Commit | Line | Data |
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059ec3d9 PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
3386088d | 5 | /* Copyright (c) University of Cambridge 1995 - 2015 */ |
059ec3d9 PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | ||
9 | /* Source files for exim all #include this header, which drags in everything | |
10 | that is needed. They don't all need everything, of course, but it's far too | |
11 | messy to have each one importing its own list, and anyway, most of them need | |
12 | most of these includes. */ | |
13 | ||
14 | /* Assume most systems have statfs() unless os.h undefines this macro */ | |
15 | ||
16 | #define HAVE_STATFS | |
17 | ||
0eb8eedd NM |
18 | /* Similarly, assume most systems have srandom() unless os.h undefines it. |
19 | This call dates back at least as far as SUSv2. */ | |
20 | ||
21 | #define HAVE_SRANDOM | |
22 | ||
b87a6e0e | 23 | /* This is primarily for the Gnu C library; we define it before os.h so that |
57eb9e91 PP |
24 | os.h has a chance to hurriedly undef it, Just In Case. We need C99 for some |
25 | 64-bit math support, and defining _ISOC99_SOURCE breaks <resolv.h> and friends. | |
26 | */ | |
b87a6e0e | 27 | |
57eb9e91 | 28 | #define _GNU_SOURCE 1 |
b87a6e0e | 29 | |
059ec3d9 PH |
30 | /* First of all include the os-specific header, which might set things that |
31 | are needed by any of the other headers, including system headers. */ | |
32 | ||
33 | #include "os.h" | |
34 | ||
35 | /* If it didn't define os_find_running_interfaces, use the common function. */ | |
36 | ||
37 | #ifndef os_find_running_interfaces | |
c007c974 | 38 | # define os_find_running_interfaces os_common_find_running_interfaces |
059ec3d9 PH |
39 | #endif |
40 | ||
41 | /* If it didn't define the base for "base 62" numbers, we really do use 62. | |
42 | This is the case for all real Unix and Unix-like OS. It's only Cygwin and | |
43 | Darwin, with their case-insensitive file systems, that can't use base 62 for | |
44 | making unique names. */ | |
45 | ||
46 | #ifndef BASE_62 | |
c007c974 | 47 | # define BASE_62 62 |
059ec3d9 PH |
48 | #endif |
49 | ||
50 | /* The maximum value of localhost_number depends on the base being used */ | |
51 | ||
52 | #if BASE_62 == 62 | |
c007c974 | 53 | # define LOCALHOST_MAX 16 |
059ec3d9 | 54 | #else |
c007c974 | 55 | # define LOCALHOST_MAX 10 |
059ec3d9 PH |
56 | #endif |
57 | ||
4789da3a | 58 | /* If not overridden by os.h, dynamic libraries have filenames ending .so */ |
e12f8c32 PP |
59 | #ifndef DYNLIB_FN_EXT |
60 | # define DYNLIB_FN_EXT "so" | |
61 | #endif | |
62 | ||
059ec3d9 PH |
63 | /* ANSI C standard includes */ |
64 | ||
65 | #include <ctype.h> | |
66 | #include <locale.h> | |
870f6ba8 | 67 | #include <math.h> |
059ec3d9 PH |
68 | #include <signal.h> |
69 | #include <stdarg.h> | |
70 | #include <stddef.h> | |
71 | #include <stdio.h> | |
72 | #include <stdlib.h> | |
73 | #include <string.h> | |
74 | #include <time.h> | |
75 | ||
76 | /* Unix includes */ | |
77 | ||
78 | #include <errno.h> | |
1a46a8c5 | 79 | #if defined(__svr4__) && defined(__sparc) && ! defined(__EXTENSIONS__) |
c007c974 JH |
80 | # define __EXTENSIONS__ /* so that SunOS 5 gets NGROUPS_MAX */ |
81 | # include <limits.h> | |
82 | # undef __EXTENSIONS__ | |
059ec3d9 | 83 | #else |
c007c974 | 84 | # include <limits.h> |
059ec3d9 PH |
85 | #endif |
86 | ||
17c76198 PP |
87 | /* C99 integer types, figure out how to undo this if needed for older systems */ |
88 | ||
89 | #include <inttypes.h> | |
90 | ||
059ec3d9 PH |
91 | /* Just in case some aged system doesn't define them... */ |
92 | ||
93 | #ifndef INT_MAX | |
c007c974 | 94 | # define INT_MAX 2147483647 |
059ec3d9 PH |
95 | #endif |
96 | ||
4362ff0d | 97 | #ifndef INT_MIN |
c007c974 | 98 | # define INT_MIN (-INT_MAX - 1) |
4362ff0d PH |
99 | #endif |
100 | ||
101 | #ifndef SHRT_MAX | |
c007c974 | 102 | # define SHRT_MAX 32767 |
4362ff0d PH |
103 | #endif |
104 | ||
059ec3d9 | 105 | #ifndef UCHAR_MAX |
c007c974 | 106 | # define UCHAR_MAX 255 |
059ec3d9 PH |
107 | #endif |
108 | ||
4328fd3c JH |
109 | |
110 | /* To match int_eximarith_t. Define in OS/os.h-<your-system> to override. */ | |
111 | #ifndef EXIM_ARITH_MAX | |
112 | # define EXIM_ARITH_MAX ((int_eximarith_t)9223372036854775807LL) | |
113 | #endif | |
114 | #ifndef EXIM_ARITH_MIN | |
115 | # define EXIM_ARITH_MIN (-EXIM_ARITH_MAX - 1) | |
116 | #endif | |
117 | ||
059ec3d9 PH |
118 | /* Some systems have PATH_MAX and some have MAX_PATH_LEN. */ |
119 | ||
120 | #ifndef PATH_MAX | |
c007c974 JH |
121 | # ifdef MAX_PATH_LEN |
122 | # define PATH_MAX MAX_PATH_LEN | |
123 | # else | |
124 | # define PATH_MAX 1024 | |
125 | # endif | |
059ec3d9 PH |
126 | #endif |
127 | ||
128 | #include <sys/types.h> | |
129 | #include <sys/file.h> | |
130 | #include <dirent.h> | |
131 | #include <netdb.h> | |
f452e07e | 132 | #ifndef NO_POLL_H |
c007c974 | 133 | # include <poll.h> |
f452e07e | 134 | #endif |
059ec3d9 PH |
135 | #include <pwd.h> |
136 | #include <grp.h> | |
137 | #include <syslog.h> | |
138 | ||
139 | /* Not all systems have flock() available. Those that do must define LOCK_SH | |
140 | in sys/file.h. */ | |
141 | ||
142 | #ifndef LOCK_SH | |
c007c974 | 143 | # define NO_FLOCK |
059ec3d9 PH |
144 | #endif |
145 | ||
146 | #ifndef NO_SYSEXITS /* some OS don't have this */ | |
c007c974 | 147 | # include <sysexits.h> |
059ec3d9 PH |
148 | #endif |
149 | ||
36a3b041 PH |
150 | /* A few OS don't have socklen_t; their os.h files define EXIM_SOCKLEN_T to |
151 | be size_t or whatever. We used to use SOCKLEN_T, but then it was discovered | |
152 | that this is used by the AIX include files. */ | |
059ec3d9 | 153 | |
36a3b041 | 154 | #ifndef EXIM_SOCKLEN_T |
c007c974 | 155 | # define EXIM_SOCKLEN_T socklen_t |
059ec3d9 PH |
156 | #endif |
157 | ||
158 | /* Ensure that the sysexits we reference are defined */ | |
159 | ||
160 | #ifndef EX_UNAVAILABLE | |
c007c974 | 161 | # define EX_UNAVAILABLE 69 /* service unavailable; used for execv fail */ |
059ec3d9 PH |
162 | #endif |
163 | #ifndef EX_CANTCREAT | |
c007c974 | 164 | # define EX_CANTCREAT 73 /* can't create file: treat as temporary */ |
059ec3d9 PH |
165 | #endif |
166 | #ifndef EX_TEMPFAIL | |
c007c974 | 167 | # define EX_TEMPFAIL 75 /* temp failure; user is invited to retry */ |
059ec3d9 PH |
168 | #endif |
169 | #ifndef EX_CONFIG | |
c007c974 | 170 | # define EX_CONFIG 78 /* configuration error */ |
059ec3d9 PH |
171 | #endif |
172 | ||
173 | /* This one is not in any sysexits file that I've come across */ | |
174 | ||
175 | #define EX_EXECFAILED 127 /* execve() failed */ | |
176 | ||
177 | ||
178 | #include <sys/time.h> | |
179 | #include <sys/param.h> | |
180 | ||
181 | #ifndef NO_SYS_RESOURCE_H /* QNX doesn't have this */ | |
c007c974 | 182 | # include <sys/resource.h> |
059ec3d9 PH |
183 | #endif |
184 | ||
185 | #include <sys/socket.h> | |
186 | ||
187 | /* If we are on an IPv6 system, the macro AF_INET6 will have been defined in | |
188 | the sys/socket.h header. It is helpful to have this defined on an IPv4 system | |
189 | so that it can appear in the code, even if it is never actually used when | |
190 | the code is run. It saves some #ifdef occurrences. */ | |
191 | ||
192 | #ifndef AF_INET6 | |
c007c974 | 193 | # define AF_INET6 24 |
059ec3d9 PH |
194 | #endif |
195 | ||
196 | #include <sys/ioctl.h> | |
197 | ||
198 | /* The new standard is statvfs; some OS have statfs. For statvfs the block | |
199 | counts must be multiplied by the "fragment size" f_frsize to get the actual | |
200 | size. In other cases the value seems to be f_bsize (which is sometimes the only | |
201 | block size), so we use a macro to get that instead. | |
202 | ||
203 | Also arrange to be able to cut it out altogether for way-out OS that don't have | |
204 | anything. I've indented a bit here to try to make the mess a bit more | |
205 | intelligible. Note that simply defining one name to be another when | |
206 | HAVE_SYS_STATVFS_H is not set will not work if the system has a statvfs macro | |
207 | or a macro with entries f_frsize and f_bsize. */ | |
208 | ||
209 | #ifdef HAVE_STATFS | |
210 | #ifdef HAVE_SYS_STATVFS_H | |
211 | #include <sys/statvfs.h> | |
212 | #define STATVFS statvfs | |
213 | #define F_FRSIZE f_frsize | |
214 | #else | |
215 | #define STATVFS statfs | |
216 | #define F_FRSIZE f_bsize | |
217 | #ifdef HAVE_SYS_VFS_H | |
218 | #include <sys/vfs.h> | |
219 | #ifdef HAVE_SYS_STATFS_H | |
220 | #include <sys/statfs.h> | |
221 | #endif | |
222 | #endif | |
223 | #ifdef HAVE_SYS_MOUNT_H | |
224 | #include <sys/mount.h> | |
225 | #endif | |
226 | #endif | |
227 | ||
228 | /* Macros for the fields for the available space for non-superusers; define | |
229 | these only if the OS header has not. Not all OS have f_favail; those that | |
230 | are known to have it define F_FAVAIL as f_favail. The default is to use | |
231 | f_free. */ | |
232 | ||
233 | #ifndef F_BAVAIL | |
c007c974 | 234 | # define F_BAVAIL f_bavail |
059ec3d9 PH |
235 | #endif |
236 | ||
237 | #ifndef F_FAVAIL | |
c007c974 | 238 | # define F_FAVAIL f_ffree |
059ec3d9 PH |
239 | #endif |
240 | ||
241 | /* All the systems I've been able to look at seem to have F_FILES */ | |
242 | ||
243 | #ifndef F_FILES | |
c007c974 | 244 | # define F_FILES f_files |
059ec3d9 PH |
245 | #endif |
246 | ||
247 | #endif | |
248 | ||
249 | ||
1a46a8c5 | 250 | #ifndef SIOCGIFCONF /* HACK for SunOS 5 */ |
c007c974 | 251 | # include <sys/sockio.h> |
059ec3d9 PH |
252 | #endif |
253 | ||
254 | #include <sys/stat.h> | |
255 | #include <sys/wait.h> | |
256 | #include <sys/utsname.h> | |
257 | #include <fcntl.h> | |
258 | ||
259 | /* There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts | |
415c8f3b PH |
260 | with the definition in sysexits.h. Exim does not actually use this macro, so we |
261 | just undefine it. It would be nice to be able to re-instate the definition from | |
262 | sysexits.h if there is no definition in unistd.h, but I do not think there is a | |
263 | way to do this in C because macro definitions are not scanned for other macros | |
264 | at definition time. [The code here used to assume they were, until I was | |
265 | disabused of the notion. Luckily, since EX_OK is not used, it didn't matter.] */ | |
059ec3d9 PH |
266 | |
267 | #ifdef EX_OK | |
c007c974 | 268 | # undef EX_OK |
059ec3d9 PH |
269 | #endif |
270 | ||
271 | #include <unistd.h> | |
272 | ||
059ec3d9 PH |
273 | #include <utime.h> |
274 | #ifndef NO_NET_IF_H | |
c007c974 | 275 | # include <net/if.h> |
059ec3d9 PH |
276 | #endif |
277 | #include <sys/un.h> | |
278 | #include <netinet/in.h> | |
279 | #include <netinet/tcp.h> | |
280 | #include <arpa/inet.h> | |
281 | #include <arpa/nameser.h> | |
282 | ||
283 | ||
284 | /* If arpa/nameser.h defines a maximum name server packet size, use it, | |
285 | provided it is greater than 2048. Otherwise go for a default. PACKETSZ was used | |
286 | for this, but it seems that NS_PACKETSZ is coming into use. */ | |
287 | ||
288 | #if defined(NS_PACKETSZ) && NS_PACKETSZ >= 2048 | |
289 | #define MAXPACKET NS_PACKETSZ | |
290 | #elif defined(PACKETSZ) && PACKETSZ >= 2048 | |
291 | #define MAXPACKET PACKETSZ | |
292 | #else | |
293 | #define MAXPACKET 2048 | |
294 | #endif | |
295 | ||
296 | /* While IPv6 is still young the definitions of T_AAAA and T_A6 may not be | |
297 | included in arpa/nameser.h. Fudge them here. */ | |
298 | ||
299 | #ifndef T_AAAA | |
300 | #define T_AAAA 28 | |
301 | #endif | |
302 | ||
303 | #ifndef T_A6 | |
304 | #define T_A6 38 | |
305 | #endif | |
306 | ||
307 | /* Ancient systems (e.g. SunOS4) don't appear to have T_TXT defined in their | |
308 | header files. I don't suppose they have T_SRV either. */ | |
309 | ||
310 | #ifndef T_TXT | |
c007c974 | 311 | # define T_TXT 16 |
059ec3d9 PH |
312 | #endif |
313 | ||
314 | #ifndef T_SRV | |
c007c974 | 315 | # define T_SRV 33 |
059ec3d9 PH |
316 | #endif |
317 | ||
eae0036b PP |
318 | /* Many systems do not have T_SPF. */ |
319 | ||
320 | #ifndef T_SPF | |
c007c974 | 321 | # define T_SPF 99 |
eae0036b PP |
322 | #endif |
323 | ||
1e06383a TL |
324 | /* New TLSA record for DANE */ |
325 | #ifndef T_TLSA | |
c007c974 | 326 | # define T_TLSA 52 |
1e06383a TL |
327 | #endif |
328 | #define MAX_TLSA_EXPANDED_SIZE 8192 | |
329 | ||
ade42478 PH |
330 | /* It seems that some versions of arpa/nameser.h don't define *any* of the |
331 | T_xxx macros, which seem to be non-standard nowadays. Just to be on the safe | |
332 | side, put in definitions for all the ones that Exim uses. */ | |
333 | ||
334 | #ifndef T_A | |
c007c974 | 335 | # define T_A 1 |
ade42478 PH |
336 | #endif |
337 | ||
338 | #ifndef T_CNAME | |
c007c974 | 339 | # define T_CNAME 5 |
ade42478 PH |
340 | #endif |
341 | ||
885ccd3e | 342 | #ifndef T_SOA |
c007c974 | 343 | # define T_SOA 6 |
885ccd3e PH |
344 | #endif |
345 | ||
ade42478 | 346 | #ifndef T_MX |
c007c974 | 347 | # define T_MX 15 |
ade42478 PH |
348 | #endif |
349 | ||
350 | #ifndef T_NS | |
c007c974 | 351 | # define T_NS 2 |
ade42478 PH |
352 | #endif |
353 | ||
354 | #ifndef T_PTR | |
c007c974 | 355 | # define T_PTR 12 |
ade42478 PH |
356 | #endif |
357 | ||
358 | ||
e5a9dba6 PH |
359 | /* We define a few private types for special DNS lookups: |
360 | ||
361 | . T_ZNS gets the nameservers of the enclosing zone of a domain | |
362 | ||
363 | . T_MXH gets the MX hostnames only (without their priorities) | |
364 | ||
365 | . T_CSA gets the domain's Client SMTP Authorization SRV record | |
366 | ||
66be95e0 PP |
367 | . T_ADDRESSES looks up both AAAA (or A6) and A records |
368 | ||
369 | If any of these names appear in the RRtype list at: | |
370 | <http://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml> | |
371 | then we should rename Exim's private type away from the conflict. | |
e5a9dba6 | 372 | */ |
33397d19 PH |
373 | |
374 | #define T_ZNS (-1) | |
ea3bc19b | 375 | #define T_MXH (-2) |
e5a9dba6 | 376 | #define T_CSA (-3) |
66be95e0 | 377 | #define T_ADDRESSES (-4) |
33397d19 | 378 | |
059ec3d9 PH |
379 | /* The resolv.h header defines __P(x) on some Solaris 2.5.1 systems (without |
380 | checking that it is already defined, in fact). This conflicts with other | |
381 | headers that behave likewise (see below), leading to compiler warnings. Arrange | |
382 | to undefine it if resolv.h defines it. */ | |
383 | ||
384 | #if defined(__P) | |
c007c974 | 385 | # define __P_WAS_DEFINED_BEFORE_RESOLV |
059ec3d9 PH |
386 | #endif |
387 | ||
388 | #include <resolv.h> | |
389 | ||
390 | #if defined(__P) && ! defined (__P_WAS_DEFINED_BEFORE_RESOLV) | |
c007c974 | 391 | # undef __P |
059ec3d9 PH |
392 | #endif |
393 | ||
5bfb4cdf PP |
394 | /* If not defined by os.h, we do nothing special to push DNS resolver state |
395 | back to be available by the classic resolver routines. Also, provide | |
396 | prototype for our get routine, unless defined away. */ | |
397 | ||
398 | #ifndef os_put_dns_resolver_res | |
399 | # define os_put_dns_resolver_res(R) do {/**/} while(0) | |
400 | #endif | |
401 | #ifndef os_get_dns_resolver_res | |
402 | res_state os_get_dns_resolver_res(void); | |
403 | #endif | |
404 | ||
059ec3d9 PH |
405 | /* These three are to support the IP option logging code. Linux is |
406 | different to everyone else and there are also other systems which don't | |
407 | have netinet/ip_var.h, so there's a general macro to control its inclusion. */ | |
408 | ||
409 | #include <netinet/in_systm.h> | |
410 | #include <netinet/ip.h> | |
411 | ||
412 | #ifndef NO_IP_VAR_H | |
c007c974 | 413 | # include <netinet/ip_var.h> |
059ec3d9 PH |
414 | #endif |
415 | ||
416 | /* Linux (and some others) uses a different type for the 2nd argument of | |
417 | iconv(). It's os.h file defines ICONV_ARG2_TYPE. For the rest, define a default | |
418 | here. */ | |
419 | ||
420 | #ifndef ICONV_ARG2_TYPE | |
9c19b270 | 421 | # define ICONV_ARG2_TYPE char ** |
059ec3d9 PH |
422 | #endif |
423 | ||
424 | /* One OS uses a different type for the 5th argument of getsockopt */ | |
425 | ||
426 | #ifndef GETSOCKOPT_ARG5_TYPE | |
c007c974 | 427 | # define GETSOCKOPT_ARG5_TYPE socklen_t * |
059ec3d9 PH |
428 | #endif |
429 | ||
430 | /* One operating system uses a different type for the 2nd argument of select(). | |
431 | Its os.h file defines SELECT_ARG2_TYPE. For the rest, define a default here. */ | |
432 | ||
433 | #ifndef SELECT_ARG2_TYPE | |
c007c974 | 434 | # define SELECT_ARG2_TYPE fd_set |
059ec3d9 PH |
435 | #endif |
436 | ||
437 | /* One operating system uses a different type for the 4th argument of | |
438 | dn_expand(). Its os.h file defines DN_EXPAND_ARG4_TYPE. For the rest, define a | |
439 | default here. */ | |
440 | ||
441 | #ifndef DN_EXPAND_ARG4_TYPE | |
c007c974 | 442 | # define DN_EXPAND_ARG4_TYPE char * |
059ec3d9 PH |
443 | #endif |
444 | ||
445 | /* One operating system defines a different type for the yield of inet_addr(). | |
446 | In Exim code, its value is always assigned to the s_addr members of address | |
447 | structures. Casting the yield to the type of s_addr should fix the problem, | |
448 | since the size of the data is correct. Just in case this ever has to be | |
449 | changed, use a macro for the type, and define it here so that it is possible to | |
450 | use different values for specific OS if ever necessary. */ | |
451 | ||
452 | #ifndef S_ADDR_TYPE | |
c007c974 | 453 | # define S_ADDR_TYPE u_long |
059ec3d9 PH |
454 | #endif |
455 | ||
456 | /* (At least) one operating system (Solaris) defines a different type for the | |
457 | second argument of pam_converse() - the difference is the absence of "const". | |
458 | Its os.h file defines PAM_CONVERSE_ARG2_TYPE. For the rest, define a default | |
459 | here. */ | |
460 | ||
461 | #ifndef PAM_CONVERSE_ARG2_TYPE | |
c007c974 | 462 | # define PAM_CONVERSE_ARG2_TYPE const struct pam_message |
059ec3d9 PH |
463 | #endif |
464 | ||
465 | /* One operating system (SunOS4) defines getc, ungetc, feof, and ferror as | |
466 | macros and not as functions. Exim needs them to be assignable functions. This | |
467 | flag gets set to cause this to be sorted out here. */ | |
468 | ||
469 | #ifdef FUDGE_GETC_AND_FRIENDS | |
c007c974 | 470 | # undef getc |
059ec3d9 | 471 | extern int getc(FILE *); |
c007c974 | 472 | # undef ungetc |
059ec3d9 | 473 | extern int ungetc(int, FILE *); |
c007c974 | 474 | # undef feof |
059ec3d9 | 475 | extern int feof(FILE *); |
c007c974 | 476 | # undef ferror |
059ec3d9 PH |
477 | extern int ferror(FILE *); |
478 | #endif | |
479 | ||
480 | /* The header from the PCRE regex package */ | |
481 | ||
8eb9f5bd | 482 | #include <pcre.h> |
059ec3d9 PH |
483 | |
484 | /* Exim includes are in several files. Note that local_scan.h #includes | |
750af86e PH |
485 | config.h, mytypes.h, and store.h, so we don't need to mention them explicitly. |
486 | */ | |
8523533c | 487 | |
059ec3d9 PH |
488 | #include "local_scan.h" |
489 | #include "macros.h" | |
059ec3d9 PH |
490 | #include "dbstuff.h" |
491 | #include "structs.h" | |
492 | #include "globals.h" | |
493 | #include "functions.h" | |
494 | #include "dbfunctions.h" | |
495 | #include "osfunctions.h" | |
496 | ||
8523533c | 497 | #ifdef EXPERIMENTAL_BRIGHTMAIL |
c007c974 | 498 | # include "bmi_spam.h" |
8523533c TK |
499 | #endif |
500 | #ifdef EXPERIMENTAL_SPF | |
c007c974 | 501 | # include "spf.h" |
8523533c TK |
502 | #endif |
503 | #ifdef EXPERIMENTAL_SRS | |
c007c974 | 504 | # include "srs.h" |
8523533c | 505 | #endif |
80a47a2c | 506 | #ifndef DISABLE_DKIM |
c007c974 | 507 | # include "dkim.h" |
f7572e5a | 508 | #endif |
4840604e | 509 | #ifdef EXPERIMENTAL_DMARC |
c007c974 JH |
510 | # include "dmarc.h" |
511 | # include <opendmarc/dmarc.h> | |
4840604e | 512 | #endif |
8523533c | 513 | |
059ec3d9 PH |
514 | /* The following stuff must follow the inclusion of config.h because it |
515 | requires various things that are set therein. */ | |
516 | ||
517 | #if HAVE_ICONV /* Not all OS have this */ | |
c007c974 | 518 | # include <iconv.h> |
059ec3d9 PH |
519 | #endif |
520 | ||
379120bf | 521 | #if defined(USE_READLINE) || defined(EXPAND_DLFUNC) || defined (LOOKUP_MODULE_DIR) |
c007c974 | 522 | # include <dlfcn.h> |
059ec3d9 PH |
523 | #endif |
524 | ||
54fc8428 | 525 | #ifdef ENABLE_DISABLE_FSYNC |
c007c974 | 526 | # define EXIMfsync(f) (disable_fsync? 0 : fsync(f)) |
54fc8428 | 527 | #else |
c007c974 | 528 | # define EXIMfsync(f) fsync(f) |
54fc8428 PH |
529 | #endif |
530 | ||
059ec3d9 PH |
531 | /* Backward compatibility; LOOKUP_LSEARCH now includes all three */ |
532 | ||
533 | #if (!defined LOOKUP_LSEARCH) && (defined LOOKUP_WILDLSEARCH || defined LOOKUP_NWILDLSEARCH) | |
c007c974 | 534 | # define LOOKUP_LSEARCH yes |
059ec3d9 PH |
535 | #endif |
536 | ||
537 | /* Define a union to hold either an IPv4 or an IPv6 sockaddr structure; this | |
52ba4661 PP |
538 | simplifies some of the coding. We include the sockaddr to reduce type-punning |
539 | issues in C99. */ | |
059ec3d9 PH |
540 | |
541 | union sockaddr_46 { | |
542 | struct sockaddr_in v4; | |
543 | #if HAVE_IPV6 | |
544 | struct sockaddr_in6 v6; | |
545 | #endif | |
52ba4661 | 546 | struct sockaddr v0; |
059ec3d9 PH |
547 | }; |
548 | ||
549 | /* If SUPPORT_TLS is not defined, ensure that USE_GNUTLS is also not defined | |
550 | so that if USE_GNUTLS *is* set, we can assume SUPPORT_TLS is also set. */ | |
551 | ||
552 | #ifndef SUPPORT_TLS | |
c007c974 | 553 | # undef USE_GNUTLS |
059ec3d9 PH |
554 | #endif |
555 | ||
556 | /* If SPOOL_DIRECTORY, LOG_FILE_PATH or PID_FILE_PATH have not been defined, | |
557 | set them to the null string. */ | |
558 | ||
559 | #ifndef SPOOL_DIRECTORY | |
560 | #define SPOOL_DIRECTORY "" | |
561 | #endif | |
562 | #ifndef LOG_FILE_PATH | |
563 | #define LOG_FILE_PATH "" | |
564 | #endif | |
565 | #ifndef PID_FILE_PATH | |
566 | #define PID_FILE_PATH "" | |
567 | #endif | |
568 | ||
569 | /* The EDQUOT error code isn't universally available, though it is widespread. | |
570 | There is a particular shambles in SunOS5, where it did not exist originally, | |
571 | but got installed with a particular patch for Solaris 2.4. There is a | |
572 | configuration variable for specifying what the system's "over quota" error is, | |
573 | which will end up in config.h if supplied in OS/Makefile-xxx. If it is not set, | |
574 | default to EDQUOT if it exists, otherwise ENOSPC. */ | |
575 | ||
576 | #ifndef ERRNO_QUOTA | |
c007c974 JH |
577 | # ifdef EDQUOT |
578 | # define ERRNO_QUOTA EDQUOT | |
579 | # else | |
580 | # define ERRNO_QUOTA ENOSPC | |
581 | # endif | |
059ec3d9 PH |
582 | #endif |
583 | ||
584 | /* Ensure PATH_MAX is defined */ | |
585 | ||
586 | #ifndef PATH_MAX | |
587 | #ifdef MAXPATHLEN | |
c007c974 | 588 | # define PATH_MAX MAXPATHLEN |
059ec3d9 | 589 | #else |
c007c974 | 590 | # define PATH_MAX 1024 |
059ec3d9 PH |
591 | #endif |
592 | #endif | |
593 | ||
afe12dd0 HSHR |
594 | /* DANE w/o DNSSEC is useless */ |
595 | #if defined(EXPERIMENTAL_DANE) && defined(DISABLE_DNSSEC) | |
596 | #undef DISABLE_DNSSEC | |
597 | #endif | |
598 | ||
059ec3d9 | 599 | /* End of exim.h */ |