Commit | Line | Data |
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6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
4ee9629e | 2 | Copyright (C) 1985, 1994, 1999 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 | 20 | |
6b3ee98a | 21 | #define NO_SHORTNAMES |
a33c19b1 | 22 | #define _XOPEN_SOURCE 500 /* for cuserid */ |
594aa066 PJ |
23 | |
24 | #ifdef HAVE_CONFIG_H | |
4838e624 | 25 | #include <config.h> |
594aa066 | 26 | #endif |
6b3ee98a | 27 | |
e397a017 | 28 | #if defined (BSD_SYSTEM) && !defined (BSD4_1) && !defined (USE_FAKEMAIL) |
6b3ee98a | 29 | /* This program isnot used in BSD, so just avoid loader complaints. */ |
d0dff6e5 | 30 | int |
6b3ee98a RS |
31 | main () |
32 | { | |
0d1841a6 | 33 | return 0; |
6b3ee98a RS |
34 | } |
35 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 36 | #ifdef MSDOS |
d0dff6e5 | 37 | int |
26528bbc RS |
38 | main () |
39 | { | |
0d1841a6 | 40 | return 0; |
26528bbc RS |
41 | } |
42 | #else /* not MSDOS */ | |
6b3ee98a RS |
43 | /* This conditional contains all the rest of the file. */ |
44 | ||
45 | /* These are defined in config in some versions. */ | |
46 | ||
47 | #ifdef static | |
48 | #undef static | |
49 | #endif | |
50 | ||
7c544420 RS |
51 | #ifdef WINDOWSNT |
52 | #include "ntlib.h" | |
53 | #endif | |
54 | ||
6b3ee98a RS |
55 | #include <stdio.h> |
56 | #include <string.h> | |
57 | #include <ctype.h> | |
58 | #include <time.h> | |
59 | #include <pwd.h> | |
7543028e RS |
60 | |
61 | /* This is to declare cuserid. */ | |
62 | #ifdef HAVE_UNISTD_H | |
63 | #include <unistd.h> | |
64 | #endif | |
6b3ee98a RS |
65 | \f |
66 | /* Type definitions */ | |
67 | ||
68 | #define boolean int | |
69 | #define true 1 | |
70 | #define false 0 | |
71 | ||
72 | /* Various lists */ | |
73 | ||
74 | struct line_record | |
75 | { | |
76 | char *string; | |
77 | struct line_record *continuation; | |
78 | }; | |
79 | typedef struct line_record *line_list; | |
80 | ||
81 | struct header_record | |
82 | { | |
83 | line_list text; | |
84 | struct header_record *next; | |
85 | struct header_record *previous; | |
86 | }; | |
87 | typedef struct header_record *header; | |
594aa066 | 88 | |
6b3ee98a RS |
89 | struct stream_record |
90 | { | |
91 | FILE *handle; | |
92 | int (*action)(); | |
93 | struct stream_record *rest_streams; | |
94 | }; | |
95 | typedef struct stream_record *stream_list; | |
96 | ||
97 | /* A `struct linebuffer' is a structure which holds a line of text. | |
98 | * `readline' reads a line from a stream into a linebuffer | |
99 | * and works regardless of the length of the line. | |
100 | */ | |
101 | ||
102 | struct linebuffer | |
103 | { | |
104 | long size; | |
105 | char *buffer; | |
106 | }; | |
107 | ||
108 | struct linebuffer lb; | |
109 | ||
110 | #define new_list() \ | |
111 | ((line_list) xmalloc (sizeof (struct line_record))) | |
112 | #define new_header() \ | |
113 | ((header) xmalloc (sizeof (struct header_record))) | |
114 | #define new_stream() \ | |
115 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
116 | #define alloc_string(nchars) \ | |
117 | ((char *) xmalloc ((nchars) + 1)) | |
118 | \f | |
119 | /* Global declarations */ | |
120 | ||
121 | #define BUFLEN 1024 | |
122 | #define KEYWORD_SIZE 256 | |
123 | #define FROM_PREFIX "From" | |
124 | #define MY_NAME "fakemail" | |
125 | #define NIL ((line_list) NULL) | |
126 | #define INITIAL_LINE_SIZE 200 | |
127 | ||
128 | #ifndef MAIL_PROGRAM_NAME | |
129 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
130 | #endif | |
131 | ||
132 | static char *my_name; | |
133 | static char *the_date; | |
134 | static char *the_user; | |
135 | static line_list file_preface; | |
136 | static stream_list the_streams; | |
137 | static boolean no_problems = true; | |
138 | ||
139 | extern FILE *popen (); | |
140 | extern int fclose (), pclose (); | |
6b3ee98a RS |
141 | |
142 | #ifdef CURRENT_USER | |
143 | extern struct passwd *getpwuid (); | |
144 | extern unsigned short geteuid (); | |
145 | static struct passwd *my_entry; | |
146 | #define cuserid(s) \ | |
147 | (my_entry = getpwuid (((int) geteuid ())), \ | |
148 | my_entry->pw_name) | |
149 | #endif | |
150 | \f | |
151 | /* Utilities */ | |
152 | ||
153 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
154 | ||
155 | static void | |
156 | error (s1, s2) | |
157 | char *s1, *s2; | |
158 | { | |
159 | printf ("%s: ", my_name); | |
160 | printf (s1, s2); | |
161 | printf ("\n"); | |
162 | no_problems = false; | |
163 | } | |
164 | ||
165 | /* Print error message and exit. */ | |
166 | ||
167 | static void | |
168 | fatal (s1, s2) | |
169 | char *s1, *s2; | |
170 | { | |
171 | error (s1, s2); | |
65396510 | 172 | exit (EXIT_FAILURE); |
6b3ee98a RS |
173 | } |
174 | ||
175 | /* Like malloc but get fatal error if memory is exhausted. */ | |
176 | ||
65119039 | 177 | static long * |
6b3ee98a RS |
178 | xmalloc (size) |
179 | int size; | |
180 | { | |
65119039 RS |
181 | long *result = (long *) malloc (((unsigned) size)); |
182 | if (result == ((long *) NULL)) | |
6b3ee98a RS |
183 | fatal ("virtual memory exhausted", 0); |
184 | return result; | |
185 | } | |
186 | ||
65119039 | 187 | static long * |
6b3ee98a | 188 | xrealloc (ptr, size) |
65119039 | 189 | long *ptr; |
6b3ee98a RS |
190 | int size; |
191 | { | |
65119039 | 192 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 193 | if (result == ((long *) NULL)) |
6b3ee98a RS |
194 | fatal ("virtual memory exhausted"); |
195 | return result; | |
196 | } | |
197 | \f | |
198 | /* Initialize a linebuffer for use */ | |
199 | ||
200 | void | |
201 | init_linebuffer (linebuffer) | |
202 | struct linebuffer *linebuffer; | |
203 | { | |
204 | linebuffer->size = INITIAL_LINE_SIZE; | |
205 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
206 | } | |
207 | ||
208 | /* Read a line of text from `stream' into `linebuffer'. | |
594aa066 | 209 | Return the length of the line. */ |
6b3ee98a RS |
210 | |
211 | long | |
212 | readline (linebuffer, stream) | |
213 | struct linebuffer *linebuffer; | |
214 | FILE *stream; | |
215 | { | |
216 | char *buffer = linebuffer->buffer; | |
217 | char *p = linebuffer->buffer; | |
218 | char *end = p + linebuffer->size; | |
219 | ||
220 | while (true) | |
221 | { | |
222 | int c = getc (stream); | |
223 | if (p == end) | |
224 | { | |
225 | linebuffer->size *= 2; | |
26df3bb0 | 226 | buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size)); |
f3309b68 | 227 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 228 | end = buffer + linebuffer->size; |
6b3ee98a RS |
229 | linebuffer->buffer = buffer; |
230 | } | |
231 | if (c < 0 || c == '\n') | |
232 | { | |
233 | *p = 0; | |
234 | break; | |
235 | } | |
236 | *p++ = c; | |
237 | } | |
238 | ||
239 | return p - buffer; | |
240 | } | |
241 | \f | |
3d23b985 RS |
242 | /* Extract a colon-terminated keyword from the string FIELD. |
243 | Return that keyword as a string stored in a static buffer. | |
244 | Store the address of the rest of the string into *REST. | |
245 | ||
246 | If there is no keyword, return NULL and don't alter *REST. */ | |
247 | ||
6b3ee98a RS |
248 | char * |
249 | get_keyword (field, rest) | |
250 | register char *field; | |
251 | char **rest; | |
252 | { | |
253 | static char keyword[KEYWORD_SIZE]; | |
254 | register char *ptr; | |
859cbb40 | 255 | register int c; |
6b3ee98a RS |
256 | |
257 | ptr = &keyword[0]; | |
859cbb40 | 258 | c = (unsigned char) *field++; |
3d23b985 | 259 | if (isspace (c) || c == ':') |
6b3ee98a | 260 | return ((char *) NULL); |
3d23b985 | 261 | *ptr++ = (islower (c) ? toupper (c) : c); |
859cbb40 | 262 | while (((c = (unsigned char) *field++) != ':') && ! isspace (c)) |
3d23b985 | 263 | *ptr++ = (islower (c) ? toupper (c) : c); |
6b3ee98a | 264 | *ptr++ = '\0'; |
3d23b985 | 265 | while (isspace (c)) |
859cbb40 | 266 | c = (unsigned char) *field++; |
3d23b985 RS |
267 | if (c != ':') |
268 | return ((char *) NULL); | |
6b3ee98a RS |
269 | *rest = field; |
270 | return &keyword[0]; | |
271 | } | |
272 | ||
3d23b985 RS |
273 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
274 | ||
6b3ee98a RS |
275 | boolean |
276 | has_keyword (field) | |
277 | char *field; | |
278 | { | |
279 | char *ignored; | |
280 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
281 | } | |
282 | ||
3d23b985 RS |
283 | /* Store the string FIELD, followed by any lines in THE_LIST, |
284 | into the buffer WHERE. | |
285 | Concatenate lines, putting just a space between them. | |
286 | Delete everything contained in parentheses. | |
287 | When a recipient name contains <...>, we discard | |
288 | everything except what is inside the <...>. | |
289 | ||
290 | We don't pay attention to overflowing WHERE; | |
291 | the caller has to make it big enough. */ | |
292 | ||
6b3ee98a RS |
293 | char * |
294 | add_field (the_list, field, where) | |
295 | line_list the_list; | |
296 | register char *field, *where; | |
297 | { | |
298 | register char c; | |
299 | while (true) | |
300 | { | |
3d23b985 RS |
301 | char *this_recipient_where; |
302 | int in_quotes = 0; | |
303 | ||
6b3ee98a | 304 | *where++ = ' '; |
3d23b985 RS |
305 | this_recipient_where = where; |
306 | ||
6b3ee98a RS |
307 | while ((c = *field++) != '\0') |
308 | { | |
3d23b985 RS |
309 | if (c == '\\') |
310 | *where++ = c; | |
311 | else if (c == '"') | |
312 | { | |
313 | in_quotes = ! in_quotes; | |
314 | *where++ = c; | |
315 | } | |
316 | else if (in_quotes) | |
317 | *where++ = c; | |
318 | else if (c == '(') | |
6b3ee98a RS |
319 | { |
320 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
321 | if (! (*field++)) break; /* no close */ |
322 | continue; | |
6b3ee98a | 323 | } |
3d23b985 RS |
324 | else if (c == ',') |
325 | { | |
326 | *where++ = ' '; | |
327 | /* When we get to the end of one recipient, | |
328 | don't discard it if the next one has <...>. */ | |
329 | this_recipient_where = where; | |
330 | } | |
331 | else if (c == '<') | |
332 | /* Discard everything we got before the `<'. */ | |
333 | where = this_recipient_where; | |
334 | else if (c == '>') | |
335 | /* Discard the rest of this name that follows the `>'. */ | |
336 | { | |
337 | while (*field && *field != ',') ++field; | |
338 | if (! (*field++)) break; /* no comma */ | |
339 | continue; | |
340 | } | |
341 | else | |
342 | *where++ = c; | |
6b3ee98a RS |
343 | } |
344 | if (the_list == NIL) break; | |
345 | field = the_list->string; | |
346 | the_list = the_list->continuation; | |
347 | } | |
348 | return where; | |
349 | } | |
350 | \f | |
351 | line_list | |
352 | make_file_preface () | |
353 | { | |
354 | char *the_string, *temp; | |
355 | long idiotic_interface; | |
356 | long prefix_length; | |
357 | long user_length; | |
358 | long date_length; | |
359 | line_list result; | |
360 | ||
361 | prefix_length = strlen (FROM_PREFIX); | |
362 | time (&idiotic_interface); | |
363 | the_date = ctime (&idiotic_interface); | |
364 | /* the_date has an unwanted newline at the end */ | |
365 | date_length = strlen (the_date) - 1; | |
366 | the_date[date_length] = '\0'; | |
367 | temp = cuserid ((char *) NULL); | |
368 | user_length = strlen (temp); | |
369 | the_user = alloc_string (user_length + 1); | |
370 | strcpy (the_user, temp); | |
7543028e RS |
371 | the_string = alloc_string (3 + prefix_length |
372 | + user_length | |
373 | + date_length); | |
6b3ee98a RS |
374 | temp = the_string; |
375 | strcpy (temp, FROM_PREFIX); | |
376 | temp = &temp[prefix_length]; | |
377 | *temp++ = ' '; | |
378 | strcpy (temp, the_user); | |
379 | temp = &temp[user_length]; | |
380 | *temp++ = ' '; | |
381 | strcpy (temp, the_date); | |
382 | result = new_list (); | |
383 | result->string = the_string; | |
384 | result->continuation = ((line_list) NULL); | |
385 | return result; | |
386 | } | |
387 | ||
388 | void | |
389 | write_line_list (the_list, the_stream) | |
390 | register line_list the_list; | |
391 | FILE *the_stream; | |
392 | { | |
393 | for ( ; | |
394 | the_list != ((line_list) NULL) ; | |
395 | the_list = the_list->continuation) | |
396 | { | |
397 | fputs (the_list->string, the_stream); | |
398 | putc ('\n', the_stream); | |
399 | } | |
400 | return; | |
401 | } | |
402 | \f | |
403 | int | |
404 | close_the_streams () | |
405 | { | |
406 | register stream_list rem; | |
407 | for (rem = the_streams; | |
408 | rem != ((stream_list) NULL); | |
409 | rem = rem->rest_streams) | |
410 | no_problems = (no_problems && | |
411 | ((*rem->action) (rem->handle) == 0)); | |
412 | the_streams = ((stream_list) NULL); | |
65396510 | 413 | return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE); |
6b3ee98a RS |
414 | } |
415 | ||
416 | void | |
417 | add_a_stream (the_stream, closing_action) | |
418 | FILE *the_stream; | |
419 | int (*closing_action)(); | |
420 | { | |
421 | stream_list old = the_streams; | |
422 | the_streams = new_stream (); | |
423 | the_streams->handle = the_stream; | |
424 | the_streams->action = closing_action; | |
425 | the_streams->rest_streams = old; | |
426 | return; | |
427 | } | |
428 | ||
429 | int | |
430 | my_fclose (the_file) | |
431 | FILE *the_file; | |
432 | { | |
433 | putc ('\n', the_file); | |
434 | fflush (the_file); | |
435 | return fclose (the_file); | |
436 | } | |
437 | ||
438 | boolean | |
439 | open_a_file (name) | |
440 | char *name; | |
441 | { | |
442 | FILE *the_stream = fopen (name, "a"); | |
443 | if (the_stream != ((FILE *) NULL)) | |
444 | { | |
445 | add_a_stream (the_stream, my_fclose); | |
446 | if (the_user == ((char *) NULL)) | |
447 | file_preface = make_file_preface (); | |
448 | write_line_list (file_preface, the_stream); | |
449 | return true; | |
450 | } | |
451 | return false; | |
452 | } | |
453 | ||
454 | void | |
455 | put_string (s) | |
456 | char *s; | |
457 | { | |
458 | register stream_list rem; | |
459 | for (rem = the_streams; | |
460 | rem != ((stream_list) NULL); | |
461 | rem = rem->rest_streams) | |
462 | fputs (s, rem->handle); | |
463 | return; | |
464 | } | |
465 | ||
466 | void | |
a492a5b9 RS |
467 | put_line (string) |
468 | char *string; | |
6b3ee98a RS |
469 | { |
470 | register stream_list rem; | |
471 | for (rem = the_streams; | |
472 | rem != ((stream_list) NULL); | |
473 | rem = rem->rest_streams) | |
474 | { | |
a492a5b9 RS |
475 | char *s = string; |
476 | int column = 0; | |
477 | ||
478 | /* Divide STRING into lines. */ | |
479 | while (*s != 0) | |
480 | { | |
481 | char *breakpos; | |
482 | ||
fbffe7d9 | 483 | /* Find the last char that fits. */ |
a492a5b9 RS |
484 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
485 | { | |
486 | if (*breakpos == '\t') | |
487 | column += 8; | |
488 | else | |
489 | column++; | |
490 | } | |
fbffe7d9 RS |
491 | /* If we didn't reach end of line, break the line. */ |
492 | if (*breakpos) | |
a492a5b9 | 493 | { |
fbffe7d9 RS |
494 | /* Back up to just after the last comma that fits. */ |
495 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
496 | ||
497 | if (breakpos == s) | |
498 | { | |
499 | /* If no comma fits, move past the first address anyway. */ | |
500 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
501 | if (*breakpos != 0) | |
502 | /* Include the comma after it. */ | |
503 | ++breakpos; | |
504 | } | |
a492a5b9 RS |
505 | } |
506 | /* Output that much, then break the line. */ | |
507 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
508 | column = 8; |
509 | ||
510 | /* Skip whitespace and prepare to print more addresses. */ | |
511 | s = breakpos; | |
512 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
513 | if (*s != 0) |
514 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 515 | } |
6b3ee98a RS |
516 | putc ('\n', rem->handle); |
517 | } | |
518 | return; | |
519 | } | |
520 | \f | |
521 | #define mail_error error | |
522 | ||
3d23b985 RS |
523 | /* Handle an FCC field. FIELD is the text of the first line (after |
524 | the header name), and THE_LIST holds the continuation lines if any. | |
525 | Call open_a_file for each file. */ | |
526 | ||
6b3ee98a RS |
527 | void |
528 | setup_files (the_list, field) | |
529 | register line_list the_list; | |
530 | register char *field; | |
531 | { | |
532 | register char *start; | |
533 | register char c; | |
534 | while (true) | |
535 | { | |
3d23b985 RS |
536 | while (((c = *field) != '\0') |
537 | && (c == ' ' | |
538 | || c == '\t' | |
539 | || c == ',')) | |
6b3ee98a RS |
540 | field += 1; |
541 | if (c != '\0') | |
542 | { | |
543 | start = field; | |
3d23b985 RS |
544 | while (((c = *field) != '\0') |
545 | && c != ' ' | |
546 | && c != '\t' | |
547 | && c != ',') | |
6b3ee98a RS |
548 | field += 1; |
549 | *field = '\0'; | |
550 | if (!open_a_file (start)) | |
551 | mail_error ("Could not open file %s", start); | |
552 | *field = c; | |
553 | if (c != '\0') continue; | |
554 | } | |
3d23b985 RS |
555 | if (the_list == ((line_list) NULL)) |
556 | return; | |
6b3ee98a RS |
557 | field = the_list->string; |
558 | the_list = the_list->continuation; | |
559 | } | |
560 | } | |
561 | \f | |
3d23b985 RS |
562 | /* Compute the total size of all recipient names stored in THE_HEADER. |
563 | The result says how big to make the buffer to pass to parse_header. */ | |
564 | ||
6b3ee98a RS |
565 | int |
566 | args_size (the_header) | |
567 | header the_header; | |
568 | { | |
569 | register header old = the_header; | |
570 | register line_list rem; | |
571 | register int size = 0; | |
572 | do | |
573 | { | |
574 | char *field; | |
575 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
576 | if ((strcmp (keyword, "TO") == 0) |
577 | || (strcmp (keyword, "CC") == 0) | |
578 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
579 | { |
580 | size += 1 + strlen (field); | |
581 | for (rem = the_header->text->continuation; | |
582 | rem != NIL; | |
583 | rem = rem->continuation) | |
584 | size += 1 + strlen (rem->string); | |
585 | } | |
586 | the_header = the_header->next; | |
587 | } while (the_header != old); | |
588 | return size; | |
589 | } | |
590 | ||
3d23b985 RS |
591 | /* Scan the header described by the lists THE_HEADER, |
592 | and put all recipient names into the buffer WHERE. | |
593 | Precede each recipient name with a space. | |
594 | ||
595 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
596 | ||
cb58ebb0 | 597 | void |
6b3ee98a RS |
598 | parse_header (the_header, where) |
599 | header the_header; | |
600 | register char *where; | |
601 | { | |
602 | register header old = the_header; | |
603 | do | |
604 | { | |
605 | char *field; | |
606 | register char *keyword = get_keyword (the_header->text->string, &field); | |
607 | if (strcmp (keyword, "TO") == 0) | |
608 | where = add_field (the_header->text->continuation, field, where); | |
609 | else if (strcmp (keyword, "CC") == 0) | |
610 | where = add_field (the_header->text->continuation, field, where); | |
611 | else if (strcmp (keyword, "BCC") == 0) | |
612 | { | |
613 | where = add_field (the_header->text->continuation, field, where); | |
614 | the_header->previous->next = the_header->next; | |
615 | the_header->next->previous = the_header->previous; | |
616 | } | |
617 | else if (strcmp (keyword, "FCC") == 0) | |
618 | setup_files (the_header->text->continuation, field); | |
619 | the_header = the_header->next; | |
620 | } while (the_header != old); | |
621 | *where = '\0'; | |
622 | return; | |
623 | } | |
594aa066 | 624 | \f |
3d23b985 RS |
625 | /* Read lines from the input until we get a blank line. |
626 | Create a list of `header' objects, one for each header field, | |
627 | each of which points to a list of `line_list' objects, | |
628 | one for each line in that field. | |
629 | Continuation lines are grouped in the headers they continue. */ | |
594aa066 | 630 | |
6b3ee98a RS |
631 | header |
632 | read_header () | |
633 | { | |
634 | register header the_header = ((header) NULL); | |
635 | register line_list *next_line = ((line_list *) NULL); | |
636 | ||
637 | init_linebuffer (&lb); | |
638 | ||
639 | do | |
640 | { | |
641 | long length; | |
642 | register char *line; | |
643 | ||
644 | readline (&lb, stdin); | |
645 | line = lb.buffer; | |
646 | length = strlen (line); | |
647 | if (length == 0) break; | |
648 | ||
649 | if (has_keyword (line)) | |
650 | { | |
651 | register header old = the_header; | |
652 | the_header = new_header (); | |
653 | if (old == ((header) NULL)) | |
654 | { | |
655 | the_header->next = the_header; | |
656 | the_header->previous = the_header; | |
657 | } | |
658 | else | |
659 | { | |
660 | the_header->previous = old; | |
661 | the_header->next = old->next; | |
662 | old->next = the_header; | |
663 | } | |
664 | next_line = &(the_header->text); | |
665 | } | |
666 | ||
667 | if (next_line == ((line_list *) NULL)) | |
668 | { | |
669 | /* Not a valid header */ | |
65396510 | 670 | exit (EXIT_FAILURE); |
6b3ee98a RS |
671 | } |
672 | *next_line = new_list (); | |
673 | (*next_line)->string = alloc_string (length); | |
674 | strcpy (((*next_line)->string), line); | |
675 | next_line = &((*next_line)->continuation); | |
676 | *next_line = NIL; | |
677 | ||
678 | } while (true); | |
679 | ||
680 | return the_header->next; | |
681 | } | |
682 | \f | |
683 | void | |
684 | write_header (the_header) | |
685 | header the_header; | |
686 | { | |
687 | register header old = the_header; | |
688 | do | |
689 | { | |
690 | register line_list the_list; | |
691 | for (the_list = the_header->text; | |
692 | the_list != NIL; | |
693 | the_list = the_list->continuation) | |
694 | put_line (the_list->string); | |
695 | the_header = the_header->next; | |
696 | } while (the_header != old); | |
697 | put_line (""); | |
698 | return; | |
699 | } | |
700 | \f | |
d0dff6e5 | 701 | int |
6b3ee98a RS |
702 | main (argc, argv) |
703 | int argc; | |
704 | char **argv; | |
705 | { | |
706 | char *command_line; | |
707 | header the_header; | |
708 | long name_length; | |
709 | char *mail_program_name; | |
710 | char buf[BUFLEN + 1]; | |
711 | register int size; | |
712 | FILE *the_pipe; | |
713 | ||
714 | extern char *getenv (); | |
715 | ||
716 | mail_program_name = getenv ("FAKEMAILER"); | |
717 | if (!(mail_program_name && *mail_program_name)) | |
718 | mail_program_name = MAIL_PROGRAM_NAME; | |
719 | name_length = strlen (mail_program_name); | |
720 | ||
721 | my_name = MY_NAME; | |
722 | the_streams = ((stream_list) NULL); | |
723 | the_date = ((char *) NULL); | |
724 | the_user = ((char *) NULL); | |
725 | ||
726 | the_header = read_header (); | |
727 | command_line = alloc_string (name_length + args_size (the_header)); | |
728 | strcpy (command_line, mail_program_name); | |
729 | parse_header (the_header, &command_line[name_length]); | |
594aa066 | 730 | |
6b3ee98a RS |
731 | the_pipe = popen (command_line, "w"); |
732 | if (the_pipe == ((FILE *) NULL)) | |
733 | fatal ("cannot open pipe to real mailer"); | |
734 | ||
735 | add_a_stream (the_pipe, pclose); | |
736 | ||
737 | write_header (the_header); | |
738 | ||
739 | /* Dump the message itself */ | |
740 | ||
741 | while (!feof (stdin)) | |
742 | { | |
743 | size = fread (buf, 1, BUFLEN, stdin); | |
744 | buf[size] = '\0'; | |
745 | put_string (buf); | |
746 | } | |
747 | ||
748 | exit (close_the_streams ()); | |
749 | } | |
750 | ||
26528bbc | 751 | #endif /* not MSDOS */ |
6b3ee98a | 752 | #endif /* not BSD 4.2 (or newer) */ |
ab5796a9 MB |
753 | |
754 | /* arch-tag: acb0afa6-315a-4c5b-b9e3-def5725c8783 | |
755 | (do not change this comment) */ | |
65396510 TTN |
756 | |
757 | /* fakemail.c ends here */ |