Commit | Line | Data |
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761330fe DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
2ae9f53f | 7 | #ifndef lint |
6e052466 | 8 | static char *sccsid = "@(#)quit.c 5.3 (Berkeley) %G%"; |
761330fe | 9 | #endif not lint |
865dca9a KS |
10 | |
11 | #include "rcv.h" | |
12 | #include <sys/stat.h> | |
4e161d3b | 13 | #include <sys/file.h> |
865dca9a KS |
14 | |
15 | /* | |
16 | * Rcv -- receive mail rationally. | |
17 | * | |
18 | * Termination processing. | |
19 | */ | |
20 | ||
865dca9a KS |
21 | /* |
22 | * Save all of the undetermined messages at the top of "mbox" | |
23 | * Save all untouched messages back in the system mailbox. | |
24 | * Remove the system mailbox, if none saved there. | |
25 | */ | |
26 | ||
27 | quit() | |
28 | { | |
c2483c81 | 29 | int mcount, p, modify, autohold, anystat, holdbit, nohold; |
4e161d3b | 30 | FILE *ibuf, *obuf, *fbuf, *rbuf, *readstat, *abuf; |
865dca9a KS |
31 | register struct message *mp; |
32 | register int c; | |
33 | extern char tempQuit[], tempResid[]; | |
34 | struct stat minfo; | |
f0d15113 | 35 | char *id; |
865dca9a | 36 | |
3ecebc0f KS |
37 | /* |
38 | * If we are read only, we can't do anything, | |
39 | * so just return quickly. | |
40 | */ | |
41 | ||
42 | if (readonly) | |
43 | return; | |
865dca9a KS |
44 | /* |
45 | * See if there any messages to save in mbox. If no, we | |
46 | * can save copying mbox to /tmp and back. | |
47 | * | |
48 | * Check also to see if any files need to be preserved. | |
49 | * Delete all untouched messages to keep them out of mbox. | |
50 | * If all the messages are to be preserved, just exit with | |
51 | * a message. | |
52 | * | |
53 | * If the luser has sent mail to himself, refuse to do | |
54 | * anything with the mailbox, unless mail locking works. | |
55 | */ | |
56 | ||
4e161d3b RC |
57 | fbuf = fopen(mailname, "r"); |
58 | if (fbuf == NULL) | |
59 | goto newmail; | |
60 | flock(fileno(fbuf), LOCK_EX); | |
865dca9a KS |
61 | #ifndef CANLOCK |
62 | if (selfsent) { | |
63 | printf("You have new mail.\n"); | |
4e161d3b | 64 | fclose(fbuf); |
865dca9a KS |
65 | return; |
66 | } | |
67 | #endif | |
68 | rbuf = NULL; | |
4e161d3b | 69 | if (fstat(fileno(fbuf), &minfo) >= 0 && minfo.st_size > mailsize) { |
865dca9a KS |
70 | printf("New mail has arrived.\n"); |
71 | rbuf = fopen(tempResid, "w"); | |
865dca9a KS |
72 | if (rbuf == NULL || fbuf == NULL) |
73 | goto newmail; | |
74 | #ifdef APPEND | |
75 | fseek(fbuf, mailsize, 0); | |
76 | while ((c = getc(fbuf)) != EOF) | |
77 | putc(c, rbuf); | |
78 | #else | |
79 | p = minfo.st_size - mailsize; | |
80 | while (p-- > 0) { | |
81 | c = getc(fbuf); | |
82 | if (c == EOF) | |
83 | goto newmail; | |
84 | putc(c, rbuf); | |
85 | } | |
86 | #endif | |
865dca9a KS |
87 | fclose(rbuf); |
88 | if ((rbuf = fopen(tempResid, "r")) == NULL) | |
89 | goto newmail; | |
90 | remove(tempResid); | |
91 | } | |
63e83a9b KS |
92 | |
93 | /* | |
94 | * Adjust the message flags in each message. | |
95 | */ | |
96 | ||
97 | anystat = 0; | |
252cba79 KS |
98 | autohold = value("hold") != NOSTR; |
99 | holdbit = autohold ? MPRESERVE : MBOX; | |
c2483c81 KS |
100 | nohold = MBOX|MSAVED|MDELETED|MPRESERVE; |
101 | if (value("keepsave") != NOSTR) | |
102 | nohold &= ~MSAVED; | |
865dca9a | 103 | for (mp = &message[0]; mp < &message[msgCount]; mp++) { |
63e83a9b KS |
104 | if (mp->m_flag & MNEW) { |
105 | mp->m_flag &= ~MNEW; | |
106 | mp->m_flag |= MSTATUS; | |
107 | } | |
108 | if (mp->m_flag & MSTATUS) | |
109 | anystat++; | |
865dca9a | 110 | if ((mp->m_flag & MTOUCH) == 0) |
252cba79 | 111 | mp->m_flag |= MPRESERVE; |
c2483c81 | 112 | if ((mp->m_flag & nohold) == 0) |
252cba79 | 113 | mp->m_flag |= holdbit; |
865dca9a KS |
114 | } |
115 | modify = 0; | |
f0d15113 KS |
116 | if (Tflag != NOSTR) { |
117 | if ((readstat = fopen(Tflag, "w")) == NULL) | |
118 | Tflag = NOSTR; | |
119 | } | |
865dca9a | 120 | for (c = 0, p = 0, mp = &message[0]; mp < &message[msgCount]; mp++) { |
252cba79 | 121 | if (mp->m_flag & MBOX) |
865dca9a | 122 | c++; |
252cba79 | 123 | if (mp->m_flag & MPRESERVE) |
865dca9a KS |
124 | p++; |
125 | if (mp->m_flag & MODIFY) | |
126 | modify++; | |
f0d15113 KS |
127 | if (Tflag != NOSTR && (mp->m_flag & (MREAD|MDELETED)) != 0) { |
128 | id = hfield("article-id", mp); | |
129 | if (id != NOSTR) | |
130 | fprintf(readstat, "%s\n", id); | |
131 | } | |
865dca9a | 132 | } |
f0d15113 KS |
133 | if (Tflag != NOSTR) |
134 | fclose(readstat); | |
63e83a9b | 135 | if (p == msgCount && !modify && !anystat) { |
865dca9a KS |
136 | if (p == 1) |
137 | printf("Held 1 message in %s\n", mailname); | |
138 | else | |
139 | printf("Held %2d messages in %s\n", p, mailname); | |
4e161d3b | 140 | fclose(fbuf); |
865dca9a KS |
141 | return; |
142 | } | |
143 | if (c == 0) { | |
144 | if (p != 0) { | |
145 | writeback(rbuf); | |
4e161d3b | 146 | fclose(fbuf); |
865dca9a KS |
147 | return; |
148 | } | |
149 | goto cream; | |
150 | } | |
151 | ||
152 | /* | |
153 | * Create another temporary file and copy user's mbox file | |
154 | * darin. If there is no mbox, copy nothing. | |
155 | * If he has specified "append" don't copy his mailbox, | |
156 | * just copy saveable entries at the end. | |
157 | */ | |
158 | ||
159 | mcount = c; | |
160 | if (value("append") == NOSTR) { | |
161 | if ((obuf = fopen(tempQuit, "w")) == NULL) { | |
162 | perror(tempQuit); | |
4e161d3b | 163 | fclose(fbuf); |
865dca9a KS |
164 | return; |
165 | } | |
166 | if ((ibuf = fopen(tempQuit, "r")) == NULL) { | |
167 | perror(tempQuit); | |
168 | remove(tempQuit); | |
169 | fclose(obuf); | |
4e161d3b | 170 | fclose(fbuf); |
865dca9a KS |
171 | return; |
172 | } | |
173 | remove(tempQuit); | |
4e161d3b RC |
174 | if ((abuf = fopen(mbox, "r")) != NULL) { |
175 | while ((c = getc(abuf)) != EOF) | |
865dca9a | 176 | putc(c, obuf); |
4e161d3b | 177 | fclose(abuf); |
865dca9a KS |
178 | } |
179 | if (ferror(obuf)) { | |
180 | perror(tempQuit); | |
181 | fclose(ibuf); | |
182 | fclose(obuf); | |
4e161d3b | 183 | fclose(fbuf); |
865dca9a KS |
184 | return; |
185 | } | |
186 | fclose(obuf); | |
187 | close(creat(mbox, 0600)); | |
b1064dda | 188 | if ((obuf = fopen(mbox, "r+")) == NULL) { |
865dca9a KS |
189 | perror(mbox); |
190 | fclose(ibuf); | |
4e161d3b | 191 | fclose(fbuf); |
865dca9a KS |
192 | return; |
193 | } | |
194 | } | |
195 | if (value("append") != NOSTR) | |
196 | if ((obuf = fopen(mbox, "a")) == NULL) { | |
197 | perror(mbox); | |
4e161d3b | 198 | fclose(fbuf); |
865dca9a KS |
199 | return; |
200 | } | |
201 | for (mp = &message[0]; mp < &message[msgCount]; mp++) | |
252cba79 | 202 | if (mp->m_flag & MBOX) |
c2146fa9 | 203 | if (send(mp, obuf, 0) < 0) { |
865dca9a KS |
204 | perror(mbox); |
205 | fclose(ibuf); | |
206 | fclose(obuf); | |
4e161d3b | 207 | fclose(fbuf); |
865dca9a KS |
208 | return; |
209 | } | |
210 | ||
211 | /* | |
212 | * Copy the user's old mbox contents back | |
213 | * to the end of the stuff we just saved. | |
214 | * If we are appending, this is unnecessary. | |
215 | */ | |
216 | ||
217 | if (value("append") == NOSTR) { | |
218 | rewind(ibuf); | |
219 | c = getc(ibuf); | |
220 | while (c != EOF) { | |
221 | putc(c, obuf); | |
222 | if (ferror(obuf)) | |
223 | break; | |
224 | c = getc(ibuf); | |
225 | } | |
226 | fclose(ibuf); | |
227 | fflush(obuf); | |
228 | } | |
ed3b895e | 229 | trunc(obuf); |
865dca9a KS |
230 | if (ferror(obuf)) { |
231 | perror(mbox); | |
232 | fclose(obuf); | |
4e161d3b | 233 | fclose(fbuf); |
865dca9a KS |
234 | return; |
235 | } | |
236 | fclose(obuf); | |
237 | if (mcount == 1) | |
238 | printf("Saved 1 message in mbox\n"); | |
239 | else | |
240 | printf("Saved %d messages in mbox\n", mcount); | |
241 | ||
242 | /* | |
243 | * Now we are ready to copy back preserved files to | |
244 | * the system mailbox, if any were requested. | |
245 | */ | |
246 | ||
247 | if (p != 0) { | |
248 | writeback(rbuf); | |
4e161d3b | 249 | fclose(fbuf); |
865dca9a KS |
250 | return; |
251 | } | |
252 | ||
253 | /* | |
254 | * Finally, remove his /usr/mail file. | |
255 | * If new mail has arrived, copy it back. | |
256 | */ | |
257 | ||
258 | cream: | |
259 | if (rbuf != NULL) { | |
4e161d3b RC |
260 | abuf = fopen(mailname, "r+"); |
261 | if (abuf == NULL) | |
865dca9a KS |
262 | goto newmail; |
263 | while ((c = getc(rbuf)) != EOF) | |
4e161d3b | 264 | putc(c, abuf); |
865dca9a | 265 | fclose(rbuf); |
4e161d3b RC |
266 | trunc(abuf); |
267 | fclose(abuf); | |
865dca9a | 268 | alter(mailname); |
4e161d3b | 269 | fclose(fbuf); |
865dca9a KS |
270 | return; |
271 | } | |
272 | demail(); | |
4e161d3b | 273 | fclose(fbuf); |
865dca9a KS |
274 | return; |
275 | ||
276 | newmail: | |
277 | printf("Thou hast new mail.\n"); | |
cb674576 S |
278 | if (fbuf != NULL) |
279 | fclose(fbuf); | |
865dca9a KS |
280 | } |
281 | ||
282 | /* | |
283 | * Preserve all the appropriate messages back in the system | |
284 | * mailbox, and print a nice message indicated how many were | |
285 | * saved. On any error, just return -1. Else return 0. | |
286 | * Incorporate the any new mail that we found. | |
287 | */ | |
865dca9a KS |
288 | writeback(res) |
289 | register FILE *res; | |
290 | { | |
291 | register struct message *mp; | |
292 | register int p, c; | |
293 | FILE *obuf; | |
294 | ||
295 | p = 0; | |
b1064dda | 296 | if ((obuf = fopen(mailname, "r+")) == NULL) { |
865dca9a KS |
297 | perror(mailname); |
298 | return(-1); | |
299 | } | |
300 | #ifndef APPEND | |
301 | if (res != NULL) | |
302 | while ((c = getc(res)) != EOF) | |
303 | putc(c, obuf); | |
304 | #endif | |
305 | for (mp = &message[0]; mp < &message[msgCount]; mp++) | |
306 | if ((mp->m_flag&MPRESERVE)||(mp->m_flag&MTOUCH)==0) { | |
307 | p++; | |
c2146fa9 | 308 | if (send(mp, obuf, 0) < 0) { |
865dca9a KS |
309 | perror(mailname); |
310 | fclose(obuf); | |
311 | return(-1); | |
312 | } | |
313 | } | |
314 | #ifdef APPEND | |
315 | if (res != NULL) | |
316 | while ((c = getc(res)) != EOF) | |
317 | putc(c, obuf); | |
318 | #endif | |
319 | fflush(obuf); | |
ed3b895e | 320 | trunc(obuf); |
865dca9a KS |
321 | if (ferror(obuf)) { |
322 | perror(mailname); | |
323 | fclose(obuf); | |
324 | return(-1); | |
325 | } | |
326 | if (res != NULL) | |
327 | fclose(res); | |
328 | fclose(obuf); | |
329 | alter(mailname); | |
330 | if (p == 1) | |
331 | printf("Held 1 message in %s\n", mailname); | |
332 | else | |
333 | printf("Held %d messages in %s\n", p, mailname); | |
334 | return(0); | |
335 | } |