1 |
lefcha |
1.1 |
#include <stdio.h> |
2 |
lefcha |
1.53 |
#include <stdlib.h> |
3 |
lefcha |
1.55 |
#include <sys/types.h> |
4 |
|
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#include <unistd.h> |
5 |
lefcha |
1.52 |
#include <string.h> |
6 |
|
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#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 |
|
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#include "imapfilter.h" |
14 |
lefcha |
1.52 |
#include "version.h" |
15 |
|
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#include "account.h" |
16 |
|
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#include "filter.h" |
17 |
|
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#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 |
1.67 |
options_t opts; /* Program options. */ |
30 |
lefcha |
1.29 |
unsigned int flags = 0; /* Program flags. */ |
31 |
lefcha |
1.64 |
|
32 |
lefcha |
1.65 |
connection_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 |
1.66 |
void imapfilter(void); |
40 |
|
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void daemonize(void); |
41 |
lefcha |
1.52 |
void usage(void); |
42 |
|
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void version(void); |
43 |
|
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|
44 |
|
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|
45 |
lefcha |
1.2 |
/* |
46 |
lefcha |
1.46 |
* IMAPFilter: an IMAP mail filtering utility. |
47 |
lefcha |
1.2 |
*/ |
48 |
lefcha |
1.42 |
int |
49 |
|
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main(int argc, char *argv[]) |
50 |
lefcha |
1.1 |
{ |
51 |
lefcha |
1.66 |
int c; |
52 |
|
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char *cf; |
53 |
lefcha |
1.33 |
|
54 |
lefcha |
1.45 |
setlocale(LC_ALL, ""); |
55 |
lefcha |
1.40 |
|
56 |
lefcha |
1.64 |
opts.debug = 0; |
57 |
|
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opts.verbosity = 0; |
58 |
|
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opts.timeout = -1; |
59 |
|
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opts.daemon = 0; |
60 |
|
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opts.headers = 0; |
61 |
|
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opts.errors = 0; |
62 |
|
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opts.namespace = 1; |
63 |
|
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opts.expunge = 0; |
64 |
|
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opts.subscribe = 0; |
65 |
|
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opts.peek = 1; |
66 |
|
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opts.passwd_editor = 0; |
67 |
|
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opts.charset[0] = '\0'; |
68 |
|
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opts.logfile[0] = '\0'; |
69 |
lefcha |
1.70 |
opts.force_protocol = PROTOCOL_NONE; |
70 |
lefcha |
1.64 |
|
71 |
lefcha |
1.42 |
home = getenv("HOME"); |
72 |
lefcha |
1.64 |
cf = NULL; |
73 |
lefcha |
1.55 |
connpri.sock = connaux.sock = -1; |
74 |
lefcha |
1.33 |
|
75 |
lefcha |
1.63 |
while ((c = getopt(argc, argv, "DVc:d:kl:" |
76 |
lefcha |
1.29 |
#ifdef ENCRYPTED_PASSWORDS |
77 |
lefcha |
1.68 |
"p" |
78 |
lefcha |
1.25 |
#endif |
79 |
lefcha |
1.68 |
"qv")) != -1) { |
80 |
lefcha |
1.42 |
switch (c) { |
81 |
lefcha |
1.63 |
case 'D': |
82 |
lefcha |
1.64 |
if (opts.debug < 2) |
83 |
|
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opts.debug++; |
84 |
lefcha |
1.63 |
break; |
85 |
|
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case 'V': |
86 |
|
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version(); |
87 |
|
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/* NOTREACHED */ |
88 |
lefcha |
1.42 |
case 'c': |
89 |
lefcha |
1.64 |
cf = optarg; |
90 |
lefcha |
1.42 |
break; |
91 |
|
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case 'd': |
92 |
|
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errno = 0; |
93 |
lefcha |
1.64 |
opts.daemon = strtoul(optarg, NULL, 10); |
94 |
lefcha |
1.42 |
if (errno) |
95 |
lefcha |
1.64 |
opts.daemon = 0; |
96 |
lefcha |
1.42 |
break; |
97 |
|
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case 'k': |
98 |
|
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kill_imapfilter(); |
99 |
|
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break; |
100 |
|
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case 'l': |
101 |
lefcha |
1.64 |
strncat(opts.logfile, optarg, PATH_MAX - 1); |
102 |
lefcha |
1.42 |
break; |
103 |
lefcha |
1.25 |
#ifdef ENCRYPTED_PASSWORDS |
104 |
lefcha |
1.42 |
case 'p': |
105 |
lefcha |
1.64 |
opts.passwd_editor = 1; |
106 |
lefcha |
1.42 |
break; |
107 |
|
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#endif |
108 |
|
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case 'q': |
109 |
lefcha |
1.64 |
if (opts.verbosity > -2) |
110 |
|
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opts.verbosity--; |
111 |
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1.42 |
break; |
112 |
|
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case 'v': |
113 |
lefcha |
1.64 |
if (opts.verbosity < 2) |
114 |
|
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opts.verbosity++; |
115 |
lefcha |
1.42 |
break; |
116 |
lefcha |
1.67 |
case '?': |
117 |
lefcha |
1.42 |
default: |
118 |
|
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usage(); |
119 |
lefcha |
1.63 |
/* NOTREACHED */ |
120 |
lefcha |
1.42 |
} |
121 |
lefcha |
1.1 |
} |
122 |
lefcha |
1.32 |
|
123 |
lefcha |
1.60 |
debug_start(); |
124 |
|
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|
125 |
lefcha |
1.42 |
create_homedir(); |
126 |
lefcha |
1.33 |
|
127 |
lefcha |
1.42 |
lockfile_check(); |
128 |
|
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lockfile_create(); |
129 |
lefcha |
1.28 |
|
130 |
lefcha |
1.64 |
if (!opts.debug) |
131 |
lefcha |
1.60 |
corefile_disable(); |
132 |
lefcha |
1.33 |
|
133 |
lefcha |
1.42 |
tty_store(); |
134 |
lefcha |
1.67 |
|
135 |
lefcha |
1.42 |
catch_signals(); |
136 |
lefcha |
1.24 |
|
137 |
lefcha |
1.64 |
read_config(cf); |
138 |
lefcha |
1.33 |
|
139 |
lefcha |
1.25 |
#ifdef ENCRYPTED_PASSWORDS |
140 |
lefcha |
1.42 |
read_passwords(); |
141 |
lefcha |
1.33 |
|
142 |
lefcha |
1.64 |
if (opts.passwd_editor) { |
143 |
lefcha |
1.42 |
password_editor(); |
144 |
lefcha |
1.33 |
|
145 |
lefcha |
1.42 |
secmem_clear(); |
146 |
|
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lockfile_remove(); |
147 |
lefcha |
1.33 |
|
148 |
lefcha |
1.42 |
exit(0); |
149 |
|
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} |
150 |
lefcha |
1.25 |
#endif |
151 |
lefcha |
1.33 |
|
152 |
lefcha |
1.60 |
log_start(); |
153 |
lefcha |
1.32 |
|
154 |
lefcha |
1.65 |
buffer_init(&ibuf); |
155 |
|
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buffer_init(&obuf); |
156 |
lefcha |
1.32 |
|
157 |
lefcha |
1.64 |
if (opts.daemon) |
158 |
|
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opts.verbosity = -2; |
159 |
lefcha |
1.62 |
|
160 |
lefcha |
1.42 |
do { |
161 |
lefcha |
1.66 |
imapfilter(); |
162 |
lefcha |
1.7 |
|
163 |
lefcha |
1.66 |
if (opts.daemon && !(flags & FLAG_DAEMON)) |
164 |
|
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daemonize(); |
165 |
|
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if (opts.daemon && flags & FLAG_SIGUSR1) { |
166 |
|
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reread_config(cf); |
167 |
|
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continue; |
168 |
|
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} |
169 |
|
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if (opts.daemon > 0) |
170 |
|
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sleep(opts.daemon); |
171 |
|
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} while (opts.daemon); |
172 |
|
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|
173 |
|
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log_stop(); |
174 |
lefcha |
1.67 |
|
175 |
lefcha |
1.66 |
secmem_clear(); |
176 |
|
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|
177 |
|
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lockfile_remove(); |
178 |
|
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|
179 |
|
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debug_stop(); |
180 |
|
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|
181 |
|
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exit(0); |
182 |
|
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} |
183 |
|
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|
184 |
|
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|
185 |
|
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/* |
186 |
|
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* Go through all accounts and apply filters to mailboxes as defined. |
187 |
|
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*/ |
188 |
|
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void |
189 |
|
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imapfilter(void) |
190 |
|
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{ |
191 |
|
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int r; |
192 |
|
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account_t *ca; |
193 |
|
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mbox_t *cm; |
194 |
|
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|
195 |
|
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for (ca = accounts; ca != NULL; ca = ca->next) { |
196 |
|
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|
197 |
|
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if (setjmp(acctloop)) |
198 |
|
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continue; |
199 |
lefcha |
1.35 |
|
200 |
lefcha |
1.68 |
if (init_connection(&connpri, ca->server, ca->port, ca->ssl)) |
201 |
lefcha |
1.66 |
continue; |
202 |
lefcha |
1.21 |
|
203 |
lefcha |
1.66 |
r = response_greeting(&connpri); |
204 |
lefcha |
1.18 |
|
205 |
lefcha |
1.66 |
if (opts.debug) |
206 |
|
|
test(&connpri); |
207 |
lefcha |
1.45 |
|
208 |
lefcha |
1.66 |
if (check_capabilities(&connpri)) |
209 |
|
|
continue; |
210 |
lefcha |
1.1 |
|
211 |
lefcha |
1.49 |
#ifdef SSL_TLS |
212 |
lefcha |
1.69 |
if (ca->ssl == SSL_DISABLED && |
213 |
|
|
connpri.caps & CAPABILITY_STARTTLS) |
214 |
lefcha |
1.66 |
if (negotiate_tls(&connpri) == RESPONSE_OK) |
215 |
|
|
check_capabilities(&connpri); |
216 |
lefcha |
1.49 |
#endif |
217 |
|
|
|
218 |
lefcha |
1.66 |
log_info(LOG_ACCOUNT, ca->key); |
219 |
lefcha |
1.1 |
|
220 |
lefcha |
1.66 |
if (r != RESPONSE_PREAUTH) { |
221 |
|
|
if (ca->pass_attr == PASS_ATTR_NONE) { |
222 |
|
|
printf("Enter password for %s@%s: ", |
223 |
|
|
ca->user, ca->server); |
224 |
|
|
get_password(ca->pass, PASS_LEN); |
225 |
|
|
ca->pass_attr = PASS_ATTR_PLAIN; |
226 |
|
|
} |
227 |
lefcha |
1.48 |
#ifdef CRAM_MD5 |
228 |
lefcha |
1.69 |
if (connpri.caps & CAPABILITY_CRAMMD5) |
229 |
lefcha |
1.68 |
r = auth_cram_md5(&connpri, ca->user, ca->pass); |
230 |
lefcha |
1.66 |
else |
231 |
lefcha |
1.48 |
#endif |
232 |
lefcha |
1.68 |
r = login(&connpri, ca->user, ca->pass); |
233 |
lefcha |
1.48 |
|
234 |
lefcha |
1.66 |
if (r == RESPONSE_NO) { |
235 |
|
|
error("username %s or password rejected " |
236 |
|
|
"at %s\n", ca->user, ca->server); |
237 |
|
|
continue; |
238 |
lefcha |
1.42 |
} |
239 |
lefcha |
1.33 |
} |
240 |
lefcha |
1.66 |
check_namespace(&connpri); |
241 |
lefcha |
1.11 |
|
242 |
lefcha |
1.66 |
for (cm = ca->mboxes; cm != NULL; cm = cm->next) |
243 |
|
|
if (*cm->filters == NULL) |
244 |
|
|
mailbox_status(&connpri, cm->name); |
245 |
|
|
else if (!select_mailbox(&connpri, cm->name)) { |
246 |
|
|
apply_filters(cm->name, cm->filters); |
247 |
|
|
close_mailbox(&connpri); |
248 |
lefcha |
1.58 |
} |
249 |
lefcha |
1.66 |
logout(&connpri); |
250 |
lefcha |
1.58 |
|
251 |
lefcha |
1.66 |
close_connection(&connpri); |
252 |
|
|
} |
253 |
|
|
} |
254 |
lefcha |
1.58 |
|
255 |
|
|
|
256 |
lefcha |
1.66 |
/* |
257 |
|
|
* Fork if in daemon mode. |
258 |
|
|
*/ |
259 |
|
|
void |
260 |
|
|
daemonize(void) |
261 |
|
|
{ |
262 |
lefcha |
1.17 |
|
263 |
lefcha |
1.66 |
switch (fork()) { |
264 |
|
|
case -1: |
265 |
lefcha |
1.68 |
fatal(ERROR_FORK, "forking; %s\n", strerror(errno)); |
266 |
lefcha |
1.66 |
break; |
267 |
|
|
case 0: |
268 |
|
|
break; |
269 |
|
|
default: |
270 |
|
|
log_stop(); |
271 |
|
|
secmem_clear(); |
272 |
|
|
debug_stop(); |
273 |
|
|
exit(0); |
274 |
|
|
break; |
275 |
|
|
} |
276 |
lefcha |
1.33 |
|
277 |
lefcha |
1.66 |
if (setsid() == -1) |
278 |
lefcha |
1.68 |
fatal(ERROR_FORK, "creating session; %s\n", strerror(errno)); |
279 |
lefcha |
1.66 |
|
280 |
|
|
switch (fork()) { |
281 |
|
|
case -1: |
282 |
lefcha |
1.68 |
fatal(ERROR_FORK, "forking; %s\n", strerror(errno)); |
283 |
lefcha |
1.66 |
break; |
284 |
|
|
case 0: |
285 |
|
|
break; |
286 |
|
|
default: |
287 |
|
|
log_stop(); |
288 |
|
|
secmem_clear(); |
289 |
|
|
debug_stop(); |
290 |
|
|
exit(0); |
291 |
|
|
break; |
292 |
|
|
} |
293 |
lefcha |
1.33 |
|
294 |
lefcha |
1.66 |
close(STDIN_FILENO); |
295 |
|
|
close(STDOUT_FILENO); |
296 |
|
|
close(STDERR_FILENO); |
297 |
|
|
if (open("/dev/null", O_RDWR) != -1) { |
298 |
|
|
dup(STDIN_FILENO); |
299 |
|
|
dup(STDIN_FILENO); |
300 |
|
|
} |
301 |
|
|
lockfile_create(); |
302 |
|
|
corefile_disable(); |
303 |
lefcha |
1.60 |
|
304 |
lefcha |
1.66 |
flags |= FLAG_DAEMON; |
305 |
lefcha |
1.1 |
} |
306 |
|
|
|
307 |
|
|
|
308 |
|
|
/* |
309 |
lefcha |
1.11 |
* Print a very brief usage message. |
310 |
lefcha |
1.2 |
*/ |
311 |
lefcha |
1.42 |
void |
312 |
|
|
usage(void) |
313 |
lefcha |
1.2 |
{ |
314 |
lefcha |
1.66 |
|
315 |
lefcha |
1.42 |
fprintf(stderr, |
316 |
lefcha |
1.63 |
"usage: imapfilter [-DVbk" |
317 |
lefcha |
1.26 |
#ifdef ENCRYPTED_PASSWORDS |
318 |
|
|
"p" |
319 |
lefcha |
1.33 |
#endif |
320 |
lefcha |
1.63 |
"qv] [-c configfile] [-d interval] [-l logfile]\n"); |
321 |
|
|
|
322 |
|
|
exit(ERROR_UNDEFINED); |
323 |
lefcha |
1.38 |
} |
324 |
|
|
|
325 |
|
|
|
326 |
|
|
/* |
327 |
|
|
* Print program's version, and if it is built in, OpenSSL's version number. |
328 |
|
|
*/ |
329 |
lefcha |
1.42 |
void |
330 |
|
|
version(void) |
331 |
lefcha |
1.38 |
{ |
332 |
lefcha |
1.66 |
|
333 |
lefcha |
1.42 |
fprintf(stderr, "IMAPFilter %s" |
334 |
lefcha |
1.53 |
#if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5 |
335 |
lefcha |
1.38 |
", OpenSSL 0x%8.8lx" |
336 |
|
|
#endif |
337 |
|
|
"\n", IMAPFILTER_VERSION |
338 |
lefcha |
1.53 |
#if defined SSL_TLS || defined ENCRYPTED_PASSWORDS || defined CRAM_MD5 |
339 |
lefcha |
1.38 |
,SSLeay() |
340 |
|
|
#endif |
341 |
lefcha |
1.42 |
); |
342 |
lefcha |
1.63 |
|
343 |
|
|
exit(ERROR_UNDEFINED); |
344 |
lefcha |
1.1 |
} |