mirror of https://github.com/moparisthebest/wget
215 lines
6.6 KiB
C
215 lines
6.6 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 ("very long") type useful for storing large
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non-negative quantities that exceed sizes of normal download, such
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as the *total* number of bytes downloaded. To fit today's needs,
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this needs to be an integral type at least 64 bits wide. On the
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machines where `long' is 64-bit, we use long. Otherwise, we check
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whether `long long' is available and if yes, use that. If long
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long is unavailable, we give up and just use `long'.
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This check could be smarter and moved to configure, which could
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check for a bunch of non-standard types such as uint64_t. But I
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don't see the need for it -- the current test will work on all
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modern architectures, and if it fails, nothing bad happens, we just
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end up with long.
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Note: you cannot use VERY_LONG_TYPE along with printf(). When you
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need to print it, use very_long_to_string(). */
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#if (SIZEOF_LONG >= 8) || !defined(HAVE_LONG_LONG)
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/* either long is "big enough", or long long is unavailable which
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leaves long as the only choice. */
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# define VERY_LONG_TYPE unsigned long
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#else /* use long long */
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/* long is smaller than 8 bytes, but long long is available. */
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# define VERY_LONG_TYPE unsigned long long
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#endif /* use long long */
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/* Defined in cmpt.c: */
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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_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 ();
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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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(compiling errors) with pointer arithmetic and similar.
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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 __cplusplus
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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 __cplusplus */
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#endif /* sun */
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#endif /* 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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#endif /* SYSDEP_H */
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