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/*
Unix SMB/Netbios implementation.
Version 3.0
program to send control messages to Samba processes
Copyright (C) Andrew Tridgell 1994-1998
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define NO_SYSLOG
#include "includes.h"
static struct {
char *name;
int value;
} msg_types[] = {
{"debug", MSG_DEBUG},
{"force-election", MSG_FORCE_ELECTION},
{"ping", MSG_PING},
{NULL, -1}
};
static void usage(void)
{
int i;
printf("Usage: smbcontrol <destination> <message-type> <parameters>\n\n");
printf("\t<destination> is one of \"nmbd\", \"smbd\" or a process ID\n");
printf("\t<message-type> is one of: ");
for (i=0; msg_types[i].name; i++) printf("%s, ", msg_types[i].name);
printf("\n");
exit(1);
}
static int pong_count;
/****************************************************************************
a useful function for testing the message system
****************************************************************************/
void pong_function(int msg_type, pid_t src, void *buf, size_t len)
{
pong_count++;
}
/****************************************************************************
send a message to a named destination
****************************************************************************/
static BOOL send_message(char *dest, int msg_type, void *buf, int len)
{
pid_t pid;
/* "smbd" is the only broadcast operation */
if (strequal(dest,"smbd")) {
return message_send_all(msg_type, buf, len);
} else if (strequal(dest,"nmbd")) {
pid = pidfile_pid(dest);
if (pid == 0) {
fprintf(stderr,"Can't find pid for nmbd\n");
return False;
}
} else {
pid = atoi(dest);
if (pid == 0) {
fprintf(stderr,"Not a valid pid\n");
return False;
}
}
return message_send_pid(pid, msg_type, buf, len);
}
/****************************************************************************
evaluate a message type string
****************************************************************************/
static int parse_type(char *mtype)
{
int i;
for (i=0;msg_types[i].name;i++) {
if (strequal(mtype, msg_types[i].name)) return msg_types[i].value;
}
return -1;
}
int main(int argc, char *argv[])
{
char *dest;
int i, n, v;
pstring servicesf = CONFIGFILE;
int mtype;
TimeInit();
setup_logging(argv[0],True);
charset_initialise();
lp_load(servicesf,False,False,False);
message_init();
if (argc < 3) usage();
dest = argv[1];
mtype = parse_type(argv[2]);
if (mtype == -1) {
fprintf(stderr,"Couldn't resolve message type: %s\n", argv[2]);
exit(1);
}
argc -= 2;
argv += 2;
switch (mtype) {
case MSG_DEBUG:
if (argc < 2) {
fprintf(stderr,"MSG_DEBUG needs a parameter\n");
exit(1);
}
v = atoi(argv[1]);
send_message(dest, MSG_DEBUG, &v, sizeof(int));
break;
case MSG_FORCE_ELECTION:
if (!strequal(dest, "nmbd")) {
fprintf(stderr,"force-election can only be sent to nmbd\n");
exit(1);
}
send_message(dest, MSG_FORCE_ELECTION, NULL, 0);
break;
case MSG_PING:
message_register(MSG_PONG, pong_function);
n = atoi(argv[1]);
for (i=0;i<n;i++) {
send_message(dest, MSG_PING, NULL, 0);
}
while (pong_count < n) message_dispatch();
break;
}
return (0);
}
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