2 Copyright (C) 2000-2003 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
46 static char *from_addr = NULL;
47 static char *cc_addr = NULL;
48 static char *subject = NULL;
49 static char *err_addr = NULL;
50 static char *mailhost = NULL;
51 static char *reply_addr = NULL;
52 static int mailport = 25;
53 static char my_hostname[MAXSTRING];
57 * examine message from server
59 static void get_response(void)
63 Dmsg0(50, "Calling fgets on read socket rfp.\n");
64 while (fgets(buf, sizeof(buf), rfp)) {
65 buf[strlen(buf)-1] = 0;
66 Dmsg2(10, "%s --> %s\n", mailhost, buf);
67 if (!isdigit((int)buf[0]) || buf[0] > '3') {
68 Pmsg2(0, "Fatal malformed reply from %s: %s\n", mailhost, buf);
79 * say something to server and check the response
81 static void chat(char *fmt, ...)
86 vfprintf(sfp, fmt, ap);
87 if (debug_level >= 10) {
88 fprintf(stdout, "%s --> ", my_hostname);
89 vfprintf(stdout, fmt, ap);
94 if (debug_level >= 10) {
105 "Usage: bsmtp [-f from] [-h mailhost] [-s subject] [-c copy] [recepient ...]\n"
106 " -c set the Cc: field\n"
107 " -dnn set debug level to nn\n"
108 " -f set the From: field\n"
109 " -h use mailhost:port as the SMTP server\n"
110 " -s set the Subject: field\n"
111 " -? print this message.\n"
118 /*********************************************************************
120 * Program to send email
122 int main (int argc, char *argv[])
125 struct sockaddr_in sin;
130 time_t now = time(NULL);
133 my_name_is(argc, argv, "bsmtp");
135 while ((ch = getopt(argc, argv, "c:d:f:h:r:s:?")) != -1) {
138 Dmsg1(20, "cc=%s\n", optarg);
142 case 'd': /* set debug level */
143 debug_level = atoi(optarg);
144 if (debug_level <= 0) {
147 Dmsg1(20, "Debug level = %d\n", debug_level);
154 case 'h': /* smtp host */
155 Dmsg1(20, "host=%s\n", optarg);
156 p = strchr(optarg, ':');
164 case 's': /* subject */
165 Dmsg1(20, "subject=%s\n", optarg);
169 case 'r': /* reply address */
183 Pmsg0(0, "Fatal error: no recipient given.\n");
189 * Determine SMTP server
191 if (mailhost == NULL) {
192 if ((cp = getenv("SMTPSERVER")) != NULL) {
195 mailhost = "localhost";
200 * Find out my own host name for HELO;
201 * if possible, get the fully qualified domain name
203 if (gethostname(my_hostname, sizeof(my_hostname) - 1) < 0) {
204 Pmsg1(0, "Fatal gethostname error: ERR=%s\n", strerror(errno));
207 if ((hp = gethostbyname(my_hostname)) == NULL) {
208 Pmsg2(0, "Fatal gethostbyname for myself failed \"%s\": ERR=%s\n", my_hostname,
212 strcpy(my_hostname, hp->h_name);
213 Dmsg1(20, "My hostname is: %s\n", my_hostname);
216 * Determine from address.
218 if (from_addr == NULL) {
219 if ((pwd = getpwuid(getuid())) == 0) {
220 sprintf(buf, "userid-%d@%s", (int)getuid(), my_hostname);
222 sprintf(buf, "%s@%s", pwd->pw_name, my_hostname);
224 from_addr = bstrdup(buf);
226 Dmsg1(20, "From addr=%s\n", from_addr);
229 * Connect to smtp daemon on mailhost.
232 if ((hp = gethostbyname(mailhost)) == NULL) {
233 Pmsg2(0, "Error unknown mail host \"%s\": ERR=%s\n", mailhost,
235 if (strcasecmp(mailhost, "localhost") != 0) {
236 Pmsg0(0, "Retrying connection using \"localhost\".\n");
237 mailhost = "localhost";
243 if (hp->h_addrtype != AF_INET) {
244 Pmsg1(0, "Fatal error: Unknown address family for smtp host: %d\n", hp->h_addrtype);
247 memset((char *)&sin, 0, sizeof(sin));
248 memcpy((char *)&sin.sin_addr, hp->h_addr, hp->h_length);
249 sin.sin_family = hp->h_addrtype;
250 sin.sin_port = htons(mailport);
251 if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
252 Pmsg1(0, "Fatal socket error: ERR=%s\n", strerror(errno));
255 if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
256 Pmsg2(0, "Fatal connect error to %s: ERR=%s\n", mailhost, strerror(errno));
259 Dmsg0(20, "Connected\n");
260 if ((r = dup(s)) < 0) {
261 Pmsg1(0, "Fatal dup error: ERR=%s\n", strerror(errno));
264 if ((sfp = fdopen(s, "w")) == 0) {
265 Pmsg1(0, "Fatal fdopen error: ERR=%s\n", strerror(errno));
268 if ((rfp = fdopen(r, "r")) == 0) {
269 Pmsg1(0, "Fatal fdopen error: ERR=%s\n", strerror(errno));
276 get_response(); /* banner */
277 chat("helo %s\r\n", my_hostname);
278 chat("mail from: <%s>\r\n", from_addr);
280 for (i = 0; i < argc; i++) {
281 Dmsg1(20, "rcpt to: %s\n", argv[i]);
282 chat("rcpt to: <%s>\r\n", argv[i]);
286 chat("rcpt to: <%s>\r\n", cc_addr);
292 * Send message header
294 fprintf(sfp, "From: %s\r\n", from_addr);
296 fprintf(sfp, "Subject: %s\r\n", subject);
299 fprintf(sfp, "Reply-To: %s\r\n", reply_addr);
302 fprintf(sfp, "Errors-To: %s\r\n", err_addr);
304 if ((pwd = getpwuid(getuid())) == 0) {
305 fprintf(sfp, "Sender: userid-%d@%s\r\n", (int)getuid(), my_hostname);
307 fprintf(sfp, "Sender: %s@%s\r\n", pwd->pw_name, my_hostname);
310 fprintf(sfp, "To: %s", argv[0]);
311 for (i = 1; i < argc; i++) {
312 fprintf(sfp, ",%s", argv[i]);
315 fprintf(sfp, "\r\n");
317 fprintf(sfp, "Cc: %s\r\n", cc_addr);
320 /* Add RFC822 date */
321 localtime_r(&now, &tm);
322 strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %z", &tm);
323 fprintf(sfp, "Date: %s\r\n", buf);
325 fprintf(sfp, "\r\n");
330 while (fgets(buf, sizeof(buf), stdin)) {
331 buf[strlen(buf)-1] = 0;
332 if (strcmp(buf, ".") == 0) { /* quote lone dots */
333 fprintf(sfp, "..\r\n");
334 } else { /* pass body through unchanged */
335 fprintf(sfp, "%s\r\n", buf);
340 * Send SMTP quit command
346 * Go away gracefully ...