/* $OpenBSD: main.c,v 1.11 1998/09/27 21:16:42 millert Exp $ */ /* $NetBSD: main.c,v 1.7 1997/05/13 06:15:57 mikel Exp $ */ /* * 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 static char copyright[] = "@(#) Copyright (c) 1980, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; #else static char rcsid[] = "$OpenBSD: main.c,v 1.11 1998/09/27 21:16:42 millert Exp $"; #endif #endif /* not lint */ #include "rcv.h" #include <fcntl.h> #include <sys/ioctl.h> #include "extern.h" int main __P((int, char **)); /* * Mail -- a mail program * * Startup -- interface with user. */ sigjmp_buf hdrjmp; int main(argc, argv) int argc; char *argv[]; { int i; struct name *to, *cc, *bcc, *smopts; char *subject; char *ef; char nosrc = 0; sig_t prevint; char *rc; /* * Set up a reasonable environment. * Figure out whether we are being run interactively, * start the SIGCHLD catcher, and so forth. */ (void)signal(SIGCHLD, sigchild); if (isatty(0)) assign("interactive", ""); image = -1; /* * Now, determine how we are being used. * We successively pick off - flags. * 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 = NULL; to = NIL; cc = NIL; bcc = NIL; smopts = NIL; subject = NULL; while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != -1) { switch (i) { case 'T': /* * Next argument is temp file to write which * articles have been read/deleted for netnews. */ Tflag = optarg; if ((i = creat(Tflag, 0600)) < 0) err(1, Tflag); (void)close(i); break; case 'u': /* * Next argument is person to pretend to be. */ unsetenv("MAIL"); myname = optarg; uflag = 1; break; case 'i': /* * User wants to ignore interrupts. * Set the variable "ignore" */ assign("ignore", ""); break; case 'd': debug++; break; case 's': /* * Give a subject field for sending from * non terminal */ subject = optarg; break; case 'f': /* * User is specifying file to "edit" with Mail, * as opposed to reading system mailbox. * If no argument is given after -f, we read his * mbox file. * * getopt() can't handle optional arguments, so here * is an ugly hack to get around it. */ if ((argv[optind]) && (argv[optind][0] != '-')) ef = argv[optind++]; else ef = "&"; break; case 'n': /* * User doesn't want to source /usr/lib/Mail.rc */ nosrc++; break; case 'N': /* * Avoid initial header printing. */ assign("noheader", ""); break; case 'v': /* * Send mailer verbose flag */ assign("verbose", ""); break; case 'I': /* * We're interactive */ assign("interactive", ""); break; case 'c': /* * Get Carbon Copy Recipient list */ cc = cat(cc, nalloc(optarg, GCC)); break; case 'b': /* * Get Blind Carbon Copy Recipient list */ bcc = cat(bcc, nalloc(optarg, GBCC)); break; case '?': fprintf(stderr, "\ Usage: %s [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ [- sendmail-options ...]\n\ %s [-iInNv] -f [name]\n\ %s [-iInNv] [-u user]\n", __progname, __progname, __progname); exit(1); } } for (i = optind; (argv[i]) && (*argv[i] != '-'); i++) to = cat(to, nalloc(argv[i], GTO)); for (; argv[i]; i++) smopts = cat(smopts, nalloc(argv[i], 0)); /* * Check for inconsistent arguments. */ if (to == NIL && (subject != NULL || cc != NIL || bcc != NIL)) errx(1, "You must specify direct recipients with -s, -c, or -b"); if (ef != NULL && to != NIL) errx(1, "Cannot give -f and people to send to"); tinit(); setscreensize(); input = stdin; rcvmode = !to; spreserve(); if (!nosrc) load(_PATH_MASTER_RC); /* * Expand returns a savestr, but load only uses the file name * for fopen, so it's safe to do this. */ if ((rc = getenv("MAILRC")) == 0) rc = "~/.mailrc"; load(expand(rc)); if (!rcvmode) { mail(to, cc, bcc, smopts, subject); /* * why wait? */ exit(senderr); } /* * Ok, we are reading mail. * Decide whether we are editing a mailbox or reading * the system mailbox, and open up the right stuff. */ if (ef == NULL) ef = "%"; if (setfile(ef) < 0) exit(1); /* error already reported */ if (sigsetjmp(hdrjmp, 1) == 0) { extern char *version; if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) (void)signal(SIGINT, hdrstop); if (value("quiet") == NULL) (void)printf("Mail version %s. Type ? for help.\n", version); announce(); (void)fflush(stdout); (void)signal(SIGINT, prevint); } commands(); (void)signal(SIGHUP, SIG_IGN); (void)signal(SIGINT, SIG_IGN); (void)signal(SIGQUIT, SIG_IGN); quit(); exit(0); } /* * Interrupt printing of the headers. */ void hdrstop(signo) int signo; { fflush(stdout); fputs("\nInterrupt\n", stderr); siglongjmp(hdrjmp, 1); } /* * Compute what the screen size for printing headers should be. * We use the following algorithm for the height: * If baud rate < 1200, use 9 * If baud rate = 1200, use 14 * If baud rate > 1200, use 24 or ws_row * Width is either 80 or ws_col; */ void setscreensize() { struct termios tbuf; struct winsize ws; speed_t ospeed; if (ioctl(1, TIOCGWINSZ, (char *) &ws) < 0) ws.ws_col = ws.ws_row = 0; if (tcgetattr(1, &tbuf) < 0) ospeed = 9600; else ospeed = cfgetospeed(&tbuf); if (ospeed < B1200) screenheight = 9; else if (ospeed == B1200) screenheight = 14; else if (ws.ws_row != 0) screenheight = ws.ws_row; else screenheight = 24; if ((realscreenheight = ws.ws_row) == 0) realscreenheight = 24; if ((screenwidth = ws.ws_col) == 0) screenwidth = 80; }