Commit | Line | Data |
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6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
3a22ee35 | 2 | Copyright (C) 1985, 1994 Free Software Foundation, Inc. |
6b3ee98a RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
518dd722 JB |
6 | GNU Emacs is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
530715fe | 8 | the Free Software Foundation; either version 2, or (at your option) |
518dd722 JB |
9 | any later version. |
10 | ||
6b3ee98a | 11 | GNU Emacs is distributed in the hope that it will be useful, |
518dd722 JB |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
6b3ee98a RS |
20 | |
21 | ||
22 | #define NO_SHORTNAMES | |
18160b98 | 23 | #include <../src/config.h> |
6b3ee98a RS |
24 | |
25 | #if defined (BSD) && !defined (BSD4_1) && !defined (USE_FAKEMAIL) | |
26 | /* This program isnot used in BSD, so just avoid loader complaints. */ | |
340ff9de | 27 | void |
6b3ee98a RS |
28 | main () |
29 | { | |
30 | } | |
31 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 32 | #ifdef MSDOS |
340ff9de | 33 | void |
26528bbc RS |
34 | main () |
35 | { | |
36 | } | |
37 | #else /* not MSDOS */ | |
6b3ee98a RS |
38 | /* This conditional contains all the rest of the file. */ |
39 | ||
40 | /* These are defined in config in some versions. */ | |
41 | ||
42 | #ifdef static | |
43 | #undef static | |
44 | #endif | |
45 | ||
46 | #ifdef read | |
47 | #undef read | |
48 | #undef write | |
49 | #undef open | |
50 | #undef close | |
51 | #endif | |
52 | ||
53 | #include <stdio.h> | |
54 | #include <string.h> | |
55 | #include <ctype.h> | |
56 | #include <time.h> | |
57 | #include <pwd.h> | |
58 | \f | |
59 | /* Type definitions */ | |
60 | ||
61 | #define boolean int | |
62 | #define true 1 | |
63 | #define false 0 | |
64 | ||
65 | /* Various lists */ | |
66 | ||
67 | struct line_record | |
68 | { | |
69 | char *string; | |
70 | struct line_record *continuation; | |
71 | }; | |
72 | typedef struct line_record *line_list; | |
73 | ||
74 | struct header_record | |
75 | { | |
76 | line_list text; | |
77 | struct header_record *next; | |
78 | struct header_record *previous; | |
79 | }; | |
80 | typedef struct header_record *header; | |
81 | ||
82 | struct stream_record | |
83 | { | |
84 | FILE *handle; | |
85 | int (*action)(); | |
86 | struct stream_record *rest_streams; | |
87 | }; | |
88 | typedef struct stream_record *stream_list; | |
89 | ||
90 | /* A `struct linebuffer' is a structure which holds a line of text. | |
91 | * `readline' reads a line from a stream into a linebuffer | |
92 | * and works regardless of the length of the line. | |
93 | */ | |
94 | ||
95 | struct linebuffer | |
96 | { | |
97 | long size; | |
98 | char *buffer; | |
99 | }; | |
100 | ||
101 | struct linebuffer lb; | |
102 | ||
103 | #define new_list() \ | |
104 | ((line_list) xmalloc (sizeof (struct line_record))) | |
105 | #define new_header() \ | |
106 | ((header) xmalloc (sizeof (struct header_record))) | |
107 | #define new_stream() \ | |
108 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
109 | #define alloc_string(nchars) \ | |
110 | ((char *) xmalloc ((nchars) + 1)) | |
111 | \f | |
112 | /* Global declarations */ | |
113 | ||
114 | #define BUFLEN 1024 | |
115 | #define KEYWORD_SIZE 256 | |
116 | #define FROM_PREFIX "From" | |
117 | #define MY_NAME "fakemail" | |
118 | #define NIL ((line_list) NULL) | |
119 | #define INITIAL_LINE_SIZE 200 | |
120 | ||
121 | #ifndef MAIL_PROGRAM_NAME | |
122 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
123 | #endif | |
124 | ||
125 | static char *my_name; | |
126 | static char *the_date; | |
127 | static char *the_user; | |
128 | static line_list file_preface; | |
129 | static stream_list the_streams; | |
130 | static boolean no_problems = true; | |
131 | ||
132 | extern FILE *popen (); | |
133 | extern int fclose (), pclose (); | |
6b3ee98a RS |
134 | |
135 | #ifdef CURRENT_USER | |
136 | extern struct passwd *getpwuid (); | |
137 | extern unsigned short geteuid (); | |
138 | static struct passwd *my_entry; | |
139 | #define cuserid(s) \ | |
140 | (my_entry = getpwuid (((int) geteuid ())), \ | |
141 | my_entry->pw_name) | |
142 | #endif | |
143 | \f | |
144 | /* Utilities */ | |
145 | ||
146 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
147 | ||
148 | static void | |
149 | error (s1, s2) | |
150 | char *s1, *s2; | |
151 | { | |
152 | printf ("%s: ", my_name); | |
153 | printf (s1, s2); | |
154 | printf ("\n"); | |
155 | no_problems = false; | |
156 | } | |
157 | ||
158 | /* Print error message and exit. */ | |
159 | ||
160 | static void | |
161 | fatal (s1, s2) | |
162 | char *s1, *s2; | |
163 | { | |
164 | error (s1, s2); | |
165 | exit (1); | |
166 | } | |
167 | ||
168 | /* Like malloc but get fatal error if memory is exhausted. */ | |
169 | ||
65119039 | 170 | static long * |
6b3ee98a RS |
171 | xmalloc (size) |
172 | int size; | |
173 | { | |
65119039 RS |
174 | long *result = (long *) malloc (((unsigned) size)); |
175 | if (result == ((long *) NULL)) | |
6b3ee98a RS |
176 | fatal ("virtual memory exhausted", 0); |
177 | return result; | |
178 | } | |
179 | ||
65119039 | 180 | static long * |
6b3ee98a | 181 | xrealloc (ptr, size) |
65119039 | 182 | long *ptr; |
6b3ee98a RS |
183 | int size; |
184 | { | |
65119039 | 185 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 186 | if (result == ((long *) NULL)) |
6b3ee98a RS |
187 | fatal ("virtual memory exhausted"); |
188 | return result; | |
189 | } | |
190 | \f | |
191 | /* Initialize a linebuffer for use */ | |
192 | ||
193 | void | |
194 | init_linebuffer (linebuffer) | |
195 | struct linebuffer *linebuffer; | |
196 | { | |
197 | linebuffer->size = INITIAL_LINE_SIZE; | |
198 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
199 | } | |
200 | ||
201 | /* Read a line of text from `stream' into `linebuffer'. | |
202 | * Return the length of the line. | |
203 | */ | |
204 | ||
205 | long | |
206 | readline (linebuffer, stream) | |
207 | struct linebuffer *linebuffer; | |
208 | FILE *stream; | |
209 | { | |
210 | char *buffer = linebuffer->buffer; | |
211 | char *p = linebuffer->buffer; | |
212 | char *end = p + linebuffer->size; | |
213 | ||
214 | while (true) | |
215 | { | |
216 | int c = getc (stream); | |
217 | if (p == end) | |
218 | { | |
219 | linebuffer->size *= 2; | |
220 | buffer = ((char *) xrealloc (buffer, linebuffer->size)); | |
f3309b68 | 221 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 222 | end = buffer + linebuffer->size; |
6b3ee98a RS |
223 | linebuffer->buffer = buffer; |
224 | } | |
225 | if (c < 0 || c == '\n') | |
226 | { | |
227 | *p = 0; | |
228 | break; | |
229 | } | |
230 | *p++ = c; | |
231 | } | |
232 | ||
233 | return p - buffer; | |
234 | } | |
235 | \f | |
3d23b985 RS |
236 | /* Extract a colon-terminated keyword from the string FIELD. |
237 | Return that keyword as a string stored in a static buffer. | |
238 | Store the address of the rest of the string into *REST. | |
239 | ||
240 | If there is no keyword, return NULL and don't alter *REST. */ | |
241 | ||
6b3ee98a RS |
242 | char * |
243 | get_keyword (field, rest) | |
244 | register char *field; | |
245 | char **rest; | |
246 | { | |
247 | static char keyword[KEYWORD_SIZE]; | |
248 | register char *ptr; | |
249 | register char c; | |
250 | ||
251 | ptr = &keyword[0]; | |
252 | c = *field++; | |
3d23b985 | 253 | if (isspace (c) || c == ':') |
6b3ee98a | 254 | return ((char *) NULL); |
3d23b985 RS |
255 | *ptr++ = (islower (c) ? toupper (c) : c); |
256 | while (((c = *field++) != ':') && ! isspace (c)) | |
257 | *ptr++ = (islower (c) ? toupper (c) : c); | |
6b3ee98a | 258 | *ptr++ = '\0'; |
3d23b985 RS |
259 | while (isspace (c)) |
260 | c = *field++; | |
261 | if (c != ':') | |
262 | return ((char *) NULL); | |
6b3ee98a RS |
263 | *rest = field; |
264 | return &keyword[0]; | |
265 | } | |
266 | ||
3d23b985 RS |
267 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
268 | ||
6b3ee98a RS |
269 | boolean |
270 | has_keyword (field) | |
271 | char *field; | |
272 | { | |
273 | char *ignored; | |
274 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
275 | } | |
276 | ||
3d23b985 RS |
277 | /* Store the string FIELD, followed by any lines in THE_LIST, |
278 | into the buffer WHERE. | |
279 | Concatenate lines, putting just a space between them. | |
280 | Delete everything contained in parentheses. | |
281 | When a recipient name contains <...>, we discard | |
282 | everything except what is inside the <...>. | |
283 | ||
284 | We don't pay attention to overflowing WHERE; | |
285 | the caller has to make it big enough. */ | |
286 | ||
6b3ee98a RS |
287 | char * |
288 | add_field (the_list, field, where) | |
289 | line_list the_list; | |
290 | register char *field, *where; | |
291 | { | |
292 | register char c; | |
293 | while (true) | |
294 | { | |
3d23b985 RS |
295 | char *this_recipient_where; |
296 | int in_quotes = 0; | |
297 | ||
6b3ee98a | 298 | *where++ = ' '; |
3d23b985 RS |
299 | this_recipient_where = where; |
300 | ||
6b3ee98a RS |
301 | while ((c = *field++) != '\0') |
302 | { | |
3d23b985 RS |
303 | if (c == '\\') |
304 | *where++ = c; | |
305 | else if (c == '"') | |
306 | { | |
307 | in_quotes = ! in_quotes; | |
308 | *where++ = c; | |
309 | } | |
310 | else if (in_quotes) | |
311 | *where++ = c; | |
312 | else if (c == '(') | |
6b3ee98a RS |
313 | { |
314 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
315 | if (! (*field++)) break; /* no close */ |
316 | continue; | |
6b3ee98a | 317 | } |
3d23b985 RS |
318 | else if (c == ',') |
319 | { | |
320 | *where++ = ' '; | |
321 | /* When we get to the end of one recipient, | |
322 | don't discard it if the next one has <...>. */ | |
323 | this_recipient_where = where; | |
324 | } | |
325 | else if (c == '<') | |
326 | /* Discard everything we got before the `<'. */ | |
327 | where = this_recipient_where; | |
328 | else if (c == '>') | |
329 | /* Discard the rest of this name that follows the `>'. */ | |
330 | { | |
331 | while (*field && *field != ',') ++field; | |
332 | if (! (*field++)) break; /* no comma */ | |
333 | continue; | |
334 | } | |
335 | else | |
336 | *where++ = c; | |
6b3ee98a RS |
337 | } |
338 | if (the_list == NIL) break; | |
339 | field = the_list->string; | |
340 | the_list = the_list->continuation; | |
341 | } | |
342 | return where; | |
343 | } | |
344 | \f | |
345 | line_list | |
346 | make_file_preface () | |
347 | { | |
348 | char *the_string, *temp; | |
349 | long idiotic_interface; | |
350 | long prefix_length; | |
351 | long user_length; | |
352 | long date_length; | |
353 | line_list result; | |
354 | ||
355 | prefix_length = strlen (FROM_PREFIX); | |
356 | time (&idiotic_interface); | |
357 | the_date = ctime (&idiotic_interface); | |
358 | /* the_date has an unwanted newline at the end */ | |
359 | date_length = strlen (the_date) - 1; | |
360 | the_date[date_length] = '\0'; | |
361 | temp = cuserid ((char *) NULL); | |
362 | user_length = strlen (temp); | |
363 | the_user = alloc_string (user_length + 1); | |
364 | strcpy (the_user, temp); | |
365 | the_string = alloc_string (3 + prefix_length + | |
366 | user_length + | |
367 | date_length); | |
368 | temp = the_string; | |
369 | strcpy (temp, FROM_PREFIX); | |
370 | temp = &temp[prefix_length]; | |
371 | *temp++ = ' '; | |
372 | strcpy (temp, the_user); | |
373 | temp = &temp[user_length]; | |
374 | *temp++ = ' '; | |
375 | strcpy (temp, the_date); | |
376 | result = new_list (); | |
377 | result->string = the_string; | |
378 | result->continuation = ((line_list) NULL); | |
379 | return result; | |
380 | } | |
381 | ||
382 | void | |
383 | write_line_list (the_list, the_stream) | |
384 | register line_list the_list; | |
385 | FILE *the_stream; | |
386 | { | |
387 | for ( ; | |
388 | the_list != ((line_list) NULL) ; | |
389 | the_list = the_list->continuation) | |
390 | { | |
391 | fputs (the_list->string, the_stream); | |
392 | putc ('\n', the_stream); | |
393 | } | |
394 | return; | |
395 | } | |
396 | \f | |
397 | int | |
398 | close_the_streams () | |
399 | { | |
400 | register stream_list rem; | |
401 | for (rem = the_streams; | |
402 | rem != ((stream_list) NULL); | |
403 | rem = rem->rest_streams) | |
404 | no_problems = (no_problems && | |
405 | ((*rem->action) (rem->handle) == 0)); | |
406 | the_streams = ((stream_list) NULL); | |
407 | return (no_problems ? 0 : 1); | |
408 | } | |
409 | ||
410 | void | |
411 | add_a_stream (the_stream, closing_action) | |
412 | FILE *the_stream; | |
413 | int (*closing_action)(); | |
414 | { | |
415 | stream_list old = the_streams; | |
416 | the_streams = new_stream (); | |
417 | the_streams->handle = the_stream; | |
418 | the_streams->action = closing_action; | |
419 | the_streams->rest_streams = old; | |
420 | return; | |
421 | } | |
422 | ||
423 | int | |
424 | my_fclose (the_file) | |
425 | FILE *the_file; | |
426 | { | |
427 | putc ('\n', the_file); | |
428 | fflush (the_file); | |
429 | return fclose (the_file); | |
430 | } | |
431 | ||
432 | boolean | |
433 | open_a_file (name) | |
434 | char *name; | |
435 | { | |
436 | FILE *the_stream = fopen (name, "a"); | |
437 | if (the_stream != ((FILE *) NULL)) | |
438 | { | |
439 | add_a_stream (the_stream, my_fclose); | |
440 | if (the_user == ((char *) NULL)) | |
441 | file_preface = make_file_preface (); | |
442 | write_line_list (file_preface, the_stream); | |
443 | return true; | |
444 | } | |
445 | return false; | |
446 | } | |
447 | ||
448 | void | |
449 | put_string (s) | |
450 | char *s; | |
451 | { | |
452 | register stream_list rem; | |
453 | for (rem = the_streams; | |
454 | rem != ((stream_list) NULL); | |
455 | rem = rem->rest_streams) | |
456 | fputs (s, rem->handle); | |
457 | return; | |
458 | } | |
459 | ||
460 | void | |
a492a5b9 RS |
461 | put_line (string) |
462 | char *string; | |
6b3ee98a RS |
463 | { |
464 | register stream_list rem; | |
465 | for (rem = the_streams; | |
466 | rem != ((stream_list) NULL); | |
467 | rem = rem->rest_streams) | |
468 | { | |
a492a5b9 RS |
469 | char *s = string; |
470 | int column = 0; | |
471 | ||
472 | /* Divide STRING into lines. */ | |
473 | while (*s != 0) | |
474 | { | |
475 | char *breakpos; | |
476 | ||
fbffe7d9 | 477 | /* Find the last char that fits. */ |
a492a5b9 RS |
478 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
479 | { | |
480 | if (*breakpos == '\t') | |
481 | column += 8; | |
482 | else | |
483 | column++; | |
484 | } | |
fbffe7d9 RS |
485 | /* If we didn't reach end of line, break the line. */ |
486 | if (*breakpos) | |
a492a5b9 | 487 | { |
fbffe7d9 RS |
488 | /* Back up to just after the last comma that fits. */ |
489 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
490 | ||
491 | if (breakpos == s) | |
492 | { | |
493 | /* If no comma fits, move past the first address anyway. */ | |
494 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
495 | if (*breakpos != 0) | |
496 | /* Include the comma after it. */ | |
497 | ++breakpos; | |
498 | } | |
a492a5b9 RS |
499 | } |
500 | /* Output that much, then break the line. */ | |
501 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
502 | column = 8; |
503 | ||
504 | /* Skip whitespace and prepare to print more addresses. */ | |
505 | s = breakpos; | |
506 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
507 | if (*s != 0) |
508 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 509 | } |
6b3ee98a RS |
510 | putc ('\n', rem->handle); |
511 | } | |
512 | return; | |
513 | } | |
514 | \f | |
515 | #define mail_error error | |
516 | ||
3d23b985 RS |
517 | /* Handle an FCC field. FIELD is the text of the first line (after |
518 | the header name), and THE_LIST holds the continuation lines if any. | |
519 | Call open_a_file for each file. */ | |
520 | ||
6b3ee98a RS |
521 | void |
522 | setup_files (the_list, field) | |
523 | register line_list the_list; | |
524 | register char *field; | |
525 | { | |
526 | register char *start; | |
527 | register char c; | |
528 | while (true) | |
529 | { | |
3d23b985 RS |
530 | while (((c = *field) != '\0') |
531 | && (c == ' ' | |
532 | || c == '\t' | |
533 | || c == ',')) | |
6b3ee98a RS |
534 | field += 1; |
535 | if (c != '\0') | |
536 | { | |
537 | start = field; | |
3d23b985 RS |
538 | while (((c = *field) != '\0') |
539 | && c != ' ' | |
540 | && c != '\t' | |
541 | && c != ',') | |
6b3ee98a RS |
542 | field += 1; |
543 | *field = '\0'; | |
544 | if (!open_a_file (start)) | |
545 | mail_error ("Could not open file %s", start); | |
546 | *field = c; | |
547 | if (c != '\0') continue; | |
548 | } | |
3d23b985 RS |
549 | if (the_list == ((line_list) NULL)) |
550 | return; | |
6b3ee98a RS |
551 | field = the_list->string; |
552 | the_list = the_list->continuation; | |
553 | } | |
554 | } | |
555 | \f | |
3d23b985 RS |
556 | /* Compute the total size of all recipient names stored in THE_HEADER. |
557 | The result says how big to make the buffer to pass to parse_header. */ | |
558 | ||
6b3ee98a RS |
559 | int |
560 | args_size (the_header) | |
561 | header the_header; | |
562 | { | |
563 | register header old = the_header; | |
564 | register line_list rem; | |
565 | register int size = 0; | |
566 | do | |
567 | { | |
568 | char *field; | |
569 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
570 | if ((strcmp (keyword, "TO") == 0) |
571 | || (strcmp (keyword, "CC") == 0) | |
572 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
573 | { |
574 | size += 1 + strlen (field); | |
575 | for (rem = the_header->text->continuation; | |
576 | rem != NIL; | |
577 | rem = rem->continuation) | |
578 | size += 1 + strlen (rem->string); | |
579 | } | |
580 | the_header = the_header->next; | |
581 | } while (the_header != old); | |
582 | return size; | |
583 | } | |
584 | ||
3d23b985 RS |
585 | /* Scan the header described by the lists THE_HEADER, |
586 | and put all recipient names into the buffer WHERE. | |
587 | Precede each recipient name with a space. | |
588 | ||
589 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
590 | ||
6b3ee98a RS |
591 | parse_header (the_header, where) |
592 | header the_header; | |
593 | register char *where; | |
594 | { | |
595 | register header old = the_header; | |
596 | do | |
597 | { | |
598 | char *field; | |
599 | register char *keyword = get_keyword (the_header->text->string, &field); | |
600 | if (strcmp (keyword, "TO") == 0) | |
601 | where = add_field (the_header->text->continuation, field, where); | |
602 | else if (strcmp (keyword, "CC") == 0) | |
603 | where = add_field (the_header->text->continuation, field, where); | |
604 | else if (strcmp (keyword, "BCC") == 0) | |
605 | { | |
606 | where = add_field (the_header->text->continuation, field, where); | |
607 | the_header->previous->next = the_header->next; | |
608 | the_header->next->previous = the_header->previous; | |
609 | } | |
610 | else if (strcmp (keyword, "FCC") == 0) | |
611 | setup_files (the_header->text->continuation, field); | |
612 | the_header = the_header->next; | |
613 | } while (the_header != old); | |
614 | *where = '\0'; | |
615 | return; | |
616 | } | |
617 | \f | |
3d23b985 RS |
618 | /* Read lines from the input until we get a blank line. |
619 | Create a list of `header' objects, one for each header field, | |
620 | each of which points to a list of `line_list' objects, | |
621 | one for each line in that field. | |
622 | Continuation lines are grouped in the headers they continue. */ | |
623 | ||
6b3ee98a RS |
624 | header |
625 | read_header () | |
626 | { | |
627 | register header the_header = ((header) NULL); | |
628 | register line_list *next_line = ((line_list *) NULL); | |
629 | ||
630 | init_linebuffer (&lb); | |
631 | ||
632 | do | |
633 | { | |
634 | long length; | |
635 | register char *line; | |
636 | ||
637 | readline (&lb, stdin); | |
638 | line = lb.buffer; | |
639 | length = strlen (line); | |
640 | if (length == 0) break; | |
641 | ||
642 | if (has_keyword (line)) | |
643 | { | |
644 | register header old = the_header; | |
645 | the_header = new_header (); | |
646 | if (old == ((header) NULL)) | |
647 | { | |
648 | the_header->next = the_header; | |
649 | the_header->previous = the_header; | |
650 | } | |
651 | else | |
652 | { | |
653 | the_header->previous = old; | |
654 | the_header->next = old->next; | |
655 | old->next = the_header; | |
656 | } | |
657 | next_line = &(the_header->text); | |
658 | } | |
659 | ||
660 | if (next_line == ((line_list *) NULL)) | |
661 | { | |
662 | /* Not a valid header */ | |
663 | exit (1); | |
664 | } | |
665 | *next_line = new_list (); | |
666 | (*next_line)->string = alloc_string (length); | |
667 | strcpy (((*next_line)->string), line); | |
668 | next_line = &((*next_line)->continuation); | |
669 | *next_line = NIL; | |
670 | ||
671 | } while (true); | |
672 | ||
673 | return the_header->next; | |
674 | } | |
675 | \f | |
676 | void | |
677 | write_header (the_header) | |
678 | header the_header; | |
679 | { | |
680 | register header old = the_header; | |
681 | do | |
682 | { | |
683 | register line_list the_list; | |
684 | for (the_list = the_header->text; | |
685 | the_list != NIL; | |
686 | the_list = the_list->continuation) | |
687 | put_line (the_list->string); | |
688 | the_header = the_header->next; | |
689 | } while (the_header != old); | |
690 | put_line (""); | |
691 | return; | |
692 | } | |
693 | \f | |
694 | void | |
695 | main (argc, argv) | |
696 | int argc; | |
697 | char **argv; | |
698 | { | |
699 | char *command_line; | |
700 | header the_header; | |
701 | long name_length; | |
702 | char *mail_program_name; | |
703 | char buf[BUFLEN + 1]; | |
704 | register int size; | |
705 | FILE *the_pipe; | |
706 | ||
707 | extern char *getenv (); | |
708 | ||
709 | mail_program_name = getenv ("FAKEMAILER"); | |
710 | if (!(mail_program_name && *mail_program_name)) | |
711 | mail_program_name = MAIL_PROGRAM_NAME; | |
712 | name_length = strlen (mail_program_name); | |
713 | ||
714 | my_name = MY_NAME; | |
715 | the_streams = ((stream_list) NULL); | |
716 | the_date = ((char *) NULL); | |
717 | the_user = ((char *) NULL); | |
718 | ||
719 | the_header = read_header (); | |
720 | command_line = alloc_string (name_length + args_size (the_header)); | |
721 | strcpy (command_line, mail_program_name); | |
722 | parse_header (the_header, &command_line[name_length]); | |
723 | ||
724 | the_pipe = popen (command_line, "w"); | |
725 | if (the_pipe == ((FILE *) NULL)) | |
726 | fatal ("cannot open pipe to real mailer"); | |
727 | ||
728 | add_a_stream (the_pipe, pclose); | |
729 | ||
730 | write_header (the_header); | |
731 | ||
732 | /* Dump the message itself */ | |
733 | ||
734 | while (!feof (stdin)) | |
735 | { | |
736 | size = fread (buf, 1, BUFLEN, stdin); | |
737 | buf[size] = '\0'; | |
738 | put_string (buf); | |
739 | } | |
740 | ||
741 | exit (close_the_streams ()); | |
742 | } | |
743 | ||
26528bbc | 744 | #endif /* not MSDOS */ |
6b3ee98a | 745 | #endif /* not BSD 4.2 (or newer) */ |