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Diffstat (limited to 'contrib/sendmail/src/parseaddr.c')
| -rw-r--r-- | contrib/sendmail/src/parseaddr.c | 3360 |
1 files changed, 0 insertions, 3360 deletions
diff --git a/contrib/sendmail/src/parseaddr.c b/contrib/sendmail/src/parseaddr.c deleted file mode 100644 index eca60f9..0000000 --- a/contrib/sendmail/src/parseaddr.c +++ /dev/null @@ -1,3360 +0,0 @@ -/* - * Copyright (c) 1998-2006 Sendmail, Inc. and its suppliers. - * All rights reserved. - * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - */ - -#include <sendmail.h> - -SM_RCSID("@(#)$Id: parseaddr.c,v 8.401 2007/09/27 23:33:59 ca Exp $") - -#include <sm/sendmail.h> -#include "map.h" - -static void allocaddr __P((ADDRESS *, int, char *, ENVELOPE *)); -static int callsubr __P((char**, int, ENVELOPE *)); -static char *map_lookup __P((STAB *, char *, char **, int *, ENVELOPE *)); -static ADDRESS *buildaddr __P((char **, ADDRESS *, int, ENVELOPE *)); -static bool hasctrlchar __P((register char *, bool, bool)); - -/* replacement for illegal characters in addresses */ -#define BAD_CHAR_REPLACEMENT '?' - -/* -** PARSEADDR -- Parse an address -** -** Parses an address and breaks it up into three parts: a -** net to transmit the message on, the host to transmit it -** to, and a user on that host. These are loaded into an -** ADDRESS header with the values squirreled away if necessary. -** The "user" part may not be a real user; the process may -** just reoccur on that machine. For example, on a machine -** with an arpanet connection, the address -** csvax.bill@berkeley -** will break up to a "user" of 'csvax.bill' and a host -** of 'berkeley' -- to be transmitted over the arpanet. -** -** Parameters: -** addr -- the address to parse. -** a -- a pointer to the address descriptor buffer. -** If NULL, an address will be created. -** flags -- describe detail for parsing. See RF_ definitions -** in sendmail.h. -** delim -- the character to terminate the address, passed -** to prescan. -** delimptr -- if non-NULL, set to the location of the -** delim character that was found. -** e -- the envelope that will contain this address. -** isrcpt -- true if the address denotes a recipient; false -** indicates a sender. -** -** Returns: -** A pointer to the address descriptor header (`a' if -** `a' is non-NULL). -** NULL on error. -** -** Side Effects: -** e->e_to = addr -*/ - -/* following delimiters are inherent to the internal algorithms */ -#define DELIMCHARS "()<>,;\r\n" /* default word delimiters */ - -ADDRESS * -parseaddr(addr, a, flags, delim, delimptr, e, isrcpt) - char *addr; - register ADDRESS *a; - int flags; - int delim; - char **delimptr; - register ENVELOPE *e; - bool isrcpt; -{ - char **pvp; - auto char *delimptrbuf; - bool qup; - char pvpbuf[PSBUFSIZE]; - - /* - ** Initialize and prescan address. - */ - - e->e_to = addr; - if (tTd(20, 1)) - sm_dprintf("\n--parseaddr(%s)\n", addr); - - if (delimptr == NULL) - delimptr = &delimptrbuf; - - pvp = prescan(addr, delim, pvpbuf, sizeof(pvpbuf), delimptr, - ExtTokenTab, false); - if (pvp == NULL) - { - if (tTd(20, 1)) - sm_dprintf("parseaddr-->NULL\n"); - return NULL; - } - - if (invalidaddr(addr, delim == '\0' ? NULL : *delimptr, isrcpt)) - { - if (tTd(20, 1)) - sm_dprintf("parseaddr-->bad address\n"); - return NULL; - } - - /* - ** Save addr if we are going to have to. - ** - ** We have to do this early because there is a chance that - ** the map lookups in the rewriting rules could clobber - ** static memory somewhere. - */ - - if (bitset(RF_COPYPADDR, flags) && addr != NULL) - { - char savec = **delimptr; - - if (savec != '\0') - **delimptr = '\0'; - e->e_to = addr = sm_rpool_strdup_x(e->e_rpool, addr); - if (savec != '\0') - **delimptr = savec; - } - - /* - ** Apply rewriting rules. - ** Ruleset 0 does basic parsing. It must resolve. - */ - - qup = false; - if (REWRITE(pvp, 3, e) == EX_TEMPFAIL) - qup = true; - if (REWRITE(pvp, 0, e) == EX_TEMPFAIL) - qup = true; - - /* - ** Build canonical address from pvp. - */ - - a = buildaddr(pvp, a, flags, e); - - if (hasctrlchar(a->q_user, isrcpt, true)) - { - if (tTd(20, 1)) - sm_dprintf("parseaddr-->bad q_user\n"); - - /* - ** Just mark the address as bad so DSNs work. - ** hasctrlchar() has to make sure that the address - ** has been sanitized, e.g., shortened. - */ - - a->q_state = QS_BADADDR; - } - - /* - ** Make local copies of the host & user and then - ** transport them out. - */ - - allocaddr(a, flags, addr, e); - if (QS_IS_BADADDR(a->q_state)) - { - /* weed out bad characters in the printable address too */ - (void) hasctrlchar(a->q_paddr, isrcpt, false); - return a; - } - - /* - ** Select a queue directory for recipient addresses. - ** This is done here and in split_across_queue_groups(), - ** but the latter applies to addresses after aliasing, - ** and only if splitting is done. - */ - - if ((a->q_qgrp == NOAQGRP || a->q_qgrp == ENVQGRP) && - !bitset(RF_SENDERADDR|RF_HEADERADDR|RF_RM_ADDR, flags) && - OpMode != MD_INITALIAS) - { - int r; - - /* call ruleset which should return a queue group name */ - r = rscap(RS_QUEUEGROUP, a->q_user, NULL, e, &pvp, pvpbuf, - sizeof(pvpbuf)); - if (r == EX_OK && - pvp != NULL && pvp[0] != NULL && - (pvp[0][0] & 0377) == CANONNET && - pvp[1] != NULL && pvp[1][0] != '\0') - { - r = name2qid(pvp[1]); - if (r == NOQGRP && LogLevel > 10) - sm_syslog(LOG_INFO, NOQID, - "can't find queue group name %s, selection ignored", - pvp[1]); - if (tTd(20, 4) && r != NOQGRP) - sm_syslog(LOG_INFO, NOQID, - "queue group name %s -> %d", - pvp[1], r); - a->q_qgrp = r == NOQGRP ? ENVQGRP : r; - } - } - - /* - ** If there was a parsing failure, mark it for queueing. - */ - - if (qup && OpMode != MD_INITALIAS) - { - char *msg = "Transient parse error -- message queued for future delivery"; - - if (e->e_sendmode == SM_DEFER) - msg = "Deferring message until queue run"; - if (tTd(20, 1)) - sm_dprintf("parseaddr: queueing message\n"); - message(msg); - if (e->e_message == NULL && e->e_sendmode != SM_DEFER) - e->e_message = sm_rpool_strdup_x(e->e_rpool, msg); - a->q_state = QS_QUEUEUP; - a->q_status = "4.4.3"; - } - - /* - ** Compute return value. - */ - - if (tTd(20, 1)) - { - sm_dprintf("parseaddr-->"); - printaddr(sm_debug_file(), a, false); - } - - return a; -} -/* -** INVALIDADDR -- check for address containing characters used for macros -** -** Parameters: -** addr -- the address to check. -** delimptr -- if non-NULL: end of address to check, i.e., -** a pointer in the address string. -** isrcpt -- true iff the address is for a recipient. -** -** Returns: -** true -- if the address has characters that are reservered -** for macros or is too long. -** false -- otherwise. -*/ - -bool -invalidaddr(addr, delimptr, isrcpt) - register char *addr; - char *delimptr; - bool isrcpt; -{ - bool result = false; - char savedelim = '\0'; - char *b = addr; - int len = 0; - - if (delimptr != NULL) - { - /* delimptr points to the end of the address to test */ - savedelim = *delimptr; - if (savedelim != '\0') /* if that isn't '\0' already: */ - *delimptr = '\0'; /* set it */ - } - for (; *addr != '\0'; addr++) - { - if (!EightBitAddrOK && (*addr & 0340) == 0200) - { - setstat(EX_USAGE); - result = true; - *addr = BAD_CHAR_REPLACEMENT; - } - if (++len > MAXNAME - 1) - { - char saved = *addr; - - *addr = '\0'; - usrerr("553 5.1.0 Address \"%s\" too long (%d bytes max)", - b, MAXNAME - 1); - *addr = saved; - result = true; - goto delim; - } - } - if (result) - { - if (isrcpt) - usrerr("501 5.1.3 8-bit character in mailbox address \"%s\"", - b); - else - usrerr("501 5.1.7 8-bit character in mailbox address \"%s\"", - b); - } -delim: - if (delimptr != NULL && savedelim != '\0') - *delimptr = savedelim; /* restore old character at delimptr */ - return result; -} -/* -** HASCTRLCHAR -- check for address containing meta-characters -** -** Checks that the address contains no meta-characters, and contains -** no "non-printable" characters unless they are quoted or escaped. -** Quoted or escaped characters are literals. -** -** Parameters: -** addr -- the address to check. -** isrcpt -- true if the address is for a recipient; false -** indicates a from. -** complain -- true if an error should issued if the address -** is invalid and should be "repaired". -** -** Returns: -** true -- if the address has any "wierd" characters or -** non-printable characters or if a quote is unbalanced. -** false -- otherwise. -*/ - -static bool -hasctrlchar(addr, isrcpt, complain) - register char *addr; - bool isrcpt, complain; -{ - bool quoted = false; - int len = 0; - char *result = NULL; - char *b = addr; - - if (addr == NULL) - return false; - for (; *addr != '\0'; addr++) - { - if (++len > MAXNAME - 1) - { - if (complain) - { - (void) shorten_rfc822_string(b, MAXNAME - 1); - usrerr("553 5.1.0 Address \"%s\" too long (%d bytes max)", - b, MAXNAME - 1); - return true; - } - result = "too long"; - } - if (!EightBitAddrOK && !quoted && (*addr < 32 || *addr == 127)) - { - result = "non-printable character"; - *addr = BAD_CHAR_REPLACEMENT; - continue; - } - if (*addr == '"') - quoted = !quoted; - else if (*addr == '\\') - { - /* XXX Generic problem: no '\0' in strings. */ - if (*++addr == '\0') - { - result = "trailing \\ character"; - *--addr = BAD_CHAR_REPLACEMENT; - break; - } - } - if (!EightBitAddrOK && (*addr & 0340) == 0200) - { - setstat(EX_USAGE); - result = "8-bit character"; - *addr = BAD_CHAR_REPLACEMENT; - continue; - } - } - if (quoted) - result = "unbalanced quote"; /* unbalanced quote */ - if (result != NULL && complain) - { - if (isrcpt) - usrerr("501 5.1.3 Syntax error in mailbox address \"%s\" (%s)", - b, result); - else - usrerr("501 5.1.7 Syntax error in mailbox address \"%s\" (%s)", - b, result); - } - return result != NULL; -} -/* -** ALLOCADDR -- do local allocations of address on demand. -** -** Also lowercases the host name if requested. -** -** Parameters: -** a -- the address to reallocate. -** flags -- the copy flag (see RF_ definitions in sendmail.h -** for a description). -** paddr -- the printname of the address. -** e -- envelope -** -** Returns: -** none. -** -** Side Effects: -** Copies portions of a into local buffers as requested. -*/ - -static void -allocaddr(a, flags, paddr, e) - register ADDRESS *a; - int flags; - char *paddr; - ENVELOPE *e; -{ - if (tTd(24, 4)) - sm_dprintf("allocaddr(flags=%x, paddr=%s)\n", flags, paddr); - - a->q_paddr = paddr; - - if (a->q_user == NULL) - a->q_user = ""; - if (a->q_host == NULL) - a->q_host = ""; - - if (bitset(RF_COPYPARSE, flags)) - { - a->q_host = sm_rpool_strdup_x(e->e_rpool, a->q_host); - if (a->q_user != a->q_paddr) - a->q_user = sm_rpool_strdup_x(e->e_rpool, a->q_user); - } - - if (a->q_paddr == NULL) - a->q_paddr = sm_rpool_strdup_x(e->e_rpool, a->q_user); - a->q_qgrp = NOAQGRP; -} - -/* -** PRESCAN -- Prescan name and make it canonical -** -** Scans a name and turns it into a set of tokens. This process -** deletes blanks and comments (in parentheses) (if the token type -** for left paren is SPC). -** -** This routine knows about quoted strings and angle brackets. -** -** There are certain subtleties to this routine. The one that -** comes to mind now is that backslashes on the ends of names -** are silently stripped off; this is intentional. The problem -** is that some versions of sndmsg (like at LBL) set the kill -** character to something other than @ when reading addresses; -** so people type "csvax.eric\@berkeley" -- which screws up the -** berknet mailer. -** -** Parameters: -** addr -- the name to chomp. -** delim -- the delimiter for the address, normally -** '\0' or ','; \0 is accepted in any case. -** If '\t' then we are reading the .cf file. -** pvpbuf -- place to put the saved text -- note that -** the pointers are static. -** pvpbsize -- size of pvpbuf. -** delimptr -- if non-NULL, set to the location of the -** terminating delimiter. -** toktab -- if set, a token table to use for parsing. -** If NULL, use the default table. -** ignore -- if true, ignore unbalanced addresses -** -** Returns: -** A pointer to a vector of tokens. -** NULL on error. -*/ - -/* states and character types */ -#define OPR 0 /* operator */ -#define ATM 1 /* atom */ -#define QST 2 /* in quoted string */ -#define SPC 3 /* chewing up spaces */ -#define ONE 4 /* pick up one character */ -#define ILL 5 /* illegal character */ - -#define NSTATES 6 /* number of states */ -#define TYPE 017 /* mask to select state type */ - -/* meta bits for table */ -#define M 020 /* meta character; don't pass through */ -#define B 040 /* cause a break */ -#define MB M|B /* meta-break */ - -static short StateTab[NSTATES][NSTATES] = -{ - /* oldst chtype> OPR ATM QST SPC ONE ILL */ - /*OPR*/ { OPR|B, ATM|B, QST|B, SPC|MB, ONE|B, ILL|MB }, - /*ATM*/ { OPR|B, ATM, QST|B, SPC|MB, ONE|B, ILL|MB }, - /*QST*/ { QST, QST, OPR, QST, QST, QST }, - /*SPC*/ { OPR, ATM, QST, SPC|M, ONE, ILL|MB }, - /*ONE*/ { OPR, OPR, OPR, OPR, OPR, ILL|MB }, - /*ILL*/ { OPR|B, ATM|B, QST|B, SPC|MB, ONE|B, ILL|M } -}; - -/* these all get modified with the OperatorChars */ - -/* token type table for external strings */ -unsigned char ExtTokenTab[256] = -{ - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,SPC,SPC,SPC,SPC,SPC,ATM,ATM, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* sp ! " # $ % & ' ( ) * + , - . / */ - SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, SPC,SPC,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* sp ! " # $ % & ' ( ) * + , - . / */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM -}; - -/* token type table for internal strings */ -unsigned char IntTokenTab[256] = -{ - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,SPC,SPC,SPC,SPC,SPC,ATM,ATM, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* sp ! " # $ % & ' ( ) * + , - . / */ - SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, SPC,SPC,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - OPR,OPR,ONE,OPR,OPR,OPR,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - OPR,OPR,OPR,ONE,ONE,ONE,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, - /* sp ! " # $ % & ' ( ) * + , - . / */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ONE -}; - -/* token type table for MIME parsing */ -unsigned char MimeTokenTab[256] = -{ - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,SPC,SPC,SPC,SPC,SPC,ILL,ILL, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* sp ! " # $ % & ' ( ) * + , - . / */ - SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, SPC,SPC,ATM,ATM,OPR,ATM,ATM,OPR, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,OPR,OPR,OPR,OPR,OPR,OPR, - /* @ A B C D E F G H I J K L M N O */ - OPR,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,OPR,OPR,OPR,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* sp ! " # $ % & ' ( ) * + , - . / */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* @ A B C D E F G H I J K L M N O */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* ` a b c d e f g h i j k l m n o */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, - /* p q r s t u v w x y z { | } ~ del */ - ILL,ILL,ILL,ILL,ILL,ILL,ILL,ILL, ILL,ILL,ILL,ILL,ILL,ILL,ILL,ONE -}; - -/* token type table: don't strip comments */ -unsigned char TokTypeNoC[256] = -{ - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,SPC,SPC,SPC,SPC,SPC,ATM,ATM, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* sp ! " # $ % & ' ( ) * + , - . / */ - SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM, OPR,OPR,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - - /* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */ - OPR,OPR,ONE,OPR,OPR,OPR,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, - /* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */ - OPR,OPR,OPR,ONE,ONE,ONE,OPR,OPR, OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, - /* sp ! " # $ % & ' ( ) * + , - . / */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* @ A B C D E F G H I J K L M N O */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* P Q R S T U V W X Y Z [ \ ] ^ _ */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* ` a b c d e f g h i j k l m n o */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, - /* p q r s t u v w x y z { | } ~ del */ - ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, ATM,ATM,ATM,ATM,ATM,ATM,ATM,ONE -}; - - -#define NOCHAR (-1) /* signal nothing in lookahead token */ - -char ** -prescan(addr, delim, pvpbuf, pvpbsize, delimptr, toktab, ignore) - char *addr; - int delim; - char pvpbuf[]; - int pvpbsize; - char **delimptr; - unsigned char *toktab; - bool ignore; -{ - register char *p; - register char *q; - register int c; - char **avp; - bool bslashmode; - bool route_syntax; - int cmntcnt; - int anglecnt; - char *tok; - int state; - int newstate; - char *saveto = CurEnv->e_to; - static char *av[MAXATOM + 1]; - static bool firsttime = true; - - if (firsttime) - { - /* initialize the token type table */ - char obuf[50]; - - firsttime = false; - if (OperatorChars == NULL) - { - if (ConfigLevel < 7) - OperatorChars = macvalue('o', CurEnv); - if (OperatorChars == NULL) - OperatorChars = ".:@[]"; - } - expand(OperatorChars, obuf, sizeof(obuf) - sizeof(DELIMCHARS), - CurEnv); - (void) sm_strlcat(obuf, DELIMCHARS, sizeof(obuf)); - for (p = obuf; *p != '\0'; p++) - { - if (IntTokenTab[*p & 0xff] == ATM) - IntTokenTab[*p & 0xff] = OPR; - if (ExtTokenTab[*p & 0xff] == ATM) - ExtTokenTab[*p & 0xff] = OPR; - if (TokTypeNoC[*p & 0xff] == ATM) - TokTypeNoC[*p & 0xff] = OPR; - } - } - if (toktab == NULL) - toktab = ExtTokenTab; - - /* make sure error messages don't have garbage on them */ - errno = 0; - - q = pvpbuf; - bslashmode = false; - route_syntax = false; - cmntcnt = 0; - anglecnt = 0; - avp = av; - state = ATM; - c = NOCHAR; - p = addr; - CurEnv->e_to = p; - if (tTd(22, 11)) - { - sm_dprintf("prescan: "); - xputs(sm_debug_file(), p); - sm_dprintf("\n"); - } - - do - { - /* read a token */ - tok = q; - for (;;) - { - /* store away any old lookahead character */ - if (c != NOCHAR && !bslashmode) - { - /* see if there is room */ - if (q >= &pvpbuf[pvpbsize - 5]) - { - addrtoolong: - usrerr("553 5.1.1 Address too long"); - if (strlen(addr) > MAXNAME) - addr[MAXNAME] = '\0'; - returnnull: - if (delimptr != NULL) - { - if (p > addr) - --p; - *delimptr = p; - } - CurEnv->e_to = saveto; - return NULL; - } - - /* squirrel it away */ -#if !ALLOW_255 - if ((char) c == (char) -1 && !tTd(82, 101) && - !EightBitAddrOK) - c &= 0x7f; -#endif /* !ALLOW_255 */ - *q++ = c; - } - - /* read a new input character */ - c = (*p++) & 0x00ff; - if (c == '\0') - { - /* diagnose and patch up bad syntax */ - if (ignore) - break; - else if (state == QST) - { - usrerr("553 Unbalanced '\"'"); - c = '"'; - } - else if (cmntcnt > 0) - { - usrerr("553 Unbalanced '('"); - c = ')'; - } - else if (anglecnt > 0) - { - c = '>'; - usrerr("553 Unbalanced '<'"); - } - else - break; - - p--; - } - else if (c == delim && cmntcnt <= 0 && state != QST) - { - if (anglecnt <= 0) - break; - - /* special case for better error management */ - if (delim == ',' && !route_syntax && !ignore) - { - usrerr("553 Unbalanced '<'"); - c = '>'; - p--; - } - } - - if (tTd(22, 101)) - sm_dprintf("c=%c, s=%d; ", c, state); - - /* chew up special characters */ - *q = '\0'; - if (bslashmode) - { - bslashmode = false; - - /* kludge \! for naive users */ - if (cmntcnt > 0) - { - c = NOCHAR; - continue; - } - else if (c != '!' || state == QST) - { - /* see if there is room */ - if (q >= &pvpbuf[pvpbsize - 5]) - goto addrtoolong; - *q++ = '\\'; - continue; - } - } - - if (c == '\\') - { - bslashmode = true; - } - else if (state == QST) - { - /* EMPTY */ - /* do nothing, just avoid next clauses */ - } - else if (c == '(' && toktab['('] == SPC) - { - cmntcnt++; - c = NOCHAR; - } - else if (c == ')' && toktab['('] == SPC) - { - if (cmntcnt <= 0) - { - if (!ignore) - { - usrerr("553 Unbalanced ')'"); - c = NOCHAR; - } - } - else - cmntcnt--; - } - else if (cmntcnt > 0) - { - c = NOCHAR; - } - else if (c == '<') - { - char *ptr = p; - - anglecnt++; - while (isascii(*ptr) && isspace(*ptr)) - ptr++; - if (*ptr == '@') - route_syntax = true; - } - else if (c == '>') - { - if (anglecnt <= 0) - { - if (!ignore) - { - usrerr("553 Unbalanced '>'"); - c = NOCHAR; - } - } - else - anglecnt--; - route_syntax = false; - } - else if (delim == ' ' && isascii(c) && isspace(c)) - c = ' '; - - if (c == NOCHAR) - continue; - - /* see if this is end of input */ - if (c == delim && anglecnt <= 0 && state != QST) - break; - - newstate = StateTab[state][toktab[c & 0xff]]; - if (tTd(22, 101)) - sm_dprintf("ns=%02o\n", newstate); - state = newstate & TYPE; - if (state == ILL) - { - if (isascii(c) && isprint(c)) - usrerr("553 Illegal character %c", c); - else - usrerr("553 Illegal character 0x%02x", - c & 0x0ff); - } - if (bitset(M, newstate)) - c = NOCHAR; - if (bitset(B, newstate)) - break; - } - - /* new token */ - if (tok != q) - { - /* see if there is room */ - if (q >= &pvpbuf[pvpbsize - 5]) - goto addrtoolong; - *q++ = '\0'; - if (tTd(22, 36)) - { - sm_dprintf("tok="); - xputs(sm_debug_file(), tok); - sm_dprintf("\n"); - } - if (avp >= &av[MAXATOM]) - { - usrerr("553 5.1.0 prescan: too many tokens"); - goto returnnull; - } - if (q - tok > MAXNAME) - { - usrerr("553 5.1.0 prescan: token too long"); - goto returnnull; - } - *avp++ = tok; - } - } while (c != '\0' && (c != delim || anglecnt > 0)); - *avp = NULL; - if (delimptr != NULL) - { - if (p > addr) - p--; - *delimptr = p; - } - if (tTd(22, 12)) - { - sm_dprintf("prescan==>"); - printav(sm_debug_file(), av); - } - CurEnv->e_to = saveto; - if (av[0] == NULL) - { - if (tTd(22, 1)) - sm_dprintf("prescan: null leading token\n"); - return NULL; - } - return av; -} -/* -** REWRITE -- apply rewrite rules to token vector. -** -** This routine is an ordered production system. Each rewrite -** rule has a LHS (called the pattern) and a RHS (called the -** rewrite); 'rwr' points the the current rewrite rule. -** -** For each rewrite rule, 'avp' points the address vector we -** are trying to match against, and 'pvp' points to the pattern. -** If pvp points to a special match value (MATCHZANY, MATCHANY, -** MATCHONE, MATCHCLASS, MATCHNCLASS) then the address in avp -** matched is saved away in the match vector (pointed to by 'mvp'). -** -** When a match between avp & pvp does not match, we try to -** back out. If we back up over MATCHONE, MATCHCLASS, or MATCHNCLASS -** we must also back out the match in mvp. If we reach a -** MATCHANY or MATCHZANY we just extend the match and start -** over again. -** -** When we finally match, we rewrite the address vector -** and try over again. -** -** Parameters: -** pvp -- pointer to token vector. -** ruleset -- the ruleset to use for rewriting. -** reclevel -- recursion level (to catch loops). -** e -- the current envelope. -** maxatom -- maximum length of buffer (usually MAXATOM) -** -** Returns: -** A status code. If EX_TEMPFAIL, higher level code should -** attempt recovery. -** -** Side Effects: -** pvp is modified. -*/ - -struct match -{ - char **match_first; /* first token matched */ - char **match_last; /* last token matched */ - char **match_pattern; /* pointer to pattern */ -}; - -int -rewrite(pvp, ruleset, reclevel, e, maxatom) - char **pvp; - int ruleset; - int reclevel; - register ENVELOPE *e; - int maxatom; -{ - register char *ap; /* address pointer */ - register char *rp; /* rewrite pointer */ - register char *rulename; /* ruleset name */ - register char *prefix; - register char **avp; /* address vector pointer */ - register char **rvp; /* rewrite vector pointer */ - register struct match *mlp; /* cur ptr into mlist */ - register struct rewrite *rwr; /* pointer to current rewrite rule */ - int ruleno; /* current rule number */ - int rstat = EX_OK; /* return status */ - int loopcount; - struct match mlist[MAXMATCH]; /* stores match on LHS */ - char *npvp[MAXATOM + 1]; /* temporary space for rebuild */ - char buf[MAXLINE]; - char name[6]; - - /* - ** mlp will not exceed mlist[] because readcf enforces - ** the upper limit of entries when reading rulesets. - */ - - if (ruleset < 0 || ruleset >= MAXRWSETS) - { - syserr("554 5.3.5 rewrite: illegal ruleset number %d", ruleset); - return EX_CONFIG; - } - rulename = RuleSetNames[ruleset]; - if (rulename == NULL) - { - (void) sm_snprintf(name, sizeof(name), "%d", ruleset); - rulename = name; - } - if (OpMode == MD_TEST) - prefix = ""; - else - prefix = "rewrite: ruleset "; - if (OpMode == MD_TEST) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "%s%-16.16s input:", prefix, rulename); - printav(smioout, pvp); - } - else if (tTd(21, 1)) - { - sm_dprintf("%s%-16.16s input:", prefix, rulename); - printav(sm_debug_file(), pvp); - } - if (reclevel++ > MaxRuleRecursion) - { - syserr("rewrite: excessive recursion (max %d), ruleset %s", - MaxRuleRecursion, rulename); - return EX_CONFIG; - } - if (pvp == NULL) - return EX_USAGE; - if (maxatom <= 0) - return EX_USAGE; - - /* - ** Run through the list of rewrite rules, applying - ** any that match. - */ - - ruleno = 1; - loopcount = 0; - for (rwr = RewriteRules[ruleset]; rwr != NULL; ) - { - int status; - - /* if already canonical, quit now */ - if (pvp[0] != NULL && (pvp[0][0] & 0377) == CANONNET) - break; - - if (tTd(21, 12)) - { - if (tTd(21, 15)) - sm_dprintf("-----trying rule (line %d):", - rwr->r_line); - else - sm_dprintf("-----trying rule:"); - printav(sm_debug_file(), rwr->r_lhs); - } - - /* try to match on this rule */ - mlp = mlist; - rvp = rwr->r_lhs; - avp = pvp; - if (++loopcount > 100) - { - syserr("554 5.3.5 Infinite loop in ruleset %s, rule %d", - rulename, ruleno); - if (tTd(21, 1)) - { - sm_dprintf("workspace: "); - printav(sm_debug_file(), pvp); - } - break; - } - - while ((ap = *avp) != NULL || *rvp != NULL) - { - rp = *rvp; - if (tTd(21, 35)) - { - sm_dprintf("ADVANCE rp="); - xputs(sm_debug_file(), rp); - sm_dprintf(", ap="); - xputs(sm_debug_file(), ap); - sm_dprintf("\n"); - } - if (rp == NULL) - { - /* end-of-pattern before end-of-address */ - goto backup; - } - if (ap == NULL && - (rp[0] & 0377) != MATCHZANY && - (rp[0] & 0377) != MATCHZERO) - { - /* end-of-input with patterns left */ - goto backup; - } - - switch (rp[0] & 0377) - { - case MATCHCLASS: - /* match any phrase in a class */ - mlp->match_pattern = rvp; - mlp->match_first = avp; - extendclass: - ap = *avp; - if (ap == NULL) - goto backup; - mlp->match_last = avp++; - cataddr(mlp->match_first, mlp->match_last, - buf, sizeof(buf), '\0', true); - if (!wordinclass(buf, rp[1])) - { - if (tTd(21, 36)) - { - sm_dprintf("EXTEND rp="); - xputs(sm_debug_file(), rp); - sm_dprintf(", ap="); - xputs(sm_debug_file(), ap); - sm_dprintf("\n"); - } - goto extendclass; - } - if (tTd(21, 36)) - sm_dprintf("CLMATCH\n"); - mlp++; - break; - - case MATCHNCLASS: - /* match any token not in a class */ - if (wordinclass(ap, rp[1])) - goto backup; - - /* FALLTHROUGH */ - - case MATCHONE: - case MATCHANY: - /* match exactly one token */ - mlp->match_pattern = rvp; - mlp->match_first = avp; - mlp->match_last = avp++; - mlp++; - break; - - case MATCHZANY: - /* match zero or more tokens */ - mlp->match_pattern = rvp; - mlp->match_first = avp; - mlp->match_last = avp - 1; - mlp++; - break; - - case MATCHZERO: - /* match zero tokens */ - break; - - case MACRODEXPAND: - /* - ** Match against run-time macro. - ** This algorithm is broken for the - ** general case (no recursive macros, - ** improper tokenization) but should - ** work for the usual cases. - */ - - ap = macvalue(rp[1], e); - mlp->match_first = avp; - if (tTd(21, 2)) - sm_dprintf("rewrite: LHS $&{%s} => \"%s\"\n", - macname(rp[1]), - ap == NULL ? "(NULL)" : ap); - - if (ap == NULL) - break; - while (*ap != '\0') - { - if (*avp == NULL || - sm_strncasecmp(ap, *avp, - strlen(*avp)) != 0) - { - /* no match */ - avp = mlp->match_first; - goto backup; - } - ap += strlen(*avp++); - } - - /* match */ - break; - - default: - /* must have exact match */ - if (sm_strcasecmp(rp, ap)) - goto backup; - avp++; - break; - } - - /* successful match on this token */ - rvp++; - continue; - - backup: - /* match failed -- back up */ - while (--mlp >= mlist) - { - rvp = mlp->match_pattern; - rp = *rvp; - avp = mlp->match_last + 1; - ap = *avp; - - if (tTd(21, 36)) - { - sm_dprintf("BACKUP rp="); - xputs(sm_debug_file(), rp); - sm_dprintf(", ap="); - xputs(sm_debug_file(), ap); - sm_dprintf("\n"); - } - - if (ap == NULL) - { - /* run off the end -- back up again */ - continue; - } - - if ((rp[0] & 0377) == MATCHANY || - (rp[0] & 0377) == MATCHZANY) - { - /* extend binding and continue */ - mlp->match_last = avp++; - rvp++; - mlp++; - break; - } - if ((rp[0] & 0377) == MATCHCLASS) - { - /* extend binding and try again */ - mlp->match_last = avp; - goto extendclass; - } - } - - if (mlp < mlist) - { - /* total failure to match */ - break; - } - } - - /* - ** See if we successfully matched - */ - - if (mlp < mlist || *rvp != NULL) - { - if (tTd(21, 10)) - sm_dprintf("----- rule fails\n"); - rwr = rwr->r_next; - ruleno++; - loopcount = 0; - continue; - } - - rvp = rwr->r_rhs; - if (tTd(21, 12)) - { - sm_dprintf("-----rule matches:"); - printav(sm_debug_file(), rvp); - } - - rp = *rvp; - if (rp != NULL) - { - if ((rp[0] & 0377) == CANONUSER) - { - rvp++; - rwr = rwr->r_next; - ruleno++; - loopcount = 0; - } - else if ((rp[0] & 0377) == CANONHOST) - { - rvp++; - rwr = NULL; - } - } - - /* substitute */ - for (avp = npvp; *rvp != NULL; rvp++) - { - register struct match *m; - register char **pp; - - rp = *rvp; - if ((rp[0] & 0377) == MATCHREPL) - { - /* substitute from LHS */ - m = &mlist[rp[1] - '1']; - if (m < mlist || m >= mlp) - { - syserr("554 5.3.5 rewrite: ruleset %s: replacement $%c out of bounds", - rulename, rp[1]); - return EX_CONFIG; - } - if (tTd(21, 15)) - { - sm_dprintf("$%c:", rp[1]); - pp = m->match_first; - while (pp <= m->match_last) - { - sm_dprintf(" %p=\"", *pp); - sm_dflush(); - sm_dprintf("%s\"", *pp++); - } - sm_dprintf("\n"); - } - pp = m->match_first; - while (pp <= m->match_last) - { - if (avp >= &npvp[maxatom]) - goto toolong; - *avp++ = *pp++; - } - } - else - { - /* some sort of replacement */ - if (avp >= &npvp[maxatom]) - { - toolong: - syserr("554 5.3.0 rewrite: expansion too long"); - if (LogLevel > 9) - sm_syslog(LOG_ERR, e->e_id, - "rewrite: expansion too long, ruleset=%s, ruleno=%d", - rulename, ruleno); - return EX_DATAERR; - } - if ((rp[0] & 0377) != MACRODEXPAND) - { - /* vanilla replacement from RHS */ - *avp++ = rp; - } - else - { - /* $&{x} replacement */ - char *mval = macvalue(rp[1], e); - char **xpvp; - size_t trsize = 0; - static size_t pvpb1_size = 0; - static char **pvpb1 = NULL; - char pvpbuf[PSBUFSIZE]; - - if (tTd(21, 2)) - sm_dprintf("rewrite: RHS $&{%s} => \"%s\"\n", - macname(rp[1]), - mval == NULL ? "(NULL)" : mval); - if (mval == NULL || *mval == '\0') - continue; - - /* save the remainder of the input */ - for (xpvp = pvp; *xpvp != NULL; xpvp++) - trsize += sizeof(*xpvp); - if (trsize > pvpb1_size) - { - if (pvpb1 != NULL) - sm_free(pvpb1); - pvpb1 = (char **) - sm_pmalloc_x(trsize); - pvpb1_size = trsize; - } - - memmove((char *) pvpb1, - (char *) pvp, - trsize); - - /* scan the new replacement */ - xpvp = prescan(mval, '\0', pvpbuf, - sizeof(pvpbuf), NULL, - NULL, false); - if (xpvp == NULL) - { - /* prescan pre-printed error */ - return EX_DATAERR; - } - - /* insert it into the output stream */ - while (*xpvp != NULL) - { - if (tTd(21, 19)) - sm_dprintf(" ... %s\n", - *xpvp); - *avp++ = sm_rpool_strdup_x( - e->e_rpool, *xpvp); - if (avp >= &npvp[maxatom]) - goto toolong; - xpvp++; - } - if (tTd(21, 19)) - sm_dprintf(" ... DONE\n"); - - /* restore the old trailing input */ - memmove((char *) pvp, - (char *) pvpb1, - trsize); - } - } - } - *avp++ = NULL; - - /* - ** Check for any hostname/keyword lookups. - */ - - for (rvp = npvp; *rvp != NULL; rvp++) - { - char **hbrvp; - char **xpvp; - size_t trsize; - char *replac; - int endtoken; - STAB *map; - char *mapname; - char **key_rvp; - char **arg_rvp; - char **default_rvp; - char cbuf[MAXKEY]; - char *pvpb1[MAXATOM + 1]; - char *argvect[MAX_MAP_ARGS]; - char pvpbuf[PSBUFSIZE]; - char *nullpvp[1]; - - hbrvp = rvp; - if ((rvp[0][0] & 0377) == HOSTBEGIN) - { - endtoken = HOSTEND; - mapname = "host"; - } - else if ((rvp[0][0] & 0377) == LOOKUPBEGIN) - { - endtoken = LOOKUPEND; - mapname = *++rvp; - if (mapname == NULL) - { - syserr("554 5.3.0 rewrite: missing mapname"); - /* NOTREACHED */ - SM_ASSERT(0); - } - } - else - continue; - - /* - ** Got a hostname/keyword lookup. - ** - ** This could be optimized fairly easily. - */ - - map = stab(mapname, ST_MAP, ST_FIND); - if (map == NULL) - syserr("554 5.3.0 rewrite: map %s not found", - mapname); - - /* extract the match part */ - key_rvp = ++rvp; - if (key_rvp == NULL) - { - syserr("554 5.3.0 rewrite: missing key for map %s", - mapname); - /* NOTREACHED */ - SM_ASSERT(0); - } - default_rvp = NULL; - arg_rvp = argvect; - xpvp = NULL; - replac = pvpbuf; - while (*rvp != NULL && ((rvp[0][0] & 0377) != endtoken)) - { - int nodetype = rvp[0][0] & 0377; - - if (nodetype != CANONHOST && - nodetype != CANONUSER) - { - rvp++; - continue; - } - - *rvp++ = NULL; - - if (xpvp != NULL) - { - cataddr(xpvp, NULL, replac, - &pvpbuf[sizeof(pvpbuf)] - replac, - '\0', false); - if (arg_rvp < - &argvect[MAX_MAP_ARGS - 1]) - *++arg_rvp = replac; - replac += strlen(replac) + 1; - xpvp = NULL; - } - switch (nodetype) - { - case CANONHOST: - xpvp = rvp; - break; - - case CANONUSER: - default_rvp = rvp; - break; - } - } - if (*rvp != NULL) - *rvp++ = NULL; - if (xpvp != NULL) - { - cataddr(xpvp, NULL, replac, - &pvpbuf[sizeof(pvpbuf)] - replac, - '\0', false); - if (arg_rvp < &argvect[MAX_MAP_ARGS - 1]) - *++arg_rvp = replac; - } - if (arg_rvp >= &argvect[MAX_MAP_ARGS - 1]) - argvect[MAX_MAP_ARGS - 1] = NULL; - else - *++arg_rvp = NULL; - - /* save the remainder of the input string */ - trsize = (avp - rvp + 1) * sizeof(*rvp); - memmove((char *) pvpb1, (char *) rvp, trsize); - - /* look it up */ - cataddr(key_rvp, NULL, cbuf, sizeof(cbuf), - map == NULL ? '\0' : map->s_map.map_spacesub, - true); - argvect[0] = cbuf; - replac = map_lookup(map, cbuf, argvect, &rstat, e); - - /* if no replacement, use default */ - if (replac == NULL && default_rvp != NULL) - { - /* create the default */ - cataddr(default_rvp, NULL, cbuf, sizeof(cbuf), - '\0', false); - replac = cbuf; - } - - if (replac == NULL) - { - xpvp = key_rvp; - } - else if (*replac == '\0') - { - /* null replacement */ - nullpvp[0] = NULL; - xpvp = nullpvp; - } - else - { - /* scan the new replacement */ - xpvp = prescan(replac, '\0', pvpbuf, - sizeof(pvpbuf), NULL, NULL, - false); - if (xpvp == NULL) - { - /* prescan already printed error */ - return EX_DATAERR; - } - } - - /* append it to the token list */ - for (avp = hbrvp; *xpvp != NULL; xpvp++) - { - *avp++ = sm_rpool_strdup_x(e->e_rpool, *xpvp); - if (avp >= &npvp[maxatom]) - goto toolong; - } - - /* restore the old trailing information */ - rvp = avp - 1; - for (xpvp = pvpb1; (*avp++ = *xpvp++) != NULL; ) - if (avp >= &npvp[maxatom]) - goto toolong; - } - - /* - ** Check for subroutine calls. - */ - - status = callsubr(npvp, reclevel, e); - if (rstat == EX_OK || status == EX_TEMPFAIL) - rstat = status; - - /* copy vector back into original space. */ - for (avp = npvp; *avp++ != NULL;) - continue; - memmove((char *) pvp, (char *) npvp, - (int) (avp - npvp) * sizeof(*avp)); - - if (tTd(21, 4)) - { - sm_dprintf("rewritten as:"); - printav(sm_debug_file(), pvp); - } - } - - if (OpMode == MD_TEST) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "%s%-16.16s returns:", prefix, rulename); - printav(smioout, pvp); - } - else if (tTd(21, 1)) - { - sm_dprintf("%s%-16.16s returns:", prefix, rulename); - printav(sm_debug_file(), pvp); - } - return rstat; -} -/* -** CALLSUBR -- call subroutines in rewrite vector -** -** Parameters: -** pvp -- pointer to token vector. -** reclevel -- the current recursion level. -** e -- the current envelope. -** -** Returns: -** The status from the subroutine call. -** -** Side Effects: -** pvp is modified. -*/ - -static int -callsubr(pvp, reclevel, e) - char **pvp; - int reclevel; - ENVELOPE *e; -{ - char **avp; - register int i; - int subr, j; - int nsubr; - int status; - int rstat = EX_OK; -#define MAX_SUBR 16 - int subrnumber[MAX_SUBR]; - int subrindex[MAX_SUBR]; - - nsubr = 0; - - /* - ** Look for subroutine calls in pvp, collect them into subr*[] - ** We will perform the calls in the next loop, because we will - ** call the "last" subroutine first to avoid recursive calls - ** and too much copying. - */ - - for (avp = pvp, j = 0; *avp != NULL; avp++, j++) - { - if ((avp[0][0] & 0377) == CALLSUBR && avp[1] != NULL) - { - stripquotes(avp[1]); - subr = strtorwset(avp[1], NULL, ST_FIND); - if (subr < 0) - { - syserr("554 5.3.5 Unknown ruleset %s", avp[1]); - return EX_CONFIG; - } - - /* - ** XXX instead of doing this we could optimize - ** the rules after reading them: just remove - ** calls to empty rulesets - */ - - /* subroutine is an empty ruleset? don't call it */ - if (RewriteRules[subr] == NULL) - { - if (tTd(21, 3)) - sm_dprintf("-----skip subr %s (%d)\n", - avp[1], subr); - for (i = 2; avp[i] != NULL; i++) - avp[i - 2] = avp[i]; - avp[i - 2] = NULL; - continue; - } - if (++nsubr >= MAX_SUBR) - { - syserr("554 5.3.0 Too many subroutine calls (%d max)", - MAX_SUBR); - return EX_CONFIG; - } - subrnumber[nsubr] = subr; - subrindex[nsubr] = j; - } - } - - /* - ** Perform the actual subroutines calls, "last" one first, i.e., - ** go from the right to the left through all calls, - ** do the rewriting in place. - */ - - for (; nsubr > 0; nsubr--) - { - subr = subrnumber[nsubr]; - avp = pvp + subrindex[nsubr]; - - /* remove the subroutine call and name */ - for (i = 2; avp[i] != NULL; i++) - avp[i - 2] = avp[i]; - avp[i - 2] = NULL; - - /* - ** Now we need to call the ruleset specified for - ** the subroutine. We can do this in place since - ** we call the "last" subroutine first. - */ - - status = rewrite(avp, subr, reclevel, e, - MAXATOM - subrindex[nsubr]); - if (status != EX_OK && status != EX_TEMPFAIL) - return status; - if (rstat == EX_OK || status == EX_TEMPFAIL) - rstat = status; - } - return rstat; -} -/* -** MAP_LOOKUP -- do lookup in map -** -** Parameters: -** smap -- the map to use for the lookup. -** key -- the key to look up. -** argvect -- arguments to pass to the map lookup. -** pstat -- a pointer to an integer in which to store the -** status from the lookup. -** e -- the current envelope. -** -** Returns: -** The result of the lookup. -** NULL -- if there was no data for the given key. -*/ - -static char * -map_lookup(smap, key, argvect, pstat, e) - STAB *smap; - char key[]; - char **argvect; - int *pstat; - ENVELOPE *e; -{ - auto int status = EX_OK; - MAP *map; - char *replac; - - if (smap == NULL) - return NULL; - - map = &smap->s_map; - DYNOPENMAP(map); - - if (e->e_sendmode == SM_DEFER && - bitset(MF_DEFER, map->map_mflags)) - { - /* don't do any map lookups */ - if (tTd(60, 1)) - sm_dprintf("map_lookup(%s, %s) => DEFERRED\n", - smap->s_name, key); - *pstat = EX_TEMPFAIL; - return NULL; - } - - if (!bitset(MF_KEEPQUOTES, map->map_mflags)) - stripquotes(key); - - if (tTd(60, 1)) - { - sm_dprintf("map_lookup(%s, ", smap->s_name); - xputs(sm_debug_file(), key); - if (tTd(60, 5)) - { - int i; - - for (i = 0; argvect[i] != NULL; i++) - sm_dprintf(", %%%d=%s", i, argvect[i]); - } - sm_dprintf(") => "); - } - replac = (*map->map_class->map_lookup)(map, key, argvect, &status); - if (tTd(60, 1)) - sm_dprintf("%s (%d)\n", - replac != NULL ? replac : "NOT FOUND", - status); - - /* should recover if status == EX_TEMPFAIL */ - if (status == EX_TEMPFAIL && !bitset(MF_NODEFER, map->map_mflags)) - { - *pstat = EX_TEMPFAIL; - if (tTd(60, 1)) - sm_dprintf("map_lookup(%s, %s) tempfail: errno=%d\n", - smap->s_name, key, errno); - if (e->e_message == NULL) - { - char mbuf[320]; - - (void) sm_snprintf(mbuf, sizeof(mbuf), - "%.80s map: lookup (%s): deferred", - smap->s_name, - shortenstring(key, MAXSHORTSTR)); - e->e_message = sm_rpool_strdup_x(e->e_rpool, mbuf); - } - } - if (status == EX_TEMPFAIL && map->map_tapp != NULL) - { - size_t i = strlen(key) + strlen(map->map_tapp) + 1; - static char *rwbuf = NULL; - static size_t rwbuflen = 0; - - if (i > rwbuflen) - { - if (rwbuf != NULL) - sm_free(rwbuf); - rwbuflen = i; - rwbuf = (char *) sm_pmalloc_x(rwbuflen); - } - (void) sm_strlcpyn(rwbuf, rwbuflen, 2, key, map->map_tapp); - if (tTd(60, 4)) - sm_dprintf("map_lookup tempfail: returning \"%s\"\n", - rwbuf); - return rwbuf; - } - return replac; -} -/* -** INITERRMAILERS -- initialize error and discard mailers -** -** Parameters: -** none. -** -** Returns: -** none. -** -** Side Effects: -** initializes error and discard mailers. -*/ - -static MAILER discardmailer; -static MAILER errormailer; -static char *discardargv[] = { "DISCARD", NULL }; -static char *errorargv[] = { "ERROR", NULL }; - -void -initerrmailers() -{ - if (discardmailer.m_name == NULL) - { - /* initialize the discard mailer */ - discardmailer.m_name = "*discard*"; - discardmailer.m_mailer = "DISCARD"; - discardmailer.m_argv = discardargv; - } - if (errormailer.m_name == NULL) - { - /* initialize the bogus mailer */ - errormailer.m_name = "*error*"; - errormailer.m_mailer = "ERROR"; - errormailer.m_argv = errorargv; - } -} -/* -** BUILDADDR -- build address from token vector. -** -** Parameters: -** tv -- token vector. -** a -- pointer to address descriptor to fill. -** If NULL, one will be allocated. -** flags -- info regarding whether this is a sender or -** a recipient. -** e -- the current envelope. -** -** Returns: -** NULL if there was an error. -** 'a' otherwise. -** -** Side Effects: -** fills in 'a' -*/ - -static struct errcodes -{ - char *ec_name; /* name of error code */ - int ec_code; /* numeric code */ -} ErrorCodes[] = -{ - { "usage", EX_USAGE }, - { "nouser", EX_NOUSER }, - { "nohost", EX_NOHOST }, - { "unavailable", EX_UNAVAILABLE }, - { "software", EX_SOFTWARE }, - { "tempfail", EX_TEMPFAIL }, - { "protocol", EX_PROTOCOL }, - { "config", EX_CONFIG }, - { NULL, EX_UNAVAILABLE } -}; - -static ADDRESS * -buildaddr(tv, a, flags, e) - register char **tv; - register ADDRESS *a; - int flags; - register ENVELOPE *e; -{ - bool tempfail = false; - int maxatom; - struct mailer **mp; - register struct mailer *m; - register char *p; - char *mname; - char **hostp; - char hbuf[MAXNAME + 1]; - static char ubuf[MAXNAME + 2]; - - if (tTd(24, 5)) - { - sm_dprintf("buildaddr, flags=%x, tv=", flags); - printav(sm_debug_file(), tv); - } - - maxatom = MAXATOM; - if (a == NULL) - a = (ADDRESS *) sm_rpool_malloc_x(e->e_rpool, sizeof(*a)); - memset((char *) a, '\0', sizeof(*a)); - hbuf[0] = '\0'; - - /* set up default error return flags */ - a->q_flags |= DefaultNotify; - - /* figure out what net/mailer to use */ - if (*tv == NULL || (**tv & 0377) != CANONNET) - { - syserr("554 5.3.5 buildaddr: no mailer in parsed address"); -badaddr: - /* - ** ExitStat may have been set by an earlier map open - ** failure (to a permanent error (EX_OSERR) in syserr()) - ** so we also need to check if this particular $#error - ** return wanted a 4XX failure. - ** - ** XXX the real fix is probably to set ExitStat correctly, - ** i.e., to EX_TEMPFAIL if the map open is just a temporary - ** error. - */ - - if (ExitStat == EX_TEMPFAIL || tempfail) - a->q_state = QS_QUEUEUP; - else - { - a->q_state = QS_BADADDR; - a->q_mailer = &errormailer; - } - return a; - } - mname = *++tv; - --maxatom; - - /* extract host and user portions */ - if (*++tv != NULL && (**tv & 0377) == CANONHOST) - { - hostp = ++tv; - --maxatom; - } - else - hostp = NULL; - --maxatom; - while (*tv != NULL && (**tv & 0377) != CANONUSER) - { - tv++; - --maxatom; - } - if (*tv == NULL) - { - syserr("554 5.3.5 buildaddr: no user"); - goto badaddr; - } - if (tv == hostp) - hostp = NULL; - else if (hostp != NULL) - cataddr(hostp, tv - 1, hbuf, sizeof(hbuf), '\0', false); - cataddr(++tv, NULL, ubuf, sizeof(ubuf), ' ', false); - --maxatom; - - /* save away the host name */ - if (sm_strcasecmp(mname, "error") == 0) - { - /* Set up triplet for use by -bv */ - a->q_mailer = &errormailer; - a->q_user = sm_rpool_strdup_x(e->e_rpool, ubuf); - /* XXX wrong place? */ - - if (hostp != NULL) - { - register struct errcodes *ep; - - a->q_host = sm_rpool_strdup_x(e->e_rpool, hbuf); - if (strchr(hbuf, '.') != NULL) - { - a->q_status = sm_rpool_strdup_x(e->e_rpool, - hbuf); - setstat(dsntoexitstat(hbuf)); - } - else if (isascii(hbuf[0]) && isdigit(hbuf[0])) - { - setstat(atoi(hbuf)); - } - else - { - for (ep = ErrorCodes; ep->ec_name != NULL; ep++) - if (sm_strcasecmp(ep->ec_name, hbuf) == 0) - break; - setstat(ep->ec_code); - } - } - else - { - a->q_host = NULL; - setstat(EX_UNAVAILABLE); - } - stripquotes(ubuf); - if (ISSMTPCODE(ubuf) && ubuf[3] == ' ') - { - char fmt[16]; - int off; - - if ((off = isenhsc(ubuf + 4, ' ')) > 0) - { - ubuf[off + 4] = '\0'; - off += 5; - } - else - { - off = 4; - ubuf[3] = '\0'; - } - (void) sm_strlcpyn(fmt, sizeof(fmt), 2, ubuf, " %s"); - if (off > 4) - usrerr(fmt, ubuf + off); - else if (isenhsc(hbuf, '\0') > 0) - usrerrenh(hbuf, fmt, ubuf + off); - else - usrerr(fmt, ubuf + off); - /* XXX ubuf[off - 1] = ' '; */ - if (ubuf[0] == '4') - tempfail = true; - } - else - { - usrerr("553 5.3.0 %s", ubuf); - } - goto badaddr; - } - - for (mp = Mailer; (m = *mp++) != NULL; ) - { - if (sm_strcasecmp(m->m_name, mname) == 0) - break; - } - if (m == NULL) - { - syserr("554 5.3.5 buildaddr: unknown mailer %s", mname); - goto badaddr; - } - a->q_mailer = m; - - /* figure out what host (if any) */ - if (hostp == NULL) - { - if (!bitnset(M_LOCALMAILER, m->m_flags)) - { - syserr("554 5.3.5 buildaddr: no host"); - goto badaddr; - } - a->q_host = NULL; - } - else - a->q_host = sm_rpool_strdup_x(e->e_rpool, hbuf); - - /* figure out the user */ - p = ubuf; - if (bitnset(M_CHECKUDB, m->m_flags) && *p == '@') - { - p++; - tv++; - --maxatom; - a->q_flags |= QNOTREMOTE; - } - - /* do special mapping for local mailer */ - if (*p == '"') - p++; - if (*p == '|' && bitnset(M_CHECKPROG, m->m_flags)) - a->q_mailer = m = ProgMailer; - else if (*p == '/' && bitnset(M_CHECKFILE, m->m_flags)) - a->q_mailer = m = FileMailer; - else if (*p == ':' && bitnset(M_CHECKINCLUDE, m->m_flags)) - { - /* may be :include: */ - stripquotes(ubuf); - if (sm_strncasecmp(ubuf, ":include:", 9) == 0) - { - /* if :include:, don't need further rewriting */ - a->q_mailer = m = InclMailer; - a->q_user = sm_rpool_strdup_x(e->e_rpool, &ubuf[9]); - return a; - } - } - - /* rewrite according recipient mailer rewriting rules */ - macdefine(&e->e_macro, A_PERM, 'h', a->q_host); - - if (ConfigLevel >= 10 || - !bitset(RF_SENDERADDR|RF_HEADERADDR, flags)) - { - /* sender addresses done later */ - (void) rewrite(tv, 2, 0, e, maxatom); - if (m->m_re_rwset > 0) - (void) rewrite(tv, m->m_re_rwset, 0, e, maxatom); - } - (void) rewrite(tv, 4, 0, e, maxatom); - - /* save the result for the command line/RCPT argument */ - cataddr(tv, NULL, ubuf, sizeof(ubuf), '\0', true); - a->q_user = sm_rpool_strdup_x(e->e_rpool, ubuf); - - /* - ** Do mapping to lower case as requested by mailer - */ - - if (a->q_host != NULL && !bitnset(M_HST_UPPER, m->m_flags)) - makelower(a->q_host); - if (!bitnset(M_USR_UPPER, m->m_flags)) - makelower(a->q_user); - - if (tTd(24, 6)) - { - sm_dprintf("buildaddr => "); - printaddr(sm_debug_file(), a, false); - } - return a; -} - -/* -** CATADDR -- concatenate pieces of addresses (putting in <LWSP> subs) -** -** Parameters: -** pvp -- parameter vector to rebuild. -** evp -- last parameter to include. Can be NULL to -** use entire pvp. -** buf -- buffer to build the string into. -** sz -- size of buf. -** spacesub -- the space separator character; if '\0', -** use SpaceSub. -** external -- convert to external form? -** (no metacharacters; METAQUOTEs removed, see below) -** -** Returns: -** none. -** -** Side Effects: -** Destroys buf. -** -** Notes: -** There are two formats for strings: internal and external. -** The external format is just an eight-bit clean string (no -** null bytes, everything else OK). The internal format can -** include sendmail metacharacters. The special character -** METAQUOTE essentially quotes the character following, stripping -** it of all special semantics. -** -** The cataddr routine needs to be aware of whether it is producing -** an internal or external form as output (it only takes internal -** form as input). -** -** The parseaddr routine has a similar issue on input, but that -** is flagged on the basis of which token table is passed in. -*/ - -void -cataddr(pvp, evp, buf, sz, spacesub, external) - char **pvp; - char **evp; - char *buf; - register int sz; - int spacesub; - bool external; -{ - bool oatomtok, natomtok; - char *p; - - oatomtok = natomtok = false; - if (tTd(59, 14)) - { - sm_dprintf("cataddr(%d) <==", external); - printav(sm_debug_file(), pvp); - } - - if (sz <= 0) - return; - - if (spacesub == '\0') - spacesub = SpaceSub; - - if (pvp == NULL) - { - *buf = '\0'; - return; - } - p = buf; - sz -= 2; - while (*pvp != NULL && sz > 0) - { - char *q; - - natomtok = (ExtTokenTab[**pvp & 0xff] == ATM); - if (oatomtok && natomtok) - { - *p++ = spacesub; - if (--sz <= 0) - break; - } - for (q = *pvp; *q != '\0'; ) - { - int c; - - if (--sz <= 0) - break; - *p++ = c = *q++; - - /* - ** If the current character (c) is METAQUOTE and we - ** want the "external" form and the next character - ** is not NUL, then overwrite METAQUOTE with that - ** character (i.e., METAQUOTE ch is changed to - ** ch). p[-1] is used because p is advanced (above). - */ - - if ((c & 0377) == METAQUOTE && external && *q != '\0') - p[-1] = *q++; - } - if (sz <= 0) - break; - oatomtok = natomtok; - if (pvp++ == evp) - break; - } - -#if 0 - /* - ** Silently truncate long strings: even though this doesn't - ** seem like a good idea it is necessary because header checks - ** send the whole header value to rscheck() and hence rewrite(). - ** The latter however sometimes uses a "short" buffer (e.g., - ** cbuf[MAXNAME + 1]) to call cataddr() which then triggers this - ** error function. One possible fix to the problem is to pass - ** flags to rscheck() and rewrite() to distinguish the various - ** calls and only trigger the error if necessary. For now just - ** undo the change from 8.13.0. - */ - - if (sz <= 0) - usrerr("cataddr: string too long"); -#endif - *p = '\0'; - - if (tTd(59, 14)) - sm_dprintf(" cataddr => %s\n", str2prt(buf)); -} - -/* -** SAMEADDR -- Determine if two addresses are the same -** -** This is not just a straight comparison -- if the mailer doesn't -** care about the host we just ignore it, etc. -** -** Parameters: -** a, b -- pointers to the internal forms to compare. -** -** Returns: -** true -- they represent the same mailbox. -** false -- they don't. -** -** Side Effects: -** none. -*/ - -bool -sameaddr(a, b) - register ADDRESS *a; - register ADDRESS *b; -{ - register ADDRESS *ca, *cb; - - /* if they don't have the same mailer, forget it */ - if (a->q_mailer != b->q_mailer) - return false; - - /* if the user isn't the same, we can drop out */ - if (strcmp(a->q_user, b->q_user) != 0) - return false; - - /* if we have good uids for both but they differ, these are different */ - if (a->q_mailer == ProgMailer) - { - ca = getctladdr(a); - cb = getctladdr(b); - if (ca != NULL && cb != NULL && - bitset(QGOODUID, ca->q_flags & cb->q_flags) && - ca->q_uid != cb->q_uid) - return false; - } - - /* otherwise compare hosts (but be careful for NULL ptrs) */ - if (a->q_host == b->q_host) - { - /* probably both null pointers */ - return true; - } - if (a->q_host == NULL || b->q_host == NULL) - { - /* only one is a null pointer */ - return false; - } - if (strcmp(a->q_host, b->q_host) != 0) - return false; - - return true; -} -/* -** PRINTADDR -- print address (for debugging) -** -** Parameters: -** a -- the address to print -** follow -- follow the q_next chain. -** -** Returns: -** none. -** -** Side Effects: -** none. -*/ - -struct qflags -{ - char *qf_name; - unsigned long qf_bit; -}; - -static struct qflags AddressFlags[] = -{ - { "QGOODUID", QGOODUID }, - { "QPRIMARY", QPRIMARY }, - { "QNOTREMOTE", QNOTREMOTE }, - { "QSELFREF", QSELFREF }, - { "QBOGUSSHELL", QBOGUSSHELL }, - { "QUNSAFEADDR", QUNSAFEADDR }, - { "QPINGONSUCCESS", QPINGONSUCCESS }, - { "QPINGONFAILURE", QPINGONFAILURE }, - { "QPINGONDELAY", QPINGONDELAY }, - { "QHASNOTIFY", QHASNOTIFY }, - { "QRELAYED", QRELAYED }, - { "QEXPANDED", QEXPANDED }, - { "QDELIVERED", QDELIVERED }, - { "QDELAYED", QDELAYED }, - { "QTHISPASS", QTHISPASS }, - { "QRCPTOK", QRCPTOK }, - { NULL, 0 } -}; - -void -printaddr(fp, a, follow) - SM_FILE_T *fp; - register ADDRESS *a; - bool follow; -{ - register MAILER *m; - MAILER pseudomailer; - register struct qflags *qfp; - bool firstone; - - if (a == NULL) - { - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "[NULL]\n"); - return; - } - - while (a != NULL) - { - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "%p=", a); - (void) sm_io_flush(fp, SM_TIME_DEFAULT); - - /* find the mailer -- carefully */ - m = a->q_mailer; - if (m == NULL) - { - m = &pseudomailer; - m->m_mno = -1; - m->m_name = "NULL"; - } - - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "%s:\n\tmailer %d (%s), host `%s'\n", - a->q_paddr == NULL ? "<null>" : a->q_paddr, - m->m_mno, m->m_name, - a->q_host == NULL ? "<null>" : a->q_host); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\tuser `%s', ruser `%s'\n", - a->q_user, - a->q_ruser == NULL ? "<null>" : a->q_ruser); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "\tstate="); - switch (a->q_state) - { - case QS_OK: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "OK"); - break; - - case QS_DONTSEND: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "DONTSEND"); - break; - - case QS_BADADDR: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "BADADDR"); - break; - - case QS_QUEUEUP: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "QUEUEUP"); - break; - - case QS_RETRY: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "RETRY"); - break; - - case QS_SENT: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "SENT"); - break; - - case QS_VERIFIED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "VERIFIED"); - break; - - case QS_EXPANDED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "EXPANDED"); - break; - - case QS_SENDER: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "SENDER"); - break; - - case QS_CLONED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "CLONED"); - break; - - case QS_DISCARDED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "DISCARDED"); - break; - - case QS_REPLACED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "REPLACED"); - break; - - case QS_REMOVED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "REMOVED"); - break; - - case QS_DUPLICATE: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "DUPLICATE"); - break; - - case QS_INCLUDED: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "INCLUDED"); - break; - - default: - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "%d", a->q_state); - break; - } - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - ", next=%p, alias %p, uid %d, gid %d\n", - a->q_next, a->q_alias, - (int) a->q_uid, (int) a->q_gid); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "\tflags=%lx<", - a->q_flags); - firstone = true; - for (qfp = AddressFlags; qfp->qf_name != NULL; qfp++) - { - if (!bitset(qfp->qf_bit, a->q_flags)) - continue; - if (!firstone) - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - ","); - firstone = false; - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, "%s", - qfp->qf_name); - } - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, ">\n"); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\towner=%s, home=\"%s\", fullname=\"%s\"\n", - a->q_owner == NULL ? "(none)" : a->q_owner, - a->q_home == NULL ? "(none)" : a->q_home, - a->q_fullname == NULL ? "(none)" : a->q_fullname); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\torcpt=\"%s\", statmta=%s, status=%s\n", - a->q_orcpt == NULL ? "(none)" : a->q_orcpt, - a->q_statmta == NULL ? "(none)" : a->q_statmta, - a->q_status == NULL ? "(none)" : a->q_status); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\tfinalrcpt=\"%s\"\n", - a->q_finalrcpt == NULL ? "(none)" : a->q_finalrcpt); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\trstatus=\"%s\"\n", - a->q_rstatus == NULL ? "(none)" : a->q_rstatus); - (void) sm_io_fprintf(fp, SM_TIME_DEFAULT, - "\tstatdate=%s\n", - a->q_statdate == 0 ? "(none)" : ctime(&a->q_statdate)); - - if (!follow) - return; - a = a->q_next; - } -} -/* -** EMPTYADDR -- return true if this address is empty (``<>'') -** -** Parameters: -** a -- pointer to the address -** -** Returns: -** true -- if this address is "empty" (i.e., no one should -** ever generate replies to it. -** false -- if it is a "regular" (read: replyable) address. -*/ - -bool -emptyaddr(a) - register ADDRESS *a; -{ - return a->q_paddr == NULL || strcmp(a->q_paddr, "<>") == 0 || - a->q_user == NULL || strcmp(a->q_user, "<>") == 0; -} -/* -** REMOTENAME -- return the name relative to the current mailer -** -** Parameters: -** name -- the name to translate. -** m -- the mailer that we want to do rewriting relative to. -** flags -- fine tune operations. -** pstat -- pointer to status word. -** e -- the current envelope. -** -** Returns: -** the text string representing this address relative to -** the receiving mailer. -** -** Side Effects: -** none. -** -** Warnings: -** The text string returned is tucked away locally; -** copy it if you intend to save it. -*/ - -char * -remotename(name, m, flags, pstat, e) - char *name; - struct mailer *m; - int flags; - int *pstat; - register ENVELOPE *e; -{ - register char **pvp; - char *SM_NONVOLATILE fancy; - char *oldg; - int rwset; - static char buf[MAXNAME + 1]; - char lbuf[MAXNAME + 1]; - char pvpbuf[PSBUFSIZE]; - char addrtype[4]; - - if (tTd(12, 1)) - { - sm_dprintf("remotename("); - xputs(sm_debug_file(), name); - sm_dprintf(")\n"); - } - - /* don't do anything if we are tagging it as special */ - if (bitset(RF_SENDERADDR, flags)) - { - rwset = bitset(RF_HEADERADDR, flags) ? m->m_sh_rwset - : m->m_se_rwset; - addrtype[2] = 's'; - } - else - { - rwset = bitset(RF_HEADERADDR, flags) ? m->m_rh_rwset - : m->m_re_rwset; - addrtype[2] = 'r'; - } - if (rwset < 0) - return name; - addrtype[1] = ' '; - addrtype[3] = '\0'; - addrtype[0] = bitset(RF_HEADERADDR, flags) ? 'h' : 'e'; - macdefine(&e->e_macro, A_TEMP, macid("{addr_type}"), addrtype); - - /* - ** Do a heuristic crack of this name to extract any comment info. - ** This will leave the name as a comment and a $g macro. - */ - - if (bitset(RF_CANONICAL, flags) || bitnset(M_NOCOMMENT, m->m_flags)) - fancy = "\201g"; - else - fancy = crackaddr(name, e); - - /* - ** Turn the name into canonical form. - ** Normally this will be RFC 822 style, i.e., "user@domain". - ** If this only resolves to "user", and the "C" flag is - ** specified in the sending mailer, then the sender's - ** domain will be appended. - */ - - pvp = prescan(name, '\0', pvpbuf, sizeof(pvpbuf), NULL, NULL, false); - if (pvp == NULL) - return name; - if (REWRITE(pvp, 3, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - if (bitset(RF_ADDDOMAIN, flags) && e->e_fromdomain != NULL) - { - /* append from domain to this address */ - register char **pxp = pvp; - int l = MAXATOM; /* size of buffer for pvp */ - - /* see if there is an "@domain" in the current name */ - while (*pxp != NULL && strcmp(*pxp, "@") != 0) - { - pxp++; - --l; - } - if (*pxp == NULL) - { - /* no.... append the "@domain" from the sender */ - register char **qxq = e->e_fromdomain; - - while ((*pxp++ = *qxq++) != NULL) - { - if (--l <= 0) - { - *--pxp = NULL; - usrerr("553 5.1.0 remotename: too many tokens"); - *pstat = EX_UNAVAILABLE; - break; - } - } - if (REWRITE(pvp, 3, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - } - } - - /* - ** Do more specific rewriting. - ** Rewrite using ruleset 1 or 2 depending on whether this is - ** a sender address or not. - ** Then run it through any receiving-mailer-specific rulesets. - */ - - if (bitset(RF_SENDERADDR, flags)) - { - if (REWRITE(pvp, 1, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - } - else - { - if (REWRITE(pvp, 2, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - } - if (rwset > 0) - { - if (REWRITE(pvp, rwset, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - } - - /* - ** Do any final sanitation the address may require. - ** This will normally be used to turn internal forms - ** (e.g., user@host.LOCAL) into external form. This - ** may be used as a default to the above rules. - */ - - if (REWRITE(pvp, 4, e) == EX_TEMPFAIL) - *pstat = EX_TEMPFAIL; - - /* - ** Now restore the comment information we had at the beginning. - */ - - cataddr(pvp, NULL, lbuf, sizeof(lbuf), '\0', false); - oldg = macget(&e->e_macro, 'g'); - macset(&e->e_macro, 'g', lbuf); - - SM_TRY - /* need to make sure route-addrs have <angle brackets> */ - if (bitset(RF_CANONICAL, flags) && lbuf[0] == '@') - expand("<\201g>", buf, sizeof(buf), e); - else - expand(fancy, buf, sizeof(buf), e); - SM_FINALLY - macset(&e->e_macro, 'g', oldg); - SM_END_TRY - - if (tTd(12, 1)) - { - sm_dprintf("remotename => `"); - xputs(sm_debug_file(), buf); - sm_dprintf("'\n"); - } - return buf; -} -/* -** MAPLOCALUSER -- run local username through ruleset 5 for final redirection -** -** Parameters: -** a -- the address to map (but just the user name part). -** sendq -- the sendq in which to install any replacement -** addresses. -** aliaslevel -- the alias nesting depth. -** e -- the envelope. -** -** Returns: -** none. -*/ - -#define Q_COPYFLAGS (QPRIMARY|QBOGUSSHELL|QUNSAFEADDR|\ - Q_PINGFLAGS|QHASNOTIFY|\ - QRELAYED|QEXPANDED|QDELIVERED|QDELAYED|\ - QBYTRACE|QBYNDELAY|QBYNRELAY) - -void -maplocaluser(a, sendq, aliaslevel, e) - register ADDRESS *a; - ADDRESS **sendq; - int aliaslevel; - ENVELOPE *e; -{ - register char **pvp; - register ADDRESS *SM_NONVOLATILE a1 = NULL; - char pvpbuf[PSBUFSIZE]; - - if (tTd(29, 1)) - { - sm_dprintf("maplocaluser: "); - printaddr(sm_debug_file(), a, false); - } - pvp = prescan(a->q_user, '\0', pvpbuf, sizeof(pvpbuf), NULL, NULL, - false); - if (pvp == NULL) - { - if (tTd(29, 9)) - sm_dprintf("maplocaluser: cannot prescan %s\n", - a->q_user); - return; - } - - macdefine(&e->e_macro, A_PERM, 'h', a->q_host); - macdefine(&e->e_macro, A_PERM, 'u', a->q_user); - macdefine(&e->e_macro, A_PERM, 'z', a->q_home); - - macdefine(&e->e_macro, A_PERM, macid("{addr_type}"), "e r"); - if (REWRITE(pvp, 5, e) == EX_TEMPFAIL) - { - if (tTd(29, 9)) - sm_dprintf("maplocaluser: rewrite tempfail\n"); - a->q_state = QS_QUEUEUP; - a->q_status = "4.4.3"; - return; - } - if (pvp[0] == NULL || (pvp[0][0] & 0377) != CANONNET) - { - if (tTd(29, 9)) - sm_dprintf("maplocaluser: doesn't resolve\n"); - return; - } - - SM_TRY - a1 = buildaddr(pvp, NULL, 0, e); - SM_EXCEPT(exc, "E:mta.quickabort") - - /* - ** mark address as bad, S5 returned an error - ** and we gave that back to the SMTP client. - */ - - a->q_state = QS_DONTSEND; - sm_exc_raisenew_x(&EtypeQuickAbort, 2); - SM_END_TRY - - /* if non-null, mailer destination specified -- has it changed? */ - if (a1 == NULL || sameaddr(a, a1)) - { - if (tTd(29, 9)) - sm_dprintf("maplocaluser: address unchanged\n"); - return; - } - - /* make new address take on flags and print attributes of old */ - a1->q_flags &= ~Q_COPYFLAGS; - a1->q_flags |= a->q_flags & Q_COPYFLAGS; - a1->q_paddr = sm_rpool_strdup_x(e->e_rpool, a->q_paddr); - a1->q_finalrcpt = a->q_finalrcpt; - a1->q_orcpt = a->q_orcpt; - - /* mark old address as dead; insert new address */ - a->q_state = QS_REPLACED; - if (tTd(29, 5)) - { - sm_dprintf("maplocaluser: QS_REPLACED "); - printaddr(sm_debug_file(), a, false); - } - a1->q_alias = a; - allocaddr(a1, RF_COPYALL, sm_rpool_strdup_x(e->e_rpool, a->q_paddr), e); - (void) recipient(a1, sendq, aliaslevel, e); -} -/* -** DEQUOTE_INIT -- initialize dequote map -** -** Parameters: -** map -- the internal map structure. -** args -- arguments. -** -** Returns: -** true. -*/ - -bool -dequote_init(map, args) - MAP *map; - char *args; -{ - register char *p = args; - - /* there is no check whether there is really an argument */ - map->map_mflags |= MF_KEEPQUOTES; - for (;;) - { - while (isascii(*p) && isspace(*p)) - p++; - if (*p != '-') - break; - switch (*++p) - { - case 'a': - map->map_app = ++p; - break; - - case 'D': - map->map_mflags |= MF_DEFER; - break; - - case 'S': - case 's': - map->map_spacesub = *++p; - break; - } - while (*p != '\0' && !(isascii(*p) && isspace(*p))) - p++; - if (*p != '\0') - *p = '\0'; - } - if (map->map_app != NULL) - map->map_app = newstr(map->map_app); - - return true; -} -/* -** DEQUOTE_MAP -- unquote an address -** -** Parameters: -** map -- the internal map structure (ignored). -** name -- the name to dequote. -** av -- arguments (ignored). -** statp -- pointer to status out-parameter. -** -** Returns: -** NULL -- if there were no quotes, or if the resulting -** unquoted buffer would not be acceptable to prescan. -** else -- The dequoted buffer. -*/ - -/* ARGSUSED2 */ -char * -dequote_map(map, name, av, statp) - MAP *map; - char *name; - char **av; - int *statp; -{ - register char *p; - register char *q; - register char c; - int anglecnt = 0; - int cmntcnt = 0; - int quotecnt = 0; - int spacecnt = 0; - bool quotemode = false; - bool bslashmode = false; - char spacesub = map->map_spacesub; - - for (p = q = name; (c = *p++) != '\0'; ) - { - if (bslashmode) - { - bslashmode = false; - *q++ = c; - continue; - } - - if (c == ' ' && spacesub != '\0') - c = spacesub; - - switch (c) - { - case '\\': - bslashmode = true; - break; - - case '(': - cmntcnt++; - break; - - case ')': - if (cmntcnt-- <= 0) - return NULL; - break; - - case ' ': - case '\t': - spacecnt++; - break; - } - - if (cmntcnt > 0) - { - *q++ = c; - continue; - } - - switch (c) - { - case '"': - quotemode = !quotemode; - quotecnt++; - continue; - - case '<': - anglecnt++; - break; - - case '>': - if (anglecnt-- <= 0) - return NULL; - break; - } - *q++ = c; - } - - if (anglecnt != 0 || cmntcnt != 0 || bslashmode || - quotemode || quotecnt <= 0 || spacecnt != 0) - return NULL; - *q++ = '\0'; - return map_rewrite(map, name, strlen(name), NULL); -} -/* -** RSCHECK -- check string(s) for validity using rewriting sets -** -** Parameters: -** rwset -- the rewriting set to use. -** p1 -- the first string to check. -** p2 -- the second string to check -- may be null. -** e -- the current envelope. -** flags -- control some behavior, see RSF_ in sendmail.h -** logl -- logging level. -** host -- NULL or relay host. -** logid -- id for sm_syslog. -** addr -- if not NULL and ruleset returns $#error: -** store mailer triple here. -** -** Returns: -** EX_OK -- if the rwset doesn't resolve to $#error -** else -- the failure status (message printed) -*/ - -int -rscheck(rwset, p1, p2, e, flags, logl, host, logid, addr) - char *rwset; - char *p1; - char *p2; - ENVELOPE *e; - int flags; - int logl; - char *host; - char *logid; - ADDRESS *addr; -{ - char *volatile buf; - size_t bufsize; - int saveexitstat; - int volatile rstat = EX_OK; - char **pvp; - int rsno; - bool volatile discard = false; - bool saveQuickAbort = QuickAbort; - bool saveSuprErrs = SuprErrs; - bool quarantine = false; - char ubuf[BUFSIZ * 2]; - char buf0[MAXLINE]; - char pvpbuf[PSBUFSIZE]; - extern char MsgBuf[]; - - if (tTd(48, 2)) - sm_dprintf("rscheck(%s, %s, %s)\n", rwset, p1, - p2 == NULL ? "(NULL)" : p2); - - rsno = strtorwset(rwset, NULL, ST_FIND); - if (rsno < 0) - return EX_OK; - - if (p2 != NULL) - { - bufsize = strlen(p1) + strlen(p2) + 2; - if (bufsize > sizeof(buf0)) - buf = sm_malloc_x(bufsize); - else - { - buf = buf0; - bufsize = sizeof(buf0); - } - (void) sm_snprintf(buf, bufsize, "%s%c%s", p1, CONDELSE, p2); - } - else - { - bufsize = strlen(p1) + 1; - if (bufsize > sizeof(buf0)) - buf = sm_malloc_x(bufsize); - else - { - buf = buf0; - bufsize = sizeof(buf0); - } - (void) sm_strlcpy(buf, p1, bufsize); - } - SM_TRY - { - SuprErrs = true; - QuickAbort = false; - pvp = prescan(buf, '\0', pvpbuf, sizeof(pvpbuf), NULL, - bitset(RSF_RMCOMM, flags) ? - IntTokenTab : TokTypeNoC, - bitset(RSF_RMCOMM, flags) ? false : true); - SuprErrs = saveSuprErrs; - if (pvp == NULL) - { - if (tTd(48, 2)) - sm_dprintf("rscheck: cannot prescan input\n"); - /* - syserr("rscheck: cannot prescan input: \"%s\"", - shortenstring(buf, MAXSHORTSTR)); - rstat = EX_DATAERR; - */ - goto finis; - } - if (bitset(RSF_UNSTRUCTURED, flags)) - SuprErrs = true; - (void) REWRITE(pvp, rsno, e); - if (bitset(RSF_UNSTRUCTURED, flags)) - SuprErrs = saveSuprErrs; - if (pvp[0] == NULL || (pvp[0][0] & 0377) != CANONNET || - pvp[1] == NULL || (strcmp(pvp[1], "error") != 0 && - strcmp(pvp[1], "discard") != 0)) - { - goto finis; - } - - if (strcmp(pvp[1], "discard") == 0) - { - if (tTd(48, 2)) - sm_dprintf("rscheck: discard mailer selected\n"); - e->e_flags |= EF_DISCARD; - discard = true; - } - else if (strcmp(pvp[1], "error") == 0 && - pvp[2] != NULL && (pvp[2][0] & 0377) == CANONHOST && - pvp[3] != NULL && strcmp(pvp[3], "quarantine") == 0) - { - if (pvp[4] == NULL || - (pvp[4][0] & 0377) != CANONUSER || - pvp[5] == NULL) - e->e_quarmsg = sm_rpool_strdup_x(e->e_rpool, - rwset); - else - { - cataddr(&(pvp[5]), NULL, ubuf, - sizeof(ubuf), ' ', true); - e->e_quarmsg = sm_rpool_strdup_x(e->e_rpool, - ubuf); - } - macdefine(&e->e_macro, A_PERM, - macid("{quarantine}"), e->e_quarmsg); - quarantine = true; - } - else - { - auto ADDRESS a1; - int savelogusrerrs = LogUsrErrs; - static bool logged = false; - - /* got an error -- process it */ - saveexitstat = ExitStat; - LogUsrErrs = false; - (void) buildaddr(pvp, &a1, 0, e); - if (addr != NULL) - { - addr->q_mailer = a1.q_mailer; - addr->q_user = a1.q_user; - addr->q_host = a1.q_host; - } - LogUsrErrs = savelogusrerrs; - rstat = ExitStat; - ExitStat = saveexitstat; - if (!logged) - { - if (bitset(RSF_COUNT, flags)) - markstats(e, &a1, STATS_REJECT); - logged = true; - } - } - - if (LogLevel > logl) - { - char *relay; - char *p; - char lbuf[MAXLINE]; - - p = lbuf; - if (p2 != NULL) - { - (void) sm_snprintf(p, SPACELEFT(lbuf, p), - ", arg2=%s", - p2); - p += strlen(p); - } - - if (host != NULL) - relay = host; - else - relay = macvalue('_', e); - if (relay != NULL) - { - (void) sm_snprintf(p, SPACELEFT(lbuf, p), - ", relay=%s", relay); - p += strlen(p); - } - *p = '\0'; - if (discard) - sm_syslog(LOG_NOTICE, logid, - "ruleset=%s, arg1=%s%s, discard", - rwset, p1, lbuf); - else if (quarantine) - sm_syslog(LOG_NOTICE, logid, - "ruleset=%s, arg1=%s%s, quarantine=%s", - rwset, p1, lbuf, ubuf); - else - sm_syslog(LOG_NOTICE, logid, - "ruleset=%s, arg1=%s%s, reject=%s", - rwset, p1, lbuf, MsgBuf); - } - - finis: ; - } - SM_FINALLY - { - /* clean up */ - if (buf != buf0) - sm_free(buf); - QuickAbort = saveQuickAbort; - } - SM_END_TRY - - setstat(rstat); - - /* rulesets don't set errno */ - errno = 0; - if (rstat != EX_OK && QuickAbort) - sm_exc_raisenew_x(&EtypeQuickAbort, 2); - return rstat; -} -/* -** RSCAP -- call rewriting set to return capabilities -** -** Parameters: -** rwset -- the rewriting set to use. -** p1 -- the first string to check. -** p2 -- the second string to check -- may be null. -** e -- the current envelope. -** pvp -- pointer to token vector. -** pvpbuf -- buffer space. -** size -- size of buffer space. -** -** Returns: -** EX_UNAVAILABLE -- ruleset doesn't exist. -** EX_DATAERR -- prescan() failed. -** EX_OK -- rewrite() was successful. -** else -- return status from rewrite(). -*/ - -int -rscap(rwset, p1, p2, e, pvp, pvpbuf, size) - char *rwset; - char *p1; - char *p2; - ENVELOPE *e; - char ***pvp; - char *pvpbuf; - int size; -{ - char *volatile buf; - size_t bufsize; - int volatile rstat = EX_OK; - int rsno; - bool saveQuickAbort = QuickAbort; - bool saveSuprErrs = SuprErrs; - char buf0[MAXLINE]; - extern char MsgBuf[]; - - if (tTd(48, 2)) - sm_dprintf("rscap(%s, %s, %s)\n", rwset, p1, - p2 == NULL ? "(NULL)" : p2); - - SM_REQUIRE(pvp != NULL); - rsno = strtorwset(rwset, NULL, ST_FIND); - if (rsno < 0) - return EX_UNAVAILABLE; - - if (p2 != NULL) - { - bufsize = strlen(p1) + strlen(p2) + 2; - if (bufsize > sizeof(buf0)) - buf = sm_malloc_x(bufsize); - else - { - buf = buf0; - bufsize = sizeof(buf0); - } - (void) sm_snprintf(buf, bufsize, "%s%c%s", p1, CONDELSE, p2); - } - else - { - bufsize = strlen(p1) + 1; - if (bufsize > sizeof(buf0)) - buf = sm_malloc_x(bufsize); - else - { - buf = buf0; - bufsize = sizeof(buf0); - } - (void) sm_strlcpy(buf, p1, bufsize); - } - SM_TRY - { - SuprErrs = true; - QuickAbort = false; - *pvp = prescan(buf, '\0', pvpbuf, size, NULL, IntTokenTab, - false); - if (*pvp != NULL) - rstat = rewrite(*pvp, rsno, 0, e, size); - else - { - if (tTd(48, 2)) - sm_dprintf("rscap: cannot prescan input\n"); - rstat = EX_DATAERR; - } - } - SM_FINALLY - { - /* clean up */ - if (buf != buf0) - sm_free(buf); - SuprErrs = saveSuprErrs; - QuickAbort = saveQuickAbort; - - /* prevent information leak, this may contain rewrite error */ - MsgBuf[0] = '\0'; - } - SM_END_TRY - return rstat; -} |
