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 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1980, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 4/20/95"; 43 #endif 44 #endif /* not lint */ 45 #include <sys/cdefs.h> 46 __FBSDID("$FreeBSD: src/usr.bin/mail/main.c,v 1.6.2.5 2003/01/06 05:46:03 mikeh Exp $"); 47 48 #include "rcv.h" 49 #include <fcntl.h> 50 #include "extern.h" 51 52 /* 53 * Mail -- a mail program 54 * 55 * Startup -- interface with user. 56 */ 57 58 jmp_buf hdrjmp; 59 60 extern const char *version; 61 62 int 63 main(argc, argv) 64 int argc; 65 char *argv[]; 66 { 67 int i; 68 struct name *to, *cc, *bcc, *smopts; 69 char *subject, *replyto; 70 char *ef, *rc; 71 char nosrc = 0; 72 sig_t prevint; 73 74 /* 75 * Set up a reasonable environment. 76 * Figure out whether we are being run interactively, 77 * start the SIGCHLD catcher, and so forth. 78 */ 79 (void)signal(SIGCHLD, sigchild); 80 if (isatty(0)) 81 assign("interactive", ""); 82 image = -1; 83 /* 84 * Now, determine how we are being used. 85 * We successively pick off - flags. 86 * If there is anything left, it is the base of the list 87 * of users to mail to. Argp will be set to point to the 88 * first of these users. 89 */ 90 ef = NULL; 91 to = NULL; 92 cc = NULL; 93 bcc = NULL; 94 smopts = NULL; 95 subject = NULL; 96 while ((i = getopt(argc, argv, "EINT:b:c:dfins:u:v")) != -1) { 97 switch (i) { 98 case 'T': 99 /* 100 * Next argument is temp file to write which 101 * articles have been read/deleted for netnews. 102 */ 103 Tflag = optarg; 104 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 105 0600)) < 0) 106 err(1, "%s", Tflag); 107 (void)close(i); 108 break; 109 case 'u': 110 /* 111 * Next argument is person to pretend to be. 112 */ 113 myname = optarg; 114 unsetenv("MAIL"); 115 break; 116 case 'i': 117 /* 118 * User wants to ignore interrupts. 119 * Set the variable "ignore" 120 */ 121 assign("ignore", ""); 122 break; 123 case 'd': 124 debug++; 125 break; 126 case 's': 127 /* 128 * Give a subject field for sending from 129 * non terminal 130 */ 131 subject = optarg; 132 break; 133 case 'f': 134 /* 135 * User is specifying file to "edit" with Mail, 136 * as opposed to reading system mailbox. 137 * If no argument is given after -f, we read his 138 * mbox file. 139 * 140 * getopt() can't handle optional arguments, so here 141 * is an ugly hack to get around it. 142 */ 143 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 144 ef = argv[optind++]; 145 else 146 ef = "&"; 147 break; 148 case 'n': 149 /* 150 * User doesn't want to source /usr/lib/Mail.rc 151 */ 152 nosrc++; 153 break; 154 case 'N': 155 /* 156 * Avoid initial header printing. 157 */ 158 assign("noheader", ""); 159 break; 160 case 'v': 161 /* 162 * Send mailer verbose flag 163 */ 164 assign("verbose", ""); 165 break; 166 case 'I': 167 /* 168 * We're interactive 169 */ 170 assign("interactive", ""); 171 break; 172 case 'c': 173 /* 174 * Get Carbon Copy Recipient list 175 */ 176 cc = cat(cc, nalloc(optarg, GCC)); 177 break; 178 case 'b': 179 /* 180 * Get Blind Carbon Copy Recipient list 181 */ 182 bcc = cat(bcc, nalloc(optarg, GBCC)); 183 break; 184 case 'E': 185 /* 186 * Don't send empty files. 187 */ 188 assign("dontsendempty", ""); 189 break; 190 case '?': 191 fprintf(stderr, "\ 192 Usage: %s [-EiInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 193 %*s [- sendmail-options ...]\n\ 194 %s [-EiInNv] -f [name]\n\ 195 %s [-EiInNv] [-u user]\n",__progname, strlen(__progname), "", 196 __progname, __progname); 197 exit(1); 198 } 199 } 200 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 201 to = cat(to, nalloc(argv[i], GTO)); 202 for (; argv[i] != NULL; i++) 203 smopts = cat(smopts, nalloc(argv[i], 0)); 204 /* 205 * Check for inconsistent arguments. 206 */ 207 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 208 errx(1, "You must specify direct recipients with -s, -c, or -b."); 209 if (ef != NULL && to != NULL) 210 errx(1, "Cannot give -f and people to send to."); 211 tinit(); 212 setscreensize(); 213 input = stdin; 214 rcvmode = !to; 215 spreserve(); 216 if (!nosrc) { 217 char *s, *path_rc; 218 219 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 220 err(1, "malloc(path_rc) failed"); 221 222 strcpy(path_rc, _PATH_MASTER_RC); 223 while ((s = strsep(&path_rc, ":")) != NULL) 224 if (*s != '\0') 225 load(s); 226 } 227 /* 228 * Expand returns a savestr, but load only uses the file name 229 * for fopen, so it's safe to do this. 230 */ 231 if ((rc = getenv("MAILRC")) == NULL) 232 rc = "~/.mailrc"; 233 load(expand(rc)); 234 235 replyto = value("REPLYTO"); 236 if (!rcvmode) { 237 mail(to, cc, bcc, smopts, subject, replyto); 238 /* 239 * why wait? 240 */ 241 exit(senderr); 242 } 243 /* 244 * Ok, we are reading mail. 245 * Decide whether we are editing a mailbox or reading 246 * the system mailbox, and open up the right stuff. 247 */ 248 if (ef == NULL) 249 ef = "%"; 250 if (setfile(ef) < 0) 251 exit(1); /* error already reported */ 252 if (setjmp(hdrjmp) == 0) { 253 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 254 (void)signal(SIGINT, hdrstop); 255 if (value("quiet") == NULL) 256 printf("Mail version %s. Type ? for help.\n", 257 version); 258 announce(); 259 (void)fflush(stdout); 260 (void)signal(SIGINT, prevint); 261 } 262 commands(); 263 (void)signal(SIGHUP, SIG_IGN); 264 (void)signal(SIGINT, SIG_IGN); 265 (void)signal(SIGQUIT, SIG_IGN); 266 quit(); 267 exit(0); 268 } 269 270 /* 271 * Interrupt printing of the headers. 272 */ 273 /*ARGSUSED*/ 274 void 275 hdrstop(signo) 276 int signo; 277 { 278 279 (void)fflush(stdout); 280 fprintf(stderr, "\nInterrupt\n"); 281 longjmp(hdrjmp, 1); 282 } 283 284 /* 285 * Compute what the screen size for printing headers should be. 286 * We use the following algorithm for the height: 287 * If baud rate < 1200, use 9 288 * If baud rate = 1200, use 14 289 * If baud rate > 1200, use 24 or ws_row 290 * Width is either 80 or ws_col; 291 */ 292 void 293 setscreensize() 294 { 295 struct termios tbuf; 296 struct winsize ws; 297 speed_t speed; 298 299 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 300 ws.ws_col = ws.ws_row = 0; 301 if (tcgetattr(1, &tbuf) < 0) 302 speed = B9600; 303 else 304 speed = cfgetospeed(&tbuf); 305 if (speed < B1200) 306 screenheight = 9; 307 else if (speed == B1200) 308 screenheight = 14; 309 else if (ws.ws_row != 0) 310 screenheight = ws.ws_row; 311 else 312 screenheight = 24; 313 if ((realscreenheight = ws.ws_row) == 0) 314 realscreenheight = 24; 315 if ((screenwidth = ws.ws_col) == 0) 316 screenwidth = 80; 317 } 318