1 /* Dirty system-dependent hacks.
2 Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
4 This file is part of GNU Wget.
6 GNU Wget is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or (at
9 your option) any later version.
11 GNU Wget is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Wget; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 In addition, as a special exception, the Free Software Foundation
21 gives permission to link the code of its release of Wget with the
22 OpenSSL project's "OpenSSL" library (or with modified versions of it
23 that use the same license as the "OpenSSL" library), and distribute
24 the linked executables. You must obey the GNU General Public License
25 in all respects for all of the code used other than "OpenSSL". If you
26 modify this file, you may extend this exception to your version of the
27 file, but you are not obligated to do so. If you do not wish to do
28 so, delete this exception statement from your version. */
30 /* This file is included by wget.h. Random .c files need not include
36 /* We need these to be playing with various stuff. */
37 #ifdef TIME_WITH_SYS_TIME
38 # include <sys/time.h>
40 #else /* not TIME_WITH_SYS_TIME_H */
41 #ifdef HAVE_SYS_TIME_H
42 # include <sys/time.h>
43 #else /* not HAVE_SYS_TIME_H */
45 #endif /* HAVE_SYS_TIME_H */
46 #endif /* TIME_WITH_SYS_TIME_H */
48 #include <sys/types.h>
51 #ifdef HAVE_INTTYPES_H
52 # include <inttypes.h>
56 /* Windows doesn't have some functions. Include mswindows.h so we get
57 their declarations, as well as some additional declarations and
58 macros. This must come first, so it can set things up. */
59 #include <mswindows.h>
62 /* Watcom-specific stuff. In practice this is probably specific to
63 Windows, although Watcom exists under other OS's too. For that
64 reason, we keep this here. */
67 /* Watcom has its own alloca() defined in malloc.h malloc.h needs to
68 be included in the sources to prevent 'undefined external' errors
71 /* io.h defines unlink() and chmod(). We put this here because it's
72 way too obscure to require all the .c files to observe. */
74 #endif /* __WATCOMC__ */
76 /* Needed for compilation under OS/2: */
86 /* Reportedly, stat() macros are broken on some old systems. Those
87 systems will have to fend for themselves, as I will not introduce
88 new code to handle it.
90 However, I will add code for *missing* macros, and the following
91 are missing from many systems. */
93 # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
96 # define S_ISDIR(m) (((m) & (_S_IFMT)) == (_S_IFDIR))
99 # define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
102 /* Bletch! SPARC compiler doesn't define sparc (needed by
103 arpa/nameser.h) when in -Xc mode. Luckily, it always defines
111 /* Define a large integral type useful for storing large sizes that
112 exceed sizes of one download, such as when printing the sum of all
113 downloads. Note that this has nothing to do with large file
114 support, which determines the wgint type. This should be as large
115 as possible even on systems where when wgint is 32-bit; also,
116 unlike wgint, this can be a floating point type.
118 We use a 64-bit integral type where available, `double' otherwise.
119 It's hard to print LARGE_INT's portably, but fortunately it's
123 /* Long is large enough: use it. */
124 typedef long LARGE_INT;
125 # define LARGE_INT_FMT "%ld"
127 # if SIZEOF_LONG_LONG >= 8
128 /* Long long is large enough: use it. */
129 typedef long long LARGE_INT;
130 # define LARGE_INT_FMT "%lld"
133 /* Use __int64 under Windows. */
134 typedef __int64 LARGE_INT;
135 # define LARGE_INT_FMT "%I64"
137 /* Large integer type unavailable; use `double' instead. */
138 typedef double LARGE_INT;
139 # define LARGE_INT_FMT "%.0f"
144 /* Under Windows we #define struct_stat to struct _stati64. */
146 # define struct_stat struct stat
158 # define LONG_MAX ((long) ~((unsigned long)1 << (CHAR_BIT * sizeof (long) - 1)))
161 # define LLONG_MAX ((long long) ~((unsigned long long)1 << (CHAR_BIT * sizeof (long long) - 1)))
164 /* These are defined in cmpt.c if missing, therefore it's generally
165 safe to declare their parameters. */
166 #ifndef HAVE_STRERROR
169 #ifndef HAVE_STRCASECMP
172 #ifndef HAVE_STRNCASECMP
178 #ifndef HAVE_STRPTIME
181 #ifndef HAVE_SNPRINTF
184 #ifndef HAVE_VSNPRINTF
191 /* SunOS brain damage -- for some reason, SunOS header files fail to
192 declare the functions below, which causes all kinds of problems,
193 most notably compilation errors when using pointer arithmetic on
196 This used to be only within `#ifdef STDC_HEADERS', but it got
197 tripped on other systems (AIX), thus causing havoc. Fortunately,
198 SunOS appears to be the only system braindamaged that badly, so I
199 added an extra `#ifdef sun' guard. */
202 #ifndef __SVR4 /* exclude Solaris */
209 #endif /* not __SVR4 */
211 #endif /* not STDC_HEADERS */
213 /* Some systems (Linux libc5, "NCR MP-RAS 3.0", and others) don't
214 provide MAP_FAILED, a symbolic constant for the value returned by
215 mmap() when it doesn't work. Usually, this constant should be -1.
216 This only makes sense for files that use mmap() and include
217 sys/mman.h *before* sysdep.h, but doesn't hurt others. */
220 # define MAP_FAILED ((void *) -1)
223 /* Enable system fnmatch only on systems where fnmatch.h is usable and
224 which are known to have a non-broken fnmatch implementation.
225 Currently those include glibc-based systems and Solaris. One could
226 add more, but fnmatch is not that large, so it might be better to
228 #ifdef HAVE_WORKING_FNMATCH_H
229 # if defined __GLIBC__ && __GLIBC__ >= 2
230 # define SYSTEM_FNMATCH
233 # define SYSTEM_FNMATCH
235 #endif /* HAVE_WORKING_FNMATCH_H */
237 #ifdef SYSTEM_FNMATCH
238 # include <fnmatch.h>
239 #else /* not SYSTEM_FNMATCH */
240 /* Define fnmatch flags. Undef them first to avoid warnings in case
241 an evil library include chose to include system fnmatch.h. */
247 # define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */
248 # define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */
249 # define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */
250 # define FNM_NOMATCH 1
252 /* Declare the function minimally. */
256 /* Provide sig_atomic_t if the system doesn't. */
257 #ifndef HAVE_SIG_ATOMIC_T
258 typedef int sig_atomic_t;
261 /* Provide uint32_t on the platforms that don't define it. Although
262 most code should be agnostic about integer sizes, some code really
263 does need a 32-bit integral type. Such code should use uint32_t.
264 (The exception is gnu-md5.[ch], which uses its own detection for
265 portability across platforms.) */
267 #ifndef HAVE_UINT32_T
269 typedef unsigned int uint32_t;
271 # if SIZEOF_LONG == 4
272 typedef unsigned long uint32_t;
274 # if SIZEOF_SHORT == 4
275 typedef unsigned short uint32_t;
277 #error "Cannot determine a 32-bit unsigned integer type"
283 #endif /* SYSDEP_H */