![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to cmd2.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [CSRG BSD Unix] / 43BSDReno / usr.bin / mail|
Return to cmd2.c CVS log | Up to [CSRG BSD Unix] / 43BSDReno / usr.bin / mail |
1.1 root 1: /*
2: * Copyright (c) 1980 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted provided
6: * that: (1) source distributions retain this entire copyright notice and
7: * comment, and (2) distributions including binaries display the following
8: * acknowledgement: ``This product includes software developed by the
9: * University of California, Berkeley and its contributors'' in the
10: * documentation or other materials provided with the distribution and in
11: * all advertising materials mentioning features or use of this software.
12: * Neither the name of the University nor the names of its contributors may
13: * be used to endorse or promote products derived from this software without
14: * specific prior written permission.
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
16: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
17: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18: */
19:
20: #ifndef lint
21: static char sccsid[] = "@(#)cmd2.c 5.14 (Berkeley) 6/25/90";
22: #endif /* not lint */
23:
24: #include "rcv.h"
25: #include <sys/wait.h>
26:
27: /*
28: * Mail -- a mail program
29: *
30: * More user commands.
31: */
32:
33: /*
34: * If any arguments were given, go to the next applicable argument
35: * following dot, otherwise, go to the next applicable message.
36: * If given as first command with no arguments, print first message.
37: */
38:
39: next(msgvec)
40: int *msgvec;
41: {
42: register struct message *mp;
43: register int *ip, *ip2;
44: int list[2], mdot;
45:
46: if (*msgvec != NULL) {
47:
48: /*
49: * If some messages were supplied, find the
50: * first applicable one following dot using
51: * wrap around.
52: */
53:
54: mdot = dot - &message[0] + 1;
55:
56: /*
57: * Find the first message in the supplied
58: * message list which follows dot.
59: */
60:
61: for (ip = msgvec; *ip != NULL; ip++)
62: if (*ip > mdot)
63: break;
64: if (*ip == NULL)
65: ip = msgvec;
66: ip2 = ip;
67: do {
68: mp = &message[*ip2 - 1];
69: if ((mp->m_flag & MDELETED) == 0) {
70: dot = mp;
71: goto hitit;
72: }
73: if (*ip2 != NULL)
74: ip2++;
75: if (*ip2 == NULL)
76: ip2 = msgvec;
77: } while (ip2 != ip);
78: printf("No messages applicable\n");
79: return(1);
80: }
81:
82: /*
83: * If this is the first command, select message 1.
84: * Note that this must exist for us to get here at all.
85: */
86:
87: if (!sawcom)
88: goto hitit;
89:
90: /*
91: * Just find the next good message after dot, no
92: * wraparound.
93: */
94:
95: for (mp = dot+1; mp < &message[msgCount]; mp++)
96: if ((mp->m_flag & (MDELETED|MSAVED)) == 0)
97: break;
98: if (mp >= &message[msgCount]) {
99: printf("At EOF\n");
100: return(0);
101: }
102: dot = mp;
103: hitit:
104: /*
105: * Print dot.
106: */
107:
108: list[0] = dot - &message[0] + 1;
109: list[1] = NULL;
110: return(type(list));
111: }
112:
113: /*
114: * Save a message in a file. Mark the message as saved
115: * so we can discard when the user quits.
116: */
117: save(str)
118: char str[];
119: {
120:
121: return save1(str, 1, "save", saveignore);
122: }
123:
124: /*
125: * Copy a message to a file without affected its saved-ness
126: */
127: copycmd(str)
128: char str[];
129: {
130:
131: return save1(str, 0, "copy", saveignore);
132: }
133:
134: /*
135: * Save/copy the indicated messages at the end of the passed file name.
136: * If mark is true, mark the message "saved."
137: */
138: save1(str, mark, cmd, ignore)
139: char str[];
140: char *cmd;
141: struct ignoretab *ignore;
142: {
143: register int *ip;
144: register struct message *mp;
145: char *file, *disp;
146: int f, *msgvec;
147: FILE *obuf;
148:
149: msgvec = (int *) salloc((msgCount + 2) * sizeof *msgvec);
150: if ((file = snarf(str, &f)) == NOSTR)
151: return(1);
152: if (!f) {
153: *msgvec = first(0, MMNORM);
154: if (*msgvec == NULL) {
155: printf("No messages to %s.\n", cmd);
156: return(1);
157: }
158: msgvec[1] = NULL;
159: }
160: if (f && getmsglist(str, msgvec, 0) < 0)
161: return(1);
162: if ((file = expand(file)) == NOSTR)
163: return(1);
164: printf("\"%s\" ", file);
165: fflush(stdout);
166: if (access(file, 0) >= 0)
167: disp = "[Appended]";
168: else
169: disp = "[New file]";
170: if ((obuf = Fopen(file, "a")) == NULL) {
171: perror(NOSTR);
172: return(1);
173: }
174: for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
175: mp = &message[*ip - 1];
176: touch(mp);
177: if (send(mp, obuf, ignore, NOSTR) < 0) {
178: perror(file);
179: Fclose(obuf);
180: return(1);
181: }
182: if (mark)
183: mp->m_flag |= MSAVED;
184: }
185: fflush(obuf);
186: if (ferror(obuf))
187: perror(file);
188: Fclose(obuf);
189: printf("%s\n", disp);
190: return(0);
191: }
192:
193: /*
194: * Write the indicated messages at the end of the passed
195: * file name, minus header and trailing blank line.
196: */
197:
198: swrite(str)
199: char str[];
200: {
201:
202: return save1(str, 1, "write", ignoreall);
203: }
204:
205: /*
206: * Snarf the file from the end of the command line and
207: * return a pointer to it. If there is no file attached,
208: * just return NOSTR. Put a null in front of the file
209: * name so that the message list processing won't see it,
210: * unless the file name is the only thing on the line, in
211: * which case, return 0 in the reference flag variable.
212: */
213:
214: char *
215: snarf(linebuf, flag)
216: char linebuf[];
217: int *flag;
218: {
219: register char *cp;
220:
221: *flag = 1;
222: cp = strlen(linebuf) + linebuf - 1;
223:
224: /*
225: * Strip away trailing blanks.
226: */
227:
228: while (cp > linebuf && isspace(*cp))
229: cp--;
230: *++cp = 0;
231:
232: /*
233: * Now search for the beginning of the file name.
234: */
235:
236: while (cp > linebuf && !isspace(*cp))
237: cp--;
238: if (*cp == '\0') {
239: printf("No file specified.\n");
240: return(NOSTR);
241: }
242: if (isspace(*cp))
243: *cp++ = 0;
244: else
245: *flag = 0;
246: return(cp);
247: }
248:
249: /*
250: * Delete messages.
251: */
252:
253: delete(msgvec)
254: int msgvec[];
255: {
256: delm(msgvec);
257: return 0;
258: }
259:
260: /*
261: * Delete messages, then type the new dot.
262: */
263:
264: deltype(msgvec)
265: int msgvec[];
266: {
267: int list[2];
268: int lastdot;
269:
270: lastdot = dot - &message[0] + 1;
271: if (delm(msgvec) >= 0) {
272: list[0] = dot - &message[0] + 1;
273: if (list[0] > lastdot) {
274: touch(dot);
275: list[1] = NULL;
276: return(type(list));
277: }
278: printf("At EOF\n");
279: } else
280: printf("No more messages\n");
281: return(0);
282: }
283:
284: /*
285: * Delete the indicated messages.
286: * Set dot to some nice place afterwards.
287: * Internal interface.
288: */
289:
290: delm(msgvec)
291: int *msgvec;
292: {
293: register struct message *mp;
294: register *ip;
295: int last;
296:
297: last = NULL;
298: for (ip = msgvec; *ip != NULL; ip++) {
299: mp = &message[*ip - 1];
300: touch(mp);
301: mp->m_flag |= MDELETED|MTOUCH;
302: mp->m_flag &= ~(MPRESERVE|MSAVED|MBOX);
303: last = *ip;
304: }
305: if (last != NULL) {
306: dot = &message[last-1];
307: last = first(0, MDELETED);
308: if (last != NULL) {
309: dot = &message[last-1];
310: return(0);
311: }
312: else {
313: dot = &message[0];
314: return(-1);
315: }
316: }
317:
318: /*
319: * Following can't happen -- it keeps lint happy
320: */
321:
322: return(-1);
323: }
324:
325: /*
326: * Undelete the indicated messages.
327: */
328:
329: undelete(msgvec)
330: int *msgvec;
331: {
332: register struct message *mp;
333: register *ip;
334:
335: for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
336: mp = &message[*ip - 1];
337: touch(mp);
338: dot = mp;
339: mp->m_flag &= ~MDELETED;
340: }
341: return 0;
342: }
343:
344: /*
345: * Interactively dump core on "core"
346: */
347:
348: core()
349: {
350: int pid;
351: extern union wait wait_status;
352:
353: switch (pid = vfork()) {
354: case -1:
355: perror("fork");
356: return(1);
357: case 0:
358: abort();
359: _exit(1);
360: }
361: printf("Okie dokie");
362: fflush(stdout);
363: wait_child(pid);
364: if (wait_status.w_coredump)
365: printf(" -- Core dumped.\n");
366: else
367: printf(" -- Can't dump core.\n");
368: return 0;
369: }
370:
371: /*
372: * Clobber as many bytes of stack as the user requests.
373: */
374: clobber(argv)
375: char **argv;
376: {
377: register int times;
378:
379: if (argv[0] == 0)
380: times = 1;
381: else
382: times = (atoi(argv[0]) + 511) / 512;
383: clob1(times);
384: return 0;
385: }
386:
387: /*
388: * Clobber the stack.
389: */
390: clob1(n)
391: {
392: char buf[512];
393: register char *cp;
394:
395: if (n <= 0)
396: return;
397: for (cp = buf; cp < &buf[512]; *cp++ = 0xFF)
398: ;
399: clob1(n - 1);
400: }
401:
402: /*
403: * Add the given header fields to the retained list.
404: * If no arguments, print the current list of retained fields.
405: */
406: retfield(list)
407: char *list[];
408: {
409:
410: return ignore1(list, ignore + 1, "retained");
411: }
412:
413: /*
414: * Add the given header fields to the ignored list.
415: * If no arguments, print the current list of ignored fields.
416: */
417: igfield(list)
418: char *list[];
419: {
420:
421: return ignore1(list, ignore, "ignored");
422: }
423:
424: saveretfield(list)
425: char *list[];
426: {
427:
428: return ignore1(list, saveignore + 1, "retained");
429: }
430:
431: saveigfield(list)
432: char *list[];
433: {
434:
435: return ignore1(list, saveignore, "ignored");
436: }
437:
438: ignore1(list, tab, which)
439: char *list[];
440: struct ignoretab *tab;
441: char *which;
442: {
443: char field[BUFSIZ];
444: register int h;
445: register struct ignore *igp;
446: char **ap;
447:
448: if (*list == NOSTR)
449: return igshow(tab, which);
450: for (ap = list; *ap != 0; ap++) {
451: istrcpy(field, *ap);
452: if (member(field, tab))
453: continue;
454: h = hash(field);
455: igp = (struct ignore *) calloc(1, sizeof (struct ignore));
456: igp->i_field = calloc((unsigned) strlen(field) + 1,
457: sizeof (char));
458: strcpy(igp->i_field, field);
459: igp->i_link = tab->i_head[h];
460: tab->i_head[h] = igp;
461: tab->i_count++;
462: }
463: return 0;
464: }
465:
466: /*
467: * Print out all currently retained fields.
468: */
469: igshow(tab, which)
470: struct ignoretab *tab;
471: char *which;
472: {
473: register int h;
474: struct ignore *igp;
475: char **ap, **ring;
476: int igcomp();
477:
478: if (tab->i_count == 0) {
479: printf("No fields currently being %s.\n", which);
480: return 0;
481: }
482: ring = (char **) salloc((tab->i_count + 1) * sizeof (char *));
483: ap = ring;
484: for (h = 0; h < HSHSIZE; h++)
485: for (igp = tab->i_head[h]; igp != 0; igp = igp->i_link)
486: *ap++ = igp->i_field;
487: *ap = 0;
488: qsort((char *) ring, tab->i_count, sizeof (char *), igcomp);
489: for (ap = ring; *ap != 0; ap++)
490: printf("%s\n", *ap);
491: return 0;
492: }
493:
494: /*
495: * Compare two names for sorting ignored field list.
496: */
497: igcomp(l, r)
498: char **l, **r;
499: {
500:
501: return strcmp(*l, *r);
502: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.