/* e_os.h *//* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. *  * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to.  The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code.  The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). *  * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. *  * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *    "This product includes cryptographic software written by *     Eric Young (eay@cryptsoft.com)" *    The word 'cryptographic' can be left out if the rouines from the library *    being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from  *    the apps directory (application code) you must include an acknowledgement: *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" *  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. *  * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed.  i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */#ifndef HEADER_E_OS_H#define HEADER_E_OS_H#include "opensslconf.h"#include "e_os2.h"/* <openssl/e_os2.h> contains what we can justify to make visible * to the outside; this file e_os.h is not part of the exported * interface. */#ifdef  __cplusplusextern "C" {#endif/* Used to checking reference counts, most while doing perl5 stuff :-) */#ifdef REF_PRINT#undef REF_PRINT#define REF_PRINT(a,b)	fprintf(stderr,"%08X:%4d:%s\n",(int)b,b->references,a)#endif#ifndef DEVRANDOM/* set this to a comma-separated list of 'random' device files to try out. * My default, we will try to read at least one of these files */#define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"#endif#ifndef DEVRANDOM_EGD/* set this to a comma-seperated list of 'egd' sockets to try out. These * sockets will be tried in the order listed in case accessing the device files * listed in DEVRANDOM did not return enough entropy. */#define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"#endif#if defined(OPENSSL_SYS_VXWORKS)#  define NO_SYS_PARAM_H#  define NO_CHMOD#  define NO_SYSLOG#endif  #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC)# if macintosh==1#  ifndef MAC_OS_GUSI_SOURCE#    define MAC_OS_pre_X#    define NO_SYS_TYPES_H     typedef long ssize_t;#  endif#  define NO_SYS_PARAM_H#  define NO_CHMOD#  define NO_SYSLOG#  undef  DEVRANDOM#  define GETPID_IS_MEANINGLESS# endif#endif/******************************************************************** The Microsoft section ********************************************************************//* The following is used becaue of the small stack in some * Microsoft operating systems */#if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYSNAME_WIN32)#  define MS_STATIC	static#else#  define MS_STATIC#endif#if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)#  define WIN32#endif#if defined(OPENSSL_SYS_WIN16) && !defined(WIN16)#  define WIN16#endif#if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)#  define WINDOWS#endif#if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)#  define MSDOS#endif#if defined(MSDOS) && !defined(GETPID_IS_MEANINGLESS)#  define GETPID_IS_MEANINGLESS#endif#ifdef WIN32#define get_last_sys_error()	GetLastError()#define clear_sys_error()	SetLastError(0)#if !defined(WINNT)#define WIN_CONSOLE_BUG#endif#else#define get_last_sys_error()	errno#define clear_sys_error()	errno=0#endif#if defined(WINDOWS)#define get_last_socket_error()	WSAGetLastError()#define clear_socket_error()	WSASetLastError(0)#define readsocket(s,b,n)	recv((s),(b),(n),0)#define writesocket(s,b,n)	send((s),(b),(n),0)#define EADDRINUSE		WSAEADDRINUSE#elif defined(__DJGPP__)#define WATT32#define get_last_socket_error()	errno#define clear_socket_error()	errno=0#define closesocket(s)		close_s(s)#define readsocket(s,b,n)	read_s(s,b,n)#define writesocket(s,b,n)	send(s,b,n,0)#elif defined(MAC_OS_pre_X)#define get_last_socket_error()	errno#define clear_socket_error()	errno=0#define closesocket(s)		MacSocket_close(s)#define readsocket(s,b,n)	MacSocket_recv((s),(b),(n),true)#define writesocket(s,b,n)	MacSocket_send((s),(b),(n))#elif defined(OPENSSL_SYS_VMS)#define get_last_socket_error() errno#define clear_socket_error()    errno=0#define ioctlsocket(a,b,c)      ioctl(a,b,c)#define closesocket(s)          close(s)#define readsocket(s,b,n)       recv((s),(b),(n),0)#define writesocket(s,b,n)      send((s),(b),(n),0)#elif defined(OPENSSL_SYS_VXWORKS)#define get_last_socket_error()	errno#define clear_socket_error()	errno=0#define ioctlsocket(a,b,c)	    ioctl((a),(b),(int)(c))#define closesocket(s)		    close(s)#define readsocket(s,b,n)	    read((s),(b),(n))#define writesocket(s,b,n)	    write((s),(char *)(b),(n))#elif defined(OPENSSL_SYS_NETWARE)#if defined(NETWARE_BSDSOCK)#define get_last_socket_error() errno#define clear_socket_error()    errno=0#define closesocket(s)          close(s)#define readsocket(s,b,n)       recv((s),(b),(n),0)#define writesocket(s,b,n)      send((s),(b),(n),0)#else#define get_last_socket_error()	WSAGetLastError()#define clear_socket_error()	WSASetLastError(0)#define readsocket(s,b,n)		recv((s),(b),(n),0)#define writesocket(s,b,n)		send((s),(b),(n),0)#endif#else#define get_last_socket_error()	errno#define clear_socket_error()	errno=0#define ioctlsocket(a,b,c)	ioctl(a,b,c)#define closesocket(s)		close(s)#define readsocket(s,b,n)	read((s),(b),(n))#define writesocket(s,b,n)	write((s),(b),(n))#endif#ifdef WIN16#  define MS_CALLBACK	_far _loadds#  define MS_FAR	_far#else#  define MS_CALLBACK#  define MS_FAR#endif#ifdef OPENSSL_NO_STDIO#  undef OPENSSL_NO_FP_API#  define OPENSSL_NO_FP_API#endif#if (defined(WINDOWS) || defined(MSDOS))#  ifdef __DJGPP__#    include <unistd.h>#    include <sys/stat.h>#    include <sys/socket.h>#    include <tcp.h>#    include <netdb.h>#    define _setmode setmode#    define _O_TEXT O_TEXT#    define _O_BINARY O_BINARY#    undef DEVRANDOM#    define DEVRANDOM "/dev/urandom\x24"#  endif /* __DJGPP__ */#  ifndef S_IFDIR#    define S_IFDIR	_S_IFDIR#  endif#  ifndef S_IFMT#    define S_IFMT	_S_IFMT#  endif#  if !defined(WINNT) && !defined(__DJGPP__)#    define NO_SYSLOG#  endif#  define NO_DIRENT#  ifdef WINDOWS#    if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)       /*	* Defining _WIN32_WINNT here in e_os.h implies certain "discipline."	* Most notably we ought to check for availability of each specific	* routine with GetProcAddress() and/or quard NT-specific calls with	* GetVersion() < 0x80000000. One can argue that in latter "or" case	* we ought to /DELAYLOAD some .DLLs in order to protect ourselves	* against run-time link errors. This doesn't seem to be necessary,	* because it turned out that already Windows 95, first non-NT Win32	* implementation, is equipped with at least NT 3.51 stubs, dummy	* routines with same name, but which do nothing. Meaning that it's	* apparently appropriate to guard generic NT calls with GetVersion	* alone, while NT 4.0 and above calls ought to be additionally	* checked upon with GetProcAddress.	*/#      define _WIN32_WINNT 0x0400#    endif#    include <windows.h>#    include <stddef.h>#    include <errno.h>#    include <string.h>#    ifdef _WIN64#      define strlen(s) _strlen31(s)/* cut strings to 2GB */static unsigned int _strlen31(const char *str)	{	unsigned int len=0;	while (*str && len<0x80000000U) str++, len++;	return len&0x7FFFFFFF;	}#    endif#    include <malloc.h>#  endif#  include <io.h>#  include <fcntl.h>#  ifdef OPENSSL_SYS_WINCE#    include <winsock_extras.h>#  endif#  define ssize_t long#  if defined (__BORLANDC__)#    define _setmode setmode#    define _O_TEXT O_TEXT#    define _O_BINARY O_BINARY#    define _int64 __int64#    define _kbhit kbhit#  endif#  if defined(WIN16) && defined(SSLEAY) && defined(_WINEXITNOPERSIST)#    define EXIT(n) _wsetexit(_WINEXITNOPERSIST)#    define OPENSSL_EXIT(n) do { if (n == 0) EXIT(n); return(n); } while(0)#  else#    define EXIT(n) exit(n)#  endif#  define LIST_SEPARATOR_CHAR ';'#  ifndef X_OK#    define X_OK	0#  endif#  ifndef W_OK#    define W_OK	2#  endif#  ifndef R_OK#    define R_OK	4#  endif#  define OPENSSL_CONF	"openssl.cnf"#  define SSLEAY_CONF	OPENSSL_CONF#  define NUL_DEV	"nul"#  define RFILE		".rnd"#  ifdef OPENSSL_SYS_WINCE#    define DEFAULT_HOME  ""#  else#    define DEFAULT_HOME  "C:"#  endif#else /* The non-microsoft world world */#  ifdef OPENSSL_SYS_VMS#    define VMS 1  /* some programs don't include stdlib, so exit() and others give implicit      function warnings */#    include <stdlib.h>#    if defined(__DECC)#      include <unistd.h>#    else