/* 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-separated 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
  
/********************************************************************
 The Microsoft section
 ********************************************************************/
/* The following is used because 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_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 NO_SYS_UN_H
#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)
#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(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_BEOS_R5)
#define get_last_socket_error() errno
#define clear_socket_error()    errno=0
#define FIONBIO SO_NONBLOCK
#define ioctlsocket(a,b,c)		  setsockopt((a),SOL_SOCKET,(b),(c),sizeof(*(c)))
#define readsocket(s,b,n)       recv((s),(b),(n),0)
#define writesocket(s,b,n)      send((s),(b),(n),0)
#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 ioctlsocket(a,b,c)      ioctl(a,b,c)
#if defined(NETWARE_LIBC)
#define readsocket(s,b,n)       recv((s),(b),(n),0)
#define writesocket(s,b,n)      send((s),(b),(n),0)
#else
#define readsocket(s,b,n)       recv((s),(char*)(b),(n),0)
#define writesocket(s,b,n)      send((s),(char*)(b),(n),0)
#endif
#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 /* never the case */
#  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 guard 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 sufficient to guard "vanilla" NT calls with GetVersion
	* alone, while NT 4.0 and above interfaces ought to be linked with
	* GetProcAddress at run-time.
	*/
#      define _WIN32_WINNT 0x0400
#    endif
#    if !defined(OPENSSL_NO_SOCK) && (defined(_WIN32_WINNT) || defined(_WIN32_WCE))
       /*
        * Just like defining _WIN32_WINNT including winsock2.h implies
        * certain "discipline" for maintaining [broad] binary compatibility.
        * As long as structures are invariant among Winsock versions,
        * it's sufficient to check for specific Winsock2 API availability
        * at run-time [DSO_global_lookup is recommended]...
        */
#      include <winsock2.h>
#      include <ws2tcpip.h>
       /* yes, they have to be #included prior to <windows.h> */
#    endif
#    include <windows.h>
#    include <stdio.h>
#    include <stddef.h>
#    include <errno.h>
#    if defined(_WIN32_WCE) && !defined(EACCES)
#      define EACCES   13
#    endif
#    include <string.h>
#    ifdef _WIN64
#      define strlen(s) _strlen31(s)
/* cut strings to 2GB */
static __inline unsigned int _strlen31(const char *str)
	{
	unsigned int len=0;
	while (*str && len<0x80000000U) str++, len++;
	return len&0x7FFFFFFF;
	}
#    endif
#    include <malloc.h>
#    if defined(_MSC_VER) && _MSC_VER<=1200 && defined(_MT) && defined(isspace)
       /* compensate for bug in VC6 ctype.h */
#      undef isspace
#      undef isdigit
#      undef isalnum
#      undef isupper
#      undef isxdigit
#    endif
#    if defined(_MSC_VER) && !defined(_WIN32_WCE) && !defined(_DLL) && defined(stdin)
#      if _MSC_VER>=1300 && _MSC_VER<1600
#        undef stdin
#        undef stdout
#        undef stderr
         FILE *__iob_func();
#        define stdin  (&__iob_func()[0])
#        define stdout (&__iob_func()[1])
#        define stderr (&__iob_func()[2])
#      elif _MSC_VER<1300 && defined(I_CAN_LIVE_WITH_LNK4049)
#        undef stdin
#        undef stdout
#        undef stderr
         /* pre-1300 has __p__iob(), but it's available only in msvcrt.lib,
          * or in other words with /MD. Declaring implicit import, i.e.
          * with _imp_ prefix, works correctly with all compiler options,
	  * but without /MD results in LINK warning LNK4049:
	  * 'locally defined symbol "__iob" imported'.
          */
         extern FILE *_imp___iob;
#        define stdin  (&_imp___iob[0])
#        define stdout (&_imp___iob[1])
#        define stderr (&_imp___iob[2])
#      endif
#    endif
#  endif
#    include <io.h>
#    include <fcntl.h>

#  ifdef OPENSSL_SYS_WINCE
#    define OPENSSL_NO_POSIX_IO
#  endif

#  if defined (__BORLANDC__)
#    define _setmode setmode
#    define _O_TEXT O_TEXT
#    define _O_BINARY O_BINARY
#    define _int64 __int64
#    define _kbhit kbhit
#  endif

#  define EXIT(n) exit(n)
#  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

/* Avoid Windows 8 SDK GetVersion deprecated problems */
#if defined(_MSC_VER) && _MSC_VER>=1800
#  define check_winnt() (1)
#else
#  define check_winnt() (GetVersion() < 0x80000000)
#endif

#else /* The non-microsoft 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
       extern int GetThreadID(void);
/* #      include <conio.h> */
       extern int kbhit(void);
#    else
#      include <screen.h>
#    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
#    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
#    ifdef OPENSSL_SYS_WIN32_CYGWIN
#      include <io.h>
#      include <fcntl.h>
#    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


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

#if defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_DGRAM)
#  define OPENSSL_NO_DGRAM
#endif

#ifdef USE_SOCKETS
#  if defined(WINDOWS) || defined(MSDOS)
      /* 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__)
#      if defined(_WIN32_WCE) && _WIN32_WCE<410
#        define getservbyname _masked_declaration_getservbyname
#      endif
#      if !defined(IPPROTO_IP)
         /* winsock[2].h was included already? */
#        include <winsock.h>
#      endif
#      ifdef getservbyname
#        undef getservbyname
         /* this is used to be wcecompat/include/winsock_extras.h */
         struct servent* PASCAL getservbyname(const char*,const char*);
#      endif

#      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(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>
#        if defined(NETWARE_CLIB)
#          include <sys/bsdskt.h>
#        else
#          include <sys/select.h>
#        endif
#        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>
#      ifndef NO_SYS_UN_H
#        ifdef OPENSSL_SYS_VXWORKS
#          include <streams/un.h>
#        else
#          include <sys/un.h>
#        endif
#        ifndef UNIX_PATH_MAX
#          define UNIX_PATH_MAX sizeof(((struct sockaddr_un *)NULL)->sun_path)
#        endif
#      endif
#      ifdef FILIO_H
#        include <sys/filio.h> /* Added for FIONBIO under unixware */
#      endif
#      include <netinet/in.h>
#      if !defined(OPENSSL_SYS_BEOS_R5)
#      include <arpa/inet.h>
#    endif
#    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)
#          include <sys/ioctl.h>
#        endif
#      endif
#    endif

#    ifdef VMS
#      include <unixio.h>
#      if defined(TCPIP_TYPE_SOCKETSHR)
#        include <socketshr.h>
#      endif
#    endif

#    define SSLeay_Read(a,b,c)     read((a),(b),(c))
#    define SSLeay_Write(a,b,c)    write((a),(b),(c))
#    define SHUTDOWN(fd)    { shutdown((fd),0); closesocket((fd)); }
#    define SHUTDOWN2(fd)   { shutdown((fd),2); closesocket((fd)); }
#    ifndef INVALID_SOCKET
#    define INVALID_SOCKET	(-1)
#    endif /* INVALID_SOCKET */
#  endif

/* Some IPv6 implementations are broken, disable them in known bad
 * versions.
 */
#  if !defined(OPENSSL_USE_IPV6)
#    if defined(AF_INET6) && !defined(OPENSSL_SYS_BEOS_BONE) && !defined(NETWARE_CLIB)
#      define OPENSSL_USE_IPV6 1
#    else
#      define OPENSSL_USE_IPV6 0
#    endif
#  endif

#endif

#if defined(sun) && !defined(__svr4__) && !defined(__SVR4)
  /* include headers first, so our defines don't break it */
#include <stdlib.h>
#include <string.h>
  /* bcopy can handle overlapping moves according to SunOS 4.1.4 manpage */
# define memmove(s1,s2,n) bcopy((s2),(s1),(n))
# define strtoul(s,e,b) ((unsigned long int)strtol((s),(e),(b)))
extern char *sys_errlist[]; extern int sys_nerr;
# define strerror(errnum) \
	(((errnum)<0 || (errnum)>=sys_nerr) ? NULL : sys_errlist[errnum])
  /* Being signed SunOS 4.x memcpy breaks ASN1_OBJECT table lookup */
#include "crypto/o_str.h"
# define memcmp OPENSSL_memcmp
#endif

#ifndef OPENSSL_EXIT
# if defined(MONOLITH) && !defined(OPENSSL_C)
#  define OPENSSL_EXIT(n) return(n)
# else
#  define OPENSSL_EXIT(n) do { EXIT(n); return(n); } while(0)
# endif
#endif

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

#define DG_GCC_BUG	/* gcc < 2.6.3 on DGUX */

#ifdef sgi
#define IRIX_CC_BUG	/* all version of IRIX I've tested (4.* 5.*) */
#endif
#ifdef OPENSSL_SYS_SNI
#define IRIX_CC_BUG	/* CDS++ up to V2.0Bsomething suffered from the same bug.*/
#endif

#if defined(OPENSSL_SYS_WINDOWS)
#  define strcasecmp _stricmp
#  define strncasecmp _strnicmp
#elif defined(OPENSSL_SYS_VMS)
/* VMS below version 7.0 doesn't have strcasecmp() */
#  include "o_str.h"
#  define strcasecmp OPENSSL_strcasecmp
#  define strncasecmp OPENSSL_strncasecmp
#  define OPENSSL_IMPLEMENTS_strncasecmp
#elif defined(OPENSSL_SYS_OS2) && defined(__EMX__)
#  define strcasecmp stricmp
#  define strncasecmp strnicmp
#elif defined(OPENSSL_SYS_NETWARE)
#  include <string.h>
#  if defined(NETWARE_CLIB)
#    define strcasecmp stricmp
#    define strncasecmp strnicmp
#  endif /* NETWARE_CLIB */
#endif

#if defined(OPENSSL_SYS_OS2) && defined(__EMX__)
# include <io.h>
# include <fcntl.h>
# define NO_SYSLOG
#endif

/* vxworks */
#if defined(OPENSSL_SYS_VXWORKS)
#include <ioLib.h>
#include <tickLib.h>
#include <sysLib.h>

#define TTY_STRUCT int

#define sleep(a) taskDelay((a) * sysClkRateGet())

#include <vxWorks.h>
#include <sockLib.h>
#include <taskLib.h>

#define getpid taskIdSelf

/* NOTE: these are implemented by helpers in database app!
 * if the database is not linked, we need to implement them
 * elswhere */
struct hostent *gethostbyname(const char *name);
struct hostent *gethostbyaddr(const char *addr, int length, int type);
struct servent *getservbyname(const char *name, const char *proto);

#endif
/* end vxworks */

/* beos */
#if defined(OPENSSL_SYS_BEOS_R5)
#define SO_ERROR 0
#define NO_SYS_UN
#define IPPROTO_IP 0
#include <OS.h>
#endif

#if !defined(inline) && !defined(__cplusplus)
# if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
   /* do nothing, inline works */
# elif defined(__GNUC__) && __GNUC__>=2
#  define inline __inline__
# elif defined(_MSC_VER)
  /*
   * Visual Studio: inline is available in C++ only, however
   * __inline is available for C, see
   * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
   */
#  define inline __inline
# else
#  define inline
# endif
#endif

#ifdef  __cplusplus
}
#endif

#endif