1 /* 2 * Copyright (c) 1998 Sendmail, Inc. All rights reserved. 3 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * By using this file, you agree to the terms and conditions set 8 * forth in the LICENSE file which can be found at the top level of 9 * the sendmail distribution. 10 * 11 * 12 * @(#)sendmail.h 8.280 (Berkeley) 6/5/98 13 */ 14 15 /* 16 ** SENDMAIL.H -- Global definitions for sendmail. 17 */ 18 19 # ifdef _DEFINE 20 # define EXTERN 21 # ifndef lint 22 static char SmailSccsId[] = "@(#)sendmail.h 8.280 6/5/98"; 23 # endif 24 # else /* _DEFINE */ 25 # define EXTERN extern 26 # endif /* _DEFINE */ 27 28 # include <unistd.h> 29 # include <stddef.h> 30 # include <stdlib.h> 31 # include <stdio.h> 32 # include <ctype.h> 33 # include <setjmp.h> 34 # include <string.h> 35 # include <time.h> 36 # include <errno.h> 37 # ifdef EX_OK 38 # undef EX_OK /* for SVr4.2 SMP */ 39 # endif 40 # include <sysexits.h> 41 42 # include "conf.h" 43 # include "useful.h" 44 45 # ifdef LOG 46 # include <syslog.h> 47 # endif /* LOG */ 48 49 # if NETINET || NETUNIX || NETISO || NETNS || NETX25 50 # include <sys/socket.h> 51 # endif 52 # if NETUNIX 53 # include <sys/un.h> 54 # endif 55 # if NETINET 56 # include <netinet/in.h> 57 # endif 58 # if NETISO 59 # include <netiso/iso.h> 60 # endif 61 # if NETNS 62 # include <netns/ns.h> 63 # endif 64 # if NETX25 65 # include <netccitt/x25.h> 66 # endif 67 68 #if NAMED_BIND 69 # include <arpa/nameser.h> 70 # ifdef NOERROR 71 # undef NOERROR /* avoid <sys/streams.h> conflict */ 72 # endif 73 #endif 74 75 #ifdef HESIOD 76 # include <hesiod.h> 77 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 78 # define HESIOD_INIT /* support for the new interface */ 79 EXTERN void *HesiodContext; 80 # endif 81 #endif 82 83 /* 84 ** Following are "sort of" configuration constants, but they should 85 ** be pretty solid on most architectures today. They have to be 86 ** defined after <arpa/nameser.h> because some versions of that 87 ** file also define them. In all cases, we can't use sizeof because 88 ** some systems (e.g., Crays) always treat everything as being at 89 ** least 64 bits. 90 */ 91 92 #ifndef INADDRSZ 93 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 94 #endif 95 #ifndef INT16SZ 96 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 97 #endif 98 #ifndef INT32SZ 99 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 100 #endif 101 102 103 104 /* forward references for prototypes */ 105 typedef struct envelope ENVELOPE; 106 typedef struct mailer MAILER; 107 108 109 /* 110 ** Data structure for bit maps. 111 ** 112 ** Each bit in this map can be referenced by an ascii character. 113 ** This is 256 possible bits, or 32 8-bit bytes. 114 */ 115 116 #define BITMAPBYTES 32 /* number of bytes in a bit map */ 117 #define BYTEBITS 8 /* number of bits in a byte */ 118 119 /* internal macros */ 120 #define _BITWORD(bit) ((bit) / (BYTEBITS * sizeof (int))) 121 #define _BITBIT(bit) (1 << ((bit) % (BYTEBITS * sizeof (int)))) 122 123 typedef int BITMAP[BITMAPBYTES / sizeof (int)]; 124 125 /* test bit number N */ 126 #define bitnset(bit, map) ((map)[_BITWORD(bit)] & _BITBIT(bit)) 127 128 /* set bit number N */ 129 #define setbitn(bit, map) (map)[_BITWORD(bit)] |= _BITBIT(bit) 130 131 /* clear bit number N */ 132 #define clrbitn(bit, map) (map)[_BITWORD(bit)] &= ~_BITBIT(bit) 133 134 /* clear an entire bit map */ 135 #define clrbitmap(map) bzero((char *) map, BITMAPBYTES) 136 137 138 /* 139 ** Utility macros 140 */ 141 142 /* return number of bytes left in a buffer */ 143 #define SPACELEFT(buf, ptr) (sizeof buf - ((ptr) - buf)) 144 /* 145 ** Address structure. 146 ** Addresses are stored internally in this structure. 147 */ 148 149 struct address 150 { 151 char *q_paddr; /* the printname for the address */ 152 char *q_user; /* user name */ 153 char *q_ruser; /* real user name, or NULL if q_user */ 154 char *q_host; /* host name */ 155 struct mailer *q_mailer; /* mailer to use */ 156 u_long q_flags; /* status flags, see below */ 157 uid_t q_uid; /* user-id of receiver (if known) */ 158 gid_t q_gid; /* group-id of receiver (if known) */ 159 char *q_home; /* home dir (local mailer only) */ 160 char *q_fullname; /* full name if known */ 161 struct address *q_next; /* chain */ 162 struct address *q_alias; /* address this results from */ 163 char *q_owner; /* owner of q_alias */ 164 struct address *q_tchain; /* temporary use chain */ 165 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 166 char *q_status; /* status code for DSNs */ 167 char *q_rstatus; /* remote status message for DSNs */ 168 time_t q_statdate; /* date of status messages */ 169 char *q_statmta; /* MTA generating q_rstatus */ 170 short q_specificity; /* how "specific" this address is */ 171 }; 172 173 typedef struct address ADDRESS; 174 175 # define QDONTSEND 0x00000001 /* don't send to this address */ 176 # define QBADADDR 0x00000002 /* this address is verified bad */ 177 # define QGOODUID 0x00000004 /* the q_uid q_gid fields are good */ 178 # define QPRIMARY 0x00000008 /* set from RCPT or argv */ 179 # define QQUEUEUP 0x00000010 /* queue for later transmission */ 180 # define QSENT 0x00000020 /* has been successfully delivered */ 181 # define QNOTREMOTE 0x00000040 /* address not for remote forwarding */ 182 # define QSELFREF 0x00000080 /* this address references itself */ 183 # define QVERIFIED 0x00000100 /* verified, but not expanded */ 184 # define QBOGUSSHELL 0x00000400 /* user has no valid shell listed */ 185 # define QUNSAFEADDR 0x00000800 /* address aquired via unsafe path */ 186 # define QPINGONSUCCESS 0x00001000 /* give return on successful delivery */ 187 # define QPINGONFAILURE 0x00002000 /* give return on failure */ 188 # define QPINGONDELAY 0x00004000 /* give return on message delay */ 189 # define QHASNOTIFY 0x00008000 /* propogate notify parameter */ 190 # define QRELAYED 0x00010000 /* DSN: relayed to non-DSN aware sys */ 191 # define QEXPANDED 0x00020000 /* DSN: undergone list expansion */ 192 # define QDELIVERED 0x00040000 /* DSN: successful final delivery */ 193 # define QDELAYED 0x00080000 /* DSN: message delayed */ 194 # define QTHISPASS 0x40000000 /* temp: address set this pass */ 195 # define QRCPTOK 0x80000000 /* recipient() processed address */ 196 197 # define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 198 199 # define NULLADDR ((ADDRESS *) NULL) 200 201 /* functions */ 202 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, ENVELOPE *)); 203 extern ADDRESS *buildaddr __P((char **, ADDRESS *, int, ENVELOPE *)); 204 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 205 extern char **prescan __P((char *, int, char[], int, char **, u_char *)); 206 extern int rewrite __P((char **, int, int, ENVELOPE *)); 207 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 208 extern ADDRESS *getctladdr __P((ADDRESS *)); 209 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 210 extern bool emptyaddr __P((ADDRESS *)); 211 extern void printaddr __P((ADDRESS *, bool)); 212 extern void cataddr __P((char **, char **, char *, int, int)); 213 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 214 /* 215 ** Mailer definition structure. 216 ** Every mailer known to the system is declared in this 217 ** structure. It defines the pathname of the mailer, some 218 ** flags associated with it, and the argument vector to 219 ** pass to it. The flags are defined in conf.c 220 ** 221 ** The argument vector is expanded before actual use. All 222 ** words except the first are passed through the macro 223 ** processor. 224 */ 225 226 struct mailer 227 { 228 char *m_name; /* symbolic name of this mailer */ 229 char *m_mailer; /* pathname of the mailer to use */ 230 char *m_mtatype; /* type of this MTA */ 231 char *m_addrtype; /* type for addresses */ 232 char *m_diagtype; /* type for diagnostics */ 233 BITMAP m_flags; /* status flags, see below */ 234 short m_mno; /* mailer number internally */ 235 short m_nice; /* niceness to run at (mostly for prog) */ 236 char **m_argv; /* template argument vector */ 237 short m_sh_rwset; /* rewrite set: sender header addresses */ 238 short m_se_rwset; /* rewrite set: sender envelope addresses */ 239 short m_rh_rwset; /* rewrite set: recipient header addresses */ 240 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 241 char *m_eol; /* end of line string */ 242 long m_maxsize; /* size limit on message to this mailer */ 243 int m_linelimit; /* max # characters per line */ 244 char *m_execdir; /* directory to chdir to before execv */ 245 uid_t m_uid; /* UID to run as */ 246 gid_t m_gid; /* GID to run as */ 247 char *m_defcharset; /* default character set */ 248 }; 249 250 /* bits for m_flags */ 251 # define M_ESMTP 'a' /* run Extended SMTP protocol */ 252 # define M_ALIASABLE 'A' /* user can be LHS of an alias */ 253 # define M_BLANKEND 'b' /* ensure blank line at end of message */ 254 # define M_NOCOMMENT 'c' /* don't include comment part of address */ 255 # define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 256 # define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 257 /* 'D' CF: include Date: */ 258 # define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 259 # define M_ESCFROM 'E' /* escape From lines to >From */ 260 # define M_FOPT 'f' /* mailer takes picky -f flag */ 261 /* 'F' CF: include From: or Resent-From: */ 262 # define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 263 # define M_HST_UPPER 'h' /* preserve host case distinction */ 264 # define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 265 # define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 266 # define M_INTERNAL 'I' /* SMTP to another sendmail site */ 267 # define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 268 # define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 269 # define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 270 # define M_LOCALMAILER 'l' /* delivery is to this host */ 271 # define M_LIMITS 'L' /* must enforce SMTP line limits */ 272 # define M_MUSER 'm' /* can handle multiple users at once */ 273 /* 'M' CF: include Message-Id: */ 274 # define M_NHDR 'n' /* don't insert From line */ 275 # define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 276 # define M_RUNASRCPT 'o' /* always run mailer as recipient */ 277 # define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 278 /* 'P' CF: include Return-Path: */ 279 # define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 280 # define M_ROPT 'r' /* mailer takes picky -r flag */ 281 # define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 282 # define M_STRIPQ 's' /* strip quote chars from user/host */ 283 # define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 284 # define M_USR_UPPER 'u' /* preserve user case distinction */ 285 # define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 286 # define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 287 /* 'V' UIUC: !-relativize all addresses */ 288 # define M_HASPWENT 'w' /* check for /etc/passwd entry */ 289 /* 'x' CF: include Full-Name: */ 290 # define M_XDOT 'X' /* use hidden-dot algorithm */ 291 # define M_LMTP 'z' /* run Local Mail Transport Protocol */ 292 # define M_NOMX '0' /* turn off MX lookups */ 293 # define M_NONULLS '1' /* don't send null bytes */ 294 # define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 295 # define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 296 # define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 297 # define M_7BITS '7' /* use 7-bit path */ 298 # define M_8BITS '8' /* force "just send 8" behaviour */ 299 # define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 300 # define M_CHECKINCLUDE ':' /* check for :include: files */ 301 # define M_CHECKPROG '|' /* check for |program addresses */ 302 # define M_CHECKFILE '/' /* check for /file addresses */ 303 # define M_CHECKUDB '@' /* user can be user database key */ 304 # define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 305 306 EXTERN MAILER *Mailer[MAXMAILERS+1]; 307 308 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 309 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 310 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 311 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 312 /* 313 ** Information about currently open connections to mailers, or to 314 ** hosts that we have looked up recently. 315 */ 316 317 # define MCI struct mailer_con_info 318 319 MCI 320 { 321 short mci_flags; /* flag bits, see below */ 322 short mci_errno; /* error number on last connection */ 323 short mci_herrno; /* h_errno from last DNS lookup */ 324 short mci_exitstat; /* exit status from last connection */ 325 short mci_state; /* SMTP state */ 326 off_t mci_contentlen; /* body length for Content-Length: */ 327 long mci_maxsize; /* max size this server will accept */ 328 FILE *mci_in; /* input side of connection */ 329 FILE *mci_out; /* output side of connection */ 330 pid_t mci_pid; /* process id of subordinate proc */ 331 char *mci_phase; /* SMTP phase string */ 332 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 333 char *mci_host; /* host name */ 334 char *mci_status; /* DSN status to be copied to addrs */ 335 char *mci_rstatus; /* SMTP status to be copied to addrs */ 336 time_t mci_lastuse; /* last usage time */ 337 FILE *mci_statfile; /* long term status file */ 338 }; 339 340 341 /* flag bits */ 342 #define MCIF_VALID 0x0001 /* this entry is valid */ 343 #define MCIF_TEMP 0x0002 /* don't cache this connection */ 344 #define MCIF_CACHED 0x0004 /* currently in open cache */ 345 #define MCIF_ESMTP 0x0008 /* this host speaks ESMTP */ 346 #define MCIF_EXPN 0x0010 /* EXPN command supported */ 347 #define MCIF_SIZE 0x0020 /* SIZE option supported */ 348 #define MCIF_8BITMIME 0x0040 /* BODY=8BITMIME supported */ 349 #define MCIF_7BIT 0x0080 /* strip this message to 7 bits */ 350 #define MCIF_MULTSTAT 0x0100 /* MAIL11V3: handles MULT status */ 351 #define MCIF_INHEADER 0x0200 /* currently outputing header */ 352 #define MCIF_CVT8TO7 0x0400 /* convert from 8 to 7 bits */ 353 #define MCIF_DSN 0x0800 /* DSN extension supported */ 354 #define MCIF_8BITOK 0x1000 /* OK to send 8 bit characters */ 355 #define MCIF_CVT7TO8 0x2000 /* convert from 7 to 8 bits */ 356 #define MCIF_INMIME 0x4000 /* currently reading MIME header */ 357 358 /* states */ 359 #define MCIS_CLOSED 0 /* no traffic on this connection */ 360 #define MCIS_OPENING 1 /* sending initial protocol */ 361 #define MCIS_OPEN 2 /* open, initial protocol sent */ 362 #define MCIS_ACTIVE 3 /* message being sent */ 363 #define MCIS_QUITING 4 /* running quit protocol */ 364 #define MCIS_SSD 5 /* service shutting down */ 365 #define MCIS_ERROR 6 /* I/O error on connection */ 366 367 /* functions */ 368 extern MCI *mci_get __P((char *, MAILER *)); 369 extern void mci_cache __P((MCI *)); 370 extern void mci_flush __P((bool, MCI *)); 371 extern void mci_dump __P((MCI *, bool)); 372 extern void mci_dump_all __P((bool)); 373 extern MCI **mci_scan __P((MCI *)); 374 extern int mci_traverse_persistent __P((int (*)(), char *)); 375 extern int mci_print_persistent __P((char *, char *)); 376 extern int mci_purge_persistent __P((char *, char *)); 377 extern int mci_lock_host __P((MCI *)); 378 extern void mci_unlock_host __P((MCI *)); 379 extern int mci_lock_host_statfile __P((MCI *)); 380 extern void mci_store_persistent __P((MCI *)); 381 extern int mci_read_persistent __P((FILE *, MCI *)); 382 /* 383 ** Header structure. 384 ** This structure is used internally to store header items. 385 */ 386 387 struct header 388 { 389 char *h_field; /* the name of the field */ 390 char *h_value; /* the value of that field */ 391 struct header *h_link; /* the next header */ 392 u_short h_flags; /* status bits, see below */ 393 BITMAP h_mflags; /* m_flags bits needed */ 394 }; 395 396 typedef struct header HDR; 397 398 /* 399 ** Header information structure. 400 ** Defined in conf.c, this struct declares the header fields 401 ** that have some magic meaning. 402 */ 403 404 struct hdrinfo 405 { 406 char *hi_field; /* the name of the field */ 407 u_short hi_flags; /* status bits, see below */ 408 char *hi_ruleset; /* validity check ruleset */ 409 }; 410 411 extern struct hdrinfo HdrInfo[]; 412 413 /* bits for h_flags and hi_flags */ 414 # define H_EOH 0x0001 /* this field terminates header */ 415 # define H_RCPT 0x0002 /* contains recipient addresses */ 416 # define H_DEFAULT 0x0004 /* if another value is found, drop this */ 417 # define H_RESENT 0x0008 /* this address is a "Resent-..." address */ 418 # define H_CHECK 0x0010 /* check h_mflags against m_flags */ 419 # define H_ACHECK 0x0020 /* ditto, but always (not just default) */ 420 # define H_FORCE 0x0040 /* force this field, even if default */ 421 # define H_TRACE 0x0080 /* this field contains trace information */ 422 # define H_FROM 0x0100 /* this is a from-type field */ 423 # define H_VALID 0x0200 /* this field has a validated value */ 424 # define H_RECEIPTTO 0x0400 /* this field has return receipt info */ 425 # define H_ERRORSTO 0x0800 /* this field has error address info */ 426 # define H_CTE 0x1000 /* this field is a content-transfer-encoding */ 427 # define H_CTYPE 0x2000 /* this is a content-type field */ 428 # define H_BCC 0x4000 /* Bcc: header: strip value or delete */ 429 # define H_ENCODABLE 0x8000 /* field can be RFC 1522 encoded */ 430 431 /* functions */ 432 extern void addheader __P((char *, char *, HDR **)); 433 extern char *hvalue __P((char *, HDR *)); 434 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 435 extern void put_vanilla_header __P((HDR *, char *, MCI *)); 436 extern void eatheader __P((ENVELOPE *, bool)); 437 extern int chompheader __P((char *, bool, HDR **, ENVELOPE *)); 438 /* 439 ** Envelope structure. 440 ** This structure defines the message itself. There is usually 441 ** only one of these -- for the message that we originally read 442 ** and which is our primary interest -- but other envelopes can 443 ** be generated during processing. For example, error messages 444 ** will have their own envelope. 445 */ 446 447 struct envelope 448 { 449 HDR *e_header; /* head of header list */ 450 long e_msgpriority; /* adjusted priority of this message */ 451 time_t e_ctime; /* time message appeared in the queue */ 452 char *e_to; /* the target person */ 453 ADDRESS e_from; /* the person it is from */ 454 char *e_sender; /* e_from.q_paddr w comments stripped */ 455 char **e_fromdomain; /* the domain part of the sender */ 456 ADDRESS *e_sendqueue; /* list of message recipients */ 457 ADDRESS *e_errorqueue; /* the queue for error responses */ 458 long e_msgsize; /* size of the message in bytes */ 459 long e_flags; /* flags, see below */ 460 int e_nrcpts; /* number of recipients */ 461 short e_class; /* msg class (priority, junk, etc.) */ 462 short e_hopcount; /* number of times processed */ 463 short e_nsent; /* number of sends since checkpoint */ 464 short e_sendmode; /* message send mode */ 465 short e_errormode; /* error return mode */ 466 short e_timeoutclass; /* message timeout class */ 467 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *)); 468 /* function to put header of message */ 469 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 470 /* function to put body of message */ 471 struct envelope *e_parent; /* the message this one encloses */ 472 struct envelope *e_sibling; /* the next envelope of interest */ 473 char *e_bodytype; /* type of message body */ 474 FILE *e_dfp; /* temporary file */ 475 char *e_id; /* code for this entry in queue */ 476 FILE *e_xfp; /* transcript file */ 477 FILE *e_lockfp; /* the lock file for this message */ 478 char *e_message; /* error message */ 479 char *e_statmsg; /* stat msg (changes per delivery) */ 480 char *e_msgboundary; /* MIME-style message part boundary */ 481 char *e_origrcpt; /* original recipient (one only) */ 482 char *e_envid; /* envelope id from MAIL FROM: line */ 483 char *e_status; /* DSN status for this message */ 484 time_t e_dtime; /* time of last delivery attempt */ 485 int e_ntries; /* number of delivery attempts */ 486 dev_t e_dfdev; /* df file's device, for crash recov */ 487 ino_t e_dfino; /* df file's ino, for crash recovery */ 488 char *e_macro[256]; /* macro definitions */ 489 }; 490 491 /* values for e_flags */ 492 #define EF_OLDSTYLE 0x0000001 /* use spaces (not commas) in hdrs */ 493 #define EF_INQUEUE 0x0000002 /* this message is fully queued */ 494 #define EF_NO_BODY_RETN 0x0000004 /* omit message body on error */ 495 #define EF_CLRQUEUE 0x0000008 /* disk copy is no longer needed */ 496 #define EF_SENDRECEIPT 0x0000010 /* send a return receipt */ 497 #define EF_FATALERRS 0x0000020 /* fatal errors occured */ 498 #define EF_DELETE_BCC 0x0000040 /* delete Bcc: headers entirely */ 499 #define EF_RESPONSE 0x0000080 /* this is an error or return receipt */ 500 #define EF_RESENT 0x0000100 /* this message is being forwarded */ 501 #define EF_VRFYONLY 0x0000200 /* verify only (don't expand aliases) */ 502 #define EF_WARNING 0x0000400 /* warning message has been sent */ 503 #define EF_QUEUERUN 0x0000800 /* this envelope is from queue */ 504 #define EF_GLOBALERRS 0x0001000 /* treat errors as global */ 505 #define EF_PM_NOTIFY 0x0002000 /* send return mail to postmaster */ 506 #define EF_METOO 0x0004000 /* send to me too */ 507 #define EF_LOGSENDER 0x0008000 /* need to log the sender */ 508 #define EF_NORECEIPT 0x0010000 /* suppress all return-receipts */ 509 #define EF_HAS8BIT 0x0020000 /* at least one 8-bit char in body */ 510 #define EF_NL_NOT_EOL 0x0040000 /* don't accept raw NL as EOLine */ 511 #define EF_CRLF_NOT_EOL 0x0080000 /* don't accept CR-LF as EOLine */ 512 #define EF_RET_PARAM 0x0100000 /* RCPT command had RET argument */ 513 #define EF_HAS_DF 0x0200000 /* set when df file is instantiated */ 514 #define EF_IS_MIME 0x0400000 /* really is a MIME message */ 515 #define EF_DONT_MIME 0x0800000 /* never MIME this message */ 516 #define EF_DISCARD 0x1000000 /* discard the message */ 517 518 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 519 520 /* functions */ 521 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *)); 522 extern void dropenvelope __P((ENVELOPE *, bool)); 523 extern void clearenvelope __P((ENVELOPE *, bool)); 524 525 extern void putheader __P((MCI *, HDR *, ENVELOPE *)); 526 extern void putbody __P((MCI *, ENVELOPE *, char *)); 527 /* 528 ** Message priority classes. 529 ** 530 ** The message class is read directly from the Priority: header 531 ** field in the message. 532 ** 533 ** CurEnv->e_msgpriority is the number of bytes in the message plus 534 ** the creation time (so that jobs ``tend'' to be ordered correctly), 535 ** adjusted by the message class, the number of recipients, and the 536 ** amount of time the message has been sitting around. This number 537 ** is used to order the queue. Higher values mean LOWER priority. 538 ** 539 ** Each priority class point is worth WkClassFact priority points; 540 ** each recipient is worth WkRecipFact priority points. Each time 541 ** we reprocess a message the priority is adjusted by WkTimeFact. 542 ** WkTimeFact should normally decrease the priority so that jobs 543 ** that have historically failed will be run later; thanks go to 544 ** Jay Lepreau at Utah for pointing out the error in my thinking. 545 ** 546 ** The "class" is this number, unadjusted by the age or size of 547 ** this message. Classes with negative representations will have 548 ** error messages thrown away if they are not local. 549 */ 550 551 struct priority 552 { 553 char *pri_name; /* external name of priority */ 554 int pri_val; /* internal value for same */ 555 }; 556 557 EXTERN struct priority Priorities[MAXPRIORITIES]; 558 EXTERN int NumPriorities; /* pointer into Priorities */ 559 /* 560 ** Rewrite rules. 561 */ 562 563 struct rewrite 564 { 565 char **r_lhs; /* pattern match */ 566 char **r_rhs; /* substitution value */ 567 struct rewrite *r_next;/* next in chain */ 568 }; 569 570 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 571 572 /* 573 ** Special characters in rewriting rules. 574 ** These are used internally only. 575 ** The COND* rules are actually used in macros rather than in 576 ** rewriting rules, but are given here because they 577 ** cannot conflict. 578 */ 579 580 /* left hand side items */ 581 # define MATCHZANY ((u_char)0220) /* match zero or more tokens */ 582 # define MATCHANY ((u_char)0221) /* match one or more tokens */ 583 # define MATCHONE ((u_char)0222) /* match exactly one token */ 584 # define MATCHCLASS ((u_char)0223) /* match one token in a class */ 585 # define MATCHNCLASS ((u_char)0224) /* match anything not in class */ 586 # define MATCHREPL ((u_char)0225) /* replacement on RHS for above */ 587 588 /* right hand side items */ 589 # define CANONNET ((u_char)0226) /* canonical net, next token */ 590 # define CANONHOST ((u_char)0227) /* canonical host, next token */ 591 # define CANONUSER ((u_char)0230) /* canonical user, next N tokens */ 592 # define CALLSUBR ((u_char)0231) /* call another rewriting set */ 593 594 /* conditionals in macros */ 595 # define CONDIF ((u_char)0232) /* conditional if-then */ 596 # define CONDELSE ((u_char)0233) /* conditional else */ 597 # define CONDFI ((u_char)0234) /* conditional fi */ 598 599 /* bracket characters for host name lookup */ 600 # define HOSTBEGIN ((u_char)0235) /* hostname lookup begin */ 601 # define HOSTEND ((u_char)0236) /* hostname lookup end */ 602 603 /* bracket characters for generalized lookup */ 604 # define LOOKUPBEGIN ((u_char)0205) /* generalized lookup begin */ 605 # define LOOKUPEND ((u_char)0206) /* generalized lookup end */ 606 607 /* macro substitution character */ 608 # define MACROEXPAND ((u_char)0201) /* macro expansion */ 609 # define MACRODEXPAND ((u_char)0202) /* deferred macro expansion */ 610 611 /* to make the code clearer */ 612 # define MATCHZERO CANONHOST 613 614 /* external <==> internal mapping table */ 615 struct metamac 616 { 617 char metaname; /* external code (after $) */ 618 u_char metaval; /* internal code (as above) */ 619 }; 620 621 /* values for macros with external names only */ 622 # define MID_OPMODE 0202 /* operation mode */ 623 624 /* functions */ 625 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 626 extern void define __P((int, char *, ENVELOPE *)); 627 extern char *macvalue __P((int, ENVELOPE *)); 628 extern char *macname __P((int)); 629 extern int macid __P((char *, char **)); 630 /* 631 ** Name canonification short circuit. 632 ** 633 ** If the name server for a host is down, the process of trying to 634 ** canonify the name can hang. This is similar to (but alas, not 635 ** identical to) looking up the name for delivery. This stab type 636 ** caches the result of the name server lookup so we don't hang 637 ** multiple times. 638 */ 639 640 #define NAMECANON struct _namecanon 641 642 NAMECANON 643 { 644 short nc_errno; /* cached errno */ 645 short nc_herrno; /* cached h_errno */ 646 short nc_stat; /* cached exit status code */ 647 short nc_flags; /* flag bits */ 648 char *nc_cname; /* the canonical name */ 649 }; 650 651 /* values for nc_flags */ 652 #define NCF_VALID 0x0001 /* entry valid */ 653 /* 654 ** Mapping functions 655 ** 656 ** These allow arbitrary mappings in the config file. The idea 657 ** (albeit not the implementation) comes from IDA sendmail. 658 */ 659 660 # define MAPCLASS struct _mapclass 661 # define MAP struct _map 662 # define MAXMAPACTIONS 3 /* size of map_actions array */ 663 664 665 /* 666 ** An actual map. 667 */ 668 669 MAP 670 { 671 MAPCLASS *map_class; /* the class of this map */ 672 char *map_mname; /* name of this map */ 673 long map_mflags; /* flags, see below */ 674 char *map_file; /* the (nominal) filename */ 675 ARBPTR_T map_db1; /* the open database ptr */ 676 ARBPTR_T map_db2; /* an "extra" database pointer */ 677 char *map_keycolnm; /* key column name */ 678 char *map_valcolnm; /* value column name */ 679 u_char map_keycolno; /* key column number */ 680 u_char map_valcolno; /* value column number */ 681 char map_coldelim; /* column delimiter */ 682 char *map_app; /* to append to successful matches */ 683 char *map_tapp; /* to append to "tempfail" matches */ 684 char *map_domain; /* the (nominal) NIS domain */ 685 char *map_rebuild; /* program to run to do auto-rebuild */ 686 time_t map_mtime; /* last database modification time */ 687 int map_lockfd; /* auxiliary lock file descriptor */ 688 short map_specificity; /* specificity of aliases */ 689 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 690 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 691 }; 692 693 /* bit values for map_mflags */ 694 # define MF_VALID 0x00000001 /* this entry is valid */ 695 # define MF_INCLNULL 0x00000002 /* include null byte in key */ 696 # define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 697 # define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 698 # define MF_MATCHONLY 0x00000010 /* don't use the map value */ 699 # define MF_OPEN 0x00000020 /* this entry is open */ 700 # define MF_WRITABLE 0x00000040 /* open for writing */ 701 # define MF_ALIAS 0x00000080 /* this is an alias file */ 702 # define MF_TRY0NULL 0x00000100 /* try with no null byte */ 703 # define MF_TRY1NULL 0x00000200 /* try with the null byte */ 704 # define MF_LOCKED 0x00000400 /* this map is currently locked */ 705 # define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 706 # define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 707 # define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 708 # define MF_UNSAFEDB 0x00004000 /* this map is world writable */ 709 # define MF_APPEND 0x00008000 /* append new entry on rebuiled */ 710 # define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 711 # define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 712 # define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 713 714 /* indices for map_actions */ 715 # define MA_NOTFOUND 0 /* member map returned "not found" */ 716 # define MA_UNAVAIL 1 /* member map is not available */ 717 # define MA_TRYAGAIN 2 /* member map returns temp failure */ 718 719 /* 720 ** The class of a map -- essentially the functions to call 721 */ 722 723 MAPCLASS 724 { 725 char *map_cname; /* name of this map class */ 726 char *map_ext; /* extension for database file */ 727 short map_cflags; /* flag bits, see below */ 728 bool (*map_parse)__P((MAP *, char *)); 729 /* argument parsing function */ 730 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 731 /* lookup function */ 732 void (*map_store)__P((MAP *, char *, char *)); 733 /* store function */ 734 bool (*map_open)__P((MAP *, int)); 735 /* open function */ 736 void (*map_close)__P((MAP *)); 737 /* close function */ 738 }; 739 740 /* bit values for map_cflags */ 741 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 742 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 743 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 744 #define MCF_OPTFILE 0x0008 /* file name is optional */ 745 746 /* functions */ 747 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 748 extern MAP *makemapentry __P((char *)); 749 extern void initmaps __P((bool, ENVELOPE *)); 750 /* 751 ** Symbol table definitions 752 */ 753 754 struct symtab 755 { 756 char *s_name; /* name to be entered */ 757 short s_type; /* general type (see below) */ 758 short s_len; /* length of this entry */ 759 struct symtab *s_next; /* pointer to next in chain */ 760 union 761 { 762 BITMAP sv_class; /* bit-map of word classes */ 763 ADDRESS *sv_addr; /* pointer to address header */ 764 MAILER *sv_mailer; /* pointer to mailer */ 765 char *sv_alias; /* alias */ 766 MAPCLASS sv_mapclass; /* mapping function class */ 767 MAP sv_map; /* mapping function */ 768 char *sv_hostsig; /* host signature */ 769 MCI sv_mci; /* mailer connection info */ 770 NAMECANON sv_namecanon; /* canonical name cache */ 771 int sv_macro; /* macro name => id mapping */ 772 int sv_ruleset; /* ruleset index */ 773 struct hdrinfo sv_header; /* header metainfo */ 774 char *sv_service[MAXMAPSTACK]; /* service switch */ 775 } s_value; 776 }; 777 778 typedef struct symtab STAB; 779 780 /* symbol types */ 781 # define ST_UNDEF 0 /* undefined type */ 782 # define ST_CLASS 1 /* class map */ 783 # define ST_ADDRESS 2 /* an address in parsed format */ 784 # define ST_MAILER 3 /* a mailer header */ 785 # define ST_ALIAS 4 /* an alias */ 786 # define ST_MAPCLASS 5 /* mapping function class */ 787 # define ST_MAP 6 /* mapping function */ 788 # define ST_HOSTSIG 7 /* host signature */ 789 # define ST_NAMECANON 8 /* cached canonical name */ 790 # define ST_MACRO 9 /* macro name to id mapping */ 791 # define ST_RULESET 10 /* ruleset index */ 792 # define ST_SERVICE 11 /* service switch entry */ 793 # define ST_HEADER 12 /* special header flags */ 794 # define ST_MCI 16 /* mailer connection info (offset) */ 795 796 # define s_class s_value.sv_class 797 # define s_address s_value.sv_addr 798 # define s_mailer s_value.sv_mailer 799 # define s_alias s_value.sv_alias 800 # define s_mci s_value.sv_mci 801 # define s_mapclass s_value.sv_mapclass 802 # define s_hostsig s_value.sv_hostsig 803 # define s_map s_value.sv_map 804 # define s_namecanon s_value.sv_namecanon 805 # define s_macro s_value.sv_macro 806 # define s_ruleset s_value.sv_ruleset 807 # define s_service s_value.sv_service 808 # define s_header s_value.sv_header 809 810 extern STAB *stab __P((char *, int, int)); 811 extern void stabapply __P((void (*)(STAB *, int), int)); 812 813 /* opcodes to stab */ 814 # define ST_FIND 0 /* find entry */ 815 # define ST_ENTER 1 /* enter if not there */ 816 /* 817 ** STRUCT EVENT -- event queue. 818 ** 819 ** Maintained in sorted order. 820 ** 821 ** We store the pid of the process that set this event to insure 822 ** that when we fork we will not take events intended for the parent. 823 */ 824 825 struct event 826 { 827 time_t ev_time; /* time of the function call */ 828 void (*ev_func)__P((int)); 829 /* function to call */ 830 int ev_arg; /* argument to ev_func */ 831 int ev_pid; /* pid that set this event */ 832 struct event *ev_link; /* link to next item */ 833 }; 834 835 typedef struct event EVENT; 836 837 EXTERN EVENT *EventQueue; /* head of event queue */ 838 839 /* functions */ 840 extern EVENT *setevent __P((time_t, void(*)(), int)); 841 extern void clrevent __P((EVENT *)); 842 /* 843 ** Operation, send, error, and MIME modes 844 ** 845 ** The operation mode describes the basic operation of sendmail. 846 ** This can be set from the command line, and is "send mail" by 847 ** default. 848 ** 849 ** The send mode tells how to send mail. It can be set in the 850 ** configuration file. It's setting determines how quickly the 851 ** mail will be delivered versus the load on your system. If the 852 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 853 ** mode. 854 ** 855 ** The error mode tells how to return errors. 856 */ 857 858 EXTERN char OpMode; /* operation mode, see below */ 859 860 #define MD_DELIVER 'm' /* be a mail sender */ 861 #define MD_SMTP 's' /* run SMTP on standard input */ 862 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 863 #define MD_DAEMON 'd' /* run as a daemon */ 864 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 865 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 866 #define MD_TEST 't' /* test mode: resolve addrs only */ 867 #define MD_INITALIAS 'i' /* initialize alias database */ 868 #define MD_PRINT 'p' /* print the queue */ 869 #define MD_FREEZE 'z' /* freeze the configuration file */ 870 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 871 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 872 873 /* values for e_sendmode -- send modes */ 874 #define SM_DELIVER 'i' /* interactive delivery */ 875 #define SM_FORK 'b' /* deliver in background */ 876 #define SM_QUEUE 'q' /* queue, don't deliver */ 877 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 878 #define SM_VERIFY 'v' /* verify only (used internally) */ 879 880 /* used only as a parameter to sendall */ 881 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 882 883 884 /* values for e_errormode -- error handling modes */ 885 #define EM_PRINT 'p' /* print errors */ 886 #define EM_MAIL 'm' /* mail back errors */ 887 #define EM_WRITE 'w' /* write back errors */ 888 #define EM_BERKNET 'e' /* special berknet processing */ 889 #define EM_QUIET 'q' /* don't print messages (stat only) */ 890 891 892 /* MIME processing mode */ 893 EXTERN int MimeMode; 894 895 /* bit values for MimeMode */ 896 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 897 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 898 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 899 900 /* queue sorting order algorithm */ 901 EXTERN int QueueSortOrder; 902 903 #define QS_BYPRIORITY 0 /* sort by message priority */ 904 #define QS_BYHOST 1 /* sort by first host name */ 905 #define QS_BYTIME 2 /* sort by submission time */ 906 907 908 /* how to handle messages without any recipient addresses */ 909 EXTERN int NoRecipientAction; 910 911 #define NRA_NO_ACTION 0 /* just leave it as is */ 912 #define NRA_ADD_TO 1 /* add To: header */ 913 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 914 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 915 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 916 917 918 /* flags to putxline */ 919 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 920 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 921 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 922 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 923 /* 924 ** Additional definitions 925 */ 926 927 928 /* 929 ** Privacy flags 930 ** These are bit values for the PrivacyFlags word. 931 */ 932 933 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 934 #define PRIV_NEEDMAILHELO 0x0001 /* insist on HELO for MAIL, at least */ 935 #define PRIV_NEEDEXPNHELO 0x0002 /* insist on HELO for EXPN */ 936 #define PRIV_NEEDVRFYHELO 0x0004 /* insist on HELO for VRFY */ 937 #define PRIV_NOEXPN 0x0008 /* disallow EXPN command entirely */ 938 #define PRIV_NOVRFY 0x0010 /* disallow VRFY command entirely */ 939 #define PRIV_AUTHWARNINGS 0x0020 /* flag possible authorization probs */ 940 #define PRIV_NORECEIPTS 0x0040 /* disallow return receipts */ 941 #define PRIV_NOETRN 0x0080 /* disallow ETRN command entirely */ 942 #define PRIV_NOVERB 0x0100 /* disallow VERB command entirely */ 943 #define PRIV_RESTRICTMAILQ 0x1000 /* restrict mailq command */ 944 #define PRIV_RESTRICTQRUN 0x2000 /* restrict queue run */ 945 #define PRIV_GOAWAY 0x0fff /* don't give no info, anyway, anyhow */ 946 947 /* struct defining such things */ 948 struct prival 949 { 950 char *pv_name; /* name of privacy flag */ 951 int pv_flag; /* numeric level */ 952 }; 953 954 955 /* 956 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 957 */ 958 959 #define RF_SENDERADDR 0x001 /* this is a sender address */ 960 #define RF_HEADERADDR 0x002 /* this is a header address */ 961 #define RF_CANONICAL 0x004 /* strip comment information */ 962 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 963 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 964 #define RF_COPYPADDR 0x020 /* copy print address */ 965 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 966 #define RF_COPYNONE 0 967 968 969 /* 970 ** Flags passed to safefile/safedirpath. 971 */ 972 973 #define SFF_ANYFILE 0 /* no special restrictions */ 974 #define SFF_MUSTOWN 0x0001 /* user must own this file */ 975 #define SFF_NOSLINK 0x0002 /* file cannot be a symbolic link */ 976 #define SFF_ROOTOK 0x0004 /* ok for root to own this file */ 977 #define SFF_RUNASREALUID 0x0008 /* if no ctladdr, run as real uid */ 978 #define SFF_NOPATHCHECK 0x0010 /* don't bother checking dir path */ 979 #define SFF_SETUIDOK 0x0020 /* setuid files are ok */ 980 #define SFF_CREAT 0x0040 /* ok to create file if necessary */ 981 #define SFF_REGONLY 0x0080 /* regular files only */ 982 #define SFF_SAFEDIRPATH 0x0100 /* no writable directories allowed */ 983 #define SFF_NOHLINK 0x0200 /* file cannot have hard links */ 984 #define SFF_NOWLINK 0x0400 /* links only in non-writable dirs */ 985 #define SFF_NOGWFILES 0x0800 /* disallow world writable files */ 986 #define SFF_NOWWFILES 0x1000 /* disallow group writable files */ 987 988 /* flags that are actually specific to safeopen/safefopen/dfopen */ 989 #define SFF_OPENASROOT 0x2000 /* open as root instead of real user */ 990 #define SFF_NOLOCK 0x4000 /* don't lock the file */ 991 992 /* pseudo-flags */ 993 #define SFF_NOLINK (SFF_NOHLINK|SFF_NOSLINK) 994 995 /* functions */ 996 extern int safefile __P((char *, UID_T, GID_T, char *, int, int, struct stat *)); 997 extern int safedirpath __P((char *, UID_T, GID_T, char *, int)); 998 extern int safeopen __P((char *, int, int, int)); 999 extern FILE *safefopen __P((char *, int, int, int)); 1000 extern int dfopen __P((char *, int, int, int)); 1001 extern bool filechanged __P((char *, int, struct stat *)); 1002 1003 1004 /* 1005 ** Flags passed to mime8to7. 1006 */ 1007 1008 #define M87F_OUTER 0 /* outer context */ 1009 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1010 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1011 1012 1013 /* 1014 ** Flags passed to returntosender. 1015 */ 1016 1017 #define RTSF_NO_BODY 0 /* send headers only */ 1018 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1019 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1020 1021 1022 /* 1023 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1024 ** we are forced to declare a supertype here. 1025 */ 1026 1027 # if NETINET || NETUNIX || NETISO || NETNS || NETX25 1028 union bigsockaddr 1029 { 1030 struct sockaddr sa; /* general version */ 1031 #if NETUNIX 1032 struct sockaddr_un sunix; /* UNIX family */ 1033 #endif 1034 #if NETINET 1035 struct sockaddr_in sin; /* INET family */ 1036 #endif 1037 #if NETISO 1038 struct sockaddr_iso siso; /* ISO family */ 1039 #endif 1040 #if NETNS 1041 struct sockaddr_ns sns; /* XNS family */ 1042 #endif 1043 #if NETX25 1044 struct sockaddr_x25 sx25; /* X.25 family */ 1045 #endif 1046 }; 1047 1048 #define SOCKADDR union bigsockaddr 1049 1050 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 1051 1052 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1053 extern char *anynet_ntoa __P((SOCKADDR *)); 1054 # if DAEMON 1055 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1056 # endif 1057 1058 #endif 1059 1060 1061 /* 1062 ** Vendor codes 1063 ** 1064 ** Vendors can customize sendmail to add special behaviour, 1065 ** generally for back compatibility. Ideally, this should 1066 ** be set up in the .cf file using the "V" command. However, 1067 ** it's quite reasonable for some vendors to want the default 1068 ** be their old version; this can be set using 1069 ** -DVENDOR_DEFAULT=VENDOR_xxx 1070 ** in the Makefile. 1071 ** 1072 ** Vendors should apply to sendmail@CS.Berkeley.EDU for 1073 ** unique vendor codes. 1074 */ 1075 1076 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1077 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1078 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1079 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1080 1081 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 1082 1083 /* prototypes for vendor-specific hook routines */ 1084 extern void vendor_set_uid __P((UID_T)); 1085 extern void vendor_daemon_setup __P((ENVELOPE *)); 1086 1087 /* 1088 ** DontBlameSendmail options 1089 ** 1090 ** Hopefully nobody uses these. 1091 */ 1092 #define DBS_SAFE 0 1093 #define DBS_ASSUMESAFECHOWN 0x00000001 1094 #define DBS_GROUPWRITABLEDIRPATHSAFE 0x00000002 1095 #define DBS_GROUPWRITABLEFORWARDFILESAFE 0x00000004 1096 #define DBS_GROUPWRITABLEINCLUDEFILESAFE 0x00000008 1097 #define DBS_GROUPWRITABLEALIASFILE 0x00000010 1098 #define DBS_WORLDWRITABLEALIASFILE 0x00000020 1099 #define DBS_FORWARDFILEINUNSAFEDIRPATH 0x00000040 1100 #define DBS_INCLUDEFILEINUNSAFEDIRPATH 0x00000060 1101 #define DBS_MAPINUNSAFEDIRPATH 0x00000080 1102 #define DBS_LINKEDALIASFILEINWRITABLEDIR 0x00000100 1103 #define DBS_LINKEDCLASSFILEINWRITABLEDIR 0x00000200 1104 #define DBS_LINKEDFORWARDFILEINWRITABLEDIR 0x00000400 1105 #define DBS_LINKEDINCLUDEFILEINWRITABLEDIR 0x00000800 1106 #define DBS_LINKEDMAPINWRITABLEDIR 0x00001000 1107 #define DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR 0x00002000 1108 #define DBS_FILEDELIVERYTOHARDLINK 0x00004000 1109 #define DBS_FILEDELIVERYTOSYMLINK 0x00008000 1110 #define DBS_WRITEMAPTOHARDLINK 0x00010000 1111 #define DBS_WRITEMAPTOSYMLINK 0x00020000 1112 #define DBS_WRITESTATSTOHARDLINK 0x00040000 1113 #define DBS_WRITESTATSTOSYMLINK 0x00080000 1114 #define DBS_FORWARDFILEINGROUPWRITABLEDIRPATH 0x00100000 1115 #define DBS_INCLUDEFILEINGROUPWRITABLEDIRPATH 0x00200000 1116 #define DBS_CLASSFILEINUNSAFEDIRPATH 0x00400000 1117 #define DBS_ERRORHEADERINUNSAFEDIRPATH 0x00800000 1118 #define DBS_HELPFILEINUNSAFEDIRPATH 0x01000000 1119 #define DBS_FORWARDFILEINUNSAFEDIRPATHSAFE 0x02000000 1120 #define DBS_INCLUDEFILEINUNSAFEDIRPATHSAFE 0x04000000 1121 #define DBS_RUNPROGRAMINUNSAFEDIRPATH 0x08000000 1122 #define DBS_RUNWRITABLEPROGRAM 0x10000000 1123 1124 /* struct defining such things */ 1125 struct dbsval 1126 { 1127 char *dbs_name; /* name of DontBlameSendmail flag */ 1128 long dbs_flag; /* numeric level */ 1129 }; 1130 1131 EXTERN long DontBlameSendmail; /* DontBlameSendmail option bits */ 1132 1133 /* 1134 ** Terminal escape codes. 1135 ** 1136 ** To make debugging output clearer. 1137 */ 1138 1139 struct termescape 1140 { 1141 char *te_rv_on; /* turn reverse-video on */ 1142 char *te_rv_off; /* turn reverse-video off */ 1143 }; 1144 1145 EXTERN struct termescape TermEscape; 1146 1147 1148 /* 1149 ** Error return from inet_addr(3), in case not defined in /usr/include. 1150 */ 1151 1152 #ifndef INADDR_NONE 1153 # define INADDR_NONE 0xffffffff 1154 #endif 1155 /* 1156 ** Global variables. 1157 */ 1158 1159 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 1160 EXTERN bool MeToo; /* send to the sender also */ 1161 EXTERN bool IgnrDot; /* don't let dot end messages */ 1162 EXTERN bool SaveFrom; /* save leading "From" lines */ 1163 EXTERN bool GrabTo; /* if set, get recipients from msg */ 1164 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 1165 EXTERN bool HoldErrs; /* only output errors to transcript */ 1166 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 1167 EXTERN bool SuperSafe; /* be extra careful, even if expensive */ 1168 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 1169 EXTERN bool AutoRebuild; /* auto-rebuild the alias database as needed */ 1170 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 1171 EXTERN bool NoAlias; /* suppress aliasing */ 1172 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 1173 EXTERN bool UseHesiod; /* using Hesiod -- interpret Hesiod errors */ 1174 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 1175 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 1176 EXTERN bool ConfigFileRead; /* configuration file has been read */ 1177 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 1178 EXTERN FILE *InChannel; /* input connection */ 1179 EXTERN FILE *OutChannel; /* output connection */ 1180 EXTERN char *RealUserName; /* real user name of caller */ 1181 EXTERN uid_t RealUid; /* real uid of caller */ 1182 EXTERN gid_t RealGid; /* real gid of caller */ 1183 EXTERN uid_t DefUid; /* default uid to run as */ 1184 EXTERN gid_t DefGid; /* default gid to run as */ 1185 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 1186 EXTERN uid_t TrustedFileUid; /* uid of trusted owner of files and dirs */ 1187 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 1188 EXTERN int Verbose; /* set if blow-by-blow desired */ 1189 EXTERN int Errors; /* set if errors (local to single pass) */ 1190 EXTERN int ExitStat; /* exit status code */ 1191 EXTERN int LineNumber; /* line number in current input */ 1192 EXTERN int LogLevel; /* level of logging to perform */ 1193 EXTERN int FileMode; /* mode on files */ 1194 EXTERN int QueueLA; /* load average starting forced queueing */ 1195 EXTERN int RefuseLA; /* load average refusing connections are */ 1196 EXTERN int CurrentLA; /* current load average */ 1197 EXTERN long QueueFactor; /* slope of queue function */ 1198 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1199 EXTERN char *HelpFile; /* location of SMTP help file */ 1200 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 1201 EXTERN char *StatFile; /* location of statistics summary */ 1202 EXTERN char *QueueDir; /* location of queue directory */ 1203 EXTERN char *FileName; /* name to print on error messages */ 1204 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 1205 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 1206 EXTERN char *RealHostName; /* name of host we are talking to */ 1207 EXTERN char *CurHostName; /* current host we are dealing with */ 1208 EXTERN jmp_buf TopFrame; /* branch-to-top-of-loop-on-error frame */ 1209 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 1210 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 1211 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 1212 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 1213 EXTERN bool MatchGecos; /* look for user names in gecos field */ 1214 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 1215 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 1216 EXTERN bool InChild; /* true if running in an SMTP subprocess */ 1217 EXTERN bool DisConnected; /* running with OutChannel redirected to xf */ 1218 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 1219 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 1220 EXTERN char SpaceSub; /* substitution for <lwsp> */ 1221 EXTERN int PrivacyFlags; /* privacy flags */ 1222 EXTERN char *ConfFile; /* location of configuration file [conf.c] */ 1223 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 1224 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 1225 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 1226 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 1227 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 1228 EXTERN char *UdbSpec; /* user database source spec */ 1229 EXTERN int MaxHopCount; /* max # of hops until bounce */ 1230 EXTERN int ConfigLevel; /* config file level */ 1231 EXTERN char *TimeZoneSpec; /* override time zone specification */ 1232 EXTERN char *ForwardPath; /* path to search for .forward files */ 1233 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 1234 EXTERN char *FallBackMX; /* fall back MX host */ 1235 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 1236 EXTERN time_t MinQueueAge; /* min delivery interval */ 1237 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 1238 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 1239 EXTERN char *HostsFile; /* path to /etc/hosts file */ 1240 EXTERN char *HostStatDir; /* location of host status information */ 1241 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1242 EXTERN int MaxChildren; /* maximum number of daemonic children */ 1243 EXTERN int CurChildren; /* current number of daemonic children */ 1244 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 1245 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 1246 EXTERN char *OperatorChars; /* operators (old $o macro) */ 1247 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 1248 EXTERN int DefaultNotify; /* default DSN notification flags */ 1249 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 1250 EXTERN bool UserSubmission; /* initial (user) mail submission */ 1251 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 1252 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 1253 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 1254 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 1255 EXTERN bool DoQueueRun; /* non-interrupt time queue run needed */ 1256 EXTERN u_long ConnectOnlyTo; /* override connection address (for testing) */ 1257 #if _FFR_DSN_RRT_OPTION 1258 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 1259 #endif 1260 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 1261 EXTERN bool DontProbeInterfaces; /* don't probe interfaces for names */ 1262 EXTERN bool ChownAlwaysSafe; /* treat chown(2) as safe */ 1263 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 1264 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 1265 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 1266 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 1267 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 1268 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 1269 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 1270 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 1271 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 1272 EXTERN char *ServiceSwitchFile; /* backup service switch */ 1273 EXTERN char *DefaultCharSet; /* default character set for MIME */ 1274 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 1275 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 1276 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 1277 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 1278 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 1279 EXTERN time_t ServiceCacheTime; /* time service switch was cached */ 1280 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 1281 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 1282 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 1283 EXTERN FILE *TrafficLogFile; /* file in which to log all traffic */ 1284 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 1285 EXTERN char **ExternalEnviron; /* input environment */ 1286 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 1287 /* saved user environment */ 1288 extern int errno; 1289 1290 /* 1291 ** Queue Run Limitations 1292 */ 1293 struct queue_char 1294 { 1295 char *queue_match; /* string to match */ 1296 struct queue_char *queue_next; 1297 }; 1298 1299 typedef struct queue_char QUEUE_CHAR; 1300 1301 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue runs to this recipient */ 1302 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue runs to this sender */ 1303 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue runs to this id */ 1304 1305 /* 1306 ** Timeouts 1307 ** 1308 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1309 */ 1310 1311 EXTERN struct 1312 { 1313 /* RFC 1123-specified timeouts [minimum value] */ 1314 time_t to_initial; /* initial greeting timeout [5m] */ 1315 time_t to_mail; /* MAIL command [5m] */ 1316 time_t to_rcpt; /* RCPT command [5m] */ 1317 time_t to_datainit; /* DATA initiation [2m] */ 1318 time_t to_datablock; /* DATA block [3m] */ 1319 time_t to_datafinal; /* DATA completion [10m] */ 1320 time_t to_nextcommand; /* next command [5m] */ 1321 /* following timeouts are not mentioned in RFC 1123 */ 1322 time_t to_iconnect; /* initial connection timeout (first try) */ 1323 time_t to_connect; /* initial connection timeout (later tries) */ 1324 time_t to_rset; /* RSET command */ 1325 time_t to_helo; /* HELO command */ 1326 time_t to_quit; /* QUIT command */ 1327 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 1328 time_t to_ident; /* IDENT protocol requests */ 1329 time_t to_fileopen; /* opening :include: and .forward files */ 1330 /* following are per message */ 1331 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 1332 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 1333 } TimeOuts; 1334 1335 /* timeout classes for return and warning timeouts */ 1336 # define TOC_NORMAL 0 /* normal delivery */ 1337 # define TOC_URGENT 1 /* urgent delivery */ 1338 # define TOC_NONURGENT 2 /* non-urgent delivery */ 1339 1340 1341 /* 1342 ** Trace information 1343 */ 1344 1345 /* trace vector and macros for debugging flags */ 1346 EXTERN u_char tTdvect[100]; 1347 # define tTd(flag, level) (tTdvect[flag] >= level) 1348 # define tTdlevel(flag) (tTdvect[flag]) 1349 /* 1350 ** Miscellaneous information. 1351 */ 1352 1353 1354 /* 1355 ** The "no queue id" queue id for sm_syslog 1356 */ 1357 1358 #define NOQID "*~*" 1359 1360 1361 /* 1362 ** Some in-line functions 1363 */ 1364 1365 /* set exit status */ 1366 #define setstat(s) { \ 1367 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 1368 ExitStat = s; \ 1369 } 1370 1371 /* make a copy of a string */ 1372 #define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 1373 1374 #define STRUCTCOPY(s, d) d = s 1375 1376 1377 1378 /* 1379 ** Declarations of useful functions 1380 */ 1381 1382 extern char *xalloc __P((int)); 1383 extern char *sfgets __P((char *, int, FILE *, time_t, char *)); 1384 extern char *queuename __P((ENVELOPE *, int)); 1385 extern time_t curtime __P((void)); 1386 extern bool transienterror __P((int)); 1387 extern char *fgetfolded __P((char *, int, FILE *)); 1388 extern char *username __P((void)); 1389 extern char *pintvl __P((time_t, bool)); 1390 extern bool shouldqueue __P((long, time_t)); 1391 extern bool lockfile __P((int, char *, char *, int)); 1392 extern char *hostsignature __P((MAILER *, char *, ENVELOPE *)); 1393 extern void openxscript __P((ENVELOPE *)); 1394 extern void closexscript __P((ENVELOPE *)); 1395 extern char *shortenstring __P((const char *, int)); 1396 extern bool usershellok __P((char *, char *)); 1397 extern char *defcharset __P((ENVELOPE *)); 1398 extern bool wordinclass __P((char *, int)); 1399 extern char *denlstring __P((char *, bool, bool)); 1400 extern void makelower __P((char *)); 1401 extern bool rebuildaliases __P((MAP *, bool)); 1402 extern void readaliases __P((MAP *, FILE *, bool, bool)); 1403 extern void finis __P((void)); 1404 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 1405 extern void xputs __P((const char *)); 1406 extern void logsender __P((ENVELOPE *, char *)); 1407 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 1408 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 1409 extern void setuserenv __P((const char *, const char *)); 1410 extern char *getextenv __P((const char *)); 1411 extern void disconnect __P((int, ENVELOPE *)); 1412 extern void putxline __P((char *, size_t, MCI *, int)); 1413 extern void dumpfd __P((int, bool, bool)); 1414 extern void makemailer __P((char *)); 1415 extern void putfromline __P((MCI *, ENVELOPE *)); 1416 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 1417 extern void setclass __P((int, char *)); 1418 extern void inittimeouts __P((char *)); 1419 extern void logdelivery __P((MAILER *, MCI *, const char *, ADDRESS *, time_t, ENVELOPE *)); 1420 extern void giveresponse __P((int, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *)); 1421 extern void buildfname __P((char *, char *, char *, int)); 1422 extern void mci_setstat __P((MCI *, int, char *, char *)); 1423 extern char *smtptodsn __P((int)); 1424 extern int rscheck __P((char *, char *, char *, ENVELOPE *e)); 1425 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1426 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1427 extern void xfclose __P((FILE *, char *, char *)); 1428 extern int switch_map_find __P((char *, char *[], short [])); 1429 extern void shorten_hostname __P((char [])); 1430 extern int waitfor __P((pid_t)); 1431 extern void proc_list_add __P((pid_t)); 1432 extern void proc_list_drop __P((pid_t)); 1433 extern void proc_list_clear __P((void)); 1434 extern void buffer_errors __P((void)); 1435 extern void flush_errors __P((bool)); 1436 extern void putline __P((char *, MCI *)); 1437 extern bool xtextok __P((char *)); 1438 extern char *xtextify __P((char *, char *)); 1439 extern char *xuntextify __P((char *)); 1440 extern void cleanstrcpy __P((char *, char *, int)); 1441 extern int getmxrr __P((char *, char **, bool, int *)); 1442 extern int strtorwset __P((char *, char **, int)); 1443 extern void printav __P((char **)); 1444 extern void printopenfds __P((bool)); 1445 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 1446 extern void fixcrlf __P((char *, bool)); 1447 extern int dofork __P((void)); 1448 extern void initsys __P((ENVELOPE *)); 1449 extern void collect __P((FILE *, bool, HDR **, ENVELOPE *)); 1450 extern void stripquotes __P((char *)); 1451 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1452 extern void unlockqueue __P((ENVELOPE *)); 1453 extern void xunlink __P((char *)); 1454 extern bool runqueue __P((bool, bool)); 1455 extern int getla __P((void)); 1456 extern void sendall __P((ENVELOPE *, int)); 1457 extern void queueup __P((ENVELOPE *, bool)); 1458 extern void checkfds __P((char *)); 1459 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1460 extern void markstats __P((ENVELOPE *, ADDRESS *, bool)); 1461 extern void poststats __P((char *)); 1462 extern char *arpadate __P((char *)); 1463 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile int, ENVELOPE *)); 1464 extern void loseqfile __P((ENVELOPE *, char *)); 1465 extern int prog_open __P((char **, int *, ENVELOPE *)); 1466 extern bool getcanonname __P((char *, int, bool)); 1467 extern bool path_is_dir __P((char *, bool)); 1468 extern pid_t dowork __P((char *, bool, bool, ENVELOPE *)); 1469 extern int drop_privileges __P((bool)); 1470 extern void fill_fd __P((int, char *)); 1471 1472 extern const char *errstring __P((int)); 1473 extern sigfunc_t setsignal __P((int, sigfunc_t)); 1474 extern int blocksignal __P((int)); 1475 extern int releasesignal __P((int)); 1476 extern struct hostent *sm_gethostbyname __P((char *)); 1477 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 1478 extern struct passwd *sm_getpwnam __P((char *)); 1479 extern struct passwd *sm_getpwuid __P((UID_T)); 1480 extern struct passwd *finduser __P((char *, bool *)); 1481 1482 #ifdef XDEBUG 1483 extern void checkfdopen __P((int, char *)); 1484 extern void checkfd012 __P((char *)); 1485 #endif 1486 1487 /* ellipsis is a different case though */ 1488 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 1489 extern void syserr __P((const char *, ...)); 1490 extern void usrerr __P((const char *, ...)); 1491 extern void message __P((const char *, ...)); 1492 extern void nmessage __P((const char *, ...)); 1493 extern void setproctitle __P((const char *, ...)); 1494 extern void sm_syslog __P((int, const char *, const char *, ...)); 1495 1496 #if !HASSNPRINTF 1497 extern int snprintf __P((char *, size_t, const char *, ...)); 1498 extern int vsnprintf __P((char *, size_t, const char *, va_list)); 1499 #endif 1500 extern char *quad_to_string __P((QUAD_T)); 1501