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 8.1 (Berkeley) 6/6/93"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 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, *cp; 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 replyto = NULL; 97 while ((i = getopt(argc, argv, "INT:b:c:dfins:u:v")) != -1) { 98 switch (i) { 99 case 'T': 100 /* 101 * Next argument is temp file to write which 102 * articles have been read/deleted for netnews. 103 */ 104 Tflag = optarg; 105 if ((i = open(Tflag, O_CREAT | O_TRUNC | O_WRONLY, 106 0600)) < 0) 107 err(1, "%s", Tflag); 108 (void)close(i); 109 break; 110 case 'u': 111 /* 112 * Next argument is person to pretend to be. 113 */ 114 myname = optarg; 115 unsetenv("MAIL"); 116 break; 117 case 'i': 118 /* 119 * User wants to ignore interrupts. 120 * Set the variable "ignore" 121 */ 122 assign("ignore", ""); 123 break; 124 case 'd': 125 debug++; 126 break; 127 case 's': 128 /* 129 * Give a subject field for sending from 130 * non terminal 131 */ 132 subject = optarg; 133 break; 134 case 'f': 135 /* 136 * User is specifying file to "edit" with Mail, 137 * as opposed to reading system mailbox. 138 * If no argument is given after -f, we read his 139 * mbox file. 140 * 141 * getopt() can't handle optional arguments, so here 142 * is an ugly hack to get around it. 143 */ 144 if ((argv[optind] != NULL) && (argv[optind][0] != '-')) 145 ef = argv[optind++]; 146 else 147 ef = "&"; 148 break; 149 case 'n': 150 /* 151 * User doesn't want to source /usr/lib/Mail.rc 152 */ 153 nosrc++; 154 break; 155 case 'N': 156 /* 157 * Avoid initial header printing. 158 */ 159 assign("noheader", ""); 160 break; 161 case 'v': 162 /* 163 * Send mailer verbose flag 164 */ 165 assign("verbose", ""); 166 break; 167 case 'I': 168 /* 169 * We're interactive 170 */ 171 assign("interactive", ""); 172 break; 173 case 'c': 174 /* 175 * Get Carbon Copy Recipient list 176 */ 177 cc = cat(cc, nalloc(optarg, GCC)); 178 break; 179 case 'b': 180 /* 181 * Get Blind Carbon Copy Recipient list 182 */ 183 bcc = cat(bcc, nalloc(optarg, GBCC)); 184 break; 185 case '?': 186 fprintf(stderr, "\ 187 Usage: %s [-iInv] [-s subject] [-c cc-addr] [-b bcc-addr] to-addr ...\n\ 188 %*s [- sendmail-options ...]\n\ 189 %s [-iInNv] -f [name]\n\ 190 %s [-iInNv] [-u user]\n",__progname, strlen(__progname), "", __progname, 191 __progname); 192 exit(1); 193 } 194 } 195 for (i = optind; (argv[i] != NULL) && (*argv[i] != '-'); i++) 196 to = cat(to, nalloc(argv[i], GTO)); 197 for (; argv[i] != NULL; i++) 198 smopts = cat(smopts, nalloc(argv[i], 0)); 199 /* 200 * Check for inconsistent arguments. 201 */ 202 if (to == NULL && (subject != NULL || cc != NULL || bcc != NULL)) 203 errx(1, "You must specify direct recipients with -s, -c, or -b."); 204 if (ef != NULL && to != NULL) 205 errx(1, "Cannot give -f and people to send to."); 206 tinit(); 207 setscreensize(); 208 input = stdin; 209 rcvmode = !to; 210 spreserve(); 211 if (!nosrc) { 212 char *s, *path_rc; 213 214 if ((path_rc = malloc(sizeof(_PATH_MASTER_RC))) == NULL) 215 err(1, "malloc(path_rc) failed"); 216 217 strcpy(path_rc, _PATH_MASTER_RC); 218 while ((s = strsep(&path_rc, ":")) != NULL) 219 if (*s != '\0') 220 load(s); 221 } 222 if ((cp = getenv("REPLYTO")) != NULL) 223 replyto = cp; 224 225 /* 226 * Expand returns a savestr, but load only uses the file name 227 * for fopen, so it's safe to do this. 228 */ 229 load(expand("~/.mailrc")); 230 if (!rcvmode) { 231 mail(to, cc, bcc, smopts, subject, replyto); 232 /* 233 * why wait? 234 */ 235 exit(senderr); 236 } 237 /* 238 * Ok, we are reading mail. 239 * Decide whether we are editing a mailbox or reading 240 * the system mailbox, and open up the right stuff. 241 */ 242 if (ef == NULL) 243 ef = "%"; 244 if (setfile(ef) < 0) 245 exit(1); /* error already reported */ 246 if (setjmp(hdrjmp) == 0) { 247 if ((prevint = signal(SIGINT, SIG_IGN)) != SIG_IGN) 248 (void)signal(SIGINT, hdrstop); 249 if (value("quiet") == NULL) 250 printf("Mail version %s. Type ? for help.\n", 251 version); 252 announce(); 253 (void)fflush(stdout); 254 (void)signal(SIGINT, prevint); 255 } 256 commands(); 257 (void)signal(SIGHUP, SIG_IGN); 258 (void)signal(SIGINT, SIG_IGN); 259 (void)signal(SIGQUIT, SIG_IGN); 260 quit(); 261 exit(0); 262 } 263 264 /* 265 * Interrupt printing of the headers. 266 */ 267 /*ARGSUSED*/ 268 void 269 hdrstop(signo) 270 int signo; 271 { 272 273 (void)fflush(stdout); 274 fprintf(stderr, "\nInterrupt\n"); 275 longjmp(hdrjmp, 1); 276 } 277 278 /* 279 * Compute what the screen size for printing headers should be. 280 * We use the following algorithm for the height: 281 * If baud rate < 1200, use 9 282 * If baud rate = 1200, use 14 283 * If baud rate > 1200, use 24 or ws_row 284 * Width is either 80 or ws_col; 285 */ 286 void 287 setscreensize() 288 { 289 struct winsize ws; 290 struct termios tio; 291 speed_t speed = 0; 292 293 if (ioctl(1, TIOCGWINSZ, (char *)&ws) < 0) 294 ws.ws_col = ws.ws_row = 0; 295 if (tcgetattr(1, &tio) != -1) 296 speed = cfgetospeed(&tio); 297 if (speed <= 0) 298 speed = B9600; 299 if (speed < B1200) 300 screenheight = 9; 301 else if (speed == B1200) 302 screenheight = 14; 303 else if (ws.ws_row != 0) 304 screenheight = ws.ws_row; 305 else 306 screenheight = 24; 307 if ((realscreenheight = ws.ws_row) == 0) 308 realscreenheight = 24; 309 if ((screenwidth = ws.ws_col) == 0) 310 screenwidth = 80; 311 } 312