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/* $OpenBSD: smtpctl.c,v 1.7 2009/01/29 12:43:25 jacekm Exp $ */
/*
* Copyright (c) 2006 Pierre-Yves Ritschard <pyr@openbsd.org>
* Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
* Copyright (c) 2003 Henning Brauer <henning@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/un.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <event.h>
#include "smtpd.h"
#include "parser.h"
__dead void usage(void);
int show_command_output(struct imsg*);
int enqueue(int, char **);
struct imsgname {
int type;
char *name;
void (*func)(struct imsg *);
};
struct imsgname imsgs[] = {
{ IMSG_CTL_SHUTDOWN, "stop", NULL },
{ IMSG_CONF_RELOAD, "reload", NULL },
{ 0, NULL, NULL }
};
struct imsgname imsgunknown = {
-1, "<unknown>", NULL
};
int proctype;
struct imsgbuf *ibuf;
int sendmail = 0;
extern char *__progname;
__dead void
usage(void)
{
extern char *__progname;
if (sendmail)
fprintf(stderr, "usage: %s [-i] rcpt [...]]\n", __progname);
else
fprintf(stderr, "usage: %s <command> [arg [...]]\n", __progname);
exit(1);
}
/* dummy function so that smtpctl does not need libevent */
void
imsg_event_add(struct imsgbuf *i)
{
/* nothing */
}
int
main(int argc, char *argv[])
{
struct sockaddr_un sun;
struct parse_result *res = NULL;
struct imsg imsg;
int ctl_sock;
int done = 0;
int n;
/* parse options */
if (strcmp(__progname, "sendmail") == 0 || strcmp(__progname, "send-mail") == 0)
sendmail = 1;
else {
/* check for root privileges */
if (geteuid())
errx(1, "need root privileges");
if ((res = parse(argc - 1, argv + 1)) == NULL)
exit(1);
/* handle "disconnected" commands */
switch (res->action) {
case SHOW_QUEUE:
show_queue(PATH_QUEUE, 0);
break;
case SHOW_RUNQUEUE:
show_queue(PATH_RUNQUEUE, 0);
break;
default:
goto connected;
}
return 0;
}
connected:
/* connect to relayd control socket */
if ((ctl_sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
err(1, "socket");
bzero(&sun, sizeof(sun));
sun.sun_family = AF_UNIX;
strlcpy(sun.sun_path, SMTPD_SOCKET, sizeof(sun.sun_path));
if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1)
err(1, "connect: %s", SMTPD_SOCKET);
if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL)
err(1, NULL);
imsg_init(ibuf, ctl_sock, NULL);
if (sendmail)
return enqueue(argc, argv);
/* process user request */
switch (res->action) {
case NONE:
usage();
/* not reached */
case SHUTDOWN:
imsg_compose(ibuf, IMSG_CTL_SHUTDOWN, 0, 0, -1, NULL, 0);
break;
case RELOAD:
imsg_compose(ibuf, IMSG_CONF_RELOAD, 0, 0, -1, NULL, 0);
break;
case PAUSE_MDA:
imsg_compose(ibuf, IMSG_MDA_PAUSE, 0, 0, -1, NULL, 0);
break;
case PAUSE_MTA:
imsg_compose(ibuf, IMSG_MTA_PAUSE, 0, 0, -1, NULL, 0);
break;
case PAUSE_SMTP:
imsg_compose(ibuf, IMSG_SMTP_PAUSE, 0, 0, -1, NULL, 0);
break;
case RESUME_MDA:
imsg_compose(ibuf, IMSG_MDA_RESUME, 0, 0, -1, NULL, 0);
break;
case RESUME_MTA:
imsg_compose(ibuf, IMSG_MDA_RESUME, 0, 0, -1, NULL, 0);
break;
case RESUME_SMTP:
imsg_compose(ibuf, IMSG_SMTP_RESUME, 0, 0, -1, NULL, 0);
break;
case MONITOR:
/* XXX */
break;
default:
err(1, "unknown request (%d)", res->action);
}
while (ibuf->w.queued)
if (msgbuf_write(&ibuf->w) < 0)
err(1, "write error");
while (!done) {
if ((n = imsg_read(ibuf)) == -1)
errx(1, "imsg_read error");
if (n == 0)
errx(1, "pipe closed");
while (!done) {
if ((n = imsg_get(ibuf, &imsg)) == -1)
errx(1, "imsg_get error");
if (n == 0)
break;
switch(res->action) {
case RELOAD:
case SHUTDOWN:
case PAUSE_MDA:
case PAUSE_MTA:
case PAUSE_SMTP:
case RESUME_MDA:
case RESUME_MTA:
case RESUME_SMTP:
done = show_command_output(&imsg);
break;
case NONE:
break;
case MONITOR:
break;
default:
err(1, "unexpected reply (%d)", res->action);
}
/* insert imsg replies switch here */
imsg_free(&imsg);
}
}
close(ctl_sock);
free(ibuf);
return (0);
}
int
show_command_output(struct imsg *imsg)
{
switch (imsg->hdr.type) {
case IMSG_CTL_OK:
printf("command succeeded\n");
break;
case IMSG_CTL_FAIL:
printf("command failed\n");
break;
default:
errx(1, "wrong message in summary: %u", imsg->hdr.type);
}
return (1);
}
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