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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef lint 31 static char copyright[] = 32 "@(#) Copyright (c) 1980, 1993\n\ 33 The Regents of the University of California. All rights reserved.\n"; 34 #endif /* not lint */ 35 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; 39 #endif 40 #endif /* not lint */ 41 #include <sys/cdefs.h> 42 __FBSDID("$FreeBSD$"); 43 44 #include "rcv.h" 45 #include <fcntl.h> 46 #include "extern.h" 47 48 /* 49 * Mail -- a mail program 50 * 51 * Startup -- interface with user. 52 */ 53 54 static jmp_buf hdrjmp; 55 56 extern const char *version; 57 58 int 59 main(argc, argv) 60 int argc; 61 char *argv[]; 62 { 63 int i; 64 struct name *to, *cc, *bcc, *smopts; 65 char *subject, *replyto; 66 char *ef, *rc; 67 char nosrc = 0; 68 sig_t prevint; 69 70 /* 71 * Set up a reasonable environment. 72 * Figure out whether we are being run interactively, 73 * start the SIGCHLD catcher, and so forth. 74 */ 75 (void)signal(SIGCHLD, sigchild); 76 if (isatty(0)) 77 assign("interactive", ""); 78 image = -1; 79 /* 80 * Now, determine how we are being used. 81 * We successively pick off - flags. 82 * If there is anything left, it is the base of the list 83 * of users to mail to. Argp will be set to point to the 84 * first of these users. 85 */ 86 ef = NULL; 87 to = NULL; 88 cc = NULL; 89 bcc = NULL; 90 smopts = NULL; 91 subject = NULL; 92 while ((i = getopt(argc, argv, "FEHINT:b:c:edfins:u:v")) != -1) { 93 switch (i) { 94 case 'T': 95 /* 96 * Next argument is temp file to write which 97 * articles have been read/deleted for netnews. 98 */ 99 Tflag = optarg; 100 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 101 0600)) < 0) 102 err(1, "%s", Tflag); 103 (void)close(i); 104 break; 105 case 'u': 106 /* 107 * Next argument is person to pretend to be. 108 */ 109 myname = optarg; 110 unsetenv("MAIL"); 111 break; 112 case 'i': 113 /* 114 * User wants to ignore interrupts. 115 * Set the variable "ignore" 116 */ 117 assign("ignore", ""); 118 break; 119 case 'd': 120 debug++; 121 break; 122 case 'e': 123 /* 124 * User wants to check mail and exit. 125 */ 126 assign("checkmode", ""); 127 break; 128 case 'H': 129 /* 130 * User wants a header summary only. 131 */ 132 assign("headersummary", ""); 133 break; 134 case 'F': 135 /* 136 * User wants to record messages to files 137 * named after first recipient username. 138 */ 139 assign("recordrecip", ""); 140 break; 141 case 's': 142 /* 143 * Give a subject field for sending from 144 * non terminal 145 */ 146 subject = optarg; 147 break; 148 case 'f': 149 /* 150 * User is specifying file to "edit" with Mail, 151 * as opposed to reading system mailbox. 152 * If no argument is given after -f, we read his 153 * mbox file. 154 * 155 * getopt() can't handle optional arguments, so here 156 * is an ugly hack to get around it. 157 */ 158 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 159 ef = argv[optind++]; 160 else 161 ef = "&"; 162 break; 163 case 'n': 164 /* 165 * User doesn't want to source /usr/lib/Mail.rc 166 */ 167 nosrc++; 168 break; 169 case 'N': 170 /* 171 * Avoid initial header printing. 172 */ 173 assign("noheader", ""); 174 break; 175 case 'v': 176 /* 177 * Send mailer verbose flag 178 */ 179 assign("verbose", ""); 180 break; 181 case 'I': 182 /* 183 * We're interactive 184 */ 185 assign("interactive", ""); 186 break; 187 case 'c': 188 /* 189 * Get Carbon Copy Recipient list 190 */ 191 cc = cat(cc, nalloc(optarg, GCC)); 192 break; 193 case 'b': 194 /* 195 * Get Blind Carbon Copy Recipient list 196 */ 197 bcc = cat(bcc, nalloc(optarg, GBCC)); 198 break; 199 case 'E': 200 /* 201 * Don't send empty files. 202 */ 203 assign("dontsendempty", ""); 204 break; 205 case '?': 206 fprintf(stderr, "\ 207 Usage: %s [-dEiInv] [-s subject] [-c cc-addr] [-b bcc-addr] [-F] to-addr ...\n\ 208 %*s [-sendmail-option ...]\n\ 209 %s [-dEHiInNv] [-F] -f [name]\n\ 210 %s [-dEHiInNv] [-F] [-u user]\n\ 211 %s [-d] -e [-f name]\n", __progname, strlen(__progname), "", 212 __progname, __progname, __progname); 213 exit(1); 214 } 215 } 216 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 217 to = cat(to, nalloc(argv[i], GTO)); 218 for (; argv[i] != NULL; i++) 219 smopts = cat(smopts, nalloc(argv[i], 0)); 220 /* 221 * Check for inconsistent arguments. 222 */ 223 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 224 errx(1, "You must specify direct recipients with -s, -c, or -b."); 225 if (ef != NULL && to != NULL) 226 errx(1, "Cannot give -f and people to send to."); 227 tinit(); 228 setscreensize(); 229 input = stdin; 230 rcvmode = !to; 231 spreserve(); 232 if (!nosrc) { 233 char *s, *path_rc; 234 235 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 236 err(1, "malloc(path_rc) failed"); 237 238 strcpy(path_rc, _PATH_MASTER_RC); 239 while ((s = strsep(&path_rc, ":")) != NULL) 240 if (*s != '\0') 241 load(s); 242 } 243 /* 244 * Expand returns a savestr, but load only uses the file name 245 * for fopen, so it's safe to do this. 246 */ 247 if ((rc = getenv("MAILRC")) == NULL) 248 rc = "~/.mailrc"; 249 load(expand(rc)); 250 251 replyto = value("REPLYTO"); 252 if (!rcvmode) { 253 mail(to, cc, bcc, smopts, subject, replyto); 254 /* 255 * why wait? 256 */ 257 exit(senderr); 258 } 259 260 if(value("checkmode") != NULL) { 261 if (ef == NULL) 262 ef = "%"; 263 if (setfile(ef) <= 0) 264 /* Either an error has occured, or no mail */ 265 exit(1); 266 else 267 exit(0); 268 /* NOTREACHED */ 269 } 270 271 /* 272 * Ok, we are reading mail. 273 * Decide whether we are editing a mailbox or reading 274 * the system mailbox, and open up the right stuff. 275 */ 276 if (ef == NULL) 277 ef = "%"; 278 if (setfile(ef) < 0) 279 exit(1); /* error already reported */ 280 if (setjmp(hdrjmp) == 0) { 281 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 282 (void)signal(SIGINT, hdrstop); 283 if (value("quiet") == NULL) 284 printf("Mail version %s. Type ? for help.\n", 285 version); 286 announce(); 287 (void)fflush(stdout); 288 (void)signal(SIGINT, prevint); 289 } 290 291 /* If we were in header summary mode, it's time to exit. */ 292 if (value("headersummary") != NULL) 293 exit(0); 294 295 commands(); 296 (void)signal(SIGHUP, SIG_IGN); 297 (void)signal(SIGINT, SIG_IGN); 298 (void)signal(SIGQUIT, SIG_IGN); 299 quit(); 300 exit(0); 301 } 302 303 /* 304 * Interrupt printing of the headers. 305 */ 306 /*ARGSUSED*/ 307 void 308 hdrstop(signo) 309 int signo; 310 { 311 312 (void)fflush(stdout); 313 fprintf(stderr, "\nInterrupt\n"); 314 longjmp(hdrjmp, 1); 315 } 316 317 /* 318 * Compute what the screen size for printing headers should be. 319 * We use the following algorithm for the height: 320 * If baud rate < 1200, use 9 321 * If baud rate = 1200, use 14 322 * If baud rate > 1200, use 24 or ws_row 323 * Width is either 80 or ws_col; 324 */ 325 void 326 setscreensize() 327 { 328 struct termios tbuf; 329 struct winsize ws; 330 speed_t speed; 331 332 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 333 ws.ws_col = ws.ws_row = 0; 334 if (tcgetattr(1, &tbuf) < 0) 335 speed = B9600; 336 else 337 speed = cfgetospeed(&tbuf); 338 if (speed < B1200) 339 screenheight = 9; 340 else if (speed == B1200) 341 screenheight = 14; 342 else if (ws.ws_row != 0) 343 screenheight = ws.ws_row; 344 else 345 screenheight = 24; 346 if ((realscreenheight = ws.ws_row) == 0) 347 realscreenheight = 24; 348 if ((screenwidth = ws.ws_col) == 0) 349 screenwidth = 80; 350 } 351