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 #if 0 36 static char sccsid[] = "@(#)cmd2.c 8.1 (Berkeley) 6/6/93"; 37 #endif 38 static const char rcsid[] = 39 "$FreeBSD$"; 40 #endif /* not lint */ 41 42 #include "rcv.h" 43 #include <sys/wait.h> 44 #include "extern.h" 45 46 /* 47 * Mail -- a mail program 48 * 49 * More user commands. 50 */ 51 52 /* 53 * If any arguments were given, go to the next applicable argument 54 * following dot, otherwise, go to the next applicable message. 55 * If given as first command with no arguments, print first message. 56 */ 57 int 58 next(msgvec) 59 int *msgvec; 60 { 61 register struct message *mp; 62 register int *ip, *ip2; 63 int list[2], mdot; 64 65 if (*msgvec != 0) { 66 67 /* 68 * If some messages were supplied, find the 69 * first applicable one following dot using 70 * wrap around. 71 */ 72 73 mdot = dot - &message[0] + 1; 74 75 /* 76 * Find the first message in the supplied 77 * message list which follows dot. 78 */ 79 80 for (ip = msgvec; *ip != 0; ip++) 81 if (*ip > mdot) 82 break; 83 if (*ip == 0) 84 ip = msgvec; 85 ip2 = ip; 86 do { 87 mp = &message[*ip2 - 1]; 88 if ((mp->m_flag & MDELETED) == 0) { 89 dot = mp; 90 goto hitit; 91 } 92 if (*ip2 != 0) 93 ip2++; 94 if (*ip2 == 0) 95 ip2 = msgvec; 96 } while (ip2 != ip); 97 printf("No messages applicable\n"); 98 return(1); 99 } 100 101 /* 102 * If this is the first command, select message 1. 103 * Note that this must exist for us to get here at all. 104 */ 105 106 if (!sawcom) 107 goto hitit; 108 109 /* 110 * Just find the next good message after dot, no 111 * wraparound. 112 */ 113 114 for (mp = dot+1; mp < &message[msgCount]; mp++) 115 if ((mp->m_flag & (MDELETED|MSAVED)) == 0) 116 break; 117 if (mp >= &message[msgCount]) { 118 printf("At EOF\n"); 119 return(0); 120 } 121 dot = mp; 122 hitit: 123 /* 124 * Print dot. 125 */ 126 127 list[0] = dot - &message[0] + 1; 128 list[1] = 0; 129 return(type(list)); 130 } 131 132 /* 133 * Save a message in a file. Mark the message as saved 134 * so we can discard when the user quits. 135 */ 136 int 137 save(str) 138 char str[]; 139 { 140 141 return save1(str, 1, "save", saveignore); 142 } 143 144 /* 145 * Copy a message to a file without affected its saved-ness 146 */ 147 int 148 copycmd(str) 149 char str[]; 150 { 151 152 return save1(str, 0, "copy", saveignore); 153 } 154 155 /* 156 * Save/copy the indicated messages at the end of the passed file name. 157 * If mark is true, mark the message "saved." 158 */ 159 int 160 save1(str, mark, cmd, ignore) 161 char str[]; 162 int mark; 163 char *cmd; 164 struct ignoretab *ignore; 165 { 166 register int *ip; 167 register struct message *mp; 168 char *file, *disp; 169 int f, *msgvec; 170 FILE *obuf; 171 172 msgvec = (int *) salloc((msgCount + 2) * sizeof *msgvec); 173 if ((file = snarf(str, &f)) == NOSTR) 174 return(1); 175 if (!f) { 176 *msgvec = first(0, MMNORM); 177 if (*msgvec == 0) { 178 printf("No messages to %s.\n", cmd); 179 return(1); 180 } 181 msgvec[1] = 0; 182 } 183 if (f && getmsglist(str, msgvec, 0) < 0) 184 return(1); 185 if ((file = expand(file)) == NOSTR) 186 return(1); 187 printf("\"%s\" ", file); 188 fflush(stdout); 189 if (access(file, 0) >= 0) 190 disp = "[Appended]"; 191 else 192 disp = "[New file]"; 193 if ((obuf = Fopen(file, "a")) == NULL) { 194 warn(NOSTR); 195 return(1); 196 } 197 for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) { 198 mp = &message[*ip - 1]; 199 touch(mp); 200 if (sendmessage(mp, obuf, ignore, NOSTR) < 0) { 201 warnx("%s", file); 202 Fclose(obuf); 203 return(1); 204 } 205 if (mark) 206 mp->m_flag |= MSAVED; 207 } 208 fflush(obuf); 209 if (ferror(obuf)) 210 warn("%s", file); 211 Fclose(obuf); 212 printf("%s\n", disp); 213 return(0); 214 } 215 216 /* 217 * Write the indicated messages at the end of the passed 218 * file name, minus header and trailing blank line. 219 */ 220 int 221 swrite(str) 222 char str[]; 223 { 224 225 return save1(str, 1, "write", ignoreall); 226 } 227 228 /* 229 * Snarf the file from the end of the command line and 230 * return a pointer to it. If there is no file attached, 231 * just return NOSTR. Put a null in front of the file 232 * name so that the message list processing won't see it, 233 * unless the file name is the only thing on the line, in 234 * which case, return 0 in the reference flag variable. 235 */ 236 237 char * 238 snarf(linebuf, flag) 239 char linebuf[]; 240 int *flag; 241 { 242 register char *cp; 243 244 *flag = 1; 245 cp = strlen(linebuf) + linebuf - 1; 246 247 /* 248 * Strip away trailing blanks. 249 */ 250 251 while (cp > linebuf && isspace(*cp)) 252 cp--; 253 *++cp = 0; 254 255 /* 256 * Now search for the beginning of the file name. 257 */ 258 259 while (cp > linebuf && !isspace(*cp)) 260 cp--; 261 if (*cp == '\0') { 262 printf("No file specified.\n"); 263 return(NOSTR); 264 } 265 if (isspace(*cp)) 266 *cp++ = 0; 267 else 268 *flag = 0; 269 return(cp); 270 } 271 272 /* 273 * Delete messages. 274 */ 275 int 276 delete(msgvec) 277 int msgvec[]; 278 { 279 delm(msgvec); 280 return 0; 281 } 282 283 /* 284 * Delete messages, then type the new dot. 285 */ 286 int 287 deltype(msgvec) 288 int msgvec[]; 289 { 290 int list[2]; 291 int lastdot; 292 293 lastdot = dot - &message[0] + 1; 294 if (delm(msgvec) >= 0) { 295 list[0] = dot - &message[0] + 1; 296 if (list[0] > lastdot) { 297 touch(dot); 298 list[1] = 0; 299 return(type(list)); 300 } 301 printf("At EOF\n"); 302 } else 303 printf("No more messages\n"); 304 return(0); 305 } 306 307 /* 308 * Delete the indicated messages. 309 * Set dot to some nice place afterwards. 310 * Internal interface. 311 */ 312 int 313 delm(msgvec) 314 int *msgvec; 315 { 316 register struct message *mp; 317 register *ip; 318 int last; 319 320 last = 0; 321 for (ip = msgvec; *ip != 0; ip++) { 322 mp = &message[*ip - 1]; 323 touch(mp); 324 mp->m_flag |= MDELETED|MTOUCH; 325 mp->m_flag &= ~(MPRESERVE|MSAVED|MBOX); 326 last = *ip; 327 } 328 if (last != 0) { 329 dot = &message[last-1]; 330 last = first(0, MDELETED); 331 if (last != 0) { 332 dot = &message[last-1]; 333 return(0); 334 } 335 else { 336 dot = &message[0]; 337 return(-1); 338 } 339 } 340 341 /* 342 * Following can't happen -- it keeps lint happy 343 */ 344 345 return(-1); 346 } 347 348 /* 349 * Undelete the indicated messages. 350 */ 351 int 352 undelete_messages(msgvec) 353 int *msgvec; 354 { 355 register struct message *mp; 356 register *ip; 357 358 for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) { 359 mp = &message[*ip - 1]; 360 touch(mp); 361 dot = mp; 362 mp->m_flag &= ~MDELETED; 363 } 364 return 0; 365 } 366 367 /* 368 * Interactively dump core on "core" 369 */ 370 int 371 core() 372 { 373 int pid; 374 extern int wait_status; 375 376 switch (pid = fork()) { 377 case -1: 378 warn("fork"); 379 return(1); 380 case 0: 381 abort(); 382 _exit(1); 383 } 384 printf("Okie dokie"); 385 fflush(stdout); 386 wait_child(pid); 387 if (WIFSIGNALED(wait_status) && WCOREDUMP(wait_status)) 388 printf(" -- Core dumped.\n"); 389 else 390 printf(" -- Can't dump core.\n"); 391 return 0; 392 } 393 394 /* 395 * Clobber as many bytes of stack as the user requests. 396 */ 397 int 398 clobber(argv) 399 char **argv; 400 { 401 register int times; 402 403 if (argv[0] == 0) 404 times = 1; 405 else 406 times = (atoi(argv[0]) + 511) / 512; 407 clob1(times); 408 return 0; 409 } 410 411 /* 412 * Clobber the stack. 413 */ 414 void 415 clob1(n) 416 int n; 417 { 418 char buf[512]; 419 register char *cp; 420 421 if (n <= 0) 422 return; 423 for (cp = buf; cp < &buf[512]; *cp++ = 0xFF) 424 ; 425 clob1(n - 1); 426 } 427 428 /* 429 * Add the given header fields to the retained list. 430 * If no arguments, print the current list of retained fields. 431 */ 432 int 433 retfield(list) 434 char *list[]; 435 { 436 437 return ignore1(list, ignore + 1, "retained"); 438 } 439 440 /* 441 * Add the given header fields to the ignored list. 442 * If no arguments, print the current list of ignored fields. 443 */ 444 int 445 igfield(list) 446 char *list[]; 447 { 448 449 return ignore1(list, ignore, "ignored"); 450 } 451 452 int 453 saveretfield(list) 454 char *list[]; 455 { 456 457 return ignore1(list, saveignore + 1, "retained"); 458 } 459 460 int 461 saveigfield(list) 462 char *list[]; 463 { 464 465 return ignore1(list, saveignore, "ignored"); 466 } 467 468 int 469 ignore1(list, tab, which) 470 char *list[]; 471 struct ignoretab *tab; 472 char *which; 473 { 474 char field[LINESIZE]; 475 register int h; 476 register struct ignore *igp; 477 char **ap; 478 479 if (*list == NOSTR) 480 return igshow(tab, which); 481 for (ap = list; *ap != 0; ap++) { 482 istrncpy(field, *ap, sizeof(field)); 483 if (member(field, tab)) 484 continue; 485 h = hash(field); 486 igp = (struct ignore *) calloc(1, sizeof (struct ignore)); 487 igp->i_field = calloc((unsigned) strlen(field) + 1, 488 sizeof (char)); 489 strcpy(igp->i_field, field); 490 igp->i_link = tab->i_head[h]; 491 tab->i_head[h] = igp; 492 tab->i_count++; 493 } 494 return 0; 495 } 496 497 /* 498 * Print out all currently retained fields. 499 */ 500 int 501 igshow(tab, which) 502 struct ignoretab *tab; 503 char *which; 504 { 505 register int h; 506 struct ignore *igp; 507 char **ap, **ring; 508 int igcomp(); 509 510 if (tab->i_count == 0) { 511 printf("No fields currently being %s.\n", which); 512 return 0; 513 } 514 ring = (char **) salloc((tab->i_count + 1) * sizeof (char *)); 515 ap = ring; 516 for (h = 0; h < HSHSIZE; h++) 517 for (igp = tab->i_head[h]; igp != 0; igp = igp->i_link) 518 *ap++ = igp->i_field; 519 *ap = 0; 520 qsort(ring, tab->i_count, sizeof (char *), igcomp); 521 for (ap = ring; *ap != 0; ap++) 522 printf("%s\n", *ap); 523 return 0; 524 } 525 526 /* 527 * Compare two names for sorting ignored field list. 528 */ 529 int 530 igcomp(l, r) 531 const void *l, *r; 532 { 533 return (strcmp(*(char **)l, *(char **)r)); 534 } 535