Commit | Line | Data |
---|---|---|
6b3ee98a | 1 | /* sendmail-like interface to /bin/mail for system V, |
b3d90e46 | 2 | Copyright (C) 1985, 1994, 1999, 2001, 2002, 2003, 2004, |
114f9c96 | 3 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
6b3ee98a | 4 | |
c3fba29d GM |
5 | Author: Bill Rozas <jinx@martigny.ai.mit.edu> |
6 | (according to ack.texi) | |
7 | ||
6b3ee98a RS |
8 | This file is part of GNU Emacs. |
9 | ||
294981c7 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
518dd722 | 11 | it under the terms of the GNU General Public License as published by |
294981c7 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
518dd722 | 14 | |
6b3ee98a | 15 | GNU Emacs is distributed in the hope that it will be useful, |
518dd722 JB |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
294981c7 GM |
21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
22 | ||
6b3ee98a | 23 | |
a33c19b1 | 24 | #define _XOPEN_SOURCE 500 /* for cuserid */ |
594aa066 PJ |
25 | |
26 | #ifdef HAVE_CONFIG_H | |
4838e624 | 27 | #include <config.h> |
594aa066 | 28 | #endif |
6b3ee98a | 29 | |
f2a77c3a | 30 | #if defined (BSD_SYSTEM) && !defined (USE_FAKEMAIL) |
6b3ee98a | 31 | /* This program isnot used in BSD, so just avoid loader complaints. */ |
d0dff6e5 | 32 | int |
6b3ee98a RS |
33 | main () |
34 | { | |
0d1841a6 | 35 | return 0; |
6b3ee98a RS |
36 | } |
37 | #else /* not BSD 4.2 (or newer) */ | |
26528bbc | 38 | #ifdef MSDOS |
d0dff6e5 | 39 | int |
26528bbc RS |
40 | main () |
41 | { | |
0d1841a6 | 42 | return 0; |
26528bbc RS |
43 | } |
44 | #else /* not MSDOS */ | |
6b3ee98a RS |
45 | /* This conditional contains all the rest of the file. */ |
46 | ||
47 | /* These are defined in config in some versions. */ | |
48 | ||
49 | #ifdef static | |
50 | #undef static | |
51 | #endif | |
52 | ||
7c544420 RS |
53 | #ifdef WINDOWSNT |
54 | #include "ntlib.h" | |
55 | #endif | |
56 | ||
6b3ee98a RS |
57 | #include <stdio.h> |
58 | #include <string.h> | |
59 | #include <ctype.h> | |
60 | #include <time.h> | |
61 | #include <pwd.h> | |
7543028e RS |
62 | |
63 | /* This is to declare cuserid. */ | |
64 | #ifdef HAVE_UNISTD_H | |
65 | #include <unistd.h> | |
66 | #endif | |
6b3ee98a RS |
67 | \f |
68 | /* Type definitions */ | |
69 | ||
70 | #define boolean int | |
71 | #define true 1 | |
72 | #define false 0 | |
73 | ||
d65b4235 PE |
74 | #define TM_YEAR_BASE 1900 |
75 | ||
76 | /* Nonzero if TM_YEAR is a struct tm's tm_year value that causes | |
77 | asctime to have well-defined behavior. */ | |
78 | #ifndef TM_YEAR_IN_ASCTIME_RANGE | |
f5565804 | 79 | # define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \ |
d65b4235 | 80 | (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE) |
f5565804 PE |
81 | #endif |
82 | ||
6b3ee98a RS |
83 | /* Various lists */ |
84 | ||
85 | struct line_record | |
86 | { | |
87 | char *string; | |
88 | struct line_record *continuation; | |
89 | }; | |
90 | typedef struct line_record *line_list; | |
91 | ||
92 | struct header_record | |
93 | { | |
94 | line_list text; | |
95 | struct header_record *next; | |
96 | struct header_record *previous; | |
97 | }; | |
98 | typedef struct header_record *header; | |
594aa066 | 99 | |
6b3ee98a RS |
100 | struct stream_record |
101 | { | |
102 | FILE *handle; | |
b8463cbf | 103 | int (*action)(FILE *); |
6b3ee98a RS |
104 | struct stream_record *rest_streams; |
105 | }; | |
106 | typedef struct stream_record *stream_list; | |
107 | ||
108 | /* A `struct linebuffer' is a structure which holds a line of text. | |
109 | * `readline' reads a line from a stream into a linebuffer | |
110 | * and works regardless of the length of the line. | |
111 | */ | |
112 | ||
113 | struct linebuffer | |
114 | { | |
115 | long size; | |
116 | char *buffer; | |
117 | }; | |
118 | ||
119 | struct linebuffer lb; | |
120 | ||
121 | #define new_list() \ | |
122 | ((line_list) xmalloc (sizeof (struct line_record))) | |
123 | #define new_header() \ | |
124 | ((header) xmalloc (sizeof (struct header_record))) | |
125 | #define new_stream() \ | |
126 | ((stream_list) xmalloc (sizeof (struct stream_record))) | |
127 | #define alloc_string(nchars) \ | |
128 | ((char *) xmalloc ((nchars) + 1)) | |
129 | \f | |
130 | /* Global declarations */ | |
131 | ||
132 | #define BUFLEN 1024 | |
133 | #define KEYWORD_SIZE 256 | |
134 | #define FROM_PREFIX "From" | |
135 | #define MY_NAME "fakemail" | |
136 | #define NIL ((line_list) NULL) | |
137 | #define INITIAL_LINE_SIZE 200 | |
138 | ||
45c1955d DN |
139 | #ifndef MAIL_PROGRAM_NAME |
140 | #define MAIL_PROGRAM_NAME "/bin/mail" | |
141 | #endif | |
142 | ||
6b3ee98a RS |
143 | static char *my_name; |
144 | static char *the_date; | |
145 | static char *the_user; | |
146 | static line_list file_preface; | |
147 | static stream_list the_streams; | |
148 | static boolean no_problems = true; | |
149 | ||
68441b90 DN |
150 | static void fatal (char *s1) NO_RETURN; |
151 | ||
873fbd0b DN |
152 | extern FILE *popen (const char *, const char *); |
153 | extern int fclose (FILE *), pclose (FILE *); | |
6b3ee98a RS |
154 | |
155 | #ifdef CURRENT_USER | |
156 | extern struct passwd *getpwuid (); | |
157 | extern unsigned short geteuid (); | |
158 | static struct passwd *my_entry; | |
159 | #define cuserid(s) \ | |
160 | (my_entry = getpwuid (((int) geteuid ())), \ | |
161 | my_entry->pw_name) | |
162 | #endif | |
163 | \f | |
164 | /* Utilities */ | |
165 | ||
166 | /* Print error message. `s1' is printf control string, `s2' is arg for it. */ | |
167 | ||
168 | static void | |
873fbd0b | 169 | error (char *s1, char *s2) |
6b3ee98a RS |
170 | { |
171 | printf ("%s: ", my_name); | |
172 | printf (s1, s2); | |
173 | printf ("\n"); | |
174 | no_problems = false; | |
175 | } | |
176 | ||
177 | /* Print error message and exit. */ | |
178 | ||
179 | static void | |
873fbd0b | 180 | fatal (char *s1) |
6b3ee98a | 181 | { |
5a84ed33 | 182 | error ("%s", s1); |
65396510 | 183 | exit (EXIT_FAILURE); |
6b3ee98a RS |
184 | } |
185 | ||
186 | /* Like malloc but get fatal error if memory is exhausted. */ | |
187 | ||
65119039 | 188 | static long * |
873fbd0b | 189 | xmalloc (int size) |
6b3ee98a | 190 | { |
65119039 RS |
191 | long *result = (long *) malloc (((unsigned) size)); |
192 | if (result == ((long *) NULL)) | |
5a84ed33 | 193 | fatal ("virtual memory exhausted"); |
6b3ee98a RS |
194 | return result; |
195 | } | |
196 | ||
65119039 | 197 | static long * |
873fbd0b | 198 | xrealloc (long int *ptr, int size) |
6b3ee98a | 199 | { |
65119039 | 200 | long *result = (long *) realloc (ptr, ((unsigned) size)); |
5391a863 | 201 | if (result == ((long *) NULL)) |
6b3ee98a RS |
202 | fatal ("virtual memory exhausted"); |
203 | return result; | |
204 | } | |
205 | \f | |
206 | /* Initialize a linebuffer for use */ | |
207 | ||
208 | void | |
873fbd0b | 209 | init_linebuffer (struct linebuffer *linebuffer) |
6b3ee98a RS |
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'. | |
594aa066 | 216 | Return the length of the line. */ |
6b3ee98a RS |
217 | |
218 | long | |
873fbd0b | 219 | readline (struct linebuffer *linebuffer, FILE *stream) |
6b3ee98a RS |
220 | { |
221 | char *buffer = linebuffer->buffer; | |
222 | char *p = linebuffer->buffer; | |
223 | char *end = p + linebuffer->size; | |
224 | ||
225 | while (true) | |
226 | { | |
227 | int c = getc (stream); | |
228 | if (p == end) | |
229 | { | |
230 | linebuffer->size *= 2; | |
26df3bb0 | 231 | buffer = ((char *) xrealloc ((long *)buffer, linebuffer->size)); |
f3309b68 | 232 | p = buffer + (p - linebuffer->buffer); |
1ddb6978 | 233 | end = buffer + linebuffer->size; |
6b3ee98a RS |
234 | linebuffer->buffer = buffer; |
235 | } | |
236 | if (c < 0 || c == '\n') | |
237 | { | |
238 | *p = 0; | |
239 | break; | |
240 | } | |
241 | *p++ = c; | |
242 | } | |
243 | ||
244 | return p - buffer; | |
245 | } | |
246 | \f | |
3d23b985 RS |
247 | /* Extract a colon-terminated keyword from the string FIELD. |
248 | Return that keyword as a string stored in a static buffer. | |
249 | Store the address of the rest of the string into *REST. | |
250 | ||
251 | If there is no keyword, return NULL and don't alter *REST. */ | |
252 | ||
6b3ee98a | 253 | char * |
873fbd0b | 254 | get_keyword (register char *field, char **rest) |
6b3ee98a RS |
255 | { |
256 | static char keyword[KEYWORD_SIZE]; | |
257 | register char *ptr; | |
859cbb40 | 258 | register int c; |
6b3ee98a RS |
259 | |
260 | ptr = &keyword[0]; | |
859cbb40 | 261 | c = (unsigned char) *field++; |
3d23b985 | 262 | if (isspace (c) || c == ':') |
6b3ee98a | 263 | return ((char *) NULL); |
3d23b985 | 264 | *ptr++ = (islower (c) ? toupper (c) : c); |
859cbb40 | 265 | while (((c = (unsigned char) *field++) != ':') && ! isspace (c)) |
3d23b985 | 266 | *ptr++ = (islower (c) ? toupper (c) : c); |
6b3ee98a | 267 | *ptr++ = '\0'; |
3d23b985 | 268 | while (isspace (c)) |
859cbb40 | 269 | c = (unsigned char) *field++; |
3d23b985 RS |
270 | if (c != ':') |
271 | return ((char *) NULL); | |
6b3ee98a RS |
272 | *rest = field; |
273 | return &keyword[0]; | |
274 | } | |
275 | ||
3d23b985 RS |
276 | /* Nonzero if the string FIELD starts with a colon-terminated keyword. */ |
277 | ||
6b3ee98a | 278 | boolean |
873fbd0b | 279 | has_keyword (char *field) |
6b3ee98a RS |
280 | { |
281 | char *ignored; | |
282 | return (get_keyword (field, &ignored) != ((char *) NULL)); | |
283 | } | |
284 | ||
3d23b985 RS |
285 | /* Store the string FIELD, followed by any lines in THE_LIST, |
286 | into the buffer WHERE. | |
287 | Concatenate lines, putting just a space between them. | |
288 | Delete everything contained in parentheses. | |
289 | When a recipient name contains <...>, we discard | |
290 | everything except what is inside the <...>. | |
291 | ||
292 | We don't pay attention to overflowing WHERE; | |
293 | the caller has to make it big enough. */ | |
294 | ||
6b3ee98a | 295 | char * |
873fbd0b | 296 | add_field (line_list the_list, register char *field, register char *where) |
6b3ee98a RS |
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 | |
873fbd0b | 352 | make_file_preface (void) |
6b3ee98a RS |
353 | { |
354 | char *the_string, *temp; | |
355 | long idiotic_interface; | |
f5565804 | 356 | struct tm *tm; |
6b3ee98a RS |
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); | |
f5565804 PE |
364 | /* Convert to a string, checking for out-of-range time stamps. |
365 | Don't use 'ctime', as that might dump core if the hardware clock | |
366 | is set to a bizarre value. */ | |
367 | tm = localtime (&idiotic_interface); | |
d65b4235 PE |
368 | if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year) |
369 | && (the_date = asctime (tm)))) | |
5a84ed33 | 370 | fatal ("current time is out of range"); |
6b3ee98a RS |
371 | /* the_date has an unwanted newline at the end */ |
372 | date_length = strlen (the_date) - 1; | |
373 | the_date[date_length] = '\0'; | |
374 | temp = cuserid ((char *) NULL); | |
375 | user_length = strlen (temp); | |
376 | the_user = alloc_string (user_length + 1); | |
377 | strcpy (the_user, temp); | |
7543028e RS |
378 | the_string = alloc_string (3 + prefix_length |
379 | + user_length | |
380 | + date_length); | |
6b3ee98a RS |
381 | temp = the_string; |
382 | strcpy (temp, FROM_PREFIX); | |
383 | temp = &temp[prefix_length]; | |
384 | *temp++ = ' '; | |
385 | strcpy (temp, the_user); | |
386 | temp = &temp[user_length]; | |
387 | *temp++ = ' '; | |
388 | strcpy (temp, the_date); | |
389 | result = new_list (); | |
390 | result->string = the_string; | |
391 | result->continuation = ((line_list) NULL); | |
392 | return result; | |
393 | } | |
394 | ||
395 | void | |
873fbd0b | 396 | write_line_list (register line_list the_list, FILE *the_stream) |
6b3ee98a RS |
397 | { |
398 | for ( ; | |
399 | the_list != ((line_list) NULL) ; | |
400 | the_list = the_list->continuation) | |
401 | { | |
402 | fputs (the_list->string, the_stream); | |
403 | putc ('\n', the_stream); | |
404 | } | |
405 | return; | |
406 | } | |
407 | \f | |
408 | int | |
873fbd0b | 409 | close_the_streams (void) |
6b3ee98a RS |
410 | { |
411 | register stream_list rem; | |
412 | for (rem = the_streams; | |
413 | rem != ((stream_list) NULL); | |
414 | rem = rem->rest_streams) | |
415 | no_problems = (no_problems && | |
416 | ((*rem->action) (rem->handle) == 0)); | |
417 | the_streams = ((stream_list) NULL); | |
65396510 | 418 | return (no_problems ? EXIT_SUCCESS : EXIT_FAILURE); |
6b3ee98a RS |
419 | } |
420 | ||
421 | void | |
b8463cbf | 422 | add_a_stream (FILE *the_stream, int (*closing_action) (FILE *)) |
6b3ee98a RS |
423 | { |
424 | stream_list old = the_streams; | |
425 | the_streams = new_stream (); | |
426 | the_streams->handle = the_stream; | |
427 | the_streams->action = closing_action; | |
428 | the_streams->rest_streams = old; | |
429 | return; | |
430 | } | |
431 | ||
432 | int | |
873fbd0b | 433 | my_fclose (FILE *the_file) |
6b3ee98a RS |
434 | { |
435 | putc ('\n', the_file); | |
436 | fflush (the_file); | |
437 | return fclose (the_file); | |
438 | } | |
439 | ||
440 | boolean | |
873fbd0b | 441 | open_a_file (char *name) |
6b3ee98a RS |
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 | |
873fbd0b | 456 | put_string (char *s) |
6b3ee98a RS |
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 | |
873fbd0b | 467 | put_line (char *string) |
6b3ee98a RS |
468 | { |
469 | register stream_list rem; | |
470 | for (rem = the_streams; | |
471 | rem != ((stream_list) NULL); | |
472 | rem = rem->rest_streams) | |
473 | { | |
a492a5b9 RS |
474 | char *s = string; |
475 | int column = 0; | |
476 | ||
477 | /* Divide STRING into lines. */ | |
478 | while (*s != 0) | |
479 | { | |
480 | char *breakpos; | |
481 | ||
fbffe7d9 | 482 | /* Find the last char that fits. */ |
a492a5b9 RS |
483 | for (breakpos = s; *breakpos && column < 78; ++breakpos) |
484 | { | |
485 | if (*breakpos == '\t') | |
486 | column += 8; | |
487 | else | |
488 | column++; | |
489 | } | |
fbffe7d9 RS |
490 | /* If we didn't reach end of line, break the line. */ |
491 | if (*breakpos) | |
a492a5b9 | 492 | { |
fbffe7d9 RS |
493 | /* Back up to just after the last comma that fits. */ |
494 | while (breakpos != s && breakpos[-1] != ',') --breakpos; | |
495 | ||
496 | if (breakpos == s) | |
497 | { | |
498 | /* If no comma fits, move past the first address anyway. */ | |
499 | while (*breakpos != 0 && *breakpos != ',') ++breakpos; | |
500 | if (*breakpos != 0) | |
501 | /* Include the comma after it. */ | |
502 | ++breakpos; | |
503 | } | |
a492a5b9 RS |
504 | } |
505 | /* Output that much, then break the line. */ | |
506 | fwrite (s, 1, breakpos - s, rem->handle); | |
a492a5b9 RS |
507 | column = 8; |
508 | ||
509 | /* Skip whitespace and prepare to print more addresses. */ | |
510 | s = breakpos; | |
511 | while (*s == ' ' || *s == '\t') ++s; | |
c1380f31 RS |
512 | if (*s != 0) |
513 | fputs ("\n\t", rem->handle); | |
a492a5b9 | 514 | } |
6b3ee98a RS |
515 | putc ('\n', rem->handle); |
516 | } | |
517 | return; | |
518 | } | |
519 | \f | |
520 | #define mail_error error | |
521 | ||
3d23b985 RS |
522 | /* Handle an FCC field. FIELD is the text of the first line (after |
523 | the header name), and THE_LIST holds the continuation lines if any. | |
524 | Call open_a_file for each file. */ | |
525 | ||
6b3ee98a | 526 | void |
873fbd0b | 527 | setup_files (register line_list the_list, register char *field) |
6b3ee98a RS |
528 | { |
529 | register char *start; | |
530 | register char c; | |
531 | while (true) | |
532 | { | |
3d23b985 RS |
533 | while (((c = *field) != '\0') |
534 | && (c == ' ' | |
535 | || c == '\t' | |
536 | || c == ',')) | |
6b3ee98a RS |
537 | field += 1; |
538 | if (c != '\0') | |
539 | { | |
540 | start = field; | |
3d23b985 RS |
541 | while (((c = *field) != '\0') |
542 | && c != ' ' | |
543 | && c != '\t' | |
544 | && c != ',') | |
6b3ee98a RS |
545 | field += 1; |
546 | *field = '\0'; | |
547 | if (!open_a_file (start)) | |
548 | mail_error ("Could not open file %s", start); | |
549 | *field = c; | |
550 | if (c != '\0') continue; | |
551 | } | |
3d23b985 RS |
552 | if (the_list == ((line_list) NULL)) |
553 | return; | |
6b3ee98a RS |
554 | field = the_list->string; |
555 | the_list = the_list->continuation; | |
556 | } | |
557 | } | |
558 | \f | |
3d23b985 RS |
559 | /* Compute the total size of all recipient names stored in THE_HEADER. |
560 | The result says how big to make the buffer to pass to parse_header. */ | |
561 | ||
6b3ee98a | 562 | int |
873fbd0b | 563 | args_size (header the_header) |
6b3ee98a RS |
564 | { |
565 | register header old = the_header; | |
566 | register line_list rem; | |
567 | register int size = 0; | |
568 | do | |
569 | { | |
570 | char *field; | |
571 | register char *keyword = get_keyword (the_header->text->string, &field); | |
3d23b985 RS |
572 | if ((strcmp (keyword, "TO") == 0) |
573 | || (strcmp (keyword, "CC") == 0) | |
574 | || (strcmp (keyword, "BCC") == 0)) | |
6b3ee98a RS |
575 | { |
576 | size += 1 + strlen (field); | |
577 | for (rem = the_header->text->continuation; | |
578 | rem != NIL; | |
579 | rem = rem->continuation) | |
580 | size += 1 + strlen (rem->string); | |
581 | } | |
582 | the_header = the_header->next; | |
583 | } while (the_header != old); | |
584 | return size; | |
585 | } | |
586 | ||
3d23b985 RS |
587 | /* Scan the header described by the lists THE_HEADER, |
588 | and put all recipient names into the buffer WHERE. | |
589 | Precede each recipient name with a space. | |
590 | ||
591 | Also, if the header has any FCC fields, call setup_files for each one. */ | |
592 | ||
cb58ebb0 | 593 | void |
873fbd0b | 594 | parse_header (header the_header, register char *where) |
6b3ee98a RS |
595 | { |
596 | register header old = the_header; | |
597 | do | |
598 | { | |
599 | char *field; | |
600 | register char *keyword = get_keyword (the_header->text->string, &field); | |
601 | if (strcmp (keyword, "TO") == 0) | |
602 | where = add_field (the_header->text->continuation, field, where); | |
603 | else if (strcmp (keyword, "CC") == 0) | |
604 | where = add_field (the_header->text->continuation, field, where); | |
605 | else if (strcmp (keyword, "BCC") == 0) | |
606 | { | |
607 | where = add_field (the_header->text->continuation, field, where); | |
608 | the_header->previous->next = the_header->next; | |
609 | the_header->next->previous = the_header->previous; | |
610 | } | |
611 | else if (strcmp (keyword, "FCC") == 0) | |
612 | setup_files (the_header->text->continuation, field); | |
613 | the_header = the_header->next; | |
614 | } while (the_header != old); | |
615 | *where = '\0'; | |
616 | return; | |
617 | } | |
594aa066 | 618 | \f |
3d23b985 RS |
619 | /* Read lines from the input until we get a blank line. |
620 | Create a list of `header' objects, one for each header field, | |
621 | each of which points to a list of `line_list' objects, | |
622 | one for each line in that field. | |
623 | Continuation lines are grouped in the headers they continue. */ | |
594aa066 | 624 | |
6b3ee98a | 625 | header |
873fbd0b | 626 | read_header (void) |
6b3ee98a RS |
627 | { |
628 | register header the_header = ((header) NULL); | |
629 | register line_list *next_line = ((line_list *) NULL); | |
630 | ||
631 | init_linebuffer (&lb); | |
632 | ||
633 | do | |
634 | { | |
635 | long length; | |
636 | register char *line; | |
637 | ||
638 | readline (&lb, stdin); | |
639 | line = lb.buffer; | |
640 | length = strlen (line); | |
641 | if (length == 0) break; | |
642 | ||
643 | if (has_keyword (line)) | |
644 | { | |
645 | register header old = the_header; | |
646 | the_header = new_header (); | |
647 | if (old == ((header) NULL)) | |
648 | { | |
649 | the_header->next = the_header; | |
650 | the_header->previous = the_header; | |
651 | } | |
652 | else | |
653 | { | |
654 | the_header->previous = old; | |
655 | the_header->next = old->next; | |
656 | old->next = the_header; | |
657 | } | |
658 | next_line = &(the_header->text); | |
659 | } | |
660 | ||
661 | if (next_line == ((line_list *) NULL)) | |
662 | { | |
663 | /* Not a valid header */ | |
65396510 | 664 | exit (EXIT_FAILURE); |
6b3ee98a RS |
665 | } |
666 | *next_line = new_list (); | |
667 | (*next_line)->string = alloc_string (length); | |
668 | strcpy (((*next_line)->string), line); | |
669 | next_line = &((*next_line)->continuation); | |
670 | *next_line = NIL; | |
671 | ||
672 | } while (true); | |
673 | ||
2ef88a94 RS |
674 | if (! the_header) |
675 | fatal ("input message has no header"); | |
6b3ee98a RS |
676 | return the_header->next; |
677 | } | |
678 | \f | |
679 | void | |
873fbd0b | 680 | write_header (header the_header) |
6b3ee98a RS |
681 | { |
682 | register header old = the_header; | |
683 | do | |
684 | { | |
685 | register line_list the_list; | |
686 | for (the_list = the_header->text; | |
687 | the_list != NIL; | |
688 | the_list = the_list->continuation) | |
689 | put_line (the_list->string); | |
690 | the_header = the_header->next; | |
691 | } while (the_header != old); | |
692 | put_line (""); | |
693 | return; | |
694 | } | |
695 | \f | |
d0dff6e5 | 696 | int |
873fbd0b | 697 | main (int argc, char **argv) |
6b3ee98a RS |
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 | ||
873fbd0b | 707 | extern char *getenv (const char *); |
6b3ee98a RS |
708 | |
709 | mail_program_name = getenv ("FAKEMAILER"); | |
710 | if (!(mail_program_name && *mail_program_name)) | |
45c1955d | 711 | mail_program_name = MAIL_PROGRAM_NAME; |
6b3ee98a RS |
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]); | |
594aa066 | 723 | |
6b3ee98a RS |
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) */ |
ab5796a9 MB |
746 | |
747 | /* arch-tag: acb0afa6-315a-4c5b-b9e3-def5725c8783 | |
748 | (do not change this comment) */ | |
65396510 TTN |
749 | |
750 | /* fakemail.c ends here */ |