OpenSolaris_b135/cmd/mailx/main.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "rcv.h"
#ifndef preSVr4
#include <locale.h>
#endif
/*
* mailx -- a modified version of a University of California at Berkeley
* mail program
*
* Startup -- interface with user.
*/
static void hdrstop(int);
static jmp_buf hdrjmp;
const char *const version = "mailx version 5.0";
/*
* Find out who the user is, copy his mail file (if exists) into
* /tmp/Rxxxxx and set up the message pointers. Then, print out the
* message headers and read user commands.
*
* Command line syntax:
* mailx [ -i ] [ -r address ] [ -h number ] [ -f [ name ] ]
* or:
* mailx [ -i ] [ -r address ] [ -h number ] people ...
*
* and a bunch of other options.
*/
int
main(int argc, char **argv)
{
register char *ef;
register int argp;
int mustsend, f, goerr = 0;
void (*prevint)(int);
int loaded = 0;
struct termio tbuf;
struct termios tbufs;
int c;
char *cwd, *mf;
/*
* Set up a reasonable environment.
* Figure out whether we are being run interactively, set up
* all the temporary files, buffer standard output, and so forth.
*/
#ifndef preSVr4
(void)setlocale(LC_ALL, "");
#endif
#if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
#define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
#endif
(void) textdomain(TEXT_DOMAIN);
#ifdef SIGCONT
sigset(SIGCONT, SIG_DFL);
#endif
rpterr = 0; /* initialize; set when we output to stderr */
progname = argv[0];
if (progname[strlen(progname) - 1] != 'x') {
assign("bsdcompat", "");
assign("escapeok", ""); /* XXX */
}
myegid = getegid();
myrgid = getgid();
myeuid = geteuid();
myruid = getuid();
mypid = getpid();
setgid(myrgid);
setuid(myruid);
inithost();
intty = isatty(0);
if (ioctl(1, TCGETS, &tbufs) < 0) {
if (ioctl(1, TCGETA, &tbuf)==0) {
outtty = 1;
baud = tbuf.c_cflag & CBAUD;
} else
baud = B9600;
} else {
outtty = 1;
baud = cfgetospeed(&tbufs);
}
image = -1;
/*
* Now, determine how we are being used.
* We successively pick off instances of -r, -h, -f, and -i.
* If called as "rmail" we note this fact for letter sending.
* If there is anything left, it is the base of the list
* of users to mail to. Argp will be set to point to the
* first of these users.
*/
ef = NOSTR;
argp = -1;
mustsend = 0;
if (argc > 0 && **argv == 'r')
rmail++;
while ((c = getopt(argc, argv, "b:Bc:defFh:HiInNr:s:u:UtT:vV~")) != EOF)
switch (c) {
case 'e':
/*
* exit status only
*/
exitflg++;
break;
case 'r':
/*
* Next argument is address to be sent along
* to the mailer.
*/
mustsend++;
rflag = optarg;
break;
case 'T':
/*
* Next argument is temp file to write which
* articles have been read/deleted for netnews.
*/
Tflag = optarg;
if ((f = creat(Tflag, TEMPPERM)) < 0) {
perror(Tflag);
exit(1);
}
close(f);
/* fall through for -I too */
/* FALLTHROUGH */
case 'I':
/*
* print newsgroup in header summary
*/
newsflg++;
break;
case 'u':
/*
* Next argument is person's mailbox to use.
* Treated the same as "-f /var/mail/user".
*/
{
static char u[PATHSIZE];
snprintf(u, sizeof (u), "%s%s", maildir, optarg);
ef = u;
break;
}
case 'i':
/*
* User wants to ignore interrupts.
* Set the variable "ignore"
*/
assign("ignore", "");
break;
case 'U':
UnUUCP++;
break;
case 'd':
assign("debug", "");
break;
case 'h':
/*
* Specified sequence number for network.
* This is the number of "hops" made so
* far (count of times message has been
* forwarded) to help avoid infinite mail loops.
*/
mustsend++;
hflag = atoi(optarg);
if (hflag == 0) {
fprintf(stderr,
gettext("-h needs non-zero number\n"));
goerr++;
}
break;
case 's':
/*
* Give a subject field for sending from
* non terminal
*/
mustsend++;
sflag = optarg;
break;
case 'c': /* Cc: from command line */
mustsend++;
cflag = optarg;
break;
case 'b': /* Bcc: from command line */
mustsend++;
bflag = optarg;
break;
case 'f':
/*
* User is specifying file to "edit" with mailx,
* as opposed to reading system mailbox.
* If no argument is given after -f, we read his/her
* $MBOX file or mbox in his/her home directory.
*/
ef = (argc == optind || *argv[optind] == '-')
? "" : argv[optind++];
if (*ef && *ef != '/' && *ef != '+')
cwd = getcwd(NOSTR, PATHSIZE);
break;
case 'F':
Fflag++;
mustsend++;
break;
case 'n':
/*
* User doesn't want to source
* /etc/mail/mailx.rc
*/
nosrc++;
break;
case 'N':
/*
* Avoid initial header printing.
*/
noheader++;
break;
case 'H':
/*
* Print headers and exit
*/
Hflag++;
break;
case 'V':
puts(version);
return 0;
case '~':
/*
* Permit tildas no matter where
* the input is coming from.
*/
assign("escapeok", "");
break;
case 'v':
/*
* Send mailer verbose flag
*/
assign("verbose", "");
break;
case 'B':
/*
* Don't buffer output
* (Line buffered is good enough)
*/
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
break;
case 't':
/*
* Like sendmail -t, read headers from text
*/
tflag++;
mustsend++;
break;
case '?':
default:
goerr++;
break;
}
if (optind != argc)
argp = optind;
/*
* Check for inconsistent arguments.
*/
if (newsflg && ef==NOSTR) {
fprintf(stderr, gettext("Need -f with -I flag\n"));
goerr++;
}
if (ef != NOSTR && argp != -1) {
fprintf(stderr,
gettext("Cannot give -f and people to send to.\n"));
goerr++;
}
if (exitflg && (mustsend || argp != -1))
exit(1); /* nonsense flags involving -e simply exit */
if (tflag && argp != -1) {
fprintf(stderr,
gettext("Ignoring recipients on command line with -t\n"));
argp = -1;
} else if (!tflag && mustsend && argp == -1) {
fprintf(stderr,
gettext("The flags you gave are used only when sending mail.\n"));
goerr++;
}
if (goerr) {
fprintf(stderr,
gettext("Usage: %s -eiIUdFntBNHvV~ -T FILE -u USER -h hops -r address\n"),
progname);
fprintf(stderr,
gettext("\t\t-s SUBJECT -f FILE users\n"));
exit(1);
}
tinit();
input = stdin;
rcvmode = !tflag && argp == -1;
if (!nosrc)
load(MASTER);
if (!rcvmode) {
load(Getf("MAILRC"));
if (tflag)
tmail();
else
mail(&argv[argp]);
exit(senderr ? senderr : rpterr);
}
/*
* Ok, we are reading mail.
* Decide whether we are editing a mailbox or reading
* the system mailbox, and open up the right stuff.
*
* Do this before sourcing the MAILRC, because there might be
* a 'chdir' there that breaks the -f option. But if the
* file specified with -f is a folder name, go ahead and
* source the MAILRC anyway so that "folder" will be defined.
*/
nstrcpy(origname, PATHSIZE, mailname);
editfile = mailname;
if (ef != NOSTR) {
if (ef == NOSTR || *ef == '\0' || *ef == '+') {
load(Getf("MAILRC"));
loaded++;
}
ef = *ef ? safeexpand(ef) : Getf("MBOX");
nstrcpy(origname, PATHSIZE, ef);
if (ef[0] != '/') {
if (cwd == NOSTR)
cwd = getcwd(NOSTR, PATHSIZE);
nstrcat(cwd, PATHSIZE, "/");
nstrcat(cwd, PATHSIZE, ef);
ef = cwd;
}
editfile = ef;
edit++;
}
if (setfile(editfile, edit) < 0)
exit(1);
if (!loaded)
load(Getf("MAILRC"));
if (msgCount > 0 && !noheader && value("header") != NOSTR) {
if (setjmp(hdrjmp) == 0) {
if ((prevint = sigset(SIGINT, SIG_IGN)) != SIG_IGN)
sigset(SIGINT, hdrstop);
announce();
fflush(stdout);
sigset(SIGINT, prevint);
}
}
if (Hflag || (!edit && msgCount == 0)) {
if (!Hflag) {
fprintf(stderr, gettext("No mail for %s\n"), myname);
Verhogen();
}
fflush(stdout);
exit(rpterr);
}
commands();
sigset(SIGHUP, SIG_IGN);
sigset(SIGINT, SIG_IGN);
sigset(SIGQUIT, SIG_IGN);
if (!outtty)
sigset(SIGPIPE, SIG_IGN);
if (edit)
edstop(0);
else {
quit(0);
Verhogen();
}
return (rpterr);
}
/*
* Interrupt printing of the headers.
*/
static void
#ifdef __cplusplus
hdrstop(int)
#else
/* ARGSUSED */
hdrstop(int s)
#endif
{
fflush(stdout);
fprintf(stderr, gettext("\nInterrupt\n"));
# ifdef OLD_BSD_SIGS
sigrelse(SIGINT);
# endif
longjmp(hdrjmp, 1);
}