/* Dirty system-dependent hacks. Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc. This file is part of GNU Wget. GNU Wget is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. GNU Wget is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Wget; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. In addition, as a special exception, the Free Software Foundation gives permission to link the code of its release of Wget with the OpenSSL project's "OpenSSL" library (or with modified versions of it that use the same license as the "OpenSSL" library), and distribute the linked executables. You must obey the GNU General Public License in all respects for all of the code used other than "OpenSSL". If you modify this file, you may extend this exception to your version of the file, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ /* This file is included by wget.h. Random .c files need not include it. */ #ifndef SYSDEP_H #define SYSDEP_H /* We need these to be playing with various stuff. */ #ifdef TIME_WITH_SYS_TIME # include # include #else /* not TIME_WITH_SYS_TIME_H */ #ifdef HAVE_SYS_TIME_H # include #else /* not HAVE_SYS_TIME_H */ # include #endif /* HAVE_SYS_TIME_H */ #endif /* TIME_WITH_SYS_TIME_H */ #include #include #ifdef WINDOWS /* Windows doesn't have some functions. Include mswindows.h so we get their declarations, as well as some additional declarations and macros. This must come first, so it can set things up. */ #include #endif /* WINDOWS */ /* Watcom-specific stuff. In practice this is probably specific to Windows, although Watcom exists under other OS's too. For that reason, we keep this here. */ #ifdef __WATCOMC__ /* Watcom has its own alloca() defined in malloc.h malloc.h needs to be included in the sources to prevent 'undefined external' errors at the link phase. */ # include /* io.h defines unlink() and chmod(). We put this here because it's way too obscure to require all the .c files to observe. */ # include #endif /* __WATCOMC__ */ /* Needed for compilation under OS/2: */ #ifdef __EMX__ #ifndef S_ISLNK # define S_ISLNK(m) 0 #endif #ifndef lstat # define lstat stat #endif #endif /* __EMX__ */ /* Reportedly, stat() macros are broken on some old systems. Those systems will have to fend for themselves, as I will not introduce new code to handle it. However, I will add code for *missing* macros, and the following are missing from many systems. */ #ifndef S_ISLNK # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) #endif #ifndef S_ISDIR # define S_ISDIR(m) (((m) & (_S_IFMT)) == (_S_IFDIR)) #endif #ifndef S_ISREG # define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG) #endif /* Bletch! SPARC compiler doesn't define sparc (needed by arpa/nameser.h) when in -Xc mode. Luckily, it always defines __sparc. */ #ifdef __sparc #ifndef sparc #define sparc #endif #endif #ifdef __BEOS__ # undef READ # undef WRITE # define READ(fd, buf, cnt) recv((fd), (buf), (cnt), 0) # define WRITE(fd, buf, cnt) send((fd), (buf), (cnt), 0) #endif /* mswindows.h defines these. */ #ifndef READ # define READ(fd, buf, cnt) read ((fd), (buf), (cnt)) #endif #ifndef WRITE # define WRITE(fd, buf, cnt) write ((fd), (buf), (cnt)) #endif #ifndef REALCLOSE # define REALCLOSE(x) close (x) #endif #define CLOSE(x) \ do { \ REALCLOSE (x); \ DEBUGP (("Closing fd %d\n", x)); \ } while (0) /* Define a large ("very long") type useful for storing large non-negative quantities that exceed sizes of normal download, such as the *total* number of bytes downloaded. To fit today's needs, this needs to be an integral type at least 64 bits wide. On the machines where `long' is 64-bit, we use long. Otherwise, we check whether `long long' is available and if yes, use that. If long long is unavailable, we give up and just use `long'. This check could be smarter and moved to configure, which could check for a bunch of non-standard types such as uint64_t. But I don't see the need for it -- the current test will work on all modern architectures, and if it fails, nothing bad happens, we just end up with long. Note: you cannot use VERY_LONG_TYPE along with printf(). When you need to print it, use very_long_to_string(). */ #if (SIZEOF_LONG >= 8) || !defined(HAVE_LONG_LONG) /* either long is "big enough", or long long is unavailable which leaves long as the only choice. */ # define VERY_LONG_TYPE unsigned long #else /* use long long */ /* long is smaller than 8 bytes, but long long is available. */ # define VERY_LONG_TYPE unsigned long long #endif /* use long long */ /* These are defined in cmpt.c if missing, therefore it's generally safe to declare their parameters. */ #ifndef HAVE_STRERROR char *strerror (); #endif #ifndef HAVE_STRCASECMP int strcasecmp (); #endif #ifndef HAVE_STRNCASECMP int strncasecmp (); #endif #ifndef HAVE_STRSTR char *strstr (); #endif #ifndef HAVE_STRPTIME char *strptime (); #endif #ifndef HAVE_VSNPRINTF int vsnprintf (); #endif #ifndef HAVE_USLEEP int usleep PARAMS ((unsigned long)); #endif #ifndef HAVE_MEMMOVE void *memmove (); #endif /* SunOS brain damage -- for some reason, SunOS header files fail to declare the functions below, which causes all kinds of problems (compiling errors) with pointer arithmetic and similar. This used to be only within `#ifdef STDC_HEADERS', but it got tripped on other systems (AIX), thus causing havoc. Fortunately, SunOS appears to be the only system braindamaged that badly, so I added an extra `#ifdef sun' guard. */ #ifndef STDC_HEADERS #ifdef sun #ifndef __cplusplus char *strstr (); char *strchr (); char *strrchr (); char *strtok (); char *strdup (); void *memcpy (); #endif /* not __cplusplus */ #endif /* sun */ #endif /* STDC_HEADERS */ /* Some systems (Linux libc5, "NCR MP-RAS 3.0", and others) don't provide MAP_FAILED, a symbolic constant for the value returned by mmap() when it doesn't work. Usually, this constant should be -1. This only makes sense for files that use mmap() and include sys/mman.h *before* sysdep.h, but doesn't hurt others. */ #ifndef MAP_FAILED # define MAP_FAILED ((void *) -1) #endif #endif /* SYSDEP_H */