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
67 #ifdef HAVE_SYS_TYPES_H
68 #include <sys/types.h>
77 extern char *sys_errlist[];
78 #define strerror(i) sys_errlist[i]
81 #ifndef HAVE_ERRNO_DECL
86 #define strdup rep_strdup
87 char *rep_strdup(const char *s);
91 #define memmove rep_memmove
92 void *rep_memmove(void *dest,const void *src,int size);
96 #define mktime rep_mktime
97 /* prototype is in "system/time.h" */
101 #define timegm rep_timegm
102 /* prototype is in "system/time.h" */
106 #define utime rep_utime
107 /* prototype is in "system/time.h" */
111 #define utimes rep_utimes
112 /* prototype is in "system/time.h" */
116 #define strlcpy rep_strlcpy
117 size_t rep_strlcpy(char *d, const char *s, size_t bufsize);
121 #define strlcat rep_strlcat
122 size_t rep_strlcat(char *d, const char *s, size_t bufsize);
125 #if (defined(BROKEN_STRNDUP) || !defined(HAVE_STRNDUP))
127 #define strndup rep_strndup
128 char *rep_strndup(const char *s, size_t n);
131 #if (defined(BROKEN_STRNLEN) || !defined(HAVE_STRNLEN))
133 #define strnlen rep_strnlen
134 size_t rep_strnlen(const char *s, size_t n);
138 #define setenv rep_setenv
139 int rep_setenv(const char *name, const char *value, int overwrite);
141 #ifndef HAVE_SETENV_DECL
142 int setenv(const char *name, const char *value, int overwrite);
146 #ifndef HAVE_UNSETENV
147 #define unsetenv rep_unsetenv
148 int rep_unsetenv(const char *name);
152 #define seteuid rep_seteuid
153 int rep_seteuid(uid_t);
157 #define setegid rep_setegid
158 int rep_setegid(gid_t);
161 #ifndef HAVE_SETLINEBUF
162 #define setlinebuf rep_setlinebuf
163 void rep_setlinebuf(FILE *);
166 #ifndef HAVE_STRCASESTR
167 #define strcasestr rep_strcasestr
168 char *rep_strcasestr(const char *haystack, const char *needle);
171 #ifndef HAVE_STRTOK_R
172 #define strtok_r rep_strtok_r
173 char *rep_strtok_r(char *s, const char *delim, char **save_ptr);
177 #define strtoll rep_strtoll
178 long long int rep_strtoll(const char *str, char **endptr, int base);
181 #ifndef HAVE_STRTOULL
182 #define strtoull rep_strtoull
183 unsigned long long int rep_strtoull(const char *str, char **endptr, int base);
186 #ifndef HAVE_FTRUNCATE
187 #define ftruncate rep_ftruncate
188 int rep_ftruncate(int,off_t);
191 #ifndef HAVE_INITGROUPS
192 #define initgroups rep_initgroups
193 int rep_initgroups(char *name, gid_t id);
196 #if !defined(HAVE_BZERO) && defined(HAVE_MEMSET)
197 #define bzero(a,b) memset((a),'\0',(b))
201 #define dlerror rep_dlerror
202 char *rep_dlerror(void);
206 #define dlopen rep_dlopen
207 #ifdef DLOPEN_TAKES_UNSIGNED_FLAGS
208 void *rep_dlopen(const char *name, unsigned int flags);
210 void *rep_dlopen(const char *name, int flags);
215 #define dlsym rep_dlsym
216 void *rep_dlsym(void *handle, const char *symbol);
220 #define dlclose rep_dlclose
221 int rep_dlclose(void *handle);
224 #ifndef HAVE_SOCKETPAIR
225 #define socketpair rep_socketpair
226 /* prototype is in system/network.h */
229 #ifndef PRINTF_ATTRIBUTE
230 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
231 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
232 * the parameter containing the format, and a2 the index of the first
233 * argument. Note that some gcc 2.x versions don't handle this
235 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
237 #define PRINTF_ATTRIBUTE(a1, a2)
242 #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
243 #define _DEPRECATED_ __attribute__ ((deprecated))
249 #ifndef HAVE_VASPRINTF
250 #define vasprintf rep_vasprintf
251 int rep_vasprintf(char **ptr, const char *format, va_list ap) PRINTF_ATTRIBUTE(2,0);
254 #if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
255 #define snprintf rep_snprintf
256 int rep_snprintf(char *,size_t ,const char *, ...) PRINTF_ATTRIBUTE(3,4);
259 #if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
260 #define vsnprintf rep_vsnprintf
261 int rep_vsnprintf(char *,size_t ,const char *, va_list ap) PRINTF_ATTRIBUTE(3,0);
264 #ifndef HAVE_ASPRINTF
265 #define asprintf rep_asprintf
266 int rep_asprintf(char **,const char *, ...) PRINTF_ATTRIBUTE(2,3);
271 #define vsyslog rep_vsyslog
272 void rep_vsyslog (int facility_priority, const char *format, va_list arglist) PRINTF_ATTRIBUTE(2,0);
276 /* we used to use these fns, but now we have good replacements
277 for snprintf and vsnprintf */
278 #define slprintf snprintf
283 #ifdef HAVE___VA_COPY
284 #define va_copy(dest, src) __va_copy(dest, src)
286 #define va_copy(dest, src) (dest) = (src)
290 #ifndef HAVE_VOLATILE
294 #ifndef HAVE_COMPARISON_FN_T
295 typedef int (*comparison_fn_t)(const void *, const void *);
298 #ifdef REPLACE_STRPTIME
299 #define strptime rep_strptime
301 char *rep_strptime(const char *buf, const char *format, struct tm *tm);
304 /* Load header file for dynamic linking stuff */
316 #define RTLD_GLOBAL 0
319 #ifndef HAVE_SECURE_MKSTEMP
320 #define mkstemp(path) rep_mkstemp(path)
321 int rep_mkstemp(char *temp);
325 #define mkdtemp rep_mkdtemp
326 char *rep_mkdtemp(char *template);
330 #define pread rep_pread
331 ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset);
335 #define pwrite rep_pwrite
336 ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset);
339 #if !defined(HAVE_INET_NTOA) || defined(REPLACE_INET_NTOA)
340 #define inet_ntoa rep_inet_ntoa
341 /* prototype is in "system/network.h" */
344 #ifndef HAVE_INET_PTON
345 #define inet_pton rep_inet_pton
346 /* prototype is in "system/network.h" */
349 #ifndef HAVE_INET_NTOP
350 #define inet_ntop rep_inet_ntop
351 /* prototype is in "system/network.h" */
354 #ifndef HAVE_INET_ATON
355 #define inet_aton rep_inet_aton
356 /* prototype is in "system/network.h" */
360 #define connect rep_connect
361 /* prototype is in "system/network.h" */
364 #ifndef HAVE_GETHOSTBYNAME
365 #define gethostbyname rep_gethostbyname
366 /* prototype is in "system/network.h" */
369 #ifndef HAVE_GETIFADDRS
370 #define getifaddrs rep_getifaddrs
371 /* prototype is in "system/network.h" */
374 #ifndef HAVE_FREEIFADDRS
375 #define freeifaddrs rep_freeifaddrs
376 /* prototype is in "system/network.h" */
383 #ifdef HAVE_SYS_PARAM_H
384 #include <sys/param.h>
387 /* The extra casts work around common compiler bugs. */
388 #define _TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
389 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
390 It is necessary at least when t == time_t. */
391 #define _TYPE_MINIMUM(t) ((t) (_TYPE_SIGNED (t) \
392 ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
393 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
395 #ifndef HOST_NAME_MAX
396 #define HOST_NAME_MAX 255
400 * Some older systems seem not to have MAXHOSTNAMELEN
403 #ifndef MAXHOSTNAMELEN
404 #define MAXHOSTNAMELEN HOST_NAME_MAX
408 #define UINT16_MAX 65535
412 #define UINT32_MAX (4294967295U)
416 #define UINT64_MAX ((uint64_t)-1)
424 #define INT32_MAX _TYPE_MAXIMUM(int32_t)
427 #ifdef HAVE_STDBOOL_H
431 #if !defined(HAVE_BOOL)
440 * to prevent <rpcsvc/yp_prot.h> from doing a redefine of 'bool'
442 * IRIX, HPUX, MacOS 10 and Solaris need BOOL_DEFINED
443 * Tru64 needs _BOOL_EXISTS
444 * AIX needs _BOOL,_TRUE,_FALSE
456 #ifndef __bool_true_false_are_defined
457 #define __bool_true_false_are_defined
474 #ifndef HAVE_FUNCTION_MACRO
475 #ifdef HAVE_func_MACRO
476 #define __FUNCTION__ __func__
478 #define __FUNCTION__ ("")
484 #define MIN(a,b) ((a)<(b)?(a):(b))
488 #define MAX(a,b) ((a)>(b)?(a):(b))
491 #if !defined(HAVE_VOLATILE)
496 this is a warning hack. The idea is to use this everywhere that we
497 get the "discarding const" warning from gcc. That doesn't actually
498 fix the problem of course, but it means that when we do get to
499 cleaning them up we can do it by searching the code for
502 It also means that other error types aren't as swamped by the noise
503 of hundreds of const warnings, so we are more likely to notice when
506 Please only add more uses of this macro when you find it
507 _really_ hard to fix const warnings. Our aim is to eventually use
508 this function in only a very few places.
510 Also, please call this via the discard_const_p() macro interface, as that
511 makes the return type safe.
513 #define discard_const(ptr) ((void *)((uintptr_t)(ptr)))
515 /** Type-safe version of discard_const */
516 #define discard_const_p(type, ptr) ((type *)discard_const(ptr))
519 #define __STRING(x) #x
522 #ifndef __STRINGSTRING
523 #define __STRINGSTRING(x) __STRING(x)
527 #define __LINESTR__ __STRINGSTRING(__LINE__)
531 #define __location__ __FILE__ ":" __LINESTR__
537 #define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
540 * zero a structure given a pointer to the structure
542 #define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
545 * zero a structure given a pointer to the structure - no zero check
547 #define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
549 /* zero an array - note that sizeof(array) must work - ie. it must not be a
551 #define ZERO_ARRAY(x) memset((char *)(x), 0, sizeof(x))
554 * work out how many elements there are in a static array
556 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
559 * pointer difference macro
561 #define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
568 #define QSORT_CAST (__compar_fn_t)
572 #define QSORT_CAST (int (*)(const void *, const void *))
576 #define PATH_MAX 1024
579 #ifndef MAX_DNS_NAME_LENGTH
580 #define MAX_DNS_NAME_LENGTH 256 /* Actually 255 but +1 for terminating null. */
583 #endif /* _LIBREPLACE_REPLACE_H */