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
66 #ifdef HAVE_SYS_TYPES_H
67 #include <sys/types.h>
76 extern char *sys_errlist[];
77 #define strerror(i) sys_errlist[i]
80 #ifndef HAVE_ERRNO_DECL
85 #define strdup rep_strdup
86 char *rep_strdup(const char *s);
90 #define memmove rep_memmove
91 void *rep_memmove(void *dest,const void *src,int size);
95 #define mktime rep_mktime
96 /* prototype is in "system/time.h" */
101 #define timegm rep_timegm
102 /* prototype is in "system/time.h" */
106 #define strlcpy rep_strlcpy
107 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
111 #define strlcat rep_strlcat
112 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
115 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
117 #define strndup rep_strndup
118 char *rep_strndup(const char *s, size_t n);
121 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
123 #define strnlen rep_strnlen
124 size_t rep_strnlen(const char *s, size_t n);
128 #define setenv rep_setenv
129 int rep_setenv(const char *name, const char *value, int overwrite);
131 #ifndef HAVE_SETENV_DECL
132 int setenv(const char *name, const char *value, int overwrite);
136 #ifndef HAVE_UNSETENV
137 #define unsetenv rep_unsetenv
138 int rep_unsetenv(const char *name);
142 #define seteuid rep_seteuid
143 int rep_seteuid(uid_t);
147 #define setegid rep_setegid
148 int rep_setegid(gid_t);
151 #ifndef HAVE_SETLINEBUF
152 #define setlinebuf rep_setlinebuf
153 void rep_setlinebuf(FILE *);
156 #ifndef HAVE_STRCASESTR
157 #define strcasestr rep_strcasestr
158 char *rep_strcasestr(const char *haystack, const char *needle);
161 #ifndef HAVE_STRTOK_R
162 #define strtok_r rep_strtok_r
163 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
167 #define strtoll rep_strtoll
168 long long int rep_strtoll(const char *str, char **endptr, int base);
171 #ifndef HAVE_STRTOULL
172 #define strtoull rep_strtoull
173 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
176 #ifndef HAVE_FTRUNCATE
177 #define ftruncate rep_ftruncate
178 int rep_ftruncate(int,off_t);
181 #ifndef HAVE_INITGROUPS
182 #define initgroups rep_initgroups
183 int rep_initgroups(char *name, gid_t id);
186 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
187 #define bzero(a,b) memset((a),'\0',(b))
191 #define dlerror rep_dlerror
192 char *rep_dlerror(void);
196 #define dlopen rep_dlopen
197 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
198 void *rep_dlopen(const char *name, unsigned int flags);
200 void *rep_dlopen(const char *name, int flags);
205 #define dlsym rep_dlsym
206 void *rep_dlsym(void *handle, const char *symbol);
210 #define dlclose rep_dlclose
211 int rep_dlclose(void *handle);
214 #ifndef HAVE_SOCKETPAIR
215 #define socketpair rep_socketpair
216 int rep_socketpair(int d, int type, int protocol, int sv[2]);
219 #ifndef PRINTF_ATTRIBUTE
220 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
221 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
222 * the parameter containing the format, and a2 the index of the first
223 * argument. Note that some gcc 2.x versions don't handle this
225 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
227 #define PRINTF_ATTRIBUTE(a1, a2)
232 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
233 #define _DEPRECATED_ __attribute__ ((deprecated))
239 #ifndef HAVE_VASPRINTF
240 #define vasprintf rep_vasprintf
241 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
244 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
245 #define snprintf rep_snprintf
246 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
249 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
250 #define vsnprintf rep_vsnprintf
251 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
254 #ifndef HAVE_ASPRINTF
255 #define asprintf rep_asprintf
256 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
261 #define vsyslog rep_vsyslog
262 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
266 /* we used to use these fns, but now we have good replacements
267 for snprintf and vsnprintf */
268 #define slprintf snprintf
273 #ifdef HAVE___VA_COPY
274 #define va_copy(dest, src) __va_copy(dest, src)
276 #define va_copy(dest, src) (dest) = (src)
280 #ifndef HAVE_VOLATILE
284 #ifndef HAVE_COMPARISON_FN_T
285 typedef int (*comparison_fn_t)(const void *, const void *);
288 #ifdef REPLACE_STRPTIME
289 #define strptime rep_strptime
291 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
294 /* Load header file for dynamic linking stuff */
306 #define RTLD_GLOBAL 0
309 #ifndef HAVE_SECURE_MKSTEMP
310 #define mkstemp(path) rep_mkstemp(path)
311 int rep_mkstemp(char *temp);
315 #define mkdtemp rep_mkdtemp
316 char *rep_mkdtemp(char *template);
320 #define pread rep_pread
321 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
325 #define pwrite rep_pwrite
326 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
329 #ifndef HAVE_INET_PTON
330 int rep_inet_pton(int af, const char *src, void *dst);
331 #define inet_pton rep_inet_pton
334 #ifndef HAVE_INET_NTOP
335 #include "system/network.h"
336 const char *rep_inet_ntop(int af, const void *src, char *dst, socklen_t size);
337 #define inet_ntop rep_inet_ntop
344 #ifdef HAVE_SYS_PARAM_H
345 #include <sys/param.h>
348 /* The extra casts work around common compiler bugs. */
349 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
350 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
351 It is necessary at least when t == time_t. */
352 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
353 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
354 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
356 #ifndef HOST_NAME_MAX
357 #define HOST_NAME_MAX 64
361 * Some older systems seem not to have MAXHOSTNAMELEN
364 #ifndef MAXHOSTNAMELEN
365 #define MAXHOSTNAMELEN HOST_NAME_MAX
369 #define UINT16_MAX 65535
373 #define UINT32_MAX (4294967295U)
377 #define UINT64_MAX ((uint64_t)-1)
385 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
388 #ifdef HAVE_STDBOOL_H
392 #if !defined(HAVE_BOOL)
401 * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
403 * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
404 * Tru64 needs _BOOL_EXISTS
405 * AIX needs _BOOL,_TRUE,_FALSE
417 #ifndef __bool_true_false_are_defined
418 #define __bool_true_false_are_defined
435 #ifndef HAVE_FUNCTION_MACRO
436 #ifdef HAVE_func_MACRO
437 #define __FUNCTION__ __func__
439 #define __FUNCTION__ ("")
445 #define MIN(a,b) ((a)<(b)?(a):(b))
449 #define MAX(a,b) ((a)>(b)?(a):(b))
453 this is a warning hack. The idea is to use this everywhere that we
454 get the "discarding const" warning from gcc. That doesn't actually
455 fix the problem of course, but it means that when we do get to
456 cleaning them up we can do it by searching the code for
459 It also means that other error types aren't as swamped by the noise
460 of hundreds of const warnings, so we are more likely to notice when
463 Please only add more uses of this macro when you find it
464 _really_ hard to fix const warnings. Our aim is to eventually use
465 this function in only a very few places.
467 Also, please call this via the discard_const_p() macro interface, as that
468 makes the return type safe.
470 #define discard_const(ptr) ((void *)((intptr_t)(ptr)))
472 /** Type-safe version of discard_const */
473 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
476 #define __STRING(x) #x
479 #ifndef __STRINGSTRING
480 #define __STRINGSTRING(x) __STRING(x)
484 #define __LINESTR__ __STRINGSTRING(__LINE__)
488 #define __location__ __FILE__ ":" __LINESTR__
494 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
497 * zero a structure given a pointer to the structure
499 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
502 * zero a structure given a pointer to the structure - no zero check
504 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
506 /* zero an array - note that sizeof(array) must work - ie. it must not be a
508 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
511 * work out how many elements there are in a static array
513 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
516 * pointer difference macro
518 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
525 #define QSORT_CAST (__compar_fn_t)
529 #define QSORT_CAST (int (*)(const void *, const void *))
532 #endif /* _LIBREPLACE_REPLACE_H */