2 Unix SMB/CIFS implementation.
4 macros to go along with the lib/replace/ portability layer code
6 Copyright (C) Andrew Tridgell 2005
7 Copyright (C) Jelmer Vernooij 2006
8 Copyright (C) Jeremy Allison 2007.
10 ** NOTE! The following LGPL license applies to the replace
11 ** library. This does NOT imply that all of Samba is released
14 This library is free software; you can redistribute it and/or
15 modify it under the terms of the GNU Lesser General Public
16 License as published by the Free Software Foundation; either
17 version 3 of the License, or (at your option) any later version.
19 This library is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 Lesser General Public License for more details.
24 You should have received a copy of the GNU Lesser General Public
25 License along with this library; if not, see <http://www.gnu.org/licenses/>.
28 #ifndef _LIBREPLACE_REPLACE_H
29 #define _LIBREPLACE_REPLACE_H
35 #ifdef HAVE_STANDARDS_H
36 #include <standards.h>
44 #if defined(_MSC_VER) || defined(__MINGW32__)
45 #include "win32_replace.h"
51 /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
52 which causes a warning storm on irix */
53 #undef HAVE_INTTYPES_H
55 #define __STDC_FORMAT_MACROS
59 #ifndef __PRI64_PREFIX
61 # define __PRI64_PREFIX "l"
63 # define __PRI64_PREFIX "ll"
67 /* Decimal notation. */
78 # define PRId64 __PRI64_PREFIX "d"
91 # define PRIi64 __PRI64_PREFIX "i"
104 # define PRIu64 __PRI64_PREFIX "u"
111 #ifdef HAVE_STRINGS_H
115 #ifdef HAVE_SYS_TYPES_H
116 #include <sys/types.h>
124 #ifndef HAVE_STRERROR
125 extern char *sys_errlist[];
126 #define strerror(i) sys_errlist[i]
129 #ifndef HAVE_ERRNO_DECL
134 #define strdup rep_strdup
135 char *rep_strdup(const char *s);
139 #define memmove rep_memmove
140 void *rep_memmove(void *dest,const void *src,int size);
144 #define mktime rep_mktime
145 /* prototype is in "system/time.h" */
149 #define timegm rep_timegm
150 /* prototype is in "system/time.h" */
154 #define utime rep_utime
155 /* prototype is in "system/time.h" */
159 #define utimes rep_utimes
160 /* prototype is in "system/time.h" */
164 #define strlcpy rep_strlcpy
165 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
169 #define strlcat rep_strlcat
170 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
173 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
175 #define strndup rep_strndup
176 char *rep_strndup(const char *s, size_t n);
179 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
181 #define strnlen rep_strnlen
182 size_t rep_strnlen(const char *s, size_t n);
186 #define setenv rep_setenv
187 int rep_setenv(const char *name, const char *value, int overwrite);
189 #ifndef HAVE_SETENV_DECL
190 int setenv(const char *name, const char *value, int overwrite);
194 #ifndef HAVE_UNSETENV
195 #define unsetenv rep_unsetenv
196 int rep_unsetenv(const char *name);
200 #define seteuid rep_seteuid
201 int rep_seteuid(uid_t);
205 #define setegid rep_setegid
206 int rep_setegid(gid_t);
209 #ifndef HAVE_SETLINEBUF
210 #define setlinebuf rep_setlinebuf
211 void rep_setlinebuf(FILE *);
214 #ifndef HAVE_STRCASESTR
215 #define strcasestr rep_strcasestr
216 char *rep_strcasestr(const char *haystack, const char *needle);
219 #ifndef HAVE_STRTOK_R
220 #define strtok_r rep_strtok_r
221 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
225 #define strtoll rep_strtoll
226 long long int rep_strtoll(const char *str, char **endptr, int base);
229 #ifndef HAVE_STRTOULL
230 #define strtoull rep_strtoull
231 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
234 #ifndef HAVE_FTRUNCATE
235 #define ftruncate rep_ftruncate
236 int rep_ftruncate(int,off_t);
239 #ifndef HAVE_INITGROUPS
240 #define initgroups rep_initgroups
241 int rep_initgroups(char *name, gid_t id);
244 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
245 #define bzero(a,b) memset((a),'\0',(b))
249 #define dlerror rep_dlerror
250 char *rep_dlerror(void);
254 #define dlopen rep_dlopen
255 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
256 void *rep_dlopen(const char *name, unsigned int flags);
258 void *rep_dlopen(const char *name, int flags);
263 #define dlsym rep_dlsym
264 void *rep_dlsym(void *handle, const char *symbol);
268 #define dlclose rep_dlclose
269 int rep_dlclose(void *handle);
272 #ifndef HAVE_SOCKETPAIR
273 #define socketpair rep_socketpair
274 /* prototype is in system/network.h */
277 #ifndef PRINTF_ATTRIBUTE
278 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
279 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
280 * the parameter containing the format, and a2 the index of the first
281 * argument. Note that some gcc 2.x versions don't handle this
283 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
285 #define PRINTF_ATTRIBUTE(a1, a2)
290 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
291 #define _DEPRECATED_ __attribute__ ((deprecated))
297 #ifndef HAVE_VASPRINTF
298 #define vasprintf rep_vasprintf
299 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
302 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
303 #define snprintf rep_snprintf
304 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
307 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
308 #define vsnprintf rep_vsnprintf
309 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
312 #ifndef HAVE_ASPRINTF
313 #define asprintf rep_asprintf
314 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
319 #define vsyslog rep_vsyslog
320 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
324 /* we used to use these fns, but now we have good replacements
325 for snprintf and vsnprintf */
326 #define slprintf snprintf
331 #ifdef HAVE___VA_COPY
332 #define va_copy(dest, src) __va_copy(dest, src)
334 #define va_copy(dest, src) (dest) = (src)
338 #ifndef HAVE_VOLATILE
342 #ifndef HAVE_COMPARISON_FN_T
343 typedef int (*comparison_fn_t)(const void *, const void *);
346 #ifdef REPLACE_STRPTIME
347 #define strptime rep_strptime
349 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
352 /* Load header file for dynamic linking stuff */
364 #define RTLD_GLOBAL 0
367 #ifndef HAVE_SECURE_MKSTEMP
368 #define mkstemp(path) rep_mkstemp(path)
369 int rep_mkstemp(char *temp);
373 #define mkdtemp rep_mkdtemp
374 char *rep_mkdtemp(char *template);
378 #define pread rep_pread
379 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
383 #define pwrite rep_pwrite
384 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
387 #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
388 #define inet_ntoa rep_inet_ntoa
389 /* prototype is in "system/network.h" */
392 #ifndef HAVE_INET_PTON
393 #define inet_pton rep_inet_pton
394 /* prototype is in "system/network.h" */
397 #ifndef HAVE_INET_NTOP
398 #define inet_ntop rep_inet_ntop
399 /* prototype is in "system/network.h" */
402 #ifndef HAVE_INET_ATON
403 #define inet_aton rep_inet_aton
404 /* prototype is in "system/network.h" */
408 #define connect rep_connect
409 /* prototype is in "system/network.h" */
412 #ifndef HAVE_GETHOSTBYNAME
413 #define gethostbyname rep_gethostbyname
414 /* prototype is in "system/network.h" */
417 #ifndef HAVE_GETIFADDRS
418 #define getifaddrs rep_getifaddrs
419 /* prototype is in "system/network.h" */
422 #ifndef HAVE_FREEIFADDRS
423 #define freeifaddrs rep_freeifaddrs
424 /* prototype is in "system/network.h" */
431 #ifdef HAVE_SYS_PARAM_H
432 #include <sys/param.h>
435 /* The extra casts work around common compiler bugs. */
436 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
437 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
438 It is necessary at least when t == time_t. */
439 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
440 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
441 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
443 #ifndef HOST_NAME_MAX
444 #define HOST_NAME_MAX 255
448 * Some older systems seem not to have MAXHOSTNAMELEN
451 #ifndef MAXHOSTNAMELEN
452 #define MAXHOSTNAMELEN HOST_NAME_MAX
456 #define UINT16_MAX 65535
460 #define UINT32_MAX (4294967295U)
464 #define UINT64_MAX ((uint64_t)-1)
472 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
475 #ifdef HAVE_STDBOOL_H
479 #if !defined(HAVE_BOOL)
488 * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
490 * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
491 * Tru64 needs _BOOL_EXISTS
492 * AIX needs _BOOL,_TRUE,_FALSE
504 #ifndef __bool_true_false_are_defined
505 #define __bool_true_false_are_defined
522 #ifndef HAVE_FUNCTION_MACRO
523 #ifdef HAVE_func_MACRO
524 #define __FUNCTION__ __func__
526 #define __FUNCTION__ ("")
532 #define MIN(a,b) ((a)<(b)?(a):(b))
536 #define MAX(a,b) ((a)>(b)?(a):(b))
539 #if !defined(HAVE_VOLATILE)
544 this is a warning hack. The idea is to use this everywhere that we
545 get the "discarding const" warning from gcc. That doesn't actually
546 fix the problem of course, but it means that when we do get to
547 cleaning them up we can do it by searching the code for
550 It also means that other error types aren't as swamped by the noise
551 of hundreds of const warnings, so we are more likely to notice when
554 Please only add more uses of this macro when you find it
555 _really_ hard to fix const warnings. Our aim is to eventually use
556 this function in only a very few places.
558 Also, please call this via the discard_const_p() macro interface, as that
559 makes the return type safe.
561 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
563 /** Type-safe version of discard_const */
564 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
567 #define __STRING(x) #x
570 #ifndef __STRINGSTRING
571 #define __STRINGSTRING(x) __STRING(x)
575 #define __LINESTR__ __STRINGSTRING(__LINE__)
579 #define __location__ __FILE__ ":" __LINESTR__
585 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
588 * zero a structure given a pointer to the structure
590 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
593 * zero a structure given a pointer to the structure - no zero check
595 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
597 /* zero an array - note that sizeof(array) must work - ie. it must not be a
599 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
602 * work out how many elements there are in a static array
604 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
607 * pointer difference macro
609 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
616 #define QSORT_CAST (__compar_fn_t)
620 #define QSORT_CAST (int (*)(const void *, const void *))
624 #define PATH_MAX 1024
627 #ifndef MAX_DNS_NAME_LENGTH
628 #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
632 char *ufc_crypt(const char *key, const char *salt);
633 #define crypt ufc_crypt
640 #endif /* _LIBREPLACE_REPLACE_H */