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);
185 #if !HAVE_DECL_ENVIRON
187 #include <crt_externs.h>
188 #define environ (*_NSGetEnviron())
190 extern char **environ;
195 #define setenv rep_setenv
196 int rep_setenv(const char *name, const char *value, int overwrite);
198 #ifndef HAVE_SETENV_DECL
199 int setenv(const char *name, const char *value, int overwrite);
203 #ifndef HAVE_UNSETENV
204 #define unsetenv rep_unsetenv
205 int rep_unsetenv(const char *name);
209 #define seteuid rep_seteuid
210 int rep_seteuid(uid_t);
214 #define setegid rep_setegid
215 int rep_setegid(gid_t);
219 #define chown rep_chown
220 int rep_chown(const char *path, uid_t uid, gid_t gid);
224 #define chroot rep_chroot
225 int rep_chroot(const char *dirname);
229 #define link rep_link
230 int rep_link(const char *oldpath, const char *newpath);
233 #ifndef HAVE_READLINK
234 #define readlink rep_readlink
235 int rep_readlink(const char *path, char *buf, size_t bufsize);
239 #define symlink rep_symlink
240 int rep_symlink(const char *oldpath, const char *newpath);
243 #ifndef HAVE_REALPATH
244 #define realpath rep_realpath
245 char *rep_realpath(const char *path, char *resolved_path);
249 #define lchown rep_lchown
250 int rep_lchown(const char *fname,uid_t uid,gid_t gid);
253 #ifndef HAVE_SETLINEBUF
254 #define setlinebuf rep_setlinebuf
255 void rep_setlinebuf(FILE *);
258 #ifndef HAVE_STRCASESTR
259 #define strcasestr rep_strcasestr
260 char *rep_strcasestr(const char *haystack, const char *needle);
263 #ifndef HAVE_STRTOK_R
264 #define strtok_r rep_strtok_r
265 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
269 #define strtoll rep_strtoll
270 long long int rep_strtoll(const char *str, char **endptr, int base);
273 #ifndef HAVE_STRTOULL
274 #define strtoull rep_strtoull
275 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
278 #ifndef HAVE_FTRUNCATE
279 #define ftruncate rep_ftruncate
280 int rep_ftruncate(int,off_t);
283 #ifndef HAVE_INITGROUPS
284 #define initgroups rep_initgroups
285 int rep_initgroups(char *name, gid_t id);
288 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
289 #define bzero(a,b) memset((a),'\0',(b))
293 #define dlerror rep_dlerror
294 char *rep_dlerror(void);
298 #define dlopen rep_dlopen
299 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
300 void *rep_dlopen(const char *name, unsigned int flags);
302 void *rep_dlopen(const char *name, int flags);
307 #define dlsym rep_dlsym
308 void *rep_dlsym(void *handle, const char *symbol);
312 #define dlclose rep_dlclose
313 int rep_dlclose(void *handle);
316 #ifndef HAVE_SOCKETPAIR
317 #define socketpair rep_socketpair
318 /* prototype is in system/network.h */
321 #ifndef PRINTF_ATTRIBUTE
322 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
323 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
324 * the parameter containing the format, and a2 the index of the first
325 * argument. Note that some gcc 2.x versions don't handle this
327 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
329 #define PRINTF_ATTRIBUTE(a1, a2)
334 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
335 #define _DEPRECATED_ __attribute__ ((deprecated))
341 #ifndef HAVE_VASPRINTF
342 #define vasprintf rep_vasprintf
343 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
346 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
347 #define snprintf rep_snprintf
348 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
351 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
352 #define vsnprintf rep_vsnprintf
353 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
356 #ifndef HAVE_ASPRINTF
357 #define asprintf rep_asprintf
358 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
363 #define vsyslog rep_vsyslog
364 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
368 /* we used to use these fns, but now we have good replacements
369 for snprintf and vsnprintf */
370 #define slprintf snprintf
375 #ifdef HAVE___VA_COPY
376 #define va_copy(dest, src) __va_copy(dest, src)
378 #define va_copy(dest, src) (dest) = (src)
382 #ifndef HAVE_VOLATILE
386 #ifndef HAVE_COMPARISON_FN_T
387 typedef int (*comparison_fn_t)(const void *, const void *);
390 #ifdef REPLACE_STRPTIME
391 #define strptime rep_strptime
393 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
397 #define dup2 rep_dup2
398 int rep_dup2(int oldfd, int newfd);
401 /* Load header file for dynamic linking stuff */
413 #define RTLD_GLOBAL 0
416 #ifndef HAVE_SECURE_MKSTEMP
417 #define mkstemp(path) rep_mkstemp(path)
418 int rep_mkstemp(char *temp);
422 #define mkdtemp rep_mkdtemp
423 char *rep_mkdtemp(char *template);
427 #define pread rep_pread
428 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
432 #define pwrite rep_pwrite
433 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
436 #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
437 #define inet_ntoa rep_inet_ntoa
438 /* prototype is in "system/network.h" */
441 #ifndef HAVE_INET_PTON
442 #define inet_pton rep_inet_pton
443 /* prototype is in "system/network.h" */
446 #ifndef HAVE_INET_NTOP
447 #define inet_ntop rep_inet_ntop
448 /* prototype is in "system/network.h" */
451 #ifndef HAVE_INET_ATON
452 #define inet_aton rep_inet_aton
453 /* prototype is in "system/network.h" */
457 #define connect rep_connect
458 /* prototype is in "system/network.h" */
461 #ifndef HAVE_GETHOSTBYNAME
462 #define gethostbyname rep_gethostbyname
463 /* prototype is in "system/network.h" */
466 #ifndef HAVE_GETIFADDRS
467 #define getifaddrs rep_getifaddrs
468 /* prototype is in "system/network.h" */
471 #ifndef HAVE_FREEIFADDRS
472 #define freeifaddrs rep_freeifaddrs
473 /* prototype is in "system/network.h" */
480 #ifdef HAVE_SYS_PARAM_H
481 #include <sys/param.h>
484 /* The extra casts work around common compiler bugs. */
485 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
486 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
487 It is necessary at least when t == time_t. */
488 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
489 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
490 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
492 #ifndef HOST_NAME_MAX
493 #define HOST_NAME_MAX 255
497 * Some older systems seem not to have MAXHOSTNAMELEN
500 #ifndef MAXHOSTNAMELEN
501 #define MAXHOSTNAMELEN HOST_NAME_MAX
505 #define UINT16_MAX 65535
509 #define UINT32_MAX (4294967295U)
513 #define UINT64_MAX ((uint64_t)-1)
521 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
524 #ifdef HAVE_STDBOOL_H
528 #if !defined(HAVE_BOOL)
537 * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
539 * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
540 * Tru64 needs _BOOL_EXISTS
541 * AIX needs _BOOL,_TRUE,_FALSE
553 #ifndef __bool_true_false_are_defined
554 #define __bool_true_false_are_defined
571 #ifndef HAVE_FUNCTION_MACRO
572 #ifdef HAVE_func_MACRO
573 #define __FUNCTION__ __func__
575 #define __FUNCTION__ ("")
581 #define MIN(a,b) ((a)<(b)?(a):(b))
585 #define MAX(a,b) ((a)>(b)?(a):(b))
588 #if !defined(HAVE_VOLATILE)
593 this is a warning hack. The idea is to use this everywhere that we
594 get the "discarding const" warning from gcc. That doesn't actually
595 fix the problem of course, but it means that when we do get to
596 cleaning them up we can do it by searching the code for
599 It also means that other error types aren't as swamped by the noise
600 of hundreds of const warnings, so we are more likely to notice when
603 Please only add more uses of this macro when you find it
604 _really_ hard to fix const warnings. Our aim is to eventually use
605 this function in only a very few places.
607 Also, please call this via the discard_const_p() macro interface, as that
608 makes the return type safe.
610 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
612 /** Type-safe version of discard_const */
613 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
616 #define __STRING(x) #x
619 #ifndef __STRINGSTRING
620 #define __STRINGSTRING(x) __STRING(x)
624 #define __LINESTR__ __STRINGSTRING(__LINE__)
628 #define __location__ __FILE__ ":" __LINESTR__
634 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
637 * zero a structure given a pointer to the structure
639 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
642 * zero a structure given a pointer to the structure - no zero check
644 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
646 /* zero an array - note that sizeof(array) must work - ie. it must not be a
648 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
651 * work out how many elements there are in a static array
653 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
656 * pointer difference macro
658 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
665 #define QSORT_CAST (__compar_fn_t)
669 #define QSORT_CAST (int (*)(const void *, const void *))
673 #define PATH_MAX 1024
676 #ifndef MAX_DNS_NAME_LENGTH
677 #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
681 char *ufc_crypt(const char *key, const char *salt);
682 #define crypt ufc_crypt
689 #endif /* _LIBREPLACE_REPLACE_H */