FreeBSD-5.3/usr.bin/mail/cmd1.c
/*-
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)cmd1.c 8.2 (Berkeley) 4/20/95";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/usr.bin/mail/cmd1.c,v 1.7 2002/06/30 05:25:05 obrien Exp $");
#include "rcv.h"
#include "extern.h"
/*
* Mail -- a mail program
*
* User commands.
*/
extern const struct cmd cmdtab[];
/*
* Print the current active headings.
* Don't change dot if invoker didn't give an argument.
*/
static int screen;
int
headers(msgvec)
int *msgvec;
{
int n, mesg, flag, size;
struct message *mp;
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
*/
int
scroll(arg)
char arg[];
{
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.
*/
int
screensize()
{
int s;
char *cp;
if ((cp = value("screen")) != NULL && (s = atoi(cp)) > 0)
return (s);
return (screenheight - 4);
}
/*
* Print out the headlines for each message
* in the passed message list.
*/
int
from(msgvec)
int *msgvec;
{
int *ip;
for (ip = msgvec; *ip != 0; 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.
*/
void
printhead(mesg)
int mesg;
{
struct message *mp;
char headline[LINESIZE], wcount[LINESIZE], *subjline, dispc, curind;
char pbuf[BUFSIZ];
struct headline hl;
int subjlen;
char *name;
mp = &message[mesg-1];
(void)readline(setinput(mp), headline, LINESIZE);
if ((subjline = hfield("subject", mp)) == NULL)
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, "%3ld/%-5ld", mp->m_lines, mp->m_size);
subjlen = screenwidth - 50 - strlen(wcount);
name = value("show-rcpt") != NULL ?
skin(hfield("to", mp)) : nameof(mp, 0);
if (subjline == NULL || subjlen < 0) /* pretty pathetic */
printf("%c%c%3d %-20.20s %16.16s %s\n",
curind, dispc, mesg, name, hl.l_date, wcount);
else
printf("%c%c%3d %-20.20s %16.16s %s \"%.*s\"\n",
curind, dispc, mesg, name, hl.l_date, wcount,
subjlen, subjline);
}
/*
* Print out the value of dot.
*/
int
pdot()
{
printf("%d\n", dot - &message[0] + 1);
return (0);
}
/*
* Print out all the possible commands.
*/
int
pcmdlist()
{
const struct cmd *cp;
int cc;
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 != NULL)
printf("%s, ", cp->c_name);
else
printf("%s\n", cp->c_name);
}
return (0);
}
/*
* Paginate messages, honor ignored fields.
*/
int
more(msgvec)
int *msgvec;
{
return (type1(msgvec, 1, 1));
}
/*
* Paginate messages, even printing ignored fields.
*/
int
More(msgvec)
int *msgvec;
{
return (type1(msgvec, 0, 1));
}
/*
* Type out messages, honor ignored fields.
*/
int
type(msgvec)
int *msgvec;
{
return (type1(msgvec, 1, 0));
}
/*
* Type out messages, even printing ignored fields.
*/
int
Type(msgvec)
int *msgvec;
{
return (type1(msgvec, 0, 0));
}
/*
* Type out the messages requested.
*/
jmp_buf pipestop;
int
type1(msgvec, doign, page)
int *msgvec;
int doign, page;
{
int nlines, *ip;
struct message *mp;
char *cp;
FILE *obuf;
obuf = stdout;
if (setjmp(pipestop))
goto close_pipe;
if (value("interactive") != NULL &&
(page || (cp = value("crt")) != NULL)) {
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 = _PATH_MORE;
obuf = Popen(cp, "w");
if (obuf == NULL) {
warnx("%s", cp);
obuf = stdout;
} else
(void)signal(SIGPIPE, brokpipe);
}
}
/*
* Send messages to the output.
*
*/
for (ip = msgvec; *ip && ip - msgvec < msgCount; ip++) {
mp = &message[*ip - 1];
touch(mp);
dot = mp;
if (value("quiet") == NULL)
fprintf(obuf, "Message %d:\n", *ip);
(void)sendmessage(mp, obuf, doign ? ignore : 0, NULL);
}
close_pipe:
if (obuf != stdout) {
/*
* Ignore SIGPIPE so it can't cause a duplicate close.
*/
(void)signal(SIGPIPE, SIG_IGN);
(void)Pclose(obuf);
(void)signal(SIGPIPE, SIG_DFL);
}
return (0);
}
/*
* Respond to a broken pipe signal --
* probably caused by quitting more.
*/
/*ARGSUSED*/
void
brokpipe(signo)
int signo;
{
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.
*/
int
top(msgvec)
int *msgvec;
{
int *ip;
struct message *mp;
int c, topl, lines, lineb;
char *valtop, linebuf[LINESIZE];
FILE *ibuf;
topl = 5;
valtop = value("toplines");
if (valtop != NULL) {
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") == NULL)
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, sizeof(linebuf)) < 0)
break;
puts(linebuf);
lineb = strspn(linebuf, " \t") == strlen(linebuf);
}
}
return (0);
}
/*
* Touch all the given messages so that they will
* get mboxed.
*/
int
stouch(msgvec)
int msgvec[];
{
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.
*/
int
mboxit(msgvec)
int msgvec[];
{
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.
*/
int
folders()
{
char dirname[PATHSIZE];
char *cmd;
if (getfold(dirname, sizeof(dirname)) < 0) {
printf("No value set for \"folder\"\n");
return (1);
}
if ((cmd = value("LISTER")) == NULL)
cmd = "ls";
(void)run_command(cmd, 0, -1, -1, dirname, NULL, NULL);
return (0);
}
/*
* Update the mail file with any new messages that have
* come in since we started reading mail.
*/
int
inc(v)
void *v;
{
int nmsg, mdot;
nmsg = incfile();
if (nmsg == 0)
printf("No new mail.\n");
else if (nmsg > 0) {
mdot = newfileinfo(msgCount - nmsg);
dot = &message[mdot - 1];
} else
printf("\"inc\" command failed...\n");
return (0);
}