mirror of
https://github.com/moparisthebest/wget
synced 2024-07-03 16:38:41 -04:00
286 lines
8.0 KiB
C
286 lines
8.0 KiB
C
/* Dirty system-dependent hacks.
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Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
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This file is part of GNU Wget.
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GNU Wget is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Wget is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Wget; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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In addition, as a special exception, the Free Software Foundation
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gives permission to link the code of its release of Wget with the
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OpenSSL project's "OpenSSL" library (or with modified versions of it
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that use the same license as the "OpenSSL" library), and distribute
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the linked executables. You must obey the GNU General Public License
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in all respects for all of the code used other than "OpenSSL". If you
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modify this file, you may extend this exception to your version of the
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file, but you are not obligated to do so. If you do not wish to do
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so, delete this exception statement from your version. */
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/* This file is included by wget.h. Random .c files need not include
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it. */
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#ifndef SYSDEP_H
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#define SYSDEP_H
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/* We need these to be playing with various stuff. */
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else /* not TIME_WITH_SYS_TIME_H */
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#else /* not HAVE_SYS_TIME_H */
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# include <time.h>
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#endif /* HAVE_SYS_TIME_H */
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#endif /* TIME_WITH_SYS_TIME_H */
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef WINDOWS
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/* Windows doesn't have some functions. Include mswindows.h so we get
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their declarations, as well as some additional declarations and
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macros. This must come first, so it can set things up. */
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#include <mswindows.h>
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#endif /* WINDOWS */
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/* Watcom-specific stuff. In practice this is probably specific to
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Windows, although Watcom exists under other OS's too. For that
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reason, we keep this here. */
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#ifdef __WATCOMC__
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/* Watcom has its own alloca() defined in malloc.h malloc.h needs to
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be included in the sources to prevent 'undefined external' errors
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at the link phase. */
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# include <malloc.h>
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/* io.h defines unlink() and chmod(). We put this here because it's
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way too obscure to require all the .c files to observe. */
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# include <io.h>
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#endif /* __WATCOMC__ */
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/* Needed for compilation under OS/2: */
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#ifdef __EMX__
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#ifndef S_ISLNK
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# define S_ISLNK(m) 0
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#endif
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#ifndef lstat
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# define lstat stat
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#endif
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#endif /* __EMX__ */
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/* Reportedly, stat() macros are broken on some old systems. Those
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systems will have to fend for themselves, as I will not introduce
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new code to handle it.
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However, I will add code for *missing* macros, and the following
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are missing from many systems. */
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#ifndef S_ISLNK
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# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
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#endif
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#ifndef S_ISDIR
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# define S_ISDIR(m) (((m) & (_S_IFMT)) == (_S_IFDIR))
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#endif
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#ifndef S_ISREG
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# define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
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#endif
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/* Bletch! SPARC compiler doesn't define sparc (needed by
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arpa/nameser.h) when in -Xc mode. Luckily, it always defines
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__sparc. */
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#ifdef __sparc
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#ifndef sparc
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#define sparc
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#endif
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#endif
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#ifdef __BEOS__
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# undef READ
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# undef WRITE
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# define READ(fd, buf, cnt) recv((fd), (buf), (cnt), 0)
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# define WRITE(fd, buf, cnt) send((fd), (buf), (cnt), 0)
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#endif
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/* mswindows.h defines these. */
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#ifndef READ
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# define READ(fd, buf, cnt) read ((fd), (buf), (cnt))
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#endif
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#ifndef WRITE
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# define WRITE(fd, buf, cnt) write ((fd), (buf), (cnt))
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#endif
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#ifndef REALCLOSE
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# define REALCLOSE(x) close (x)
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#endif
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#define CLOSE(x) \
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do { \
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REALCLOSE (x); \
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DEBUGP (("Closing fd %d\n", x)); \
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} while (0)
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/* Define a large integral type useful for storing large sizes that
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exceed sizes of one download, such as when printing the sum of all
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downloads. Note that this has nothing to do with large file
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support, yet.
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We use a 64-bit integral type where available, `double' otherwise.
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It's hard to print LARGE_INT's portably, but fortunately it's
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rarely needed. */
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#if SIZEOF_LONG >= 8
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/* Long is large enough: use it. */
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typedef long LARGE_INT;
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# define LARGE_INT_FMT "%ld"
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#else
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# if SIZEOF_LONG_LONG == 8
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/* Long long is large enough: use it. */
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typedef long long LARGE_INT;
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# define LARGE_INT_FMT "%lld"
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# else
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/* Use `double'. */
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typedef double LARGE_INT;
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# define LARGE_INT_FMT "%.0f"
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# endif
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#endif
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/* These are defined in cmpt.c if missing, therefore it's generally
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safe to declare their parameters. */
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#ifndef HAVE_STRERROR
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char *strerror ();
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#endif
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#ifndef HAVE_STRCASECMP
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int strcasecmp ();
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#endif
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#ifndef HAVE_STRNCASECMP
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int strncasecmp ();
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#endif
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#ifndef HAVE_STRSTR
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char *strstr ();
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#endif
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#ifndef HAVE_STRPTIME
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char *strptime ();
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#endif
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#ifndef HAVE_SNPRINTF
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int snprintf ();
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#endif
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#ifndef HAVE_VSNPRINTF
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int vsnprintf ();
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#endif
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#ifndef HAVE_USLEEP
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int usleep PARAMS ((unsigned long));
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#endif
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#ifndef HAVE_MEMMOVE
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void *memmove ();
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#endif
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/* SunOS brain damage -- for some reason, SunOS header files fail to
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declare the functions below, which causes all kinds of problems,
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most notably compilation errors when using pointer arithmetic on
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their return values.
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This used to be only within `#ifdef STDC_HEADERS', but it got
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tripped on other systems (AIX), thus causing havoc. Fortunately,
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SunOS appears to be the only system braindamaged that badly, so I
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added an extra `#ifdef sun' guard. */
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#ifndef STDC_HEADERS
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#ifdef sun
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#ifndef __SVR4 /* exclude Solaris */
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char *strstr ();
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char *strchr ();
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char *strrchr ();
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char *strtok ();
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char *strdup ();
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void *memcpy ();
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#endif /* not __SVR4 */
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#endif /* sun */
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#endif /* not STDC_HEADERS */
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/* Some systems (Linux libc5, "NCR MP-RAS 3.0", and others) don't
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provide MAP_FAILED, a symbolic constant for the value returned by
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mmap() when it doesn't work. Usually, this constant should be -1.
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This only makes sense for files that use mmap() and include
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sys/mman.h *before* sysdep.h, but doesn't hurt others. */
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#ifndef MAP_FAILED
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# define MAP_FAILED ((void *) -1)
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#endif
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/* Enable system fnmatch only on systems where we know it works:
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currently glibc-based systems and Solaris. One could add more, but
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fnmatch is not that large, so it might be better to play it
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safe. */
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#if defined __GLIBC__ && __GLIBC__ >= 2
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# define SYSTEM_FNMATCH
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#endif
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#ifdef solaris
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# define SYSTEM_FNMATCH
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#endif
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#ifdef SYSTEM_FNMATCH
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# include <fnmatch.h>
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#else /* not SYSTEM_FNMATCH */
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/* Define fnmatch flags. Undef them first to avoid warnings in case
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an evil library include chose to include system fnmatch.h. */
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# undef FNM_PATHNAME
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# undef FNM_NOESCAPE
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# undef FNM_PERIOD
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# undef FNM_NOMATCH
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# define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */
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# define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */
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# define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */
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# define FNM_NOMATCH 1
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/* Declare the function minimally. */
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int fnmatch ();
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#endif
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/* Provide 32-bit types. Most code shouldn't care, but there is code
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that really needs a 32-bit integral type. If int32_t and u_int32_t
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are present, we use them, otherwise we pick one of int/short/long,
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and throw an error if none of them works. */
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#ifndef HAVE_INT32_T
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# if SIZEOF_INT == 4
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typedef int int32_t;
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# else
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# if SIZEOF_LONG == 4
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typedef long int32_t;
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# else
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# if SIZEOF_SHORT == 4
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typedef short int32_t;
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# else
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#error "Cannot determine a 32-bit type"
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# endif
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# endif
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# endif
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#endif
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#ifndef HAVE_U_INT32_T
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# if SIZEOF_INT == 4
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typedef unsigned int u_int32_t;
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# else
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# if SIZEOF_LONG == 4
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typedef unsigned long u_int32_t;
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# else
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# if SIZEOF_SHORT == 4
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typedef unsigned short u_int32_t;
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# else
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#error "Cannot determine a 32-bit type"
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# endif
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# endif
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# endif
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#endif
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#endif /* SYSDEP_H */
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