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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[] = "@(#)cmd1.c 5.18 (Berkeley) 1/16/89";
- #endif /* not lint */
-
- #include "rcv.h"
-
- /*
- * Mail -- a mail program
- *
- * User commands.
- */
-
- /*
- * Print the current active headings.
- * Don't change dot if invoker didn't give an argument.
- */
-
- static int screen;
-
- headers(msgvec)
- int *msgvec;
- {
- register int n, mesg, flag;
- register struct message *mp;
- int size;
-
- size = screensize();
- n = msgvec[0];
- if (n != 0)
- screen = (n-1)/size;
- if (screen < 0)
- screen = 0;
- mp = &message[screen * size];
- if (mp >= &message[msgCount])
- mp = &message[msgCount - size];
- if (mp < &message[0])
- mp = &message[0];
- flag = 0;
- mesg = mp - &message[0];
- if (dot != &message[n-1])
- dot = mp;
- for (; mp < &message[msgCount]; mp++) {
- mesg++;
- if (mp->m_flag & MDELETED)
- continue;
- if (flag++ >= size)
- break;
- printhead(mesg);
- }
- if (flag == 0) {
- printf("No more mail.\n");
- return(1);
- }
- return(0);
- }
-
- /*
- * Scroll to the next/previous screen
- */
- scroll(arg)
- char arg[];
- {
- register int s, size;
- int cur[1];
-
- cur[0] = 0;
- size = screensize();
- s = screen;
- switch (*arg) {
- case 0:
- case '+':
- s++;
- if (s * size > msgCount) {
- printf("On last screenful of messages\n");
- return(0);
- }
- screen = s;
- break;
-
- case '-':
- if (--s < 0) {
- printf("On first screenful of messages\n");
- return(0);
- }
- screen = s;
- break;
-
- default:
- printf("Unrecognized scrolling command \"%s\"\n", arg);
- return(1);
- }
- return(headers(cur));
- }
-
- /*
- * Compute screen size.
- */
- screensize()
- {
- int s;
- char *cp;
-
- if ((cp = value("screen")) != NOSTR && (s = atoi(cp)) > 0)
- return s;
- return screenheight - 4;
- }
-
- /*
- * Print out the headlines for each message
- * in the passed message list.
- */
-
- from(msgvec)
- int *msgvec;
- {
- register int *ip;
-
- for (ip = msgvec; *ip != NULL; ip++)
- printhead(*ip);
- if (--ip >= msgvec)
- dot = &message[*ip - 1];
- return(0);
- }
-
- /*
- * Print out the header of a specific message.
- * This is a slight improvement to the standard one.
- */
-
- printhead(mesg)
- {
- struct message *mp;
- char headline[LINESIZE], wcount[LINESIZE], *subjline, dispc, curind;
- char pbuf[BUFSIZ];
- struct headline hl;
- int subjlen;
-
- mp = &message[mesg-1];
- (void) readline(setinput(mp), headline, LINESIZE);
- if ((subjline = hfield("subject", mp)) == NOSTR)
- subjline = hfield("subj", mp);
- /*
- * Bletch!
- */
- curind = dot == mp ? '>' : ' ';
- dispc = ' ';
- if (mp->m_flag & MSAVED)
- dispc = '*';
- if (mp->m_flag & MPRESERVE)
- dispc = 'P';
- if ((mp->m_flag & (MREAD|MNEW)) == MNEW)
- dispc = 'N';
- if ((mp->m_flag & (MREAD|MNEW)) == 0)
- dispc = 'U';
- if (mp->m_flag & MBOX)
- dispc = 'M';
- parse(headline, &hl, pbuf);
- sprintf(wcount, "%3d/%-4ld", mp->m_lines, mp->m_size);
- subjlen = screenwidth - 50 - strlen(wcount);
- if (subjline == NOSTR || subjlen < 0) /* pretty pathetic */
- printf("%c%c%3d %-20.20s %16.16s %s\n",
- curind, dispc, mesg, nameof(mp, 0), hl.l_date, wcount);
- else
- printf("%c%c%3d %-20.20s %16.16s %s \"%.*s\"\n",
- curind, dispc, mesg, nameof(mp, 0), hl.l_date, wcount,
- subjlen, subjline);
- }
-
- /*
- * Print out the value of dot.
- */
-
- pdot()
- {
- printf("%d\n", dot - &message[0] + 1);
- return(0);
- }
-
- /*
- * Print out all the possible commands.
- */
-
- pcmdlist()
- {
- register struct cmd *cp;
- register int cc;
- extern struct cmd cmdtab[];
-
- printf("Commands are:\n");
- for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) {
- cc += strlen(cp->c_name) + 2;
- if (cc > 72) {
- printf("\n");
- cc = strlen(cp->c_name) + 2;
- }
- if ((cp+1)->c_name != NOSTR)
- printf("%s, ", cp->c_name);
- else
- printf("%s\n", cp->c_name);
- }
- return(0);
- }
-
- /*
- * Paginate messages, honor ignored fields.
- */
- more(msgvec)
- int *msgvec;
- {
- return (type1(msgvec, 1, 1));
- }
-
- /*
- * Paginate messages, even printing ignored fields.
- */
- More(msgvec)
- int *msgvec;
- {
-
- return (type1(msgvec, 0, 1));
- }
-
- /*
- * Type out messages, honor ignored fields.
- */
- type(msgvec)
- int *msgvec;
- {
-
- return(type1(msgvec, 1, 0));
- }
-
- /*
- * Type out messages, even printing ignored fields.
- */
- Type(msgvec)
- int *msgvec;
- {
-
- return(type1(msgvec, 0, 0));
- }
-
- /*
- * Type out the messages requested.
- */
- jmp_buf pipestop;
-
- type1(msgvec, doign, page)
- int *msgvec;
- {
- register *ip;
- register struct message *mp;
- register char *cp;
- int nlines;
- int brokpipe();
- FILE *obuf;
-
- obuf = stdout;
- if (setjmp(pipestop)) {
- if (obuf != stdout) {
- pipef = NULL;
- Pclose(obuf);
- }
- signal(SIGPIPE, SIG_DFL);
- return(0);
- }
- if (value("interactive") != NOSTR &&
- (page || (cp = value("crt")) != NOSTR)) {
- nlines = 0;
- if (!page) {
- for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++)
- nlines += message[*ip - 1].m_lines;
- }
- if (page || nlines > (*cp ? atoi(cp) : realscreenheight)) {
- cp = value("PAGER");
- if (cp == NULL || *cp == '\0')
- cp = MORE;
- obuf = Popen(cp, "w");
- if (obuf == NULL) {
- perror(cp);
- obuf = stdout;
- } else {
- pipef = obuf;
- signal(SIGPIPE, brokpipe);
- }
- }
- }
- for (ip = msgvec; *ip && ip - msgvec < msgCount; ip++) {
- mp = &message[*ip - 1];
- touch(mp);
- dot = mp;
- if (value("quiet") == NOSTR)
- fprintf(obuf, "Message %d:\n", *ip);
- (void) send(mp, obuf, doign ? ignore : 0, NOSTR);
- }
- if (obuf != stdout) {
- pipef = NULL;
- Pclose(obuf);
- }
- signal(SIGPIPE, SIG_DFL);
- return(0);
- }
-
- /*
- * Respond to a broken pipe signal --
- * probably caused by using quitting more.
- */
-
- brokpipe()
- {
- longjmp(pipestop, 1);
- }
-
- /*
- * Print the top so many lines of each desired message.
- * The number of lines is taken from the variable "toplines"
- * and defaults to 5.
- */
-
- top(msgvec)
- int *msgvec;
- {
- register int *ip;
- register struct message *mp;
- int c, topl, lines, lineb;
- char *valtop, linebuf[LINESIZE];
- FILE *ibuf;
-
- topl = 5;
- valtop = value("toplines");
- if (valtop != NOSTR) {
- topl = atoi(valtop);
- if (topl < 0 || topl > 10000)
- topl = 5;
- }
- lineb = 1;
- for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
- mp = &message[*ip - 1];
- touch(mp);
- dot = mp;
- if (value("quiet") == NOSTR)
- printf("Message %d:\n", *ip);
- ibuf = setinput(mp);
- c = mp->m_lines;
- if (!lineb)
- printf("\n");
- for (lines = 0; lines < c && lines <= topl; lines++) {
- if (readline(ibuf, linebuf, LINESIZE) < 0)
- break;
- puts(linebuf);
- lineb = blankline(linebuf);
- }
- }
- return(0);
- }
-
- /*
- * Touch all the given messages so that they will
- * get mboxed.
- */
- stouch(msgvec)
- int msgvec[];
- {
- register int *ip;
-
- for (ip = msgvec; *ip != 0; ip++) {
- dot = &message[*ip-1];
- dot->m_flag |= MTOUCH;
- dot->m_flag &= ~MPRESERVE;
- }
- return(0);
- }
-
- /*
- * Make sure all passed messages get mboxed.
- */
-
- mboxit(msgvec)
- int msgvec[];
- {
- register int *ip;
-
- for (ip = msgvec; *ip != 0; ip++) {
- dot = &message[*ip-1];
- dot->m_flag |= MTOUCH|MBOX;
- dot->m_flag &= ~MPRESERVE;
- }
- return(0);
- }
-
- /*
- * List the folders the user currently has.
- */
- folders()
- {
- char dirname[BUFSIZ];
- char *cmd;
-
- if (getfold(dirname) < 0) {
- printf("No value set for \"folder\"\n");
- return 1;
- }
- if ((cmd = value("LISTER")) == NOSTR)
- cmd = "ls";
- (void) run_command(cmd, 0, -1, -1, dirname, NOSTR);
- return 0;
- }
-