X-Git-Url: http://sjero.net/git/?p=wget;a=blobdiff_plain;f=src%2Fsysdep.h;h=bd6b83bf3e011016f4758e3e70d880943ee4f946;hp=8bfdbfa59f773d4309627c941205ef37c1292dfb;hb=320cfdcb658e8d6556ae9dfd902c2db1db866a6b;hpb=29cdc8da201865264b8344b68517e1cc405628fc diff --git a/src/sysdep.h b/src/sysdep.h index 8bfdbfa5..bd6b83bf 100644 --- a/src/sysdep.h +++ b/src/sysdep.h @@ -1,21 +1,33 @@ /* Dirty system-dependent hacks. - Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, + 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, + Inc. -This file is part of Wget. +This file is part of GNU Wget. -This program is free software; you can redistribute it and/or modify +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. +the Free Software Foundation; either version 3 of the License, or (at +your option) any later version. -This program is distributed in the hope that it will be useful, +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 this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +along with Wget. If not, see . + +Additional permission under GNU GPL version 3 section 7 + +If you modify this program, or any covered work, by linking or +combining it with the OpenSSL project's OpenSSL library (or a +modified version of that library), containing parts covered by the +terms of the OpenSSL or SSLeay licenses, the Free Software Foundation +grants you additional permission to convey the resulting work. +Corresponding Source for a non-source form of such a combination +shall include the source code for the parts of OpenSSL used as well +as that of the covered work. */ /* This file is included by wget.h. Random .c files need not include it. */ @@ -23,44 +35,108 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #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 */ +/* Testing for __sun is not enough because it's also defined on SunOS. */ +#ifdef __sun +# ifdef __SVR4 +# define solaris +# endif +#endif + +#if defined(__INTERIX) && !defined(_ALL_SOURCE) +# define _ALL_SOURCE +#endif + +/* The "namespace tweaks" below attempt to set a friendly "compilation + environment" under popular operating systems. Default compilation + environment often means that some functions that are "extensions" + are not declared -- `strptime' is one example. + + But non-default environments can expose bugs in the system header + files, crippling compilation in _very_ non-obvious ways. Because + of that, we define them only on well-tested architectures where we + know they will work. */ + +#undef NAMESPACE_TWEAKS + +#ifdef solaris +# define NAMESPACE_TWEAKS +#endif + +#if defined(__linux__) || defined(__GLIBC__) +# define NAMESPACE_TWEAKS +#endif + +#ifdef NAMESPACE_TWEAKS +/* Request the "Unix 98 compilation environment". */ +#define _XOPEN_SOURCE 500 + +#endif /* NAMESPACE_TWEAKS */ + + +/* Alloca declaration, based on recommendation in the Autoconf manual. + These have to be after the above namespace tweaks, but before any + non-preprocessor code. */ + +#if HAVE_ALLOCA_H +# include +#elif defined WINDOWS +# include +# ifndef alloca +# define alloca _alloca +# endif +#elif defined __GNUC__ +# define alloca __builtin_alloca +#elif defined _AIX +# define alloca __alloca +#else +# include +# ifdef __cplusplus +extern "C" +# endif +void *alloca (size_t); +#endif + +/* Must include these, so we can test for the missing stat macros and + define them as necessary. */ #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 */ - -/* Allegedly needed for compilation under OS/2: */ -#ifdef EMXOS2 -#ifndef S_ISLNK -# define S_ISLNK(m) 0 +#ifdef HAVE_INTTYPES_H + /* Compaq C V6.5-303 (dtk) on HP Tru64 UNIX V5.1B (Rev. 2650) needs: */ +# include +# include #endif -#ifndef lstat -# define lstat stat + +#ifdef WINDOWS +/* Windows doesn't have some functions normally found on Unix-like + systems, such as strcasecmp, strptime, etc. Include mswindows.h so + we get the declarations for their replacements in mswindows.c, as + well as to pick up Windows-specific includes and constants. To be + able to test for such features, the file must be included as early + as possible. */ +# include "mswindows.h" #endif -#endif /* EMXOS2 */ + +/* Provided by gnulib on systems that don't have it: */ +# include + +/* Needed for compilation under OS/2 and MSDOS */ +#if defined(__EMX__) || defined(MSDOS) +# ifndef S_ISLNK +# define S_ISLNK(m) 0 +# endif +# ifndef lstat +# define lstat stat +# endif +#endif /* __EMX__ || MSDOS */ /* 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. */ + are reportedly missing from many systems. */ #ifndef S_ISLNK # define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) #endif @@ -71,102 +147,124 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ # 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 - -/* 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 "very long" type useful for storing large non-negative - integers, e.g. the total number of bytes downloaded. 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. Otherwise, we give up and - just use `long'. */ -#if (SIZEOF_LONG >= 8) || !defined(HAVE_LONG_LONG) -# define VERY_LONG_TYPE unsigned long -# define VERY_LONG_FORMAT "%lu" -#else /* long is smaller than 8 bytes, but long long is available. */ -# define VERY_LONG_TYPE unsigned long long -# define VERY_LONG_FORMAT "%llu" -#endif /* use long long */ - -/* OK, now define a decent interface to ctype macros. The regular - ones misfire when you feed them chars > 127, as they understand - them as "negative", which results in out-of-bound access at - table-lookup, yielding random results. This is, of course, totally - bogus. One way to "solve" this is to use `unsigned char' - everywhere, but it is nearly impossible to do that cleanly, because - all of the library functions and system calls accept `char'. - - Thus we define our wrapper macros which simply cast the argument to - unsigned char before passing it to the macro. These - versions are used consistently across the code. */ -#define ISASCII(x) isascii ((unsigned char)(x)) -#define ISALPHA(x) isalpha ((unsigned char)(x)) -#define ISALNUM(x) isalnum ((unsigned char)(x)) -#define ISSPACE(x) isspace ((unsigned char)(x)) -#define ISDIGIT(x) isdigit ((unsigned char)(x)) -#define ISXDIGIT(x) isxdigit ((unsigned char)(x)) -#define TOUPPER(x) toupper ((unsigned char)(x)) -#define TOLOWER(x) tolower ((unsigned char)(x)) - -/* Defined in cmpt.c: */ -#ifndef HAVE_STRERROR -char *strerror (); +/* These are needed so we can #define struct_stat to struct _stati64 + under Windows. */ +#ifndef struct_stat +# define struct_stat struct stat +#endif +#ifndef struct_fstat +# define struct_fstat struct stat #endif + +/* For CHAR_BIT, LONG_MAX, etc. */ +#include + +#ifndef CHAR_BIT +# define CHAR_BIT 8 +#endif + +/* From gnulib, simplified to assume a signed type. */ +#define TYPE_MAXIMUM(t) ((t) (~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))) + +/* These are defined in cmpt.c if missing, so we must declare + them. */ #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_TIMEGM +# include +time_t timegm (struct tm *); +#endif +#ifndef HAVE_MEMRCHR +void *memrchr (const void *, int, size_t); +#endif + +/* These are defined in snprintf.c. It would be nice to have an + snprintf.h, though. */ +#ifndef HAVE_SNPRINTF +int snprintf (char *str, size_t count, const char *fmt, ...); +#endif +#ifndef HAVE_VSNPRINTF +#include +int vsnprintf (char *str, size_t count, const char *fmt, va_list arg); +#endif + +/* 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 -/* 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 */ +/* Enable system fnmatch only on systems where fnmatch.h is usable. + If the fnmatch on your system is buggy, undef this symbol and a + replacement implementation will be used instead. */ +#ifdef HAVE_WORKING_FNMATCH_H +# define SYSTEM_FNMATCH +#endif + +#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 + +int fnmatch (const char *, const char *, int); +#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 + +/* If uintptr_t isn't defined, simply typedef it to unsigned long. */ +#ifndef HAVE_UINTPTR_T +typedef unsigned long uintptr_t; +#endif + +/* If intptr_t isn't defined, simply typedef it to long. */ +#ifndef HAVE_INTPTR_T +typedef long intptr_t; +#endif #endif /* SYSDEP_H */