/* 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 <openssl/opensslconf.h>

#include <openssl/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  __cplusplus

extern "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)&&!defined(SYMBIAN)

#  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)

#  definess 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)&&!defined(SYMBIAN)

#  define GETPID_IS_MEANINGLESS

#endif

#if defined(WIN32)&&!defined(SYMBIAN)

#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)&&!defined(SYMBIAN)

#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

#if defined(WIN16)&&!defined(SYMBIAN)

#  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) && !defined(SYMBIAN))

#  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

#      include <unixlib.h>

#    endif

#    define OPENSSL_CONF	"openssl.cnf"

#    define SSLEAY_CONF		OPENSSL_CONF

#    define RFILE		".rnd"

#    define LIST_SEPARATOR_CHAR ','

#    define NUL_DEV		"NLA0:"

  /* We don't have any well-defined random devices on VMS, yet... */

#    undef DEVRANDOM

  /* We need to do this since VMS has the following coding on status codes:

     Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...

               The important thing to know is that odd numbers are considered

	       good, while even ones are considered errors.

     Bits 3-15: actual status number

     Bits 16-27: facility number.  0 is considered "unknown"

     Bits 28-31: control bits.  If bit 28 is set, the shell won't try to

                 output the message (which, for random codes, just looks ugly)

     So, what we do here is to change 0 to 1 to get the default success status,

     and everything else is shifted up to fit into the status number field, and

     the status is tagged as an error, which I believe is what is wanted here.

     -- Richard Levitte

  */

#    define EXIT(n)		do { int __VMS_EXIT = n; \

                                     if (__VMS_EXIT == 0) \

				       __VMS_EXIT = 1; \

				     else \

				       __VMS_EXIT = (n << 3) | 2; \

                                     __VMS_EXIT |= 0x10000000; \

				     exit(__VMS_EXIT); } while(0)

#    define NO_SYS_PARAM_H

#  elif defined(OPENSSL_SYS_NETWARE)

#    include <fcntl.h>

#    include <unistd.h>

#    define NO_SYS_TYPES_H

#    undef  DEVRANDOM

#    ifdef NETWARE_CLIB

#      define getpid GetThreadID

#    endif

#    define NO_SYSLOG

#    define _setmode setmode

#    define _kbhit kbhit

#    define _O_TEXT O_TEXT

#    define _O_BINARY O_BINARY

#    define OPENSSL_CONF   "openssl.cnf"

#    define SSLEAY_CONF    OPENSSL_CONF

#    define RFILE    ".rnd"

#    define LIST_SEPARATOR_CHAR ';'

#    define EXIT(n)  { if (n) printf("ERROR: %d\n", (int)n); exit(n); }

#  else

    /* !defined VMS */

#    ifdef OPENSSL_SYS_MPE

#      define NO_SYS_PARAM_H

#    endif

#    ifdef OPENSSL_UNISTD

#      include OPENSSL_UNISTD

#    else

#      include <unistd.h>

#    endif

#    ifndef NO_SYS_TYPES_H

#      include <sys/types.h>

#    endif

#    if defined(NeXT) || defined(OPENSSL_SYS_NEWS4)

#      define pid_t int /* pid_t is missing on NEXTSTEP/OPENSTEP

                         * (unless when compiling with -D_POSIX_SOURCE,

                         * which doesn't work for us) */

#    endif

#    if defined(NeXT) || defined(OPENSSL_SYS_NEWS4) || defined(OPENSSL_SYS_SUNOS)

#      define ssize_t int /* ditto */

#    endif

#    ifdef OPENSSL_SYS_NEWS4 /* setvbuf is missing on mips-sony-bsd */

#      define setvbuf(a, b, c, d) setbuffer((a), (b), (d))

       typedef unsigned long clock_t;

#    endif

#    define OPENSSL_CONF	"openssl.cnf"

#    define SSLEAY_CONF		OPENSSL_CONF

#    define RFILE		".rnd"

#    define LIST_SEPARATOR_CHAR ':'

#    define NUL_DEV		"/dev/null"

#    define EXIT(n)		exit(n)

#  endif

#  define SSLeay_getpid()	getpid()

#endif

/*************/

#ifdef USE_SOCKETS

#  if defined(WINDOWS) || defined(MSDOS) && !defined(SYMBIAN)

      /* windows world */

#    ifdef OPENSSL_NO_SOCK

#      define SSLeay_Write(a,b,c)	(-1)

#      define SSLeay_Read(a,b,c)	(-1)

#      define SHUTDOWN(fd)		close(fd)

#      define SHUTDOWN2(fd)		close(fd)

#    elif !defined(__DJGPP__)

#      include <winsock.h>

extern HINSTANCE _hInstance;

#      ifdef _WIN64

/*

 * Even though sizeof(SOCKET) is 8, it's safe to cast it to int, because

 * the value constitutes an index in per-process table of limited size

 * and not a real pointer.

 */

#        define socket(d,t,p)	((int)socket(d,t,p))

#        define accept(s,f,l)	((int)accept(s,f,l))

#      endif

#      define SSLeay_Write(a,b,c)	send((a),(b),(c),0)

#      define SSLeay_Read(a,b,c)	recv((a),(b),(c),0)

#      define SHUTDOWN(fd)		{ shutdown((fd),0); closesocket(fd); }

#      define SHUTDOWN2(fd)		{ shutdown((fd),2); closesocket(fd); }

#    else

#      define SSLeay_Write(a,b,c)	write_s(a,b,c,0)

#      define SSLeay_Read(a,b,c)	read_s(a,b,c)

#      define SHUTDOWN(fd)		close_s(fd)

#      define SHUTDOWN2(fd)		close_s(fd)

#    endif

#  elif defined(MAC_OS_pre_X)

#    include "MacSocket.h"

#    define SSLeay_Write(a,b,c)		MacSocket_send((a),(b),(c))

#    define SSLeay_Read(a,b,c)		MacSocket_recv((a),(b),(c),true)

#    define SHUTDOWN(fd)		MacSocket_close(fd)

#    define SHUTDOWN2(fd)		MacSocket_close(fd)

#  elif defined(OPENSSL_SYS_NETWARE)

         /* NetWare uses the WinSock2 interfaces by default, but can be configured for BSD

         */

#      if defined(NETWARE_BSDSOCK)

#        include <sys/socket.h>

#        include <netinet/in.h>

#        include <sys/time.h>

#        include <sys/select.h>

#        define INVALID_SOCKET (int)(~0)

#      else

#        include <novsock2.h>

#      endif

#      define SSLeay_Write(a,b,c)   send((a),(b),(c),0)

#      define SSLeay_Read(a,b,c) recv((a),(b),(c),0)

#      define SHUTDOWN(fd)    { shutdown((fd),0); closesocket(fd); }

#      define SHUTDOWN2(fd)      { shutdown((fd),2); closesocket(fd); }

#  else

#    ifndef NO_SYS_PARAM_H

#      include <sys/param.h>

#    endif

#    ifdef OPENSSL_SYS_VXWORKS

#      include <time.h> 

#    elif !defined(OPENSSL_SYS_MPE)

#      include <sys/time.h> /* Needed under linux for FD_XXX */

#    endif

#    include <netdb.h>

#    if defined(OPENSSL_SYS_VMS_NODECC)

#      include <socket.h>

#      include <in.h>

#      include <inet.h>

#    else

#      include <sys/socket.h>

#      ifdef FILIO_H

#        include <sys/filio.h> /* Added for FIONBIO under unixware */

#      endif

#      include <netinet/in.h>

#      include <arpa/inet.h>

#    endif

#    if defined(NeXT) || defined(_NEXT_SOURCE)

#      include <sys/fcntl.h>

#      include <sys/types.h>

#    endif

#    ifdef OPENSSL_SYS_AIX

#      include <sys/select.h>

#    endif

#    ifdef __QNX__

#      include <sys/select.h>

#    endif

#    if defined(sun)

#      include <sys/filio.h>

#    else

#      ifndef VMS

#        include <sys/ioctl.h>

#      else

	 /* ioctl is only in VMS > 7.0 and when socketshr is not used */

#        if !defined(TCPIP_TYPE_SOCKETSHR) && defined(__VMS_VER) && (__VMS_VER > 70000000)