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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
/* $Id: bump.c,v 1.1 2000/09/14 21:54:44 nstraz Exp $ */
#include <stdio.h>
#include <errno.h>
#include <sys/signal.h>
#include <string.h>
#define NANNY /* not really */
#include "zoolib.h"
pid_t
read_active( FILE *fp, char *name );
static char *errmsg;
main( int argc, char **argv ){
extern char *optarg;
extern int optind;
int c;
int x;
char *active = NULL;
pid_t nanny;
FILE *fp;
int sig = SIGINT;
while( (c = getopt(argc, argv, "a:s:12")) != -1 ){
switch(c){
case 'a':
active = (char*)malloc(strlen(optarg)+1);
strcpy( active, optarg );
break;
case 's':
sig = atoi( optarg );
break;
case '1':
sig = SIGUSR1;
break;
case '2':
sig = SIGUSR2;
break;
}
}
if( active == NULL ){
active = zoo_active();
if( active == NULL ){
fprintf(stderr, "bump: Must supply -a or set ZOO env variable\n");
exit(1);
}
}
if( optind == argc ){
fprintf( stderr, "bump: Must supply names\n");
exit(1);
}
/* need r+ here because we're using write-locks */
if( (fp = open_file( active, "r+", &errmsg )) == NULL ){
fprintf(stderr, "bump: %s\n", errmsg);
exit(1);
}
while( optind < argc ){
/*printf("argv[%d] = (%s)\n", optind, argv[optind] );*/
nanny = read_active( fp, argv[optind] );
if( nanny == -1 ){
fprintf(stderr, "bump: Did not find name '%s'\n",
argv[optind] );
}
else{
if( kill( nanny, sig ) == -1 ){
if( errno == ESRCH ){
fprintf(stderr,"bump: Did not find nanny '%s', pid %d\n",
argv[optind], nanny );
if( clear_active( fp, nanny, &errmsg ) != 1 )
fprintf(stderr,"bump: %s\n", errmsg);
}
}
}
++optind;
}
fclose( fp );
exit(0);
}
pid_t
read_active( FILE *fp, char *name )
{
char buf[1024];
pid_t nanny = -1;
char *n;
int len;
if( lock_file( fp, F_WRLCK, &errmsg ) == -1 ){
fprintf(stderr, "bump: %s\n", errmsg );
return(-1);
}
if( seek_file( fp, 0, SEEK_SET, &errmsg ) == -1 ){
fprintf(stderr, "bump: %s\n", errmsg );
return(-1);
}
len = strlen( name );
while(1){
if( fgets( buf, 1023, fp ) == NULL ){
/*printf("end of file\n");*/
break;
}
if( buf[0] == '#' ){
/*printf("skip line (%s)\n", buf );*/
continue;
}
/* get name */
if( (n = strchr( buf, ',' )) == NULL ){
/*printf("no comma (%s)\n", buf );*/
continue;
}
if( strncmp( n + 1, name, len ) != 0 ){
/*printf("not matching (%s) and (%s)\n",
n+1, name );*/
continue;
}
nanny = atoi( buf );
break;
}/* while */
if( lock_file( fp, F_UNLCK, &errmsg ) == -1 ){
fprintf(stderr, "bump: %s\n", errmsg );
return(-1);
}
return nanny;
}