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

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Revision 1.64 - (hide annotations)
Tue Feb 10 22:21:09 2004 UTC (20 years, 1 month ago) by lefcha
Branch: MAIN
Changes since 1.63: +41 -37 lines
File MIME type: text/plain
Replaced integer options and bitwise OPTION_* with an options struct.

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 1.64 opts_t opts; /* Program opts. */
30 lefcha 1.29 unsigned int flags = 0; /* Program flags. */
31 lefcha 1.64
32 lefcha 1.51 conn_t connpri, connaux; /* Primary and auxiliary IMAP connection. */
33 lefcha 1.41
34 lefcha 1.25 char *home = NULL; /* User's home directory. */
35 lefcha 1.42
36 lefcha 1.46 jmp_buf acctloop; /* Non-local exit in case of network error. */
37 lefcha 1.1
38 lefcha 1.29
39 lefcha 1.52 void usage(void);
40     void version(void);
41    
42    
43 lefcha 1.2 /*
44 lefcha 1.46 * IMAPFilter: an IMAP mail filtering utility.
45 lefcha 1.2 */
46 lefcha 1.42 int
47     main(int argc, char *argv[])
48 lefcha 1.1 {
49 lefcha 1.58 int c, r;
50 lefcha 1.64 char *cf; /* Configuration file. */
51 lefcha 1.42 account_t *ca; /* Current account. */
52     mbox_t *cm; /* Current mailbox. */
53 lefcha 1.33
54 lefcha 1.45 setlocale(LC_ALL, "");
55 lefcha 1.40
56 lefcha 1.64 opts.debug = 0;
57     opts.verbosity = 0;
58     opts.timeout = -1;
59     opts.daemon = 0;
60     opts.headers = 0;
61     opts.errors = 0;
62     opts.namespace = 1;
63     opts.expunge = 0;
64     opts.subscribe = 0;
65     opts.peek = 1;
66     opts.passwd_editor = 0;
67     opts.charset[0] = '\0';
68     opts.logfile[0] = '\0';
69    
70 lefcha 1.42 home = getenv("HOME");
71 lefcha 1.64 cf = NULL;
72 lefcha 1.55 connpri.sock = connaux.sock = -1;
73 lefcha 1.33
74 lefcha 1.63 while ((c = getopt(argc, argv, "DVc:d:kl:"
75 lefcha 1.29 #ifdef ENCRYPTED_PASSWORDS
76 lefcha 1.42 "p"
77 lefcha 1.25 #endif
78 lefcha 1.63 "qv")) != -1) {
79 lefcha 1.42 switch (c) {
80 lefcha 1.63 case 'D':
81 lefcha 1.64 if (opts.debug < 2)
82     opts.debug++;
83 lefcha 1.63 break;
84     case 'V':
85     version();
86     /* NOTREACHED */
87 lefcha 1.42 case 'c':
88 lefcha 1.64 cf = optarg;
89 lefcha 1.42 break;
90     case 'd':
91     errno = 0;
92 lefcha 1.64 opts.daemon = strtoul(optarg, NULL, 10);
93 lefcha 1.42 if (errno)
94 lefcha 1.64 opts.daemon = 0;
95 lefcha 1.42 break;
96     case 'k':
97     kill_imapfilter();
98     break;
99     case 'l':
100 lefcha 1.64 strncat(opts.logfile, optarg, PATH_MAX - 1);
101 lefcha 1.42 break;
102 lefcha 1.25 #ifdef ENCRYPTED_PASSWORDS
103 lefcha 1.42 case 'p':
104 lefcha 1.64 opts.passwd_editor = 1;
105 lefcha 1.42 break;
106     #endif
107     case 'q':
108 lefcha 1.64 if (opts.verbosity > -2)
109     opts.verbosity--;
110 lefcha 1.42 break;
111     case 'v':
112 lefcha 1.64 if (opts.verbosity < 2)
113     opts.verbosity++;
114 lefcha 1.42 break;
115     default:
116 lefcha 1.63 case '?':
117 lefcha 1.42 usage();
118 lefcha 1.63 /* NOTREACHED */
119 lefcha 1.42 }
120 lefcha 1.1 }
121 lefcha 1.32
122 lefcha 1.60 debug_start();
123    
124 lefcha 1.42 create_homedir();
125 lefcha 1.33
126 lefcha 1.42 lockfile_check();
127     lockfile_create();
128 lefcha 1.28
129 lefcha 1.64 if (!opts.debug)
130 lefcha 1.60 corefile_disable();
131 lefcha 1.33
132 lefcha 1.42 tty_store();
133     catch_signals();
134 lefcha 1.24
135 lefcha 1.64 read_config(cf);
136 lefcha 1.33
137 lefcha 1.25 #ifdef ENCRYPTED_PASSWORDS
138 lefcha 1.42 read_passwords();
139 lefcha 1.33
140 lefcha 1.64 if (opts.passwd_editor) {
141 lefcha 1.42 password_editor();
142 lefcha 1.33
143 lefcha 1.42 secmem_clear();
144     lockfile_remove();
145 lefcha 1.33
146 lefcha 1.42 exit(0);
147     }
148 lefcha 1.25 #endif
149 lefcha 1.33
150 lefcha 1.60 log_start();
151 lefcha 1.32
152 lefcha 1.50 init_buffer(&ibuf);
153     init_buffer(&obuf);
154 lefcha 1.32
155 lefcha 1.64 if (opts.daemon)
156     opts.verbosity = -2;
157 lefcha 1.62
158 lefcha 1.42 do {
159     for (ca = accounts; ca != NULL; ca = ca->next) {
160 lefcha 1.7
161 lefcha 1.42 if (setjmp(acctloop))
162     continue;
163 lefcha 1.35
164 lefcha 1.51 if (init_connection(&connpri, ca->server, ca->port,
165 lefcha 1.42 ca->ssl))
166     continue;
167 lefcha 1.21
168 lefcha 1.51 r = greeting_response(&connpri);
169 lefcha 1.18
170 lefcha 1.64 if (opts.debug)
171 lefcha 1.60 test(&connpri);
172 lefcha 1.45
173 lefcha 1.51 if (check_capabilities(&connpri))
174 lefcha 1.42 continue;
175 lefcha 1.1
176 lefcha 1.49 #ifdef SSL_TLS
177     if (ca->ssl == SSL_DISABLED &&
178 lefcha 1.51 connpri.caps & CAPABILITY_STARTTLS)
179 lefcha 1.52 if (negotiate_tls(&connpri) == RESPONSE_OK)
180 lefcha 1.51 check_capabilities(&connpri);
181 lefcha 1.49 #endif
182    
183 lefcha 1.42 log_info(LOG_ACCOUNT, ca->key);
184 lefcha 1.1
185 lefcha 1.42 if (r != RESPONSE_PREAUTH) {
186     if (ca->passwdattr == PASSWORD_NONE) {
187     printf("Enter password for %s@%s: ",
188     ca->username, ca->server);
189     get_password(ca->password, PASSWORD_LEN);
190     ca->passwdattr = PASSWORD_PLAIN;
191     }
192 lefcha 1.48 #ifdef CRAM_MD5
193 lefcha 1.51 if (connpri.caps & CAPABILITY_AUTH_CRAM_MD5)
194 lefcha 1.52 r = auth_cram_md5(&connpri,
195 lefcha 1.48 ca->username, ca->password);
196     else
197     #endif
198 lefcha 1.51 r = login(&connpri, ca->username,
199 lefcha 1.48 ca->password);
200    
201     if (r == RESPONSE_NO) {
202 lefcha 1.42 error("username %s or password rejected "
203     "at %s\n", ca->username, ca->server);
204     continue;
205     }
206     }
207 lefcha 1.51 check_namespace(&connpri);
208 lefcha 1.42
209     for (cm = ca->mboxes; cm != NULL; cm = cm->next)
210     if (*cm->filters == NULL)
211 lefcha 1.51 mailbox_status(&connpri, cm->name);
212     else if (!select_mailbox(&connpri, cm->name)) {
213 lefcha 1.43 apply_filters(cm->name, cm->filters);
214 lefcha 1.51 close_mailbox(&connpri);
215 lefcha 1.42 }
216 lefcha 1.51 logout(&connpri);
217 lefcha 1.33
218 lefcha 1.51 close_connection(&connpri);
219 lefcha 1.33 }
220 lefcha 1.11
221 lefcha 1.42 /* Fork if in daemon mode. */
222 lefcha 1.64 if (opts.daemon && !(flags & FLAG_DAEMON_MODE)) {
223 lefcha 1.58 switch (fork()) {
224     case -1:
225     fatal(ERROR_FORK, "forking; %s\n",
226     strerror(errno));
227     break;
228     case 0:
229     break;
230     default:
231 lefcha 1.60 log_stop();
232 lefcha 1.58 secmem_clear();
233 lefcha 1.60 debug_stop();
234 lefcha 1.58 exit(0);
235     break;
236     }
237    
238     if (setsid() == -1)
239     fatal(ERROR_FORK, "creating session; %s\n",
240     strerror(errno));
241    
242     switch (fork()) {
243 lefcha 1.42 case -1:
244     fatal(ERROR_FORK, "forking; %s\n",
245     strerror(errno));
246     break;
247     case 0:
248     break;
249     default:
250 lefcha 1.60 log_stop();
251 lefcha 1.42 secmem_clear();
252 lefcha 1.60 debug_stop();
253 lefcha 1.42 exit(0);
254     break;
255     }
256 lefcha 1.58
257     close(STDIN_FILENO);
258     close(STDOUT_FILENO);
259     close(STDERR_FILENO);
260     if (open("/dev/null", O_RDWR) != -1) {
261     dup(STDIN_FILENO);
262     dup(STDIN_FILENO);
263     }
264     lockfile_create();
265     corefile_disable();
266    
267     flags |= FLAG_DAEMON_MODE;
268 lefcha 1.46 }
269 lefcha 1.64 if (opts.daemon && flags & FLAG_SIGUSR1_RECEIVED) {
270     reread_config(cf);
271 lefcha 1.46 continue;
272 lefcha 1.42 }
273 lefcha 1.64 if (opts.daemon)
274     sleep(opts.daemon);
275     } while (opts.daemon);
276 lefcha 1.17
277 lefcha 1.60 log_stop();
278 lefcha 1.42 secmem_clear();
279 lefcha 1.33
280 lefcha 1.42 lockfile_remove();
281 lefcha 1.33
282 lefcha 1.60 debug_stop();
283    
284 lefcha 1.55 exit(0);
285 lefcha 1.1 }
286    
287    
288     /*
289 lefcha 1.11 * Print a very brief usage message.
290 lefcha 1.2 */
291 lefcha 1.42 void
292     usage(void)
293 lefcha 1.2 {
294 lefcha 1.42 fprintf(stderr,
295 lefcha 1.63 "usage: imapfilter [-DVbk"
296 lefcha 1.26 #ifdef ENCRYPTED_PASSWORDS
297     "p"
298 lefcha 1.33 #endif
299 lefcha 1.63 "qv] [-c configfile] [-d interval] [-l logfile]\n");
300    
301     exit(ERROR_UNDEFINED);
302 lefcha 1.38 }
303    
304    
305     /*
306     * Print program's version, and if it is built in, OpenSSL's version number.
307     */
308 lefcha 1.42 void
309     version(void)
310 lefcha 1.38 {
311 lefcha 1.42 fprintf(stderr, "IMAPFilter %s"
312 lefcha 1.53 #if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5
313 lefcha 1.38 ", OpenSSL 0x%8.8lx"
314     #endif
315     "\n", IMAPFILTER_VERSION
316 lefcha 1.53 #if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5
317 lefcha 1.38 ,SSLeay()
318     #endif
319 lefcha 1.42 );
320 lefcha 1.63
321     exit(ERROR_UNDEFINED);
322 lefcha 1.1 }

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