/* * 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. 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. * * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. * @(#)main.c 8.2 (Berkeley) 4/20/95 * $FreeBSD: src/usr.bin/mail/main.c,v 1.6.2.5 2003/01/06 05:46:03 mikeh Exp $ * $DragonFly: src/usr.bin/mail/main.c,v 1.6 2004/09/08 03:01:11 joerg Exp $ */ #include "rcv.h" #include #include "extern.h" /* * Mail -- a mail program * * Startup -- interface with user. */ jmp_buf hdrjmp; extern const char *version; int main(int argc, char **argv) { int i; struct name *to, *cc, *bcc, *smopts; char *subject, *replyto; char *ef, *rc; char nosrc = 0; const char *progname; sig_t prevint; /* * Set up a reasonable environment. * Figure out whether we are being run interactively, * start the SIGCHLD catcher, and so forth. */ 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 = NULL; cc = NULL; bcc = NULL; smopts = NULL; subject = NULL; while ((i = getopt(argc, argv, "FEHINT:b:c:edfins: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 = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 0600)) < 0) err(1, "%s", Tflag); close(i); break; case 'u': /* * Next argument is person to pretend to be. */ myname = optarg; unsetenv("MAIL"); break; case 'i': /* * User wants to ignore interrupts. * Set the variable "ignore" */ assign("ignore", ""); break; case 'd': debug++; break; case 'e': /* * User wants to check mail and exit. */ assign("checkmode", ""); break; case 'H': /* * User wants a header summary only. */ assign("headersummary", ""); break; case 'F': /* * User wants to record messages to files * named after first recipient username. */ assign("recordrecip", ""); 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] != NULL) && (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 'E': /* * Don't send empty files. */ assign("dontsendempty", ""); break; case '?': progname = getprogname(); fprintf(stderr, "Usage: %s [-EiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ...\n" " %*s [- sendmail-options ...]\n" " %s [-EHiInNv] [-F] -f [name]\n" " %s [-EHiInNv] [-F] [-u user]\n" " %s -e [-f name]\n" " %s -H\n", progname, strlen(progname), "", progname, progname, progname, progname); exit(1); } } for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) to = cat(to, nalloc(argv[i], GTO)); for (; argv[i] != NULL; i++) smopts = cat(smopts, nalloc(argv[i], 0)); /* * Check for inconsistent arguments. */ if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) errx(1, "You must specify direct recipients with -s, -c, or -b."); if (ef != NULL && to != NULL) errx(1, "Cannot give -f and people to send to."); tinit(); setscreensize(); input = stdin; rcvmode = !to; spreserve(); if (!nosrc) { char *s, *path_rc; if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) err(1, "malloc(path_rc) failed"); strcpy(path_rc, _PATH_MASTER_RC); while ((s = strsep(&path_rc, ":")) != NULL) if (*s != '\0') load(s); } /* * Expand returns a savestr, but load only uses the file name * for fopen, so it's safe to do this. */ if ((rc = getenv("MAILRC")) == NULL) rc = "~/.mailrc"; load(expand(rc)); replyto = value("REPLYTO"); if (!rcvmode) { mail(to, cc, bcc, smopts, subject, replyto); /* * why wait? */ exit(senderr); } if (value("checkmode") != NULL) { if (ef == NULL) ef = "%s"; if (setfile(ef) <= 0) { /* Either an error has occured, or no mail. */ exit(1); } else { exit(0); } /* NOTREACHED */ } /* * 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 (setjmp(hdrjmp) == 0) { if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) signal(SIGINT, hdrstop); if (value("quiet") == NULL) printf("Mail version %s. Type ? for help.\n", version); announce(); fflush(stdout); signal(SIGINT, prevint); } /* If we were in header summary mode, it's time to exit. */ if (value("headersummary") != NULL) exit(0); commands(); signal(SIGHUP, SIG_IGN); signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); quit(); exit(0); } /* * Interrupt printing of the headers. */ /*ARGSUSED*/ void hdrstop(int signo) { fflush(stdout); fprintf(stderr, "\nInterrupt\n"); longjmp(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(void) { struct termios tbuf; struct winsize ws; speed_t speed; if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) ws.ws_col = ws.ws_row = 0; if (tcgetattr(1, &tbuf) < 0) speed = B9600; else speed = cfgetospeed(&tbuf); if (speed < B1200) screenheight = 9; else if (speed == 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; }