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BSD 4_3_Tahoe release
[unix-history] / usr / src / ucb / Mail / cmd1.c
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at 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'' without express or implied warranty.
*/
#ifdef notdef
static char sccsid[] = "@(#)cmd1.c 5.5 (Berkeley) 2/18/88";
#endif /* notdef */
#include "rcv.h"
#include <sys/stat.h>
#include <sys/wait.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);
sreset();
}
if (flag == 0) {
printf("No more mail.\n");
return(1);
}
return(0);
}
/*
* Set the list of alternate names for out host.
*/
local(namelist)
char **namelist;
{
register int c;
register char **ap, **ap2, *cp;
c = argcount(namelist) + 1;
if (c == 1) {
if (localnames == 0)
return(0);
for (ap = localnames; *ap; ap++)
printf("%s ", *ap);
printf("\n");
return(0);
}
if (localnames != 0)
cfree((char *) localnames);
localnames = (char **) calloc((unsigned) c, sizeof (char *));
for (ap = namelist, ap2 = localnames; *ap; ap++, ap2++) {
cp = (char *) calloc((unsigned) strlen(*ap) + 1, sizeof (char));
strcpy(cp, *ap);
*ap2 = cp;
}
*ap2 = 0;
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);
sreset();
}
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];
readline(setinput(mp), headline);
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 int mesg;
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 (intty && outtty && (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 > atoi(cp)) {
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++) {
mesg = *ip;
touch(mesg);
mp = &message[mesg-1];
dot = mp;
if (value("quiet") == NOSTR)
fprintf(obuf, "Message %d:\n", mesg);
send(mp, obuf, doign);
}
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;
register int mesg;
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++) {
mesg = *ip;
touch(mesg);
mp = &message[mesg-1];
dot = mp;
if (value("quiet") == NOSTR)
printf("Message %2d:\n", mesg);
ibuf = setinput(mp);
c = mp->m_lines;
if (!lineb)
printf("\n");
for (lines = 0; lines < c && lines <= topl; lines++) {
if (readline(ibuf, linebuf) < 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];
int pid, e;
union wait s;
if (getfold(dirname) < 0) {
printf("No value set for \"folder\"\n");
return(-1);
}
switch ((pid = fork())) {
case 0:
execlp("ls", "ls", dirname, 0);
_exit(1);
case -1:
perror("fork");
return(-1);
default:
while ((e = wait(&s)) != -1 && e != pid)
;
}
return(0);
}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.