/[imapfilter]/imapfilter/imapfilter.c
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Annotation of /imapfilter/imapfilter.c

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Revision 1.63 - (hide annotations)
Mon Feb 9 20:39:23 2004 UTC (20 years, 1 month ago) by lefcha
Branch: MAIN
Changes since 1.62: +16 -17 lines
File MIME type: text/plain
Removed -h option and changed ERROR_ values.

1 lefcha 1.1 #include <stdio.h>
2 lefcha 1.53 #include <stdlib.h>
3 lefcha 1.55 #include <sys/types.h>
4     #include <unistd.h>
5 lefcha 1.52 #include <string.h>
6     #include <errno.h>
7 lefcha 1.7 #include <limits.h>
8 lefcha 1.58 #include <fcntl.h>
9 lefcha 1.35 #include <setjmp.h>
10 lefcha 1.40 #include <locale.h>
11 lefcha 1.1
12 lefcha 1.39 #include "config.h"
13     #include "imapfilter.h"
14 lefcha 1.52 #include "version.h"
15     #include "account.h"
16     #include "filter.h"
17     #include "buffer.h"
18 lefcha 1.39
19 lefcha 1.53 #if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5
20 lefcha 1.55 #include <openssl/opensslv.h>
21 lefcha 1.38 #include <openssl/crypto.h>
22     #endif
23 lefcha 1.1
24    
25 lefcha 1.7 extern account_t *accounts;
26 lefcha 1.11 extern filter_t *filters;
27 lefcha 1.50 extern buffer_t ibuf, obuf;
28 lefcha 1.7
29 lefcha 1.10 unsigned int options; /* Program options. */
30 lefcha 1.62 int verbosity; /* Program verbosity level (-2..2). */
31 lefcha 1.29 unsigned int flags = 0; /* Program flags. */
32     unsigned int interval = 0; /* Poll at the specified interval. */
33 lefcha 1.51 conn_t connpri, connaux; /* Primary and auxiliary IMAP connection. */
34 lefcha 1.41
35 lefcha 1.5 char logfile[PATH_MAX]; /* Log file. */
36 lefcha 1.25 char *home = NULL; /* User's home directory. */
37 lefcha 1.40 char charset[CHARSET_LEN]; /* Charset for IMAP SEARCH requests. */
38 lefcha 1.42
39 lefcha 1.46 jmp_buf acctloop; /* Non-local exit in case of network error. */
40 lefcha 1.1
41 lefcha 1.29
42 lefcha 1.52 void usage(void);
43     void version(void);
44    
45    
46 lefcha 1.2 /*
47 lefcha 1.46 * IMAPFilter: an IMAP mail filtering utility.
48 lefcha 1.2 */
49 lefcha 1.42 int
50     main(int argc, char *argv[])
51 lefcha 1.1 {
52 lefcha 1.58 int c, r;
53 lefcha 1.55 char *conffile; /* Configuration file. */
54 lefcha 1.42 account_t *ca; /* Current account. */
55     mbox_t *cm; /* Current mailbox. */
56 lefcha 1.33
57 lefcha 1.45 setlocale(LC_ALL, "");
58 lefcha 1.40
59 lefcha 1.42 home = getenv("HOME");
60 lefcha 1.62 options = (OPTION_NAMESPACE | OPTION_PEEK);
61     verbosity = 0;
62 lefcha 1.42 *charset = 0;
63     *logfile = 0;
64 lefcha 1.55 conffile = NULL;
65     connpri.sock = connaux.sock = -1;
66 lefcha 1.33
67 lefcha 1.63 while ((c = getopt(argc, argv, "DVc:d:kl:"
68 lefcha 1.29 #ifdef ENCRYPTED_PASSWORDS
69 lefcha 1.42 "p"
70 lefcha 1.25 #endif
71 lefcha 1.63 "qv")) != -1) {
72 lefcha 1.42 switch (c) {
73 lefcha 1.63 case 'D':
74     options |= OPTION_DEBUG;
75     break;
76     case 'V':
77     version();
78     /* NOTREACHED */
79 lefcha 1.42 case 'c':
80 lefcha 1.55 conffile = optarg;
81 lefcha 1.42 break;
82     case 'd':
83     options |= OPTION_DAEMON_MODE;
84     errno = 0;
85     interval = strtoul(optarg, NULL, 10);
86     if (errno)
87     interval = 0;
88     break;
89     case 'k':
90     kill_imapfilter();
91     break;
92     case 'l':
93     strncat(logfile, optarg, PATH_MAX - 1);
94     break;
95 lefcha 1.25 #ifdef ENCRYPTED_PASSWORDS
96 lefcha 1.42 case 'p':
97     options |= OPTION_PASSWORD_EDITOR;
98     break;
99     #endif
100     case 'q':
101 lefcha 1.62 if (verbosity > -2)
102     verbosity--;
103 lefcha 1.42 break;
104     case 'v':
105 lefcha 1.62 if (verbosity < 2)
106     verbosity++;
107 lefcha 1.42 break;
108     default:
109 lefcha 1.63 case '?':
110 lefcha 1.42 usage();
111 lefcha 1.63 /* NOTREACHED */
112 lefcha 1.42 }
113 lefcha 1.1 }
114 lefcha 1.32
115 lefcha 1.60 debug_start();
116    
117 lefcha 1.42 create_homedir();
118 lefcha 1.33
119 lefcha 1.42 lockfile_check();
120     lockfile_create();
121 lefcha 1.28
122 lefcha 1.60 if (!(options & OPTION_DEBUG))
123     corefile_disable();
124 lefcha 1.33
125 lefcha 1.42 tty_store();
126     catch_signals();
127 lefcha 1.24
128 lefcha 1.55 read_config(conffile);
129 lefcha 1.33
130 lefcha 1.25 #ifdef ENCRYPTED_PASSWORDS
131 lefcha 1.42 read_passwords();
132 lefcha 1.33
133 lefcha 1.42 if ((options & OPTION_PASSWORD_EDITOR)) {
134     password_editor();
135 lefcha 1.33
136 lefcha 1.42 secmem_clear();
137     lockfile_remove();
138 lefcha 1.33
139 lefcha 1.42 exit(0);
140     }
141 lefcha 1.25 #endif
142 lefcha 1.33
143 lefcha 1.60 log_start();
144 lefcha 1.32
145 lefcha 1.50 init_buffer(&ibuf);
146     init_buffer(&obuf);
147 lefcha 1.32
148 lefcha 1.62 if (options & OPTION_DAEMON_MODE)
149     verbosity = -2;
150    
151 lefcha 1.42 do {
152     for (ca = accounts; ca != NULL; ca = ca->next) {
153 lefcha 1.7
154 lefcha 1.42 if (setjmp(acctloop))
155     continue;
156 lefcha 1.35
157 lefcha 1.51 if (init_connection(&connpri, ca->server, ca->port,
158 lefcha 1.42 ca->ssl))
159     continue;
160 lefcha 1.21
161 lefcha 1.51 r = greeting_response(&connpri);
162 lefcha 1.18
163 lefcha 1.60 if (options & OPTION_DEBUG)
164     test(&connpri);
165 lefcha 1.45
166 lefcha 1.51 if (check_capabilities(&connpri))
167 lefcha 1.42 continue;
168 lefcha 1.1
169 lefcha 1.49 #ifdef SSL_TLS
170     if (ca->ssl == SSL_DISABLED &&
171 lefcha 1.51 connpri.caps & CAPABILITY_STARTTLS)
172 lefcha 1.52 if (negotiate_tls(&connpri) == RESPONSE_OK)
173 lefcha 1.51 check_capabilities(&connpri);
174 lefcha 1.49 #endif
175    
176 lefcha 1.42 log_info(LOG_ACCOUNT, ca->key);
177 lefcha 1.1
178 lefcha 1.42 if (r != RESPONSE_PREAUTH) {
179     if (ca->passwdattr == PASSWORD_NONE) {
180     printf("Enter password for %s@%s: ",
181     ca->username, ca->server);
182     get_password(ca->password, PASSWORD_LEN);
183     ca->passwdattr = PASSWORD_PLAIN;
184     }
185 lefcha 1.48 #ifdef CRAM_MD5
186 lefcha 1.51 if (connpri.caps & CAPABILITY_AUTH_CRAM_MD5)
187 lefcha 1.52 r = auth_cram_md5(&connpri,
188 lefcha 1.48 ca->username, ca->password);
189     else
190     #endif
191 lefcha 1.51 r = login(&connpri, ca->username,
192 lefcha 1.48 ca->password);
193    
194     if (r == RESPONSE_NO) {
195 lefcha 1.42 error("username %s or password rejected "
196     "at %s\n", ca->username, ca->server);
197     continue;
198     }
199     }
200 lefcha 1.51 check_namespace(&connpri);
201 lefcha 1.42
202     for (cm = ca->mboxes; cm != NULL; cm = cm->next)
203     if (*cm->filters == NULL)
204 lefcha 1.51 mailbox_status(&connpri, cm->name);
205     else if (!select_mailbox(&connpri, cm->name)) {
206 lefcha 1.43 apply_filters(cm->name, cm->filters);
207 lefcha 1.51 close_mailbox(&connpri);
208 lefcha 1.42 }
209 lefcha 1.51 logout(&connpri);
210 lefcha 1.33
211 lefcha 1.51 close_connection(&connpri);
212 lefcha 1.33 }
213 lefcha 1.11
214 lefcha 1.42 /* Fork if in daemon mode. */
215 lefcha 1.58 if (options & OPTION_DAEMON_MODE &&
216     !(flags & FLAG_DAEMON_MODE)) {
217    
218     switch (fork()) {
219     case -1:
220     fatal(ERROR_FORK, "forking; %s\n",
221     strerror(errno));
222     break;
223     case 0:
224     break;
225     default:
226 lefcha 1.60 log_stop();
227 lefcha 1.58 secmem_clear();
228 lefcha 1.60 debug_stop();
229 lefcha 1.58 exit(0);
230     break;
231     }
232    
233     if (setsid() == -1)
234     fatal(ERROR_FORK, "creating session; %s\n",
235     strerror(errno));
236    
237     switch (fork()) {
238 lefcha 1.42 case -1:
239     fatal(ERROR_FORK, "forking; %s\n",
240     strerror(errno));
241     break;
242     case 0:
243     break;
244     default:
245 lefcha 1.60 log_stop();
246 lefcha 1.42 secmem_clear();
247 lefcha 1.60 debug_stop();
248 lefcha 1.42 exit(0);
249     break;
250     }
251 lefcha 1.58
252     close(STDIN_FILENO);
253     close(STDOUT_FILENO);
254     close(STDERR_FILENO);
255     if (open("/dev/null", O_RDWR) != -1) {
256     dup(STDIN_FILENO);
257     dup(STDIN_FILENO);
258     }
259     lockfile_create();
260     corefile_disable();
261    
262     flags |= FLAG_DAEMON_MODE;
263 lefcha 1.46 }
264     if (options & OPTION_DAEMON_MODE &&
265 lefcha 1.54 flags & FLAG_SIGUSR1_RECEIVED) {
266 lefcha 1.55 reread_config(conffile);
267 lefcha 1.46 continue;
268 lefcha 1.42 }
269     if (interval)
270     sleep(interval);
271     } while (options & OPTION_DAEMON_MODE && interval);
272 lefcha 1.17
273 lefcha 1.60 log_stop();
274 lefcha 1.42 secmem_clear();
275 lefcha 1.33
276 lefcha 1.42 lockfile_remove();
277 lefcha 1.33
278 lefcha 1.60 debug_stop();
279    
280 lefcha 1.55 exit(0);
281 lefcha 1.1 }
282    
283    
284     /*
285 lefcha 1.11 * Print a very brief usage message.
286 lefcha 1.2 */
287 lefcha 1.42 void
288     usage(void)
289 lefcha 1.2 {
290 lefcha 1.42 fprintf(stderr,
291 lefcha 1.63 "usage: imapfilter [-DVbk"
292 lefcha 1.26 #ifdef ENCRYPTED_PASSWORDS
293     "p"
294 lefcha 1.33 #endif
295 lefcha 1.63 "qv] [-c configfile] [-d interval] [-l logfile]\n");
296    
297     exit(ERROR_UNDEFINED);
298 lefcha 1.38 }
299    
300    
301     /*
302     * Print program's version, and if it is built in, OpenSSL's version number.
303     */
304 lefcha 1.42 void
305     version(void)
306 lefcha 1.38 {
307 lefcha 1.42 fprintf(stderr, "IMAPFilter %s"
308 lefcha 1.53 #if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5
309 lefcha 1.38 ", OpenSSL 0x%8.8lx"
310     #endif
311     "\n", IMAPFILTER_VERSION
312 lefcha 1.53 #if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5
313 lefcha 1.38 ,SSLeay()
314     #endif
315 lefcha 1.42 );
316 lefcha 1.63
317     exit(ERROR_UNDEFINED);
318 lefcha 1.1 }

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