1 /* 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved. 34 * @(#)main.c 8.2 (Berkeley) 4/20/95 35 * $FreeBSD: src/usr.bin/mail/main.c,v 1.6.2.5 2003/01/06 05:46:03 mikeh Exp $ 36 * $DragonFly: src/usr.bin/mail/main.c,v 1.3 2003/10/04 20:36:48 hmp Exp $ 37 */ 38 39 #include "rcv.h" 40 #include <fcntl.h> 41 #include "extern.h" 42 43 /* 44 * Mail -- a mail program 45 * 46 * Startup -- interface with user. 47 */ 48 49 jmp_buf hdrjmp; 50 51 extern const char *version; 52 53 int 54 main(int argc, char **argv) 55 { 56 int i; 57 struct name *to, *cc, *bcc, *smopts; 58 char *subject, *replyto; 59 char *ef, *rc; 60 char nosrc = 0; 61 sig_t prevint; 62 63 /* 64 * Set up a reasonable environment. 65 * Figure out whether we are being run interactively, 66 * start the SIGCHLD catcher, and so forth. 67 */ 68 (void)signal(SIGCHLD, sigchild); 69 if (isatty(0)) 70 assign("interactive", ""); 71 image = -1; 72 /* 73 * Now, determine how we are being used. 74 * We successively pick off - flags. 75 * If there is anything left, it is the base of the list 76 * of users to mail to. Argp will be set to point to the 77 * first of these users. 78 */ 79 ef = NULL; 80 to = NULL; 81 cc = NULL; 82 bcc = NULL; 83 smopts = NULL; 84 subject = NULL; 85 while ((i = getopt(argc, argv, "EINT:b:c:dfins:u:v")) != -1) { 86 switch (i) { 87 case 'T': 88 /* 89 * Next argument is temp file to write which 90 * articles have been read/deleted for netnews. 91 */ 92 Tflag = optarg; 93 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 94 0600)) < 0) 95 err(1, "%s", Tflag); 96 (void)close(i); 97 break; 98 case 'u': 99 /* 100 * Next argument is person to pretend to be. 101 */ 102 myname = optarg; 103 unsetenv("MAIL"); 104 break; 105 case 'i': 106 /* 107 * User wants to ignore interrupts. 108 * Set the variable "ignore" 109 */ 110 assign("ignore", ""); 111 break; 112 case 'd': 113 debug++; 114 break; 115 case 's': 116 /* 117 * Give a subject field for sending from 118 * non terminal 119 */ 120 subject = optarg; 121 break; 122 case 'f': 123 /* 124 * User is specifying file to "edit" with Mail, 125 * as opposed to reading system mailbox. 126 * If no argument is given after -f, we read his 127 * mbox file. 128 * 129 * getopt() can't handle optional arguments, so here 130 * is an ugly hack to get around it. 131 */ 132 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 133 ef = argv[optind++]; 134 else 135 ef = "&"; 136 break; 137 case 'n': 138 /* 139 * User doesn't want to source /usr/lib/Mail.rc 140 */ 141 nosrc++; 142 break; 143 case 'N': 144 /* 145 * Avoid initial header printing. 146 */ 147 assign("noheader", ""); 148 break; 149 case 'v': 150 /* 151 * Send mailer verbose flag 152 */ 153 assign("verbose", ""); 154 break; 155 case 'I': 156 /* 157 * We're interactive 158 */ 159 assign("interactive", ""); 160 break; 161 case 'c': 162 /* 163 * Get Carbon Copy Recipient list 164 */ 165 cc = cat(cc, nalloc(optarg, GCC)); 166 break; 167 case 'b': 168 /* 169 * Get Blind Carbon Copy Recipient list 170 */ 171 bcc = cat(bcc, nalloc(optarg, GBCC)); 172 break; 173 case 'E': 174 /* 175 * Don't send empty files. 176 */ 177 assign("dontsendempty", ""); 178 break; 179 case '?': 180 fprintf(stderr, "\ 181 Usage: %s [-EiInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 182 %*s [- sendmail-options ...]\n\ 183 %s [-EiInNv] -f [name]\n\ 184 %s [-EiInNv] [-u user]\n",__progname, strlen(__progname), "", 185 __progname, __progname); 186 exit(1); 187 } 188 } 189 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 190 to = cat(to, nalloc(argv[i], GTO)); 191 for (; argv[i] != NULL; i++) 192 smopts = cat(smopts, nalloc(argv[i], 0)); 193 /* 194 * Check for inconsistent arguments. 195 */ 196 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 197 errx(1, "You must specify direct recipients with -s, -c, or -b."); 198 if (ef != NULL && to != NULL) 199 errx(1, "Cannot give -f and people to send to."); 200 tinit(); 201 setscreensize(); 202 input = stdin; 203 rcvmode = !to; 204 spreserve(); 205 if (!nosrc) { 206 char *s, *path_rc; 207 208 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 209 err(1, "malloc(path_rc) failed"); 210 211 strcpy(path_rc, _PATH_MASTER_RC); 212 while ((s = strsep(&path_rc, ":")) != NULL) 213 if (*s != '\0') 214 load(s); 215 } 216 /* 217 * Expand returns a savestr, but load only uses the file name 218 * for fopen, so it's safe to do this. 219 */ 220 if ((rc = getenv("MAILRC")) == NULL) 221 rc = "~/.mailrc"; 222 load(expand(rc)); 223 224 replyto = value("REPLYTO"); 225 if (!rcvmode) { 226 mail(to, cc, bcc, smopts, subject, replyto); 227 /* 228 * why wait? 229 */ 230 exit(senderr); 231 } 232 /* 233 * Ok, we are reading mail. 234 * Decide whether we are editing a mailbox or reading 235 * the system mailbox, and open up the right stuff. 236 */ 237 if (ef == NULL) 238 ef = "%"; 239 if (setfile(ef) < 0) 240 exit(1); /* error already reported */ 241 if (setjmp(hdrjmp) == 0) { 242 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 243 (void)signal(SIGINT, hdrstop); 244 if (value("quiet") == NULL) 245 printf("Mail version %s. Type ? for help.\n", 246 version); 247 announce(); 248 (void)fflush(stdout); 249 (void)signal(SIGINT, prevint); 250 } 251 commands(); 252 (void)signal(SIGHUP, SIG_IGN); 253 (void)signal(SIGINT, SIG_IGN); 254 (void)signal(SIGQUIT, SIG_IGN); 255 quit(); 256 exit(0); 257 } 258 259 /* 260 * Interrupt printing of the headers. 261 */ 262 /*ARGSUSED*/ 263 void 264 hdrstop(int signo) 265 { 266 267 (void)fflush(stdout); 268 fprintf(stderr, "\nInterrupt\n"); 269 longjmp(hdrjmp, 1); 270 } 271 272 /* 273 * Compute what the screen size for printing headers should be. 274 * We use the following algorithm for the height: 275 * If baud rate < 1200, use 9 276 * If baud rate = 1200, use 14 277 * If baud rate > 1200, use 24 or ws_row 278 * Width is either 80 or ws_col; 279 */ 280 void 281 setscreensize(void) 282 { 283 struct termios tbuf; 284 struct winsize ws; 285 speed_t speed; 286 287 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 288 ws.ws_col = ws.ws_row = 0; 289 if (tcgetattr(1, &tbuf) < 0) 290 speed = B9600; 291 else 292 speed = cfgetospeed(&tbuf); 293 if (speed < B1200) 294 screenheight = 9; 295 else if (speed == B1200) 296 screenheight = 14; 297 else if (ws.ws_row != 0) 298 screenheight = ws.ws_row; 299 else 300 screenheight = 24; 301 if ((realscreenheight = ws.ws_row) == 0) 302 realscreenheight = 24; 303 if ((screenwidth = ws.ws_col) == 0) 304 screenwidth = 80; 305 } 306