Commit | Line | Data |
---|---|---|
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 | ||
cb58ebb0 AS |
22 | /* This is needed to get the declaration of cuserid in GNU libc. */ |
23 | #define _XOPEN_SOURCE 1 | |
24 | ||
6b3ee98a | 25 | #define NO_SHORTNAMES |
18160b98 | 26 | #include <../src/config.h> |
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 | ||
51 | #ifdef read | |
52 | #undef read | |
53 | #undef write | |
54 | #undef open | |
55 | #undef close | |
56 | #endif | |
57 | ||
7c544420 RS |
58 | #ifdef WINDOWSNT |
59 | #include "ntlib.h" | |
60 | #endif | |
61 | ||
6b3ee98a RS |
62 | #include <stdio.h> |
63 | #include <string.h> | |
64 | #include <ctype.h> | |
65 | #include <time.h> | |
66 | #include <pwd.h> | |
7543028e RS |
67 | |
68 | /* This is to declare cuserid. */ | |
69 | #ifdef HAVE_UNISTD_H | |
70 | #include <unistd.h> | |
71 | #endif | |
6b3ee98a RS |
72 | \f |
73 | /* Type definitions */ | |
74 | ||
75 | #define boolean int | |
76 | #define true 1 | |
77 | #define false 0 | |
78 | ||
79 | /* Various lists */ | |
80 | ||
81 | struct line_record | |
82 | { | |
83 | char *string; | |
84 | struct line_record *continuation; | |
85 | }; | |
86 | typedef struct line_record *line_list; | |
87 | ||
88 | struct header_record | |
89 | { | |
90 | line_list text; | |
91 | struct header_record *next; | |
92 | struct header_record *previous; | |
93 | }; | |
94 | typedef struct header_record *header; | |
95 | ||
96 | struct stream_record | |
97 | { | |
98 | FILE *handle; | |
99 | int (*action)(); | |
100 | struct stream_record *rest_streams; | |
101 | }; | |
102 | typedef struct stream_record *stream_list; | |
103 | ||
104 | /* A `struct linebuffer' is a structure which holds a line of text. | |
105 | * `readline' reads a line from a stream into a linebuffer | |
106 | * and works regardless of the length of the line. | |
107 | */ | |
108 | ||
109 | struct linebuffer | |
110 | { | |
111 | long size; | |
112 | char *buffer; | |
113 | }; | |
114 | ||
115 | struct linebuffer lb; | |
116 | ||
117 | #define new_list() \ | |
118 | ((line_list) xmalloc (sizeof (struct line_record))) | |
119 | #define new_header() \ | |
120 | ((header) xmalloc (sizeof (struct header_record))) | |
121 | #define new_stream() \ | |
122 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
123 | #define alloc_string(nchars) \ | |
124 | ((char *) xmalloc ((nchars) + 1)) | |
125 | \f | |
126 | /* Global declarations */ | |
127 | ||
128 | #define BUFLEN 1024 | |
129 | #define KEYWORD_SIZE 256 | |
130 | #define FROM_PREFIX "From" | |
131 | #define MY_NAME "fakemail" | |
132 | #define NIL ((line_list) NULL) | |
133 | #define INITIAL_LINE_SIZE 200 | |
134 | ||
135 | #ifndef MAIL_PROGRAM_NAME | |
136 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
137 | #endif | |
138 | ||
139 | static char *my_name; | |
140 | static char *the_date; | |
141 | static char *the_user; | |
142 | static line_list file_preface; | |
143 | static stream_list the_streams; | |
144 | static boolean no_problems = true; | |
145 | ||
146 | extern FILE *popen (); | |
147 | extern int fclose (), pclose (); | |
6b3ee98a RS |
148 | |
149 | #ifdef CURRENT_USER | |
150 | extern struct passwd *getpwuid (); | |
151 | extern unsigned short geteuid (); | |
152 | static struct passwd *my_entry; | |
153 | #define cuserid(s) \ | |
154 | (my_entry = getpwuid (((int) geteuid ())), \ | |
155 | my_entry->pw_name) | |
156 | #endif | |
157 | \f | |
158 | /* Utilities */ | |
159 | ||
160 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
161 | ||
162 | static void | |
163 | error (s1, s2) | |
164 | char *s1, *s2; | |
165 | { | |
166 | printf ("%s: ", my_name); | |
167 | printf (s1, s2); | |
168 | printf ("\n"); | |
169 | no_problems = false; | |
170 | } | |
171 | ||
172 | /* Print error message and exit. */ | |
173 | ||
174 | static void | |
175 | fatal (s1, s2) | |
176 | char *s1, *s2; | |
177 | { | |
178 | error (s1, s2); | |
179 | exit (1); | |
180 | } | |
181 | ||
182 | /* Like malloc but get fatal error if memory is exhausted. */ | |
183 | ||
65119039 | 184 | static long * |
6b3ee98a RS |
185 | xmalloc (size) |
186 | int size; | |
187 | { | |
65119039 RS |
188 | long *result = (long *) malloc (((unsigned) size)); |
189 | if (result == ((long *) NULL)) | |
6b3ee98a RS |
190 | fatal ("virtual memory exhausted", 0); |
191 | return result; | |
192 | } | |
193 | ||
65119039 | 194 | static long * |
6b3ee98a | 195 | xrealloc (ptr, size) |
65119039 | 196 | long *ptr; |
6b3ee98a RS |
197 | int size; |
198 | { | |
65119039 | 199 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 200 | if (result == ((long *) NULL)) |
6b3ee98a RS |
201 | fatal ("virtual memory exhausted"); |
202 | return result; | |
203 | } | |
204 | \f | |
205 | /* Initialize a linebuffer for use */ | |
206 | ||
207 | void | |
208 | init_linebuffer (linebuffer) | |
209 | struct linebuffer *linebuffer; | |
210 | { | |
211 | linebuffer->size = INITIAL_LINE_SIZE; | |
212 | linebuffer->buffer = ((char *) xmalloc (INITIAL_LINE_SIZE)); | |
213 | } | |
214 | ||
215 | /* Read a line of text from `stream' into `linebuffer'. | |
216 | * Return the length of the line. | |
217 | */ | |
218 | ||
219 | long | |
220 | readline (linebuffer, stream) | |
221 | struct linebuffer *linebuffer; | |
222 | FILE *stream; | |
223 | { | |
224 | char *buffer = linebuffer->buffer; | |
225 | char *p = linebuffer->buffer; | |
226 | char *end = p + linebuffer->size; | |
227 | ||
228 | while (true) | |
229 | { | |
230 | int c = getc (stream); | |
231 | if (p == end) | |
232 | { | |
233 | linebuffer->size *= 2; | |
234 | buffer = ((char *) xrealloc (buffer, linebuffer->size)); | |
f3309b68 | 235 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 236 | end = buffer + linebuffer->size; |
6b3ee98a RS |
237 | linebuffer->buffer = buffer; |
238 | } | |
239 | if (c < 0 || c == '\n') | |
240 | { | |
241 | *p = 0; | |
242 | break; | |
243 | } | |
244 | *p++ = c; | |
245 | } | |
246 | ||
247 | return p - buffer; | |
248 | } | |
249 | \f | |
3d23b985 RS |
250 | /* Extract a colon-terminated keyword from the string FIELD. |
251 | Return that keyword as a string stored in a static buffer. | |
252 | Store the address of the rest of the string into *REST. | |
253 | ||
254 | If there is no keyword, return NULL and don't alter *REST. */ | |
255 | ||
6b3ee98a RS |
256 | char * |
257 | get_keyword (field, rest) | |
258 | register char *field; | |
259 | char **rest; | |
260 | { | |
261 | static char keyword[KEYWORD_SIZE]; | |
262 | register char *ptr; | |
263 | register char c; | |
264 | ||
265 | ptr = &keyword[0]; | |
266 | c = *field++; | |
3d23b985 | 267 | if (isspace (c) || c == ':') |
6b3ee98a | 268 | return ((char *) NULL); |
3d23b985 RS |
269 | *ptr++ = (islower (c) ? toupper (c) : c); |
270 | while (((c = *field++) != ':') && ! isspace (c)) | |
271 | *ptr++ = (islower (c) ? toupper (c) : c); | |
6b3ee98a | 272 | *ptr++ = '\0'; |
3d23b985 RS |
273 | while (isspace (c)) |
274 | c = *field++; | |
275 | if (c != ':') | |
276 | return ((char *) NULL); | |
6b3ee98a RS |
277 | *rest = field; |
278 | return &keyword[0]; | |
279 | } | |
280 | ||
3d23b985 RS |
281 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
282 | ||
6b3ee98a RS |
283 | boolean |
284 | has_keyword (field) | |
285 | char *field; | |
286 | { | |
287 | char *ignored; | |
288 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
289 | } | |
290 | ||
3d23b985 RS |
291 | /* Store the string FIELD, followed by any lines in THE_LIST, |
292 | into the buffer WHERE. | |
293 | Concatenate lines, putting just a space between them. | |
294 | Delete everything contained in parentheses. | |
295 | When a recipient name contains <...>, we discard | |
296 | everything except what is inside the <...>. | |
297 | ||
298 | We don't pay attention to overflowing WHERE; | |
299 | the caller has to make it big enough. */ | |
300 | ||
6b3ee98a RS |
301 | char * |
302 | add_field (the_list, field, where) | |
303 | line_list the_list; | |
304 | register char *field, *where; | |
305 | { | |
306 | register char c; | |
307 | while (true) | |
308 | { | |
3d23b985 RS |
309 | char *this_recipient_where; |
310 | int in_quotes = 0; | |
311 | ||
6b3ee98a | 312 | *where++ = ' '; |
3d23b985 RS |
313 | this_recipient_where = where; |
314 | ||
6b3ee98a RS |
315 | while ((c = *field++) != '\0') |
316 | { | |
3d23b985 RS |
317 | if (c == '\\') |
318 | *where++ = c; | |
319 | else if (c == '"') | |
320 | { | |
321 | in_quotes = ! in_quotes; | |
322 | *where++ = c; | |
323 | } | |
324 | else if (in_quotes) | |
325 | *where++ = c; | |
326 | else if (c == '(') | |
6b3ee98a RS |
327 | { |
328 | while (*field && *field != ')') ++field; | |
3d23b985 RS |
329 | if (! (*field++)) break; /* no close */ |
330 | continue; | |
6b3ee98a | 331 | } |
3d23b985 RS |
332 | else if (c == ',') |
333 | { | |
334 | *where++ = ' '; | |
335 | /* When we get to the end of one recipient, | |
336 | don't discard it if the next one has <...>. */ | |
337 | this_recipient_where = where; | |
338 | } | |
339 | else if (c == '<') | |
340 | /* Discard everything we got before the `<'. */ | |
341 | where = this_recipient_where; | |
342 | else if (c == '>') | |
343 | /* Discard the rest of this name that follows the `>'. */ | |
344 | { | |
345 | while (*field && *field != ',') ++field; | |
346 | if (! (*field++)) break; /* no comma */ | |
347 | continue; | |
348 | } | |
349 | else | |
350 | *where++ = c; | |
6b3ee98a RS |
351 | } |
352 | if (the_list == NIL) break; | |
353 | field = the_list->string; | |
354 | the_list = the_list->continuation; | |
355 | } | |
356 | return where; | |
357 | } | |
358 | \f | |
359 | line_list | |
360 | make_file_preface () | |
361 | { | |
362 | char *the_string, *temp; | |
363 | long idiotic_interface; | |
364 | long prefix_length; | |
365 | long user_length; | |
366 | long date_length; | |
367 | line_list result; | |
368 | ||
369 | prefix_length = strlen (FROM_PREFIX); | |
370 | time (&idiotic_interface); | |
371 | the_date = ctime (&idiotic_interface); | |
372 | /* the_date has an unwanted newline at the end */ | |
373 | date_length = strlen (the_date) - 1; | |
374 | the_date[date_length] = '\0'; | |
375 | temp = cuserid ((char *) NULL); | |
376 | user_length = strlen (temp); | |
377 | the_user = alloc_string (user_length + 1); | |
378 | strcpy (the_user, temp); | |
7543028e RS |
379 | the_string = alloc_string (3 + prefix_length |
380 | + user_length | |
381 | + date_length); | |
6b3ee98a RS |
382 | temp = the_string; |
383 | strcpy (temp, FROM_PREFIX); | |
384 | temp = &temp[prefix_length]; | |
385 | *temp++ = ' '; | |
386 | strcpy (temp, the_user); | |
387 | temp = &temp[user_length]; | |
388 | *temp++ = ' '; | |
389 | strcpy (temp, the_date); | |
390 | result = new_list (); | |
391 | result->string = the_string; | |
392 | result->continuation = ((line_list) NULL); | |
393 | return result; | |
394 | } | |
395 | ||
396 | void | |
397 | write_line_list (the_list, the_stream) | |
398 | register line_list the_list; | |
399 | FILE *the_stream; | |
400 | { | |
401 | for ( ; | |
402 | the_list != ((line_list) NULL) ; | |
403 | the_list = the_list->continuation) | |
404 | { | |
405 | fputs (the_list->string, the_stream); | |
406 | putc ('\n', the_stream); | |
407 | } | |
408 | return; | |
409 | } | |
410 | \f | |
411 | int | |
412 | close_the_streams () | |
413 | { | |
414 | register stream_list rem; | |
415 | for (rem = the_streams; | |
416 | rem != ((stream_list) NULL); | |
417 | rem = rem->rest_streams) | |
418 | no_problems = (no_problems && | |
419 | ((*rem->action) (rem->handle) == 0)); | |
420 | the_streams = ((stream_list) NULL); | |
421 | return (no_problems ? 0 : 1); | |
422 | } | |
423 | ||
424 | void | |
425 | add_a_stream (the_stream, closing_action) | |
426 | FILE *the_stream; | |
427 | int (*closing_action)(); | |
428 | { | |
429 | stream_list old = the_streams; | |
430 | the_streams = new_stream (); | |
431 | the_streams->handle = the_stream; | |
432 | the_streams->action = closing_action; | |
433 | the_streams->rest_streams = old; | |
434 | return; | |
435 | } | |
436 | ||
437 | int | |
438 | my_fclose (the_file) | |
439 | FILE *the_file; | |
440 | { | |
441 | putc ('\n', the_file); | |
442 | fflush (the_file); | |
443 | return fclose (the_file); | |
444 | } | |
445 | ||
446 | boolean | |
447 | open_a_file (name) | |
448 | char *name; | |
449 | { | |
450 | FILE *the_stream = fopen (name, "a"); | |
451 | if (the_stream != ((FILE *) NULL)) | |
452 | { | |
453 | add_a_stream (the_stream, my_fclose); | |
454 | if (the_user == ((char *) NULL)) | |
455 | file_preface = make_file_preface (); | |
456 | write_line_list (file_preface, the_stream); | |
457 | return true; | |
458 | } | |
459 | return false; | |
460 | } | |
461 | ||
462 | void | |
463 | put_string (s) | |
464 | char *s; | |
465 | { | |
466 | register stream_list rem; | |
467 | for (rem = the_streams; | |
468 | rem != ((stream_list) NULL); | |
469 | rem = rem->rest_streams) | |
470 | fputs (s, rem->handle); | |
471 | return; | |
472 | } | |
473 | ||
474 | void | |
a492a5b9 RS |
475 | put_line (string) |
476 | char *string; | |
6b3ee98a RS |
477 | { |
478 | register stream_list rem; | |
479 | for (rem = the_streams; | |
480 | rem != ((stream_list) NULL); | |
481 | rem = rem->rest_streams) | |
482 | { | |
a492a5b9 RS |
483 | char *s = string; |
484 | int column = 0; | |
485 | ||
486 | /* Divide STRING into lines. */ | |
487 | while (*s != 0) | |
488 | { | |
489 | char *breakpos; | |
490 | ||
fbffe7d9 | 491 | /* Find the last char that fits. */ |
a492a5b9 RS |
492 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
493 | { | |
494 | if (*breakpos == '\t') | |
495 | column += 8; | |
496 | else | |
497 | column++; | |
498 | } | |
fbffe7d9 RS |
499 | /* If we didn't reach end of line, break the line. */ |
500 | if (*breakpos) | |
a492a5b9 | 501 | { |
fbffe7d9 RS |
502 | /* Back up to just after the last comma that fits. */ |
503 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
504 | ||
505 | if (breakpos == s) | |
506 | { | |
507 | /* If no comma fits, move past the first address anyway. */ | |
508 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
509 | if (*breakpos != 0) | |
510 | /* Include the comma after it. */ | |
511 | ++breakpos; | |
512 | } | |
a492a5b9 RS |
513 | } |
514 | /* Output that much, then break the line. */ | |
515 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
516 | column = 8; |
517 | ||
518 | /* Skip whitespace and prepare to print more addresses. */ | |
519 | s = breakpos; | |
520 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
521 | if (*s != 0) |
522 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 523 | } |
6b3ee98a RS |
524 | putc ('\n', rem->handle); |
525 | } | |
526 | return; | |
527 | } | |
528 | \f | |
529 | #define mail_error error | |
530 | ||
3d23b985 RS |
531 | /* Handle an FCC field. FIELD is the text of the first line (after |
532 | the header name), and THE_LIST holds the continuation lines if any. | |
533 | Call open_a_file for each file. */ | |
534 | ||
6b3ee98a RS |
535 | void |
536 | setup_files (the_list, field) | |
537 | register line_list the_list; | |
538 | register char *field; | |
539 | { | |
540 | register char *start; | |
541 | register char c; | |
542 | while (true) | |
543 | { | |
3d23b985 RS |
544 | while (((c = *field) != '\0') |
545 | && (c == ' ' | |
546 | || c == '\t' | |
547 | || c == ',')) | |
6b3ee98a RS |
548 | field += 1; |
549 | if (c != '\0') | |
550 | { | |
551 | start = field; | |
3d23b985 RS |
552 | while (((c = *field) != '\0') |
553 | && c != ' ' | |
554 | && c != '\t' | |
555 | && c != ',') | |
6b3ee98a RS |
556 | field += 1; |
557 | *field = '\0'; | |
558 | if (!open_a_file (start)) | |
559 | mail_error ("Could not open file %s", start); | |
560 | *field = c; | |
561 | if (c != '\0') continue; | |
562 | } | |
3d23b985 RS |
563 | if (the_list == ((line_list) NULL)) |
564 | return; | |
6b3ee98a RS |
565 | field = the_list->string; |
566 | the_list = the_list->continuation; | |
567 | } | |
568 | } | |
569 | \f | |
3d23b985 RS |
570 | /* Compute the total size of all recipient names stored in THE_HEADER. |
571 | The result says how big to make the buffer to pass to parse_header. */ | |
572 | ||
6b3ee98a RS |
573 | int |
574 | args_size (the_header) | |
575 | header the_header; | |
576 | { | |
577 | register header old = the_header; | |
578 | register line_list rem; | |
579 | register int size = 0; | |
580 | do | |
581 | { | |
582 | char *field; | |
583 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
584 | if ((strcmp (keyword, "TO") == 0) |
585 | || (strcmp (keyword, "CC") == 0) | |
586 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
587 | { |
588 | size += 1 + strlen (field); | |
589 | for (rem = the_header->text->continuation; | |
590 | rem != NIL; | |
591 | rem = rem->continuation) | |
592 | size += 1 + strlen (rem->string); | |
593 | } | |
594 | the_header = the_header->next; | |
595 | } while (the_header != old); | |
596 | return size; | |
597 | } | |
598 | ||
3d23b985 RS |
599 | /* Scan the header described by the lists THE_HEADER, |
600 | and put all recipient names into the buffer WHERE. | |
601 | Precede each recipient name with a space. | |
602 | ||
603 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
604 | ||
cb58ebb0 | 605 | void |
6b3ee98a RS |
606 | parse_header (the_header, where) |
607 | header the_header; | |
608 | register char *where; | |
609 | { | |
610 | register header old = the_header; | |
611 | do | |
612 | { | |
613 | char *field; | |
614 | register char *keyword = get_keyword (the_header->text->string, &field); | |
615 | if (strcmp (keyword, "TO") == 0) | |
616 | where = add_field (the_header->text->continuation, field, where); | |
617 | else if (strcmp (keyword, "CC") == 0) | |
618 | where = add_field (the_header->text->continuation, field, where); | |
619 | else if (strcmp (keyword, "BCC") == 0) | |
620 | { | |
621 | where = add_field (the_header->text->continuation, field, where); | |
622 | the_header->previous->next = the_header->next; | |
623 | the_header->next->previous = the_header->previous; | |
624 | } | |
625 | else if (strcmp (keyword, "FCC") == 0) | |
626 | setup_files (the_header->text->continuation, field); | |
627 | the_header = the_header->next; | |
628 | } while (the_header != old); | |
629 | *where = '\0'; | |
630 | return; | |
631 | } | |
632 | \f | |
3d23b985 RS |
633 | /* Read lines from the input until we get a blank line. |
634 | Create a list of `header' objects, one for each header field, | |
635 | each of which points to a list of `line_list' objects, | |
636 | one for each line in that field. | |
637 | Continuation lines are grouped in the headers they continue. */ | |
638 | ||
6b3ee98a RS |
639 | header |
640 | read_header () | |
641 | { | |
642 | register header the_header = ((header) NULL); | |
643 | register line_list *next_line = ((line_list *) NULL); | |
644 | ||
645 | init_linebuffer (&lb); | |
646 | ||
647 | do | |
648 | { | |
649 | long length; | |
650 | register char *line; | |
651 | ||
652 | readline (&lb, stdin); | |
653 | line = lb.buffer; | |
654 | length = strlen (line); | |
655 | if (length == 0) break; | |
656 | ||
657 | if (has_keyword (line)) | |
658 | { | |
659 | register header old = the_header; | |
660 | the_header = new_header (); | |
661 | if (old == ((header) NULL)) | |
662 | { | |
663 | the_header->next = the_header; | |
664 | the_header->previous = the_header; | |
665 | } | |
666 | else | |
667 | { | |
668 | the_header->previous = old; | |
669 | the_header->next = old->next; | |
670 | old->next = the_header; | |
671 | } | |
672 | next_line = &(the_header->text); | |
673 | } | |
674 | ||
675 | if (next_line == ((line_list *) NULL)) | |
676 | { | |
677 | /* Not a valid header */ | |
678 | exit (1); | |
679 | } | |
680 | *next_line = new_list (); | |
681 | (*next_line)->string = alloc_string (length); | |
682 | strcpy (((*next_line)->string), line); | |
683 | next_line = &((*next_line)->continuation); | |
684 | *next_line = NIL; | |
685 | ||
686 | } while (true); | |
687 | ||
688 | return the_header->next; | |
689 | } | |
690 | \f | |
691 | void | |
692 | write_header (the_header) | |
693 | header the_header; | |
694 | { | |
695 | register header old = the_header; | |
696 | do | |
697 | { | |
698 | register line_list the_list; | |
699 | for (the_list = the_header->text; | |
700 | the_list != NIL; | |
701 | the_list = the_list->continuation) | |
702 | put_line (the_list->string); | |
703 | the_header = the_header->next; | |
704 | } while (the_header != old); | |
705 | put_line (""); | |
706 | return; | |
707 | } | |
708 | \f | |
d0dff6e5 | 709 | int |
6b3ee98a RS |
710 | main (argc, argv) |
711 | int argc; | |
712 | char **argv; | |
713 | { | |
714 | char *command_line; | |
715 | header the_header; | |
716 | long name_length; | |
717 | char *mail_program_name; | |
718 | char buf[BUFLEN + 1]; | |
719 | register int size; | |
720 | FILE *the_pipe; | |
721 | ||
722 | extern char *getenv (); | |
723 | ||
724 | mail_program_name = getenv ("FAKEMAILER"); | |
725 | if (!(mail_program_name && *mail_program_name)) | |
726 | mail_program_name = MAIL_PROGRAM_NAME; | |
727 | name_length = strlen (mail_program_name); | |
728 | ||
729 | my_name = MY_NAME; | |
730 | the_streams = ((stream_list) NULL); | |
731 | the_date = ((char *) NULL); | |
732 | the_user = ((char *) NULL); | |
733 | ||
734 | the_header = read_header (); | |
735 | command_line = alloc_string (name_length + args_size (the_header)); | |
736 | strcpy (command_line, mail_program_name); | |
737 | parse_header (the_header, &command_line[name_length]); | |
738 | ||
739 | the_pipe = popen (command_line, "w"); | |
740 | if (the_pipe == ((FILE *) NULL)) | |
741 | fatal ("cannot open pipe to real mailer"); | |
742 | ||
743 | add_a_stream (the_pipe, pclose); | |
744 | ||
745 | write_header (the_header); | |
746 | ||
747 | /* Dump the message itself */ | |
748 | ||
749 | while (!feof (stdin)) | |
750 | { | |
751 | size = fread (buf, 1, BUFLEN, stdin); | |
752 | buf[size] = '\0'; | |
753 | put_string (buf); | |
754 | } | |
755 | ||
756 | exit (close_the_streams ()); | |
757 | } | |
758 | ||
26528bbc | 759 | #endif /* not MSDOS */ |
6b3ee98a | 760 | #endif /* not BSD 4.2 (or newer) */ |