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