2 Copyright (C) 2000-2004 Kern Sibbald and John Walker
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of
7 the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU General Public
15 License along with this program; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 Derived from a SMTPclient:
24 SMTPclient -- simple SMTP client
26 Copyright (C) 1997 Ralf S. Engelschall, All Rights Reserved.
30 Kern Sibbald, July 2001
41 #define bstrdup(x) strdup(x)
43 UPSINFO *core_ups = &myUPS;
44 #define MY_NAME "smtp"
50 #define MY_NAME "bsmtp"
62 static char *from_addr = NULL;
63 static char *cc_addr = NULL;
64 static char *subject = NULL;
65 static char *err_addr = NULL;
66 static const char *mailhost = NULL;
67 static char *reply_addr = NULL;
68 static int mailport = 25;
69 static char my_hostname[MAXSTRING];
73 * examine message from server
75 static void get_response(void)
79 Dmsg0(50, "Calling fgets on read socket rfp.\n");
81 while (fgets(buf, sizeof(buf), rfp)) {
82 int len = strlen(buf);
86 Dmsg2(10, "%s --> %s\n", mailhost, buf);
87 if (!isdigit((int)buf[0]) || buf[0] > '3') {
88 Pmsg2(0, "Fatal malformed reply from %s: %s\n", mailhost, buf);
99 * say something to server and check the response
101 static void chat(const char *fmt, ...)
106 vfprintf(sfp, fmt, ap);
107 if (debug_level >= 10) {
108 fprintf(stdout, "%s --> ", my_hostname);
109 vfprintf(stdout, fmt, ap);
114 if (debug_level >= 10) {
125 "Usage: %s [-f from] [-h mailhost] [-s subject] [-c copy] [recepient ...]\n"
126 " -c set the Cc: field\n"
127 " -dnn set debug level to nn\n"
128 " -f set the From: field\n"
129 " -h use mailhost:port as the SMTP server\n"
130 " -s set the Subject: field\n"
131 " -? print this message.\n"
138 /*********************************************************************
140 * Program to send email
142 int main (int argc, char *argv[])
145 struct sockaddr_in sin;
150 time_t now = time(NULL);
153 my_name_is(argc, argv, "bsmtp");
155 while ((ch = getopt(argc, argv, "c:d:f:h:r:s:?")) != -1) {
158 Dmsg1(20, "cc=%s\n", optarg);
162 case 'd': /* set debug level */
163 debug_level = atoi(optarg);
164 if (debug_level <= 0) {
167 Dmsg1(20, "Debug level = %d\n", debug_level);
174 case 'h': /* smtp host */
175 Dmsg1(20, "host=%s\n", optarg);
176 p = strchr(optarg, ':');
184 case 's': /* subject */
185 Dmsg1(20, "subject=%s\n", optarg);
189 case 'r': /* reply address */
203 Pmsg0(0, "Fatal error: no recipient given.\n");
209 * Determine SMTP server
211 if (mailhost == NULL) {
212 if ((cp = getenv("SMTPSERVER")) != NULL) {
215 mailhost = "localhost";
220 * Find out my own host name for HELO;
221 * if possible, get the fully qualified domain name
223 if (gethostname(my_hostname, sizeof(my_hostname) - 1) < 0) {
224 Pmsg1(0, "Fatal gethostname error: ERR=%s\n", strerror(errno));
227 if ((hp = gethostbyname(my_hostname)) == NULL) {
228 Pmsg2(0, "Fatal gethostbyname for myself failed \"%s\": ERR=%s\n", my_hostname,
232 strcpy(my_hostname, hp->h_name);
233 Dmsg1(20, "My hostname is: %s\n", my_hostname);
236 * Determine from address.
238 if (from_addr == NULL) {
239 if ((pwd = getpwuid(getuid())) == 0) {
240 sprintf(buf, "userid-%d@%s", (int)getuid(), my_hostname);
242 sprintf(buf, "%s@%s", pwd->pw_name, my_hostname);
244 from_addr = bstrdup(buf);
246 Dmsg1(20, "From addr=%s\n", from_addr);
249 * Connect to smtp daemon on mailhost.
252 if ((hp = gethostbyname(mailhost)) == NULL) {
253 Pmsg2(0, "Error unknown mail host \"%s\": ERR=%s\n", mailhost,
255 if (strcasecmp(mailhost, "localhost") != 0) {
256 Pmsg0(0, "Retrying connection using \"localhost\".\n");
257 mailhost = "localhost";
263 if (hp->h_addrtype != AF_INET) {
264 Pmsg1(0, "Fatal error: Unknown address family for smtp host: %d\n", hp->h_addrtype);
267 memset((char *)&sin, 0, sizeof(sin));
268 memcpy((char *)&sin.sin_addr, hp->h_addr, hp->h_length);
269 sin.sin_family = hp->h_addrtype;
270 sin.sin_port = htons(mailport);
271 if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
272 Pmsg1(0, "Fatal socket error: ERR=%s\n", strerror(errno));
275 if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
276 Pmsg2(0, "Fatal connect error to %s: ERR=%s\n", mailhost, strerror(errno));
279 Dmsg0(20, "Connected\n");
280 if ((r = dup(s)) < 0) {
281 Pmsg1(0, "Fatal dup error: ERR=%s\n", strerror(errno));
284 if ((sfp = fdopen(s, "w")) == 0) {
285 Pmsg1(0, "Fatal fdopen error: ERR=%s\n", strerror(errno));
288 if ((rfp = fdopen(r, "r")) == 0) {
289 Pmsg1(0, "Fatal fdopen error: ERR=%s\n", strerror(errno));
296 get_response(); /* banner */
297 chat("helo %s\r\n", my_hostname);
298 chat("mail from:<%s>\r\n", from_addr);
300 for (i = 0; i < argc; i++) {
301 Dmsg1(20, "rcpt to: %s\n", argv[i]);
302 chat("rcpt to:<%s>\r\n", argv[i]);
306 chat("rcpt to:<%s>\r\n", cc_addr);
312 * Send message header
314 fprintf(sfp, "From: %s\r\n", from_addr);
316 fprintf(sfp, "Subject: %s\r\n", subject);
319 fprintf(sfp, "Reply-To: %s\r\n", reply_addr);
322 fprintf(sfp, "Errors-To: %s\r\n", err_addr);
324 if ((pwd = getpwuid(getuid())) == 0) {
325 fprintf(sfp, "Sender: userid-%d@%s\r\n", (int)getuid(), my_hostname);
327 fprintf(sfp, "Sender: %s@%s\r\n", pwd->pw_name, my_hostname);
330 fprintf(sfp, "To: %s", argv[0]);
331 for (i = 1; i < argc; i++) {
332 fprintf(sfp, ",%s", argv[i]);
335 fprintf(sfp, "\r\n");
337 fprintf(sfp, "Cc: %s\r\n", cc_addr);
340 /* Add RFC822 date */
341 localtime_r(&now, &tm);
342 strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %z", &tm);
343 fprintf(sfp, "Date: %s\r\n", buf);
345 fprintf(sfp, "\r\n");
350 while (fgets(buf, sizeof(buf), stdin)) {
351 buf[strlen(buf)-1] = 0;
352 if (strcmp(buf, ".") == 0) { /* quote lone dots */
353 fprintf(sfp, "..\r\n");
354 } else { /* pass body through unchanged */
355 fprintf(sfp, "%s\r\n", buf);
360 * Send SMTP quit command
366 * Go away gracefully ...