Commit | Line | Data |
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6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
b3d90e46 | 2 | Copyright (C) 1985, 1994, 1999, 2001, 2002, 2003, 2004, |
f5d0ac07 | 3 | 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
6b3ee98a | 4 | |
c3fba29d GM |
5 | Author: Bill Rozas <jinx@martigny.ai.mit.edu> |
6 | (according to ack.texi) | |
7 | ||
6b3ee98a RS |
8 | This file is part of GNU Emacs. |
9 | ||
294981c7 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
518dd722 | 11 | it under the terms of the GNU General Public License as published by |
294981c7 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
518dd722 | 14 | |
6b3ee98a | 15 | GNU Emacs is distributed in the hope that it will be useful, |
518dd722 JB |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
294981c7 GM |
21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
22 | ||
6b3ee98a | 23 | |
a33c19b1 | 24 | #define _XOPEN_SOURCE 500 /* for cuserid */ |
594aa066 PJ |
25 | |
26 | #ifdef HAVE_CONFIG_H | |
4838e624 | 27 | #include <config.h> |
594aa066 | 28 | #endif |
6b3ee98a | 29 | |
f2a77c3a | 30 | #if defined (BSD_SYSTEM) && !defined (USE_FAKEMAIL) |
6b3ee98a | 31 | /* This program isnot used in BSD, so just avoid loader complaints. */ |
d0dff6e5 | 32 | int |
6b3ee98a RS |
33 | main () |
34 | { | |
0d1841a6 | 35 | return 0; |
6b3ee98a RS |
36 | } |
37 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 38 | #ifdef MSDOS |
d0dff6e5 | 39 | int |
26528bbc RS |
40 | main () |
41 | { | |
0d1841a6 | 42 | return 0; |
26528bbc RS |
43 | } |
44 | #else /* not MSDOS */ | |
6b3ee98a RS |
45 | /* This conditional contains all the rest of the file. */ |
46 | ||
47 | /* These are defined in config in some versions. */ | |
48 | ||
49 | #ifdef static | |
50 | #undef static | |
51 | #endif | |
52 | ||
7c544420 RS |
53 | #ifdef WINDOWSNT |
54 | #include "ntlib.h" | |
55 | #endif | |
56 | ||
6b3ee98a RS |
57 | #include <stdio.h> |
58 | #include <string.h> | |
59 | #include <ctype.h> | |
60 | #include <time.h> | |
61 | #include <pwd.h> | |
7543028e RS |
62 | |
63 | /* This is to declare cuserid. */ | |
64 | #ifdef HAVE_UNISTD_H | |
65 | #include <unistd.h> | |
66 | #endif | |
6b3ee98a RS |
67 | \f |
68 | /* Type definitions */ | |
69 | ||
70 | #define boolean int | |
71 | #define true 1 | |
72 | #define false 0 | |
73 | ||
d65b4235 PE |
74 | #define TM_YEAR_BASE 1900 |
75 | ||
76 | /* Nonzero if TM_YEAR is a struct tm's tm_year value that causes | |
77 | asctime to have well-defined behavior. */ | |
78 | #ifndef TM_YEAR_IN_ASCTIME_RANGE | |
f5565804 | 79 | # define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \ |
d65b4235 | 80 | (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE) |
f5565804 PE |
81 | #endif |
82 | ||
6b3ee98a RS |
83 | /* Various lists */ |
84 | ||
85 | struct line_record | |
86 | { | |
87 | char *string; | |
88 | struct line_record *continuation; | |
89 | }; | |
90 | typedef struct line_record *line_list; | |
91 | ||
92 | struct header_record | |
93 | { | |
94 | line_list text; | |
95 | struct header_record *next; | |
96 | struct header_record *previous; | |
97 | }; | |
98 | typedef struct header_record *header; | |
594aa066 | 99 | |
6b3ee98a RS |
100 | struct stream_record |
101 | { | |
102 | FILE *handle; | |
103 | int (*action)(); | |
104 | struct stream_record *rest_streams; | |
105 | }; | |
106 | typedef struct stream_record *stream_list; | |
107 | ||
108 | /* A `struct linebuffer' is a structure which holds a line of text. | |
109 | * `readline' reads a line from a stream into a linebuffer | |
110 | * and works regardless of the length of the line. | |
111 | */ | |
112 | ||
113 | struct linebuffer | |
114 | { | |
115 | long size; | |
116 | char *buffer; | |
117 | }; | |
118 | ||
119 | struct linebuffer lb; | |
120 | ||
121 | #define new_list() \ | |
122 | ((line_list) xmalloc (sizeof (struct line_record))) | |
123 | #define new_header() \ | |
124 | ((header) xmalloc (sizeof (struct header_record))) | |
125 | #define new_stream() \ | |
126 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
127 | #define alloc_string(nchars) \ | |
128 | ((char *) xmalloc ((nchars) + 1)) | |
129 | \f | |
130 | /* Global declarations */ | |
131 | ||
132 | #define BUFLEN 1024 | |
133 | #define KEYWORD_SIZE 256 | |
134 | #define FROM_PREFIX "From" | |
135 | #define MY_NAME "fakemail" | |
136 | #define NIL ((line_list) NULL) | |
137 | #define INITIAL_LINE_SIZE 200 | |
138 | ||
45c1955d DN |
139 | #ifndef MAIL_PROGRAM_NAME |
140 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
141 | #endif | |
142 | ||
6b3ee98a RS |
143 | static char *my_name; |
144 | static char *the_date; | |
145 | static char *the_user; | |
146 | static line_list file_preface; | |
147 | static stream_list the_streams; | |
148 | static boolean no_problems = true; | |
149 | ||
150 | extern FILE *popen (); | |
151 | extern int fclose (), pclose (); | |
6b3ee98a RS |
152 | |
153 | #ifdef CURRENT_USER | |
154 | extern struct passwd *getpwuid (); | |
155 | extern unsigned short geteuid (); | |
156 | static struct passwd *my_entry; | |
157 | #define cuserid(s) \ | |
158 | (my_entry = getpwuid (((int) geteuid ())), \ | |
159 | my_entry->pw_name) | |
160 | #endif | |
161 | \f | |
162 | /* Utilities */ | |
163 | ||
164 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
165 | ||
166 | static void | |
167 | error (s1, s2) | |
168 | char *s1, *s2; | |
169 | { | |
170 | printf ("%s: ", my_name); | |
171 | printf (s1, s2); | |
172 | printf ("\n"); | |
173 | no_problems = false; | |
174 | } | |
175 | ||
176 | /* Print error message and exit. */ | |
177 | ||
178 | static void | |
5a84ed33 AS |
179 | fatal (s1) |
180 | char *s1; | |
6b3ee98a | 181 | { |
5a84ed33 | 182 | error ("%s", s1); |
65396510 | 183 | exit (EXIT_FAILURE); |
6b3ee98a RS |
184 | } |
185 | ||
186 | /* Like malloc but get fatal error if memory is exhausted. */ | |
187 | ||
65119039 | 188 | static long * |
6b3ee98a RS |
189 | xmalloc (size) |
190 | int size; | |
191 | { | |
65119039 RS |
192 | long *result = (long *) malloc (((unsigned) size)); |
193 | if (result == ((long *) NULL)) | |
5a84ed33 | 194 | fatal ("virtual memory exhausted"); |
6b3ee98a RS |
195 | return result; |
196 | } | |
197 | ||
65119039 | 198 | static long * |
6b3ee98a | 199 | xrealloc (ptr, size) |
65119039 | 200 | long *ptr; |
6b3ee98a RS |
201 | int size; |
202 | { | |
65119039 | 203 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 204 | if (result == ((long *) NULL)) |
6b3ee98a RS |
205 | fatal ("virtual memory exhausted"); |
206 | return result; | |
207 | } | |
208 | \f | |
209 | /* Initialize a linebuffer for use */ | |
210 | ||
211 | void | |
212 | init_linebuffer (linebuffer) | |
213 | struct linebuffer *linebuffer; | |
214 | { | |
215 | linebuffer->size = INITIAL_LINE_SIZE; | |
216 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
217 | } | |
218 | ||
219 | /* Read a line of text from `stream' into `linebuffer'. | |
594aa066 | 220 | Return the length of the line. */ |
6b3ee98a RS |
221 | |
222 | long | |
223 | readline (linebuffer, stream) | |
224 | struct linebuffer *linebuffer; | |
225 | FILE *stream; | |
226 | { | |
227 | char *buffer = linebuffer->buffer; | |
228 | char *p = linebuffer->buffer; | |
229 | char *end = p + linebuffer->size; | |
230 | ||
231 | while (true) | |
232 | { | |
233 | int c = getc (stream); | |
234 | if (p == end) | |
235 | { | |
236 | linebuffer->size *= 2; | |
26df3bb0 | 237 | buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size)); |
f3309b68 | 238 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 239 | end = buffer + linebuffer->size; |
6b3ee98a RS |
240 | linebuffer->buffer = buffer; |
241 | } | |
242 | if (c < 0 || c == '\n') | |
243 | { | |
244 | *p = 0; | |
245 | break; | |
246 | } | |
247 | *p++ = c; | |
248 | } | |
249 | ||
250 | return p - buffer; | |
251 | } | |
252 | \f | |
3d23b985 RS |
253 | /* Extract a colon-terminated keyword from the string FIELD. |
254 | Return that keyword as a string stored in a static buffer. | |
255 | Store the address of the rest of the string into *REST. | |
256 | ||
257 | If there is no keyword, return NULL and don't alter *REST. */ | |
258 | ||
6b3ee98a RS |
259 | char * |
260 | get_keyword (field, rest) | |
261 | register char *field; | |
262 | char **rest; | |
263 | { | |
264 | static char keyword[KEYWORD_SIZE]; | |
265 | register char *ptr; | |
859cbb40 | 266 | register int c; |
6b3ee98a RS |
267 | |
268 | ptr = &keyword[0]; | |
859cbb40 | 269 | c = (unsigned char) *field++; |
3d23b985 | 270 | if (isspace (c) || c == ':') |
6b3ee98a | 271 | return ((char *) NULL); |
3d23b985 | 272 | *ptr++ = (islower (c) ? toupper (c) : c); |
859cbb40 | 273 | while (((c = (unsigned char) *field++) != ':') && ! isspace (c)) |
3d23b985 | 274 | *ptr++ = (islower (c) ? toupper (c) : c); |
6b3ee98a | 275 | *ptr++ = '\0'; |
3d23b985 | 276 | while (isspace (c)) |
859cbb40 | 277 | c = (unsigned char) *field++; |
3d23b985 RS |
278 | if (c != ':') |
279 | return ((char *) NULL); | |
6b3ee98a RS |
280 | *rest = field; |
281 | return &keyword[0]; | |
282 | } | |
283 | ||
3d23b985 RS |
284 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
285 | ||
6b3ee98a RS |
286 | boolean |
287 | has_keyword (field) | |
288 | char *field; | |
289 | { | |
290 | char *ignored; | |
291 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
292 | } | |
293 | ||
3d23b985 RS |
294 | /* Store the string FIELD, followed by any lines in THE_LIST, |
295 | into the buffer WHERE. | |
296 | Concatenate lines, putting just a space between them. | |
297 | Delete everything contained in parentheses. | |
298 | When a recipient name contains <...>, we discard | |
299 | everything except what is inside the <...>. | |
300 | ||
301 | We don't pay attention to overflowing WHERE; | |
302 | the caller has to make it big enough. */ | |
303 | ||
6b3ee98a RS |
304 | char * |
305 | add_field (the_list, field, where) | |
306 | line_list the_list; | |
307 | register char *field, *where; | |
308 | { | |
309 | register char c; | |
310 | while (true) | |
311 | { | |
3d23b985 RS |
312 | char *this_recipient_where; |
313 | int in_quotes = 0; | |
314 | ||
6b3ee98a | 315 | *where++ = ' '; |
3d23b985 RS |
316 | this_recipient_where = where; |
317 | ||
6b3ee98a RS |
318 | while ((c = *field++) != '\0') |
319 | { | |
3d23b985 RS |
320 | if (c == '\\') |
321 | *where++ = c; | |
322 | else if (c == '"') | |
323 | { | |
324 | in_quotes = ! in_quotes; | |
325 | *where++ = c; | |
326 | } | |
327 | else if (in_quotes) | |
328 | *where++ = c; | |
329 | else if (c == '(') | |
6b3ee98a RS |
330 | { |
331 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
332 | if (! (*field++)) break; /* no close */ |
333 | continue; | |
6b3ee98a | 334 | } |
3d23b985 RS |
335 | else if (c == ',') |
336 | { | |
337 | *where++ = ' '; | |
338 | /* When we get to the end of one recipient, | |
339 | don't discard it if the next one has <...>. */ | |
340 | this_recipient_where = where; | |
341 | } | |
342 | else if (c == '<') | |
343 | /* Discard everything we got before the `<'. */ | |
344 | where = this_recipient_where; | |
345 | else if (c == '>') | |
346 | /* Discard the rest of this name that follows the `>'. */ | |
347 | { | |
348 | while (*field && *field != ',') ++field; | |
349 | if (! (*field++)) break; /* no comma */ | |
350 | continue; | |
351 | } | |
352 | else | |
353 | *where++ = c; | |
6b3ee98a RS |
354 | } |
355 | if (the_list == NIL) break; | |
356 | field = the_list->string; | |
357 | the_list = the_list->continuation; | |
358 | } | |
359 | return where; | |
360 | } | |
361 | \f | |
362 | line_list | |
363 | make_file_preface () | |
364 | { | |
365 | char *the_string, *temp; | |
366 | long idiotic_interface; | |
f5565804 | 367 | struct tm *tm; |
6b3ee98a RS |
368 | long prefix_length; |
369 | long user_length; | |
370 | long date_length; | |
371 | line_list result; | |
372 | ||
373 | prefix_length = strlen (FROM_PREFIX); | |
374 | time (&idiotic_interface); | |
f5565804 PE |
375 | /* Convert to a string, checking for out-of-range time stamps. |
376 | Don't use 'ctime', as that might dump core if the hardware clock | |
377 | is set to a bizarre value. */ | |
378 | tm = localtime (&idiotic_interface); | |
d65b4235 PE |
379 | if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year) |
380 | && (the_date = asctime (tm)))) | |
5a84ed33 | 381 | fatal ("current time is out of range"); |
6b3ee98a RS |
382 | /* the_date has an unwanted newline at the end */ |
383 | date_length = strlen (the_date) - 1; | |
384 | the_date[date_length] = '\0'; | |
385 | temp = cuserid ((char *) NULL); | |
386 | user_length = strlen (temp); | |
387 | the_user = alloc_string (user_length + 1); | |
388 | strcpy (the_user, temp); | |
7543028e RS |
389 | the_string = alloc_string (3 + prefix_length |
390 | + user_length | |
391 | + date_length); | |
6b3ee98a RS |
392 | temp = the_string; |
393 | strcpy (temp, FROM_PREFIX); | |
394 | temp = &temp[prefix_length]; | |
395 | *temp++ = ' '; | |
396 | strcpy (temp, the_user); | |
397 | temp = &temp[user_length]; | |
398 | *temp++ = ' '; | |
399 | strcpy (temp, the_date); | |
400 | result = new_list (); | |
401 | result->string = the_string; | |
402 | result->continuation = ((line_list) NULL); | |
403 | return result; | |
404 | } | |
405 | ||
406 | void | |
407 | write_line_list (the_list, the_stream) | |
408 | register line_list the_list; | |
409 | FILE *the_stream; | |
410 | { | |
411 | for ( ; | |
412 | the_list != ((line_list) NULL) ; | |
413 | the_list = the_list->continuation) | |
414 | { | |
415 | fputs (the_list->string, the_stream); | |
416 | putc ('\n', the_stream); | |
417 | } | |
418 | return; | |
419 | } | |
420 | \f | |
421 | int | |
422 | close_the_streams () | |
423 | { | |
424 | register stream_list rem; | |
425 | for (rem = the_streams; | |
426 | rem != ((stream_list) NULL); | |
427 | rem = rem->rest_streams) | |
428 | no_problems = (no_problems && | |
429 | ((*rem->action) (rem->handle) == 0)); | |
430 | the_streams = ((stream_list) NULL); | |
65396510 | 431 | return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE); |
6b3ee98a RS |
432 | } |
433 | ||
434 | void | |
435 | add_a_stream (the_stream, closing_action) | |
436 | FILE *the_stream; | |
437 | int (*closing_action)(); | |
438 | { | |
439 | stream_list old = the_streams; | |
440 | the_streams = new_stream (); | |
441 | the_streams->handle = the_stream; | |
442 | the_streams->action = closing_action; | |
443 | the_streams->rest_streams = old; | |
444 | return; | |
445 | } | |
446 | ||
447 | int | |
448 | my_fclose (the_file) | |
449 | FILE *the_file; | |
450 | { | |
451 | putc ('\n', the_file); | |
452 | fflush (the_file); | |
453 | return fclose (the_file); | |
454 | } | |
455 | ||
456 | boolean | |
457 | open_a_file (name) | |
458 | char *name; | |
459 | { | |
460 | FILE *the_stream = fopen (name, "a"); | |
461 | if (the_stream != ((FILE *) NULL)) | |
462 | { | |
463 | add_a_stream (the_stream, my_fclose); | |
464 | if (the_user == ((char *) NULL)) | |
465 | file_preface = make_file_preface (); | |
466 | write_line_list (file_preface, the_stream); | |
467 | return true; | |
468 | } | |
469 | return false; | |
470 | } | |
471 | ||
472 | void | |
473 | put_string (s) | |
474 | char *s; | |
475 | { | |
476 | register stream_list rem; | |
477 | for (rem = the_streams; | |
478 | rem != ((stream_list) NULL); | |
479 | rem = rem->rest_streams) | |
480 | fputs (s, rem->handle); | |
481 | return; | |
482 | } | |
483 | ||
484 | void | |
a492a5b9 RS |
485 | put_line (string) |
486 | char *string; | |
6b3ee98a RS |
487 | { |
488 | register stream_list rem; | |
489 | for (rem = the_streams; | |
490 | rem != ((stream_list) NULL); | |
491 | rem = rem->rest_streams) | |
492 | { | |
a492a5b9 RS |
493 | char *s = string; |
494 | int column = 0; | |
495 | ||
496 | /* Divide STRING into lines. */ | |
497 | while (*s != 0) | |
498 | { | |
499 | char *breakpos; | |
500 | ||
fbffe7d9 | 501 | /* Find the last char that fits. */ |
a492a5b9 RS |
502 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
503 | { | |
504 | if (*breakpos == '\t') | |
505 | column += 8; | |
506 | else | |
507 | column++; | |
508 | } | |
fbffe7d9 RS |
509 | /* If we didn't reach end of line, break the line. */ |
510 | if (*breakpos) | |
a492a5b9 | 511 | { |
fbffe7d9 RS |
512 | /* Back up to just after the last comma that fits. */ |
513 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
514 | ||
515 | if (breakpos == s) | |
516 | { | |
517 | /* If no comma fits, move past the first address anyway. */ | |
518 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
519 | if (*breakpos != 0) | |
520 | /* Include the comma after it. */ | |
521 | ++breakpos; | |
522 | } | |
a492a5b9 RS |
523 | } |
524 | /* Output that much, then break the line. */ | |
525 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
526 | column = 8; |
527 | ||
528 | /* Skip whitespace and prepare to print more addresses. */ | |
529 | s = breakpos; | |
530 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
531 | if (*s != 0) |
532 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 533 | } |
6b3ee98a RS |
534 | putc ('\n', rem->handle); |
535 | } | |
536 | return; | |
537 | } | |
538 | \f | |
539 | #define mail_error error | |
540 | ||
3d23b985 RS |
541 | /* Handle an FCC field. FIELD is the text of the first line (after |
542 | the header name), and THE_LIST holds the continuation lines if any. | |
543 | Call open_a_file for each file. */ | |
544 | ||
6b3ee98a RS |
545 | void |
546 | setup_files (the_list, field) | |
547 | register line_list the_list; | |
548 | register char *field; | |
549 | { | |
550 | register char *start; | |
551 | register char c; | |
552 | while (true) | |
553 | { | |
3d23b985 RS |
554 | while (((c = *field) != '\0') |
555 | && (c == ' ' | |
556 | || c == '\t' | |
557 | || c == ',')) | |
6b3ee98a RS |
558 | field += 1; |
559 | if (c != '\0') | |
560 | { | |
561 | start = field; | |
3d23b985 RS |
562 | while (((c = *field) != '\0') |
563 | && c != ' ' | |
564 | && c != '\t' | |
565 | && c != ',') | |
6b3ee98a RS |
566 | field += 1; |
567 | *field = '\0'; | |
568 | if (!open_a_file (start)) | |
569 | mail_error ("Could not open file %s", start); | |
570 | *field = c; | |
571 | if (c != '\0') continue; | |
572 | } | |
3d23b985 RS |
573 | if (the_list == ((line_list) NULL)) |
574 | return; | |
6b3ee98a RS |
575 | field = the_list->string; |
576 | the_list = the_list->continuation; | |
577 | } | |
578 | } | |
579 | \f | |
3d23b985 RS |
580 | /* Compute the total size of all recipient names stored in THE_HEADER. |
581 | The result says how big to make the buffer to pass to parse_header. */ | |
582 | ||
6b3ee98a RS |
583 | int |
584 | args_size (the_header) | |
585 | header the_header; | |
586 | { | |
587 | register header old = the_header; | |
588 | register line_list rem; | |
589 | register int size = 0; | |
590 | do | |
591 | { | |
592 | char *field; | |
593 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
594 | if ((strcmp (keyword, "TO") == 0) |
595 | || (strcmp (keyword, "CC") == 0) | |
596 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
597 | { |
598 | size += 1 + strlen (field); | |
599 | for (rem = the_header->text->continuation; | |
600 | rem != NIL; | |
601 | rem = rem->continuation) | |
602 | size += 1 + strlen (rem->string); | |
603 | } | |
604 | the_header = the_header->next; | |
605 | } while (the_header != old); | |
606 | return size; | |
607 | } | |
608 | ||
3d23b985 RS |
609 | /* Scan the header described by the lists THE_HEADER, |
610 | and put all recipient names into the buffer WHERE. | |
611 | Precede each recipient name with a space. | |
612 | ||
613 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
614 | ||
cb58ebb0 | 615 | void |
6b3ee98a RS |
616 | parse_header (the_header, where) |
617 | header the_header; | |
618 | register char *where; | |
619 | { | |
620 | register header old = the_header; | |
621 | do | |
622 | { | |
623 | char *field; | |
624 | register char *keyword = get_keyword (the_header->text->string, &field); | |
625 | if (strcmp (keyword, "TO") == 0) | |
626 | where = add_field (the_header->text->continuation, field, where); | |
627 | else if (strcmp (keyword, "CC") == 0) | |
628 | where = add_field (the_header->text->continuation, field, where); | |
629 | else if (strcmp (keyword, "BCC") == 0) | |
630 | { | |
631 | where = add_field (the_header->text->continuation, field, where); | |
632 | the_header->previous->next = the_header->next; | |
633 | the_header->next->previous = the_header->previous; | |
634 | } | |
635 | else if (strcmp (keyword, "FCC") == 0) | |
636 | setup_files (the_header->text->continuation, field); | |
637 | the_header = the_header->next; | |
638 | } while (the_header != old); | |
639 | *where = '\0'; | |
640 | return; | |
641 | } | |
594aa066 | 642 | \f |
3d23b985 RS |
643 | /* Read lines from the input until we get a blank line. |
644 | Create a list of `header' objects, one for each header field, | |
645 | each of which points to a list of `line_list' objects, | |
646 | one for each line in that field. | |
647 | Continuation lines are grouped in the headers they continue. */ | |
594aa066 | 648 | |
6b3ee98a RS |
649 | header |
650 | read_header () | |
651 | { | |
652 | register header the_header = ((header) NULL); | |
653 | register line_list *next_line = ((line_list *) NULL); | |
654 | ||
655 | init_linebuffer (&lb); | |
656 | ||
657 | do | |
658 | { | |
659 | long length; | |
660 | register char *line; | |
661 | ||
662 | readline (&lb, stdin); | |
663 | line = lb.buffer; | |
664 | length = strlen (line); | |
665 | if (length == 0) break; | |
666 | ||
667 | if (has_keyword (line)) | |
668 | { | |
669 | register header old = the_header; | |
670 | the_header = new_header (); | |
671 | if (old == ((header) NULL)) | |
672 | { | |
673 | the_header->next = the_header; | |
674 | the_header->previous = the_header; | |
675 | } | |
676 | else | |
677 | { | |
678 | the_header->previous = old; | |
679 | the_header->next = old->next; | |
680 | old->next = the_header; | |
681 | } | |
682 | next_line = &(the_header->text); | |
683 | } | |
684 | ||
685 | if (next_line == ((line_list *) NULL)) | |
686 | { | |
687 | /* Not a valid header */ | |
65396510 | 688 | exit (EXIT_FAILURE); |
6b3ee98a RS |
689 | } |
690 | *next_line = new_list (); | |
691 | (*next_line)->string = alloc_string (length); | |
692 | strcpy (((*next_line)->string), line); | |
693 | next_line = &((*next_line)->continuation); | |
694 | *next_line = NIL; | |
695 | ||
696 | } while (true); | |
697 | ||
2ef88a94 RS |
698 | if (! the_header) |
699 | fatal ("input message has no header"); | |
6b3ee98a RS |
700 | return the_header->next; |
701 | } | |
702 | \f | |
703 | void | |
704 | write_header (the_header) | |
705 | header the_header; | |
706 | { | |
707 | register header old = the_header; | |
708 | do | |
709 | { | |
710 | register line_list the_list; | |
711 | for (the_list = the_header->text; | |
712 | the_list != NIL; | |
713 | the_list = the_list->continuation) | |
714 | put_line (the_list->string); | |
715 | the_header = the_header->next; | |
716 | } while (the_header != old); | |
717 | put_line (""); | |
718 | return; | |
719 | } | |
720 | \f | |
d0dff6e5 | 721 | int |
6b3ee98a RS |
722 | main (argc, argv) |
723 | int argc; | |
724 | char **argv; | |
725 | { | |
726 | char *command_line; | |
727 | header the_header; | |
728 | long name_length; | |
729 | char *mail_program_name; | |
730 | char buf[BUFLEN + 1]; | |
731 | register int size; | |
732 | FILE *the_pipe; | |
733 | ||
734 | extern char *getenv (); | |
735 | ||
736 | mail_program_name = getenv ("FAKEMAILER"); | |
737 | if (!(mail_program_name && *mail_program_name)) | |
45c1955d | 738 | mail_program_name = MAIL_PROGRAM_NAME; |
6b3ee98a RS |
739 | name_length = strlen (mail_program_name); |
740 | ||
741 | my_name = MY_NAME; | |
742 | the_streams = ((stream_list) NULL); | |
743 | the_date = ((char *) NULL); | |
744 | the_user = ((char *) NULL); | |
745 | ||
746 | the_header = read_header (); | |
747 | command_line = alloc_string (name_length + args_size (the_header)); | |
748 | strcpy (command_line, mail_program_name); | |
749 | parse_header (the_header, &command_line[name_length]); | |
594aa066 | 750 | |
6b3ee98a RS |
751 | the_pipe = popen (command_line, "w"); |
752 | if (the_pipe == ((FILE *) NULL)) | |
753 | fatal ("cannot open pipe to real mailer"); | |
754 | ||
755 | add_a_stream (the_pipe, pclose); | |
756 | ||
757 | write_header (the_header); | |
758 | ||
759 | /* Dump the message itself */ | |
760 | ||
761 | while (!feof (stdin)) | |
762 | { | |
763 | size = fread (buf, 1, BUFLEN, stdin); | |
764 | buf[size] = '\0'; | |
765 | put_string (buf); | |
766 | } | |
767 | ||
768 | exit (close_the_streams ()); | |
769 | } | |
770 | ||
26528bbc | 771 | #endif /* not MSDOS */ |
6b3ee98a | 772 | #endif /* not BSD 4.2 (or newer) */ |
ab5796a9 MB |
773 | |
774 | /* arch-tag: acb0afa6-315a-4c5b-b9e3-def5725c8783 | |
775 | (do not change this comment) */ | |
65396510 TTN |
776 | |
777 | /* fakemail.c ends here */ |