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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)cmd2.c 5.12 (Berkeley) 2/6/89";
- #endif /* not lint */
-
- #include "rcv.h"
- #include <sys/wait.h>
-
- /*
- * Mail -- a mail program
- *
- * More user commands.
- */
-
- /*
- * If any arguments were given, go to the next applicable argument
- * following dot, otherwise, go to the next applicable message.
- * If given as first command with no arguments, print first message.
- */
-
- next(msgvec)
- int *msgvec;
- {
- register struct message *mp;
- register int *ip, *ip2;
- int list[2], mdot;
-
- if (*msgvec != NULL) {
-
- /*
- * If some messages were supplied, find the
- * first applicable one following dot using
- * wrap around.
- */
-
- mdot = dot - &message[0] + 1;
-
- /*
- * Find the first message in the supplied
- * message list which follows dot.
- */
-
- for (ip = msgvec; *ip != NULL; ip++)
- if (*ip > mdot)
- break;
- if (*ip == NULL)
- ip = msgvec;
- ip2 = ip;
- do {
- mp = &message[*ip2 - 1];
- if ((mp->m_flag & MDELETED) == 0) {
- dot = mp;
- goto hitit;
- }
- if (*ip2 != NULL)
- ip2++;
- if (*ip2 == NULL)
- ip2 = msgvec;
- } while (ip2 != ip);
- printf("No messages applicable\n");
- return(1);
- }
-
- /*
- * If this is the first command, select message 1.
- * Note that this must exist for us to get here at all.
- */
-
- if (!sawcom)
- goto hitit;
-
- /*
- * Just find the next good message after dot, no
- * wraparound.
- */
-
- for (mp = dot+1; mp < &message[msgCount]; mp++)
- if ((mp->m_flag & (MDELETED|MSAVED)) == 0)
- break;
- if (mp >= &message[msgCount]) {
- printf("At EOF\n");
- return(0);
- }
- dot = mp;
- hitit:
- /*
- * Print dot.
- */
-
- list[0] = dot - &message[0] + 1;
- list[1] = NULL;
- return(type(list));
- }
-
- /*
- * Save a message in a file. Mark the message as saved
- * so we can discard when the user quits.
- */
- save(str)
- char str[];
- {
-
- return save1(str, 1, "save", saveignore);
- }
-
- /*
- * Copy a message to a file without affected its saved-ness
- */
- copycmd(str)
- char str[];
- {
-
- return save1(str, 0, "copy", saveignore);
- }
-
- /*
- * Save/copy the indicated messages at the end of the passed file name.
- * If mark is true, mark the message "saved."
- */
- save1(str, mark, cmd, ignore)
- char str[];
- char *cmd;
- struct ignoretab *ignore;
- {
- register int *ip;
- register struct message *mp;
- char *file, *disp;
- int f, *msgvec;
- FILE *obuf;
-
- msgvec = (int *) salloc((msgCount + 2) * sizeof *msgvec);
- if ((file = snarf(str, &f)) == NOSTR)
- return(1);
- if (!f) {
- *msgvec = first(0, MMNORM);
- if (*msgvec == NULL) {
- printf("No messages to %s.\n", cmd);
- return(1);
- }
- msgvec[1] = NULL;
- }
- if (f && getmsglist(str, msgvec, 0) < 0)
- return(1);
- if ((file = expand(file)) == NOSTR)
- return(1);
- printf("\"%s\" ", file);
- fflush(stdout);
- if (access(file, 0) >= 0)
- disp = "[Appended]";
- else
- disp = "[New file]";
- if ((obuf = fopen(file, "a")) == NULL) {
- perror(NOSTR);
- return(1);
- }
- for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
- mp = &message[*ip - 1];
- touch(mp);
- if (send(mp, obuf, ignore, NOSTR) < 0) {
- perror(file);
- fclose(obuf);
- return(1);
- }
- if (mark)
- mp->m_flag |= MSAVED;
- }
- fflush(obuf);
- if (ferror(obuf))
- perror(file);
- fclose(obuf);
- printf("%s\n", disp);
- return(0);
- }
-
- /*
- * Write the indicated messages at the end of the passed
- * file name, minus header and trailing blank line.
- */
-
- swrite(str)
- char str[];
- {
-
- return save1(str, 1, "write", ignoreall);
- }
-
- /*
- * Snarf the file from the end of the command line and
- * return a pointer to it. If there is no file attached,
- * just return NOSTR. Put a null in front of the file
- * name so that the message list processing won't see it,
- * unless the file name is the only thing on the line, in
- * which case, return 0 in the reference flag variable.
- */
-
- char *
- snarf(linebuf, flag)
- char linebuf[];
- int *flag;
- {
- register char *cp;
-
- *flag = 1;
- cp = strlen(linebuf) + linebuf - 1;
-
- /*
- * Strip away trailing blanks.
- */
-
- while (cp > linebuf && isspace(*cp))
- cp--;
- *++cp = 0;
-
- /*
- * Now search for the beginning of the file name.
- */
-
- while (cp > linebuf && !isspace(*cp))
- cp--;
- if (*cp == '\0') {
- printf("No file specified.\n");
- return(NOSTR);
- }
- if (isspace(*cp))
- *cp++ = 0;
- else
- *flag = 0;
- return(cp);
- }
-
- /*
- * Delete messages.
- */
-
- delete(msgvec)
- int msgvec[];
- {
- delm(msgvec);
- return 0;
- }
-
- /*
- * Delete messages, then type the new dot.
- */
-
- deltype(msgvec)
- int msgvec[];
- {
- int list[2];
- int lastdot;
-
- lastdot = dot - &message[0] + 1;
- if (delm(msgvec) >= 0) {
- list[0] = dot - &message[0] + 1;
- if (list[0] > lastdot) {
- touch(dot);
- list[1] = NULL;
- return(type(list));
- }
- printf("At EOF\n");
- } else
- printf("No more messages\n");
- return(0);
- }
-
- /*
- * Delete the indicated messages.
- * Set dot to some nice place afterwards.
- * Internal interface.
- */
-
- delm(msgvec)
- int *msgvec;
- {
- register struct message *mp;
- register *ip;
- int last;
-
- last = NULL;
- for (ip = msgvec; *ip != NULL; ip++) {
- mp = &message[*ip - 1];
- touch(mp);
- mp->m_flag |= MDELETED|MTOUCH;
- mp->m_flag &= ~(MPRESERVE|MSAVED|MBOX);
- last = *ip;
- }
- if (last != NULL) {
- dot = &message[last-1];
- last = first(0, MDELETED);
- if (last != NULL) {
- dot = &message[last-1];
- return(0);
- }
- else {
- dot = &message[0];
- return(-1);
- }
- }
-
- /*
- * Following can't happen -- it keeps lint happy
- */
-
- return(-1);
- }
-
- /*
- * Undelete the indicated messages.
- */
-
- undelete(msgvec)
- int *msgvec;
- {
- register struct message *mp;
- register *ip;
-
- for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
- mp = &message[*ip - 1];
- touch(mp);
- dot = mp;
- mp->m_flag &= ~MDELETED;
- }
- return 0;
- }
-
- /*
- * Interactively dump core on "core"
- */
-
- core()
- {
- int pid;
- extern union wait wait_status;
-
- switch (pid = vfork()) {
- case -1:
- perror("fork");
- return(1);
- case 0:
- abort();
- _exit(1);
- }
- printf("Okie dokie");
- fflush(stdout);
- wait_child(pid);
- if (wait_status.w_coredump)
- printf(" -- Core dumped.\n");
- else
- printf(" -- Can't dump core.\n");
- return 0;
- }
-
- /*
- * Clobber as many bytes of stack as the user requests.
- */
- clobber(argv)
- char **argv;
- {
- register int times;
-
- if (argv[0] == 0)
- times = 1;
- else
- times = (atoi(argv[0]) + 511) / 512;
- clob1(times);
- return 0;
- }
-
- /*
- * Clobber the stack.
- */
- clob1(n)
- {
- char buf[512];
- register char *cp;
-
- if (n <= 0)
- return;
- for (cp = buf; cp < &buf[512]; *cp++ = 0xFF)
- ;
- clob1(n - 1);
- }
-
- /*
- * Add the given header fields to the retained list.
- * If no arguments, print the current list of retained fields.
- */
- retfield(list)
- char *list[];
- {
-
- return ignore1(list, ignore + 1, "retained");
- }
-
- /*
- * Add the given header fields to the ignored list.
- * If no arguments, print the current list of ignored fields.
- */
- igfield(list)
- char *list[];
- {
-
- return ignore1(list, ignore, "ignored");
- }
-
- saveretfield(list)
- char *list[];
- {
-
- return ignore1(list, saveignore + 1, "retained");
- }
-
- saveigfield(list)
- char *list[];
- {
-
- return ignore1(list, saveignore, "ignored");
- }
-
- ignore1(list, tab, which)
- char *list[];
- struct ignoretab *tab;
- char *which;
- {
- char field[BUFSIZ];
- register int h;
- register struct ignore *igp;
- char **ap;
-
- if (*list == NOSTR)
- return igshow(tab, which);
- for (ap = list; *ap != 0; ap++) {
- istrcpy(field, *ap);
- if (member(field, tab))
- continue;
- h = hash(field);
- igp = (struct ignore *) calloc(1, sizeof (struct ignore));
- igp->i_field = calloc((unsigned) strlen(field) + 1,
- sizeof (char));
- strcpy(igp->i_field, field);
- igp->i_link = tab->i_head[h];
- tab->i_head[h] = igp;
- tab->i_count++;
- }
- return 0;
- }
-
- /*
- * Print out all currently retained fields.
- */
- igshow(tab, which)
- struct ignoretab *tab;
- char *which;
- {
- register int h;
- struct ignore *igp;
- char **ap, **ring;
- int igcomp();
-
- if (tab->i_count == 0) {
- printf("No fields currently being %s.\n", which);
- return 0;
- }
- ring = (char **) salloc((tab->i_count + 1) * sizeof (char *));
- ap = ring;
- for (h = 0; h < HSHSIZE; h++)
- for (igp = tab->i_head[h]; igp != 0; igp = igp->i_link)
- *ap++ = igp->i_field;
- *ap = 0;
- qsort((char *) ring, tab->i_count, sizeof (char *), igcomp);
- for (ap = ring; *ap != 0; ap++)
- printf("%s\n", *ap);
- return 0;
- }
-
- /*
- * Compare two names for sorting ignored field list.
- */
- igcomp(l, r)
- char **l, **r;
- {
-
- return strcmp(*l, *r);
- }
-