|
0
|
1 /* movemail foo bar -- move file foo to file bar,
|
|
398
|
2 locking file foo.
|
|
118
|
3 Copyright (C) 1986, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.
|
|
0
|
4
|
|
398
|
5 This file is part of XEmacs.
|
|
0
|
6
|
|
398
|
7 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
8 under the terms of the GNU General Public License as published by the
|
|
|
9 Free Software Foundation; either version 2, or (at your option) any
|
|
|
10 later version.
|
|
0
|
11
|
|
398
|
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
15 for more details.
|
|
0
|
16
|
|
|
17 You should have received a copy of the GNU General Public License
|
|
398
|
18 along with XEmacs; see the file COPYING. If not, write to
|
|
118
|
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
398
|
20 Boston, MA 02111-1307, USA.
|
|
|
21
|
|
|
22 Please mail bugs and suggestions to the XEmacs maintainer.
|
|
|
23 */
|
|
0
|
24
|
|
398
|
25 /* Important notice:
|
|
|
26 *
|
|
|
27 * You *must* coordinate the locking method used by movemail with that
|
|
|
28 * used by your mail delivery agent, as well as that of the other mail
|
|
|
29 * user agents on your system. movemail allows you to do this at run
|
|
|
30 * time via the -m flag. Moreover, it uses a default determined by
|
|
|
31 * the MAIL_LOCK_DOT, MAIL_LOCK_LOCKF, MAIL_LOCK_FLOCK,
|
|
|
32 * MAIL_LOCK_LOCKING, and MAIL_LOCK_MMDF preprocessor settings.
|
|
|
33 */
|
|
0
|
34
|
|
398
|
35 /*
|
|
|
36 * Mike Sperber <sperber@informatik.uni-tuebingen.de> reorganized
|
|
|
37 * everything that has to with locking in December 1999.
|
|
|
38 */
|
|
0
|
39
|
|
|
40 /*
|
|
|
41 * Modified January, 1986 by Michael R. Gretzinger (Project Athena)
|
|
|
42 *
|
|
118
|
43 * Added POP (Post Office Protocol) service. When compiled -DMAIL_USE_POP
|
|
0
|
44 * movemail will accept input filename arguments of the form
|
|
|
45 * "po:username". This will cause movemail to open a connection to
|
|
|
46 * a pop server running on $MAILHOST (environment variable). Movemail
|
|
|
47 * must be setuid to root in order to work with POP.
|
|
|
48 *
|
|
|
49 * New module: popmail.c
|
|
|
50 * Modified routines:
|
|
|
51 * main - added code within #ifdef MAIL_USE_POP; added setuid (getuid ())
|
|
|
52 * after POP code.
|
|
|
53 * New routines in movemail.c:
|
|
|
54 * get_errmsg - return pointer to system error message
|
|
|
55 *
|
|
118
|
56 * Modified August, 1993 by Jonathan Kamens (OpenVision Technologies)
|
|
|
57 *
|
|
|
58 * Move all of the POP code into a separate file, "pop.c".
|
|
|
59 * Use strerror instead of get_errmsg.
|
|
|
60 *
|
|
0
|
61 */
|
|
|
62
|
|
|
63 #define NO_SHORTNAMES /* Tell config not to load remap.h */
|
|
384
|
64 #define DONT_ENCAPSULATE
|
|
398
|
65 #include <config.h>
|
|
0
|
66 #include <sys/types.h>
|
|
|
67 #include <sys/stat.h>
|
|
118
|
68 #include <stdio.h>
|
|
0
|
69 #include <errno.h>
|
|
384
|
70 #include "../src/sysfile.h"
|
|
157
|
71 #include "../src/syswait.h"
|
|
384
|
72 #ifndef WINDOWSNT
|
|
163
|
73 #include "../src/systime.h"
|
|
384
|
74 #endif
|
|
122
|
75 #include <stdlib.h>
|
|
|
76 #include <string.h>
|
|
377
|
77 #include "getopt.h"
|
|
118
|
78 #ifdef MAIL_USE_POP
|
|
|
79 #include "pop.h"
|
|
380
|
80 #include "../src/regex.h"
|
|
118
|
81 #endif
|
|
54
|
82
|
|
377
|
83 extern char *optarg;
|
|
|
84 extern int optind, opterr;
|
|
|
85
|
|
175
|
86 #ifndef HAVE_STRERROR
|
|
388
|
87 char * strerror (int errnum);
|
|
175
|
88 #endif /* HAVE_STRERROR */
|
|
|
89
|
|
0
|
90 #ifdef MSDOS
|
|
|
91 #undef access
|
|
|
92 #endif /* MSDOS */
|
|
|
93
|
|
118
|
94 #ifndef DIRECTORY_SEP
|
|
|
95 #define DIRECTORY_SEP '/'
|
|
|
96 #endif
|
|
|
97 #ifndef IS_DIRECTORY_SEP
|
|
|
98 #define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
|
|
|
99 #endif
|
|
|
100
|
|
|
101 #ifdef WINDOWSNT
|
|
|
102 #undef access
|
|
|
103 #undef unlink
|
|
|
104 #define fork() 0
|
|
|
105 #define sys_wait(var) (*(var) = 0)
|
|
|
106 /* Unfortunately, Samba doesn't seem to properly lock Unix files even
|
|
|
107 though the locking call succeeds (and indeed blocks local access from
|
|
|
108 other NT programs). If you have direct file access using an NFS
|
|
|
109 client or something other than Samba, the locking call might work
|
|
|
110 properly - make sure it does before you enable this! */
|
|
|
111 #define DISABLE_DIRECT_ACCESS
|
|
288
|
112 #include <io.h>
|
|
118
|
113 #endif /* WINDOWSNT */
|
|
|
114
|
|
398
|
115 #if defined (HAVE_UNISTD_H)
|
|
0
|
116 #include <unistd.h>
|
|
163
|
117 #endif /* unistd.h */
|
|
0
|
118 #ifndef F_OK
|
|
|
119 #define F_OK 0
|
|
|
120 #define X_OK 1
|
|
|
121 #define W_OK 2
|
|
|
122 #define R_OK 4
|
|
163
|
123 #endif /* No F_OK */
|
|
0
|
124
|
|
398
|
125 #if defined (HAVE_FCNTL_H)
|
|
163
|
126 #include <fcntl.h>
|
|
|
127 #endif /* fcntl.h */
|
|
0
|
128
|
|
398
|
129 #ifdef HAVE_LOCKING
|
|
0
|
130 #include <sys/locking.h>
|
|
|
131 #endif
|
|
|
132
|
|
398
|
133 #ifdef HAVE_MMDF
|
|
0
|
134 extern int lk_open (), lk_close ();
|
|
|
135 #endif
|
|
|
136
|
|
|
137 /* Cancel substitutions made by config.h for Emacs. */
|
|
|
138 #undef open
|
|
|
139 #undef read
|
|
|
140 #undef write
|
|
|
141 #undef close
|
|
|
142
|
|
173
|
143 static void fatal (char *, char*);
|
|
|
144 static void error (char *, char *, char *);
|
|
398
|
145 static void usage(int);
|
|
173
|
146 static void pfatal_with_name (char *);
|
|
|
147 static void pfatal_and_delete (char *);
|
|
|
148 static char *concat (char *, char *, char *);
|
|
|
149 static long *xmalloc (unsigned int);
|
|
213
|
150 #ifdef MAIL_USE_POP
|
|
173
|
151 static int popmail (char *, char *, char *);
|
|
398
|
152 static int pop_retr (popserver server, int msgno,
|
|
|
153 int (*action)(char *, FILE *), FILE *arg);
|
|
173
|
154 static int mbx_write (char *, FILE *);
|
|
|
155 static int mbx_delimit_begin (FILE *);
|
|
|
156 static int mbx_delimit_end (FILE *);
|
|
377
|
157 static struct re_pattern_buffer* compile_regex (char* regexp_pattern);
|
|
|
158 static int pop_search_top (popserver server, int msgno, int lines,
|
|
|
159 struct re_pattern_buffer* regexp);
|
|
213
|
160 #endif
|
|
0
|
161
|
|
377
|
162 int verbose=0;
|
|
|
163 #ifdef MAIL_USE_POP
|
|
|
164 int reverse=0;
|
|
|
165 int keep_messages=0;
|
|
|
166 struct re_pattern_buffer* regexp_pattern=0;
|
|
|
167 int match_lines=10;
|
|
|
168 #endif
|
|
|
169
|
|
|
170 #define VERBOSE(x) if (verbose) { printf x; fflush(stdout); }
|
|
|
171
|
|
|
172 struct option longopts[] =
|
|
|
173 {
|
|
|
174 { "inbox", required_argument, NULL, 'i' },
|
|
|
175 { "outfile", required_argument, NULL, 'o' },
|
|
|
176 #ifdef MAIL_USE_POP
|
|
|
177 { "password", required_argument, NULL, 'p' },
|
|
|
178 { "reverse-pop-order", no_argument, NULL, 'x' },
|
|
|
179 { "keep-messages", no_argument, NULL, 'k' },
|
|
|
180 { "regex", required_argument, NULL, 'r' },
|
|
|
181 { "match-lines", required_argument, NULL, 'l' },
|
|
|
182 #endif
|
|
398
|
183 { "lock-method", required_argument, NULL, 'm' },
|
|
|
184 { "help", no_argument, NULL, 'h' },
|
|
377
|
185 { "verbose", no_argument, NULL, 'v' },
|
|
|
186 { 0 }
|
|
|
187 };
|
|
|
188
|
|
398
|
189 #define DOTLOCKING 0
|
|
|
190 #define FLOCKING 1
|
|
|
191 #define LOCKFING 2
|
|
|
192 #define MMDF 3
|
|
|
193 #define LOCKING 4
|
|
|
194
|
|
|
195 #if defined(MAIL_LOCK_FLOCK) && defined(HAVE_FLOCK)
|
|
|
196 #define DEFAULT_LOCKING FLOCKING
|
|
|
197 #elif defined(MAIL_LOCK_LOCKF) && defined(HAVE_LOCKF)
|
|
|
198 #define DEFAULT_LOCKING LOCKFING
|
|
|
199 #elif defined(MAIL_LOCK_MMDF) && defined(HAVE_MMDF)
|
|
|
200 #define DEFAULT_LOCKING MMDF
|
|
|
201 #elif defined(MAIL_LOCK_LOCKING) && defined(HAVE_LOCKING)
|
|
|
202 #define DEFAULT_LOCKING LOCKING
|
|
|
203 #else
|
|
|
204 #define DEFAULT_LOCKING DOTLOCKING
|
|
|
205 #endif
|
|
|
206
|
|
400
|
207 #ifndef DISABLE_DIRECT_ACCESS
|
|
398
|
208 static void lock_dot(char *);
|
|
400
|
209 #endif
|
|
398
|
210 static void unlock_dot(char *);
|
|
|
211 static int parse_lock_method(char *);
|
|
|
212 static char *unparse_lock_method(int);
|
|
|
213
|
|
118
|
214 int
|
|
173
|
215 main (int argc, char *argv[])
|
|
0
|
216 {
|
|
377
|
217 char *inname=0, *outname=0, *poppass=0;
|
|
288
|
218 #ifndef DISABLE_DIRECT_ACCESS
|
|
0
|
219 int indesc, outdesc;
|
|
|
220 int nread;
|
|
155
|
221 int status;
|
|
288
|
222 #endif
|
|
0
|
223
|
|
398
|
224 int lock_method = DEFAULT_LOCKING;
|
|
|
225
|
|
|
226 char *maybe_lock_env;
|
|
0
|
227
|
|
398
|
228 maybe_lock_env = getenv("EMACSLOCKMETHOD");
|
|
|
229 if (maybe_lock_env)
|
|
|
230 {
|
|
|
231 printf("maybe-lock_env: %s\n", maybe_lock_env);
|
|
|
232 lock_method = parse_lock_method(maybe_lock_env);
|
|
|
233 }
|
|
0
|
234
|
|
398
|
235 for (;;)
|
|
118
|
236 {
|
|
377
|
237 #ifdef MAIL_USE_POP
|
|
398
|
238 char* optstring = "i:o:m:p:l:r:xvhk";
|
|
377
|
239 #else
|
|
398
|
240 char* optstring = "i:o:m:vh";
|
|
377
|
241 #endif
|
|
|
242 int opt = getopt_long (argc, argv, optstring, longopts, 0);
|
|
|
243
|
|
|
244 if (opt == EOF)
|
|
|
245 break;
|
|
|
246
|
|
|
247 switch (opt)
|
|
|
248 {
|
|
|
249 case 0:
|
|
|
250 break;
|
|
|
251 case 1: /* one of the standard arguments seen */
|
|
|
252 if (!inname)
|
|
|
253 inname = optarg;
|
|
|
254 else if (!outname)
|
|
|
255 outname = optarg;
|
|
|
256 else
|
|
|
257 poppass = optarg;
|
|
|
258 break;
|
|
|
259
|
|
|
260 case 'i': /* infile */
|
|
|
261 inname = optarg;
|
|
|
262 break;
|
|
|
263
|
|
|
264 case 'o': /* outfile */
|
|
|
265 outname = optarg;
|
|
|
266 break;
|
|
|
267 #ifdef MAIL_USE_POP
|
|
|
268 case 'p': /* pop password */
|
|
|
269 poppass = optarg;
|
|
|
270 break;
|
|
|
271 case 'k': keep_messages=1; break;
|
|
|
272 case 'x': reverse = 1; break;
|
|
|
273 case 'l': /* lines to match */
|
|
|
274 match_lines = atoi (optarg);
|
|
|
275 break;
|
|
|
276
|
|
|
277 case 'r': /* regular expression */
|
|
|
278 regexp_pattern = compile_regex (optarg);
|
|
|
279 break;
|
|
|
280 #endif
|
|
398
|
281
|
|
|
282 case 'm':
|
|
|
283 lock_method = parse_lock_method(optarg);
|
|
|
284 break;
|
|
|
285 case 'h':
|
|
|
286 usage(lock_method);
|
|
|
287 exit(0);
|
|
|
288 case 'v':
|
|
|
289 verbose = 1;
|
|
|
290 break;
|
|
377
|
291 }
|
|
|
292 }
|
|
|
293
|
|
|
294 while (optind < argc)
|
|
|
295 {
|
|
|
296 if (!inname)
|
|
|
297 inname = argv[optind];
|
|
|
298 else if (!outname)
|
|
|
299 outname = argv[optind];
|
|
|
300 else
|
|
|
301 poppass = argv[optind];
|
|
|
302 optind++;
|
|
|
303 }
|
|
|
304
|
|
|
305 if (!inname || !outname)
|
|
|
306 {
|
|
398
|
307 usage(lock_method);
|
|
371
|
308 exit(1);
|
|
321
|
309 }
|
|
|
310
|
|
398
|
311 #ifdef HAVE_MMDF
|
|
|
312 if (lock_method == MMDF)
|
|
|
313 mmdf_init (argv[0]);
|
|
0
|
314 #endif
|
|
|
315
|
|
118
|
316 if (*outname == 0)
|
|
|
317 fatal ("Destination file name is empty", 0);
|
|
|
318
|
|
398
|
319 VERBOSE(("checking access to output file\n"));
|
|
0
|
320 /* Check access to output file. */
|
|
|
321 if (access (outname, F_OK) == 0 && access (outname, W_OK) != 0)
|
|
|
322 pfatal_with_name (outname);
|
|
|
323
|
|
118
|
324 /* Also check that outname's directory is writable to the real uid. */
|
|
0
|
325 {
|
|
|
326 char *buf = (char *) xmalloc (strlen (outname) + 1);
|
|
173
|
327 char *cp;
|
|
0
|
328 strcpy (buf, outname);
|
|
173
|
329 cp = buf + strlen (buf);
|
|
|
330 while (cp > buf && !IS_DIRECTORY_SEP (cp[-1]))
|
|
|
331 *--cp = 0;
|
|
|
332 if (cp == buf)
|
|
|
333 *cp++ = '.';
|
|
0
|
334 if (access (buf, W_OK) != 0)
|
|
|
335 pfatal_with_name (buf);
|
|
|
336 free (buf);
|
|
|
337 }
|
|
|
338
|
|
|
339 #ifdef MAIL_USE_POP
|
|
118
|
340 if (!strncmp (inname, "po:", 3))
|
|
0
|
341 {
|
|
377
|
342 int retcode = popmail (inname + 3, outname, poppass);
|
|
272
|
343 exit (retcode);
|
|
0
|
344 }
|
|
|
345
|
|
384
|
346 #ifndef WINDOWSNT
|
|
0
|
347 setuid (getuid ());
|
|
384
|
348 #endif
|
|
0
|
349 #endif /* MAIL_USE_POP */
|
|
|
350
|
|
118
|
351 #ifndef DISABLE_DIRECT_ACCESS
|
|
|
352
|
|
0
|
353 /* Check access to input file. */
|
|
|
354 if (access (inname, R_OK | W_OK) != 0)
|
|
|
355 pfatal_with_name (inname);
|
|
|
356
|
|
398
|
357
|
|
|
358 if (fork () == 0)
|
|
|
359 {
|
|
|
360 setuid (getuid ());
|
|
|
361
|
|
|
362 VERBOSE(("opening input file\n"));
|
|
|
363
|
|
|
364 switch (lock_method)
|
|
|
365 {
|
|
|
366 case DOTLOCKING:
|
|
|
367 indesc = open (inname, O_RDONLY);
|
|
|
368 break;
|
|
|
369 #ifdef HAVE_LOCKF
|
|
|
370 case LOCKFING:
|
|
|
371 indesc = open (inname, O_RDWR);
|
|
|
372 break;
|
|
|
373 #endif
|
|
|
374 #ifdef HAVE_FLOCK
|
|
|
375 case FLOCKING:
|
|
|
376 indesc = open (inname, O_RDWR);
|
|
|
377 break;
|
|
|
378 #endif
|
|
|
379 #ifdef HAVE_LOCKING
|
|
|
380 case LOCKING:
|
|
|
381 indesc = open (inname, O_RDWR);
|
|
|
382 break;
|
|
|
383 #endif
|
|
|
384 #ifdef HAVE_MMDF
|
|
|
385 case MMDF:
|
|
|
386 indesc = lk_open (inname, O_RDONLY, 0, 0, 10);
|
|
|
387 break;
|
|
|
388 #endif
|
|
|
389 default: abort();
|
|
|
390 }
|
|
|
391
|
|
|
392 if (indesc < 0)
|
|
|
393 pfatal_with_name (inname);
|
|
|
394
|
|
|
395 #ifdef HAVE_UMASK
|
|
|
396 /* In case movemail is setuid to root, make sure the user can
|
|
|
397 read the output file. */
|
|
|
398 umask (umask (0) & 0333);
|
|
|
399 #endif
|
|
|
400
|
|
|
401 outdesc = open (outname, O_WRONLY | O_CREAT | O_EXCL, 0666);
|
|
|
402 if (outdesc < 0)
|
|
|
403 pfatal_with_name (outname);
|
|
|
404
|
|
|
405 VERBOSE(("locking input file\n"));
|
|
0
|
406
|
|
398
|
407 switch (lock_method)
|
|
|
408 {
|
|
|
409 #ifdef HAVE_LOCKF
|
|
|
410 case LOCKFING:
|
|
|
411 if (lockf (indesc, F_LOCK, 0) < 0)
|
|
|
412 pfatal_with_name (inname);
|
|
|
413 break;
|
|
|
414 #endif
|
|
|
415 #ifdef HAVE_FLOCK
|
|
|
416 case FLOCKING:
|
|
|
417 if (flock (indesc, LOCK_EX) < 0)
|
|
|
418 pfatal_with_name (inname);
|
|
|
419 break;
|
|
|
420 #endif
|
|
|
421 #ifdef HAVE_LOCKING
|
|
|
422 case LOCKING:
|
|
|
423 if (locking (indesc, LK_RLCK, -1L) < 0)
|
|
|
424 pfatal_with_name (inname);
|
|
|
425 break;
|
|
|
426 #endif
|
|
|
427 case DOTLOCKING:
|
|
|
428 lock_dot(inname);
|
|
|
429 break;
|
|
|
430 }
|
|
|
431
|
|
|
432 VERBOSE(("copying input file to output file\n"));
|
|
|
433
|
|
|
434 {
|
|
|
435 char buf[1024];
|
|
|
436
|
|
|
437 while (1)
|
|
|
438 {
|
|
|
439 nread = read (indesc, buf, sizeof buf);
|
|
|
440 if (nread != write (outdesc, buf, nread))
|
|
|
441 {
|
|
|
442 int saved_errno = errno;
|
|
|
443 unlink (outname);
|
|
|
444 errno = saved_errno;
|
|
|
445 pfatal_with_name (outname);
|
|
|
446 }
|
|
|
447 if (nread < sizeof buf)
|
|
|
448 break;
|
|
|
449 }
|
|
|
450 }
|
|
|
451
|
|
|
452 #ifdef HAVE_FSYNC
|
|
|
453 if (fsync (outdesc) < 0)
|
|
|
454 pfatal_and_delete (outname);
|
|
|
455 #endif
|
|
|
456
|
|
|
457 /* Check to make sure no errors before we zap the inbox. */
|
|
|
458 if (close (outdesc) != 0)
|
|
|
459 pfatal_and_delete (outname);
|
|
|
460
|
|
|
461 VERBOSE(("deleting or truncating input file\n"));
|
|
0
|
462
|
|
398
|
463 switch (lock_method)
|
|
|
464 {
|
|
|
465 case LOCKFING:
|
|
|
466 case FLOCKING:
|
|
|
467 case LOCKING:
|
|
|
468 #ifdef HAVE_FTRUNCATE
|
|
|
469 ftruncate (indesc, 0L);
|
|
|
470 #else
|
|
|
471 close (open (inname, O_CREAT | O_TRUNC | O_RDWR, 0666));
|
|
|
472 #endif
|
|
|
473 close (indesc);
|
|
|
474 break;
|
|
|
475 #ifdef HAVE_MMDF
|
|
|
476 case MMDF:
|
|
|
477 lk_close (indesc, 0, 0, 0);
|
|
|
478 break;
|
|
|
479 #endif
|
|
|
480 case DOTLOCKING:
|
|
|
481 creat (inname, 0600);
|
|
|
482 break;
|
|
|
483 }
|
|
|
484
|
|
|
485 exit (0);
|
|
|
486 }
|
|
0
|
487
|
|
398
|
488 wait (&status);
|
|
|
489 if (!WIFEXITED (status))
|
|
|
490 exit (1);
|
|
|
491 else if (WEXITSTATUS (status) != 0)
|
|
|
492 exit (WEXITSTATUS (status));
|
|
|
493
|
|
|
494 if (lock_method == DOTLOCKING)
|
|
|
495 unlock_dot(inname);
|
|
|
496
|
|
|
497 #endif /* not DISABLE_DIRECT_ACCESS */
|
|
|
498
|
|
|
499 return 0;
|
|
|
500 }
|
|
|
501
|
|
|
502 static void
|
|
|
503 usage(int lock_method)
|
|
|
504 {
|
|
|
505 printf ("Usage: movemail [-rvxkh] [-l lines ] [-m method ] [-i] inbox [-o] destfile [[-p] POP-password]\n");
|
|
|
506 printf("where method is one of: dot");
|
|
|
507 #ifdef HAVE_LOCKF
|
|
|
508 printf(", lockf");
|
|
|
509 #endif
|
|
|
510 #ifdef HAVE_FLOCK
|
|
|
511 printf(", flock");
|
|
|
512 #endif
|
|
|
513 #ifdef HAVE_MMDF
|
|
|
514 printf(", mmdf");
|
|
|
515 #endif
|
|
|
516 #ifdef HAVE_LOCKING
|
|
|
517 printf(", locking");
|
|
|
518 #endif
|
|
|
519 printf("\nDefault is: %s\n", unparse_lock_method(lock_method));
|
|
|
520
|
|
|
521 }
|
|
0
|
522
|
|
398
|
523 static char *
|
|
|
524 unparse_lock_method(int lock_method)
|
|
|
525 {
|
|
|
526 switch (lock_method)
|
|
|
527 {
|
|
|
528 case DOTLOCKING: return "dot";
|
|
|
529 case FLOCKING: return "flock";
|
|
|
530 case LOCKFING: return "lockf";
|
|
|
531 case LOCKING: return "locking";
|
|
|
532 case MMDF: return "mmdf";
|
|
|
533 default: abort();return 0;
|
|
|
534 }
|
|
|
535 }
|
|
0
|
536
|
|
398
|
537 static int
|
|
|
538 parse_lock_method(char *method_name)
|
|
|
539 {
|
|
|
540 if (!strcmp("dot", method_name) || !strcmp("file", method_name))
|
|
|
541 return DOTLOCKING;
|
|
|
542 #ifdef HAVE_LOCKF
|
|
|
543 else if (!strcmp("lockf", method_name))
|
|
|
544 return LOCKFING;
|
|
|
545 #endif
|
|
|
546 #ifdef HAVE_FLOCK
|
|
|
547 else if (!strcmp("flock", method_name))
|
|
|
548 return FLOCKING;
|
|
|
549 #endif
|
|
|
550 #ifdef HAVE_MMDF
|
|
|
551 else if (!strcmp("mmdf", method_name))
|
|
|
552 return MMDF;
|
|
|
553 #endif
|
|
|
554 #ifdef HAVE_LOCKING
|
|
|
555 else if (!strcmp("locking", method_name))
|
|
|
556 return LOCKING;
|
|
|
557 #endif
|
|
|
558 else
|
|
|
559 fatal("invalid lock method: %s", method_name);
|
|
|
560 return 0; /* unreached */
|
|
|
561 }
|
|
|
562
|
|
|
563 static char *
|
|
|
564 dot_filename(char *filename)
|
|
|
565 {
|
|
|
566 return concat (filename, ".lock", "");
|
|
|
567 }
|
|
|
568
|
|
|
569 static char *dotlock_filename = NULL;
|
|
|
570
|
|
400
|
571 #ifndef DISABLE_DIRECT_ACCESS
|
|
398
|
572 static void
|
|
|
573 lock_dot(char *filename)
|
|
|
574 {
|
|
|
575 struct stat st;
|
|
|
576 long now;
|
|
|
577 int tem;
|
|
|
578 char *lockname, *p;
|
|
|
579 char *tempname;
|
|
|
580 int desc;
|
|
|
581
|
|
|
582 dotlock_filename = (char *) xmalloc(strlen(filename) + 1);
|
|
|
583
|
|
|
584 /* Use a lock file named after our first argument with .lock appended:
|
|
|
585 If it exists, the mail file is locked. */
|
|
|
586
|
|
|
587 lockname = dot_filename(filename);
|
|
|
588 tempname = (char *) xmalloc (strlen (filename) + strlen ("EXXXXXX") + 1);
|
|
|
589 strcpy (tempname, filename);
|
|
0
|
590 p = tempname + strlen (tempname);
|
|
118
|
591 while (p != tempname && !IS_DIRECTORY_SEP (p[-1]))
|
|
0
|
592 p--;
|
|
|
593 *p = 0;
|
|
|
594 strcpy (p, "EXXXXXX");
|
|
|
595 mktemp (tempname);
|
|
|
596 unlink (tempname);
|
|
|
597
|
|
398
|
598 for (;;)
|
|
0
|
599 {
|
|
|
600 /* Create the lock file, but not under the lock file name. */
|
|
|
601 /* Give up if cannot do that. */
|
|
|
602 desc = open (tempname, O_WRONLY | O_CREAT | O_EXCL, 0666);
|
|
|
603 if (desc < 0)
|
|
118
|
604 {
|
|
|
605 char *message = (char *) xmalloc (strlen (tempname) + 50);
|
|
|
606 sprintf (message, "%s--see source file lib-src/movemail.c",
|
|
|
607 tempname);
|
|
|
608 pfatal_with_name (message);
|
|
|
609 }
|
|
0
|
610 close (desc);
|
|
|
611
|
|
|
612 tem = link (tempname, lockname);
|
|
|
613 unlink (tempname);
|
|
|
614 if (tem >= 0)
|
|
|
615 break;
|
|
|
616 sleep (1);
|
|
|
617
|
|
118
|
618 /* If lock file is five minutes old, unlock it.
|
|
|
619 Five minutes should be good enough to cope with crashes
|
|
|
620 and wedgitude, and long enough to avoid being fooled
|
|
|
621 by time differences between machines. */
|
|
0
|
622 if (stat (lockname, &st) >= 0)
|
|
|
623 {
|
|
|
624 now = time (0);
|
|
118
|
625 if (st.st_ctime < now - 300)
|
|
|
626 unlink (lockname);
|
|
0
|
627 }
|
|
|
628 }
|
|
398
|
629 strcpy(dotlock_filename, filename);
|
|
|
630 }
|
|
400
|
631 #endif /* not DISABLE_DIRECT_ACCESS */
|
|
0
|
632
|
|
398
|
633 static void
|
|
|
634 unlock_dot(char *filename)
|
|
|
635 {
|
|
|
636 unlink(dot_filename(filename));
|
|
|
637 }
|
|
0
|
638
|
|
398
|
639 static void
|
|
|
640 maybe_unlock_dot(void)
|
|
|
641 {
|
|
|
642 if (dotlock_filename)
|
|
|
643 unlock_dot(dotlock_filename);
|
|
|
644 }
|
|
0
|
645
|
|
|
646 /* Print error message and exit. */
|
|
|
647
|
|
173
|
648 static void
|
|
|
649 fatal (char *s1, char *s2)
|
|
0
|
650 {
|
|
398
|
651 maybe_unlock_dot();
|
|
173
|
652 error (s1, s2, NULL);
|
|
0
|
653 exit (1);
|
|
|
654 }
|
|
|
655
|
|
|
656 /* Print error message. `s1' is printf control string, `s2' is arg for it. */
|
|
|
657
|
|
173
|
658 static void
|
|
|
659 error (char *s1, char *s2, char *s3)
|
|
0
|
660 {
|
|
118
|
661 fprintf (stderr, "movemail: ");
|
|
|
662 fprintf (stderr, s1, s2, s3);
|
|
|
663 fprintf (stderr, "\n");
|
|
0
|
664 }
|
|
|
665
|
|
173
|
666 static void
|
|
|
667 pfatal_with_name (char *name)
|
|
0
|
668 {
|
|
118
|
669 char *s = concat ("", strerror (errno), " for %s");
|
|
0
|
670 fatal (s, name);
|
|
|
671 }
|
|
|
672
|
|
173
|
673 static void
|
|
|
674 pfatal_and_delete (char *name)
|
|
0
|
675 {
|
|
118
|
676 char *s = concat ("", strerror (errno), " for %s");
|
|
0
|
677 unlink (name);
|
|
|
678 fatal (s, name);
|
|
|
679 }
|
|
|
680
|
|
|
681 /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */
|
|
|
682
|
|
173
|
683 static char *
|
|
|
684 concat (char *s1, char *s2, char *s3)
|
|
0
|
685 {
|
|
|
686 int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
|
|
|
687 char *result = (char *) xmalloc (len1 + len2 + len3 + 1);
|
|
|
688
|
|
|
689 strcpy (result, s1);
|
|
|
690 strcpy (result + len1, s2);
|
|
|
691 strcpy (result + len1 + len2, s3);
|
|
|
692 *(result + len1 + len2 + len3) = 0;
|
|
|
693
|
|
|
694 return result;
|
|
|
695 }
|
|
|
696
|
|
|
697 /* Like malloc but get fatal error if memory is exhausted. */
|
|
|
698
|
|
173
|
699 static long *
|
|
|
700 xmalloc (unsigned int size)
|
|
0
|
701 {
|
|
118
|
702 long *result = (long *) malloc (size);
|
|
0
|
703 if (!result)
|
|
118
|
704 fatal ("virtual memory exhausted", 0);
|
|
0
|
705 return result;
|
|
|
706 }
|
|
398
|
707
|
|
0
|
708 /* This is the guts of the interface to the Post Office Protocol. */
|
|
|
709
|
|
|
710 #ifdef MAIL_USE_POP
|
|
|
711
|
|
118
|
712 #ifndef WINDOWSNT
|
|
0
|
713 #include <sys/socket.h>
|
|
|
714 #include <netinet/in.h>
|
|
|
715 #include <netdb.h>
|
|
118
|
716 #else
|
|
|
717 #undef _WINSOCKAPI_
|
|
|
718 #include <winsock.h>
|
|
|
719 #endif
|
|
0
|
720 #include <stdio.h>
|
|
|
721 #include <pwd.h>
|
|
|
722
|
|
377
|
723 #define POP_ERROR (-1)
|
|
|
724 #define POP_RETRIEVED (0)
|
|
|
725 #define POP_DONE (1)
|
|
0
|
726
|
|
|
727 char *progname;
|
|
|
728 FILE *sfi;
|
|
|
729 FILE *sfo;
|
|
118
|
730 char ibuffer[BUFSIZ];
|
|
|
731 char obuffer[BUFSIZ];
|
|
0
|
732 char Errmsg[80];
|
|
|
733
|
|
173
|
734 static int
|
|
|
735 popmail (char *user, char *outfile, char *password)
|
|
0
|
736 {
|
|
|
737 int nmsgs, nbytes;
|
|
377
|
738 register int i, idx;
|
|
0
|
739 int mbfi;
|
|
377
|
740 short* retrieved_list;
|
|
0
|
741 FILE *mbf;
|
|
118
|
742 popserver server;
|
|
0
|
743
|
|
398
|
744 VERBOSE(("opening server\n"));
|
|
118
|
745 server = pop_open (0, user, password, POP_NO_GETPASS);
|
|
|
746 if (! server)
|
|
0
|
747 {
|
|
173
|
748 error (pop_error, NULL, NULL);
|
|
118
|
749 return (1);
|
|
0
|
750 }
|
|
|
751
|
|
398
|
752 VERBOSE(("stat'ing messages\n"));
|
|
118
|
753 if (pop_stat (server, &nmsgs, &nbytes))
|
|
0
|
754 {
|
|
173
|
755 error (pop_error, NULL, NULL);
|
|
118
|
756 return (1);
|
|
0
|
757 }
|
|
|
758
|
|
|
759 if (!nmsgs)
|
|
118
|
760 {
|
|
377
|
761 VERBOSE(("closing server\n"));
|
|
118
|
762 pop_close (server);
|
|
|
763 return (0);
|
|
|
764 }
|
|
0
|
765
|
|
377
|
766 /* build a retrieved table */
|
|
|
767 retrieved_list = (short*) xmalloc (sizeof (short) * (nmsgs+1));
|
|
|
768 memset (retrieved_list, 0, sizeof (short) * (nmsgs+1));
|
|
|
769
|
|
0
|
770 mbfi = open (outfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
|
|
|
771 if (mbfi < 0)
|
|
118
|
772 {
|
|
|
773 pop_close (server);
|
|
|
774 error ("Error in open: %s, %s", strerror (errno), outfile);
|
|
|
775 return (1);
|
|
|
776 }
|
|
384
|
777 #if !defined(__CYGWIN32__) && !defined(WINDOWSNT)
|
|
398
|
778 fchown (mbfi, getuid (), (gid_t) -1);
|
|
259
|
779 #endif
|
|
0
|
780
|
|
118
|
781 if ((mbf = fdopen (mbfi, "wb")) == NULL)
|
|
0
|
782 {
|
|
118
|
783 pop_close (server);
|
|
173
|
784 error ("Error in fdopen: %s", strerror (errno), NULL);
|
|
118
|
785 close (mbfi);
|
|
|
786 unlink (outfile);
|
|
|
787 return (1);
|
|
0
|
788 }
|
|
|
789
|
|
377
|
790 for (idx = 0; idx < nmsgs; idx++)
|
|
0
|
791 {
|
|
377
|
792 i = reverse ? nmsgs - idx : idx + 1;
|
|
398
|
793 VERBOSE(("checking message %d \n", i));
|
|
377
|
794
|
|
|
795 if (!regexp_pattern
|
|
|
796 ||
|
|
|
797 pop_search_top (server, i, match_lines, regexp_pattern) == POP_RETRIEVED)
|
|
118
|
798 {
|
|
398
|
799 VERBOSE(("retrieving message %d \n", i));
|
|
377
|
800 mbx_delimit_begin (mbf);
|
|
|
801 if (pop_retr (server, i, mbx_write, mbf) != POP_RETRIEVED)
|
|
|
802 {
|
|
|
803 error (Errmsg, NULL, NULL);
|
|
|
804 close (mbfi);
|
|
|
805 return (1);
|
|
|
806 }
|
|
|
807
|
|
|
808 retrieved_list[i]=1;
|
|
|
809
|
|
|
810 mbx_delimit_end (mbf);
|
|
|
811 fflush (mbf);
|
|
|
812 if (ferror (mbf))
|
|
|
813 {
|
|
|
814 error ("Error in fflush: %s", strerror (errno), NULL);
|
|
|
815 pop_close (server);
|
|
|
816 close (mbfi);
|
|
|
817 return (1);
|
|
|
818 }
|
|
118
|
819 }
|
|
0
|
820 }
|
|
|
821
|
|
118
|
822 /* On AFS, a call to write only modifies the file in the local
|
|
|
823 * workstation's AFS cache. The changes are not written to the server
|
|
|
824 * until a call to fsync or close is made. Users with AFS home
|
|
|
825 * directories have lost mail when over quota because these checks were
|
|
|
826 * not made in previous versions of movemail. */
|
|
|
827
|
|
398
|
828 #ifdef HAVE_FSYNC
|
|
0
|
829 if (fsync (mbfi) < 0)
|
|
|
830 {
|
|
173
|
831 error ("Error in fsync: %s", strerror (errno), NULL);
|
|
118
|
832 return (1);
|
|
0
|
833 }
|
|
118
|
834 #endif
|
|
0
|
835
|
|
|
836 if (close (mbfi) == -1)
|
|
|
837 {
|
|
173
|
838 error ("Error in close: %s", strerror (errno), NULL);
|
|
118
|
839 return (1);
|
|
0
|
840 }
|
|
|
841
|
|
377
|
842 if (!keep_messages)
|
|
0
|
843 {
|
|
377
|
844 for (i = 1; i <= nmsgs; i++)
|
|
118
|
845 {
|
|
377
|
846 if (retrieved_list[i] == 1)
|
|
|
847 {
|
|
398
|
848 VERBOSE(("deleting message %d \n", i));
|
|
377
|
849 if (pop_delete (server, i))
|
|
|
850 {
|
|
|
851 error (pop_error, NULL, NULL);
|
|
|
852 pop_close (server);
|
|
|
853 return (1);
|
|
|
854 }
|
|
|
855 }
|
|
118
|
856 }
|
|
0
|
857 }
|
|
|
858
|
|
377
|
859 VERBOSE(("closing server \n"));
|
|
118
|
860 if (pop_quit (server))
|
|
|
861 {
|
|
173
|
862 error (pop_error, NULL, NULL);
|
|
118
|
863 return (1);
|
|
|
864 }
|
|
|
865
|
|
0
|
866 return (0);
|
|
|
867 }
|
|
|
868
|
|
173
|
869 static int
|
|
398
|
870 pop_retr (popserver server, int msgno, int (*action)(char *, FILE *), FILE *arg)
|
|
0
|
871 {
|
|
118
|
872 char *line;
|
|
|
873 int ret;
|
|
70
|
874
|
|
118
|
875 if (pop_retrieve_first (server, msgno, &line))
|
|
70
|
876 {
|
|
118
|
877 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
878 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
377
|
879 return (POP_ERROR);
|
|
0
|
880 }
|
|
48
|
881
|
|
118
|
882 while (! (ret = pop_retrieve_next (server, &line)))
|
|
70
|
883 {
|
|
118
|
884 if (! line)
|
|
|
885 break;
|
|
0
|
886
|
|
377
|
887 if ((*action)(line, arg) != POP_RETRIEVED)
|
|
118
|
888 {
|
|
|
889 strcpy (Errmsg, strerror (errno));
|
|
|
890 pop_close (server);
|
|
377
|
891 return (POP_ERROR);
|
|
118
|
892 }
|
|
48
|
893 }
|
|
70
|
894
|
|
118
|
895 if (ret)
|
|
70
|
896 {
|
|
118
|
897 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
898 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
377
|
899 return (POP_ERROR);
|
|
|
900 }
|
|
|
901
|
|
|
902 return (POP_RETRIEVED);
|
|
|
903 }
|
|
|
904
|
|
|
905 /* search the top lines of each message looking for a match */
|
|
|
906 static int
|
|
|
907 pop_search_top (popserver server, int msgno, int lines, struct re_pattern_buffer* regexp)
|
|
|
908 {
|
|
|
909 char *line;
|
|
|
910 int ret;
|
|
|
911 int match = POP_DONE;
|
|
|
912
|
|
|
913 if (pop_top_first (server, msgno, lines, &line))
|
|
|
914 {
|
|
|
915 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
916 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
|
917 return (POP_ERROR);
|
|
70
|
918 }
|
|
118
|
919
|
|
377
|
920 while (! (ret = pop_top_next (server, &line)))
|
|
|
921 {
|
|
|
922 if (! line)
|
|
|
923 break;
|
|
|
924
|
|
|
925 /* VERBOSE (("checking %s\n", line));*/
|
|
|
926 if (match != POP_RETRIEVED)
|
|
|
927 {
|
|
|
928 if ((ret = re_match (regexp, line, strlen (line), 0, 0)) == -2 )
|
|
|
929 {
|
|
|
930 strcpy (Errmsg, "error in regular expression");
|
|
|
931 pop_close (server);
|
|
|
932 return (POP_ERROR);
|
|
|
933 }
|
|
|
934 else if (ret >=0)
|
|
|
935 {
|
|
|
936 match = POP_RETRIEVED;
|
|
|
937 }
|
|
|
938 }
|
|
|
939 }
|
|
|
940
|
|
|
941 if (ret)
|
|
|
942 {
|
|
|
943 strncpy (Errmsg, pop_error, sizeof (Errmsg));
|
|
|
944 Errmsg[sizeof (Errmsg)-1] = '\0';
|
|
|
945 return (POP_ERROR);
|
|
|
946 }
|
|
|
947
|
|
|
948 return match;
|
|
0
|
949 }
|
|
|
950
|
|
118
|
951 /* Do this as a macro instead of using strcmp to save on execution time. */
|
|
|
952 #define IS_FROM_LINE(a) ((a[0] == 'F') \
|
|
|
953 && (a[1] == 'r') \
|
|
|
954 && (a[2] == 'o') \
|
|
|
955 && (a[3] == 'm') \
|
|
|
956 && (a[4] == ' '))
|
|
0
|
957
|
|
173
|
958 static int
|
|
|
959 mbx_write (char *line, FILE *mbf)
|
|
70
|
960 {
|
|
118
|
961 if (IS_FROM_LINE (line))
|
|
|
962 {
|
|
|
963 if (fputc ('>', mbf) == EOF)
|
|
377
|
964 return (POP_ERROR);
|
|
118
|
965 }
|
|
|
966 if (fputs (line, mbf) == EOF)
|
|
377
|
967 return (POP_ERROR);
|
|
118
|
968 if (fputc (0x0a, mbf) == EOF)
|
|
377
|
969 return (POP_ERROR);
|
|
|
970 return (POP_RETRIEVED);
|
|
70
|
971 }
|
|
|
972
|
|
173
|
973 static int
|
|
|
974 mbx_delimit_begin (FILE *mbf)
|
|
70
|
975 {
|
|
118
|
976 if (fputs ("\f\n0, unseen,,\n", mbf) == EOF)
|
|
377
|
977 return (POP_ERROR);
|
|
|
978 return (POP_RETRIEVED);
|
|
70
|
979 }
|
|
|
980
|
|
173
|
981 static int
|
|
|
982 mbx_delimit_end (FILE *mbf)
|
|
70
|
983 {
|
|
118
|
984 if (putc ('\037', mbf) == EOF)
|
|
377
|
985 return (POP_ERROR);
|
|
|
986 return (POP_RETRIEVED);
|
|
0
|
987 }
|
|
|
988
|
|
377
|
989 /* Turn a name, which is an ed-style (but Emacs syntax) regular
|
|
|
990 expression, into a real regular expression by compiling it. */
|
|
|
991 static struct re_pattern_buffer*
|
|
380
|
992 compile_regex (char* pattern)
|
|
377
|
993 {
|
|
|
994 char *err;
|
|
|
995 struct re_pattern_buffer *patbuf=0;
|
|
|
996
|
|
|
997 patbuf = (struct re_pattern_buffer*) xmalloc (sizeof (struct re_pattern_buffer));
|
|
|
998 patbuf->translate = NULL;
|
|
|
999 patbuf->fastmap = NULL;
|
|
|
1000 patbuf->buffer = NULL;
|
|
|
1001 patbuf->allocated = 0;
|
|
|
1002
|
|
380
|
1003 err = (char*) re_compile_pattern (pattern, strlen (pattern), patbuf);
|
|
377
|
1004 if (err != NULL)
|
|
|
1005 {
|
|
|
1006 error ("%s while compiling pattern", err, NULL);
|
|
|
1007 return 0;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 return patbuf;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013
|
|
|
1014
|
|
0
|
1015 #endif /* MAIL_USE_POP */
|
|
398
|
1016
|
|
0
|
1017 #ifndef HAVE_STRERROR
|
|
388
|
1018 char *
|
|
173
|
1019 strerror (int errnum)
|
|
0
|
1020 {
|
|
|
1021 extern char *sys_errlist[];
|
|
|
1022 extern int sys_nerr;
|
|
|
1023
|
|
|
1024 if (errnum >= 0 && errnum < sys_nerr)
|
|
|
1025 return sys_errlist[errnum];
|
|
|
1026 return (char *) "Unknown error";
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 #endif /* ! HAVE_STRERROR */
|
