[moira.git] / dcm / dcm.c

/*
 * The Data Control Manager for MOIRA.
 *
 * Copyright 1987, 1988 by the Massachusetts Institute of Technology.
 * For copying and distribution information, see the file
 * "mit-copyright.h".
 *
 * $Source$
 * $Author$
 * $Header$
 */

#ifndef lint
static char rcsid_dcm_c[] = "$Header$";
#endif lint

#include <stdio.h>
#include <update.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include <ctype.h>
#include <moira.h>
#include <moira_site.h>
#include "dcm.h"
#include "mit-copyright.h"
#include <unistd.h>

extern char *ctime();
extern char *getenv();
extern int log_flags;
extern char *error_message();
char *itoa();
int gqval();
long time();


/* declared global so that we can get the current time from different places. */
struct timeval tv;


main(argc, argv)
int argc;
char *argv[];
{
	int i;
	char **arg = argv;
	char *qargv[3];
	char *s;
	int status;

	whoami = argv[0];
	s = getenv("DEBUG");
	dbg = s ? atoi(s) : 0;
	umask(UMASK);
	log_flags = 0;

	setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
	setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
	
	while(++arg - argv < argc) {
	    if (**arg == '-')
		switch((*arg)[1]) {
		case 'd':
		    dbg =  atoi((*arg)[2]? *arg+2: *++arg);
		    break;
		}
	}
	set_com_err_hook(dcm_com_err_hook);
	
	/* if /etc/nodcm exists, punt quietly. */
	if (!access(NODCMFILE, F_OK)) {
		exit(1);
	} 

	if (status = mr_connect("")) {
	    com_err(whoami, status, " on mr_connect");
	    leave("connect failed");
	}

	if (status = mr_auth("dcm")) {
	    com_err(whoami, status, " on \"authenticate\"");
	    leave("auth failed");
	}

	/* if DCM is not enabled, exit after logging */
	qargv[0] = "dcm_enable";
	if (status = mr_query("get_value", 1, qargv, gqval, &i)) {
	    com_err(whoami, status, " check dcm_enable");
	    leave("query failed");
	}
	if (i == 0) {
	    errno = 0;
	    leave("dcm_enable not set");
	} 

	/* do it! */
	do_services();
	errno = 0;
	leave("");
}


/* Used by the get_value query when checking for dcm_enable. */

gqval(argc, argv, hint)
int argc;
char **argv;
int *hint;
{
    *hint = atoi(argv[0]);
    return(UPCALL_STOP);
}


/* Used by qualified_get_server to make a list of servers to check */

qgetsv(argc, argv, sq)
int argc;
char **argv;
struct save_queue *sq;
{
    sq_save_data(sq, strsave(argv[0]));
    return(UPCALL_CONT);
}


/* Used by get_server_info to record all of the returned information */

getsvinfo(argc, argv, sserv)
int argc;
char **argv;
struct service *sserv;
{
    sserv->service = strsave(argv[0]);
    sserv->interval = atoi(argv[1]);
    sserv->target = strsave(argv[2]);
    sserv->script = strsave(argv[3]);
    sserv->dfgen = atoi(argv[4]);
    sserv->dfcheck = atoi(argv[5]);
    sserv->type = strsave(argv[6]);
    sserv->enable = atoi(argv[7]);
    sserv->inprogress = atoi(argv[8]);
    sserv->harderror = atoi(argv[9]);
    sserv->errmsg = strsave(argv[10]);
    return(UPCALL_STOP);
}


/* Scan the services and process any that need it. */

do_services()
{
    char *qargv[6];
    struct save_queue *sq, *sq_create();
    char *service, dfgen_prog[64], dfgen_cmd[128];
    struct service svc;
    int status, lock_fd, ex, (*cstat)();
    struct timezone tz;
    register char *p;
    int waits;
    struct sigaction action, prevaction;

    if (dbg & DBG_VERBOSE)
	com_err(whoami, 0, "starting pass over services");

    qargv[0] = "true";
    qargv[1] = "dontcare";
    qargv[2] = "false";
    sq = sq_create();
    if (status = mr_query_with_retry("qualified_get_server", 3, qargv,
				      qgetsv, sq)) {
	com_err(whoami, status, " getting services");
	leave("query failed");
    }
    while (sq_get_data(sq, &service)) {
	for (p = service; *p; p++)
	  if (isupper(*p))
	    *p = tolower(*p);
	com_err(whoami, 0, "checking %s...", service);
	qargv[0] = service;
	sprintf(dfgen_prog, "%s/%s.gen", BIN_DIR, service);
	if (!file_exists(dfgen_prog)) {
	    com_err(whoami, 0, "prog %s doesn't exist\n", dfgen_prog);
	    free(service);
	    continue;
	}
	sprintf(dfgen_cmd, "exec %s %s/%s.out",
		dfgen_prog, DCM_DIR, service);
	gettimeofday(&tv, &tz);
	if (status = mr_query_with_retry("get_server_info", 1, qargv,
					  getsvinfo, &svc)) {
	    com_err(whoami, status, " getting service %s info, skipping to next service", service);
	    continue;
	}
	svc.service = strsave(service);
	qargv[0] = strsave(service);
	qargv[1] = itoa(svc.dfgen);
	qargv[2] = itoa(svc.dfcheck);
	qargv[3] = strsave("0");
	qargv[4] = itoa(svc.harderror);
	qargv[5] = strsave(svc.errmsg);
	if (svc.interval != 0) {
	    if (svc.interval * 60 + svc.dfcheck < tv.tv_sec) {
		lock_fd = maybe_lock_update("@db@", service, 1);
		if (lock_fd < 0)
		  goto free_service;
		free(qargv[3]);
		free(qargv[4]);
		free(qargv[5]);
		qargv[3] = strsave("1");
		qargv[4] = strsave("0");
		qargv[5] = strsave("");
		status = mr_query_with_retry("set_server_internal_flags", 6,
					      qargv, scream, NULL);
		if (status != MR_SUCCESS) {
		    com_err(whoami, status, " setting server state");
		    goto free_service;
		}
	    
		com_err(whoami, status, " running %s", dfgen_prog);

		action.sa_flags = 0;
		sigemptyset(&action.sa_mask);
		action.sa_handler = SIG_DFL;
		sigaction(SIGCHLD, &action, &prevaction);
		waits = system(dfgen_cmd);
		sigaction(SIGCHLD, &prevaction, NULL);
		if (WIFSIGNALED(waits)) {
		    status = MR_COREDUMP;
		    com_err(whoami, status, " %s exited on signal %d",
			    dfgen_prog, WTERMSIG(waits));
		} else if (WEXITSTATUS(waits)) {
		    /* extract the process's exit value */
		    status = WEXITSTATUS(waits) + ERROR_TABLE_BASE_sms;
		    com_err(whoami, status, " %s exited", dfgen_prog);
		}

		if (SOFT_FAIL(status)) {
		    free(qargv[5]);
		    qargv[5] = strsave(error_message(status));
		} else if (status == MR_NO_CHANGE) {
		    free(qargv[2]);
		    qargv[2] = itoa(tv.tv_sec);
		    svc.dfcheck = tv.tv_sec;
		} else if (status == MR_SUCCESS) {
		    free(qargv[1]);
		    free(qargv[2]);
		    qargv[1] = itoa(tv.tv_sec);
		    qargv[2] = strsave(qargv[1]);
		    svc.dfcheck = svc.dfgen = tv.tv_sec;
		} else { /* HARD_FAIL(status) */
		    free(qargv[2]);
		    free(qargv[4]);
		    free(qargv[5]);
		    qargv[2] = itoa(tv.tv_sec);	
		    svc.dfcheck = tv.tv_sec;
		    qargv[4] = itoa(status);
		    qargv[5] = strsave(error_message(status));
		    critical_alert("DCM","DCM building config files for %s: %s",
				  service, qargv[5]);
		}
	    free_service:
		free(qargv[3]);
		qargv[3] = strsave("0");
		status = mr_query_with_retry("set_server_internal_flags", 6,
					      qargv, scream, NULL);
		if (status)
		  com_err(whoami, status, " setting service state");
		close(lock_fd);
		free(qargv[0]);
		free(qargv[1]);
		free(qargv[2]);
		free(qargv[3]);
		free(qargv[4]);
		free(qargv[5]);
	    }
	    if (!strcmp(svc.type, "REPLICAT"))
	      ex = 1;
	    else
	      ex = 0;
	    lock_fd = maybe_lock_update("@db@", service, ex);
	    if (lock_fd >= 0) {
		do_hosts(&svc);
		close(lock_fd);
	    }
	}
	free(svc.service);
	free(svc.target);
	free(svc.script);
	free(svc.type);
	free(svc.errmsg);
	free(service);
    }
    sq_destroy(sq);
}


/* Used by qualified_get_server_host to make a list of hosts to check */

qgethost(argc, argv, sq)
int argc;
char **argv;
struct save_queue *sq;
{
    sq_save_data(sq, strsave(argv[1]));
    return(UPCALL_CONT);
}


/* Used by get_server_host_info to store all of the info about a host */

gethostinfo(argc, argv, shost)
int argc;
char **argv;
struct svrhost *shost;
{
    shost->service = strsave(argv[0]);
    shost->machine = strsave(argv[1]);
    shost->enable = atoi(argv[2]);
    shost->override = atoi(argv[3]);
    shost->success = atoi(argv[4]);
    shost->inprogress = atoi(argv[5]);
    shost->hosterror = atoi(argv[6]);
    shost->errmsg = strsave(argv[7]);
    shost->lasttry = atoi(argv[8]);
    shost->lastsuccess = atoi(argv[9]);
    shost->value1 = atoi(argv[10]);
    shost->value2 = atoi(argv[11]);
    shost->value3 = strsave(argv[12]);
    return(UPCALL_STOP);
}


/* Scans all of the hosts for a particular service, and processes them. */

do_hosts(svc)
struct service *svc;
{
    char *argv[9], *machine;
    int status, lock_fd;
    struct save_queue *sq;
    struct svrhost shost;

    sq = sq_create();
    argv[0] = svc->service;
    argv[1] = "TRUE";
    argv[2] = argv[3] = argv[4] = "DONTCARE";
    argv[5] = "FALSE";
    status = mr_query_with_retry("qualified_get_server_host", 6, argv,
				  qgethost, sq);
    if (status == MR_NO_MATCH) {
	return;
    } else if (status) {
	com_err(whoami, status, " getting server_hosts for  %s", svc->service);
	return;
    }
    while (sq_get_data(sq, &machine)) {
	if (dbg & DBG_TRACE)
	  com_err(whoami, 0, "checking %s...", machine);
	argv[1] = machine;
	status = mr_query_with_retry("get_server_host_info", 2, argv,
				      gethostinfo, &shost);
	if (status) {
	    com_err(whoami,status, " getting server_host_info for %s", machine);
	    goto free_mach;
	}
	if (!shost.enable || shost.hosterror ||
	    (shost.success && !shost.override &&
	     shost.lastsuccess >= svc->dfgen)) {
	    if (dbg & DBG_TRACE)
	      com_err(whoami, 0, "not updating %s:%s", svc->service, machine);
	    goto free_mach;
	}

	lock_fd = maybe_lock_update(machine, svc->service, 1);
	if (lock_fd < 0)
	  goto free_mach;
	argv[0] = svc->service;
	argv[1] = machine;
	argv[2] = argv[3] = argv[5] = "0";
	argv[4] = "1";
	argv[6] = strsave("");
	argv[7] = itoa(tv.tv_sec);
	argv[8] = itoa(shost.lastsuccess);
	status = mr_query_with_retry("set_server_host_internal", 9, argv,
				      scream, NULL);
	if (status != MR_SUCCESS) {
	    com_err(whoami,status," while setting internal state for %s:%s",
		    svc->service, machine);
	    goto free_mach;
	}
	status = mr_update_server(svc->service, machine, svc->target,
				   svc->script);
	if (status == MR_SUCCESS) {
	    argv[2] = argv[4] = "0";
	    argv[3] = "1";
	    free(argv[8]);
	    argv[8] = itoa(tv.tv_sec);
	} else if (SOFT_FAIL(status)) {
	    argv[4] = "0";
	    free(argv[6]);
	    argv[6] = strsave(error_message(status));
	} else { /* HARD_FAIL */
	    argv[2] = itoa(shost.override);
	    argv[4] = "0";
	    argv[5] = itoa(status);
	    free(argv[6]);
	    argv[6] = strsave(error_message(status));
	    critical_alert("DCM", "DCM updating %s:%s: %s",
			   machine, svc->service, argv[6]);
	    if (!strcmp(svc->type, "REPLICAT")) {
		char *qargv[6];

		svc->harderror = status;
		svc->errmsg = strsave(argv[6]);
		qargv[0] = strsave(svc->service);
		qargv[1] = itoa(svc->dfgen);
		qargv[2] = itoa(svc->dfcheck);
		qargv[3] = strsave("0");
		qargv[4] = itoa(svc->harderror);
		qargv[5] = strsave(svc->errmsg);
		status = mr_query_with_retry("set_server_internal_flags",
					      6, qargv, scream, NULL);
		if (status)
		  com_err(whoami, status, " setting service state again");
		free(qargv[0]);
		free(qargv[1]);
		free(qargv[2]);
		free(qargv[3]);
		free(qargv[4]);
		free(qargv[5]);
		close(lock_fd);
		status = mr_query_with_retry("set_server_host_internal",
					      9, argv,scream,NULL);
		free(argv[2]);
		free(argv[5]);
		if (status)
		  com_err(whoami, status, " setting host state again");
		return(-1);
	    }
	}
	close(lock_fd);
	status = mr_query_with_retry("set_server_host_internal", 9, argv,
				      scream, NULL);
	if (status)
	  com_err(whoami, status, " setting host state again");
/*	free(argv[2]);
	free(argv[5]); */
    free_mach:
	free(machine);
	close(lock_fd);
    }
    return(0);
}
Commit	Line	Data
846841f4	1	/*
2ce085d2	2	* The Data Control Manager for MOIRA.
846841f4	3	*
	4	* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
	5	* For copying and distribution information, see the file
	6	* "mit-copyright.h".
	7	*
	8	* $Source$
	9	* $Author$
	10	* $Header$
	11	*/
	12
	13	#ifndef lint
	14	static char rcsid_dcm_c[] = "$Header$";
	15	#endif lint
	16
	17	#include <stdio.h>
	18	#include <update.h>
	19	#include <sys/file.h>
	20	#include <sys/time.h>
	21	#include <sys/wait.h>
15fa49b5	22	#include <sys/stat.h>
15fa49b5	23	#include <fcntl.h>
a1a0dadf	24	#include <signal.h>
846841f4	25	#include <ctype.h>
2ce085d2	26	#include <moira.h>
2ce085d2	27	#include <moira_site.h>
846841f4	28	#include "dcm.h"
846841f4	29	#include "mit-copyright.h"
15fa49b5	30	#include <unistd.h>
846841f4	31
	32	extern char *ctime();
	33	extern char *getenv();
	34	extern int log_flags;
	35	extern char *error_message();
	36	char *itoa();
	37	int gqval();
	38	long time();
	39
	40
	41	/* declared global so that we can get the current time from different places. */
	42	struct timeval tv;
	43
	44
	45	main(argc, argv)
	46	int argc;
	47	char *argv[];
	48	{
	49	int i;
	50	char **arg = argv;
	51	char *qargv[3];
fe83b772	52	char *s;
846841f4	53	int status;
	54
	55	whoami = argv[0];
fe83b772	56	s = getenv("DEBUG");
fe83b772	57	dbg = s ? atoi(s) : 0;
846841f4	58	umask(UMASK);
846841f4	59	log_flags = 0;
15fa49b5	60
	61	setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
	62	setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
846841f4	63
	64	while(++arg - argv < argc) {
	65	if (**arg == '-')
	66	switch((*arg)[1]) {
	67	case 'd':
	68	dbg = atoi((arg)[2]? arg+2: *++arg);
	69	break;
	70	}
	71	}
	72	set_com_err_hook(dcm_com_err_hook);
	73
	74	/* if /etc/nodcm exists, punt quietly. */
185f76ce	75	if (!access(NODCMFILE, F_OK)) {
846841f4	76	exit(1);
	77	}
	78
2ce085d2	79	if (status = mr_connect("")) {
2ce085d2	80	com_err(whoami, status, " on mr_connect");
846841f4	81	leave("connect failed");
	82	}
	83
2ce085d2	84	if (status = mr_auth("dcm")) {
846841f4	85	com_err(whoami, status, " on \"authenticate\"");
	86	leave("auth failed");
	87	}
	88
	89	/* if DCM is not enabled, exit after logging */
	90	qargv[0] = "dcm_enable";
2ce085d2	91	if (status = mr_query("get_value", 1, qargv, gqval, &i)) {
846841f4	92	com_err(whoami, status, " check dcm_enable");
	93	leave("query failed");
	94	}
	95	if (i == 0) {
	96	errno = 0;
	97	leave("dcm_enable not set");
	98	}
	99
	100	/* do it! */
846841f4	101	do_services();
	102	errno = 0;
	103	leave("");
	104	}
	105
	106
	107	/* Used by the get_value query when checking for dcm_enable. */
	108
	109	gqval(argc, argv, hint)
	110	int argc;
	111	char **argv;
	112	int *hint;
	113	{
	114	*hint = atoi(argv[0]);
	115	return(UPCALL_STOP);
	116	}
	117
	118
	119	/* Used by qualified_get_server to make a list of servers to check */
	120
	121	qgetsv(argc, argv, sq)
	122	int argc;
	123	char **argv;
	124	struct save_queue *sq;
	125	{
	126	sq_save_data(sq, strsave(argv[0]));
	127	return(UPCALL_CONT);
	128	}
	129
	130
	131	/* Used by get_server_info to record all of the returned information */
	132
	133	getsvinfo(argc, argv, sserv)
	134	int argc;
	135	char **argv;
	136	struct service *sserv;
	137	{
	138	sserv->service = strsave(argv[0]);
	139	sserv->interval = atoi(argv[1]);
	140	sserv->target = strsave(argv[2]);
	141	sserv->script = strsave(argv[3]);
	142	sserv->dfgen = atoi(argv[4]);
	143	sserv->dfcheck = atoi(argv[5]);
	144	sserv->type = strsave(argv[6]);
	145	sserv->enable = atoi(argv[7]);
	146	sserv->inprogress = atoi(argv[8]);
	147	sserv->harderror = atoi(argv[9]);
	148	sserv->errmsg = strsave(argv[10]);
	149	return(UPCALL_STOP);
	150	}
	151
	152
	153	/* Scan the services and process any that need it. */
	154
	155	do_services()
	156	{
	157	char *qargv[6];
	158	struct save_queue sq, sq_create();
	159	char *service, dfgen_prog[64], dfgen_cmd[128];
	160	struct service svc;
a1a0dadf	161	int status, lock_fd, ex, (*cstat)();
846841f4	162	struct timezone tz;
846841f4	163	register char *p;
15fa49b5	164	int waits;
15fa49b5	165	struct sigaction action, prevaction;
846841f4	166
	167	if (dbg & DBG_VERBOSE)
	168	com_err(whoami, 0, "starting pass over services");
	169
	170	qargv[0] = "true";
	171	qargv[1] = "dontcare";
	172	qargv[2] = "false";
	173	sq = sq_create();
2ce085d2	174	if (status = mr_query_with_retry("qualified_get_server", 3, qargv,
0967ae03	175	qgetsv, sq)) {
846841f4	176	com_err(whoami, status, " getting services");
	177	leave("query failed");
	178	}
	179	while (sq_get_data(sq, &service)) {
	180	for (p = service; *p; p++)
	181	if (isupper(*p))
	182	p = tolower(p);
	183	com_err(whoami, 0, "checking %s...", service);
	184	qargv[0] = service;
185f76ce	185	sprintf(dfgen_prog, "%s/%s.gen", BIN_DIR, service);
846841f4	186	if (!file_exists(dfgen_prog)) {
	187	com_err(whoami, 0, "prog %s doesn't exist\n", dfgen_prog);
	188	free(service);
	189	continue;
	190	}
185f76ce	191	sprintf(dfgen_cmd, "exec %s %s/%s.out",
185f76ce	192	dfgen_prog, DCM_DIR, service);
846841f4	193	gettimeofday(&tv, &tz);
2ce085d2	194	if (status = mr_query_with_retry("get_server_info", 1, qargv,
0967ae03	195	getsvinfo, &svc)) {
4e5690ff	196	com_err(whoami, status, " getting service %s info, skipping to next service", service);
4e5690ff	197	continue;
846841f4	198	}
	199	svc.service = strsave(service);
	200	qargv[0] = strsave(service);
	201	qargv[1] = itoa(svc.dfgen);
	202	qargv[2] = itoa(svc.dfcheck);
	203	qargv[3] = strsave("0");
	204	qargv[4] = itoa(svc.harderror);
	205	qargv[5] = strsave(svc.errmsg);
	206	if (svc.interval != 0) {
	207	if (svc.interval * 60 + svc.dfcheck < tv.tv_sec) {
185f76ce	208	lock_fd = maybe_lock_update("@db@", service, 1);
846841f4	209	if (lock_fd < 0)
	210	goto free_service;
	211	free(qargv[3]);
	212	free(qargv[4]);
	213	free(qargv[5]);
	214	qargv[3] = strsave("1");
	215	qargv[4] = strsave("0");
	216	qargv[5] = strsave("");
2ce085d2	217	status = mr_query_with_retry("set_server_internal_flags", 6,
0967ae03	218	qargv, scream, NULL);
2ce085d2	219	if (status != MR_SUCCESS) {
846841f4	220	com_err(whoami, status, " setting server state");
	221	goto free_service;
	222	}
	223
	224	com_err(whoami, status, " running %s", dfgen_prog);
15fa49b5	225
	226	action.sa_flags = 0;
	227	sigemptyset(&action.sa_mask);
	228	action.sa_handler = SIG_DFL;
	229	sigaction(SIGCHLD, &action, &prevaction);
	230	waits = system(dfgen_cmd);
	231	sigaction(SIGCHLD, &prevaction, NULL);
	232	if (WIFSIGNALED(waits)) {
95d47b7a	233	status = MR_COREDUMP;
c9c95b8a	234	com_err(whoami, status, " %s exited on signal %d",
15fa49b5	235	dfgen_prog, WTERMSIG(waits));
15fa49b5	236	} else if (WEXITSTATUS(waits)) {
c9c95b8a	237	/* extract the process's exit value */
15fa49b5	238	status = WEXITSTATUS(waits) + ERROR_TABLE_BASE_sms;
846841f4	239	com_err(whoami, status, " %s exited", dfgen_prog);
846841f4	240	}
15fa49b5	241
846841f4	242	if (SOFT_FAIL(status)) {
	243	free(qargv[5]);
	244	qargv[5] = strsave(error_message(status));
2ce085d2	245	} else if (status == MR_NO_CHANGE) {
846841f4	246	free(qargv[2]);
	247	qargv[2] = itoa(tv.tv_sec);
	248	svc.dfcheck = tv.tv_sec;
2ce085d2	249	} else if (status == MR_SUCCESS) {
846841f4	250	free(qargv[1]);
	251	free(qargv[2]);
	252	qargv[1] = itoa(tv.tv_sec);
	253	qargv[2] = strsave(qargv[1]);
	254	svc.dfcheck = svc.dfgen = tv.tv_sec;
	255	} else { /* HARD_FAIL(status) */
	256	free(qargv[2]);
	257	free(qargv[4]);
	258	free(qargv[5]);
	259	qargv[2] = itoa(tv.tv_sec);
	260	svc.dfcheck = tv.tv_sec;
	261	qargv[4] = itoa(status);
	262	qargv[5] = strsave(error_message(status));
	263	critical_alert("DCM","DCM building config files for %s: %s",
	264	service, qargv[5]);
	265	}
	266	free_service:
	267	free(qargv[3]);
	268	qargv[3] = strsave("0");
2ce085d2	269	status = mr_query_with_retry("set_server_internal_flags", 6,
0967ae03	270	qargv, scream, NULL);
	271	if (status)
	272	com_err(whoami, status, " setting service state");
846841f4	273	close(lock_fd);
	274	free(qargv[0]);
	275	free(qargv[1]);
	276	free(qargv[2]);
	277	free(qargv[3]);
	278	free(qargv[4]);
	279	free(qargv[5]);
	280	}
	281	if (!strcmp(svc.type, "REPLICAT"))
	282	ex = 1;
	283	else
	284	ex = 0;
185f76ce	285	lock_fd = maybe_lock_update("@db@", service, ex);
846841f4	286	if (lock_fd >= 0) {
	287	do_hosts(&svc);
	288	close(lock_fd);
	289	}
	290	}
	291	free(svc.service);
	292	free(svc.target);
	293	free(svc.script);
	294	free(svc.type);
	295	free(svc.errmsg);
	296	free(service);
	297	}
	298	sq_destroy(sq);
	299	}
	300
	301
	302	/* Used by qualified_get_server_host to make a list of hosts to check */
	303
	304	qgethost(argc, argv, sq)
	305	int argc;
	306	char **argv;
	307	struct save_queue *sq;
	308	{
	309	sq_save_data(sq, strsave(argv[1]));
	310	return(UPCALL_CONT);
	311	}
	312
	313
	314	/* Used by get_server_host_info to store all of the info about a host */
	315
	316	gethostinfo(argc, argv, shost)
	317	int argc;
	318	char **argv;
	319	struct svrhost *shost;
	320	{
	321	shost->service = strsave(argv[0]);
	322	shost->machine = strsave(argv[1]);
	323	shost->enable = atoi(argv[2]);
	324	shost->override = atoi(argv[3]);
	325	shost->success = atoi(argv[4]);
	326	shost->inprogress = atoi(argv[5]);
	327	shost->hosterror = atoi(argv[6]);
	328	shost->errmsg = strsave(argv[7]);
	329	shost->lasttry = atoi(argv[8]);
	330	shost->lastsuccess = atoi(argv[9]);
	331	shost->value1 = atoi(argv[10]);
	332	shost->value2 = atoi(argv[11]);
	333	shost->value3 = strsave(argv[12]);
	334	return(UPCALL_STOP);
	335	}
	336
	337
	338	/* Scans all of the hosts for a particular service, and processes them. */
	339
	340	do_hosts(svc)
	341	struct service *svc;
	342	{
	343	char argv[9], machine;
	344	int status, lock_fd;
	345	struct save_queue *sq;
	346	struct svrhost shost;
	347
	348	sq = sq_create();
	349	argv[0] = svc->service;
350	argv[1] = "TRUE";
351	argv[2] = argv[3] = argv[4] = "DONTCARE";
352	argv[5] = "FALSE";
2ce085d2	353	status = mr_query_with_retry("qualified_get_server_host", 6, argv,
0967ae03	354	qgethost, sq);
2ce085d2	355	if (status == MR_NO_MATCH) {
846841f4	356	return;
	357	} else if (status) {
	358	com_err(whoami, status, " getting server_hosts for %s", svc->service);
	359	return;
	360	}
	361	while (sq_get_data(sq, &machine)) {
	362	if (dbg & DBG_TRACE)
	363	com_err(whoami, 0, "checking %s...", machine);
	364	argv[1] = machine;
2ce085d2	365	status = mr_query_with_retry("get_server_host_info", 2, argv,
0967ae03	366	gethostinfo, &shost);
846841f4	367	if (status) {
	368	com_err(whoami,status, " getting server_host_info for %s", machine);
	369	goto free_mach;
	370	}
	371	if (!shost.enable \|\| shost.hosterror \|\|
4112693b	372	(shost.success && !shost.override &&
6899dfbe	373	shost.lastsuccess >= svc->dfgen)) {
846841f4	374	if (dbg & DBG_TRACE)
	375	com_err(whoami, 0, "not updating %s:%s", svc->service, machine);
	376	goto free_mach;
	377	}
062079b1	378
185f76ce	379	lock_fd = maybe_lock_update(machine, svc->service, 1);
062079b1	380	if (lock_fd < 0)
	381	goto free_mach;
	382	argv[0] = svc->service;
	383	argv[1] = machine;
	384	argv[2] = argv[3] = argv[5] = "0";
	385	argv[4] = "1";
	386	argv[6] = strsave("");
	387	argv[7] = itoa(tv.tv_sec);
	388	argv[8] = itoa(shost.lastsuccess);
2ce085d2	389	status = mr_query_with_retry("set_server_host_internal", 9, argv,
0967ae03	390	scream, NULL);
2ce085d2	391	if (status != MR_SUCCESS) {
062079b1	392	com_err(whoami,status," while setting internal state for %s:%s",
	393	svc->service, machine);
	394	goto free_mach;
	395	}
2ce085d2	396	status = mr_update_server(svc->service, machine, svc->target,
062079b1	397	svc->script);
2ce085d2	398	if (status == MR_SUCCESS) {
67852ff1	399	argv[2] = argv[4] = "0";
062079b1	400	argv[3] = "1";
	401	free(argv[8]);
	402	argv[8] = itoa(tv.tv_sec);
	403	} else if (SOFT_FAIL(status)) {
67852ff1	404	argv[4] = "0";
062079b1	405	free(argv[6]);
	406	argv[6] = strsave(error_message(status));
	407	} else { /* HARD_FAIL */
	408	argv[2] = itoa(shost.override);
67852ff1	409	argv[4] = "0";
062079b1	410	argv[5] = itoa(status);
	411	free(argv[6]);
	412	argv[6] = strsave(error_message(status));
	413	critical_alert("DCM", "DCM updating %s:%s: %s",
	414	machine, svc->service, argv[6]);
	415	if (!strcmp(svc->type, "REPLICAT")) {
	416	char *qargv[6];
	417
	418	svc->harderror = status;
	419	svc->errmsg = strsave(argv[6]);
	420	qargv[0] = strsave(svc->service);
	421	qargv[1] = itoa(svc->dfgen);
	422	qargv[2] = itoa(svc->dfcheck);
	423	qargv[3] = strsave("0");
	424	qargv[4] = itoa(svc->harderror);
	425	qargv[5] = strsave(svc->errmsg);
2ce085d2	426	status = mr_query_with_retry("set_server_internal_flags",
0967ae03	427	6, qargv, scream, NULL);
	428	if (status)
	429	com_err(whoami, status, " setting service state again");
062079b1	430	free(qargv[0]);
	431	free(qargv[1]);
	432	free(qargv[2]);
	433	free(qargv[3]);
	434	free(qargv[4]);
	435	free(qargv[5]);
	436	close(lock_fd);
2ce085d2	437	status = mr_query_with_retry("set_server_host_internal",
0967ae03	438	9, argv,scream,NULL);
67852ff1	439	free(argv[2]);
67852ff1	440	free(argv[5]);
0967ae03	441	if (status)
0967ae03	442	com_err(whoami, status, " setting host state again");
062079b1	443	return(-1);
846841f4	444	}
846841f4	445	}
062079b1	446	close(lock_fd);
2ce085d2	447	status = mr_query_with_retry("set_server_host_internal", 9, argv,
0967ae03	448	scream, NULL);
	449	if (status)
	450	com_err(whoami, status, " setting host state again");
67852ff1	451	/* free(argv[2]);
67852ff1	452	free(argv[5]); */
846841f4	453	free_mach:
	454	free(machine);
	455	close(lock_fd);
	456	}
	457	return(0);
	458	}