510 lines
8.9 KiB
C
510 lines
8.9 KiB
C
#ifndef lint
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static char *sccsid = "@(#)cmd1.c 1.1 92/07/30 SMI"; /* from S5R2 1.2 */
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#endif
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#include "rcv.h"
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#include <sys/stat.h>
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#include <ctype.h>
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/*
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* mailx -- a modified version of a University of California at Berkeley
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* mail program
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*
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* User commands.
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*/
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/*
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* Print the current active headings.
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* Don't change dot if invoker didn't give an argument.
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*/
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static int screen;
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headers(msgvec)
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int *msgvec;
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{
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register int n, mesg, flag;
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register struct message *mp;
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int size;
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size = screensize();
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n = msgvec[0];
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if (n != 0)
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screen = (n-1)/size;
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if (screen < 0)
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screen = 0;
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mp = &message[screen * size];
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if (mp >= &message[msgCount])
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mp = &message[msgCount - size];
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if (mp < &message[0])
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mp = &message[0];
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flag = 0;
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mesg = mp - &message[0];
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if (dot != &message[n-1])
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dot = mp;
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if (Hflag)
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mp = message;
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for (; mp < &message[msgCount]; mp++) {
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mesg++;
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if (mp->m_flag & MDELETED)
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continue;
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if (flag++ >= size && !Hflag)
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break;
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printhead(mesg);
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sreset();
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}
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if (flag == 0) {
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printf("No more mail.\n");
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return(1);
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}
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return(0);
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}
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/*
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* Scroll to the next/previous screen
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*/
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scroll(arg)
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char arg[];
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{
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register int s, size;
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int cur[1];
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cur[0] = 0;
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size = screensize();
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s = screen;
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switch (*arg) {
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case 0:
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case '+':
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s++;
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if (s * size > msgCount) {
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printf("On last screenful of messages\n");
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return(0);
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}
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screen = s;
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break;
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case '-':
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if (--s < 0) {
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printf("On first screenful of messages\n");
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return(0);
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}
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screen = s;
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break;
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default:
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printf("Unrecognized scrolling command \"%s\"\n", arg);
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return(1);
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}
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return(headers(cur));
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}
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/*
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* Compute what the screen size should be.
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* We use the following algorithm:
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* If user specifies with screen option, use that.
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* If baud rate < 1200, use 5
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* If baud rate = 1200, use 10
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* If baud rate > 1200, use 20
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*/
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screensize()
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{
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register char *cp;
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register int s;
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#ifdef TIOCGWINSZ
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struct winsize ws;
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#endif
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if ((cp = value("screen")) != NOSTR) {
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s = atoi(cp);
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if (s > 0)
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return(s);
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}
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if (baud < B1200)
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s = 5;
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else if (baud == B1200)
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s = 10;
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#ifdef TIOCGWINSZ
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else if (ioctl(fileno(stdout), TIOCGWINSZ, &ws) == 0 && ws.ws_row != 0)
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s = ws.ws_row - 4;
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#endif
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else
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s = 20;
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return(s);
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}
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/*
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* Print out the headlines for each message
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* in the passed message list.
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*/
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from(msgvec)
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int *msgvec;
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{
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register int *ip;
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for (ip = msgvec; *ip != NULL; ip++) {
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printhead(*ip);
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sreset();
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}
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if (--ip >= msgvec)
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dot = &message[*ip - 1];
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return(0);
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}
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/*
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* Print out the header of a specific message.
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* This is a slight improvement to the standard one.
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*/
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printhead(mesg)
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{
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struct message *mp;
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FILE *ibuf;
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char headline[LINESIZE], *subjline, dispc, curind;
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char *toline, *fromline;
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char pbuf[BUFSIZ];
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struct headline hl;
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register char *cp;
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int showto;
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mp = &message[mesg-1];
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ibuf = setinput(mp);
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readline(ibuf, headline);
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toline = hfield("to", mp);
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subjline = hfield("subject", mp);
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if (subjline == NOSTR)
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subjline = hfield("subj", mp);
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curind = (!Hflag && dot == mp) ? '>' : ' ';
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dispc = ' ';
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showto = 0;
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if (mp->m_flag & MSAVED)
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dispc = '*';
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if (mp->m_flag & MPRESERVE)
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dispc = 'P';
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if ((mp->m_flag & (MREAD|MNEW)) == MNEW)
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dispc = 'N';
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if ((mp->m_flag & (MREAD|MNEW)) == 0)
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dispc = 'U';
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if (mp->m_flag & MBOX)
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dispc = 'M';
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parse(headline, &hl, pbuf);
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/*
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* Netnews interface?
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*/
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if (newsflg) {
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if ( (fromline=hfield("newsgroups",mp)) == NOSTR /* A-news */
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&& (fromline=hfield("article-id",mp)) == NOSTR ) /* B-news */
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fromline = "<>";
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else
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for(cp=fromline; *cp; cp++) { /* limit length */
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if( any(*cp, " ,\n")){
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*cp = '\0';
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break;
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}
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}
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/*
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* else regular.
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*/
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} else {
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if (toline && value("showto") && sender(myname, mesg)) {
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showto = 1;
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fromline = toline;
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} else
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fromline = nameof(mp, 0);
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}
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if (showto) {
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if (subjline != NOSTR)
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printf("%c%c%3d To %-15s %16.16s %4d/%-5ld %-.25s\n",
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curind, dispc, mesg, fromline, hl.l_date,
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mp->m_lines, mp->m_size, subjline);
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else
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printf("%c%c%3d To %-15s %16.16s %4d/%-5ld\n", curind, dispc, mesg,
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fromline, hl.l_date, mp->m_lines, mp->m_size);
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} else {
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if (subjline != NOSTR)
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printf("%c%c%3d %-18s %16.16s %4d/%-5ld %-.25s\n",
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curind, dispc, mesg, fromline, hl.l_date,
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mp->m_lines, mp->m_size, subjline);
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else
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printf("%c%c%3d %-18s %16.16s %4d/%-5ld\n", curind, dispc, mesg,
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fromline, hl.l_date, mp->m_lines, mp->m_size);
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}
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}
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/*
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* Print out the value of dot.
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*/
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pdot()
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{
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printf("%d\n", dot - &message[0] + 1);
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return(0);
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}
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/*
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* Print out all the possible commands.
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*/
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pcmdlist()
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{
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register struct cmd *cp;
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register int cc;
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extern struct cmd cmdtab[];
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printf("Commands are:\n");
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for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) {
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cc += strlen(cp->c_name) + 2;
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if (cc > 72) {
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printf("\n");
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cc = strlen(cp->c_name) + 2;
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}
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if ((cp+1)->c_name != NOSTR)
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printf("%s, ", cp->c_name);
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else
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printf("%s\n", cp->c_name);
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}
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return(0);
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}
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/*
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* Paginate messages, honor ignored fields.
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*/
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more(msgvec)
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int *msgvec;
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{
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return (type1(msgvec, 1, 1));
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}
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/*
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* Paginate messages, even printing ignored fields.
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*/
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More(msgvec)
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int *msgvec;
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{
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return (type1(msgvec, 0, 1));
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}
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/*
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* Type out messages, honor ignored fields.
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*/
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type(msgvec)
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int *msgvec;
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{
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return(type1(msgvec, 1, 0));
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}
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/*
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* Type out messages, even printing ignored fields.
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*/
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Type(msgvec)
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int *msgvec;
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{
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return(type1(msgvec, 0, 0));
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}
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/*
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* Type out the messages requested.
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*/
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jmp_buf pipestop;
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type1(msgvec, doign, page)
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int *msgvec;
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{
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register *ip;
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register struct message *mp;
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register int mesg;
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register char *cp;
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int nlines;
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int brokpipe();
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FILE *obuf;
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void (*saveint)();
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saveint = signal(SIGINT, SIG_IGN);
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obuf = stdout;
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if (setjmp(pipestop)) {
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if (obuf != stdout) {
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pipef = NULL;
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pclose(obuf);
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}
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goto ret0;
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}
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if (intty && outtty && (page || (cp = value("crt")) != NOSTR)) {
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if (!page) {
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nlines = 0;
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for (ip = msgvec, nlines = 0; *ip && ip-msgvec < msgCount; ip++)
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nlines += message[*ip - 1].m_lines;
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}
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if (page || nlines > atoi(cp)) {
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obuf = popen(MORE, "w");
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if (obuf == NULL) {
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perror(MORE);
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obuf = stdout;
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}
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else {
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pipef = obuf;
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sigset(SIGPIPE, brokpipe);
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}
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} else
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signal(SIGINT, saveint);
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} else
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signal(SIGINT, saveint);
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for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
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mesg = *ip;
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touch(mesg);
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mp = &message[mesg-1];
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dot = mp;
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print(mp, obuf, doign);
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}
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if (obuf != stdout) {
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pipef = NULL;
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pclose(obuf);
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}
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ret0:
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sigset(SIGPIPE, SIG_DFL);
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signal(SIGINT, saveint);
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return(0);
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}
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/*
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* Respond to a broken pipe signal --
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* probably caused by user quitting more.
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*/
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brokpipe()
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{
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# ifndef VMUNIX
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signal(SIGPIPE, brokpipe);
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# endif
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longjmp(pipestop, 1);
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}
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/*
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* Print the indicated message on standard output.
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*/
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print(mp, obuf, doign)
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register struct message *mp;
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FILE *obuf;
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{
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if (value("quiet") == NOSTR)
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fprintf(obuf, "Message %2d:\n", mp - &message[0] + 1);
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touch(mp - &message[0] + 1);
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(void) msend(mp, obuf, doign, fputs);
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}
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/*
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* Print the top so many lines of each desired message.
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* The number of lines is taken from the variable "toplines"
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* and defaults to 5.
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*/
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int top_linecount, top_maxlines, top_lineb;
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jmp_buf top_buf;
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top(msgvec)
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int *msgvec;
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{
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register int *ip;
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register struct message *mp;
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register int mesg;
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char *valtop;
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int topputs();
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top_maxlines = 5;
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valtop = value("toplines");
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if (valtop != NOSTR) {
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top_maxlines = atoi(valtop);
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if (top_maxlines < 0 || top_maxlines > 10000)
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top_maxlines = 5;
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}
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top_lineb = 1;
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for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
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mesg = *ip;
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touch(mesg);
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mp = &message[mesg-1];
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dot = mp;
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if (value("quiet") == NOSTR)
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printf("Message %2d:\n", mesg);
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if (!top_lineb)
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printf("\n");
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top_linecount = 0;
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if (setjmp(top_buf) == 0)
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(void) msend(mp, stdout, (int)value("alwaysignore"),
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topputs);
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}
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return(0);
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}
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topputs(line, obuf)
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char *line;
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FILE *obuf;
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{
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if (top_linecount++ >= top_maxlines)
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longjmp(top_buf, 1);
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top_lineb = blankline(line);
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fputs(line, obuf);
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}
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/*
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* Touch all the given messages so that they will
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* get mboxed.
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*/
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stouch(msgvec)
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int msgvec[];
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{
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register int *ip;
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for (ip = msgvec; *ip != 0; ip++) {
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dot = &message[*ip-1];
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dot->m_flag |= MTOUCH;
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dot->m_flag &= ~MPRESERVE;
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}
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return(0);
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}
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/*
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* Make sure all passed messages get mboxed.
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*/
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mboxit(msgvec)
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int msgvec[];
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{
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register int *ip;
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for (ip = msgvec; *ip != 0; ip++) {
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dot = &message[*ip-1];
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dot->m_flag |= MTOUCH|MBOX;
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dot->m_flag &= ~MPRESERVE;
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}
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return(0);
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}
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/*
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* List the folders the user currently has.
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*/
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folders(arglist)
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char **arglist;
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{
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char dirname[BUFSIZ], cmd[BUFSIZ];
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if (getfold(dirname) < 0) {
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printf("No value set for \"folder\"\n");
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return(-1);
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}
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if (*arglist) {
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strcat(dirname, "/");
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strcat(dirname, *arglist);
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}
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sprintf(cmd, "%s %s", LS, dirname);
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return(system(cmd));
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}
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