! inet_pton( AF_INET6, optarg, &src_addr ) )
#endif
usage();
usage(1);
src_addr_present = 1;
break;
@ -674,7 +674,7 @@ int main( int argc, char **argv )
}
break;
default:
usage();
usage(1);
break;
}/* SWITCH */
@ -684,20 +684,20 @@ int main( int argc, char **argv )
if (ttl < 0 || ttl > 255) {
fprintf(stderr, "ping: ttl %u out of range\n", ttl);
usage();
usage(1);
}
if( unreachable_flag && alive_flag )
{
fprintf( stderr, "%s: specify only one of a, u\n", argv[0] );
usage();
usage(1);
}/* IF */
if( count_flag && loop_flag )
{
fprintf( stderr, "%s: specify only one of c, l\n", argv[0] );
usage();
usage(1);
}/* IF */
@ -710,7 +710,7 @@ int main( int argc, char **argv )
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();
usage(1);
}/* IF */
@ -718,7 +718,7 @@ int main( int argc, char **argv )
{
fprintf( stderr, "%s: data size %u not valid, must be between %u and %u\n",
prog, ping_data_size, (unsigned int) MIN_PING_DATA, (unsigned int) MAX_PING_DATA );
usage();
usage(1);
}/* IF */
@ -726,7 +726,7 @@ int main( int argc, char **argv )
{
fprintf( stderr, "%s: backoff factor %.1f not valid, must be between %.1f and %.1f\n",
prog, backoff, MIN_BACKOFF_FACTOR, MAX_BACKOFF_FACTOR );
usage();
usage(1);
}/* IF */
@ -734,7 +734,7 @@ int main( int argc, char **argv )
{
fprintf( stderr, "%s: count %u not valid, must be less than %u\n",
prog, count, MAX_COUNT );
usage();
usage(1);
}/* IF */
@ -838,7 +838,7 @@ int main( int argc, char **argv )
/* file and command line are mutually exclusive */
/* generate requires command line parameters beyond the switches */
if( ( *argv && filename ) || ( filename && generate_flag ) || ( generate_flag && !*argv ) )
usage();
usage(1);
/* if no conditions are specified, then assume input from stdin */
if( !*argv && !filename && !generate_flag )
@ -893,11 +893,11 @@ int main( int argc, char **argv )
add_range(argv[0], argv[1]);
}
else {
usage();
usage(1);
}
}
else {
usage();
usage(1);
}
if( !num_hosts )
@ -992,7 +992,7 @@ void add_cidr(char *addr)
/* Split address from mask */
addr_end = strchr(addr, '/');
if(addr_end == NULL) {
usage();
usage(1);
}
*addr_end = '\0';
mask_str = addr_end + 1;
@ -2792,50 +2792,49 @@ void ev_remove(HOST_ENTRY *h)
*************************************************************
Inputs: none (void)
Inputs: int: 0 if output on request, 1 if output because of wrong argument
Description:
************************************************************/
void usage( void )
void usage(int is_error)
{
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) (only if no -g specified)\n" );
fprintf( stderr, " -g generate target list (only if no -f specified)\n" );
fprintf( stderr, " (specify the start and end IP in the target list, or supply a IP netmask)\n" );
fprintf( stderr, " (ex. %s -g 192.168.1.0 192.168.1.255 or %s -g 192.168.1.0/24)\n", prog, prog );
fprintf( stderr, " -H n Set the IP TTL value (Time To Live hops)\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", DEFAULT_RETRY );
fprintf( stderr, " -s print final stats\n" );
FILE *out = is_error ? stderr : stdout;
fprintf(out, "\n" );
fprintf(out, "Usage: %s [options] [targets...]\n", prog );
fprintf(out, " -a show targets that are alive\n" );
fprintf(out, " -A show targets by address\n" );
fprintf(out, " -b n amount of ping data to send, in bytes (default %d)\n", ping_data_size );
fprintf(out, " -B f set exponential backoff factor to f\n" );
fprintf(out, " -c n count of pings to send to each target (default %d)\n", count );
fprintf(out, " -C n same as -c, report results in verbose format\n" );
fprintf(out, " -e show elapsed time on return packets\n" );
fprintf(out, " -f file read list of targets from a file ( - means stdin) (only if no -g specified)\n" );
fprintf(out, " -g generate target list (only if no -f specified)\n" );
fprintf(out, " (specify the start and end IP in the target list, or supply a IP netmask)\n" );
fprintf(out, " (ex. %s -g 192.168.1.0 192.168.1.255 or %s -g 192.168.1.0/24)\n", prog, prog );
fprintf(out, " -H n Set the IP TTL value (Time To Live hops)\n");
fprintf(out, " -i n interval between sending ping packets (in millisec) (default %d)\n", interval / 100 );
fprintf(out, " -l loop sending pings forever\n" );
fprintf(out, " -m ping multiple interfaces on target host\n" );
fprintf(out, " -n show targets by name (-d is equivalent)\n" );
fprintf(out, " -p n interval between ping packets to one target (in millisec)\n" );
fprintf(out, " (in looping and counting modes, default %d)\n", perhost_interval / 100 );
fprintf(out, " -q quiet (don't show per-target/per-ping results)\n" );
fprintf(out, " -Q n same as -q, but show summary every n seconds\n" );
fprintf(out, " -r n number of retries (default %d)\n", DEFAULT_RETRY );
fprintf(out, " -s print final stats\n" );
#ifdef SO_BINDTODEVICE
fprintf( stderr, " -I if bind to a particular interface\n");
fprintf(out, " -I if bind to a particular interface\n");
#endif
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 ignored (for compatibility with fping 2.4)\n");
fprintf( stderr, " -u show targets that are unreachable\n" );
fprintf( stderr, " -O n set the type of service (tos) flag on the ICMP packets\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 );
fprintf(out, " -S addr set source address\n" );
fprintf(out, " -t n individual target initial timeout (in millisec) (default %d)\n", timeout / 100 );
fprintf(out, " -T n ignored (for compatibility with fping 2.4)\n");
fprintf(out, " -u show targets that are unreachable\n" );
fprintf(out, " -O n set the type of service (tos) flag on the ICMP packets\n" );
fprintf(out, " -v show version\n" );
fprintf(out, " targets list of targets to check (if no -f specified)\n" );
fprintf(out, "\n");
exit(is_error);
} /* usage() */

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