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 1.2 2003/06/17 04:29:28 dillon 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(argc, argv) 55 int argc; 56 char *argv[]; 57 { 58 int i; 59 struct name *to, *cc, *bcc, *smopts; 60 char *subject, *replyto; 61 char *ef, *rc; 62 char nosrc = 0; 63 sig_t prevint; 64 65 /* 66 * Set up a reasonable environment. 67 * Figure out whether we are being run interactively, 68 * start the SIGCHLD catcher, and so forth. 69 */ 70 (void)signal(SIGCHLD, sigchild); 71 if (isatty(0)) 72 assign("interactive", ""); 73 image = -1; 74 /* 75 * Now, determine how we are being used. 76 * We successively pick off - flags. 77 * If there is anything left, it is the base of the list 78 * of users to mail to. Argp will be set to point to the 79 * first of these users. 80 */ 81 ef = NULL; 82 to = NULL; 83 cc = NULL; 84 bcc = NULL; 85 smopts = NULL; 86 subject = NULL; 87 while ((i = getopt(argc, argv, "EINT:b:c:dfins:u:v")) != -1) { 88 switch (i) { 89 case 'T': 90 /* 91 * Next argument is temp file to write which 92 * articles have been read/deleted for netnews. 93 */ 94 Tflag = optarg; 95 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 96 0600)) < 0) 97 err(1, "%s", Tflag); 98 (void)close(i); 99 break; 100 case 'u': 101 /* 102 * Next argument is person to pretend to be. 103 */ 104 myname = optarg; 105 unsetenv("MAIL"); 106 break; 107 case 'i': 108 /* 109 * User wants to ignore interrupts. 110 * Set the variable "ignore" 111 */ 112 assign("ignore", ""); 113 break; 114 case 'd': 115 debug++; 116 break; 117 case 's': 118 /* 119 * Give a subject field for sending from 120 * non terminal 121 */ 122 subject = optarg; 123 break; 124 case 'f': 125 /* 126 * User is specifying file to "edit" with Mail, 127 * as opposed to reading system mailbox. 128 * If no argument is given after -f, we read his 129 * mbox file. 130 * 131 * getopt() can't handle optional arguments, so here 132 * is an ugly hack to get around it. 133 */ 134 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 135 ef = argv[optind++]; 136 else 137 ef = "&"; 138 break; 139 case 'n': 140 /* 141 * User doesn't want to source /usr/lib/Mail.rc 142 */ 143 nosrc++; 144 break; 145 case 'N': 146 /* 147 * Avoid initial header printing. 148 */ 149 assign("noheader", ""); 150 break; 151 case 'v': 152 /* 153 * Send mailer verbose flag 154 */ 155 assign("verbose", ""); 156 break; 157 case 'I': 158 /* 159 * We're interactive 160 */ 161 assign("interactive", ""); 162 break; 163 case 'c': 164 /* 165 * Get Carbon Copy Recipient list 166 */ 167 cc = cat(cc, nalloc(optarg, GCC)); 168 break; 169 case 'b': 170 /* 171 * Get Blind Carbon Copy Recipient list 172 */ 173 bcc = cat(bcc, nalloc(optarg, GBCC)); 174 break; 175 case 'E': 176 /* 177 * Don't send empty files. 178 */ 179 assign("dontsendempty", ""); 180 break; 181 case '?': 182 fprintf(stderr, "\ 183 Usage: %s [-EiInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 184 %*s [- sendmail-options ...]\n\ 185 %s [-EiInNv] -f [name]\n\ 186 %s [-EiInNv] [-u user]\n",__progname, strlen(__progname), "", 187 __progname, __progname); 188 exit(1); 189 } 190 } 191 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 192 to = cat(to, nalloc(argv[i], GTO)); 193 for (; argv[i] != NULL; i++) 194 smopts = cat(smopts, nalloc(argv[i], 0)); 195 /* 196 * Check for inconsistent arguments. 197 */ 198 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 199 errx(1, "You must specify direct recipients with -s, -c, or -b."); 200 if (ef != NULL && to != NULL) 201 errx(1, "Cannot give -f and people to send to."); 202 tinit(); 203 setscreensize(); 204 input = stdin; 205 rcvmode = !to; 206 spreserve(); 207 if (!nosrc) { 208 char *s, *path_rc; 209 210 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 211 err(1, "malloc(path_rc) failed"); 212 213 strcpy(path_rc, _PATH_MASTER_RC); 214 while ((s = strsep(&path_rc, ":")) != NULL) 215 if (*s != '\0') 216 load(s); 217 } 218 /* 219 * Expand returns a savestr, but load only uses the file name 220 * for fopen, so it's safe to do this. 221 */ 222 if ((rc = getenv("MAILRC")) == NULL) 223 rc = "~/.mailrc"; 224 load(expand(rc)); 225 226 replyto = value("REPLYTO"); 227 if (!rcvmode) { 228 mail(to, cc, bcc, smopts, subject, replyto); 229 /* 230 * why wait? 231 */ 232 exit(senderr); 233 } 234 /* 235 * Ok, we are reading mail. 236 * Decide whether we are editing a mailbox or reading 237 * the system mailbox, and open up the right stuff. 238 */ 239 if (ef == NULL) 240 ef = "%"; 241 if (setfile(ef) < 0) 242 exit(1); /* error already reported */ 243 if (setjmp(hdrjmp) == 0) { 244 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 245 (void)signal(SIGINT, hdrstop); 246 if (value("quiet") == NULL) 247 printf("Mail version %s. Type ? for help.\n", 248 version); 249 announce(); 250 (void)fflush(stdout); 251 (void)signal(SIGINT, prevint); 252 } 253 commands(); 254 (void)signal(SIGHUP, SIG_IGN); 255 (void)signal(SIGINT, SIG_IGN); 256 (void)signal(SIGQUIT, SIG_IGN); 257 quit(); 258 exit(0); 259 } 260 261 /* 262 * Interrupt printing of the headers. 263 */ 264 /*ARGSUSED*/ 265 void 266 hdrstop(signo) 267 int signo; 268 { 269 270 (void)fflush(stdout); 271 fprintf(stderr, "\nInterrupt\n"); 272 longjmp(hdrjmp, 1); 273 } 274 275 /* 276 * Compute what the screen size for printing headers should be. 277 * We use the following algorithm for the height: 278 * If baud rate < 1200, use 9 279 * If baud rate = 1200, use 14 280 * If baud rate > 1200, use 24 or ws_row 281 * Width is either 80 or ws_col; 282 */ 283 void 284 setscreensize() 285 { 286 struct termios tbuf; 287 struct winsize ws; 288 speed_t speed; 289 290 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 291 ws.ws_col = ws.ws_row = 0; 292 if (tcgetattr(1, &tbuf) < 0) 293 speed = B9600; 294 else 295 speed = cfgetospeed(&tbuf); 296 if (speed < B1200) 297 screenheight = 9; 298 else if (speed == B1200) 299 screenheight = 14; 300 else if (ws.ws_row != 0) 301 screenheight = ws.ws_row; 302 else 303 screenheight = 24; 304 if ((realscreenheight = ws.ws_row) == 0) 305 realscreenheight = 24; 306 if ((screenwidth = ws.ws_col) == 0) 307 screenwidth = 80; 308 } 309