Commit | Line | Data |
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6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
92b47a4a | 2 | Copyright (C) 1985, 1994, 1999, 2002, 2003, 2004, |
273dc16a | 3 | 2005, 2006 Free Software Foundation, Inc. |
6b3ee98a RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
518dd722 JB |
7 | GNU Emacs is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
530715fe | 9 | the Free Software Foundation; either version 2, or (at your option) |
518dd722 JB |
10 | any later version. |
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 | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
6b3ee98a | 21 | |
6b3ee98a | 22 | #define NO_SHORTNAMES |
a33c19b1 | 23 | #define _XOPEN_SOURCE 500 /* for cuserid */ |
594aa066 PJ |
24 | |
25 | #ifdef HAVE_CONFIG_H | |
4838e624 | 26 | #include <config.h> |
594aa066 | 27 | #endif |
6b3ee98a | 28 | |
e397a017 | 29 | #if defined (BSD_SYSTEM) && !defined (BSD4_1) && !defined (USE_FAKEMAIL) |
6b3ee98a | 30 | /* This program isnot used in BSD, so just avoid loader complaints. */ |
d0dff6e5 | 31 | int |
6b3ee98a RS |
32 | main () |
33 | { | |
0d1841a6 | 34 | return 0; |
6b3ee98a RS |
35 | } |
36 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 37 | #ifdef MSDOS |
d0dff6e5 | 38 | int |
26528bbc RS |
39 | main () |
40 | { | |
0d1841a6 | 41 | return 0; |
26528bbc RS |
42 | } |
43 | #else /* not MSDOS */ | |
6b3ee98a RS |
44 | /* This conditional contains all the rest of the file. */ |
45 | ||
46 | /* These are defined in config in some versions. */ | |
47 | ||
48 | #ifdef static | |
49 | #undef static | |
50 | #endif | |
51 | ||
7c544420 RS |
52 | #ifdef WINDOWSNT |
53 | #include "ntlib.h" | |
54 | #endif | |
55 | ||
6b3ee98a RS |
56 | #include <stdio.h> |
57 | #include <string.h> | |
58 | #include <ctype.h> | |
59 | #include <time.h> | |
60 | #include <pwd.h> | |
7543028e RS |
61 | |
62 | /* This is to declare cuserid. */ | |
63 | #ifdef HAVE_UNISTD_H | |
64 | #include <unistd.h> | |
65 | #endif | |
6b3ee98a RS |
66 | \f |
67 | /* Type definitions */ | |
68 | ||
69 | #define boolean int | |
70 | #define true 1 | |
71 | #define false 0 | |
72 | ||
73 | /* Various lists */ | |
74 | ||
75 | struct line_record | |
76 | { | |
77 | char *string; | |
78 | struct line_record *continuation; | |
79 | }; | |
80 | typedef struct line_record *line_list; | |
81 | ||
82 | struct header_record | |
83 | { | |
84 | line_list text; | |
85 | struct header_record *next; | |
86 | struct header_record *previous; | |
87 | }; | |
88 | typedef struct header_record *header; | |
594aa066 | 89 | |
6b3ee98a RS |
90 | struct stream_record |
91 | { | |
92 | FILE *handle; | |
93 | int (*action)(); | |
94 | struct stream_record *rest_streams; | |
95 | }; | |
96 | typedef struct stream_record *stream_list; | |
97 | ||
98 | /* A `struct linebuffer' is a structure which holds a line of text. | |
99 | * `readline' reads a line from a stream into a linebuffer | |
100 | * and works regardless of the length of the line. | |
101 | */ | |
102 | ||
103 | struct linebuffer | |
104 | { | |
105 | long size; | |
106 | char *buffer; | |
107 | }; | |
108 | ||
109 | struct linebuffer lb; | |
110 | ||
111 | #define new_list() \ | |
112 | ((line_list) xmalloc (sizeof (struct line_record))) | |
113 | #define new_header() \ | |
114 | ((header) xmalloc (sizeof (struct header_record))) | |
115 | #define new_stream() \ | |
116 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
117 | #define alloc_string(nchars) \ | |
118 | ((char *) xmalloc ((nchars) + 1)) | |
119 | \f | |
120 | /* Global declarations */ | |
121 | ||
122 | #define BUFLEN 1024 | |
123 | #define KEYWORD_SIZE 256 | |
124 | #define FROM_PREFIX "From" | |
125 | #define MY_NAME "fakemail" | |
126 | #define NIL ((line_list) NULL) | |
127 | #define INITIAL_LINE_SIZE 200 | |
128 | ||
129 | #ifndef MAIL_PROGRAM_NAME | |
130 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
131 | #endif | |
132 | ||
133 | static char *my_name; | |
134 | static char *the_date; | |
135 | static char *the_user; | |
136 | static line_list file_preface; | |
137 | static stream_list the_streams; | |
138 | static boolean no_problems = true; | |
139 | ||
140 | extern FILE *popen (); | |
141 | extern int fclose (), pclose (); | |
6b3ee98a RS |
142 | |
143 | #ifdef CURRENT_USER | |
144 | extern struct passwd *getpwuid (); | |
145 | extern unsigned short geteuid (); | |
146 | static struct passwd *my_entry; | |
147 | #define cuserid(s) \ | |
148 | (my_entry = getpwuid (((int) geteuid ())), \ | |
149 | my_entry->pw_name) | |
150 | #endif | |
151 | \f | |
152 | /* Utilities */ | |
153 | ||
154 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
155 | ||
156 | static void | |
157 | error (s1, s2) | |
158 | char *s1, *s2; | |
159 | { | |
160 | printf ("%s: ", my_name); | |
161 | printf (s1, s2); | |
162 | printf ("\n"); | |
163 | no_problems = false; | |
164 | } | |
165 | ||
166 | /* Print error message and exit. */ | |
167 | ||
168 | static void | |
169 | fatal (s1, s2) | |
170 | char *s1, *s2; | |
171 | { | |
172 | error (s1, s2); | |
65396510 | 173 | exit (EXIT_FAILURE); |
6b3ee98a RS |
174 | } |
175 | ||
176 | /* Like malloc but get fatal error if memory is exhausted. */ | |
177 | ||
65119039 | 178 | static long * |
6b3ee98a RS |
179 | xmalloc (size) |
180 | int size; | |
181 | { | |
65119039 RS |
182 | long *result = (long *) malloc (((unsigned) size)); |
183 | if (result == ((long *) NULL)) | |
6b3ee98a RS |
184 | fatal ("virtual memory exhausted", 0); |
185 | return result; | |
186 | } | |
187 | ||
65119039 | 188 | static long * |
6b3ee98a | 189 | xrealloc (ptr, size) |
65119039 | 190 | long *ptr; |
6b3ee98a RS |
191 | int size; |
192 | { | |
65119039 | 193 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 194 | if (result == ((long *) NULL)) |
6b3ee98a RS |
195 | fatal ("virtual memory exhausted"); |
196 | return result; | |
197 | } | |
198 | \f | |
199 | /* Initialize a linebuffer for use */ | |
200 | ||
201 | void | |
202 | init_linebuffer (linebuffer) | |
203 | struct linebuffer *linebuffer; | |
204 | { | |
205 | linebuffer->size = INITIAL_LINE_SIZE; | |
206 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
207 | } | |
208 | ||
209 | /* Read a line of text from `stream' into `linebuffer'. | |
594aa066 | 210 | Return the length of the line. */ |
6b3ee98a RS |
211 | |
212 | long | |
213 | readline (linebuffer, stream) | |
214 | struct linebuffer *linebuffer; | |
215 | FILE *stream; | |
216 | { | |
217 | char *buffer = linebuffer->buffer; | |
218 | char *p = linebuffer->buffer; | |
219 | char *end = p + linebuffer->size; | |
220 | ||
221 | while (true) | |
222 | { | |
223 | int c = getc (stream); | |
224 | if (p == end) | |
225 | { | |
226 | linebuffer->size *= 2; | |
26df3bb0 | 227 | buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size)); |
f3309b68 | 228 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 229 | end = buffer + linebuffer->size; |
6b3ee98a RS |
230 | linebuffer->buffer = buffer; |
231 | } | |
232 | if (c < 0 || c == '\n') | |
233 | { | |
234 | *p = 0; | |
235 | break; | |
236 | } | |
237 | *p++ = c; | |
238 | } | |
239 | ||
240 | return p - buffer; | |
241 | } | |
242 | \f | |
3d23b985 RS |
243 | /* Extract a colon-terminated keyword from the string FIELD. |
244 | Return that keyword as a string stored in a static buffer. | |
245 | Store the address of the rest of the string into *REST. | |
246 | ||
247 | If there is no keyword, return NULL and don't alter *REST. */ | |
248 | ||
6b3ee98a RS |
249 | char * |
250 | get_keyword (field, rest) | |
251 | register char *field; | |
252 | char **rest; | |
253 | { | |
254 | static char keyword[KEYWORD_SIZE]; | |
255 | register char *ptr; | |
859cbb40 | 256 | register int c; |
6b3ee98a RS |
257 | |
258 | ptr = &keyword[0]; | |
859cbb40 | 259 | c = (unsigned char) *field++; |
3d23b985 | 260 | if (isspace (c) || c == ':') |
6b3ee98a | 261 | return ((char *) NULL); |
3d23b985 | 262 | *ptr++ = (islower (c) ? toupper (c) : c); |
859cbb40 | 263 | while (((c = (unsigned char) *field++) != ':') && ! isspace (c)) |
3d23b985 | 264 | *ptr++ = (islower (c) ? toupper (c) : c); |
6b3ee98a | 265 | *ptr++ = '\0'; |
3d23b985 | 266 | while (isspace (c)) |
859cbb40 | 267 | c = (unsigned char) *field++; |
3d23b985 RS |
268 | if (c != ':') |
269 | return ((char *) NULL); | |
6b3ee98a RS |
270 | *rest = field; |
271 | return &keyword[0]; | |
272 | } | |
273 | ||
3d23b985 RS |
274 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
275 | ||
6b3ee98a RS |
276 | boolean |
277 | has_keyword (field) | |
278 | char *field; | |
279 | { | |
280 | char *ignored; | |
281 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
282 | } | |
283 | ||
3d23b985 RS |
284 | /* Store the string FIELD, followed by any lines in THE_LIST, |
285 | into the buffer WHERE. | |
286 | Concatenate lines, putting just a space between them. | |
287 | Delete everything contained in parentheses. | |
288 | When a recipient name contains <...>, we discard | |
289 | everything except what is inside the <...>. | |
290 | ||
291 | We don't pay attention to overflowing WHERE; | |
292 | the caller has to make it big enough. */ | |
293 | ||
6b3ee98a RS |
294 | char * |
295 | add_field (the_list, field, where) | |
296 | line_list the_list; | |
297 | register char *field, *where; | |
298 | { | |
299 | register char c; | |
300 | while (true) | |
301 | { | |
3d23b985 RS |
302 | char *this_recipient_where; |
303 | int in_quotes = 0; | |
304 | ||
6b3ee98a | 305 | *where++ = ' '; |
3d23b985 RS |
306 | this_recipient_where = where; |
307 | ||
6b3ee98a RS |
308 | while ((c = *field++) != '\0') |
309 | { | |
3d23b985 RS |
310 | if (c == '\\') |
311 | *where++ = c; | |
312 | else if (c == '"') | |
313 | { | |
314 | in_quotes = ! in_quotes; | |
315 | *where++ = c; | |
316 | } | |
317 | else if (in_quotes) | |
318 | *where++ = c; | |
319 | else if (c == '(') | |
6b3ee98a RS |
320 | { |
321 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
322 | if (! (*field++)) break; /* no close */ |
323 | continue; | |
6b3ee98a | 324 | } |
3d23b985 RS |
325 | else if (c == ',') |
326 | { | |
327 | *where++ = ' '; | |
328 | /* When we get to the end of one recipient, | |
329 | don't discard it if the next one has <...>. */ | |
330 | this_recipient_where = where; | |
331 | } | |
332 | else if (c == '<') | |
333 | /* Discard everything we got before the `<'. */ | |
334 | where = this_recipient_where; | |
335 | else if (c == '>') | |
336 | /* Discard the rest of this name that follows the `>'. */ | |
337 | { | |
338 | while (*field && *field != ',') ++field; | |
339 | if (! (*field++)) break; /* no comma */ | |
340 | continue; | |
341 | } | |
342 | else | |
343 | *where++ = c; | |
6b3ee98a RS |
344 | } |
345 | if (the_list == NIL) break; | |
346 | field = the_list->string; | |
347 | the_list = the_list->continuation; | |
348 | } | |
349 | return where; | |
350 | } | |
351 | \f | |
352 | line_list | |
353 | make_file_preface () | |
354 | { | |
355 | char *the_string, *temp; | |
356 | long idiotic_interface; | |
357 | long prefix_length; | |
358 | long user_length; | |
359 | long date_length; | |
360 | line_list result; | |
361 | ||
362 | prefix_length = strlen (FROM_PREFIX); | |
363 | time (&idiotic_interface); | |
364 | the_date = ctime (&idiotic_interface); | |
365 | /* the_date has an unwanted newline at the end */ | |
366 | date_length = strlen (the_date) - 1; | |
367 | the_date[date_length] = '\0'; | |
368 | temp = cuserid ((char *) NULL); | |
369 | user_length = strlen (temp); | |
370 | the_user = alloc_string (user_length + 1); | |
371 | strcpy (the_user, temp); | |
7543028e RS |
372 | the_string = alloc_string (3 + prefix_length |
373 | + user_length | |
374 | + date_length); | |
6b3ee98a RS |
375 | temp = the_string; |
376 | strcpy (temp, FROM_PREFIX); | |
377 | temp = &temp[prefix_length]; | |
378 | *temp++ = ' '; | |
379 | strcpy (temp, the_user); | |
380 | temp = &temp[user_length]; | |
381 | *temp++ = ' '; | |
382 | strcpy (temp, the_date); | |
383 | result = new_list (); | |
384 | result->string = the_string; | |
385 | result->continuation = ((line_list) NULL); | |
386 | return result; | |
387 | } | |
388 | ||
389 | void | |
390 | write_line_list (the_list, the_stream) | |
391 | register line_list the_list; | |
392 | FILE *the_stream; | |
393 | { | |
394 | for ( ; | |
395 | the_list != ((line_list) NULL) ; | |
396 | the_list = the_list->continuation) | |
397 | { | |
398 | fputs (the_list->string, the_stream); | |
399 | putc ('\n', the_stream); | |
400 | } | |
401 | return; | |
402 | } | |
403 | \f | |
404 | int | |
405 | close_the_streams () | |
406 | { | |
407 | register stream_list rem; | |
408 | for (rem = the_streams; | |
409 | rem != ((stream_list) NULL); | |
410 | rem = rem->rest_streams) | |
411 | no_problems = (no_problems && | |
412 | ((*rem->action) (rem->handle) == 0)); | |
413 | the_streams = ((stream_list) NULL); | |
65396510 | 414 | return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE); |
6b3ee98a RS |
415 | } |
416 | ||
417 | void | |
418 | add_a_stream (the_stream, closing_action) | |
419 | FILE *the_stream; | |
420 | int (*closing_action)(); | |
421 | { | |
422 | stream_list old = the_streams; | |
423 | the_streams = new_stream (); | |
424 | the_streams->handle = the_stream; | |
425 | the_streams->action = closing_action; | |
426 | the_streams->rest_streams = old; | |
427 | return; | |
428 | } | |
429 | ||
430 | int | |
431 | my_fclose (the_file) | |
432 | FILE *the_file; | |
433 | { | |
434 | putc ('\n', the_file); | |
435 | fflush (the_file); | |
436 | return fclose (the_file); | |
437 | } | |
438 | ||
439 | boolean | |
440 | open_a_file (name) | |
441 | char *name; | |
442 | { | |
443 | FILE *the_stream = fopen (name, "a"); | |
444 | if (the_stream != ((FILE *) NULL)) | |
445 | { | |
446 | add_a_stream (the_stream, my_fclose); | |
447 | if (the_user == ((char *) NULL)) | |
448 | file_preface = make_file_preface (); | |
449 | write_line_list (file_preface, the_stream); | |
450 | return true; | |
451 | } | |
452 | return false; | |
453 | } | |
454 | ||
455 | void | |
456 | put_string (s) | |
457 | char *s; | |
458 | { | |
459 | register stream_list rem; | |
460 | for (rem = the_streams; | |
461 | rem != ((stream_list) NULL); | |
462 | rem = rem->rest_streams) | |
463 | fputs (s, rem->handle); | |
464 | return; | |
465 | } | |
466 | ||
467 | void | |
a492a5b9 RS |
468 | put_line (string) |
469 | char *string; | |
6b3ee98a RS |
470 | { |
471 | register stream_list rem; | |
472 | for (rem = the_streams; | |
473 | rem != ((stream_list) NULL); | |
474 | rem = rem->rest_streams) | |
475 | { | |
a492a5b9 RS |
476 | char *s = string; |
477 | int column = 0; | |
478 | ||
479 | /* Divide STRING into lines. */ | |
480 | while (*s != 0) | |
481 | { | |
482 | char *breakpos; | |
483 | ||
fbffe7d9 | 484 | /* Find the last char that fits. */ |
a492a5b9 RS |
485 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
486 | { | |
487 | if (*breakpos == '\t') | |
488 | column += 8; | |
489 | else | |
490 | column++; | |
491 | } | |
fbffe7d9 RS |
492 | /* If we didn't reach end of line, break the line. */ |
493 | if (*breakpos) | |
a492a5b9 | 494 | { |
fbffe7d9 RS |
495 | /* Back up to just after the last comma that fits. */ |
496 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
497 | ||
498 | if (breakpos == s) | |
499 | { | |
500 | /* If no comma fits, move past the first address anyway. */ | |
501 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
502 | if (*breakpos != 0) | |
503 | /* Include the comma after it. */ | |
504 | ++breakpos; | |
505 | } | |
a492a5b9 RS |
506 | } |
507 | /* Output that much, then break the line. */ | |
508 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
509 | column = 8; |
510 | ||
511 | /* Skip whitespace and prepare to print more addresses. */ | |
512 | s = breakpos; | |
513 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
514 | if (*s != 0) |
515 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 516 | } |
6b3ee98a RS |
517 | putc ('\n', rem->handle); |
518 | } | |
519 | return; | |
520 | } | |
521 | \f | |
522 | #define mail_error error | |
523 | ||
3d23b985 RS |
524 | /* Handle an FCC field. FIELD is the text of the first line (after |
525 | the header name), and THE_LIST holds the continuation lines if any. | |
526 | Call open_a_file for each file. */ | |
527 | ||
6b3ee98a RS |
528 | void |
529 | setup_files (the_list, field) | |
530 | register line_list the_list; | |
531 | register char *field; | |
532 | { | |
533 | register char *start; | |
534 | register char c; | |
535 | while (true) | |
536 | { | |
3d23b985 RS |
537 | while (((c = *field) != '\0') |
538 | && (c == ' ' | |
539 | || c == '\t' | |
540 | || c == ',')) | |
6b3ee98a RS |
541 | field += 1; |
542 | if (c != '\0') | |
543 | { | |
544 | start = field; | |
3d23b985 RS |
545 | while (((c = *field) != '\0') |
546 | && c != ' ' | |
547 | && c != '\t' | |
548 | && c != ',') | |
6b3ee98a RS |
549 | field += 1; |
550 | *field = '\0'; | |
551 | if (!open_a_file (start)) | |
552 | mail_error ("Could not open file %s", start); | |
553 | *field = c; | |
554 | if (c != '\0') continue; | |
555 | } | |
3d23b985 RS |
556 | if (the_list == ((line_list) NULL)) |
557 | return; | |
6b3ee98a RS |
558 | field = the_list->string; |
559 | the_list = the_list->continuation; | |
560 | } | |
561 | } | |
562 | \f | |
3d23b985 RS |
563 | /* Compute the total size of all recipient names stored in THE_HEADER. |
564 | The result says how big to make the buffer to pass to parse_header. */ | |
565 | ||
6b3ee98a RS |
566 | int |
567 | args_size (the_header) | |
568 | header the_header; | |
569 | { | |
570 | register header old = the_header; | |
571 | register line_list rem; | |
572 | register int size = 0; | |
573 | do | |
574 | { | |
575 | char *field; | |
576 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
577 | if ((strcmp (keyword, "TO") == 0) |
578 | || (strcmp (keyword, "CC") == 0) | |
579 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
580 | { |
581 | size += 1 + strlen (field); | |
582 | for (rem = the_header->text->continuation; | |
583 | rem != NIL; | |
584 | rem = rem->continuation) | |
585 | size += 1 + strlen (rem->string); | |
586 | } | |
587 | the_header = the_header->next; | |
588 | } while (the_header != old); | |
589 | return size; | |
590 | } | |
591 | ||
3d23b985 RS |
592 | /* Scan the header described by the lists THE_HEADER, |
593 | and put all recipient names into the buffer WHERE. | |
594 | Precede each recipient name with a space. | |
595 | ||
596 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
597 | ||
cb58ebb0 | 598 | void |
6b3ee98a RS |
599 | parse_header (the_header, where) |
600 | header the_header; | |
601 | register char *where; | |
602 | { | |
603 | register header old = the_header; | |
604 | do | |
605 | { | |
606 | char *field; | |
607 | register char *keyword = get_keyword (the_header->text->string, &field); | |
608 | if (strcmp (keyword, "TO") == 0) | |
609 | where = add_field (the_header->text->continuation, field, where); | |
610 | else if (strcmp (keyword, "CC") == 0) | |
611 | where = add_field (the_header->text->continuation, field, where); | |
612 | else if (strcmp (keyword, "BCC") == 0) | |
613 | { | |
614 | where = add_field (the_header->text->continuation, field, where); | |
615 | the_header->previous->next = the_header->next; | |
616 | the_header->next->previous = the_header->previous; | |
617 | } | |
618 | else if (strcmp (keyword, "FCC") == 0) | |
619 | setup_files (the_header->text->continuation, field); | |
620 | the_header = the_header->next; | |
621 | } while (the_header != old); | |
622 | *where = '\0'; | |
623 | return; | |
624 | } | |
594aa066 | 625 | \f |
3d23b985 RS |
626 | /* Read lines from the input until we get a blank line. |
627 | Create a list of `header' objects, one for each header field, | |
628 | each of which points to a list of `line_list' objects, | |
629 | one for each line in that field. | |
630 | Continuation lines are grouped in the headers they continue. */ | |
594aa066 | 631 | |
6b3ee98a RS |
632 | header |
633 | read_header () | |
634 | { | |
635 | register header the_header = ((header) NULL); | |
636 | register line_list *next_line = ((line_list *) NULL); | |
637 | ||
638 | init_linebuffer (&lb); | |
639 | ||
640 | do | |
641 | { | |
642 | long length; | |
643 | register char *line; | |
644 | ||
645 | readline (&lb, stdin); | |
646 | line = lb.buffer; | |
647 | length = strlen (line); | |
648 | if (length == 0) break; | |
649 | ||
650 | if (has_keyword (line)) | |
651 | { | |
652 | register header old = the_header; | |
653 | the_header = new_header (); | |
654 | if (old == ((header) NULL)) | |
655 | { | |
656 | the_header->next = the_header; | |
657 | the_header->previous = the_header; | |
658 | } | |
659 | else | |
660 | { | |
661 | the_header->previous = old; | |
662 | the_header->next = old->next; | |
663 | old->next = the_header; | |
664 | } | |
665 | next_line = &(the_header->text); | |
666 | } | |
667 | ||
668 | if (next_line == ((line_list *) NULL)) | |
669 | { | |
670 | /* Not a valid header */ | |
65396510 | 671 | exit (EXIT_FAILURE); |
6b3ee98a RS |
672 | } |
673 | *next_line = new_list (); | |
674 | (*next_line)->string = alloc_string (length); | |
675 | strcpy (((*next_line)->string), line); | |
676 | next_line = &((*next_line)->continuation); | |
677 | *next_line = NIL; | |
678 | ||
679 | } while (true); | |
680 | ||
681 | return the_header->next; | |
682 | } | |
683 | \f | |
684 | void | |
685 | write_header (the_header) | |
686 | header the_header; | |
687 | { | |
688 | register header old = the_header; | |
689 | do | |
690 | { | |
691 | register line_list the_list; | |
692 | for (the_list = the_header->text; | |
693 | the_list != NIL; | |
694 | the_list = the_list->continuation) | |
695 | put_line (the_list->string); | |
696 | the_header = the_header->next; | |
697 | } while (the_header != old); | |
698 | put_line (""); | |
699 | return; | |
700 | } | |
701 | \f | |
d0dff6e5 | 702 | int |
6b3ee98a RS |
703 | main (argc, argv) |
704 | int argc; | |
705 | char **argv; | |
706 | { | |
707 | char *command_line; | |
708 | header the_header; | |
709 | long name_length; | |
710 | char *mail_program_name; | |
711 | char buf[BUFLEN + 1]; | |
712 | register int size; | |
713 | FILE *the_pipe; | |
714 | ||
715 | extern char *getenv (); | |
716 | ||
717 | mail_program_name = getenv ("FAKEMAILER"); | |
718 | if (!(mail_program_name && *mail_program_name)) | |
719 | mail_program_name = MAIL_PROGRAM_NAME; | |
720 | name_length = strlen (mail_program_name); | |
721 | ||
722 | my_name = MY_NAME; | |
723 | the_streams = ((stream_list) NULL); | |
724 | the_date = ((char *) NULL); | |
725 | the_user = ((char *) NULL); | |
726 | ||
727 | the_header = read_header (); | |
728 | command_line = alloc_string (name_length + args_size (the_header)); | |
729 | strcpy (command_line, mail_program_name); | |
730 | parse_header (the_header, &command_line[name_length]); | |
594aa066 | 731 | |
6b3ee98a RS |
732 | the_pipe = popen (command_line, "w"); |
733 | if (the_pipe == ((FILE *) NULL)) | |
734 | fatal ("cannot open pipe to real mailer"); | |
735 | ||
736 | add_a_stream (the_pipe, pclose); | |
737 | ||
738 | write_header (the_header); | |
739 | ||
740 | /* Dump the message itself */ | |
741 | ||
742 | while (!feof (stdin)) | |
743 | { | |
744 | size = fread (buf, 1, BUFLEN, stdin); | |
745 | buf[size] = '\0'; | |
746 | put_string (buf); | |
747 | } | |
748 | ||
749 | exit (close_the_streams ()); | |
750 | } | |
751 | ||
26528bbc | 752 | #endif /* not MSDOS */ |
6b3ee98a | 753 | #endif /* not BSD 4.2 (or newer) */ |
ab5796a9 MB |
754 | |
755 | /* arch-tag: acb0afa6-315a-4c5b-b9e3-def5725c8783 | |
756 | (do not change this comment) */ | |
65396510 TTN |
757 | |
758 | /* fakemail.c ends here */ |