Commit | Line | Data |
---|---|---|
f0e070dc | 1 | /* |
dc45ba8c | 2 | * Copyright (c) 1983 Eric P. Allman |
c1f0acb8 KB |
3 | * Copyright (c) 1988, 1993 |
4 | * The Regents of the University of California. All rights reserved. | |
bee79b64 | 5 | * |
417f7a11 | 6 | * %sccs.include.redist.c% |
bee79b64 | 7 | */ |
f0e070dc MAN |
8 | |
9 | #ifndef lint | |
66d16835 | 10 | static char sccsid[] = "@(#)parseaddr.c 8.61 (Berkeley) %G%"; |
bee79b64 | 11 | #endif /* not lint */ |
f0e070dc | 12 | |
fd6cfc53 EA |
13 | #include "sendmail.h" |
14 | ||
d30b0654 EA |
15 | static int callsubr __P((char **, int, ENVELOPE *)); |
16 | ||
fd6cfc53 EA |
17 | #ifdef CC_WONT_PROMOTE |
18 | static int toktype __P((char)); | |
19 | #else /* !CC_WONT_PROMOTE */ | |
20 | static int toktype __P((int)); /* char -> int */ | |
21 | #endif /* CC_WONT_PROMOTE */ | |
22 | static void _rewrite __P((char **, int)); | |
23 | static void callsubr __P((char **)); | |
24 | static ADDRESS * buildaddr __P((char **, ADDRESS *)); | |
25 | static void uurelativize __P((const char *, const char *, char **)); | |
26 | ||
27 | char *DelimChar; /* set to point to the delimiter */ | |
916b3375 | 28 | |
b3cbe40f | 29 | /* |
40d27fed | 30 | ** PARSEADDR -- Parse an address |
b3cbe40f EA |
31 | ** |
32 | ** Parses an address and breaks it up into three parts: a | |
33 | ** net to transmit the message on, the host to transmit it | |
34 | ** to, and a user on that host. These are loaded into an | |
406f98bc | 35 | ** ADDRESS header with the values squirreled away if necessary. |
b3cbe40f EA |
36 | ** The "user" part may not be a real user; the process may |
37 | ** just reoccur on that machine. For example, on a machine | |
38 | ** with an arpanet connection, the address | |
39 | ** csvax.bill@berkeley | |
40 | ** will break up to a "user" of 'csvax.bill' and a host | |
41 | ** of 'berkeley' -- to be transmitted over the arpanet. | |
42 | ** | |
43 | ** Parameters: | |
44 | ** addr -- the address to parse. | |
45 | ** a -- a pointer to the address descriptor buffer. | |
46 | ** If NULL, a header will be created. | |
28f94061 EA |
47 | ** flags -- describe detail for parsing. See RF_ definitions |
48 | ** in sendmail.h. | |
d3f52e20 EA |
49 | ** delim -- the character to terminate the address, passed |
50 | ** to prescan. | |
9e2cf26f EA |
51 | ** delimptr -- if non-NULL, set to the location of the |
52 | ** delim character that was found. | |
a4076aed | 53 | ** e -- the envelope that will contain this address. |
b3cbe40f EA |
54 | ** |
55 | ** Returns: | |
56 | ** A pointer to the address descriptor header (`a' if | |
57 | ** `a' is non-NULL). | |
58 | ** NULL on error. | |
59 | ** | |
60 | ** Side Effects: | |
61 | ** none | |
b3cbe40f EA |
62 | */ |
63 | ||
7338e3d4 | 64 | /* following delimiters are inherent to the internal algorithms */ |
3f99edce | 65 | # define DELIMCHARS "()<>,;\r\n" /* default word delimiters */ |
ecf90b7d | 66 | |
406f98bc | 67 | ADDRESS * |
28f94061 | 68 | parseaddr(addr, a, flags, delim, delimptr, e) |
b3cbe40f | 69 | char *addr; |
406f98bc | 70 | register ADDRESS *a; |
28f94061 | 71 | int flags; |
ef3bc6b1 | 72 | int delim; |
9e2cf26f | 73 | char **delimptr; |
a4076aed | 74 | register ENVELOPE *e; |
b3cbe40f | 75 | { |
d6a28dd8 | 76 | register char **pvp; |
9e2cf26f | 77 | auto char *delimptrbuf; |
d1db7a89 | 78 | bool queueup; |
217a0102 | 79 | char pvpbuf[PSBUFSIZE]; |
b3cbe40f EA |
80 | |
81 | /* | |
82 | ** Initialize and prescan address. | |
83 | */ | |
84 | ||
a4076aed | 85 | e->e_to = addr; |
9678c96d | 86 | if (tTd(20, 1)) |
40d27fed | 87 | printf("\n--parseaddr(%s)\n", addr); |
9e3c0a28 | 88 | |
fd6cfc53 EA |
89 | { |
90 | extern char *DelimChar; /* parseaddr.c */ | |
91 | char savec; | |
92 | bool invalid; | |
c40bef63 EA |
93 | extern char *finddelim(); |
94 | extern bool invalidaddr(); | |
fd6cfc53 EA |
95 | |
96 | DelimChar = finddelim(addr, delim); | |
97 | savec = *DelimChar; | |
98 | *DelimChar = '\0'; | |
99 | invalid = invalidaddr(addr); | |
100 | *DelimChar = savec; | |
101 | if (invalid) | |
102 | return (NULL); | |
103 | } | |
104 | ||
9e2cf26f EA |
105 | if (delimptr == NULL) |
106 | delimptr = &delimptrbuf; | |
107 | ||
148ea694 | 108 | pvp = prescan(addr, delim, pvpbuf, sizeof pvpbuf, delimptr); |
d6a28dd8 | 109 | if (pvp == NULL) |
a17692a9 EA |
110 | { |
111 | if (tTd(20, 1)) | |
112 | printf("parseaddr-->NULL\n"); | |
b3cbe40f | 113 | return (NULL); |
a17692a9 | 114 | } |
b3cbe40f | 115 | |
7c40218a EA |
116 | if (invalidaddr(addr, delim == '\0' ? NULL : *delimptr)) |
117 | { | |
118 | if (tTd(20, 1)) | |
119 | printf("parseaddr-->bad address\n"); | |
120 | return NULL; | |
121 | } | |
122 | ||
dab5fedb EA |
123 | /* |
124 | ** Save addr if we are going to have to. | |
125 | ** | |
126 | ** We have to do this early because there is a chance that | |
127 | ** the map lookups in the rewriting rules could clobber | |
128 | ** static memory somewhere. | |
129 | */ | |
130 | ||
131 | if (bitset(RF_COPYPADDR, flags) && addr != NULL) | |
132 | { | |
133 | char savec = **delimptr; | |
134 | ||
135 | if (savec != '\0') | |
136 | **delimptr = '\0'; | |
55168534 | 137 | e->e_to = addr = newstr(addr); |
dab5fedb EA |
138 | if (savec != '\0') |
139 | **delimptr = savec; | |
140 | } | |
141 | ||
b3cbe40f | 142 | /* |
d6a28dd8 | 143 | ** Apply rewriting rules. |
0908f182 | 144 | ** Ruleset 0 does basic parsing. It must resolve. |
b3cbe40f EA |
145 | */ |
146 | ||
d1db7a89 | 147 | queueup = FALSE; |
b141a9b6 | 148 | if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL) |
d1db7a89 | 149 | queueup = TRUE; |
b141a9b6 | 150 | if (rewrite(pvp, 0, 0, e) == EX_TEMPFAIL) |
d1db7a89 | 151 | queueup = TRUE; |
b3cbe40f | 152 | |
b3cbe40f EA |
153 | |
154 | /* | |
d6a28dd8 | 155 | ** Build canonical address from pvp. |
b3cbe40f EA |
156 | */ |
157 | ||
28f94061 | 158 | a = buildaddr(pvp, a, flags, e); |
b3cbe40f EA |
159 | |
160 | /* | |
d6a28dd8 EA |
161 | ** Make local copies of the host & user and then |
162 | ** transport them out. | |
b3cbe40f EA |
163 | */ |
164 | ||
dab5fedb | 165 | allocaddr(a, flags, addr); |
9577b1df EA |
166 | if (bitset(QBADADDR, a->q_flags)) |
167 | return a; | |
d13779b1 | 168 | |
d1db7a89 EA |
169 | /* |
170 | ** If there was a parsing failure, mark it for queueing. | |
171 | */ | |
172 | ||
173 | if (queueup) | |
c281eee3 | 174 | { |
7ffb494c EA |
175 | char *msg = "Transient parse error -- message queued for future delivery"; |
176 | ||
c281eee3 EA |
177 | if (tTd(20, 1)) |
178 | printf("parseaddr: queuing message\n"); | |
7ffb494c EA |
179 | message(msg); |
180 | if (e->e_message == NULL) | |
f10d3e38 | 181 | e->e_message = newstr(msg); |
d1db7a89 | 182 | a->q_flags |= QQUEUEUP; |
09d45ea9 | 183 | a->q_status = "4.4.3"; |
c281eee3 | 184 | } |
d1db7a89 | 185 | |
d13779b1 EA |
186 | /* |
187 | ** Compute return value. | |
188 | */ | |
189 | ||
190 | if (tTd(20, 1)) | |
191 | { | |
192 | printf("parseaddr-->"); | |
193 | printaddr(a, FALSE); | |
194 | } | |
195 | ||
196 | return (a); | |
197 | } | |
198 | \f/* | |
ab542b8f EA |
199 | ** INVALIDADDR -- check for address containing meta-characters |
200 | ** | |
201 | ** Parameters: | |
202 | ** addr -- the address to check. | |
203 | ** | |
204 | ** Returns: | |
205 | ** TRUE -- if the address has any "wierd" characters | |
206 | ** FALSE -- otherwise. | |
207 | */ | |
208 | ||
209 | bool | |
7c40218a | 210 | invalidaddr(addr, delimptr) |
ab542b8f | 211 | register char *addr; |
7c40218a | 212 | char *delimptr; |
ab542b8f | 213 | { |
ea07b2d2 | 214 | char savedelim = '\0'; |
7c40218a EA |
215 | |
216 | if (delimptr != NULL) | |
46275151 | 217 | { |
7c40218a | 218 | savedelim = *delimptr; |
46275151 EA |
219 | if (savedelim != '\0') |
220 | *delimptr = '\0'; | |
221 | } | |
7c40218a EA |
222 | #if 0 |
223 | /* for testing.... */ | |
224 | if (strcmp(addr, "INvalidADDR") == 0) | |
ab542b8f | 225 | { |
7c40218a | 226 | usrerr("553 INvalid ADDRess"); |
46275151 | 227 | goto addrfailure; |
ab542b8f | 228 | } |
7c40218a EA |
229 | #endif |
230 | for (; *addr != '\0'; addr++) | |
231 | { | |
232 | if ((*addr & 0340) == 0200) | |
233 | break; | |
234 | } | |
7c40218a | 235 | if (*addr == '\0') |
46275151 | 236 | { |
c0f381db | 237 | if (delimptr != NULL && savedelim != '\0') |
46275151 | 238 | *delimptr = savedelim; |
7c40218a | 239 | return FALSE; |
46275151 | 240 | } |
7c40218a EA |
241 | setstat(EX_USAGE); |
242 | usrerr("553 Address contained invalid control characters"); | |
46275151 | 243 | addrfailure: |
b758423c | 244 | if (delimptr != NULL && savedelim != '\0') |
46275151 | 245 | *delimptr = savedelim; |
7c40218a | 246 | return TRUE; |
ab542b8f EA |
247 | } |
248 | \f/* | |
d13779b1 EA |
249 | ** ALLOCADDR -- do local allocations of address on demand. |
250 | ** | |
251 | ** Also lowercases the host name if requested. | |
252 | ** | |
253 | ** Parameters: | |
254 | ** a -- the address to reallocate. | |
28f94061 EA |
255 | ** flags -- the copy flag (see RF_ definitions in sendmail.h |
256 | ** for a description). | |
d13779b1 EA |
257 | ** paddr -- the printname of the address. |
258 | ** | |
259 | ** Returns: | |
260 | ** none. | |
261 | ** | |
262 | ** Side Effects: | |
263 | ** Copies portions of a into local buffers as requested. | |
264 | */ | |
265 | ||
dab5fedb | 266 | allocaddr(a, flags, paddr) |
d13779b1 | 267 | register ADDRESS *a; |
28f94061 | 268 | int flags; |
d13779b1 EA |
269 | char *paddr; |
270 | { | |
7002d4e7 | 271 | if (tTd(24, 4)) |
d6474f90 | 272 | printf("allocaddr(flags=%x, paddr=%s)\n", flags, paddr); |
7002d4e7 | 273 | |
dab5fedb | 274 | a->q_paddr = paddr; |
2e3062fe EA |
275 | |
276 | if (a->q_user == NULL) | |
277 | a->q_user = ""; | |
278 | if (a->q_host == NULL) | |
279 | a->q_host = ""; | |
280 | ||
28f94061 | 281 | if (bitset(RF_COPYPARSE, flags)) |
b3cbe40f | 282 | { |
2e3062fe | 283 | a->q_host = newstr(a->q_host); |
d6a28dd8 EA |
284 | if (a->q_user != a->q_paddr) |
285 | a->q_user = newstr(a->q_user); | |
b3cbe40f EA |
286 | } |
287 | ||
d13779b1 EA |
288 | if (a->q_paddr == NULL) |
289 | a->q_paddr = a->q_user; | |
0fe3917f EA |
290 | } |
291 | \f/* | |
fd6cfc53 EA |
292 | ** INVALIDADDR -- check an address string for invalid control characters. |
293 | ** | |
294 | ** Parameters: | |
295 | ** addr -- address string to be checked. | |
296 | ** | |
297 | ** Returns: | |
298 | ** TRUE if address string could cause problems, FALSE o/w. | |
299 | ** | |
300 | ** Side Effects: | |
301 | ** ExitStat may be changed and an error message generated. | |
302 | */ | |
303 | ||
304 | bool | |
305 | invalidaddr(addr) | |
306 | const char *addr; | |
307 | { | |
308 | register const char *cp; | |
309 | ||
310 | /* make sure error messages don't have garbage on them */ | |
311 | errno = 0; | |
312 | ||
313 | /* | |
314 | ** Sendmail reserves characters 020 - 036 for rewriting rules | |
315 | ** which can cause havoc (e.g. infinite rewriting loops) if | |
316 | ** one shows up at the wrong time. If any of these characters | |
317 | ** appear in an address, the address is deemed "invalid" and | |
318 | ** an error message is generated. | |
319 | */ | |
320 | ||
321 | for (cp = addr; *cp; cp++) | |
322 | if ((*cp >= MATCHZANY && *cp <= HOSTEND) || *cp == '\001') | |
323 | { | |
324 | setstat(EX_USAGE); | |
325 | usrerr("address contained invalid control char(s)"); | |
326 | return (TRUE); | |
327 | } | |
328 | return (FALSE); | |
329 | } | |
330 | \f/* | |
b3cbe40f EA |
331 | ** PRESCAN -- Prescan name and make it canonical |
332 | ** | |
7338e3d4 EA |
333 | ** Scans a name and turns it into a set of tokens. This process |
334 | ** deletes blanks and comments (in parentheses). | |
b3cbe40f EA |
335 | ** |
336 | ** This routine knows about quoted strings and angle brackets. | |
337 | ** | |
338 | ** There are certain subtleties to this routine. The one that | |
339 | ** comes to mind now is that backslashes on the ends of names | |
340 | ** are silently stripped off; this is intentional. The problem | |
341 | ** is that some versions of sndmsg (like at LBL) set the kill | |
342 | ** character to something other than @ when reading addresses; | |
343 | ** so people type "csvax.eric\@berkeley" -- which screws up the | |
344 | ** berknet mailer. | |
345 | ** | |
346 | ** Parameters: | |
347 | ** addr -- the name to chomp. | |
b3cbe40f EA |
348 | ** delim -- the delimiter for the address, normally |
349 | ** '\0' or ','; \0 is accepted in any case. | |
f12f79be | 350 | ** If '\t' then we are reading the .cf file. |
217a0102 EA |
351 | ** pvpbuf -- place to put the saved text -- note that |
352 | ** the pointers are static. | |
148ea694 | 353 | ** pvpbsize -- size of pvpbuf. |
9e2cf26f EA |
354 | ** delimptr -- if non-NULL, set to the location of the |
355 | ** terminating delimiter. | |
b3cbe40f EA |
356 | ** |
357 | ** Returns: | |
d6a28dd8 | 358 | ** A pointer to a vector of tokens. |
b3cbe40f | 359 | ** NULL on error. |
b3cbe40f EA |
360 | */ |
361 | ||
506fc377 EA |
362 | /* states and character types */ |
363 | # define OPR 0 /* operator */ | |
364 | # define ATM 1 /* atom */ | |
365 | # define QST 2 /* in quoted string */ | |
366 | # define SPC 3 /* chewing up spaces */ | |
367 | # define ONE 4 /* pick up one character */ | |
368 | ||
369 | # define NSTATES 5 /* number of states */ | |
370 | # define TYPE 017 /* mask to select state type */ | |
371 | ||
372 | /* meta bits for table */ | |
373 | # define M 020 /* meta character; don't pass through */ | |
374 | # define B 040 /* cause a break */ | |
375 | # define MB M|B /* meta-break */ | |
376 | ||
377 | static short StateTab[NSTATES][NSTATES] = | |
378 | { | |
921e1125 | 379 | /* oldst chtype> OPR ATM QST SPC ONE */ |
1f513630 EA |
380 | /*OPR*/ OPR|B, ATM|B, QST|B, SPC|MB, ONE|B, |
381 | /*ATM*/ OPR|B, ATM, QST|B, SPC|MB, ONE|B, | |
382 | /*QST*/ QST, QST, OPR, QST, QST, | |
506fc377 EA |
383 | /*SPC*/ OPR, ATM, QST, SPC|M, ONE, |
384 | /*ONE*/ OPR, OPR, OPR, OPR, OPR, | |
385 | }; | |
386 | ||
1954e81b EA |
387 | /* token type table -- it gets modified with $o characters */ |
388 | static TokTypeTab[256] = | |
389 | { | |
390 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,SPC,SPC,SPC,SPC,SPC,ATM,ATM, | |
391 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
392 | SPC,ATM,QST,ATM,ATM,ATM,ATM,ATM,ATM,SPC,ATM,ATM,ATM,ATM,ATM,ATM, | |
393 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
394 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
395 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
396 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
397 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
398 | OPR,OPR,ONE,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, | |
399 | OPR,OPR,OPR,ONE,ONE,ONE,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR,OPR, | |
400 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
401 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
402 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
403 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
404 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
405 | ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM,ATM, | |
406 | }; | |
407 | ||
408 | #define toktype(c) ((int) TokTypeTab[(c) & 0xff]) | |
409 | ||
410 | ||
506fc377 EA |
411 | # define NOCHAR -1 /* signal nothing in lookahead token */ |
412 | ||
d6a28dd8 | 413 | char ** |
148ea694 | 414 | prescan(addr, delim, pvpbuf, pvpbsize, delimptr) |
b3cbe40f | 415 | char *addr; |
ae9a1656 | 416 | int delim; |
217a0102 | 417 | char pvpbuf[]; |
9e2cf26f | 418 | char **delimptr; |
b3cbe40f EA |
419 | { |
420 | register char *p; | |
506fc377 | 421 | register char *q; |
611b763d | 422 | register int c; |
d6a28dd8 | 423 | char **avp; |
b3cbe40f EA |
424 | bool bslashmode; |
425 | int cmntcnt; | |
e93460a9 | 426 | int anglecnt; |
d6a28dd8 | 427 | char *tok; |
506fc377 EA |
428 | int state; |
429 | int newstate; | |
fba945cd | 430 | char *saveto = CurEnv->e_to; |
506fc377 | 431 | static char *av[MAXATOM+1]; |
1954e81b EA |
432 | static char firsttime = TRUE; |
433 | ||
434 | if (firsttime) | |
435 | { | |
436 | /* initialize the token type table */ | |
437 | char obuf[50]; | |
438 | ||
439 | firsttime = FALSE; | |
832e8a27 | 440 | expand("\201o", obuf, sizeof obuf - sizeof DELIMCHARS, CurEnv); |
1954e81b EA |
441 | strcat(obuf, DELIMCHARS); |
442 | for (p = obuf; *p != '\0'; p++) | |
443 | { | |
444 | if (TokTypeTab[*p & 0xff] == ATM) | |
445 | TokTypeTab[*p & 0xff] = OPR; | |
446 | } | |
447 | } | |
15cd119d EA |
448 | |
449 | /* make sure error messages don't have garbage on them */ | |
450 | errno = 0; | |
b3cbe40f | 451 | |
217a0102 | 452 | q = pvpbuf; |
d6a28dd8 | 453 | bslashmode = FALSE; |
43ff8bb5 | 454 | cmntcnt = 0; |
e93460a9 | 455 | anglecnt = 0; |
d6a28dd8 | 456 | avp = av; |
85c61679 | 457 | state = ATM; |
506fc377 EA |
458 | c = NOCHAR; |
459 | p = addr; | |
fba945cd | 460 | CurEnv->e_to = p; |
97a521ff | 461 | if (tTd(22, 11)) |
506fc377 EA |
462 | { |
463 | printf("prescan: "); | |
464 | xputs(p); | |
03388044 | 465 | (void) putchar('\n'); |
506fc377 | 466 | } |
506fc377 EA |
467 | |
468 | do | |
b3cbe40f | 469 | { |
d6a28dd8 EA |
470 | /* read a token */ |
471 | tok = q; | |
506fc377 | 472 | for (;;) |
b3cbe40f | 473 | { |
506fc377 | 474 | /* store away any old lookahead character */ |
e9937bb7 | 475 | if (c != NOCHAR && !bslashmode) |
506fc377 | 476 | { |
f12f79be | 477 | /* see if there is room */ |
148ea694 | 478 | if (q >= &pvpbuf[pvpbsize - 5]) |
506fc377 | 479 | { |
b6edea3d | 480 | usrerr("553 Address too long"); |
10f9a8a5 EA |
481 | if (strlen(addr) > MAXNAME) |
482 | addr[MAXNAME] = '\0'; | |
77779257 | 483 | returnnull: |
9e2cf26f EA |
484 | if (delimptr != NULL) |
485 | *delimptr = p; | |
fba945cd | 486 | CurEnv->e_to = saveto; |
506fc377 EA |
487 | return (NULL); |
488 | } | |
f12f79be EA |
489 | |
490 | /* squirrel it away */ | |
506fc377 EA |
491 | *q++ = c; |
492 | } | |
493 | ||
494 | /* read a new input character */ | |
495 | c = *p++; | |
422bed79 | 496 | if (c == '\0') |
97a521ff EA |
497 | { |
498 | /* diagnose and patch up bad syntax */ | |
499 | if (state == QST) | |
500 | { | |
ec14f23c | 501 | usrerr("653 Unbalanced '\"'"); |
97a521ff EA |
502 | c = '"'; |
503 | } | |
504 | else if (cmntcnt > 0) | |
505 | { | |
ec14f23c | 506 | usrerr("653 Unbalanced '('"); |
97a521ff EA |
507 | c = ')'; |
508 | } | |
509 | else if (anglecnt > 0) | |
510 | { | |
511 | c = '>'; | |
ec14f23c | 512 | usrerr("653 Unbalanced '<'"); |
97a521ff EA |
513 | } |
514 | else | |
515 | break; | |
516 | ||
517 | p--; | |
518 | } | |
422bed79 EA |
519 | else if (c == delim && anglecnt <= 0 && |
520 | cmntcnt <= 0 && state != QST) | |
521 | break; | |
f12f79be | 522 | |
506fc377 EA |
523 | if (tTd(22, 101)) |
524 | printf("c=%c, s=%d; ", c, state); | |
506fc377 | 525 | |
d6a28dd8 EA |
526 | /* chew up special characters */ |
527 | *q = '\0'; | |
528 | if (bslashmode) | |
529 | { | |
ff54f632 EA |
530 | bslashmode = FALSE; |
531 | ||
2e3062fe | 532 | /* kludge \! for naive users */ |
5d41b806 | 533 | if (cmntcnt > 0) |
ff54f632 | 534 | { |
5d41b806 | 535 | c = NOCHAR; |
ff54f632 EA |
536 | continue; |
537 | } | |
538 | else if (c != '!' || state == QST) | |
539 | { | |
85c61679 | 540 | *q++ = '\\'; |
ff54f632 EA |
541 | continue; |
542 | } | |
d6a28dd8 | 543 | } |
048264ae EA |
544 | |
545 | if (c == '\\') | |
d6a28dd8 EA |
546 | { |
547 | bslashmode = TRUE; | |
d6a28dd8 | 548 | } |
fd6cfc53 | 549 | if (state == QST) |
63a35680 EA |
550 | { |
551 | /* do nothing, just avoid next clauses */ | |
552 | } | |
506fc377 | 553 | else if (c == '(') |
cdb17311 | 554 | { |
506fc377 EA |
555 | cmntcnt++; |
556 | c = NOCHAR; | |
cdb17311 | 557 | } |
506fc377 | 558 | else if (c == ')') |
d6a28dd8 | 559 | { |
506fc377 | 560 | if (cmntcnt <= 0) |
d6a28dd8 | 561 | { |
ec14f23c | 562 | usrerr("653 Unbalanced ')'"); |
64b7394c | 563 | c = NOCHAR; |
d6a28dd8 | 564 | } |
506fc377 EA |
565 | else |
566 | cmntcnt--; | |
d6a28dd8 | 567 | } |
506fc377 EA |
568 | else if (cmntcnt > 0) |
569 | c = NOCHAR; | |
e93460a9 EA |
570 | else if (c == '<') |
571 | anglecnt++; | |
572 | else if (c == '>') | |
573 | { | |
574 | if (anglecnt <= 0) | |
575 | { | |
ec14f23c | 576 | usrerr("653 Unbalanced '>'"); |
64b7394c | 577 | c = NOCHAR; |
e93460a9 | 578 | } |
64b7394c EA |
579 | else |
580 | anglecnt--; | |
e93460a9 | 581 | } |
2bee003d | 582 | else if (delim == ' ' && isascii(c) && isspace(c)) |
926671ee | 583 | c = ' '; |
7b955214 EA |
584 | else if (c == ':' && !CurEnv->e_oldstyle) |
585 | { | |
586 | /* consume characters until a semicolon */ | |
587 | while (*p != '\0' && *p != ';') | |
588 | p++; | |
589 | if (*p == '\0') | |
590 | usrerr("Unbalanced ':...;' group spec"); | |
591 | else | |
592 | p++; | |
593 | c = ' '; | |
594 | } | |
d6a28dd8 | 595 | |
fd6cfc53 EA |
596 | else if (c == ';') /* semicolons are not tokens */ |
597 | c = NOCHAR; | |
598 | ||
506fc377 EA |
599 | if (c == NOCHAR) |
600 | continue; | |
d6a28dd8 | 601 | |
506fc377 | 602 | /* see if this is end of input */ |
f115fb3a | 603 | if (c == delim && anglecnt <= 0 && state != QST) |
506fc377 | 604 | break; |
d6a28dd8 | 605 | |
506fc377 | 606 | newstate = StateTab[state][toktype(c)]; |
506fc377 EA |
607 | if (tTd(22, 101)) |
608 | printf("ns=%02o\n", newstate); | |
506fc377 EA |
609 | state = newstate & TYPE; |
610 | if (bitset(M, newstate)) | |
611 | c = NOCHAR; | |
612 | if (bitset(B, newstate)) | |
d6a28dd8 | 613 | break; |
b3cbe40f | 614 | } |
d6a28dd8 EA |
615 | |
616 | /* new token */ | |
506fc377 | 617 | if (tok != q) |
2a119b55 | 618 | { |
506fc377 | 619 | *q++ = '\0'; |
506fc377 | 620 | if (tTd(22, 36)) |
b3cbe40f | 621 | { |
506fc377 EA |
622 | printf("tok="); |
623 | xputs(tok); | |
03388044 | 624 | (void) putchar('\n'); |
b3cbe40f | 625 | } |
506fc377 | 626 | if (avp >= &av[MAXATOM]) |
b3cbe40f | 627 | { |
b6edea3d | 628 | syserr("553 prescan: too many tokens"); |
77779257 EA |
629 | goto returnnull; |
630 | } | |
631 | if (q - tok > MAXNAME) | |
632 | { | |
633 | syserr("553 prescan: token too long"); | |
634 | goto returnnull; | |
b3cbe40f | 635 | } |
506fc377 | 636 | *avp++ = tok; |
b3cbe40f | 637 | } |
e93460a9 | 638 | } while (c != '\0' && (c != delim || anglecnt > 0)); |
d6a28dd8 | 639 | *avp = NULL; |
9e2cf26f EA |
640 | p--; |
641 | if (delimptr != NULL) | |
642 | *delimptr = p; | |
97a521ff EA |
643 | if (tTd(22, 12)) |
644 | { | |
645 | printf("prescan==>"); | |
646 | printav(av); | |
647 | } | |
fba945cd | 648 | CurEnv->e_to = saveto; |
6cb17374 | 649 | if (av[0] == NULL) |
c2d0b04b EA |
650 | { |
651 | if (tTd(22, 1)) | |
652 | printf("prescan: null leading token\n"); | |
6cb17374 | 653 | return (NULL); |
c2d0b04b | 654 | } |
1c4d5753 | 655 | return (av); |
d6a28dd8 EA |
656 | } |
657 | \f/* | |
d6a28dd8 EA |
658 | ** REWRITE -- apply rewrite rules to token vector. |
659 | ** | |
2258fda6 EA |
660 | ** This routine is an ordered production system. Each rewrite |
661 | ** rule has a LHS (called the pattern) and a RHS (called the | |
662 | ** rewrite); 'rwr' points the the current rewrite rule. | |
663 | ** | |
664 | ** For each rewrite rule, 'avp' points the address vector we | |
665 | ** are trying to match against, and 'pvp' points to the pattern. | |
792a6b53 | 666 | ** If pvp points to a special match value (MATCHZANY, MATCHANY, |
9f39d7cd EA |
667 | ** MATCHONE, MATCHCLASS, MATCHNCLASS) then the address in avp |
668 | ** matched is saved away in the match vector (pointed to by 'mvp'). | |
2258fda6 EA |
669 | ** |
670 | ** When a match between avp & pvp does not match, we try to | |
9f39d7cd | 671 | ** back out. If we back up over MATCHONE, MATCHCLASS, or MATCHNCLASS |
2258fda6 | 672 | ** we must also back out the match in mvp. If we reach a |
792a6b53 EA |
673 | ** MATCHANY or MATCHZANY we just extend the match and start |
674 | ** over again. | |
2258fda6 EA |
675 | ** |
676 | ** When we finally match, we rewrite the address vector | |
677 | ** and try over again. | |
678 | ** | |
d6a28dd8 EA |
679 | ** Parameters: |
680 | ** pvp -- pointer to token vector. | |
1ac3479f | 681 | ** ruleset -- the ruleset to use for rewriting. |
b141a9b6 | 682 | ** reclevel -- recursion level (to catch loops). |
1ac3479f | 683 | ** e -- the current envelope. |
d6a28dd8 EA |
684 | ** |
685 | ** Returns: | |
d1db7a89 EA |
686 | ** A status code. If EX_TEMPFAIL, higher level code should |
687 | ** attempt recovery. | |
d6a28dd8 EA |
688 | ** |
689 | ** Side Effects: | |
690 | ** pvp is modified. | |
691 | */ | |
692 | ||
fd6cfc53 EA |
693 | # define OP_NONZLEN 00001 |
694 | # define OP_VARLEN 00002 | |
695 | # define OP_CLASS 00004 | |
696 | # define OP_EXACT 00010 | |
697 | ||
d6a28dd8 EA |
698 | struct match |
699 | { | |
54e8e18d EA |
700 | char **first; /* first token matched */ |
701 | char **last; /* last token matched */ | |
9d6aecfd | 702 | char **pattern; /* pointer to pattern */ |
fd6cfc53 EA |
703 | char **source; /* left hand source operand */ |
704 | char flags; /* attributes of this operator */ | |
d6a28dd8 EA |
705 | }; |
706 | ||
54e8e18d | 707 | # define MAXMATCH 9 /* max params per rewrite */ |
fd6cfc53 EA |
708 | # define MAX_CONTROL ' ' |
709 | ||
69bdb647 EA |
710 | # ifndef MAXRULERECURSION |
711 | # define MAXRULERECURSION 50 /* max recursion depth */ | |
712 | # endif | |
fd6cfc53 EA |
713 | static char control_opts[MAX_CONTROL]; |
714 | ||
69bdb647 | 715 | |
d1db7a89 | 716 | int |
fd6cfc53 EA |
717 | static char control_init_data[] = { |
718 | MATCHZANY, OP_VARLEN, | |
719 | MATCHONE, OP_NONZLEN, | |
720 | MATCHANY, OP_VARLEN|OP_NONZLEN, | |
721 | #ifdef MACVALUE | |
722 | MACVALUE, OP_EXACT, | |
723 | #endif /* MACVALUE */ | |
724 | MATCHNCLASS, OP_NONZLEN, | |
725 | MATCHCLASS, OP_NONZLEN|OP_VARLEN|OP_CLASS, | |
fd6cfc53 | 726 | }; |
d6a28dd8 | 727 | |
fd6cfc53 | 728 | static int nrw; |
d6a28dd8 | 729 | |
fd6cfc53 | 730 | void |
b141a9b6 | 731 | rewrite(pvp, ruleset, reclevel, e) |
d6a28dd8 | 732 | char **pvp; |
f65e7ded | 733 | int ruleset; |
b141a9b6 | 734 | int reclevel; |
1ac3479f | 735 | register ENVELOPE *e; |
fd6cfc53 EA |
736 | { |
737 | nrw = 0; | |
738 | _rewrite(pvp, ruleset); | |
739 | } | |
740 | ||
741 | static void | |
742 | _rewrite(pvp, ruleset) | |
743 | char **pvp; | |
744 | int ruleset; | |
d6a28dd8 EA |
745 | { |
746 | register char *ap; /* address pointer */ | |
747 | register char *rp; /* rewrite pointer */ | |
748 | register char **avp; /* address vector pointer */ | |
749 | register char **rvp; /* rewrite vector pointer */ | |
792a6b53 EA |
750 | register struct match *mlp; /* cur ptr into mlist */ |
751 | register struct rewrite *rwr; /* pointer to current rewrite rule */ | |
75df37ee | 752 | int ruleno; /* current rule number */ |
d1db7a89 | 753 | int rstat = EX_OK; /* return status */ |
1d91f401 | 754 | int loopcount; |
41173b8f EA |
755 | int subr; /* subroutine number if >= 0 */ |
756 | bool dolookup; /* do host aliasing */ | |
d6a28dd8 | 757 | char *npvp[MAXATOM+1]; /* temporary space for rebuild */ |
fd6cfc53 EA |
758 | char tokbuf[MAXNAME+1]; /* for concatenated class tokens */ |
759 | int nloops, nmatches = 0; /* for looping rule checks */ | |
760 | struct rewrite *prev_rwr; /* pointer to previous rewrite rule */ | |
761 | struct match mlist[MAXMATCH+1]; /* stores match on LHS */ | |
762 | struct match *old_mlp; /* to save our place */ | |
763 | bool extend_match; /* extend existing match during backup */ | |
764 | ||
25cc8f69 | 765 | if (OpMode == MD_TEST || tTd(21, 1)) |
d6a28dd8 | 766 | { |
b726abe3 | 767 | printf("rewrite: ruleset %2d input:", ruleset); |
fd6cfc53 | 768 | printcav(pvp); |
d6a28dd8 | 769 | } |
f62b79ae EA |
770 | if (ruleset < 0 || ruleset >= MAXRWSETS) |
771 | { | |
b6edea3d | 772 | syserr("554 rewrite: illegal ruleset number %d", ruleset); |
d1db7a89 | 773 | return EX_CONFIG; |
f62b79ae | 774 | } |
69bdb647 | 775 | if (reclevel++ > MAXRULERECURSION) |
b141a9b6 EA |
776 | { |
777 | syserr("rewrite: infinite recursion, ruleset %d", ruleset); | |
778 | return EX_CONFIG; | |
779 | } | |
e93460a9 | 780 | if (pvp == NULL) |
d1db7a89 | 781 | return EX_USAGE; |
d6a28dd8 | 782 | |
fd6cfc53 EA |
783 | if (++nrw > 100) |
784 | { | |
785 | char buf[MAXLINE]; | |
786 | ||
787 | buf[0] = buf[MAXLINE-1] = 0; | |
788 | while (*pvp) | |
789 | (void) strncat(buf, *pvp++, sizeof buf); | |
790 | syserr("address causes rewrite loop: <%s>", buf); | |
791 | return; | |
792 | } | |
793 | ||
794 | /* Be sure to recognize first rule as new */ | |
795 | prev_rwr = NULL; | |
796 | ||
d6a28dd8 | 797 | /* |
fd6cfc53 | 798 | ** Run through the list of rewrite rules, applying any that match. |
d6a28dd8 EA |
799 | */ |
800 | ||
75df37ee | 801 | ruleno = 1; |
1d91f401 | 802 | loopcount = 0; |
f65e7ded | 803 | for (rwr = RewriteRules[ruleset]; rwr != NULL; ) |
d6a28dd8 | 804 | { |
9678c96d | 805 | if (tTd(21, 12)) |
d6a28dd8 | 806 | { |
b00e6882 | 807 | printf("-----trying rule:"); |
fd6cfc53 EA |
808 | printcav(rwr->r_lhs); |
809 | } | |
810 | ||
811 | /* | |
812 | ** Set up the match list. This is done once for each | |
813 | ** rule. If a rule is used repeatedly, the list need not | |
814 | ** be set up the next time. | |
815 | */ | |
816 | ||
817 | if (rwr != prev_rwr) | |
818 | { | |
819 | prev_rwr = rwr; | |
820 | for (rvp = rwr->r_lhs, mlp = mlist; | |
821 | *rvp && (mlp < &mlist[MAXMATCH]); rvp++) | |
822 | { | |
823 | mlp->flags = ((unsigned char) **rvp >= MAX_CONTROL) ? | |
824 | 0 : control_opts[**rvp] ; | |
825 | if (mlp->flags) | |
826 | { | |
827 | mlp->source = rvp; | |
828 | mlp++; | |
829 | } | |
830 | } | |
831 | if (*rvp) | |
832 | { | |
833 | syserr("Too many variables on LHS in ruleset %d", ruleset); | |
834 | return; | |
835 | } | |
836 | mlp->source = rvp; | |
837 | ||
838 | /* Make sure end marker is initialized */ | |
839 | mlp->flags = 0; | |
d6a28dd8 | 840 | } |
ecf90b7d | 841 | |
d6a28dd8 | 842 | /* try to match on this rule */ |
54e8e18d | 843 | mlp = mlist; |
fd6cfc53 | 844 | |
792a6b53 EA |
845 | rvp = rwr->r_lhs; |
846 | avp = pvp; | |
fd6cfc53 EA |
847 | nloops = 0; |
848 | extend_match = FALSE; | |
849 | ||
75df37ee | 850 | if (++loopcount > 100) |
b3cbe40f | 851 | { |
fd6cfc53 EA |
852 | if (nloops++ > 400) |
853 | { | |
854 | syserr("Looping on ruleset %d, rule %d", | |
855 | ruleset, rwr-RewriteRules[ruleset]); | |
856 | mlp = mlist - 1; /* force rule failure */ | |
857 | break; | |
858 | } | |
75df37ee EA |
859 | syserr("554 Infinite loop in ruleset %d, rule %d", |
860 | ruleset, ruleno); | |
861 | if (tTd(21, 1)) | |
72f91c2e | 862 | { |
f62b79ae EA |
863 | printf("workspace: "); |
864 | printav(pvp); | |
72f91c2e | 865 | } |
75df37ee EA |
866 | break; |
867 | } | |
868 | ||
869 | while ((ap = *avp) != NULL || *rvp != NULL) | |
870 | { | |
d6a28dd8 | 871 | rp = *rvp; |
fd6cfc53 | 872 | |
792a6b53 EA |
873 | if (tTd(21, 35)) |
874 | { | |
9d6aecfd | 875 | printf("ADVANCE rp="); |
792a6b53 | 876 | xputs(rp); |
5a1d901b | 877 | printf(", ap="); |
511c3bad | 878 | xputs(ap); |
b00e6882 | 879 | printf("\n"); |
792a6b53 | 880 | } |
fd6cfc53 EA |
881 | |
882 | if (extend_match) | |
883 | extend_match = FALSE; | |
884 | else | |
b3cbe40f | 885 | { |
fd6cfc53 EA |
886 | mlp->first = avp; |
887 | mlp->last = mlp->flags == 0 || (mlp->flags & OP_NONZLEN) ? | |
888 | avp + 1 : avp; | |
889 | } | |
890 | ||
891 | if (rp == NULL) | |
d6a28dd8 | 892 | /* end-of-pattern before end-of-address */ |
792a6b53 | 893 | goto backup; |
fd6cfc53 EA |
894 | |
895 | /* Premature end of address */ | |
896 | if (ap == NULL && avp != mlp->last) | |
897 | goto backup; | |
898 | ||
899 | /* | |
900 | ** Simplest case - exact token comparison between | |
901 | ** pattern and address. Such a match is not saved | |
902 | ** in mlp. | |
903 | */ | |
904 | ||
905 | if (rvp < mlp->source) | |
792a6b53 | 906 | { |
fd6cfc53 EA |
907 | if (ap == NULL || strcasecmp(ap, rp)) |
908 | goto backup; | |
909 | rvp++; | |
910 | avp++; | |
911 | continue; | |
d6a28dd8 EA |
912 | } |
913 | ||
fd6cfc53 EA |
914 | #ifdef MACVALUE |
915 | /* | |
916 | ** This is special case handled. The match is exact, | |
917 | ** but might span zero or more address tokens. The | |
918 | ** result is saved in mlp. | |
919 | */ | |
920 | ||
921 | if (*rp == MACVALUE) | |
d6a28dd8 | 922 | { |
fd6cfc53 EA |
923 | int len; |
924 | rp = macvalue(rp[1], CurEnv); | |
13834bfc | 925 | |
fd6cfc53 EA |
926 | if (rp) |
927 | while (*rp) | |
928 | { | |
929 | if (*avp == NULL || strncasecmp(rp,*avp,len = strlen(*avp))) | |
930 | goto backup; | |
931 | rp += len; | |
932 | avp++; | |
933 | } | |
934 | mlp->last = avp; | |
935 | rvp++; | |
936 | mlp++; | |
937 | continue; | |
938 | } | |
939 | #endif /* MACVALUE */ | |
940 | ||
941 | /* | |
942 | ** All other matches are saved in mlp. Initially | |
943 | ** assume they match at the shortest possible length | |
944 | ** for this pattern. Variable patterns will be | |
945 | ** extended later as needed. | |
946 | */ | |
947 | ||
948 | /* Fixed length first */ | |
949 | if (!(mlp->flags & OP_VARLEN)) | |
950 | { | |
951 | switch (*rp) | |
9f39d7cd | 952 | { |
fd6cfc53 | 953 | break; |
fd6cfc53 | 954 | } |
792a6b53 | 955 | |
fd6cfc53 EA |
956 | avp = mlp->last; |
957 | rvp++; | |
54e8e18d | 958 | mlp++; |
1bca74dd EA |
959 | break; |
960 | ||
a42056e7 | 961 | case MATCHZERO: |
1bca74dd | 962 | /* match zero tokens */ |
fd6cfc53 EA |
963 | continue; |
964 | } | |
965 | ||
1ac3479f EA |
966 | case MACRODEXPAND: |
967 | /* | |
968 | ** Match against run-time macro. | |
969 | ** This algorithm is broken for the | |
970 | ** general case (no recursive macros, | |
971 | ** improper tokenization) but should | |
972 | ** work for the usual cases. | |
973 | */ | |
974 | ||
975 | ap = macvalue(rp[1], e); | |
976 | mlp->first = avp; | |
977 | if (tTd(21, 2)) | |
978 | printf("rewrite: LHS $&%c => \"%s\"\n", | |
979 | rp[1], | |
980 | ap == NULL ? "(NULL)" : ap); | |
981 | ||
982 | if (ap == NULL) | |
983 | break; | |
54d35e43 | 984 | while (*ap != '\0') |
1ac3479f EA |
985 | { |
986 | if (*avp == NULL || | |
987 | strncasecmp(ap, *avp, strlen(*avp)) != 0) | |
988 | { | |
989 | /* no match */ | |
990 | avp = mlp->first; | |
991 | goto backup; | |
992 | } | |
993 | ap += strlen(*avp++); | |
994 | } | |
995 | ||
996 | /* match */ | |
997 | break; | |
998 | ||
fd6cfc53 EA |
999 | /* |
1000 | ** We now have a variable length item. It could | |
1001 | ** be $+ or $* in which case no special checking | |
1002 | ** is needed. But a class match such as $=x must | |
1003 | ** be verified. | |
1004 | ** | |
1005 | ** As a speedup, if a variable length item is | |
1006 | ** followed by a plain character token, we initially | |
1007 | ** extend the match to the first such token we find. | |
1008 | ** If the required character token cannot be found, | |
1009 | ** we fail the match at this point. | |
1010 | */ | |
1011 | ||
1012 | avp = mlp->last; | |
1013 | ||
1014 | /* If next token is char token */ | |
1015 | if (&rvp[1] < mlp[1].source) | |
1016 | { | |
1017 | while (*avp && strcasecmp(*avp, rvp[1])) | |
1018 | avp++; | |
1019 | ||
1020 | /* | |
1021 | ** If we can't find the proper ending token, | |
1022 | ** leave avp point to NULL. This indicates | |
1023 | ** we have run out of address tokens. It is | |
1024 | ** pointless to advance the beginning of this | |
1025 | ** match and retry. | |
1026 | */ | |
13834bfc | 1027 | |
fd6cfc53 | 1028 | if (*avp == NULL) |
792a6b53 | 1029 | goto backup; |
fd6cfc53 EA |
1030 | mlp->last = avp; |
1031 | } | |
1032 | else if (rvp[1] == NULL) | |
1033 | /* next token is end of address */ | |
1034 | { | |
1035 | while (*avp) | |
1036 | avp++; | |
1037 | mlp->last = avp; | |
1038 | } | |
1039 | ||
1040 | if (mlp->flags & OP_CLASS) | |
1041 | { | |
1042 | register char *cp = tokbuf; | |
1043 | ||
1044 | avp = mlp->first; | |
1045 | strcpy(cp, *avp); | |
54e8e18d | 1046 | avp++; |
fd6cfc53 EA |
1047 | for (;;) |
1048 | { | |
1049 | while (avp < mlp->last) | |
1050 | { | |
1051 | while (*cp) | |
1052 | cp++; | |
1053 | strcpy(cp, *avp); | |
1054 | avp++; | |
1055 | } | |
1056 | switch (*rp) | |
1057 | { | |
1058 | register STAB *s; | |
1059 | ||
1060 | case MATCHCLASS: | |
1061 | s = stab(tokbuf, ST_CLASS, ST_FIND); | |
1062 | if (s != NULL && bitnset(rp[1], s->s_class)) | |
1063 | goto have_match; | |
1064 | break; | |
fd6cfc53 EA |
1065 | } |
1066 | ||
1067 | /* | |
1068 | ** Class match initially failed. | |
1069 | ** Extend the tentative match. | |
1070 | ** Again, if followed by a character | |
1071 | ** token, extend all the way to that | |
1072 | ** token before checking. | |
1073 | */ | |
1074 | ||
1075 | if (*avp) | |
1076 | { | |
1077 | (mlp->last)++; | |
1078 | if (&rvp[1] < mlp[1].source) | |
1079 | { | |
1080 | while (*(mlp->last) && strcasecmp(*(mlp->last), rvp[1])) | |
1081 | (mlp->last)++; | |
1082 | if (*(mlp->last) == NULL) | |
1083 | avp = mlp->last; | |
1084 | } | |
1085 | } | |
1086 | if (*avp == NULL) | |
1087 | { | |
1088 | /* | |
1089 | ** We could not find the | |
1090 | ** ending token. But we had | |
1091 | ** found ending tokens before. | |
1092 | ** A match is still plausible | |
1093 | ** if the start of the | |
1094 | ** tentative match is advanced. | |
1095 | ** Hence we must not leave avp | |
1096 | ** pointing to NULL. | |
1097 | */ | |
1098 | avp = mlp->first; | |
1099 | goto backup; | |
1100 | } | |
1101 | } | |
d6a28dd8 EA |
1102 | } |
1103 | ||
fd6cfc53 | 1104 | have_match: |
d6a28dd8 | 1105 | rvp++; |
fd6cfc53 | 1106 | mlp++; |
d6a28dd8 EA |
1107 | continue; |
1108 | ||
fd6cfc53 EA |
1109 | backup: |
1110 | /* We failed to match. mlp marks point of failure */ | |
1111 | ||
1112 | /* | |
1113 | ** There is a special case when we have exhausted | |
1114 | ** the address, but have not exhausted the pattern. | |
1115 | ** Under normal circumstances we could consider the | |
1116 | ** failure permanent, since extending the number of | |
1117 | ** address tokens matched by a '$+' or a '$*' will | |
1118 | ** only worsen the situation. | |
1119 | ** | |
1120 | ** There is an exception, however. It is possible | |
1121 | ** that we have matched a class token, say '$=x', | |
1122 | ** with three or more tokens. Extending a '$+' say, | |
1123 | ** which precedes the '$=x' will move the beginning | |
1124 | ** of the '$=x' match to the right, but it might match | |
1125 | ** a smaller number of tokens then, possibly | |
1126 | ** correcting the mismatch. | |
1127 | ** | |
1128 | ** Thus in this case we initially back up to the | |
1129 | ** $=x which matches three or more tokens. | |
1130 | */ | |
1131 | ||
1132 | if (*avp == NULL) | |
d6a28dd8 | 1133 | { |
9d6aecfd | 1134 | rvp = mlp->pattern; |
fd6cfc53 | 1135 | while (--mlp > mlist) |
54e8e18d | 1136 | { |
fd6cfc53 EA |
1137 | if ((mlp->flags & OP_CLASS) && |
1138 | mlp->last > 2 + mlp->first) | |
1139 | break; | |
d6a28dd8 EA |
1140 | } |
1141 | } | |
1142 | ||
fd6cfc53 EA |
1143 | /* |
1144 | ** Now backup till we find a match with a pattern | |
1145 | ** whose length is extendable, and extend that. | |
1146 | */ | |
1147 | ||
1148 | mlp--; | |
1149 | while (mlp >= mlist && !(mlp->flags & OP_VARLEN)) | |
1150 | mlp--; | |
1151 | ||
1152 | /* Total failure to match */ | |
1153 | if (mlp < mlist) | |
d6a28dd8 | 1154 | break; |
fd6cfc53 EA |
1155 | |
1156 | avp = ++(mlp->last); | |
1157 | rvp = mlp->source; | |
1158 | ||
1159 | /* | |
1160 | ** We have found a backup point. Normally we would | |
1161 | ** increase the matched amount by one token, and | |
1162 | ** continue from the next item in the pattern. But | |
1163 | ** there are two special cases. If this is a | |
1164 | ** class-type match (OP_CLASS), we must test the | |
1165 | ** validity of the extended match. If this pattern | |
1166 | ** item is directly followed by a character token, it | |
1167 | ** is worth going back and locating the next such | |
1168 | ** character token before we continue on. | |
1169 | */ | |
1170 | if ((mlp->flags & OP_CLASS) || (&rvp[1] < mlp[1].source)) | |
1171 | { | |
1172 | avp = mlp->first; | |
1173 | extend_match = TRUE; | |
1174 | } | |
1175 | else | |
1176 | { | |
1177 | mlp++; | |
1178 | rvp++; | |
b3cbe40f | 1179 | } |
b3cbe40f | 1180 | } |
d6a28dd8 EA |
1181 | |
1182 | /* | |
fd6cfc53 | 1183 | ** See if we successfully matched. |
d6a28dd8 EA |
1184 | */ |
1185 | ||
fd6cfc53 | 1186 | if (mlp < mlist) |
d6a28dd8 | 1187 | { |
7338e3d4 EA |
1188 | if (tTd(21, 10)) |
1189 | printf("----- rule fails\n"); | |
7338e3d4 | 1190 | rwr = rwr->r_next; |
75df37ee | 1191 | ruleno++; |
1d91f401 | 1192 | loopcount = 0; |
fd6cfc53 EA |
1193 | nmatches = 0; |
1194 | continue; | |
1195 | } | |
1196 | ||
1197 | if (nmatches++ > 200) | |
1198 | { | |
1199 | syserr("Loop in ruleset %d, rule %d (too many matches)", | |
1200 | ruleset, rwr - RewriteRules[ruleset]); | |
1201 | rwr = rwr->r_next; | |
1202 | nmatches = 0; | |
7338e3d4 EA |
1203 | continue; |
1204 | } | |
d6a28dd8 | 1205 | |
7338e3d4 | 1206 | rvp = rwr->r_rhs; |
7338e3d4 EA |
1207 | if (tTd(21, 12)) |
1208 | { | |
1209 | printf("-----rule matches:"); | |
fd6cfc53 | 1210 | printcav(rvp); |
7338e3d4 | 1211 | } |
7338e3d4 EA |
1212 | |
1213 | rp = *rvp; | |
2bee003d | 1214 | if ((*rp & 0377) == CANONUSER) |
7338e3d4 EA |
1215 | { |
1216 | rvp++; | |
1217 | rwr = rwr->r_next; | |
75df37ee | 1218 | ruleno++; |
1d91f401 | 1219 | loopcount = 0; |
fd6cfc53 | 1220 | nmatches = 0; |
7338e3d4 | 1221 | } |
2bee003d | 1222 | else if ((*rp & 0377) == CANONHOST) |
7338e3d4 EA |
1223 | { |
1224 | rvp++; | |
1225 | rwr = NULL; | |
1226 | } | |
2bee003d | 1227 | else if ((*rp & 0377) == CANONNET) |
7338e3d4 EA |
1228 | rwr = NULL; |
1229 | ||
1230 | /* substitute */ | |
41173b8f | 1231 | dolookup = FALSE; |
7338e3d4 EA |
1232 | for (avp = npvp; *rvp != NULL; rvp++) |
1233 | { | |
1234 | register struct match *m; | |
1235 | register char **pp; | |
792a6b53 | 1236 | |
7338e3d4 | 1237 | rp = *rvp; |
41173b8f EA |
1238 | |
1239 | /* check to see if we should do a lookup */ | |
1240 | if (*rp == MATCHLOOKUP) | |
1241 | dolookup = TRUE; | |
1242 | ||
1243 | /* see if there is substitution here */ | |
fd6cfc53 | 1244 | if (*rp == MATCHREPL && rp[1] >= '1' && rp[1] <= '9') |
d6a28dd8 | 1245 | { |
217a0102 EA |
1246 | /* substitute from LHS */ |
1247 | m = &mlist[rp[1] - '1']; | |
f62b79ae | 1248 | if (m < mlist || m >= mlp) |
d6a28dd8 | 1249 | { |
41173b8f | 1250 | toolong: |
fd6cfc53 EA |
1251 | syserr("rewrite: ruleset %d: replacement #%c out of bounds", |
1252 | ruleset, rp[1]); | |
d1db7a89 | 1253 | return EX_CONFIG; |
7338e3d4 | 1254 | } |
217a0102 EA |
1255 | if (tTd(21, 15)) |
1256 | { | |
1257 | printf("$%c:", rp[1]); | |
1258 | pp = m->first; | |
fd6cfc53 | 1259 | while (pp < m->last) |
217a0102 EA |
1260 | { |
1261 | printf(" %x=\"", *pp); | |
1262 | (void) fflush(stdout); | |
1263 | printf("%s\"", *pp++); | |
1264 | } | |
1265 | printf("\n"); | |
1266 | } | |
7338e3d4 | 1267 | pp = m->first; |
fd6cfc53 | 1268 | while (pp < m->last) |
e96bade8 | 1269 | { |
217a0102 | 1270 | if (avp >= &npvp[MAXATOM]) |
fd6cfc53 | 1271 | goto toolong; |
217a0102 | 1272 | *avp++ = *pp++; |
e96bade8 | 1273 | } |
d6a28dd8 | 1274 | } |
217a0102 | 1275 | else |
45ecb1bf | 1276 | { |
217a0102 | 1277 | /* vanilla replacement */ |
7338e3d4 | 1278 | if (avp >= &npvp[MAXATOM]) |
41173b8f | 1279 | goto toolong; |
fd6cfc53 EA |
1280 | #ifdef MACVALUE |
1281 | if (*rp == MACVALUE) | |
1282 | { | |
1283 | char *p = macvalue(rp[1], CurEnv); | |
1284 | ||
1285 | if (tTd(21, 2)) | |
1286 | printf("expanding runtime macro '%c' to \"%s\"\n", | |
1287 | rp[1], p ? p : "(null)"); | |
1288 | if (p) | |
1289 | *avp++ = p; | |
1290 | } | |
1291 | else | |
1292 | #endif /* MACVALUE */ | |
1293 | *avp++ = rp; | |
45ecb1bf | 1294 | } |
7338e3d4 EA |
1295 | } |
1296 | *avp++ = NULL; | |
41173b8f | 1297 | |
217a0102 | 1298 | /* |
42fa5d67 | 1299 | ** Check for any hostname/keyword lookups. |
217a0102 EA |
1300 | */ |
1301 | ||
1302 | for (rvp = npvp; *rvp != NULL; rvp++) | |
1303 | { | |
fd6cfc53 | 1304 | char **hbrvp, **ubrvp; |
217a0102 EA |
1305 | char **xpvp; |
1306 | int trsize; | |
42fa5d67 EA |
1307 | char *replac; |
1308 | int endtoken; | |
1309 | STAB *map; | |
1310 | char *mapname; | |
1311 | char **key_rvp; | |
1312 | char **arg_rvp; | |
1313 | char **default_rvp; | |
fd6cfc53 | 1314 | char hbuf[MAXNAME + 1], ubuf[MAXNAME + 1]; |
217a0102 | 1315 | char *pvpb1[MAXATOM + 1]; |
5a4c03c6 | 1316 | char *argvect[10]; |
7ac75266 | 1317 | char pvpbuf[PSBUFSIZE]; |
f0b4483c | 1318 | char *nullpvp[1]; |
fd6cfc53 EA |
1319 | bool match, defaultpart; |
1320 | char begintype; | |
1321 | char db = '\0'; | |
217a0102 | 1322 | |
2bee003d EA |
1323 | if ((**rvp & 0377) != HOSTBEGIN && |
1324 | (**rvp & 0377) != LOOKUPBEGIN) | |
217a0102 EA |
1325 | continue; |
1326 | ||
1327 | /* | |
42fa5d67 | 1328 | ** Got a hostname/keyword lookup. |
217a0102 EA |
1329 | ** |
1330 | ** This could be optimized fairly easily. | |
1331 | */ | |
1332 | ||
fd6cfc53 | 1333 | begintype = **rvp; |
217a0102 | 1334 | hbrvp = rvp; |
fd6cfc53 | 1335 | ubrvp = NULL; |
2bee003d | 1336 | if ((**rvp & 0377) == HOSTBEGIN) |
42fa5d67 EA |
1337 | { |
1338 | endtoken = HOSTEND; | |
1339 | mapname = "host"; | |
1340 | } | |
1341 | else | |
1342 | { | |
1343 | endtoken = LOOKUPEND; | |
1344 | mapname = *++rvp; | |
1345 | } | |
1346 | map = stab(mapname, ST_MAP, ST_FIND); | |
1347 | if (map == NULL) | |
b6edea3d | 1348 | syserr("554 rewrite: map %s not found", mapname); |
217a0102 EA |
1349 | |
1350 | /* extract the match part */ | |
42fa5d67 | 1351 | key_rvp = ++rvp; |
5a4c03c6 EA |
1352 | default_rvp = NULL; |
1353 | arg_rvp = argvect; | |
1354 | xpvp = NULL; | |
1355 | replac = pvpbuf; | |
2bee003d | 1356 | while (*rvp != NULL && (**rvp & 0377) != endtoken) |
42fa5d67 | 1357 | { |
2bee003d | 1358 | int nodetype = **rvp & 0377; |
5a4c03c6 EA |
1359 | |
1360 | if (nodetype != CANONHOST && nodetype != CANONUSER) | |
1361 | { | |
1362 | rvp++; | |
1363 | continue; | |
1364 | } | |
1365 | ||
1366 | *rvp++ = NULL; | |
1367 | ||
1368 | if (xpvp != NULL) | |
1369 | { | |
4fcb2bfa | 1370 | cataddr(xpvp, NULL, replac, |
1c7897ef EA |
1371 | &pvpbuf[sizeof pvpbuf] - replac, |
1372 | '\0'); | |
5a4c03c6 EA |
1373 | *++arg_rvp = replac; |
1374 | replac += strlen(replac) + 1; | |
1375 | xpvp = NULL; | |
1376 | } | |
1377 | switch (nodetype) | |
42fa5d67 EA |
1378 | { |
1379 | case CANONHOST: | |
5a4c03c6 | 1380 | xpvp = rvp; |
42fa5d67 EA |
1381 | break; |
1382 | ||
1383 | case CANONUSER: | |
42fa5d67 EA |
1384 | default_rvp = rvp; |
1385 | break; | |
42fa5d67 EA |
1386 | } |
1387 | } | |
217a0102 EA |
1388 | if (*rvp != NULL) |
1389 | *rvp++ = NULL; | |
5a4c03c6 EA |
1390 | if (xpvp != NULL) |
1391 | { | |
4fcb2bfa | 1392 | cataddr(xpvp, NULL, replac, |
1c7897ef EA |
1393 | &pvpbuf[sizeof pvpbuf] - replac, |
1394 | '\0'); | |
5a4c03c6 EA |
1395 | *++arg_rvp = replac; |
1396 | } | |
1397 | *++arg_rvp = NULL; | |
217a0102 EA |
1398 | |
1399 | /* save the remainder of the input string */ | |
1400 | trsize = (int) (avp - rvp + 1) * sizeof *rvp; | |
1401 | bcopy((char *) rvp, (char *) pvpb1, trsize); | |
1402 | ||
217a0102 | 1403 | /* append it to the token list */ |
fd6cfc53 EA |
1404 | for (avp = hbrvp; *xpvp != NULL; xpvp++) |
1405 | { | |
7ac75266 | 1406 | *avp++ = newstr(*xpvp); |
c0ef545b | 1407 | if (avp >= &npvp[MAXATOM]) |
217a0102 | 1408 | goto toolong; |
fd6cfc53 | 1409 | } |
7ac75266 | 1410 | } |
fd6cfc53 EA |
1411 | else |
1412 | avp = hbrvp; | |
217a0102 EA |
1413 | |
1414 | /* restore the old trailing information */ | |
fd6cfc53 EA |
1415 | rvp = avp - 1; |
1416 | for (xpvp = pvpb1; *xpvp != NULL; xpvp++) | |
1417 | { | |
c40bef63 | 1418 | if (defaultpart && **xpvp == HOSTEND) |
fd6cfc53 EA |
1419 | { |
1420 | defaultpart = FALSE; | |
1421 | rvp = avp - 1; | |
1422 | } | |
1423 | else if (!defaultpart || !match) | |
1424 | *avp++ = *xpvp; | |
c0ef545b | 1425 | if (avp >= &npvp[MAXATOM]) |
217a0102 | 1426 | goto toolong; |
fd6cfc53 EA |
1427 | } |
1428 | *avp++ = NULL; | |
7ac75266 | 1429 | |
fd6cfc53 | 1430 | /*break;*/ |
217a0102 EA |
1431 | } |
1432 | ||
1433 | /* | |
1434 | ** Check for subroutine calls. | |
fd6cfc53 | 1435 | ** Then copy vector back into original space. |
217a0102 EA |
1436 | */ |
1437 | ||
fd6cfc53 | 1438 | |
41173b8f EA |
1439 | else |
1440 | subr = -1; | |
1441 | ||
1442 | /* | |
1443 | ** Copy result back to original string. | |
1444 | */ | |
1445 | ||
1446 | for (avp = pvp; *rvp != NULL; rvp++) | |
1447 | *avp++ = *rvp; | |
1448 | *avp = NULL; | |
1449 | ||
1450 | /* | |
1451 | ** If this specified a subroutine, call it. | |
1452 | */ | |
1453 | ||
1454 | if (subr >= 0) | |
1455 | { | |
1456 | # ifdef DEBUG | |
1457 | if (tTd(21, 3)) | |
1458 | printf("-----callsubr %s\n", subr); | |
1459 | # endif DEBUG | |
1460 | rewrite(pvp, subr); | |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | ** Done with rewriting this pass. | |
1465 | */ | |
1466 | ||
7338e3d4 EA |
1467 | if (tTd(21, 4)) |
1468 | { | |
1469 | printf("rewritten as:"); | |
fd6cfc53 | 1470 | printcav(pvp); |
d6a28dd8 | 1471 | } |
b3cbe40f | 1472 | } |
b00e6882 | 1473 | |
25cc8f69 | 1474 | if (OpMode == MD_TEST || tTd(21, 1)) |
b00e6882 | 1475 | { |
b726abe3 | 1476 | printf("rewrite: ruleset %2d returns:", ruleset); |
fd6cfc53 | 1477 | printcav(pvp); |
b00e6882 | 1478 | } |
d1db7a89 EA |
1479 | |
1480 | return rstat; | |
d6a28dd8 EA |
1481 | } |
1482 | \f/* | |
fd6cfc53 EA |
1483 | ** CALLSUBR -- call subroutines in rewrite vector |
1484 | ** | |
1485 | ** Parameters: | |
1486 | ** pvp -- pointer to token vector. | |
1487 | ** | |
1488 | ** Returns: | |
1489 | ** none. | |
1490 | ** | |
1491 | ** Side Effects: | |
1492 | ** pvp is modified. | |
1493 | */ | |
1494 | ||
d30b0654 EA |
1495 | static int |
1496 | callsubr(pvp, reclevel, e) | |
1497 | char **pvp; | |
1498 | int reclevel; | |
1499 | ENVELOPE *e; | |
1500 | { | |
1501 | char **rvp; | |
1502 | int subr; | |
1503 | int stat; | |
1504 | STAB *s; | |
1505 | ||
1506 | for (; *pvp != NULL; pvp++) | |
1507 | { | |
1508 | if ((**pvp & 0377) == CALLSUBR && pvp[1] != NULL) | |
1509 | break; | |
1510 | } | |
1511 | if (*pvp == NULL) | |
1512 | return EX_OK; | |
1513 | ||
1514 | if (tTd(21, 3)) | |
1515 | printf("-----callsubr %s\n", pvp[1]); | |
1516 | ||
1517 | s = stab(pvp[1], ST_RULESET, ST_FIND); | |
1518 | if (s == NULL) | |
1519 | subr = atoi(pvp[1]); | |
1520 | else | |
1521 | subr = s->s_ruleset; | |
1522 | ||
1523 | /* | |
1524 | ** Take care of possible inner calls. | |
1525 | */ | |
1526 | ||
1527 | stat = callsubr(&pvp[2], reclevel, e); | |
1528 | if (stat != EX_OK) | |
1529 | return stat; | |
1530 | ||
1531 | /* | |
1532 | ** Move vector up over calling opcode. | |
1533 | */ | |
1534 | ||
1535 | for (rvp = &pvp[2]; *rvp != NULL; rvp++) | |
1536 | rvp[-2] = rvp[0]; | |
1537 | rvp[-2] = NULL; | |
1538 | ||
1539 | /* | |
1540 | ** Call inferior ruleset. | |
1541 | */ | |
1542 | ||
1543 | stat = rewrite(pvp, subr, reclevel, e); | |
1544 | return stat; | |
1545 | } | |
1546 | \f/* | |
1547 | ** CALLSUBR -- call subroutines in rewrite vector | |
1548 | ** | |
1549 | ** Parameters: | |
1550 | ** pvp -- pointer to token vector. | |
1551 | ** | |
1552 | ** Returns: | |
1553 | ** none. | |
1554 | ** | |
1555 | ** Side Effects: | |
1556 | ** pvp is modified. | |
1557 | */ | |
1558 | ||
fd6cfc53 EA |
1559 | static void |
1560 | callsubr(pvp) | |
1561 | char **pvp; | |
1562 | { | |
1563 | char **rvp; | |
1564 | int subr; | |
1565 | ||
1566 | for (; *pvp != NULL; pvp++) | |
1567 | if (**pvp == CALLSUBR && pvp[1] != NULL && isdigit(pvp[1][0])) | |
1568 | { | |
1569 | subr = atoi(pvp[1]); | |
1570 | ||
1571 | if (tTd(21, 3)) | |
1572 | printf("-----callsubr %d\n", subr); | |
1573 | ||
1574 | /* | |
1575 | ** Take care of possible inner calls. | |
1576 | */ | |
1577 | callsubr(pvp+2); | |
1578 | ||
1579 | /* | |
1580 | ** Move vector up over calling opcode. | |
1581 | */ | |
1582 | for (rvp = pvp+2; *rvp != NULL; rvp++) | |
1583 | rvp[-2] = rvp[0]; | |
1584 | rvp[-2] = NULL; | |
1585 | ||
1586 | /* | |
1587 | ** Call inferior ruleset. | |
1588 | */ | |
1589 | _rewrite(pvp, subr); | |
1590 | ||
1591 | break; | |
1592 | } | |
1593 | } | |
1594 | \f/* | |
d6a28dd8 EA |
1595 | ** BUILDADDR -- build address from token vector. |
1596 | ** | |
1597 | ** Parameters: | |
1598 | ** tv -- token vector. | |
1599 | ** a -- pointer to address descriptor to fill. | |
1600 | ** If NULL, one will be allocated. | |
28f94061 EA |
1601 | ** flags -- info regarding whether this is a sender or |
1602 | ** a recipient. | |
35b698c6 | 1603 | ** e -- the current envelope. |
d6a28dd8 EA |
1604 | ** |
1605 | ** Returns: | |
fe43b434 EA |
1606 | ** NULL if there was an error. |
1607 | ** 'a' otherwise. | |
d6a28dd8 EA |
1608 | ** |
1609 | ** Side Effects: | |
1610 | ** fills in 'a' | |
1611 | */ | |
1612 | ||
c796f255 EA |
1613 | struct errcodes |
1614 | { | |
1615 | char *ec_name; /* name of error code */ | |
1616 | int ec_code; /* numeric code */ | |
1617 | } ErrorCodes[] = | |
1618 | { | |
1619 | "usage", EX_USAGE, | |
1620 | "nouser", EX_NOUSER, | |
1621 | "nohost", EX_NOHOST, | |
1622 | "unavailable", EX_UNAVAILABLE, | |
1623 | "software", EX_SOFTWARE, | |
1624 | "tempfail", EX_TEMPFAIL, | |
1625 | "protocol", EX_PROTOCOL, | |
1626 | #ifdef EX_CONFIG | |
1627 | "config", EX_CONFIG, | |
1628 | #endif | |
1629 | NULL, EX_UNAVAILABLE, | |
1630 | }; | |
1631 | ||
fd6cfc53 | 1632 | static ADDRESS * |
28f94061 | 1633 | buildaddr(tv, a, flags, e) |
d6a28dd8 EA |
1634 | register char **tv; |
1635 | register ADDRESS *a; | |
28f94061 | 1636 | int flags; |
35b698c6 | 1637 | register ENVELOPE *e; |
d6a28dd8 | 1638 | { |
d6a28dd8 EA |
1639 | struct mailer **mp; |
1640 | register struct mailer *m; | |
51d9cc47 EA |
1641 | char *bp; |
1642 | int spaceleft; | |
9577b1df EA |
1643 | static MAILER errormailer; |
1644 | static char *errorargv[] = { "ERROR", NULL }; | |
8446c922 | 1645 | static char buf[MAXNAME + 1]; |
d6a28dd8 | 1646 | |
b07c457d EA |
1647 | if (tTd(24, 5)) |
1648 | { | |
d6474f90 | 1649 | printf("buildaddr, flags=%x, tv=", flags); |
b07c457d EA |
1650 | printav(tv); |
1651 | } | |
1652 | ||
d6a28dd8 EA |
1653 | if (a == NULL) |
1654 | a = (ADDRESS *) xalloc(sizeof *a); | |
abae7b2d | 1655 | clear((char *) a, sizeof *a); |
d6a28dd8 | 1656 | |
68d9129a | 1657 | /* set up default error return flags */ |
82e3dc75 | 1658 | a->q_flags |= QPINGONFAILURE|QPINGONDELAY; |
68d9129a | 1659 | |
d6a28dd8 | 1660 | /* figure out what net/mailer to use */ |
fd6cfc53 | 1661 | if (*tv == NULL || **tv != CANONNET) |
fe43b434 | 1662 | { |
b6edea3d | 1663 | syserr("554 buildaddr: no net"); |
9577b1df EA |
1664 | badaddr: |
1665 | a->q_flags |= QBADADDR; | |
1666 | a->q_mailer = &errormailer; | |
1667 | if (errormailer.m_name == NULL) | |
1668 | { | |
1669 | /* initialize the bogus mailer */ | |
1670 | errormailer.m_name = "*error*"; | |
1671 | errormailer.m_mailer = "ERROR"; | |
1672 | errormailer.m_argv = errorargv; | |
1673 | } | |
1674 | return a; | |
fe43b434 | 1675 | } |
d6a28dd8 | 1676 | tv++; |
bc854e30 | 1677 | if (strcasecmp(*tv, "error") == 0) |
fe43b434 | 1678 | { |
2bee003d | 1679 | if ((**++tv & 0377) == CANONHOST) |
4fd73cf9 | 1680 | { |
c796f255 EA |
1681 | register struct errcodes *ep; |
1682 | ||
2bee003d | 1683 | if (isascii(**++tv) && isdigit(**tv)) |
c796f255 EA |
1684 | { |
1685 | setstat(atoi(*tv)); | |
1686 | } | |
1687 | else | |
1688 | { | |
1689 | for (ep = ErrorCodes; ep->ec_name != NULL; ep++) | |
1690 | if (strcasecmp(ep->ec_name, *tv) == 0) | |
1691 | break; | |
1692 | setstat(ep->ec_code); | |
1693 | } | |
4fd73cf9 EA |
1694 | tv++; |
1695 | } | |
b34fac73 EA |
1696 | else |
1697 | setstat(EX_UNAVAILABLE); | |
fd6cfc53 EA |
1698 | buf[0] = '\0'; |
1699 | for (; (*tv != NULL) && (**tv != CANONUSER); tv++) | |
1700 | { | |
1701 | if (buf[0] != '\0') | |
1702 | (void) strcat(buf, " "); | |
1703 | (void) strcat(buf, *tv); | |
1704 | } | |
2bee003d | 1705 | if ((**tv & 0377) != CANONUSER) |
b6edea3d | 1706 | syserr("554 buildaddr: error: no user"); |
4fcb2bfa | 1707 | cataddr(++tv, NULL, buf, sizeof buf, ' '); |
1c7897ef | 1708 | stripquotes(buf); |
fd6cfc53 EA |
1709 | #ifdef LOG |
1710 | if (LogLevel > 8) | |
1711 | syslog (LOG_DEBUG, "%s: Trace: $#ERROR $: %s", | |
1712 | CurEnv->e_id, buf); | |
1713 | #endif /* LOG */ | |
a10b59b5 EA |
1714 | if (isascii(buf[0]) && isdigit(buf[0]) && |
1715 | isascii(buf[1]) && isdigit(buf[1]) && | |
1716 | isascii(buf[2]) && isdigit(buf[2]) && | |
1717 | buf[3] == ' ') | |
1718 | { | |
1719 | char fmt[10]; | |
1720 | ||
1721 | strncpy(fmt, buf, 3); | |
1722 | strcpy(&fmt[3], " %s"); | |
1723 | usrerr(fmt, buf + 4); | |
486825cf EA |
1724 | |
1725 | /* | |
1726 | ** If this is a 4xx code and we aren't running | |
1727 | ** SMTP on our input, bounce this message; | |
1728 | ** otherwise it disappears without a trace. | |
1729 | */ | |
1730 | ||
1731 | if (fmt[0] == '4' && OpMode != MD_SMTP && | |
1732 | OpMode != MD_DAEMON) | |
1733 | { | |
1734 | e->e_flags |= EF_FATALERRS; | |
1735 | } | |
a10b59b5 EA |
1736 | } |
1737 | else | |
1738 | { | |
6038ef0c | 1739 | usrerr("553 %s", buf); |
a10b59b5 | 1740 | } |
9577b1df | 1741 | goto badaddr; |
fe43b434 | 1742 | } |
98e5062b | 1743 | |
179c1218 | 1744 | for (mp = Mailer; (m = *mp++) != NULL; ) |
d6a28dd8 | 1745 | { |
bc854e30 | 1746 | if (strcasecmp(m->m_name, *tv) == 0) |
d6a28dd8 EA |
1747 | break; |
1748 | } | |
1749 | if (m == NULL) | |
fe43b434 | 1750 | { |
b6edea3d | 1751 | syserr("554 buildaddr: unknown mailer %s", *tv); |
9577b1df | 1752 | goto badaddr; |
fe43b434 | 1753 | } |
179c1218 | 1754 | a->q_mailer = m; |
d6a28dd8 EA |
1755 | |
1756 | /* figure out what host (if any) */ | |
fd6cfc53 | 1757 | if (**++tv != CANONHOST) |
d6a28dd8 | 1758 | { |
6b3bbc1b EA |
1759 | a->q_host = NULL; |
1760 | } | |
1761 | else | |
1762 | { | |
fd6cfc53 EA |
1763 | else |
1764 | a->q_host = NULL; | |
1765 | } | |
1766 | else | |
1767 | { | |
fd6cfc53 EA |
1768 | while (*++tv != NULL && **tv != CANONUSER) |
1769 | (void) strcat(buf, *tv); | |
35cc3fad | 1770 | a->q_host = newstr(buf); |
d6a28dd8 | 1771 | } |
d6a28dd8 EA |
1772 | |
1773 | /* figure out the user */ | |
2bee003d | 1774 | if (*tv == NULL || (**tv & 0377) != CANONUSER) |
fe43b434 | 1775 | { |
b6edea3d | 1776 | syserr("554 buildaddr: no user"); |
9577b1df | 1777 | goto badaddr; |
fe43b434 | 1778 | } |
98e5062b EA |
1779 | tv++; |
1780 | ||
1f116778 EA |
1781 | if (bitnset(M_CHECKUDB, m->m_flags) && *tv != NULL && |
1782 | strcmp(*tv, "@") == 0) | |
1783 | { | |
1784 | tv++; | |
1785 | a->q_flags |= QNOTREMOTE; | |
1786 | } | |
1787 | ||
98e5062b | 1788 | /* do special mapping for local mailer */ |
2bade550 | 1789 | if (*tv != NULL) |
98e5062b | 1790 | { |
7e70d3c8 EA |
1791 | register char *p = *tv; |
1792 | ||
1793 | if (*p == '"') | |
1794 | p++; | |
2bade550 | 1795 | if (*p == '|' && bitnset(M_CHECKPROG, m->m_flags)) |
98e5062b | 1796 | a->q_mailer = m = ProgMailer; |
2bade550 | 1797 | else if (*p == '/' && bitnset(M_CHECKFILE, m->m_flags)) |
98e5062b | 1798 | a->q_mailer = m = FileMailer; |
2bade550 | 1799 | else if (*p == ':' && bitnset(M_CHECKINCLUDE, m->m_flags)) |
98e5062b EA |
1800 | { |
1801 | /* may be :include: */ | |
4fcb2bfa | 1802 | cataddr(tv, NULL, buf, sizeof buf, '\0'); |
51d9cc47 EA |
1803 | stripquotes(buf); |
1804 | if (strncasecmp(buf, ":include:", 9) == 0) | |
1805 | { | |
1806 | /* if :include:, don't need further rewriting */ | |
98e5062b | 1807 | a->q_mailer = m = InclMailer; |
51d9cc47 EA |
1808 | a->q_user = &buf[9]; |
1809 | return (a); | |
1810 | } | |
98e5062b EA |
1811 | } |
1812 | } | |
d13779b1 | 1813 | |
c40bef63 EA |
1814 | if (m->m_r_rwset > 0) |
1815 | rewrite(tv, m->m_r_rwset); | |
b141a9b6 | 1816 | (void) rewrite(tv, 4, 0, e); |
5108b0cc EA |
1817 | |
1818 | /* save the result for the command line/RCPT argument */ | |
4fcb2bfa | 1819 | cataddr(tv, NULL, buf, sizeof buf, '\0'); |
d6a28dd8 EA |
1820 | a->q_user = buf; |
1821 | ||
dd3ec3f5 EA |
1822 | /* |
1823 | ** Do mapping to lower case as requested by mailer | |
1824 | */ | |
1825 | ||
1826 | if (a->q_host != NULL && !bitnset(M_HST_UPPER, m->m_flags)) | |
1827 | makelower(a->q_host); | |
1828 | if (!bitnset(M_USR_UPPER, m->m_flags)) | |
1829 | makelower(a->q_user); | |
1830 | ||
d6a28dd8 EA |
1831 | return (a); |
1832 | } | |
9e3c0a28 | 1833 | \f/* |
31b33174 EA |
1834 | ** CATADDR -- concatenate pieces of addresses (putting in <LWSP> subs) |
1835 | ** | |
1836 | ** Parameters: | |
1837 | ** pvp -- parameter vector to rebuild. | |
4fcb2bfa EA |
1838 | ** evp -- last parameter to include. Can be NULL to |
1839 | ** use entire pvp. | |
31b33174 EA |
1840 | ** buf -- buffer to build the string into. |
1841 | ** sz -- size of buf. | |
1c7897ef EA |
1842 | ** spacesub -- the space separator character; if null, |
1843 | ** use SpaceSub. | |
31b33174 EA |
1844 | ** |
1845 | ** Returns: | |
1846 | ** none. | |
1847 | ** | |
1848 | ** Side Effects: | |
1849 | ** Destroys buf. | |
1850 | */ | |
1851 | ||
fd6cfc53 | 1852 | void |
4fcb2bfa | 1853 | cataddr(pvp, evp, buf, sz, spacesub) |
31b33174 | 1854 | char **pvp; |
4fcb2bfa | 1855 | char **evp; |
31b33174 EA |
1856 | char *buf; |
1857 | register int sz; | |
1c7897ef | 1858 | char spacesub; |
31b33174 EA |
1859 | { |
1860 | bool oatomtok = FALSE; | |
fd6cfc53 | 1861 | bool natomtok; |
31b33174 EA |
1862 | register int i; |
1863 | register char *p; | |
1864 | ||
1c7897ef EA |
1865 | if (spacesub == '\0') |
1866 | spacesub = SpaceSub; | |
1867 | ||
e93460a9 EA |
1868 | if (pvp == NULL) |
1869 | { | |
03388044 | 1870 | (void) strcpy(buf, ""); |
e93460a9 EA |
1871 | return; |
1872 | } | |
31b33174 | 1873 | p = buf; |
89dd4c8f | 1874 | sz -= 2; |
31b33174 EA |
1875 | while (*pvp != NULL && (i = strlen(*pvp)) < sz) |
1876 | { | |
506fc377 | 1877 | natomtok = (toktype(**pvp) == ATM); |
31b33174 | 1878 | if (oatomtok && natomtok) |
1c7897ef | 1879 | *p++ = spacesub; |
31b33174 EA |
1880 | (void) strcpy(p, *pvp); |
1881 | oatomtok = natomtok; | |
1882 | p += i; | |
89dd4c8f | 1883 | sz -= i + 1; |
4fcb2bfa EA |
1884 | if (pvp++ == evp) |
1885 | break; | |
31b33174 EA |
1886 | } |
1887 | *p = '\0'; | |
1888 | } | |
1889 | \f/* | |
9e3c0a28 EA |
1890 | ** SAMEADDR -- Determine if two addresses are the same |
1891 | ** | |
1892 | ** This is not just a straight comparison -- if the mailer doesn't | |
1893 | ** care about the host we just ignore it, etc. | |
1894 | ** | |
1895 | ** Parameters: | |
1896 | ** a, b -- pointers to the internal forms to compare. | |
9e3c0a28 EA |
1897 | ** |
1898 | ** Returns: | |
1899 | ** TRUE -- they represent the same mailbox. | |
1900 | ** FALSE -- they don't. | |
1901 | ** | |
1902 | ** Side Effects: | |
1903 | ** none. | |
1904 | */ | |
1905 | ||
1906 | bool | |
7338e3d4 | 1907 | sameaddr(a, b) |
9e3c0a28 EA |
1908 | register ADDRESS *a; |
1909 | register ADDRESS *b; | |
9e3c0a28 | 1910 | { |
60d490ff EA |
1911 | register ADDRESS *ca, *cb; |
1912 | ||
9e3c0a28 EA |
1913 | /* if they don't have the same mailer, forget it */ |
1914 | if (a->q_mailer != b->q_mailer) | |
1915 | return (FALSE); | |
1916 | ||
1917 | /* if the user isn't the same, we can drop out */ | |
fd6cfc53 | 1918 | if (strcasecmp(a->q_user, b->q_user)) |
9e3c0a28 EA |
1919 | return (FALSE); |
1920 | ||
60d490ff | 1921 | /* if we have good uids for both but they differ, these are different */ |
180a908c EA |
1922 | if (a->q_mailer == ProgMailer) |
1923 | { | |
1924 | ca = getctladdr(a); | |
1925 | cb = getctladdr(b); | |
1926 | if (ca != NULL && cb != NULL && | |
1927 | bitset(QGOODUID, ca->q_flags & cb->q_flags) && | |
1928 | ca->q_uid != cb->q_uid) | |
1929 | return (FALSE); | |
1930 | } | |
4e535265 | 1931 | |
9e3c0a28 | 1932 | /* otherwise compare hosts (but be careful for NULL ptrs) */ |
fa085f58 EA |
1933 | if (a->q_host == b->q_host) |
1934 | { | |
1935 | /* probably both null pointers */ | |
1936 | return (TRUE); | |
1937 | } | |
9e3c0a28 | 1938 | if (a->q_host == NULL || b->q_host == NULL) |
fa085f58 EA |
1939 | { |
1940 | /* only one is a null pointer */ | |
9e3c0a28 | 1941 | return (FALSE); |
fa085f58 | 1942 | } |
fd6cfc53 | 1943 | if (strcasecmp(a->q_host, b->q_host)) |
9e3c0a28 EA |
1944 | return (FALSE); |
1945 | ||
1946 | return (TRUE); | |
1947 | } | |
779597d8 EA |
1948 | \f/* |
1949 | ** PRINTADDR -- print address (for debugging) | |
1950 | ** | |
1951 | ** Parameters: | |
1952 | ** a -- the address to print | |
1953 | ** follow -- follow the q_next chain. | |
1954 | ** | |
1955 | ** Returns: | |
1956 | ** none. | |
1957 | ** | |
1958 | ** Side Effects: | |
1959 | ** none. | |
1960 | */ | |
1961 | ||
bdd1eb9a EA |
1962 | struct qflags |
1963 | { | |
1964 | char *qf_name; | |
1965 | u_long qf_bit; | |
1966 | }; | |
1967 | ||
1968 | struct qflags AddressFlags[] = | |
1969 | { | |
1970 | "QDONTSEND", QDONTSEND, | |
1971 | "QBADADDR", QBADADDR, | |
1972 | "QGOODUID", QGOODUID, | |
1973 | "QPRIMARY", QPRIMARY, | |
1974 | "QQUEUEUP", QQUEUEUP, | |
1975 | "QSENT", QSENT, | |
1976 | "QNOTREMOTE", QNOTREMOTE, | |
1977 | "QSELFREF", QSELFREF, | |
1978 | "QVERIFIED", QVERIFIED, | |
1979 | "QREPORT", QREPORT, | |
1980 | "QBOGUSSHELL", QBOGUSSHELL, | |
1981 | "QUNSAFEADDR", QUNSAFEADDR, | |
1982 | "QPINGONSUCCESS", QPINGONSUCCESS, | |
1983 | "QPINGONFAILURE", QPINGONFAILURE, | |
1984 | "QPINGONDELAY", QPINGONDELAY, | |
e1f691b3 | 1985 | "QHASNOTIFY", QHASNOTIFY, |
bdd1eb9a | 1986 | "QRELAYED", QRELAYED, |
66d16835 EA |
1987 | "QEXPLODED", QEXPLODED, |
1988 | "QTHISPASS", QTHISPASS, | |
bdd1eb9a EA |
1989 | NULL |
1990 | }; | |
1991 | ||
ea07b2d2 | 1992 | void |
fd6cfc53 | 1993 | void |
779597d8 EA |
1994 | printaddr(a, follow) |
1995 | register ADDRESS *a; | |
1996 | bool follow; | |
1997 | { | |
78bbbc48 EA |
1998 | register MAILER *m; |
1999 | MAILER pseudomailer; | |
bdd1eb9a EA |
2000 | register struct qflags *qfp; |
2001 | bool firstone; | |
2002 | ||
2003 | if (a == NULL) | |
2004 | { | |
2005 | printf("[NULL]\n"); | |
2006 | return; | |
2007 | } | |
d4f42161 | 2008 | |
abae7b2d EA |
2009 | static int indent; |
2010 | register int i; | |
2011 | ||
779597d8 EA |
2012 | while (a != NULL) |
2013 | { | |
abae7b2d EA |
2014 | for (i = indent; i > 0; i--) |
2015 | printf("\t"); | |
331b7c9f | 2016 | printf("%x=", a); |
29871fef | 2017 | (void) fflush(stdout); |
78bbbc48 EA |
2018 | |
2019 | /* find the mailer -- carefully */ | |
2020 | m = a->q_mailer; | |
2021 | if (m == NULL) | |
2022 | { | |
2023 | m = &pseudomailer; | |
2024 | m->m_mno = -1; | |
2025 | m->m_name = "NULL"; | |
2026 | } | |
2027 | ||
abae7b2d EA |
2028 | for (i = indent; i > 0; i--) |
2029 | printf("\t"); | |
2030 | printf("\tnext=%x, flags=%o, rmailer %d, alias=%x, sibling=%x, child=%x\n", | |
2031 | a->q_next, a->q_flags, a->q_rmailer, a->q_alias, | |
2032 | a->q_sibling, a->q_child); | |
2033 | ||
2034 | /* follow the chain if appropriate */ | |
779597d8 EA |
2035 | if (!follow) |
2036 | return; | |
abae7b2d EA |
2037 | |
2038 | indent++; | |
2039 | printaddr(a->q_child, TRUE); | |
2040 | indent--; | |
2041 | a = a->q_sibling; | |
779597d8 EA |
2042 | } |
2043 | } | |
f43d47fc EA |
2044 | \f/* |
2045 | ** EMPTYADDR -- return TRUE if this address is empty (``<>'') | |
2046 | ** | |
2047 | ** Parameters: | |
2048 | ** a -- pointer to the address | |
2049 | ** | |
2050 | ** Returns: | |
2051 | ** TRUE -- if this address is "empty" (i.e., no one should | |
2052 | ** ever generate replies to it. | |
2053 | ** FALSE -- if it is a "regular" (read: replyable) address. | |
2054 | */ | |
74c5fe7c | 2055 | |
f43d47fc EA |
2056 | bool |
2057 | emptyaddr(a) | |
2058 | register ADDRESS *a; | |
2059 | { | |
2060 | return strcmp(a->q_paddr, "<>") == 0 || strcmp(a->q_user, "<>") == 0; | |
2061 | } | |
22892d62 EA |
2062 | \f/* |
2063 | ** REMOTENAME -- return the name relative to the current mailer | |
2064 | ** | |
2065 | ** Parameters: | |
2066 | ** name -- the name to translate. | |
b00e6882 EA |
2067 | ** m -- the mailer that we want to do rewriting relative |
2068 | ** to. | |
9e43a19e EA |
2069 | ** flags -- fine tune operations. |
2070 | ** pstat -- pointer to status word. | |
68f7099c | 2071 | ** e -- the current envelope. |
22892d62 EA |
2072 | ** |
2073 | ** Returns: | |
2074 | ** the text string representing this address relative to | |
2075 | ** the receiving mailer. | |
2076 | ** | |
2077 | ** Side Effects: | |
2078 | ** none. | |
2079 | ** | |
2080 | ** Warnings: | |
2081 | ** The text string returned is tucked away locally; | |
2082 | ** copy it if you intend to save it. | |
2083 | */ | |
2084 | ||
2085 | char * | |
9e43a19e | 2086 | remotename(name, m, flags, pstat, e) |
22892d62 | 2087 | char *name; |
fd6cfc53 | 2088 | MAILER *m; |
9e43a19e EA |
2089 | int flags; |
2090 | int *pstat; | |
a4076aed | 2091 | register ENVELOPE *e; |
22892d62 | 2092 | { |
b00e6882 EA |
2093 | register char **pvp; |
2094 | char *fancy; | |
a4076aed | 2095 | char *oldg = macvalue('g', e); |
68f7099c | 2096 | int rwset; |
8446c922 EA |
2097 | static char buf[MAXNAME + 1]; |
2098 | char lbuf[MAXNAME + 1]; | |
217a0102 | 2099 | char pvpbuf[PSBUFSIZE]; |
22892d62 | 2100 | |
e4b94f39 EA |
2101 | if (tTd(12, 1)) |
2102 | printf("remotename(%s)\n", name); | |
e4b94f39 | 2103 | |
4db45bf1 | 2104 | /* don't do anything if we are tagging it as special */ |
c40bef63 | 2105 | if ((senderaddress ? m->m_s_rwset : m->m_r_rwset) < 0) |
4db45bf1 EA |
2106 | return (name); |
2107 | ||
22892d62 | 2108 | /* |
857afefe EA |
2109 | ** Do a heuristic crack of this name to extract any comment info. |
2110 | ** This will leave the name as a comment and a $g macro. | |
22892d62 EA |
2111 | */ |
2112 | ||
9e43a19e | 2113 | if (bitset(RF_CANONICAL, flags) || bitnset(M_NOCOMMENT, m->m_flags)) |
2bee003d | 2114 | fancy = "\201g"; |
532c9874 EA |
2115 | else |
2116 | fancy = crackaddr(name); | |
0908f182 | 2117 | |
857afefe EA |
2118 | /* |
2119 | ** Turn the name into canonical form. | |
2120 | ** Normally this will be RFC 822 style, i.e., "user@domain". | |
2121 | ** If this only resolves to "user", and the "C" flag is | |
2122 | ** specified in the sending mailer, then the sender's | |
2123 | ** domain will be appended. | |
2124 | */ | |
2125 | ||
148ea694 | 2126 | pvp = prescan(name, '\0', pvpbuf, sizeof pvpbuf, NULL); |
0908f182 | 2127 | if (pvp == NULL) |
22892d62 | 2128 | return (name); |
b141a9b6 | 2129 | if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL) |
9e43a19e EA |
2130 | *pstat = EX_TEMPFAIL; |
2131 | if (bitset(RF_ADDDOMAIN, flags) && e->e_fromdomain != NULL) | |
857afefe EA |
2132 | { |
2133 | /* append from domain to this address */ | |
2134 | register char **pxp = pvp; | |
2135 | ||
18c3cee9 | 2136 | /* see if there is an "@domain" in the current name */ |
857afefe EA |
2137 | while (*pxp != NULL && strcmp(*pxp, "@") != 0) |
2138 | pxp++; | |
2139 | if (*pxp == NULL) | |
2140 | { | |
18c3cee9 | 2141 | /* no.... append the "@domain" from the sender */ |
a4076aed | 2142 | register char **qxq = e->e_fromdomain; |
857afefe | 2143 | |
18c3cee9 EA |
2144 | while ((*pxp++ = *qxq++) != NULL) |
2145 | continue; | |
b141a9b6 | 2146 | if (rewrite(pvp, 3, 0, e) == EX_TEMPFAIL) |
9e43a19e | 2147 | *pstat = EX_TEMPFAIL; |
857afefe EA |
2148 | } |
2149 | } | |
2150 | ||
2151 | /* | |
b726abe3 | 2152 | ** Do more specific rewriting. |
fd6cfc53 EA |
2153 | ** Rewrite using ruleset 1 or 2 for envelope addresses and |
2154 | ** 5 or 6 for header addresses depending on whether this | |
2155 | ** is a sender address or not. | |
857afefe EA |
2156 | ** Then run it through any receiving-mailer-specific rulesets. |
2157 | */ | |
2158 | ||
b00e6882 | 2159 | else |
9e4c75d5 | 2160 | { |
68f7099c | 2161 | if (rwset > 0) |
9e4c75d5 | 2162 | { |
b141a9b6 | 2163 | if (rewrite(pvp, rwset, 0, e) == EX_TEMPFAIL) |
9e43a19e | 2164 | *pstat = EX_TEMPFAIL; |
9e4c75d5 | 2165 | } |
22892d62 | 2166 | |
b726abe3 EA |
2167 | /* |
2168 | ** Do any final sanitation the address may require. | |
2169 | ** This will normally be used to turn internal forms | |
2170 | ** (e.g., user@host.LOCAL) into external form. This | |
2171 | ** may be used as a default to the above rules. | |
2172 | */ | |
2173 | ||
b141a9b6 | 2174 | if (rewrite(pvp, 4, 0, e) == EX_TEMPFAIL) |
9e43a19e | 2175 | *pstat = EX_TEMPFAIL; |
b726abe3 | 2176 | |
857afefe EA |
2177 | /* |
2178 | ** Now restore the comment information we had at the beginning. | |
2179 | */ | |
2180 | ||
9d6aecfd | 2181 | cataddr(pvp, NULL, lbuf, sizeof lbuf, '\0'); |
a4076aed | 2182 | define('g', lbuf, e); |
61fabf2e EA |
2183 | |
2184 | /* need to make sure route-addrs have <angle brackets> */ | |
2185 | if (bitset(RF_CANONICAL, flags) && lbuf[0] == '@') | |
832e8a27 | 2186 | expand("<\201g>", buf, sizeof buf, e); |
61fabf2e | 2187 | else |
832e8a27 | 2188 | expand(fancy, buf, sizeof buf, e); |
61fabf2e | 2189 | |
a4076aed | 2190 | define('g', oldg, e); |
22892d62 | 2191 | |
22892d62 | 2192 | if (tTd(12, 1)) |
e4b94f39 | 2193 | printf("remotename => `%s'\n", buf); |
22892d62 EA |
2194 | return (buf); |
2195 | } | |
d13779b1 | 2196 | \f/* |
fd6cfc53 EA |
2197 | ** UURELATIVIZE -- Make an address !-relative to recipient/sender nodes |
2198 | ** | |
2199 | ** Parameters: | |
2200 | ** from -- the sending node (usually "$k" or "$w") | |
2201 | ** to -- the receiving node (usually "$h") | |
2202 | ** pvp -- address vector | |
2203 | ** | |
2204 | ** Returns: | |
2205 | ** none. | |
2206 | ** | |
2207 | ** Side Effects: | |
2208 | ** The pvp is rewritten to be relative the "to" node | |
2209 | ** wrt the "from" node. In other words, if the pvp | |
2210 | ** is headed by "to!" that part is stripped; otherwise | |
2211 | ** "from!" is prepended. Exception: "to!user" addresses | |
2212 | ** with no '!'s in the user part are sent as is. | |
2213 | ** | |
2214 | ** Bugs: | |
2215 | ** The pvp may overflow, but we don't catch it. | |
2216 | */ | |
2217 | ||
2218 | static void | |
2219 | uurelativize(from, to, pvp) | |
2220 | const char *from, *to; | |
2221 | char **pvp; | |
2222 | { | |
2223 | register char **pxp = pvp; | |
2224 | char expfrom[MAXNAME], expto[MAXNAME]; | |
2225 | ||
2226 | expand(from, expfrom, &expfrom[sizeof expfrom - 1], CurEnv); | |
2227 | expand(to, expto, &expto[sizeof expto - 1], CurEnv); | |
2228 | ||
2229 | /* | |
2230 | * supposing that we've got something, should | |
2231 | * we add "from!" or remove "to!"? | |
2232 | */ | |
2233 | if (pvp[0] != NULL) | |
2234 | if (pvp[1] == NULL || strcmp(pvp[1], "!") != 0 || | |
2235 | /*strcasecmp?*/ strcmp(pvp[0], expto) != 0) | |
2236 | { | |
2237 | /* either local name, no UUCP address, */ | |
2238 | /* or not to "to!" ==> prepend address with "from!" */ | |
2239 | ||
2240 | /* already there? */ | |
2241 | if (pvp[1] == NULL || strcmp(pvp[1], "!") != 0 || | |
2242 | /*strcasecmp?*/ strcmp(pvp[0], expfrom) != 0) | |
2243 | { | |
2244 | ||
2245 | /* no, put it there */ | |
2246 | while (*pxp != NULL) | |
2247 | pxp++; | |
2248 | do | |
2249 | pxp[2] = *pxp; | |
2250 | while (pxp-- != pvp); | |
2251 | pvp[0] = newstr(expfrom); | |
2252 | pvp[1] = "!"; | |
2253 | } | |
2254 | } | |
2255 | else | |
2256 | { | |
2257 | /* address is to "to!" -- remove if not "to!user" */ | |
2258 | for (pxp = &pvp[2]; | |
2259 | *pxp != NULL && strcmp(*pxp, "!") != 0; pxp++) | |
2260 | ; | |
2261 | if (*pxp != NULL) | |
2262 | for (pxp = pvp; *pxp != NULL; pxp++) | |
2263 | *pxp = pxp[2]; | |
2264 | } | |
2265 | } | |
2266 | \f/* | |
d13779b1 EA |
2267 | ** MAPLOCALUSER -- run local username through ruleset 5 for final redirection |
2268 | ** | |
2269 | ** Parameters: | |
2270 | ** a -- the address to map (but just the user name part). | |
2271 | ** sendq -- the sendq in which to install any replacement | |
2272 | ** addresses. | |
f8c2f9fd EA |
2273 | ** aliaslevel -- the alias nesting depth. |
2274 | ** e -- the envelope. | |
d13779b1 EA |
2275 | ** |
2276 | ** Returns: | |
2277 | ** none. | |
2278 | */ | |
2279 | ||
f8c2f9fd | 2280 | maplocaluser(a, sendq, aliaslevel, e) |
d13779b1 EA |
2281 | register ADDRESS *a; |
2282 | ADDRESS **sendq; | |
f8c2f9fd | 2283 | int aliaslevel; |
a4076aed | 2284 | ENVELOPE *e; |
d13779b1 EA |
2285 | { |
2286 | register char **pvp; | |
2287 | register ADDRESS *a1 = NULL; | |
9e2cf26f | 2288 | auto char *delimptr; |
d13779b1 EA |
2289 | char pvpbuf[PSBUFSIZE]; |
2290 | ||
2291 | if (tTd(29, 1)) | |
2292 | { | |
2293 | printf("maplocaluser: "); | |
2294 | printaddr(a, FALSE); | |
2295 | } | |
148ea694 | 2296 | pvp = prescan(a->q_user, '\0', pvpbuf, sizeof pvpbuf, &delimptr); |
d13779b1 EA |
2297 | if (pvp == NULL) |
2298 | return; | |
2299 | ||
b141a9b6 | 2300 | (void) rewrite(pvp, 5, 0, e); |
2bee003d | 2301 | if (pvp[0] == NULL || (pvp[0][0] & 0377) != CANONNET) |
d13779b1 EA |
2302 | return; |
2303 | ||
2304 | /* if non-null, mailer destination specified -- has it changed? */ | |
28f94061 | 2305 | a1 = buildaddr(pvp, NULL, 0, e); |
d13779b1 EA |
2306 | if (a1 == NULL || sameaddr(a, a1)) |
2307 | return; | |
2308 | ||
2309 | /* mark old address as dead; insert new address */ | |
2310 | a->q_flags |= QDONTSEND; | |
78bbbc48 EA |
2311 | if (tTd(29, 5)) |
2312 | { | |
2313 | printf("maplocaluser: QDONTSEND "); | |
2314 | printaddr(a, FALSE); | |
2315 | } | |
d13779b1 | 2316 | a1->q_alias = a; |
dab5fedb | 2317 | allocaddr(a1, RF_COPYALL, NULL); |
f8c2f9fd | 2318 | (void) recipient(a1, sendq, aliaslevel, e); |
d13779b1 | 2319 | } |
28d46d78 EA |
2320 | \f/* |
2321 | ** DEQUOTE_INIT -- initialize dequote map | |
2322 | ** | |
2323 | ** This is a no-op. | |
2324 | ** | |
2325 | ** Parameters: | |
2326 | ** map -- the internal map structure. | |
28d46d78 EA |
2327 | ** args -- arguments. |
2328 | ** | |
2329 | ** Returns: | |
2330 | ** TRUE. | |
2331 | */ | |
2332 | ||
2333 | bool | |
9114f86c | 2334 | dequote_init(map, args) |
28d46d78 | 2335 | MAP *map; |
28d46d78 EA |
2336 | char *args; |
2337 | { | |
5111538e EA |
2338 | register char *p = args; |
2339 | ||
2340 | for (;;) | |
2341 | { | |
2342 | while (isascii(*p) && isspace(*p)) | |
2343 | p++; | |
2344 | if (*p != '-') | |
2345 | break; | |
2346 | switch (*++p) | |
2347 | { | |
2348 | case 'a': | |
2349 | map->map_app = ++p; | |
2350 | break; | |
4cfe7b49 EA |
2351 | |
2352 | case 's': | |
2353 | map->map_coldelim = *++p; | |
2354 | break; | |
5111538e EA |
2355 | } |
2356 | while (*p != '\0' && !(isascii(*p) && isspace(*p))) | |
2357 | p++; | |
2358 | if (*p != '\0') | |
2359 | *p = '\0'; | |
2360 | } | |
2361 | if (map->map_app != NULL) | |
2362 | map->map_app = newstr(map->map_app); | |
2363 | ||
28d46d78 EA |
2364 | return TRUE; |
2365 | } | |
2366 | \f/* | |
2367 | ** DEQUOTE_MAP -- unquote an address | |
2368 | ** | |
2369 | ** Parameters: | |
2370 | ** map -- the internal map structure (ignored). | |
713c523f | 2371 | ** name -- the name to dequote. |
28d46d78 | 2372 | ** av -- arguments (ignored). |
d1db7a89 | 2373 | ** statp -- pointer to status out-parameter. |
28d46d78 EA |
2374 | ** |
2375 | ** Returns: | |
2376 | ** NULL -- if there were no quotes, or if the resulting | |
2377 | ** unquoted buffer would not be acceptable to prescan. | |
2378 | ** else -- The dequoted buffer. | |
2379 | */ | |
2380 | ||
2381 | char * | |
713c523f | 2382 | dequote_map(map, name, av, statp) |
28d46d78 | 2383 | MAP *map; |
713c523f | 2384 | char *name; |
28d46d78 | 2385 | char **av; |
d1db7a89 | 2386 | int *statp; |
28d46d78 EA |
2387 | { |
2388 | register char *p; | |
2389 | register char *q; | |
2390 | register char c; | |
4cfe7b49 EA |
2391 | int anglecnt = 0; |
2392 | int cmntcnt = 0; | |
2393 | int quotecnt = 0; | |
2394 | int spacecnt = 0; | |
2395 | bool quotemode = FALSE; | |
2396 | bool bslashmode = FALSE; | |
2397 | char spacesub = map->map_coldelim; | |
28d46d78 | 2398 | |
713c523f | 2399 | for (p = q = name; (c = *p++) != '\0'; ) |
28d46d78 EA |
2400 | { |
2401 | if (bslashmode) | |
2402 | { | |
2403 | bslashmode = FALSE; | |
2404 | *q++ = c; | |
2405 | continue; | |
2406 | } | |
2407 | ||
4cfe7b49 EA |
2408 | if (c == ' ' && spacesub != '\0') |
2409 | c = spacesub; | |
aff9529d | 2410 | |
28d46d78 EA |
2411 | switch (c) |
2412 | { | |
2413 | case '\\': | |
2414 | bslashmode = TRUE; | |
2415 | break; | |
2416 | ||
2417 | case '(': | |
2418 | cmntcnt++; | |
2419 | break; | |
2420 | ||
2421 | case ')': | |
2422 | if (cmntcnt-- <= 0) | |
2423 | return NULL; | |
2424 | break; | |
493ddf6a EA |
2425 | |
2426 | case ' ': | |
2427 | spacecnt++; | |
2428 | break; | |
28d46d78 EA |
2429 | } |
2430 | ||
2431 | if (cmntcnt > 0) | |
2432 | { | |
2433 | *q++ = c; | |
2434 | continue; | |
2435 | } | |
2436 | ||
2437 | switch (c) | |
2438 | { | |
2439 | case '"': | |
2440 | quotemode = !quotemode; | |
2441 | quotecnt++; | |
2442 | continue; | |
2443 | ||
2444 | case '<': | |
2445 | anglecnt++; | |
2446 | break; | |
2447 | ||
2448 | case '>': | |
2449 | if (anglecnt-- <= 0) | |
2450 | return NULL; | |
2451 | break; | |
2452 | } | |
2453 | *q++ = c; | |
2454 | } | |
2455 | ||
2456 | if (anglecnt != 0 || cmntcnt != 0 || bslashmode || | |
493ddf6a | 2457 | quotemode || quotecnt <= 0 || spacecnt != 0) |
28d46d78 EA |
2458 | return NULL; |
2459 | *q++ = '\0'; | |
713c523f | 2460 | return name; |
28d46d78 | 2461 | } |