/* 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 HAVE_INTTYPES_H # include #endif #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 /* Define a large integral type useful for storing large sizes that exceed sizes of one download, such as when printing the sum of all downloads. Note that this has nothing to do with large file support, which determines the wgint type. This should be as large as possible even on systems where when wgint is 32-bit; also, unlike wgint, this can be a floating point type. We use a 64-bit integral type where available, `double' otherwise. It's hard to print LARGE_INT's portably, but fortunately it's rarely needed. */ #if SIZEOF_LONG >= 8 /* Long is large enough: use it. */ typedef long LARGE_INT; # define LARGE_INT_FMT "%ld" #else # if SIZEOF_LONG_LONG >= 8 /* Long long is large enough: use it. */ typedef long long LARGE_INT; # define LARGE_INT_FMT "%lld" # else # if _MSC_VER /* Use __int64 under Windows. */ typedef __int64 LARGE_INT; # define LARGE_INT_FMT "%I64" # else /* Large integer type unavailable; use `double' instead. */ typedef double LARGE_INT; # define LARGE_INT_FMT "%.0f" # endif # endif #endif /* Under Windows we #define struct_stat to struct _stati64. */ #ifndef struct_stat # define struct_stat struct stat #endif #ifdef HAVE_LIMITS_H # include #endif #ifndef CHAR_BIT # define CHAR_BIT 8 #endif #ifndef LONG_MAX # define LONG_MAX ((long) ~((unsigned long)1 << (CHAR_BIT * sizeof (long) - 1))) #endif #ifndef LLONG_MAX # define LLONG_MAX ((long long) ~((unsigned long long)1 << (CHAR_BIT * sizeof (long long) - 1))) #endif /* 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_SNPRINTF int snprintf (); #endif #ifndef HAVE_VSNPRINTF int vsnprintf (); #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, most notably compilation errors when using pointer arithmetic on their return values. 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 __SVR4 /* exclude Solaris */ char *strstr (); char *strchr (); char *strrchr (); char *strtok (); char *strdup (); void *memcpy (); #endif /* not __SVR4 */ #endif /* sun */ #endif /* not 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 /* Enable system fnmatch only on systems where fnmatch.h is usable and which are known to have a non-broken fnmatch implementation. Currently those include glibc-based systems and Solaris. One could add more, but fnmatch is not that large, so it might be better to play it safe. */ #ifdef HAVE_WORKING_FNMATCH_H # if defined __GLIBC__ && __GLIBC__ >= 2 # define SYSTEM_FNMATCH # endif # ifdef solaris # define SYSTEM_FNMATCH # endif #endif /* HAVE_WORKING_FNMATCH_H */ #ifdef SYSTEM_FNMATCH # include #else /* not SYSTEM_FNMATCH */ /* Define fnmatch flags. Undef them first to avoid warnings in case an evil library include chose to include system fnmatch.h. */ # undef FNM_PATHNAME # undef FNM_NOESCAPE # undef FNM_PERIOD # undef FNM_NOMATCH # define FNM_PATHNAME (1 << 0) /* No wildcard can ever match `/'. */ # define FNM_NOESCAPE (1 << 1) /* Backslashes don't quote special chars. */ # define FNM_PERIOD (1 << 2) /* Leading `.' is matched only explicitly. */ # define FNM_NOMATCH 1 /* Declare the function minimally. */ int fnmatch (); #endif /* Provide sig_atomic_t if the system doesn't. */ #ifndef HAVE_SIG_ATOMIC_T typedef int sig_atomic_t; #endif /* Provide uint32_t on the platforms that don't define it. Although most code should be agnostic about integer sizes, some code really does need a 32-bit integral type. Such code should use uint32_t. (The exception is gnu-md5.[ch], which uses its own detection for portability across platforms.) */ #ifndef HAVE_UINT32_T # if SIZEOF_INT == 4 typedef unsigned int uint32_t; # else # if SIZEOF_LONG == 4 typedef unsigned long uint32_t; # else # if SIZEOF_SHORT == 4 typedef unsigned short uint32_t; # else #error "Cannot determine a 32-bit unsigned integer type" # endif # endif # endif #endif #endif /* SYSDEP_H */