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
9 ** NOTE! The following LGPL license applies to the replace
10 ** library. This does NOT imply that all of Samba is released
13 This library is free software; you can redistribute it and/or
14 modify it under the terms of the GNU Lesser General Public
15 License as published by the Free Software Foundation; either
16 version 3 of the License, or (at your option) any later version.
18 This library is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 Lesser General Public License for more details.
23 You should have received a copy of the GNU Lesser General Public
24 License along with this library; if not, write to the Free Software
25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"
49 #define QSORT_CAST (__compar_fn_t)
53 #define QSORT_CAST (int (*)(const void *, const void *))
58 /* force off HAVE_INTTYPES_H so that roken doesn't try to include both,
59 which causes a warning storm on irix */
60 #undef HAVE_INTTYPES_H
73 #ifdef HAVE_SYS_TYPES_H
74 #include <sys/types.h>
83 this is a warning hack. The idea is to use this everywhere that we
84 get the "discarding const" warning from gcc. That doesn't actually
85 fix the problem of course, but it means that when we do get to
86 cleaning them up we can do it by searching the code for
89 It also means that other error types aren't as swamped by the noise
90 of hundreds of const warnings, so we are more likely to notice when
93 Please only add more uses of this macro when you find it
94 _really_ hard to fix const warnings. Our aim is to eventually use
95 this function in only a very few places.
97 Also, please call this via the discard_const_p() macro interface, as that
98 makes the return type safe.
100 #define discard_const(ptr) ((void *)((intptr_t)(ptr)))
102 /** Type-safe version of discard_const */
103 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
105 #ifndef HAVE_STRERROR
106 extern char *sys_errlist[];
107 #define strerror(i) sys_errlist[i]
110 #ifndef HAVE_ERRNO_DECL
115 #define strdup rep_strdup
116 char *rep_strdup(const char *s);
120 #define memmove rep_memmove
121 void *rep_memmove(void *dest,const void *src,int size);
124 #if !defined(HAVE_MKTIME) || !defined(HAVE_TIMEGM)
125 #include "system/time.h"
129 #define mktime rep_mktime
130 time_t rep_mktime(struct tm *t);
135 #define timegm rep_timegm
136 time_t rep_timegm(struct tm *tm);
140 #define strlcpy rep_strlcpy
141 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
145 #define strlcat rep_strlcat
146 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
149 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
151 #define strndup rep_strndup
152 char *rep_strndup(const char *s, size_t n);
155 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
157 #define strnlen rep_strnlen
158 size_t rep_strnlen(const char *s, size_t n);
162 #define setenv rep_setenv
163 int rep_setenv(const char *name, const char *value, int overwrite);
165 #ifndef HAVE_SETENV_DECL
166 int setenv(const char *name, const char *value, int overwrite);
170 #ifndef HAVE_UNSETENV
171 #define unsetenv rep_unsetenv
172 int rep_unsetenv(const char *name);
176 #define seteuid rep_seteuid
177 int rep_seteuid(uid_t);
181 #define setegid rep_setegid
182 int rep_setegid(gid_t);
185 #ifndef HAVE_SETLINEBUF
186 #define setlinebuf rep_setlinebuf
187 void rep_setlinebuf(FILE *);
190 #ifndef HAVE_STRCASESTR
191 #define strcasestr rep_strcasestr
192 char *rep_strcasestr(const char *haystack, const char *needle);
195 #ifndef HAVE_STRTOK_R
196 #define strtok_r rep_strtok_r
197 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
201 #define strtoll rep_strtoll
202 long long int rep_strtoll(const char *str, char **endptr, int base);
205 #ifndef HAVE_STRTOULL
206 #define strtoull rep_strtoull
207 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
210 #ifndef HAVE_FTRUNCATE
211 #define ftruncate rep_ftruncate
212 int rep_ftruncate(int,off_t);
215 #ifndef HAVE_INITGROUPS
216 #define initgroups rep_initgroups
217 int rep_initgroups(char *name, gid_t id);
220 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
221 #define bzero(a,b) memset((a),'\0',(b))
225 #define dlerror rep_dlerror
226 char *rep_dlerror(void);
230 #define dlopen rep_dlopen
231 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
232 void *rep_dlopen(const char *name, unsigned int flags);
234 void *rep_dlopen(const char *name, int flags);
239 #define dlsym rep_dlsym
240 void *rep_dlsym(void *handle, const char *symbol);
244 #define dlclose rep_dlclose
245 int rep_dlclose(void *handle);
248 #ifndef HAVE_SOCKETPAIR
249 #define socketpair rep_socketpair
250 int rep_socketpair(int d, int type, int protocol, int sv[2]);
253 #ifndef PRINTF_ATTRIBUTE
254 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
255 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
256 * the parameter containing the format, and a2 the index of the first
257 * argument. Note that some gcc 2.x versions don't handle this
259 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
261 #define PRINTF_ATTRIBUTE(a1, a2)
266 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
267 #define _DEPRECATED_ __attribute__ ((deprecated))
273 #ifndef HAVE_VASPRINTF
274 #define vasprintf rep_vasprintf
275 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
278 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
279 #define snprintf rep_snprintf
280 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
283 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
284 #define vsnprintf rep_vsnprintf
285 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
288 #ifndef HAVE_ASPRINTF
289 #define asprintf rep_asprintf
290 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
295 #define vsyslog rep_vsyslog
296 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
300 /* we used to use these fns, but now we have good replacements
301 for snprintf and vsnprintf */
302 #define slprintf snprintf
307 #ifdef HAVE___VA_COPY
308 #define va_copy(dest, src) __va_copy(dest, src)
310 #define va_copy(dest, src) (dest) = (src)
314 #ifndef HAVE_VOLATILE
318 #ifndef HAVE_COMPARISON_FN_T
319 typedef int (*comparison_fn_t)(const void *, const void *);
322 #ifdef REPLACE_STRPTIME
323 #define strptime rep_strptime
325 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
328 /* Load header file for dynamic linking stuff */
340 #define RTLD_GLOBAL 0
343 #ifndef HAVE_SECURE_MKSTEMP
344 #define mkstemp(path) rep_mkstemp(path)
345 int rep_mkstemp(char *temp);
349 #define mkdtemp rep_mkdtemp
350 char *rep_mkdtemp(char *template);
354 #define pread rep_pread
355 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
359 #define pwrite rep_pwrite
360 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
367 /* The extra casts work around common compiler bugs. */
368 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
369 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
370 It is necessary at least when t == time_t. */
371 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
372 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
373 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
375 #ifndef HOST_NAME_MAX
376 #define HOST_NAME_MAX 64
380 #define UINT16_MAX 65535
384 #define UINT32_MAX (4294967295U)
388 #define UINT64_MAX ((uint64_t)-1)
396 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
399 #ifdef HAVE_STDBOOL_H
403 #if !defined(HAVE_BOOL)
412 * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
414 * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
415 * Tru64 needs _BOOL_EXISTS
416 * AIX needs _BOOL,_TRUE,_FALSE
428 #ifndef __bool_true_false_are_defined
429 #define __bool_true_false_are_defined
446 #ifndef HAVE_FUNCTION_MACRO
447 #ifdef HAVE_func_MACRO
448 #define __FUNCTION__ __func__
450 #define __FUNCTION__ ("")
454 #ifdef HAVE_SYS_PARAM_H
455 #include <sys/param.h>
459 #define MIN(a,b) ((a)<(b)?(a):(b))
463 #define MAX(a,b) ((a)>(b)?(a):(b))
467 #define __STRING(x) #x
470 #ifndef _STRINGSTRING
471 #define __STRINGSTRING(x) __STRING(x)
475 #define __LINESTR__ __STRINGSTRING(__LINE__)
479 #define __location__ __FILE__ ":" __LINESTR__
485 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
488 * zero a structure given a pointer to the structure
490 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
493 * zero a structure given a pointer to the structure - no zero check
495 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
497 /* zero an array - note that sizeof(array) must work - ie. it must not be a
499 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
502 * work out how many elements there are in a static array
504 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
507 * pointer difference macro
509 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
515 #endif /* _LIBREPLACE_REPLACE_H */