1 /* $Cambridge: exim/src/src/malware.c,v 1.13 2005/08/02 18:24:14 tom Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003-???? */
10 /* Code for calling virus (malware) scanners. Called from acl.c. */
13 #ifdef WITH_CONTENT_SCAN
15 /* declaration of private routines */
16 int mksd_scan_packed(int sock);
18 /* SHUT_WR seems to be undefined on Unixware? */
23 #define DRWEBD_SCAN_CMD (1) /* scan file, buffer or diskfile */
24 #define DRWEBD_RETURN_VIRUSES (1<<0) /* ask daemon return to us viruses names from report */
25 #define DRWEBD_IS_MAIL (1<<19) /* say to daemon that format is "archive MAIL" */
27 #define DERR_READ_ERR (1<<0) /* read error */
28 #define DERR_NOMEMORY (1<<2) /* no memory */
29 #define DERR_TIMEOUT (1<<9) /* scan timeout has run out */
30 #define DERR_BAD_CALL (1<<15) /* wrong command */
32 /* Routine to check whether a system is big- or litte-endian.
33 Ripped from http://www.faqs.org/faqs/graphics/fileformats-faq/part4/section-7.html
34 Needed for proper kavdaemon implementation. Sigh. */
35 #define BIG_MY_ENDIAN 0
36 #define LITTLE_MY_ENDIAN 1
37 int test_byte_order(void);
38 int test_byte_order() {
39 short int word = 0x0001;
40 char *byte = (char *) &word;
41 return(byte[0] ? LITTLE_MY_ENDIAN : BIG_MY_ENDIAN);
44 uschar malware_name_buffer[256];
47 int malware(uschar **listptr) {
49 uschar *list = *listptr;
50 uschar *av_scanner_work = av_scanner;
52 uschar scanner_name_buffer[16];
53 uschar *malware_regex;
54 uschar malware_regex_buffer[64];
55 uschar malware_regex_default[] = ".+";
56 unsigned long mbox_size;
62 /* make sure the eml mbox file is spooled up */
63 mbox_file = spool_mbox(&mbox_size);
64 if (mbox_file == NULL) {
65 /* error while spooling */
66 log_write(0, LOG_MAIN|LOG_PANIC,
67 "malware acl condition: error while creating mbox spool file");
70 /* none of our current scanners need the mbox
71 file as a stream, so we can close it right away */
72 (void)fclose(mbox_file);
74 /* extract the malware regex to match against from the option list */
75 if ((malware_regex = string_nextinlist(&list, &sep,
77 sizeof(malware_regex_buffer))) != NULL) {
79 /* parse 1st option */
80 if ( (strcmpic(malware_regex,US"false") == 0) ||
81 (Ustrcmp(malware_regex,"0") == 0) ) {
82 /* explicitly no matching */
86 /* special cases (match anything except empty) */
87 if ( (strcmpic(malware_regex,US"true") == 0) ||
88 (Ustrcmp(malware_regex,"*") == 0) ||
89 (Ustrcmp(malware_regex,"1") == 0) ) {
90 malware_regex = malware_regex_default;
94 /* empty means "don't match anything" */
98 /* Reset sep that is set by previous string_nextinlist() call */
101 /* compile the regex, see if it works */
102 re = pcre_compile(CS malware_regex, PCRE_COPT, (const char **)&rerror, &roffset, NULL);
104 log_write(0, LOG_MAIN|LOG_PANIC,
105 "malware acl condition: regular expression error in '%s': %s at offset %d", malware_regex, rerror, roffset);
109 /* if av_scanner starts with a dollar, expand it first */
110 if (*av_scanner == '$') {
111 av_scanner_work = expand_string(av_scanner);
112 if (av_scanner_work == NULL) {
113 log_write(0, LOG_MAIN|LOG_PANIC,
114 "malware acl condition: av_scanner starts with $, but expansion failed: %s", expand_string_message);
118 debug_printf("Expanded av_scanner global: %s\n", av_scanner_work);
119 /* disable result caching in this case */
125 /* Do not scan twice. */
126 if (malware_ok == 0) {
128 /* find the scanner type from the av_scanner option */
129 if ((scanner_name = string_nextinlist(&av_scanner_work, &sep,
131 sizeof(scanner_name_buffer))) == NULL) {
132 /* no scanner given */
133 log_write(0, LOG_MAIN|LOG_PANIC,
134 "malware acl condition: av_scanner configuration variable is empty");
138 /* "drweb" scanner type ----------------------------------------------- */
139 /* v0.1 - added support for tcp sockets */
140 /* v0.0 - initial release -- support for unix sockets */
141 if (strcmpic(scanner_name,US"drweb") == 0) {
142 uschar *drweb_options;
143 uschar drweb_options_buffer[1024];
144 uschar drweb_options_default[] = "/usr/local/drweb/run/drwebd.sock";
145 struct sockaddr_un server;
146 int sock, result, ovector[30];
147 unsigned int port, fsize;
148 uschar tmpbuf[1024], *drweb_fbuf;
149 uschar scanrequest[1024];
150 uschar drweb_match_string[128];
151 int drweb_rc, drweb_cmd, drweb_flags = 0x0000, drweb_fd,
152 drweb_vnum, drweb_slen, drweb_fin = 0x0000;
154 uschar hostname[256];
159 if ((drweb_options = string_nextinlist(&av_scanner_work, &sep,
160 drweb_options_buffer, sizeof(drweb_options_buffer))) == NULL) {
161 /* no options supplied, use default options */
162 drweb_options = drweb_options_default;
165 if (*drweb_options != '/') {
167 /* extract host and port part */
168 if( sscanf(CS drweb_options, "%s %u", hostname, &port) != 2 ) {
169 log_write(0, LOG_MAIN|LOG_PANIC,
170 "malware acl condition: drweb: invalid socket '%s'", drweb_options);
174 /* Lookup the host */
175 if((he = gethostbyname(CS hostname)) == 0) {
176 log_write(0, LOG_MAIN|LOG_PANIC,
177 "malware acl condition: drweb: failed to lookup host '%s'", hostname);
181 in = *(struct in_addr *) he->h_addr_list[0];
183 /* Open the drwebd TCP socket */
184 if ( (sock = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
185 log_write(0, LOG_MAIN|LOG_PANIC,
186 "malware acl condition: drweb: unable to acquire socket (%s)",
191 if (ip_connect(sock, AF_INET, (uschar*)inet_ntoa(in), port, 5) < 0) {
193 log_write(0, LOG_MAIN|LOG_PANIC,
194 "malware acl condition: drweb: connection to %s, port %u failed (%s)",
195 inet_ntoa(in), port, strerror(errno));
199 /* prepare variables */
200 drweb_cmd = htonl(DRWEBD_SCAN_CMD);
201 drweb_flags = htonl(DRWEBD_RETURN_VIRUSES | DRWEBD_IS_MAIL);
202 (void)string_format(scanrequest, 1024,CS"%s/scan/%s/%s.eml",
203 spool_directory, message_id, message_id);
206 drweb_fd = open(CS scanrequest, O_RDONLY);
207 if (drweb_fd == -1) {
209 log_write(0, LOG_MAIN|LOG_PANIC,
210 "malware acl condition: drweb: can't open spool file %s: %s",
211 scanrequest, strerror(errno));
214 fsize = lseek(drweb_fd, 0, SEEK_END);
217 (void)close(drweb_fd);
218 log_write(0, LOG_MAIN|LOG_PANIC,
219 "malware acl condition: drweb: can't seek spool file %s: %s",
220 scanrequest, strerror(errno));
223 drweb_slen = htonl(fsize);
224 lseek(drweb_fd, 0, SEEK_SET);
226 /* send scan request */
227 if ((send(sock, &drweb_cmd, sizeof(drweb_cmd), 0) < 0) ||
228 (send(sock, &drweb_flags, sizeof(drweb_flags), 0) < 0) ||
229 (send(sock, &drweb_fin, sizeof(drweb_fin), 0) < 0) ||
230 (send(sock, &drweb_slen, sizeof(drweb_slen), 0) < 0)) {
232 (void)close(drweb_fd);
233 log_write(0, LOG_MAIN|LOG_PANIC,
234 "malware acl condition: drweb: unable to send commands to socket (%s)", drweb_options);
238 drweb_fbuf = (uschar *) malloc (fsize);
241 (void)close(drweb_fd);
242 log_write(0, LOG_MAIN|LOG_PANIC,
243 "malware acl condition: drweb: unable to allocate memory %u for file (%s)",
248 result = read (drweb_fd, drweb_fbuf, fsize);
251 (void)close(drweb_fd);
253 log_write(0, LOG_MAIN|LOG_PANIC,
254 "malware acl condition: drweb: can't read spool file %s: %s",
255 scanrequest, strerror(errno));
258 (void)close(drweb_fd);
260 /* send file body to socket */
261 if (send(sock, drweb_fbuf, fsize, 0) < 0) {
264 log_write(0, LOG_MAIN|LOG_PANIC,
265 "malware acl condition: drweb: unable to send file body to socket (%s)", drweb_options);
268 (void)close(drweb_fd);
271 /* open the drwebd UNIX socket */
272 sock = socket(AF_UNIX, SOCK_STREAM, 0);
274 log_write(0, LOG_MAIN|LOG_PANIC,
275 "malware acl condition: drweb: can't open UNIX socket");
278 server.sun_family = AF_UNIX;
279 Ustrcpy(server.sun_path, drweb_options);
280 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
282 log_write(0, LOG_MAIN|LOG_PANIC,
283 "malware acl condition: drweb: unable to connect to socket (%s). errno=%d", drweb_options, errno);
287 /* prepare variables */
288 drweb_cmd = htonl(DRWEBD_SCAN_CMD);
289 drweb_flags = htonl(DRWEBD_RETURN_VIRUSES | DRWEBD_IS_MAIL);
290 (void)string_format(scanrequest, 1024,CS"%s/scan/%s/%s.eml", spool_directory, message_id, message_id);
291 drweb_slen = htonl(Ustrlen(scanrequest));
293 /* send scan request */
294 if ((send(sock, &drweb_cmd, sizeof(drweb_cmd), 0) < 0) ||
295 (send(sock, &drweb_flags, sizeof(drweb_flags), 0) < 0) ||
296 (send(sock, &drweb_slen, sizeof(drweb_slen), 0) < 0) ||
297 (send(sock, scanrequest, Ustrlen(scanrequest), 0) < 0) ||
298 (send(sock, &drweb_fin, sizeof(drweb_fin), 0) < 0)) {
300 log_write(0, LOG_MAIN|LOG_PANIC,
301 "malware acl condition: drweb: unable to send commands to socket (%s)", drweb_options);
306 /* wait for result */
307 if ((bread = recv(sock, &drweb_rc, sizeof(drweb_rc), 0) != sizeof(drweb_rc))) {
309 log_write(0, LOG_MAIN|LOG_PANIC,
310 "malware acl condition: drweb: unable to read return code");
313 drweb_rc = ntohl(drweb_rc);
315 if ((bread = recv(sock, &drweb_vnum, sizeof(drweb_vnum), 0) != sizeof(drweb_vnum))) {
317 log_write(0, LOG_MAIN|LOG_PANIC,
318 "malware acl condition: drweb: unable to read the number of viruses");
321 drweb_vnum = ntohl(drweb_vnum);
323 /* "virus(es) found" if virus number is > 0 */
327 uschar pre_malware_nb[256];
329 malware_name = malware_name_buffer;
331 /* setup default virus name */
332 Ustrcpy(malware_name_buffer,"unknown");
334 /* read and concatenate virus names into one string */
335 for (i=0;i<drweb_vnum;i++)
337 /* read the size of report */
338 if ((bread = recv(sock, &drweb_slen, sizeof(drweb_slen), 0) != sizeof(drweb_slen))) {
340 log_write(0, LOG_MAIN|LOG_PANIC,
341 "malware acl condition: drweb: cannot read report size");
344 drweb_slen = ntohl(drweb_slen);
346 /* read report body */
347 if ((bread = recv(sock, tmpbuf, drweb_slen, 0)) != drweb_slen) {
349 log_write(0, LOG_MAIN|LOG_PANIC,
350 "malware acl condition: drweb: cannot read report string");
353 tmpbuf[drweb_slen] = '\0';
355 /* set up match regex, depends on retcode */
356 Ustrcpy(drweb_match_string, "infected\\swith\\s*(.+?)$");
358 drweb_re = pcre_compile( CS drweb_match_string,
360 (const char **)&rerror,
364 /* try matcher on the line, grab substring */
365 result = pcre_exec(drweb_re, NULL, CS tmpbuf, Ustrlen(tmpbuf), 0, 0, ovector, 30);
367 pcre_copy_substring(CS tmpbuf, ovector, result, 1, CS pre_malware_nb, 255);
369 /* the first name we just copy to malware_name */
371 Ustrcpy(CS malware_name_buffer, CS pre_malware_nb);
373 /* concatenate each new virus name to previous */
374 int slen = Ustrlen(malware_name_buffer);
375 if (slen < (slen+Ustrlen(pre_malware_nb))) {
376 Ustrcat(malware_name_buffer, "/");
377 Ustrcat(malware_name_buffer, pre_malware_nb);
383 char *drweb_s = NULL;
385 if (drweb_rc & DERR_READ_ERR) drweb_s = "read error";
386 if (drweb_rc & DERR_NOMEMORY) drweb_s = "no memory";
387 if (drweb_rc & DERR_TIMEOUT) drweb_s = "timeout";
388 if (drweb_rc & DERR_BAD_CALL) drweb_s = "wrong command";
389 /* retcodes DERR_SYMLINK, DERR_NO_REGFILE, DERR_SKIPPED.
390 * DERR_TOO_BIG, DERR_TOO_COMPRESSED, DERR_SPAM,
391 * DERR_CRC_ERROR, DERR_READSOCKET, DERR_WRITE_ERR
392 * and others are ignored */
394 log_write(0, LOG_MAIN|LOG_PANIC,
395 "malware acl condition: drweb: drweb daemon retcode 0x%x (%s)", drweb_rc, drweb_s);
404 /* ----------------------------------------------------------------------- */
405 else if (strcmpic(scanner_name,US"aveserver") == 0) {
407 uschar kav_options_buffer[1024];
408 uschar kav_options_default[] = "/var/run/aveserver";
410 struct sockaddr_un server;
414 if ((kav_options = string_nextinlist(&av_scanner_work, &sep,
416 sizeof(kav_options_buffer))) == NULL) {
417 /* no options supplied, use default options */
418 kav_options = kav_options_default;
421 /* open the aveserver socket */
422 sock = socket(AF_UNIX, SOCK_STREAM, 0);
424 log_write(0, LOG_MAIN|LOG_PANIC,
425 "malware acl condition: can't open UNIX socket.");
428 server.sun_family = AF_UNIX;
429 Ustrcpy(server.sun_path, kav_options);
430 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
432 log_write(0, LOG_MAIN|LOG_PANIC,
433 "malware acl condition: unable to connect to aveserver UNIX socket (%s). errno=%d", kav_options, errno);
437 /* read aveserver's greeting and see if it is ready (2xx greeting) */
438 recv_line(sock, buf, 32768);
441 /* aveserver is having problems */
443 log_write(0, LOG_MAIN|LOG_PANIC,
444 "malware acl condition: aveserver is unavailable (Responded: %s).", ((buf[0] != 0) ? buf : (uschar *)"nothing") );
448 /* prepare our command */
449 (void)string_format(buf, 32768, "SCAN bPQRSTUW %s/scan/%s/%s.eml\r\n", spool_directory, message_id, message_id);
452 if (send(sock, buf, Ustrlen(buf), 0) < 0) {
454 log_write(0, LOG_MAIN|LOG_PANIC,
455 "malware acl condition: unable to write to aveserver UNIX socket (%s)", kav_options);
461 /* read response lines, find malware name and final response */
462 while (recv_line(sock, buf, 32768) > 0) {
463 debug_printf("aveserver: %s\n", buf);
466 } else if (buf[0] == '5') {
467 /* aveserver is having problems */
468 log_write(0, LOG_MAIN|LOG_PANIC,
469 "malware acl condition: unable to scan file %s/scan/%s/%s.eml (Responded: %s).",
470 spool_directory, message_id, message_id, buf);
473 } else if (Ustrncmp(buf,"322",3) == 0) {
474 uschar *p = Ustrchr(&buf[4],' ');
476 Ustrcpy(malware_name_buffer,&buf[4]);
477 malware_name = malware_name_buffer;
481 /* prepare our command */
482 (void)string_format(buf, 32768, "quit\r\n");
485 if (send(sock, buf, Ustrlen(buf), 0) < 0) {
487 log_write(0, LOG_MAIN|LOG_PANIC,
488 "malware acl condition: unable to write to aveserver UNIX socket (%s)", kav_options);
492 /* read aveserver's greeting and see if it is ready (2xx greeting) */
493 recv_line(sock, buf, 32768);
496 /* aveserver is having problems */
498 log_write(0, LOG_MAIN|LOG_PANIC,
499 "malware acl condition: unable to quit aveserver dialogue (Responded: %s).", ((buf[0] != 0) ? buf : (uschar *)"nothing") );
505 if (result == DEFER) return DEFER;
507 /* "fsecure" scanner type ------------------------------------------------- */
508 else if (strcmpic(scanner_name,US"fsecure") == 0) {
509 uschar *fsecure_options;
510 uschar fsecure_options_buffer[1024];
511 uschar fsecure_options_default[] = "/var/run/.fsav";
512 struct sockaddr_un server;
513 int sock, i, j, bread = 0;
514 uschar file_name[1024];
515 uschar av_buffer[1024];
517 static uschar *cmdoptions[] = { US"CONFIGURE\tARCHIVE\t1\n",
518 US"CONFIGURE\tTIMEOUT\t0\n",
519 US"CONFIGURE\tMAXARCH\t5\n",
520 US"CONFIGURE\tMIME\t1\n" };
523 if ((fsecure_options = string_nextinlist(&av_scanner_work, &sep,
524 fsecure_options_buffer,
525 sizeof(fsecure_options_buffer))) == NULL) {
526 /* no options supplied, use default options */
527 fsecure_options = fsecure_options_default;
530 /* open the fsecure socket */
531 sock = socket(AF_UNIX, SOCK_STREAM, 0);
533 log_write(0, LOG_MAIN|LOG_PANIC,
534 "malware acl condition: unable to open fsecure socket %s (%s)",
535 fsecure_options, strerror(errno));
538 server.sun_family = AF_UNIX;
539 Ustrcpy(server.sun_path, fsecure_options);
540 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
542 log_write(0, LOG_MAIN|LOG_PANIC,
543 "malware acl condition: unable to connect to fsecure socket %s (%s)",
544 fsecure_options, strerror(errno));
549 memset(av_buffer, 0, sizeof(av_buffer));
550 for (i=0; i != 4; i++) {
551 /* debug_printf("send option \"%s\"",cmdoptions[i]); */
552 if (write(sock, cmdoptions[i], Ustrlen(cmdoptions[i])) < 0) {
554 log_write(0, LOG_MAIN|LOG_PANIC,
555 "malware acl condition: unable to write fsecure option %d to %s (%s)",
556 i, fsecure_options, strerror(errno));
560 bread = read(sock, av_buffer, sizeof(av_buffer));
561 if (bread >0) av_buffer[bread]='\0';
564 log_write(0, LOG_MAIN|LOG_PANIC,
565 "malware acl condition: unable to read fsecure answer %d (%s)", i, strerror(errno));
568 for (j=0;j<bread;j++) if((av_buffer[j]=='\r')||(av_buffer[j]=='\n')) av_buffer[j] ='@';
569 /* debug_printf("read answer %d read=%d \"%s\"\n", i, bread, av_buffer ); */
570 /* while (Ustrstr(av_buffer, "OK\tServer configured.@") == NULL); */
573 /* pass the mailfile to fsecure */
574 (void)string_format(file_name,1024,"SCAN\t%s/scan/%s/%s.eml\n", spool_directory, message_id, message_id);
575 /* debug_printf("send scan %s",file_name); */
576 if (write(sock, file_name, Ustrlen(file_name)) < 0) {
578 log_write(0, LOG_MAIN|LOG_PANIC,
579 "malware acl condition: unable to write fsecure scan to %s (%s)",
580 fsecure_options, strerror(errno));
585 /* todo also SUSPICION\t */
586 fs_inf = pcre_compile("\\S{0,5}INFECTED\\t[^\\t]*\\t([^\\t]+)\\t\\S*$", PCRE_COPT, (const char **)&rerror, &roffset, NULL);
588 /* read report, linewise */
592 memset(av_buffer, 0, sizeof(av_buffer));
594 bread=read(sock, &av_buffer[i], 1);
597 log_write(0, LOG_MAIN|LOG_PANIC,
598 "malware acl condition: unable to read fsecure result (%s)", strerror(errno));
603 while ((i < sizeof(av_buffer)-1 ) && (av_buffer[i-1] != '\n'));
604 av_buffer[i-1] = '\0';
605 /* debug_printf("got line \"%s\"\n",av_buffer); */
607 /* Really search for virus again? */
608 if (malware_name == NULL) {
609 /* try matcher on the line, grab substring */
610 i = pcre_exec(fs_inf, NULL, CS av_buffer, Ustrlen(av_buffer), 0, 0, ovector, 30);
613 pcre_copy_substring(CS av_buffer, ovector, i, 1, CS malware_name_buffer, 255);
614 malware_name = malware_name_buffer;
618 while (Ustrstr(av_buffer, "OK\tScan ok.") == NULL);
621 /* ----------------------------------------------------------------------- */
623 /* "kavdaemon" scanner type ------------------------------------------------ */
624 else if (strcmpic(scanner_name,US"kavdaemon") == 0) {
626 uschar kav_options_buffer[1024];
627 uschar kav_options_default[] = "/var/run/AvpCtl";
628 struct sockaddr_un server;
632 uschar scanrequest[1024];
633 uschar kav_match_string[128];
635 unsigned long kav_reportlen, bread;
638 if ((kav_options = string_nextinlist(&av_scanner_work, &sep,
640 sizeof(kav_options_buffer))) == NULL) {
641 /* no options supplied, use default options */
642 kav_options = kav_options_default;
645 /* open the kavdaemon socket */
646 sock = socket(AF_UNIX, SOCK_STREAM, 0);
648 log_write(0, LOG_MAIN|LOG_PANIC,
649 "malware acl condition: can't open UNIX socket.");
652 server.sun_family = AF_UNIX;
653 Ustrcpy(server.sun_path, kav_options);
654 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
656 log_write(0, LOG_MAIN|LOG_PANIC,
657 "malware acl condition: unable to connect to kavdaemon UNIX socket (%s). errno=%d", kav_options, errno);
661 /* get current date and time, build scan request */
663 strftime(CS tmpbuf, sizeof(tmpbuf), "<0>%d %b %H:%M:%S:%%s/scan/%%s", localtime(&t));
664 (void)string_format(scanrequest, 1024,CS tmpbuf, spool_directory, message_id);
666 /* send scan request */
667 if (send(sock, scanrequest, Ustrlen(scanrequest)+1, 0) < 0) {
669 log_write(0, LOG_MAIN|LOG_PANIC,
670 "malware acl condition: unable to write to kavdaemon UNIX socket (%s)", kav_options);
674 /* wait for result */
675 if ((bread = recv(sock, tmpbuf, 2, 0) != 2)) {
677 log_write(0, LOG_MAIN|LOG_PANIC,
678 "malware acl condition: unable to read 2 bytes from kavdaemon socket.");
682 /* get errorcode from one nibble */
683 if (test_byte_order() == LITTLE_MY_ENDIAN) {
684 kav_rc = tmpbuf[0] & 0x0F;
687 kav_rc = tmpbuf[1] & 0x0F;
690 /* improper kavdaemon configuration */
691 if ( (kav_rc == 5) || (kav_rc == 6) ) {
693 log_write(0, LOG_MAIN|LOG_PANIC,
694 "malware acl condition: please reconfigure kavdaemon to NOT disinfect or remove infected files.");
700 log_write(0, LOG_MAIN|LOG_PANIC,
701 "malware acl condition: kavdaemon reported 'scanning not completed' (code 1).");
707 log_write(0, LOG_MAIN|LOG_PANIC,
708 "malware acl condition: kavdaemon reported 'kavdaemon damaged' (code 7).");
712 /* code 8 is not handled, since it is ambigous. It appears mostly on
713 bounces where part of a file has been cut off */
715 /* "virus found" return codes (2-4) */
716 if ((kav_rc > 1) && (kav_rc < 5)) {
719 /* setup default virus name */
720 Ustrcpy(malware_name_buffer,"unknown");
721 malware_name = malware_name_buffer;
723 if (test_byte_order() == LITTLE_MY_ENDIAN) {
724 report_flag = tmpbuf[1];
727 report_flag = tmpbuf[0];
730 /* read the report, if available */
731 if( report_flag == 1 ) {
732 /* read report size */
733 if ((bread = recv(sock, &kav_reportlen, 4, 0)) != 4) {
735 log_write(0, LOG_MAIN|LOG_PANIC,
736 "malware acl condition: cannot read report size from kavdaemon");
740 /* it's possible that avp returns av_buffer[1] == 1 but the
741 reportsize is 0 (!?) */
742 if (kav_reportlen > 0) {
743 /* set up match regex, depends on retcode */
745 Ustrcpy(kav_match_string, "suspicion:\\s*(.+?)\\s*$");
747 Ustrcpy(kav_match_string, "infected:\\s*(.+?)\\s*$");
749 kav_re = pcre_compile( CS kav_match_string,
751 (const char **)&rerror,
755 /* read report, linewise */
756 while (kav_reportlen > 0) {
761 while ( recv(sock, &tmpbuf[bread], 1, 0) == 1 ) {
763 if ( (tmpbuf[bread] == '\n') || (bread > 1021) ) break;
767 tmpbuf[bread] = '\0';
769 /* try matcher on the line, grab substring */
770 result = pcre_exec(kav_re, NULL, CS tmpbuf, Ustrlen(tmpbuf), 0, 0, ovector, 30);
772 pcre_copy_substring(CS tmpbuf, ovector, result, 1, CS malware_name_buffer, 255);
786 /* ----------------------------------------------------------------------- */
789 /* "cmdline" scanner type ------------------------------------------------ */
790 else if (strcmpic(scanner_name,US"cmdline") == 0) {
791 uschar *cmdline_scanner;
792 uschar cmdline_scanner_buffer[1024];
793 uschar *cmdline_trigger;
794 uschar cmdline_trigger_buffer[1024];
795 const pcre *cmdline_trigger_re;
796 uschar *cmdline_regex;
797 uschar cmdline_regex_buffer[1024];
798 const pcre *cmdline_regex_re;
799 uschar file_name[1024];
800 uschar commandline[1024];
801 void (*eximsigchld)(int);
802 void (*eximsigpipe)(int);
803 FILE *scanner_out = NULL;
804 FILE *scanner_record = NULL;
805 uschar linebuffer[32767];
810 /* find scanner command line */
811 if ((cmdline_scanner = string_nextinlist(&av_scanner_work, &sep,
812 cmdline_scanner_buffer,
813 sizeof(cmdline_scanner_buffer))) == NULL) {
814 /* no command line supplied */
815 log_write(0, LOG_MAIN|LOG_PANIC,
816 "malware acl condition: missing commandline specification for cmdline scanner type.");
820 /* find scanner output trigger */
821 if ((cmdline_trigger = string_nextinlist(&av_scanner_work, &sep,
822 cmdline_trigger_buffer,
823 sizeof(cmdline_trigger_buffer))) == NULL) {
824 /* no trigger regex supplied */
825 log_write(0, LOG_MAIN|LOG_PANIC,
826 "malware acl condition: missing trigger specification for cmdline scanner type.");
830 /* precompile trigger regex */
831 cmdline_trigger_re = pcre_compile(CS cmdline_trigger, PCRE_COPT, (const char **)&rerror, &roffset, NULL);
832 if (cmdline_trigger_re == NULL) {
833 log_write(0, LOG_MAIN|LOG_PANIC,
834 "malware acl condition: regular expression error in '%s': %s at offset %d", cmdline_trigger_re, rerror, roffset);
838 /* find scanner name regex */
839 if ((cmdline_regex = string_nextinlist(&av_scanner_work, &sep,
840 cmdline_regex_buffer,
841 sizeof(cmdline_regex_buffer))) == NULL) {
842 /* no name regex supplied */
843 log_write(0, LOG_MAIN|LOG_PANIC,
844 "malware acl condition: missing virus name regex specification for cmdline scanner type.");
848 /* precompile name regex */
849 cmdline_regex_re = pcre_compile(CS cmdline_regex, PCRE_COPT, (const char **)&rerror, &roffset, NULL);
850 if (cmdline_regex_re == NULL) {
851 log_write(0, LOG_MAIN|LOG_PANIC,
852 "malware acl condition: regular expression error in '%s': %s at offset %d", cmdline_regex_re, rerror, roffset);
856 /* prepare scanner call */
857 (void)string_format(file_name,1024,"%s/scan/%s", spool_directory, message_id);
858 (void)string_format(commandline,1024, CS cmdline_scanner,file_name);
859 /* redirect STDERR too */
860 Ustrcat(commandline," 2>&1");
862 /* store exims signal handlers */
863 eximsigchld = signal(SIGCHLD,SIG_DFL);
864 eximsigpipe = signal(SIGPIPE,SIG_DFL);
866 scanner_out = popen(CS commandline,"r");
867 if (scanner_out == NULL) {
868 log_write(0, LOG_MAIN|LOG_PANIC,
869 "malware acl condition: calling cmdline scanner (%s) failed: %s.", commandline, strerror(errno));
870 signal(SIGCHLD,eximsigchld);
871 signal(SIGPIPE,eximsigpipe);
875 (void)string_format(file_name,1024,"%s/scan/%s/%s_scanner_output", spool_directory, message_id, message_id);
876 scanner_record = fopen(CS file_name,"wb");
878 if (scanner_record == NULL) {
879 log_write(0, LOG_MAIN|LOG_PANIC,
880 "malware acl condition: opening scanner output file (%s) failed: %s.", file_name, strerror(errno));
882 signal(SIGCHLD,eximsigchld);
883 signal(SIGPIPE,eximsigpipe);
887 /* look for trigger while recording output */
888 while(fgets(CS linebuffer,32767,scanner_out) != NULL) {
889 if ( Ustrlen(linebuffer) > fwrite(linebuffer, 1, Ustrlen(linebuffer), scanner_record) ) {
891 log_write(0, LOG_MAIN|LOG_PANIC,
892 "malware acl condition: short write on scanner output file (%s).", file_name);
894 signal(SIGCHLD,eximsigchld);
895 signal(SIGPIPE,eximsigpipe);
898 /* try trigger match */
899 if (!trigger && regex_match_and_setup(cmdline_trigger_re, linebuffer, 0, -1))
903 (void)fclose(scanner_record);
905 signal(SIGCHLD,eximsigchld);
906 signal(SIGPIPE,eximsigpipe);
909 /* setup default virus name */
910 Ustrcpy(malware_name_buffer,"unknown");
911 malware_name = malware_name_buffer;
913 /* re-open the scanner output file, look for name match */
914 scanner_record = fopen(CS file_name,"rb");
915 while(fgets(CS linebuffer,32767,scanner_record) != NULL) {
917 result = pcre_exec(cmdline_regex_re, NULL, CS linebuffer, Ustrlen(linebuffer), 0, 0, ovector, 30);
919 pcre_copy_substring(CS linebuffer, ovector, result, 1, CS malware_name_buffer, 255);
922 (void)fclose(scanner_record);
929 /* ----------------------------------------------------------------------- */
932 /* "sophie" scanner type ------------------------------------------------- */
933 else if (strcmpic(scanner_name,US"sophie") == 0) {
934 uschar *sophie_options;
935 uschar sophie_options_buffer[1024];
936 uschar sophie_options_default[] = "/var/run/sophie";
938 struct sockaddr_un server;
940 uschar file_name[1024];
941 uschar av_buffer[1024];
943 if ((sophie_options = string_nextinlist(&av_scanner_work, &sep,
944 sophie_options_buffer,
945 sizeof(sophie_options_buffer))) == NULL) {
946 /* no options supplied, use default options */
947 sophie_options = sophie_options_default;
950 /* open the sophie socket */
951 sock = socket(AF_UNIX, SOCK_STREAM, 0);
953 log_write(0, LOG_MAIN|LOG_PANIC,
954 "malware acl condition: can't open UNIX socket.");
957 server.sun_family = AF_UNIX;
958 Ustrcpy(server.sun_path, sophie_options);
959 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
961 log_write(0, LOG_MAIN|LOG_PANIC,
962 "malware acl condition: unable to connect to sophie UNIX socket (%s). errno=%d", sophie_options, errno);
966 /* pass the scan directory to sophie */
967 (void)string_format(file_name,1024,"%s/scan/%s", spool_directory, message_id);
968 if (write(sock, file_name, Ustrlen(file_name)) < 0) {
970 log_write(0, LOG_MAIN|LOG_PANIC,
971 "malware acl condition: unable to write to sophie UNIX socket (%s)", sophie_options);
975 (void)write(sock, "\n", 1);
977 /* wait for result */
978 memset(av_buffer, 0, sizeof(av_buffer));
979 if ((!(bread = read(sock, av_buffer, sizeof(av_buffer))) > 0)) {
981 log_write(0, LOG_MAIN|LOG_PANIC,
982 "malware acl condition: unable to read from sophie UNIX socket (%s)", sophie_options);
989 if (av_buffer[0] == '1') {
990 if (Ustrchr(av_buffer, '\n')) *Ustrchr(av_buffer, '\n') = '\0';
991 Ustrcpy(malware_name_buffer,&av_buffer[2]);
992 malware_name = malware_name_buffer;
994 else if (!strncmp(CS av_buffer, "-1", 2)) {
995 log_write(0, LOG_MAIN|LOG_PANIC,
996 "malware acl condition: malware acl condition: sophie reported error");
1000 /* all ok, no virus */
1001 malware_name = NULL;
1004 /* ----------------------------------------------------------------------- */
1007 /* "clamd" scanner type ------------------------------------------------- */
1008 /* This code was contributed by David Saez */
1009 else if (strcmpic(scanner_name,US"clamd") == 0) {
1010 uschar *clamd_options;
1011 uschar clamd_options_buffer[1024];
1012 uschar clamd_options_default[] = "/tmp/clamd";
1014 struct sockaddr_un server;
1017 uschar file_name[1024];
1018 uschar av_buffer[1024];
1019 uschar hostname[256];
1022 uschar *clamd_options2;
1023 uschar clamd_options2_buffer[1024];
1024 uschar clamd_options2_default[] = "";
1025 uschar av_buffer2[1024];
1026 uschar *clamav_fbuf;
1027 uschar scanrequest[1024];
1028 int sockData, clam_fd, result;
1031 if ((clamd_options = string_nextinlist(&av_scanner_work, &sep,
1032 clamd_options_buffer,
1033 sizeof(clamd_options_buffer))) == NULL) {
1034 /* no options supplied, use default options */
1035 clamd_options = clamd_options_default;
1037 if ((clamd_options2 = string_nextinlist(&av_scanner_work, &sep,
1038 clamd_options2_buffer,
1039 sizeof(clamd_options2_buffer))) == NULL) {
1040 clamd_options2 = clamd_options2_default;
1043 /* socket does not start with '/' -> network socket */
1044 if (*clamd_options != '/') {
1046 /* extract host and port part */
1047 if( sscanf(CS clamd_options, "%s %u", hostname, &port) != 2 ) {
1048 log_write(0, LOG_MAIN|LOG_PANIC,
1049 "malware acl condition: clamd: invalid socket '%s'", clamd_options);
1053 /* Lookup the host */
1054 if((he = gethostbyname(CS hostname)) == 0) {
1055 log_write(0, LOG_MAIN|LOG_PANIC,
1056 "malware acl condition: clamd: failed to lookup host '%s'", hostname);
1060 in = *(struct in_addr *) he->h_addr_list[0];
1062 /* Open the ClamAV Socket */
1063 if ( (sock = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
1064 log_write(0, LOG_MAIN|LOG_PANIC,
1065 "malware acl condition: clamd: unable to acquire socket (%s)",
1070 if (ip_connect(sock, AF_INET, (uschar*)inet_ntoa(in), port, 5) < 0) {
1072 log_write(0, LOG_MAIN|LOG_PANIC,
1073 "malware acl condition: clamd: connection to %s, port %u failed (%s)",
1074 inet_ntoa(in), port, strerror(errno));
1078 if (strcmpic(clamd_options2,US"local") == 0) {
1080 /* Pass the string to ClamAV (7 = "SCAN \n" + \0) */
1082 (void)string_format(file_name,1024,"SCAN %s/scan/%s\n", spool_directory, message_id);
1084 if (send(sock, file_name, Ustrlen(file_name), 0) < 0) {
1086 log_write(0, LOG_MAIN|LOG_PANIC,"malware acl condition: clamd: unable to write to socket (%s)",
1092 /* Pass the string to ClamAV (7 = "STREAM\n") */
1094 if (send(sock, "STREAM\n", 7, 0) < 0) {
1096 log_write(0, LOG_MAIN|LOG_PANIC,"malware acl condition: clamd: unable to write to socket (%s)",
1100 memset(av_buffer2, 0, sizeof(av_buffer2));
1101 bread = read(sock, av_buffer2, sizeof(av_buffer2));
1104 log_write(0, LOG_MAIN|LOG_PANIC,
1105 "malware acl condition: clamd: unable to read PORT from socket (%s)",
1110 if (bread == sizeof(av_buffer)) {
1111 log_write(0, LOG_MAIN|LOG_PANIC,
1112 "malware acl condition: clamd: buffer too small");
1116 if (!(*av_buffer2)) {
1117 log_write(0, LOG_MAIN|LOG_PANIC,
1118 "malware acl condition: clamd: ClamAV returned null");
1122 av_buffer2[bread] = '\0';
1123 if( sscanf(CS av_buffer2, "PORT %u\n", &port) != 1 ) {
1124 log_write(0, LOG_MAIN|LOG_PANIC,
1125 "malware acl condition: clamd: Expected port information from clamd, got '%s'", av_buffer2);
1129 if ( (sockData = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
1130 log_write(0, LOG_MAIN|LOG_PANIC,
1131 "malware acl condition: clamd: unable to acquire socket (%s)",
1136 if (ip_connect(sockData, AF_INET, (uschar*)inet_ntoa(in), port, 5) < 0) {
1137 (void)close(sockData);
1138 log_write(0, LOG_MAIN|LOG_PANIC,
1139 "malware acl condition: clamd: connection to %s, port %u failed (%s)",
1140 inet_ntoa(in), port, strerror(errno));
1144 (void)string_format(scanrequest, 1024,CS"%s/scan/%s/%s.eml",
1145 spool_directory, message_id, message_id);
1147 /* calc file size */
1148 clam_fd = open(CS scanrequest, O_RDONLY);
1149 if (clam_fd == -1) {
1150 log_write(0, LOG_MAIN|LOG_PANIC,
1151 "malware acl condition: clamd: can't open spool file %s: %s",
1152 scanrequest, strerror(errno));
1155 fsize = lseek(clam_fd, 0, SEEK_END);
1157 log_write(0, LOG_MAIN|LOG_PANIC,
1158 "malware acl condition: clamd: can't seek spool file %s: %s",
1159 scanrequest, strerror(errno));
1162 lseek(clam_fd, 0, SEEK_SET);
1164 clamav_fbuf = (uschar *) malloc (fsize);
1166 (void)close(sockData);
1167 (void)close(clam_fd);
1168 log_write(0, LOG_MAIN|LOG_PANIC,
1169 "malware acl condition: clamd: unable to allocate memory %u for file (%s)",
1170 fsize, scanrequest);
1174 result = read (clam_fd, clamav_fbuf, fsize);
1176 (void)close(sockData);
1177 (void)close(clam_fd);
1179 log_write(0, LOG_MAIN|LOG_PANIC,
1180 "malware acl condition: clamd: can't read spool file %s: %s",
1181 scanrequest, strerror(errno));
1184 (void)close(clam_fd);
1186 /* send file body to socket */
1187 if (send(sockData, clamav_fbuf, fsize, 0) < 0) {
1188 (void)close(sockData);
1190 log_write(0, LOG_MAIN|LOG_PANIC,
1191 "malware acl condition: clamd: unable to send file body to socket (%s:%u)", hostname, port);
1195 (void)close(sockData);
1199 /* open the local socket */
1200 if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
1201 log_write(0, LOG_MAIN|LOG_PANIC,
1202 "malware acl condition: clamd: unable to acquire socket (%s)",
1207 server.sun_family = AF_UNIX;
1208 Ustrcpy(server.sun_path, clamd_options);
1210 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
1212 log_write(0, LOG_MAIN|LOG_PANIC,
1213 "malware acl condition: clamd: unable to connect to UNIX socket %s (%s)",
1214 clamd_options, strerror(errno) );
1219 /* Pass the string to ClamAV (7 = "SCAN \n" + \0) */
1221 (void)string_format(file_name,1024,"SCAN %s/scan/%s\n", spool_directory, message_id);
1223 if (send(sock, file_name, Ustrlen(file_name), 0) < 0) {
1225 log_write(0, LOG_MAIN|LOG_PANIC,"malware acl condition: clamd: unable to write to socket (%s)",
1231 We're done sending, close socket for writing.
1233 One user reported that clamd 0.70 does not like this any more ...
1237 /* shutdown(sock, SHUT_WR); */
1239 /* Read the result */
1240 memset(av_buffer, 0, sizeof(av_buffer));
1241 bread = read(sock, av_buffer, sizeof(av_buffer));
1245 log_write(0, LOG_MAIN|LOG_PANIC,
1246 "malware acl condition: clamd: unable to read from socket (%s)",
1251 if (bread == sizeof(av_buffer)) {
1252 log_write(0, LOG_MAIN|LOG_PANIC,
1253 "malware acl condition: clamd: buffer too small");
1257 /* Check the result. ClamAV Returns
1258 infected: -> "<filename>: <virusname> FOUND"
1259 not-infected: -> "<filename>: OK"
1260 error: -> "<filename>: <errcode> ERROR */
1262 if (!(*av_buffer)) {
1263 log_write(0, LOG_MAIN|LOG_PANIC,
1264 "malware acl condition: clamd: ClamAV returned null");
1268 /* strip newline at the end */
1269 p = av_buffer + Ustrlen(av_buffer) - 1;
1270 if( *p == '\n' ) *p = '\0';
1272 /* colon in returned output? */
1273 if((p = Ustrrchr(av_buffer,':')) == NULL) {
1274 log_write(0, LOG_MAIN|LOG_PANIC,
1275 "malware acl condition: clamd: ClamAV returned malformed result: %s",
1280 /* strip filename */
1282 while (*p == ' ') ++p;
1284 if ((p = Ustrstr(vname, "FOUND"))!=NULL) {
1286 for (--p;p>vname && *p<=32;p--) *p=0;
1287 for (;*vname==32;vname++);
1288 Ustrcpy(malware_name_buffer,vname);
1289 malware_name = malware_name_buffer;
1292 if (Ustrstr(vname, "ERROR")!=NULL) {
1293 /* ClamAV reports ERROR
1295 for (;*vname!='\n' && vname>av_buffer; vname--);
1296 if (*vname=='\n') vname++;
1298 log_write(0, LOG_MAIN|LOG_PANIC,
1299 "malware acl condition: clamd: ClamAV returned %s",vname);
1303 /* Everything should be OK */
1304 malware_name = NULL;
1308 /* ----------------------------------------------------------------------- */
1311 /* "mksd" scanner type --------------------------------------------------- */
1312 else if (strcmpic(scanner_name,US"mksd") == 0) {
1313 uschar *mksd_options;
1314 char *mksd_options_end;
1315 uschar mksd_options_buffer[32];
1316 int mksd_maxproc = 1; /* default, if no option supplied */
1317 struct sockaddr_un server;
1321 if ((mksd_options = string_nextinlist(&av_scanner_work, &sep,
1322 mksd_options_buffer,
1323 sizeof(mksd_options_buffer))) != NULL) {
1324 mksd_maxproc = (int) strtol(CS mksd_options, &mksd_options_end, 10);
1325 if ((*mksd_options == '\0') || (*mksd_options_end != '\0') ||
1326 (mksd_maxproc < 1) || (mksd_maxproc > 32)) {
1327 log_write(0, LOG_MAIN|LOG_PANIC,
1328 "malware acl condition: mksd: invalid option '%s'", mksd_options);
1333 /* open the mksd socket */
1334 sock = socket(AF_UNIX, SOCK_STREAM, 0);
1336 log_write(0, LOG_MAIN|LOG_PANIC,
1337 "malware acl condition: can't open UNIX socket.");
1340 server.sun_family = AF_UNIX;
1341 Ustrcpy(server.sun_path, "/var/run/mksd/socket");
1342 if (connect(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
1344 log_write(0, LOG_MAIN|LOG_PANIC,
1345 "malware acl condition: unable to connect to mksd UNIX socket (/var/run/mksd/socket). errno=%d", errno);
1349 malware_name = NULL;
1351 retval = mksd_scan_packed(sock);
1356 /* ----------------------------------------------------------------------- */
1358 /* "unknown" scanner type ------------------------------------------------- */
1360 log_write(0, LOG_MAIN|LOG_PANIC,
1361 "malware condition: unknown scanner type '%s'", scanner_name);
1364 /* ----------------------------------------------------------------------- */
1366 /* set "been here, done that" marker */
1370 /* match virus name against pattern (caseless ------->----------v) */
1371 if ( (malware_name != NULL) &&
1372 (regex_match_and_setup(re, malware_name, 0, -1)) ) {
1381 /* simple wrapper for reading lines from sockets */
1382 int recv_line(int sock, uschar *buffer, int size) {
1385 memset(buffer,0,size);
1387 while(recv(sock,p,1,0) > -1) {
1388 if ((p-buffer) > (size-2)) break;
1389 if (*p == '\n') break;
1390 if (*p != '\r') p++;
1398 /* ============= private routines for the "mksd" scanner type ============== */
1400 #include <sys/uio.h>
1402 int mksd_writev (int sock, struct iovec *iov, int iovcnt)
1408 i = writev (sock, iov, iovcnt);
1409 while ((i < 0) && (errno == EINTR));
1412 log_write(0, LOG_MAIN|LOG_PANIC,
1413 "malware acl condition: unable to write to mksd UNIX socket (/var/run/mksd/socket)");
1418 if (i >= iov->iov_len) {
1425 iov->iov_base = CS iov->iov_base + i;
1431 int mksd_read_lines (int sock, uschar *av_buffer, int av_buffer_size)
1437 if ((i = recv (sock, av_buffer+offset, av_buffer_size-offset, 0)) <= 0) {
1439 log_write(0, LOG_MAIN|LOG_PANIC,
1440 "malware acl condition: unable to read from mksd UNIX socket (/var/run/mksd/socket)");
1445 /* offset == av_buffer_size -> buffer full */
1446 if (offset == av_buffer_size) {
1448 log_write(0, LOG_MAIN|LOG_PANIC,
1449 "malware acl condition: malformed reply received from mksd");
1452 } while (av_buffer[offset-1] != '\n');
1454 av_buffer[offset] = '\0';
1458 int mksd_parse_line (char *line)
1469 if ((p = strchr (line, '\n')) != NULL)
1471 log_write(0, LOG_MAIN|LOG_PANIC,
1472 "malware acl condition: mksd scanner failed: %s", line);
1476 if ((p = strchr (line, '\n')) != NULL) {
1478 if (((p-line) > 5) && ((p-line) < sizeof (malware_name_buffer)) && (line[3] == ' '))
1479 if (((p = strchr (line+4, ' ')) != NULL) && ((p-line) > 4)) {
1481 Ustrcpy (malware_name_buffer, line+4);
1482 malware_name = malware_name_buffer;
1486 log_write(0, LOG_MAIN|LOG_PANIC,
1487 "malware acl condition: malformed reply received from mksd: %s", line);
1492 int mksd_scan_packed (int sock)
1494 struct iovec iov[7];
1495 char *cmd = "MSQ/scan/.eml\n";
1496 uschar av_buffer[1024];
1498 iov[0].iov_base = cmd;
1500 iov[1].iov_base = CS spool_directory;
1501 iov[1].iov_len = Ustrlen (spool_directory);
1502 iov[2].iov_base = cmd + 3;
1504 iov[3].iov_base = iov[5].iov_base = CS message_id;
1505 iov[3].iov_len = iov[5].iov_len = Ustrlen (message_id);
1506 iov[4].iov_base = cmd + 3;
1508 iov[6].iov_base = cmd + 9;
1511 if (mksd_writev (sock, iov, 7) < 0)
1514 if (mksd_read_lines (sock, av_buffer, sizeof (av_buffer)) < 0)
1519 return mksd_parse_line (CS av_buffer);