Commit | Line | Data |
---|---|---|
6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
b3d90e46 | 2 | Copyright (C) 1985, 1994, 1999, 2001, 2002, 2003, 2004, |
a5b68355 | 3 | 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
6b3ee98a RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
294981c7 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
518dd722 | 8 | it under the terms of the GNU General Public License as published by |
294981c7 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
518dd722 | 11 | |
6b3ee98a | 12 | GNU Emacs is distributed in the hope that it will be useful, |
518dd722 JB |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
294981c7 GM |
18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
19 | ||
6b3ee98a | 20 | |
a33c19b1 | 21 | #define _XOPEN_SOURCE 500 /* for cuserid */ |
594aa066 PJ |
22 | |
23 | #ifdef HAVE_CONFIG_H | |
4838e624 | 24 | #include <config.h> |
594aa066 | 25 | #endif |
6b3ee98a | 26 | |
e397a017 | 27 | #if defined (BSD_SYSTEM) && !defined (BSD4_1) && !defined (USE_FAKEMAIL) |
6b3ee98a | 28 | /* This program isnot used in BSD, so just avoid loader complaints. */ |
d0dff6e5 | 29 | int |
6b3ee98a RS |
30 | main () |
31 | { | |
0d1841a6 | 32 | return 0; |
6b3ee98a RS |
33 | } |
34 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 35 | #ifdef MSDOS |
d0dff6e5 | 36 | int |
26528bbc RS |
37 | main () |
38 | { | |
0d1841a6 | 39 | return 0; |
26528bbc RS |
40 | } |
41 | #else /* not MSDOS */ | |
6b3ee98a RS |
42 | /* This conditional contains all the rest of the file. */ |
43 | ||
44 | /* These are defined in config in some versions. */ | |
45 | ||
46 | #ifdef static | |
47 | #undef static | |
48 | #endif | |
49 | ||
7c544420 RS |
50 | #ifdef WINDOWSNT |
51 | #include "ntlib.h" | |
52 | #endif | |
53 | ||
6b3ee98a RS |
54 | #include <stdio.h> |
55 | #include <string.h> | |
56 | #include <ctype.h> | |
57 | #include <time.h> | |
58 | #include <pwd.h> | |
7543028e RS |
59 | |
60 | /* This is to declare cuserid. */ | |
61 | #ifdef HAVE_UNISTD_H | |
62 | #include <unistd.h> | |
63 | #endif | |
6b3ee98a RS |
64 | \f |
65 | /* Type definitions */ | |
66 | ||
67 | #define boolean int | |
68 | #define true 1 | |
69 | #define false 0 | |
70 | ||
d65b4235 PE |
71 | #define TM_YEAR_BASE 1900 |
72 | ||
73 | /* Nonzero if TM_YEAR is a struct tm's tm_year value that causes | |
74 | asctime to have well-defined behavior. */ | |
75 | #ifndef TM_YEAR_IN_ASCTIME_RANGE | |
f5565804 | 76 | # define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \ |
d65b4235 | 77 | (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE) |
f5565804 PE |
78 | #endif |
79 | ||
6b3ee98a RS |
80 | /* Various lists */ |
81 | ||
82 | struct line_record | |
83 | { | |
84 | char *string; | |
85 | struct line_record *continuation; | |
86 | }; | |
87 | typedef struct line_record *line_list; | |
88 | ||
89 | struct header_record | |
90 | { | |
91 | line_list text; | |
92 | struct header_record *next; | |
93 | struct header_record *previous; | |
94 | }; | |
95 | typedef struct header_record *header; | |
594aa066 | 96 | |
6b3ee98a RS |
97 | struct stream_record |
98 | { | |
99 | FILE *handle; | |
100 | int (*action)(); | |
101 | struct stream_record *rest_streams; | |
102 | }; | |
103 | typedef struct stream_record *stream_list; | |
104 | ||
105 | /* A `struct linebuffer' is a structure which holds a line of text. | |
106 | * `readline' reads a line from a stream into a linebuffer | |
107 | * and works regardless of the length of the line. | |
108 | */ | |
109 | ||
110 | struct linebuffer | |
111 | { | |
112 | long size; | |
113 | char *buffer; | |
114 | }; | |
115 | ||
116 | struct linebuffer lb; | |
117 | ||
118 | #define new_list() \ | |
119 | ((line_list) xmalloc (sizeof (struct line_record))) | |
120 | #define new_header() \ | |
121 | ((header) xmalloc (sizeof (struct header_record))) | |
122 | #define new_stream() \ | |
123 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
124 | #define alloc_string(nchars) \ | |
125 | ((char *) xmalloc ((nchars) + 1)) | |
126 | \f | |
127 | /* Global declarations */ | |
128 | ||
129 | #define BUFLEN 1024 | |
130 | #define KEYWORD_SIZE 256 | |
131 | #define FROM_PREFIX "From" | |
132 | #define MY_NAME "fakemail" | |
133 | #define NIL ((line_list) NULL) | |
134 | #define INITIAL_LINE_SIZE 200 | |
135 | ||
45c1955d DN |
136 | #ifndef MAIL_PROGRAM_NAME |
137 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
138 | #endif | |
139 | ||
6b3ee98a RS |
140 | static char *my_name; |
141 | static char *the_date; | |
142 | static char *the_user; | |
143 | static line_list file_preface; | |
144 | static stream_list the_streams; | |
145 | static boolean no_problems = true; | |
146 | ||
147 | extern FILE *popen (); | |
148 | extern int fclose (), pclose (); | |
6b3ee98a RS |
149 | |
150 | #ifdef CURRENT_USER | |
151 | extern struct passwd *getpwuid (); | |
152 | extern unsigned short geteuid (); | |
153 | static struct passwd *my_entry; | |
154 | #define cuserid(s) \ | |
155 | (my_entry = getpwuid (((int) geteuid ())), \ | |
156 | my_entry->pw_name) | |
157 | #endif | |
158 | \f | |
159 | /* Utilities */ | |
160 | ||
161 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
162 | ||
163 | static void | |
164 | error (s1, s2) | |
165 | char *s1, *s2; | |
166 | { | |
167 | printf ("%s: ", my_name); | |
168 | printf (s1, s2); | |
169 | printf ("\n"); | |
170 | no_problems = false; | |
171 | } | |
172 | ||
173 | /* Print error message and exit. */ | |
174 | ||
175 | static void | |
5a84ed33 AS |
176 | fatal (s1) |
177 | char *s1; | |
6b3ee98a | 178 | { |
5a84ed33 | 179 | error ("%s", s1); |
65396510 | 180 | exit (EXIT_FAILURE); |
6b3ee98a RS |
181 | } |
182 | ||
183 | /* Like malloc but get fatal error if memory is exhausted. */ | |
184 | ||
65119039 | 185 | static long * |
6b3ee98a RS |
186 | xmalloc (size) |
187 | int size; | |
188 | { | |
65119039 RS |
189 | long *result = (long *) malloc (((unsigned) size)); |
190 | if (result == ((long *) NULL)) | |
5a84ed33 | 191 | fatal ("virtual memory exhausted"); |
6b3ee98a RS |
192 | return result; |
193 | } | |
194 | ||
65119039 | 195 | static long * |
6b3ee98a | 196 | xrealloc (ptr, size) |
65119039 | 197 | long *ptr; |
6b3ee98a RS |
198 | int size; |
199 | { | |
65119039 | 200 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 201 | if (result == ((long *) NULL)) |
6b3ee98a RS |
202 | fatal ("virtual memory exhausted"); |
203 | return result; | |
204 | } | |
205 | \f | |
206 | /* Initialize a linebuffer for use */ | |
207 | ||
208 | void | |
209 | init_linebuffer (linebuffer) | |
210 | struct linebuffer *linebuffer; | |
211 | { | |
212 | linebuffer->size = INITIAL_LINE_SIZE; | |
213 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
214 | } | |
215 | ||
216 | /* Read a line of text from `stream' into `linebuffer'. | |
594aa066 | 217 | Return the length of the line. */ |
6b3ee98a RS |
218 | |
219 | long | |
220 | readline (linebuffer, stream) | |
221 | struct linebuffer *linebuffer; | |
222 | FILE *stream; | |
223 | { | |
224 | char *buffer = linebuffer->buffer; | |
225 | char *p = linebuffer->buffer; | |
226 | char *end = p + linebuffer->size; | |
227 | ||
228 | while (true) | |
229 | { | |
230 | int c = getc (stream); | |
231 | if (p == end) | |
232 | { | |
233 | linebuffer->size *= 2; | |
26df3bb0 | 234 | buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size)); |
f3309b68 | 235 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 236 | end = buffer + linebuffer->size; |
6b3ee98a RS |
237 | linebuffer->buffer = buffer; |
238 | } | |
239 | if (c < 0 || c == '\n') | |
240 | { | |
241 | *p = 0; | |
242 | break; | |
243 | } | |
244 | *p++ = c; | |
245 | } | |
246 | ||
247 | return p - buffer; | |
248 | } | |
249 | \f | |
3d23b985 RS |
250 | /* Extract a colon-terminated keyword from the string FIELD. |
251 | Return that keyword as a string stored in a static buffer. | |
252 | Store the address of the rest of the string into *REST. | |
253 | ||
254 | If there is no keyword, return NULL and don't alter *REST. */ | |
255 | ||
6b3ee98a RS |
256 | char * |
257 | get_keyword (field, rest) | |
258 | register char *field; | |
259 | char **rest; | |
260 | { | |
261 | static char keyword[KEYWORD_SIZE]; | |
262 | register char *ptr; | |
859cbb40 | 263 | register int c; |
6b3ee98a RS |
264 | |
265 | ptr = &keyword[0]; | |
859cbb40 | 266 | c = (unsigned char) *field++; |
3d23b985 | 267 | if (isspace (c) || c == ':') |
6b3ee98a | 268 | return ((char *) NULL); |
3d23b985 | 269 | *ptr++ = (islower (c) ? toupper (c) : c); |
859cbb40 | 270 | while (((c = (unsigned char) *field++) != ':') && ! isspace (c)) |
3d23b985 | 271 | *ptr++ = (islower (c) ? toupper (c) : c); |
6b3ee98a | 272 | *ptr++ = '\0'; |
3d23b985 | 273 | while (isspace (c)) |
859cbb40 | 274 | c = (unsigned char) *field++; |
3d23b985 RS |
275 | if (c != ':') |
276 | return ((char *) NULL); | |
6b3ee98a RS |
277 | *rest = field; |
278 | return &keyword[0]; | |
279 | } | |
280 | ||
3d23b985 RS |
281 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
282 | ||
6b3ee98a RS |
283 | boolean |
284 | has_keyword (field) | |
285 | char *field; | |
286 | { | |
287 | char *ignored; | |
288 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
289 | } | |
290 | ||
3d23b985 RS |
291 | /* Store the string FIELD, followed by any lines in THE_LIST, |
292 | into the buffer WHERE. | |
293 | Concatenate lines, putting just a space between them. | |
294 | Delete everything contained in parentheses. | |
295 | When a recipient name contains <...>, we discard | |
296 | everything except what is inside the <...>. | |
297 | ||
298 | We don't pay attention to overflowing WHERE; | |
299 | the caller has to make it big enough. */ | |
300 | ||
6b3ee98a RS |
301 | char * |
302 | add_field (the_list, field, where) | |
303 | line_list the_list; | |
304 | register char *field, *where; | |
305 | { | |
306 | register char c; | |
307 | while (true) | |
308 | { | |
3d23b985 RS |
309 | char *this_recipient_where; |
310 | int in_quotes = 0; | |
311 | ||
6b3ee98a | 312 | *where++ = ' '; |
3d23b985 RS |
313 | this_recipient_where = where; |
314 | ||
6b3ee98a RS |
315 | while ((c = *field++) != '\0') |
316 | { | |
3d23b985 RS |
317 | if (c == '\\') |
318 | *where++ = c; | |
319 | else if (c == '"') | |
320 | { | |
321 | in_quotes = ! in_quotes; | |
322 | *where++ = c; | |
323 | } | |
324 | else if (in_quotes) | |
325 | *where++ = c; | |
326 | else if (c == '(') | |
6b3ee98a RS |
327 | { |
328 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
329 | if (! (*field++)) break; /* no close */ |
330 | continue; | |
6b3ee98a | 331 | } |
3d23b985 RS |
332 | else if (c == ',') |
333 | { | |
334 | *where++ = ' '; | |
335 | /* When we get to the end of one recipient, | |
336 | don't discard it if the next one has <...>. */ | |
337 | this_recipient_where = where; | |
338 | } | |
339 | else if (c == '<') | |
340 | /* Discard everything we got before the `<'. */ | |
341 | where = this_recipient_where; | |
342 | else if (c == '>') | |
343 | /* Discard the rest of this name that follows the `>'. */ | |
344 | { | |
345 | while (*field && *field != ',') ++field; | |
346 | if (! (*field++)) break; /* no comma */ | |
347 | continue; | |
348 | } | |
349 | else | |
350 | *where++ = c; | |
6b3ee98a RS |
351 | } |
352 | if (the_list == NIL) break; | |
353 | field = the_list->string; | |
354 | the_list = the_list->continuation; | |
355 | } | |
356 | return where; | |
357 | } | |
358 | \f | |
359 | line_list | |
360 | make_file_preface () | |
361 | { | |
362 | char *the_string, *temp; | |
363 | long idiotic_interface; | |
f5565804 | 364 | struct tm *tm; |
6b3ee98a RS |
365 | long prefix_length; |
366 | long user_length; | |
367 | long date_length; | |
368 | line_list result; | |
369 | ||
370 | prefix_length = strlen (FROM_PREFIX); | |
371 | time (&idiotic_interface); | |
f5565804 PE |
372 | /* Convert to a string, checking for out-of-range time stamps. |
373 | Don't use 'ctime', as that might dump core if the hardware clock | |
374 | is set to a bizarre value. */ | |
375 | tm = localtime (&idiotic_interface); | |
d65b4235 PE |
376 | if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year) |
377 | && (the_date = asctime (tm)))) | |
5a84ed33 | 378 | fatal ("current time is out of range"); |
6b3ee98a RS |
379 | /* the_date has an unwanted newline at the end */ |
380 | date_length = strlen (the_date) - 1; | |
381 | the_date[date_length] = '\0'; | |
382 | temp = cuserid ((char *) NULL); | |
383 | user_length = strlen (temp); | |
384 | the_user = alloc_string (user_length + 1); | |
385 | strcpy (the_user, temp); | |
7543028e RS |
386 | the_string = alloc_string (3 + prefix_length |
387 | + user_length | |
388 | + date_length); | |
6b3ee98a RS |
389 | temp = the_string; |
390 | strcpy (temp, FROM_PREFIX); | |
391 | temp = &temp[prefix_length]; | |
392 | *temp++ = ' '; | |
393 | strcpy (temp, the_user); | |
394 | temp = &temp[user_length]; | |
395 | *temp++ = ' '; | |
396 | strcpy (temp, the_date); | |
397 | result = new_list (); | |
398 | result->string = the_string; | |
399 | result->continuation = ((line_list) NULL); | |
400 | return result; | |
401 | } | |
402 | ||
403 | void | |
404 | write_line_list (the_list, the_stream) | |
405 | register line_list the_list; | |
406 | FILE *the_stream; | |
407 | { | |
408 | for ( ; | |
409 | the_list != ((line_list) NULL) ; | |
410 | the_list = the_list->continuation) | |
411 | { | |
412 | fputs (the_list->string, the_stream); | |
413 | putc ('\n', the_stream); | |
414 | } | |
415 | return; | |
416 | } | |
417 | \f | |
418 | int | |
419 | close_the_streams () | |
420 | { | |
421 | register stream_list rem; | |
422 | for (rem = the_streams; | |
423 | rem != ((stream_list) NULL); | |
424 | rem = rem->rest_streams) | |
425 | no_problems = (no_problems && | |
426 | ((*rem->action) (rem->handle) == 0)); | |
427 | the_streams = ((stream_list) NULL); | |
65396510 | 428 | return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE); |
6b3ee98a RS |
429 | } |
430 | ||
431 | void | |
432 | add_a_stream (the_stream, closing_action) | |
433 | FILE *the_stream; | |
434 | int (*closing_action)(); | |
435 | { | |
436 | stream_list old = the_streams; | |
437 | the_streams = new_stream (); | |
438 | the_streams->handle = the_stream; | |
439 | the_streams->action = closing_action; | |
440 | the_streams->rest_streams = old; | |
441 | return; | |
442 | } | |
443 | ||
444 | int | |
445 | my_fclose (the_file) | |
446 | FILE *the_file; | |
447 | { | |
448 | putc ('\n', the_file); | |
449 | fflush (the_file); | |
450 | return fclose (the_file); | |
451 | } | |
452 | ||
453 | boolean | |
454 | open_a_file (name) | |
455 | char *name; | |
456 | { | |
457 | FILE *the_stream = fopen (name, "a"); | |
458 | if (the_stream != ((FILE *) NULL)) | |
459 | { | |
460 | add_a_stream (the_stream, my_fclose); | |
461 | if (the_user == ((char *) NULL)) | |
462 | file_preface = make_file_preface (); | |
463 | write_line_list (file_preface, the_stream); | |
464 | return true; | |
465 | } | |
466 | return false; | |
467 | } | |
468 | ||
469 | void | |
470 | put_string (s) | |
471 | char *s; | |
472 | { | |
473 | register stream_list rem; | |
474 | for (rem = the_streams; | |
475 | rem != ((stream_list) NULL); | |
476 | rem = rem->rest_streams) | |
477 | fputs (s, rem->handle); | |
478 | return; | |
479 | } | |
480 | ||
481 | void | |
a492a5b9 RS |
482 | put_line (string) |
483 | char *string; | |
6b3ee98a RS |
484 | { |
485 | register stream_list rem; | |
486 | for (rem = the_streams; | |
487 | rem != ((stream_list) NULL); | |
488 | rem = rem->rest_streams) | |
489 | { | |
a492a5b9 RS |
490 | char *s = string; |
491 | int column = 0; | |
492 | ||
493 | /* Divide STRING into lines. */ | |
494 | while (*s != 0) | |
495 | { | |
496 | char *breakpos; | |
497 | ||
fbffe7d9 | 498 | /* Find the last char that fits. */ |
a492a5b9 RS |
499 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
500 | { | |
501 | if (*breakpos == '\t') | |
502 | column += 8; | |
503 | else | |
504 | column++; | |
505 | } | |
fbffe7d9 RS |
506 | /* If we didn't reach end of line, break the line. */ |
507 | if (*breakpos) | |
a492a5b9 | 508 | { |
fbffe7d9 RS |
509 | /* Back up to just after the last comma that fits. */ |
510 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
511 | ||
512 | if (breakpos == s) | |
513 | { | |
514 | /* If no comma fits, move past the first address anyway. */ | |
515 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
516 | if (*breakpos != 0) | |
517 | /* Include the comma after it. */ | |
518 | ++breakpos; | |
519 | } | |
a492a5b9 RS |
520 | } |
521 | /* Output that much, then break the line. */ | |
522 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
523 | column = 8; |
524 | ||
525 | /* Skip whitespace and prepare to print more addresses. */ | |
526 | s = breakpos; | |
527 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
528 | if (*s != 0) |
529 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 530 | } |
6b3ee98a RS |
531 | putc ('\n', rem->handle); |
532 | } | |
533 | return; | |
534 | } | |
535 | \f | |
536 | #define mail_error error | |
537 | ||
3d23b985 RS |
538 | /* Handle an FCC field. FIELD is the text of the first line (after |
539 | the header name), and THE_LIST holds the continuation lines if any. | |
540 | Call open_a_file for each file. */ | |
541 | ||
6b3ee98a RS |
542 | void |
543 | setup_files (the_list, field) | |
544 | register line_list the_list; | |
545 | register char *field; | |
546 | { | |
547 | register char *start; | |
548 | register char c; | |
549 | while (true) | |
550 | { | |
3d23b985 RS |
551 | while (((c = *field) != '\0') |
552 | && (c == ' ' | |
553 | || c == '\t' | |
554 | || c == ',')) | |
6b3ee98a RS |
555 | field += 1; |
556 | if (c != '\0') | |
557 | { | |
558 | start = field; | |
3d23b985 RS |
559 | while (((c = *field) != '\0') |
560 | && c != ' ' | |
561 | && c != '\t' | |
562 | && c != ',') | |
6b3ee98a RS |
563 | field += 1; |
564 | *field = '\0'; | |
565 | if (!open_a_file (start)) | |
566 | mail_error ("Could not open file %s", start); | |
567 | *field = c; | |
568 | if (c != '\0') continue; | |
569 | } | |
3d23b985 RS |
570 | if (the_list == ((line_list) NULL)) |
571 | return; | |
6b3ee98a RS |
572 | field = the_list->string; |
573 | the_list = the_list->continuation; | |
574 | } | |
575 | } | |
576 | \f | |
3d23b985 RS |
577 | /* Compute the total size of all recipient names stored in THE_HEADER. |
578 | The result says how big to make the buffer to pass to parse_header. */ | |
579 | ||
6b3ee98a RS |
580 | int |
581 | args_size (the_header) | |
582 | header the_header; | |
583 | { | |
584 | register header old = the_header; | |
585 | register line_list rem; | |
586 | register int size = 0; | |
587 | do | |
588 | { | |
589 | char *field; | |
590 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
591 | if ((strcmp (keyword, "TO") == 0) |
592 | || (strcmp (keyword, "CC") == 0) | |
593 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
594 | { |
595 | size += 1 + strlen (field); | |
596 | for (rem = the_header->text->continuation; | |
597 | rem != NIL; | |
598 | rem = rem->continuation) | |
599 | size += 1 + strlen (rem->string); | |
600 | } | |
601 | the_header = the_header->next; | |
602 | } while (the_header != old); | |
603 | return size; | |
604 | } | |
605 | ||
3d23b985 RS |
606 | /* Scan the header described by the lists THE_HEADER, |
607 | and put all recipient names into the buffer WHERE. | |
608 | Precede each recipient name with a space. | |
609 | ||
610 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
611 | ||
cb58ebb0 | 612 | void |
6b3ee98a RS |
613 | parse_header (the_header, where) |
614 | header the_header; | |
615 | register char *where; | |
616 | { | |
617 | register header old = the_header; | |
618 | do | |
619 | { | |
620 | char *field; | |
621 | register char *keyword = get_keyword (the_header->text->string, &field); | |
622 | if (strcmp (keyword, "TO") == 0) | |
623 | where = add_field (the_header->text->continuation, field, where); | |
624 | else if (strcmp (keyword, "CC") == 0) | |
625 | where = add_field (the_header->text->continuation, field, where); | |
626 | else if (strcmp (keyword, "BCC") == 0) | |
627 | { | |
628 | where = add_field (the_header->text->continuation, field, where); | |
629 | the_header->previous->next = the_header->next; | |
630 | the_header->next->previous = the_header->previous; | |
631 | } | |
632 | else if (strcmp (keyword, "FCC") == 0) | |
633 | setup_files (the_header->text->continuation, field); | |
634 | the_header = the_header->next; | |
635 | } while (the_header != old); | |
636 | *where = '\0'; | |
637 | return; | |
638 | } | |
594aa066 | 639 | \f |
3d23b985 RS |
640 | /* Read lines from the input until we get a blank line. |
641 | Create a list of `header' objects, one for each header field, | |
642 | each of which points to a list of `line_list' objects, | |
643 | one for each line in that field. | |
644 | Continuation lines are grouped in the headers they continue. */ | |
594aa066 | 645 | |
6b3ee98a RS |
646 | header |
647 | read_header () | |
648 | { | |
649 | register header the_header = ((header) NULL); | |
650 | register line_list *next_line = ((line_list *) NULL); | |
651 | ||
652 | init_linebuffer (&lb); | |
653 | ||
654 | do | |
655 | { | |
656 | long length; | |
657 | register char *line; | |
658 | ||
659 | readline (&lb, stdin); | |
660 | line = lb.buffer; | |
661 | length = strlen (line); | |
662 | if (length == 0) break; | |
663 | ||
664 | if (has_keyword (line)) | |
665 | { | |
666 | register header old = the_header; | |
667 | the_header = new_header (); | |
668 | if (old == ((header) NULL)) | |
669 | { | |
670 | the_header->next = the_header; | |
671 | the_header->previous = the_header; | |
672 | } | |
673 | else | |
674 | { | |
675 | the_header->previous = old; | |
676 | the_header->next = old->next; | |
677 | old->next = the_header; | |
678 | } | |
679 | next_line = &(the_header->text); | |
680 | } | |
681 | ||
682 | if (next_line == ((line_list *) NULL)) | |
683 | { | |
684 | /* Not a valid header */ | |
65396510 | 685 | exit (EXIT_FAILURE); |
6b3ee98a RS |
686 | } |
687 | *next_line = new_list (); | |
688 | (*next_line)->string = alloc_string (length); | |
689 | strcpy (((*next_line)->string), line); | |
690 | next_line = &((*next_line)->continuation); | |
691 | *next_line = NIL; | |
692 | ||
693 | } while (true); | |
694 | ||
2ef88a94 RS |
695 | if (! the_header) |
696 | fatal ("input message has no header"); | |
6b3ee98a RS |
697 | return the_header->next; |
698 | } | |
699 | \f | |
700 | void | |
701 | write_header (the_header) | |
702 | header the_header; | |
703 | { | |
704 | register header old = the_header; | |
705 | do | |
706 | { | |
707 | register line_list the_list; | |
708 | for (the_list = the_header->text; | |
709 | the_list != NIL; | |
710 | the_list = the_list->continuation) | |
711 | put_line (the_list->string); | |
712 | the_header = the_header->next; | |
713 | } while (the_header != old); | |
714 | put_line (""); | |
715 | return; | |
716 | } | |
717 | \f | |
d0dff6e5 | 718 | int |
6b3ee98a RS |
719 | main (argc, argv) |
720 | int argc; | |
721 | char **argv; | |
722 | { | |
723 | char *command_line; | |
724 | header the_header; | |
725 | long name_length; | |
726 | char *mail_program_name; | |
727 | char buf[BUFLEN + 1]; | |
728 | register int size; | |
729 | FILE *the_pipe; | |
730 | ||
731 | extern char *getenv (); | |
732 | ||
733 | mail_program_name = getenv ("FAKEMAILER"); | |
734 | if (!(mail_program_name && *mail_program_name)) | |
45c1955d | 735 | mail_program_name = MAIL_PROGRAM_NAME; |
6b3ee98a RS |
736 | name_length = strlen (mail_program_name); |
737 | ||
738 | my_name = MY_NAME; | |
739 | the_streams = ((stream_list) NULL); | |
740 | the_date = ((char *) NULL); | |
741 | the_user = ((char *) NULL); | |
742 | ||
743 | the_header = read_header (); | |
744 | command_line = alloc_string (name_length + args_size (the_header)); | |
745 | strcpy (command_line, mail_program_name); | |
746 | parse_header (the_header, &command_line[name_length]); | |
594aa066 | 747 | |
6b3ee98a RS |
748 | the_pipe = popen (command_line, "w"); |
749 | if (the_pipe == ((FILE *) NULL)) | |
750 | fatal ("cannot open pipe to real mailer"); | |
751 | ||
752 | add_a_stream (the_pipe, pclose); | |
753 | ||
754 | write_header (the_header); | |
755 | ||
756 | /* Dump the message itself */ | |
757 | ||
758 | while (!feof (stdin)) | |
759 | { | |
760 | size = fread (buf, 1, BUFLEN, stdin); | |
761 | buf[size] = '\0'; | |
762 | put_string (buf); | |
763 | } | |
764 | ||
765 | exit (close_the_streams ()); | |
766 | } | |
767 | ||
26528bbc | 768 | #endif /* not MSDOS */ |
6b3ee98a | 769 | #endif /* not BSD 4.2 (or newer) */ |
ab5796a9 MB |
770 | |
771 | /* arch-tag: acb0afa6-315a-4c5b-b9e3-def5725c8783 | |
772 | (do not change this comment) */ | |
65396510 TTN |
773 | |
774 | /* fakemail.c ends here */ |