8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
350 lines
8.3 KiB
C
350 lines
8.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "rcv.h"
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#include <fcntl.h>
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#include "extern.h"
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/*
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* Mail -- a mail program
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*
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* Startup -- interface with user.
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*/
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static jmp_buf hdrjmp;
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extern const char *version;
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int
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main(int argc, char *argv[])
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{
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int i;
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struct name *to, *cc, *bcc, *smopts;
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char *subject, *replyto;
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char *ef, *rc;
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char nosrc = 0;
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sig_t prevint;
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/*
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* Set up a reasonable environment.
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* Figure out whether we are being run interactively,
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* start the SIGCHLD catcher, and so forth.
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*/
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(void)signal(SIGCHLD, sigchild);
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if (isatty(0))
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assign("interactive", "");
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image = -1;
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/*
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* Now, determine how we are being used.
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* We successively pick off - flags.
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* If there is anything left, it is the base of the list
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* of users to mail to. Argp will be set to point to the
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* first of these users.
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*/
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ef = NULL;
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to = NULL;
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cc = NULL;
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bcc = NULL;
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smopts = NULL;
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subject = NULL;
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while ((i = getopt(argc, argv, "FEHINT:b:c:edfins:u:v")) != -1) {
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switch (i) {
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case 'T':
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/*
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* Next argument is temp file to write which
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* articles have been read/deleted for netnews.
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*/
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Tflag = optarg;
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if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY,
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0600)) < 0)
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err(1, "%s", Tflag);
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(void)close(i);
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break;
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case 'u':
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/*
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* Next argument is person to pretend to be.
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*/
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myname = optarg;
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unsetenv("MAIL");
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break;
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case 'i':
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/*
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* User wants to ignore interrupts.
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* Set the variable "ignore"
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*/
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assign("ignore", "");
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break;
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case 'd':
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debug++;
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break;
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case 'e':
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/*
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* User wants to check mail and exit.
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*/
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assign("checkmode", "");
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break;
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case 'H':
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/*
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* User wants a header summary only.
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*/
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assign("headersummary", "");
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break;
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case 'F':
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/*
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* User wants to record messages to files
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* named after first recipient username.
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*/
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assign("recordrecip", "");
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break;
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case 's':
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/*
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* Give a subject field for sending from
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* non terminal
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*/
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subject = optarg;
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break;
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case 'f':
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/*
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* User is specifying file to "edit" with Mail,
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* as opposed to reading system mailbox.
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* If no argument is given after -f, we read his
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* mbox file.
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*
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* getopt() can't handle optional arguments, so here
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* is an ugly hack to get around it.
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*/
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if ((argv[optind] != NULL) && (argv[optind][0] != '-'))
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ef = argv[optind++];
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else
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ef = "&";
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break;
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case 'n':
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/*
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* User doesn't want to source /usr/lib/Mail.rc
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*/
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nosrc++;
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break;
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case 'N':
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/*
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* Avoid initial header printing.
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*/
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assign("noheader", "");
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break;
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case 'v':
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/*
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* Send mailer verbose flag
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*/
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assign("verbose", "");
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break;
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case 'I':
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/*
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* We're interactive
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*/
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assign("interactive", "");
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break;
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case 'c':
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/*
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* Get Carbon Copy Recipient list
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*/
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cc = cat(cc, nalloc(optarg, GCC));
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break;
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case 'b':
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/*
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* Get Blind Carbon Copy Recipient list
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*/
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bcc = cat(bcc, nalloc(optarg, GBCC));
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break;
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case 'E':
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/*
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* Don't send empty files.
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*/
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assign("dontsendempty", "");
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break;
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case '?':
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fprintf(stderr, "\
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Usage: %s [-dEiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ...\n\
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%*s [-sendmail-option ...]\n\
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%s [-dEHiInNv] [-F] -f [name]\n\
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%s [-dEHiInNv] [-F] [-u user]\n\
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%s [-d] -e [-f name]\n", __progname, (int)strlen(__progname), "",
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__progname, __progname, __progname);
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exit(1);
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}
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}
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for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++)
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to = cat(to, nalloc(argv[i], GTO));
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for (; argv[i] != NULL; i++)
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smopts = cat(smopts, nalloc(argv[i], 0));
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/*
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* Check for inconsistent arguments.
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*/
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if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL))
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errx(1, "You must specify direct recipients with -s, -c, or -b.");
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if (ef != NULL && to != NULL)
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errx(1, "Cannot give -f and people to send to.");
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tinit();
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setscreensize();
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input = stdin;
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rcvmode = !to;
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spreserve();
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if (!nosrc) {
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char *s, *path_rc;
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if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL)
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err(1, "malloc(path_rc) failed");
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strcpy(path_rc, _PATH_MASTER_RC);
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while ((s = strsep(&path_rc, ":")) != NULL)
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if (*s != '\0')
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load(s);
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}
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/*
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* Expand returns a savestr, but load only uses the file name
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* for fopen, so it's safe to do this.
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*/
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if ((rc = getenv("MAILRC")) == NULL)
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rc = "~/.mailrc";
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load(expand(rc));
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replyto = value("REPLYTO");
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if (!rcvmode) {
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mail(to, cc, bcc, smopts, subject, replyto);
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/*
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* why wait?
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*/
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exit(senderr);
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}
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if(value("checkmode") != NULL) {
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if (ef == NULL)
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ef = "%";
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if (setfile(ef) <= 0)
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/* Either an error has occurred, or no mail */
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exit(1);
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else
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exit(0);
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/* NOTREACHED */
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}
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/*
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* Ok, we are reading mail.
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* Decide whether we are editing a mailbox or reading
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* the system mailbox, and open up the right stuff.
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*/
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if (ef == NULL)
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ef = "%";
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if (setfile(ef) < 0)
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exit(1); /* error already reported */
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if (setjmp(hdrjmp) == 0) {
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if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN)
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(void)signal(SIGINT, hdrstop);
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if (value("quiet") == NULL)
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printf("Mail version %s. Type ? for help.\n",
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version);
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announce();
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(void)fflush(stdout);
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(void)signal(SIGINT, prevint);
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}
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/* If we were in header summary mode, it's time to exit. */
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if (value("headersummary") != NULL)
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exit(0);
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commands();
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(void)signal(SIGHUP, SIG_IGN);
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(void)signal(SIGINT, SIG_IGN);
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(void)signal(SIGQUIT, SIG_IGN);
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quit();
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exit(0);
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}
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/*
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* Interrupt printing of the headers.
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*/
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/*ARGSUSED*/
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void
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hdrstop(int signo __unused)
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{
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(void)fflush(stdout);
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fprintf(stderr, "\nInterrupt\n");
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longjmp(hdrjmp, 1);
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}
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/*
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* Compute what the screen size for printing headers should be.
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* We use the following algorithm for the height:
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* If baud rate < 1200, use 9
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* If baud rate = 1200, use 14
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* If baud rate > 1200, use 24 or ws_row
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* Width is either 80 or ws_col;
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*/
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void
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setscreensize(void)
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{
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struct termios tbuf;
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struct winsize ws;
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speed_t speed;
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if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0)
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ws.ws_col = ws.ws_row = 0;
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if (tcgetattr(1, &tbuf) < 0)
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speed = B9600;
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else
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speed = cfgetospeed(&tbuf);
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if (speed < B1200)
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screenheight = 9;
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else if (speed == B1200)
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screenheight = 14;
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else if (ws.ws_row != 0)
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screenheight = ws.ws_row;
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else
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screenheight = 24;
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if ((realscreenheight = ws.ws_row) == 0)
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realscreenheight = 24;
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if ((screenwidth = ws.ws_col) == 0)
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screenwidth = 80;
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}
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