| 1 | /* |
| 2 | * Copyright (c) 1983 Eric P. Allman |
| 3 | * Copyright (c) 1988, 1993 |
| 4 | * The Regents of the University of California. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. All advertising materials mentioning features or use of this software |
| 15 | * must display the following acknowledgement: |
| 16 | * This product includes software developed by the University of |
| 17 | * California, Berkeley and its contributors. |
| 18 | * 4. Neither the name of the University nor the names of its contributors |
| 19 | * may be used to endorse or promote products derived from this software |
| 20 | * without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | */ |
| 34 | |
| 35 | #ifndef lint |
| 36 | static char sccsid[] = "@(#)envelope.c 8.3 (Berkeley) 7/13/93"; |
| 37 | #endif /* not lint */ |
| 38 | |
| 39 | #include "sendmail.h" |
| 40 | #include <sys/time.h> |
| 41 | #include <pwd.h> |
| 42 | |
| 43 | /* |
| 44 | ** NEWENVELOPE -- allocate a new envelope |
| 45 | ** |
| 46 | ** Supports inheritance. |
| 47 | ** |
| 48 | ** Parameters: |
| 49 | ** e -- the new envelope to fill in. |
| 50 | ** parent -- the envelope to be the parent of e. |
| 51 | ** |
| 52 | ** Returns: |
| 53 | ** e. |
| 54 | ** |
| 55 | ** Side Effects: |
| 56 | ** none. |
| 57 | */ |
| 58 | |
| 59 | ENVELOPE * |
| 60 | newenvelope(e, parent) |
| 61 | register ENVELOPE *e; |
| 62 | register ENVELOPE *parent; |
| 63 | { |
| 64 | extern putheader(), putbody(); |
| 65 | extern ENVELOPE BlankEnvelope; |
| 66 | |
| 67 | if (e == parent && e->e_parent != NULL) |
| 68 | parent = e->e_parent; |
| 69 | clearenvelope(e, TRUE); |
| 70 | if (e == CurEnv) |
| 71 | bcopy((char *) &NullAddress, (char *) &e->e_from, sizeof e->e_from); |
| 72 | else |
| 73 | bcopy((char *) &CurEnv->e_from, (char *) &e->e_from, sizeof e->e_from); |
| 74 | e->e_parent = parent; |
| 75 | e->e_ctime = curtime(); |
| 76 | if (parent != NULL) |
| 77 | e->e_msgpriority = parent->e_msgsize; |
| 78 | e->e_puthdr = putheader; |
| 79 | e->e_putbody = putbody; |
| 80 | if (CurEnv->e_xfp != NULL) |
| 81 | (void) fflush(CurEnv->e_xfp); |
| 82 | |
| 83 | return (e); |
| 84 | } |
| 85 | \f/* |
| 86 | ** DROPENVELOPE -- deallocate an envelope. |
| 87 | ** |
| 88 | ** Parameters: |
| 89 | ** e -- the envelope to deallocate. |
| 90 | ** |
| 91 | ** Returns: |
| 92 | ** none. |
| 93 | ** |
| 94 | ** Side Effects: |
| 95 | ** housekeeping necessary to dispose of an envelope. |
| 96 | ** Unlocks this queue file. |
| 97 | */ |
| 98 | |
| 99 | void |
| 100 | dropenvelope(e) |
| 101 | register ENVELOPE *e; |
| 102 | { |
| 103 | bool queueit = FALSE; |
| 104 | register ADDRESS *q; |
| 105 | char *id = e->e_id; |
| 106 | char buf[MAXLINE]; |
| 107 | |
| 108 | if (tTd(50, 1)) |
| 109 | { |
| 110 | printf("dropenvelope %x: id=", e); |
| 111 | xputs(e->e_id); |
| 112 | printf(", flags=%o\n", e->e_flags); |
| 113 | if (tTd(50, 10)) |
| 114 | { |
| 115 | printf("sendq="); |
| 116 | printaddr(e->e_sendqueue, TRUE); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | /* we must have an id to remove disk files */ |
| 121 | if (id == NULL) |
| 122 | return; |
| 123 | |
| 124 | #ifdef LOG |
| 125 | if (LogLevel > 84) |
| 126 | syslog(LOG_DEBUG, "dropenvelope, id=%s, flags=%o, pid=%d", |
| 127 | id, e->e_flags, getpid()); |
| 128 | #endif /* LOG */ |
| 129 | |
| 130 | /* post statistics */ |
| 131 | poststats(StatFile); |
| 132 | |
| 133 | /* |
| 134 | ** Extract state information from dregs of send list. |
| 135 | */ |
| 136 | |
| 137 | for (q = e->e_sendqueue; q != NULL; q = q->q_next) |
| 138 | { |
| 139 | if (bitset(QQUEUEUP, q->q_flags)) |
| 140 | queueit = TRUE; |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | ** See if the message timed out. |
| 145 | */ |
| 146 | |
| 147 | if (!queueit) |
| 148 | /* nothing to do */ ; |
| 149 | else if (curtime() > e->e_ctime + TimeOuts.to_q_return) |
| 150 | { |
| 151 | if (!bitset(EF_TIMEOUT, e->e_flags)) |
| 152 | { |
| 153 | (void) sprintf(buf, "Cannot send message for %s", |
| 154 | pintvl(TimeOuts.to_q_return, FALSE)); |
| 155 | if (e->e_message != NULL) |
| 156 | free(e->e_message); |
| 157 | e->e_message = newstr(buf); |
| 158 | message(buf); |
| 159 | } |
| 160 | e->e_flags |= EF_TIMEOUT|EF_CLRQUEUE; |
| 161 | fprintf(e->e_xfp, "Message could not be delivered for %s\n", |
| 162 | pintvl(TimeOuts.to_q_return, FALSE)); |
| 163 | fprintf(e->e_xfp, "Message will be deleted from queue\n"); |
| 164 | for (q = e->e_sendqueue; q != NULL; q = q->q_next) |
| 165 | { |
| 166 | if (bitset(QQUEUEUP, q->q_flags)) |
| 167 | q->q_flags |= QBADADDR; |
| 168 | } |
| 169 | } |
| 170 | else if (TimeOuts.to_q_warning > 0 && |
| 171 | curtime() > e->e_ctime + TimeOuts.to_q_warning) |
| 172 | { |
| 173 | if (!bitset(EF_WARNING|EF_RESPONSE, e->e_flags) && |
| 174 | e->e_class >= 0 && |
| 175 | strcmp(e->e_from.q_paddr, "<>") != 0) |
| 176 | { |
| 177 | (void) sprintf(buf, |
| 178 | "warning: cannot send message for %s", |
| 179 | pintvl(TimeOuts.to_q_warning, FALSE)); |
| 180 | if (e->e_message != NULL) |
| 181 | free(e->e_message); |
| 182 | e->e_message = newstr(buf); |
| 183 | message(buf); |
| 184 | e->e_flags |= EF_WARNING|EF_TIMEOUT; |
| 185 | } |
| 186 | fprintf(e->e_xfp, |
| 187 | "Warning: message still undelivered after %s\n", |
| 188 | pintvl(TimeOuts.to_q_warning, FALSE)); |
| 189 | fprintf(e->e_xfp, "Will keep trying until message is %s old\n", |
| 190 | pintvl(TimeOuts.to_q_return, FALSE)); |
| 191 | for (q = e->e_sendqueue; q != NULL; q = q->q_next) |
| 192 | { |
| 193 | if (bitset(QQUEUEUP, q->q_flags)) |
| 194 | q->q_flags |= QREPORT; |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | /* |
| 199 | ** Send back return receipts as requested. |
| 200 | */ |
| 201 | |
| 202 | if (e->e_receiptto != NULL && bitset(EF_SENDRECEIPT, e->e_flags)) |
| 203 | { |
| 204 | auto ADDRESS *rlist = NULL; |
| 205 | |
| 206 | (void) sendtolist(e->e_receiptto, (ADDRESS *) NULL, &rlist, e); |
| 207 | (void) returntosender("Return receipt", rlist, FALSE, e); |
| 208 | } |
| 209 | |
| 210 | /* |
| 211 | ** Arrange to send error messages if there are fatal errors. |
| 212 | */ |
| 213 | |
| 214 | if (bitset(EF_FATALERRS|EF_TIMEOUT, e->e_flags) && |
| 215 | e->e_errormode != EM_QUIET) |
| 216 | savemail(e); |
| 217 | |
| 218 | /* |
| 219 | ** Instantiate or deinstantiate the queue. |
| 220 | */ |
| 221 | |
| 222 | if ((!queueit && !bitset(EF_KEEPQUEUE, e->e_flags)) || |
| 223 | bitset(EF_CLRQUEUE, e->e_flags)) |
| 224 | { |
| 225 | if (tTd(50, 2)) |
| 226 | printf("Dropping envelope\n"); |
| 227 | if (e->e_df != NULL) |
| 228 | xunlink(e->e_df); |
| 229 | xunlink(queuename(e, 'q')); |
| 230 | } |
| 231 | else if (queueit || !bitset(EF_INQUEUE, e->e_flags)) |
| 232 | { |
| 233 | #ifdef QUEUE |
| 234 | queueup(e, FALSE, FALSE); |
| 235 | #else /* QUEUE */ |
| 236 | syserr("554 dropenvelope: queueup"); |
| 237 | #endif /* QUEUE */ |
| 238 | } |
| 239 | |
| 240 | /* now unlock the job */ |
| 241 | closexscript(e); |
| 242 | unlockqueue(e); |
| 243 | |
| 244 | /* make sure that this envelope is marked unused */ |
| 245 | if (e->e_dfp != NULL) |
| 246 | (void) xfclose(e->e_dfp, "dropenvelope", e->e_df); |
| 247 | e->e_dfp = NULL; |
| 248 | e->e_id = e->e_df = NULL; |
| 249 | |
| 250 | #ifdef LOG |
| 251 | if (LogLevel > 74) |
| 252 | syslog(LOG_INFO, "%s: done", id); |
| 253 | #endif /* LOG */ |
| 254 | } |
| 255 | \f/* |
| 256 | ** CLEARENVELOPE -- clear an envelope without unlocking |
| 257 | ** |
| 258 | ** This is normally used by a child process to get a clean |
| 259 | ** envelope without disturbing the parent. |
| 260 | ** |
| 261 | ** Parameters: |
| 262 | ** e -- the envelope to clear. |
| 263 | ** fullclear - if set, the current envelope is total |
| 264 | ** garbage and should be ignored; otherwise, |
| 265 | ** release any resources it may indicate. |
| 266 | ** |
| 267 | ** Returns: |
| 268 | ** none. |
| 269 | ** |
| 270 | ** Side Effects: |
| 271 | ** Closes files associated with the envelope. |
| 272 | ** Marks the envelope as unallocated. |
| 273 | */ |
| 274 | |
| 275 | void |
| 276 | clearenvelope(e, fullclear) |
| 277 | register ENVELOPE *e; |
| 278 | bool fullclear; |
| 279 | { |
| 280 | register HDR *bh; |
| 281 | register HDR **nhp; |
| 282 | extern ENVELOPE BlankEnvelope; |
| 283 | |
| 284 | if (!fullclear) |
| 285 | { |
| 286 | /* clear out any file information */ |
| 287 | if (e->e_xfp != NULL) |
| 288 | (void) xfclose(e->e_xfp, "clearenvelope xfp", e->e_id); |
| 289 | if (e->e_dfp != NULL) |
| 290 | (void) xfclose(e->e_dfp, "clearenvelope dfp", e->e_df); |
| 291 | e->e_xfp = e->e_dfp = NULL; |
| 292 | } |
| 293 | |
| 294 | /* now clear out the data */ |
| 295 | STRUCTCOPY(BlankEnvelope, *e); |
| 296 | if (Verbose) |
| 297 | e->e_sendmode = SM_DELIVER; |
| 298 | bh = BlankEnvelope.e_header; |
| 299 | nhp = &e->e_header; |
| 300 | while (bh != NULL) |
| 301 | { |
| 302 | *nhp = (HDR *) xalloc(sizeof *bh); |
| 303 | bcopy((char *) bh, (char *) *nhp, sizeof *bh); |
| 304 | bh = bh->h_link; |
| 305 | nhp = &(*nhp)->h_link; |
| 306 | } |
| 307 | } |
| 308 | \f/* |
| 309 | ** INITSYS -- initialize instantiation of system |
| 310 | ** |
| 311 | ** In Daemon mode, this is done in the child. |
| 312 | ** |
| 313 | ** Parameters: |
| 314 | ** none. |
| 315 | ** |
| 316 | ** Returns: |
| 317 | ** none. |
| 318 | ** |
| 319 | ** Side Effects: |
| 320 | ** Initializes the system macros, some global variables, |
| 321 | ** etc. In particular, the current time in various |
| 322 | ** forms is set. |
| 323 | */ |
| 324 | |
| 325 | void |
| 326 | initsys(e) |
| 327 | register ENVELOPE *e; |
| 328 | { |
| 329 | static char cbuf[5]; /* holds hop count */ |
| 330 | static char pbuf[10]; /* holds pid */ |
| 331 | #ifdef TTYNAME |
| 332 | static char ybuf[60]; /* holds tty id */ |
| 333 | register char *p; |
| 334 | #endif /* TTYNAME */ |
| 335 | extern char *ttyname(); |
| 336 | extern void settime(); |
| 337 | extern char Version[]; |
| 338 | |
| 339 | /* |
| 340 | ** Give this envelope a reality. |
| 341 | ** I.e., an id, a transcript, and a creation time. |
| 342 | */ |
| 343 | |
| 344 | openxscript(e); |
| 345 | e->e_ctime = curtime(); |
| 346 | |
| 347 | /* |
| 348 | ** Set OutChannel to something useful if stdout isn't it. |
| 349 | ** This arranges that any extra stuff the mailer produces |
| 350 | ** gets sent back to the user on error (because it is |
| 351 | ** tucked away in the transcript). |
| 352 | */ |
| 353 | |
| 354 | if (OpMode == MD_DAEMON && !bitset(EF_QUEUERUN, e->e_flags) && |
| 355 | e->e_xfp != NULL) |
| 356 | OutChannel = e->e_xfp; |
| 357 | |
| 358 | /* |
| 359 | ** Set up some basic system macros. |
| 360 | */ |
| 361 | |
| 362 | /* process id */ |
| 363 | (void) sprintf(pbuf, "%d", getpid()); |
| 364 | define('p', pbuf, e); |
| 365 | |
| 366 | /* hop count */ |
| 367 | (void) sprintf(cbuf, "%d", e->e_hopcount); |
| 368 | define('c', cbuf, e); |
| 369 | |
| 370 | /* time as integer, unix time, arpa time */ |
| 371 | settime(e); |
| 372 | |
| 373 | #ifdef TTYNAME |
| 374 | /* tty name */ |
| 375 | if (macvalue('y', e) == NULL) |
| 376 | { |
| 377 | p = ttyname(2); |
| 378 | if (p != NULL) |
| 379 | { |
| 380 | if (strrchr(p, '/') != NULL) |
| 381 | p = strrchr(p, '/') + 1; |
| 382 | (void) strcpy(ybuf, p); |
| 383 | define('y', ybuf, e); |
| 384 | } |
| 385 | } |
| 386 | #endif /* TTYNAME */ |
| 387 | } |
| 388 | \f/* |
| 389 | ** SETTIME -- set the current time. |
| 390 | ** |
| 391 | ** Parameters: |
| 392 | ** none. |
| 393 | ** |
| 394 | ** Returns: |
| 395 | ** none. |
| 396 | ** |
| 397 | ** Side Effects: |
| 398 | ** Sets the various time macros -- $a, $b, $d, $t. |
| 399 | */ |
| 400 | |
| 401 | void |
| 402 | settime(e) |
| 403 | register ENVELOPE *e; |
| 404 | { |
| 405 | register char *p; |
| 406 | auto time_t now; |
| 407 | static char tbuf[20]; /* holds "current" time */ |
| 408 | static char dbuf[30]; /* holds ctime(tbuf) */ |
| 409 | register struct tm *tm; |
| 410 | extern char *arpadate(); |
| 411 | extern struct tm *gmtime(); |
| 412 | |
| 413 | now = curtime(); |
| 414 | tm = gmtime(&now); |
| 415 | (void) sprintf(tbuf, "%04d%02d%02d%02d%02d", tm->tm_year + 1900, |
| 416 | tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min); |
| 417 | define('t', tbuf, e); |
| 418 | (void) strcpy(dbuf, ctime(&now)); |
| 419 | p = strchr(dbuf, '\n'); |
| 420 | if (p != NULL) |
| 421 | *p = '\0'; |
| 422 | define('d', dbuf, e); |
| 423 | p = newstr(arpadate(dbuf)); |
| 424 | if (macvalue('a', e) == NULL) |
| 425 | define('a', p, e); |
| 426 | define('b', p, e); |
| 427 | } |
| 428 | \f/* |
| 429 | ** OPENXSCRIPT -- Open transcript file |
| 430 | ** |
| 431 | ** Creates a transcript file for possible eventual mailing or |
| 432 | ** sending back. |
| 433 | ** |
| 434 | ** Parameters: |
| 435 | ** e -- the envelope to create the transcript in/for. |
| 436 | ** |
| 437 | ** Returns: |
| 438 | ** none |
| 439 | ** |
| 440 | ** Side Effects: |
| 441 | ** Creates the transcript file. |
| 442 | */ |
| 443 | |
| 444 | #ifndef O_APPEND |
| 445 | #define O_APPEND 0 |
| 446 | #endif |
| 447 | |
| 448 | void |
| 449 | openxscript(e) |
| 450 | register ENVELOPE *e; |
| 451 | { |
| 452 | register char *p; |
| 453 | int fd; |
| 454 | |
| 455 | if (e->e_xfp != NULL) |
| 456 | return; |
| 457 | p = queuename(e, 'x'); |
| 458 | fd = open(p, O_WRONLY|O_CREAT|O_APPEND, 0644); |
| 459 | if (fd < 0) |
| 460 | { |
| 461 | syserr("Can't create transcript file %s", p); |
| 462 | fd = open("/dev/null", O_WRONLY, 0644); |
| 463 | if (fd < 0) |
| 464 | syserr("!Can't open /dev/null"); |
| 465 | } |
| 466 | e->e_xfp = fdopen(fd, "w"); |
| 467 | } |
| 468 | \f/* |
| 469 | ** CLOSEXSCRIPT -- close the transcript file. |
| 470 | ** |
| 471 | ** Parameters: |
| 472 | ** e -- the envelope containing the transcript to close. |
| 473 | ** |
| 474 | ** Returns: |
| 475 | ** none. |
| 476 | ** |
| 477 | ** Side Effects: |
| 478 | ** none. |
| 479 | */ |
| 480 | |
| 481 | void |
| 482 | closexscript(e) |
| 483 | register ENVELOPE *e; |
| 484 | { |
| 485 | if (e->e_xfp == NULL) |
| 486 | return; |
| 487 | (void) xfclose(e->e_xfp, "closexscript", e->e_id); |
| 488 | e->e_xfp = NULL; |
| 489 | } |
| 490 | \f/* |
| 491 | ** SETSENDER -- set the person who this message is from |
| 492 | ** |
| 493 | ** Under certain circumstances allow the user to say who |
| 494 | ** s/he is (using -f or -r). These are: |
| 495 | ** 1. The user's uid is zero (root). |
| 496 | ** 2. The user's login name is in an approved list (typically |
| 497 | ** from a network server). |
| 498 | ** 3. The address the user is trying to claim has a |
| 499 | ** "!" character in it (since #2 doesn't do it for |
| 500 | ** us if we are dialing out for UUCP). |
| 501 | ** A better check to replace #3 would be if the |
| 502 | ** effective uid is "UUCP" -- this would require me |
| 503 | ** to rewrite getpwent to "grab" uucp as it went by, |
| 504 | ** make getname more nasty, do another passwd file |
| 505 | ** scan, or compile the UID of "UUCP" into the code, |
| 506 | ** all of which are reprehensible. |
| 507 | ** |
| 508 | ** Assuming all of these fail, we figure out something |
| 509 | ** ourselves. |
| 510 | ** |
| 511 | ** Parameters: |
| 512 | ** from -- the person we would like to believe this message |
| 513 | ** is from, as specified on the command line. |
| 514 | ** e -- the envelope in which we would like the sender set. |
| 515 | ** delimptr -- if non-NULL, set to the location of the |
| 516 | ** trailing delimiter. |
| 517 | ** internal -- set if this address is coming from an internal |
| 518 | ** source such as an owner alias. |
| 519 | ** |
| 520 | ** Returns: |
| 521 | ** none. |
| 522 | ** |
| 523 | ** Side Effects: |
| 524 | ** sets sendmail's notion of who the from person is. |
| 525 | */ |
| 526 | |
| 527 | void |
| 528 | setsender(from, e, delimptr, internal) |
| 529 | char *from; |
| 530 | register ENVELOPE *e; |
| 531 | char **delimptr; |
| 532 | bool internal; |
| 533 | { |
| 534 | register char **pvp; |
| 535 | char *realname = NULL; |
| 536 | register struct passwd *pw; |
| 537 | char delimchar; |
| 538 | char buf[MAXNAME]; |
| 539 | char pvpbuf[PSBUFSIZE]; |
| 540 | extern struct passwd *getpwnam(); |
| 541 | extern char *FullName; |
| 542 | |
| 543 | if (tTd(45, 1)) |
| 544 | printf("setsender(%s)\n", from == NULL ? "" : from); |
| 545 | |
| 546 | /* |
| 547 | ** Figure out the real user executing us. |
| 548 | ** Username can return errno != 0 on non-errors. |
| 549 | */ |
| 550 | |
| 551 | if (bitset(EF_QUEUERUN, e->e_flags) || OpMode == MD_SMTP) |
| 552 | realname = from; |
| 553 | if (realname == NULL || realname[0] == '\0') |
| 554 | realname = username(); |
| 555 | |
| 556 | if (ConfigLevel < 2) |
| 557 | SuprErrs = TRUE; |
| 558 | |
| 559 | delimchar = internal ? '\0' : ' '; |
| 560 | if (from == NULL || |
| 561 | parseaddr(from, &e->e_from, 1, delimchar, delimptr, e) == NULL) |
| 562 | { |
| 563 | /* log garbage addresses for traceback */ |
| 564 | # ifdef LOG |
| 565 | if (from != NULL && LogLevel > 2) |
| 566 | { |
| 567 | char *p; |
| 568 | char ebuf[MAXNAME * 2 + 2]; |
| 569 | |
| 570 | p = macvalue('_', e); |
| 571 | if (p == NULL) |
| 572 | { |
| 573 | char *host = RealHostName; |
| 574 | if (host == NULL) |
| 575 | host = MyHostName; |
| 576 | (void) sprintf(ebuf, "%s@%s", realname, host); |
| 577 | p = ebuf; |
| 578 | } |
| 579 | syslog(LOG_NOTICE, |
| 580 | "from=%s unparseable, received from %s", |
| 581 | from, p); |
| 582 | } |
| 583 | # endif /* LOG */ |
| 584 | if (from != NULL) |
| 585 | SuprErrs = TRUE; |
| 586 | if (from == realname || |
| 587 | parseaddr(from = newstr(realname), &e->e_from, 1, ' ', NULL, e) == NULL) |
| 588 | { |
| 589 | SuprErrs = TRUE; |
| 590 | if (parseaddr("postmaster", &e->e_from, 1, ' ', NULL, e) == NULL) |
| 591 | syserr("553 setsender: can't even parse postmaster!"); |
| 592 | } |
| 593 | } |
| 594 | else |
| 595 | FromFlag = TRUE; |
| 596 | e->e_from.q_flags |= QDONTSEND; |
| 597 | if (tTd(45, 5)) |
| 598 | { |
| 599 | printf("setsender: QDONTSEND "); |
| 600 | printaddr(&e->e_from, FALSE); |
| 601 | } |
| 602 | SuprErrs = FALSE; |
| 603 | |
| 604 | pvp = NULL; |
| 605 | if (e->e_from.q_mailer == LocalMailer) |
| 606 | { |
| 607 | # ifdef USERDB |
| 608 | register char *p; |
| 609 | extern char *udbsender(); |
| 610 | # endif |
| 611 | |
| 612 | if (!internal) |
| 613 | { |
| 614 | /* if the user has given fullname already, don't redefine */ |
| 615 | if (FullName == NULL) |
| 616 | FullName = macvalue('x', e); |
| 617 | if (FullName != NULL && FullName[0] == '\0') |
| 618 | FullName = NULL; |
| 619 | |
| 620 | # ifdef USERDB |
| 621 | p = udbsender(from); |
| 622 | |
| 623 | if (p != NULL) |
| 624 | { |
| 625 | /* |
| 626 | ** We have an alternate address for the sender |
| 627 | */ |
| 628 | |
| 629 | pvp = prescan(p, '\0', pvpbuf, NULL); |
| 630 | } |
| 631 | # endif /* USERDB */ |
| 632 | } |
| 633 | |
| 634 | if ((pw = getpwnam(e->e_from.q_user)) != NULL) |
| 635 | { |
| 636 | /* |
| 637 | ** Process passwd file entry. |
| 638 | */ |
| 639 | |
| 640 | |
| 641 | /* extract home directory */ |
| 642 | e->e_from.q_home = newstr(pw->pw_dir); |
| 643 | define('z', e->e_from.q_home, e); |
| 644 | |
| 645 | /* extract user and group id */ |
| 646 | e->e_from.q_uid = pw->pw_uid; |
| 647 | e->e_from.q_gid = pw->pw_gid; |
| 648 | |
| 649 | /* extract full name from passwd file */ |
| 650 | if (FullName == NULL && pw->pw_gecos != NULL && |
| 651 | strcmp(pw->pw_name, e->e_from.q_user) == 0 && |
| 652 | !internal) |
| 653 | { |
| 654 | buildfname(pw->pw_gecos, e->e_from.q_user, buf); |
| 655 | if (buf[0] != '\0') |
| 656 | FullName = newstr(buf); |
| 657 | } |
| 658 | } |
| 659 | if (FullName != NULL && !internal) |
| 660 | define('x', FullName, e); |
| 661 | } |
| 662 | else if (!internal) |
| 663 | { |
| 664 | if (e->e_from.q_home == NULL) |
| 665 | e->e_from.q_home = getenv("HOME"); |
| 666 | e->e_from.q_uid = RealUid; |
| 667 | e->e_from.q_gid = RealGid; |
| 668 | } |
| 669 | |
| 670 | /* |
| 671 | ** Rewrite the from person to dispose of possible implicit |
| 672 | ** links in the net. |
| 673 | */ |
| 674 | |
| 675 | if (pvp == NULL) |
| 676 | pvp = prescan(from, '\0', pvpbuf, NULL); |
| 677 | if (pvp == NULL) |
| 678 | { |
| 679 | /* don't need to give error -- prescan did that already */ |
| 680 | # ifdef LOG |
| 681 | if (LogLevel > 2) |
| 682 | syslog(LOG_NOTICE, "cannot prescan from (%s)", from); |
| 683 | # endif |
| 684 | finis(); |
| 685 | } |
| 686 | (void) rewrite(pvp, 3, e); |
| 687 | (void) rewrite(pvp, 1, e); |
| 688 | (void) rewrite(pvp, 4, e); |
| 689 | cataddr(pvp, NULL, buf, sizeof buf, '\0'); |
| 690 | e->e_sender = newstr(buf); |
| 691 | define('f', e->e_sender, e); |
| 692 | |
| 693 | /* save the domain spec if this mailer wants it */ |
| 694 | if (!internal && e->e_from.q_mailer != NULL && |
| 695 | bitnset(M_CANONICAL, e->e_from.q_mailer->m_flags)) |
| 696 | { |
| 697 | extern char **copyplist(); |
| 698 | |
| 699 | while (*pvp != NULL && strcmp(*pvp, "@") != 0) |
| 700 | pvp++; |
| 701 | if (*pvp != NULL) |
| 702 | e->e_fromdomain = copyplist(pvp, TRUE); |
| 703 | } |
| 704 | } |