xref: /freebsd/crypto/openssl/e_os.h (revision 2be1a816b9ff69588e55be0a84cbe2a31efc0f2f)
1 /* e_os.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #ifndef HEADER_E_OS_H
60 #define HEADER_E_OS_H
61 
62 #include <openssl/opensslconf.h>
63 
64 #include <openssl/e_os2.h>
65 /* <openssl/e_os2.h> contains what we can justify to make visible
66  * to the outside; this file e_os.h is not part of the exported
67  * interface. */
68 
69 #ifdef  __cplusplus
70 extern "C" {
71 #endif
72 
73 /* Used to checking reference counts, most while doing perl5 stuff :-) */
74 #ifdef REF_PRINT
75 #undef REF_PRINT
76 #define REF_PRINT(a,b)	fprintf(stderr,"%08X:%4d:%s\n",(int)b,b->references,a)
77 #endif
78 
79 #ifndef DEVRANDOM
80 /* set this to a comma-separated list of 'random' device files to try out.
81  * My default, we will try to read at least one of these files */
82 #define DEVRANDOM "/dev/urandom","/dev/random","/dev/srandom"
83 #endif
84 #ifndef DEVRANDOM_EGD
85 /* set this to a comma-seperated list of 'egd' sockets to try out. These
86  * sockets will be tried in the order listed in case accessing the device files
87  * listed in DEVRANDOM did not return enough entropy. */
88 #define DEVRANDOM_EGD "/var/run/egd-pool","/dev/egd-pool","/etc/egd-pool","/etc/entropy"
89 #endif
90 
91 #if defined(OPENSSL_SYS_VXWORKS)
92 #  define NO_SYS_PARAM_H
93 #  define NO_CHMOD
94 #  define NO_SYSLOG
95 #endif
96 
97 #if defined(OPENSSL_SYS_MACINTOSH_CLASSIC)
98 # if macintosh==1
99 #  ifndef MAC_OS_GUSI_SOURCE
100 #    define MAC_OS_pre_X
101 #    define NO_SYS_TYPES_H
102      typedef long ssize_t;
103 #  endif
104 #  define NO_SYS_PARAM_H
105 #  define NO_CHMOD
106 #  define NO_SYSLOG
107 #  undef  DEVRANDOM
108 #  define GETPID_IS_MEANINGLESS
109 # endif
110 #endif
111 
112 /********************************************************************
113  The Microsoft section
114  ********************************************************************/
115 /* The following is used becaue of the small stack in some
116  * Microsoft operating systems */
117 #if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYSNAME_WIN32)
118 #  define MS_STATIC	static
119 #else
120 #  define MS_STATIC
121 #endif
122 
123 #if defined(OPENSSL_SYS_WIN32) && !defined(WIN32)
124 #  define WIN32
125 #endif
126 #if defined(OPENSSL_SYS_WIN16) && !defined(WIN16)
127 #  define WIN16
128 #endif
129 #if defined(OPENSSL_SYS_WINDOWS) && !defined(WINDOWS)
130 #  define WINDOWS
131 #endif
132 #if defined(OPENSSL_SYS_MSDOS) && !defined(MSDOS)
133 #  define MSDOS
134 #endif
135 
136 #if defined(MSDOS) && !defined(GETPID_IS_MEANINGLESS)
137 #  define GETPID_IS_MEANINGLESS
138 #endif
139 
140 #ifdef WIN32
141 #define get_last_sys_error()	GetLastError()
142 #define clear_sys_error()	SetLastError(0)
143 #if !defined(WINNT)
144 #define WIN_CONSOLE_BUG
145 #endif
146 #else
147 #define get_last_sys_error()	errno
148 #define clear_sys_error()	errno=0
149 #endif
150 
151 #if defined(WINDOWS)
152 #define get_last_socket_error()	WSAGetLastError()
153 #define clear_socket_error()	WSASetLastError(0)
154 #define readsocket(s,b,n)	recv((s),(b),(n),0)
155 #define writesocket(s,b,n)	send((s),(b),(n),0)
156 #define EADDRINUSE		WSAEADDRINUSE
157 #elif defined(__DJGPP__)
158 #define WATT32
159 #define get_last_socket_error()	errno
160 #define clear_socket_error()	errno=0
161 #define closesocket(s)		close_s(s)
162 #define readsocket(s,b,n)	read_s(s,b,n)
163 #define writesocket(s,b,n)	send(s,b,n,0)
164 #elif defined(MAC_OS_pre_X)
165 #define get_last_socket_error()	errno
166 #define clear_socket_error()	errno=0
167 #define closesocket(s)		MacSocket_close(s)
168 #define readsocket(s,b,n)	MacSocket_recv((s),(b),(n),true)
169 #define writesocket(s,b,n)	MacSocket_send((s),(b),(n))
170 #elif defined(OPENSSL_SYS_VMS)
171 #define get_last_socket_error() errno
172 #define clear_socket_error()    errno=0
173 #define ioctlsocket(a,b,c)      ioctl(a,b,c)
174 #define closesocket(s)          close(s)
175 #define readsocket(s,b,n)       recv((s),(b),(n),0)
176 #define writesocket(s,b,n)      send((s),(b),(n),0)
177 #elif defined(OPENSSL_SYS_VXWORKS)
178 #define get_last_socket_error()	errno
179 #define clear_socket_error()	errno=0
180 #define ioctlsocket(a,b,c)	    ioctl((a),(b),(int)(c))
181 #define closesocket(s)		    close(s)
182 #define readsocket(s,b,n)	    read((s),(b),(n))
183 #define writesocket(s,b,n)	    write((s),(char *)(b),(n))
184 #elif defined(OPENSSL_SYS_NETWARE)
185 #if defined(NETWARE_BSDSOCK)
186 #define get_last_socket_error() errno
187 #define clear_socket_error()    errno=0
188 #define closesocket(s)          close(s)
189 #define readsocket(s,b,n)       recv((s),(b),(n),0)
190 #define writesocket(s,b,n)      send((s),(b),(n),0)
191 #else
192 #define get_last_socket_error()	WSAGetLastError()
193 #define clear_socket_error()	WSASetLastError(0)
194 #define readsocket(s,b,n)		recv((s),(b),(n),0)
195 #define writesocket(s,b,n)		send((s),(b),(n),0)
196 #endif
197 #else
198 #define get_last_socket_error()	errno
199 #define clear_socket_error()	errno=0
200 #define ioctlsocket(a,b,c)	ioctl(a,b,c)
201 #define closesocket(s)		close(s)
202 #define readsocket(s,b,n)	read((s),(b),(n))
203 #define writesocket(s,b,n)	write((s),(b),(n))
204 #endif
205 
206 #ifdef WIN16
207 #  define MS_CALLBACK	_far _loadds
208 #  define MS_FAR	_far
209 #else
210 #  define MS_CALLBACK
211 #  define MS_FAR
212 #endif
213 
214 #ifdef OPENSSL_NO_STDIO
215 #  undef OPENSSL_NO_FP_API
216 #  define OPENSSL_NO_FP_API
217 #endif
218 
219 #if (defined(WINDOWS) || defined(MSDOS))
220 
221 #  ifdef __DJGPP__
222 #    include <unistd.h>
223 #    include <sys/stat.h>
224 #    include <sys/socket.h>
225 #    include <tcp.h>
226 #    include <netdb.h>
227 #    define _setmode setmode
228 #    define _O_TEXT O_TEXT
229 #    define _O_BINARY O_BINARY
230 #    undef DEVRANDOM
231 #    define DEVRANDOM "/dev/urandom\x24"
232 #  endif /* __DJGPP__ */
233 
234 #  ifndef S_IFDIR
235 #    define S_IFDIR	_S_IFDIR
236 #  endif
237 
238 #  ifndef S_IFMT
239 #    define S_IFMT	_S_IFMT
240 #  endif
241 
242 #  if !defined(WINNT) && !defined(__DJGPP__)
243 #    define NO_SYSLOG
244 #  endif
245 #  define NO_DIRENT
246 
247 #  ifdef WINDOWS
248 #    if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
249        /*
250 	* Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
251 	* Most notably we ought to check for availability of each specific
252 	* routine with GetProcAddress() and/or quard NT-specific calls with
253 	* GetVersion() < 0x80000000. One can argue that in latter "or" case
254 	* we ought to /DELAYLOAD some .DLLs in order to protect ourselves
255 	* against run-time link errors. This doesn't seem to be necessary,
256 	* because it turned out that already Windows 95, first non-NT Win32
257 	* implementation, is equipped with at least NT 3.51 stubs, dummy
258 	* routines with same name, but which do nothing. Meaning that it's
259 	* apparently appropriate to guard generic NT calls with GetVersion
260 	* alone, while NT 4.0 and above calls ought to be additionally
261 	* checked upon with GetProcAddress.
262 	*/
263 #      define _WIN32_WINNT 0x0400
264 #    endif
265 #    include <windows.h>
266 #    include <stddef.h>
267 #    include <errno.h>
268 #    include <string.h>
269 #    ifdef _WIN64
270 #      define strlen(s) _strlen31(s)
271 /* cut strings to 2GB */
272 static unsigned int _strlen31(const char *str)
273 	{
274 	unsigned int len=0;
275 	while (*str && len<0x80000000U) str++, len++;
276 	return len&0x7FFFFFFF;
277 	}
278 #    endif
279 #    include <malloc.h>
280 #  endif
281 #  include <io.h>
282 #  include <fcntl.h>
283 
284 #  ifdef OPENSSL_SYS_WINCE
285 #    include <winsock_extras.h>
286 #  endif
287 
288 #  define ssize_t long
289 
290 #  if defined (__BORLANDC__)
291 #    define _setmode setmode
292 #    define _O_TEXT O_TEXT
293 #    define _O_BINARY O_BINARY
294 #    define _int64 __int64
295 #    define _kbhit kbhit
296 #  endif
297 
298 #  if defined(WIN16) && defined(SSLEAY) && defined(_WINEXITNOPERSIST)
299 #    define EXIT(n) _wsetexit(_WINEXITNOPERSIST)
300 #    define OPENSSL_EXIT(n) do { if (n == 0) EXIT(n); return(n); } while(0)
301 #  else
302 #    define EXIT(n) exit(n)
303 #  endif
304 #  define LIST_SEPARATOR_CHAR ';'
305 #  ifndef X_OK
306 #    define X_OK	0
307 #  endif
308 #  ifndef W_OK
309 #    define W_OK	2
310 #  endif
311 #  ifndef R_OK
312 #    define R_OK	4
313 #  endif
314 #  define OPENSSL_CONF	"openssl.cnf"
315 #  define SSLEAY_CONF	OPENSSL_CONF
316 #  define NUL_DEV	"nul"
317 #  define RFILE		".rnd"
318 #  ifdef OPENSSL_SYS_WINCE
319 #    define DEFAULT_HOME  ""
320 #  else
321 #    define DEFAULT_HOME  "C:"
322 #  endif
323 
324 #else /* The non-microsoft world world */
325 
326 #  ifdef OPENSSL_SYS_VMS
327 #    define VMS 1
328   /* some programs don't include stdlib, so exit() and others give implicit
329      function warnings */
330 #    include <stdlib.h>
331 #    if defined(__DECC)
332 #      include <unistd.h>
333 #    else
334 #      include <unixlib.h>
335 #    endif
336 #    define OPENSSL_CONF	"openssl.cnf"
337 #    define SSLEAY_CONF		OPENSSL_CONF
338 #    define RFILE		".rnd"
339 #    define LIST_SEPARATOR_CHAR ','
340 #    define NUL_DEV		"NLA0:"
341   /* We don't have any well-defined random devices on VMS, yet... */
342 #    undef DEVRANDOM
343   /* We need to do this since VMS has the following coding on status codes:
344 
345      Bits 0-2: status type: 0 = warning, 1 = success, 2 = error, 3 = info ...
346                The important thing to know is that odd numbers are considered
347 	       good, while even ones are considered errors.
348      Bits 3-15: actual status number
349      Bits 16-27: facility number.  0 is considered "unknown"
350      Bits 28-31: control bits.  If bit 28 is set, the shell won't try to
351                  output the message (which, for random codes, just looks ugly)
352 
353      So, what we do here is to change 0 to 1 to get the default success status,
354      and everything else is shifted up to fit into the status number field, and
355      the status is tagged as an error, which I believe is what is wanted here.
356      -- Richard Levitte
357   */
358 #    define EXIT(n)		do { int __VMS_EXIT = n; \
359                                      if (__VMS_EXIT == 0) \
360 				       __VMS_EXIT = 1; \
361 				     else \
362 				       __VMS_EXIT = (n << 3) | 2; \
363                                      __VMS_EXIT |= 0x10000000; \
364 				     exit(__VMS_EXIT); } while(0)
365 #    define NO_SYS_PARAM_H
366 
367 #  elif defined(OPENSSL_SYS_NETWARE)
368 #    include <fcntl.h>
369 #    include <unistd.h>
370 #    define NO_SYS_TYPES_H
371 #    undef  DEVRANDOM
372 #    ifdef NETWARE_CLIB
373 #      define getpid GetThreadID
374 #    endif
375 #    define NO_SYSLOG
376 #    define _setmode setmode
377 #    define _kbhit kbhit
378 #    define _O_TEXT O_TEXT
379 #    define _O_BINARY O_BINARY
380 #    define OPENSSL_CONF   "openssl.cnf"
381 #    define SSLEAY_CONF    OPENSSL_CONF
382 #    define RFILE    ".rnd"
383 #    define LIST_SEPARATOR_CHAR ';'
384 #    define EXIT(n)  { if (n) printf("ERROR: %d\n", (int)n); exit(n); }
385 
386 #  else
387      /* !defined VMS */
388 #    ifdef OPENSSL_SYS_MPE
389 #      define NO_SYS_PARAM_H
390 #    endif
391 #    ifdef OPENSSL_UNISTD
392 #      include OPENSSL_UNISTD
393 #    else
394 #      include <unistd.h>
395 #    endif
396 #    ifndef NO_SYS_TYPES_H
397 #      include <sys/types.h>
398 #    endif
399 #    if defined(NeXT) || defined(OPENSSL_SYS_NEWS4)
400 #      define pid_t int /* pid_t is missing on NEXTSTEP/OPENSTEP
401                          * (unless when compiling with -D_POSIX_SOURCE,
402                          * which doesn't work for us) */
403 #    endif
404 #    if defined(NeXT) || defined(OPENSSL_SYS_NEWS4) || defined(OPENSSL_SYS_SUNOS)
405 #      define ssize_t int /* ditto */
406 #    endif
407 #    ifdef OPENSSL_SYS_NEWS4 /* setvbuf is missing on mips-sony-bsd */
408 #      define setvbuf(a, b, c, d) setbuffer((a), (b), (d))
409        typedef unsigned long clock_t;
410 #    endif
411 
412 #    define OPENSSL_CONF	"openssl.cnf"
413 #    define SSLEAY_CONF		OPENSSL_CONF
414 #    define RFILE		".rnd"
415 #    define LIST_SEPARATOR_CHAR ':'
416 #    define NUL_DEV		"/dev/null"
417 #    define EXIT(n)		exit(n)
418 #  endif
419 
420 #  define SSLeay_getpid()	getpid()
421 
422 #endif
423 
424 
425 /*************/
426 
427 #ifdef USE_SOCKETS
428 #  if defined(WINDOWS) || defined(MSDOS)
429       /* windows world */
430 
431 #    ifdef OPENSSL_NO_SOCK
432 #      define SSLeay_Write(a,b,c)	(-1)
433 #      define SSLeay_Read(a,b,c)	(-1)
434 #      define SHUTDOWN(fd)		close(fd)
435 #      define SHUTDOWN2(fd)		close(fd)
436 #    elif !defined(__DJGPP__)
437 #      include <winsock.h>
438 extern HINSTANCE _hInstance;
439 #      ifdef _WIN64
440 /*
441  * Even though sizeof(SOCKET) is 8, it's safe to cast it to int, because
442  * the value constitutes an index in per-process table of limited size
443  * and not a real pointer.
444  */
445 #        define socket(d,t,p)	((int)socket(d,t,p))
446 #        define accept(s,f,l)	((int)accept(s,f,l))
447 #      endif
448 #      define SSLeay_Write(a,b,c)	send((a),(b),(c),0)
449 #      define SSLeay_Read(a,b,c)	recv((a),(b),(c),0)
450 #      define SHUTDOWN(fd)		{ shutdown((fd),0); closesocket(fd); }
451 #      define SHUTDOWN2(fd)		{ shutdown((fd),2); closesocket(fd); }
452 #    else
453 #      define SSLeay_Write(a,b,c)	write_s(a,b,c,0)
454 #      define SSLeay_Read(a,b,c)	read_s(a,b,c)
455 #      define SHUTDOWN(fd)		close_s(fd)
456 #      define SHUTDOWN2(fd)		close_s(fd)
457 #    endif
458 
459 #  elif defined(MAC_OS_pre_X)
460 
461 #    include "MacSocket.h"
462 #    define SSLeay_Write(a,b,c)		MacSocket_send((a),(b),(c))
463 #    define SSLeay_Read(a,b,c)		MacSocket_recv((a),(b),(c),true)
464 #    define SHUTDOWN(fd)		MacSocket_close(fd)
465 #    define SHUTDOWN2(fd)		MacSocket_close(fd)
466 
467 #  elif defined(OPENSSL_SYS_NETWARE)
468          /* NetWare uses the WinSock2 interfaces by default, but can be configured for BSD
469          */
470 #      if defined(NETWARE_BSDSOCK)
471 #        include <sys/socket.h>
472 #        include <netinet/in.h>
473 #        include <sys/time.h>
474 #        include <sys/select.h>
475 #        define INVALID_SOCKET (int)(~0)
476 #      else
477 #        include <novsock2.h>
478 #      endif
479 #      define SSLeay_Write(a,b,c)   send((a),(b),(c),0)
480 #      define SSLeay_Read(a,b,c) recv((a),(b),(c),0)
481 #      define SHUTDOWN(fd)    { shutdown((fd),0); closesocket(fd); }
482 #      define SHUTDOWN2(fd)      { shutdown((fd),2); closesocket(fd); }
483 
484 #  else
485 
486 #    ifndef NO_SYS_PARAM_H
487 #      include <sys/param.h>
488 #    endif
489 #    ifdef OPENSSL_SYS_VXWORKS
490 #      include <time.h>
491 #    elif !defined(OPENSSL_SYS_MPE)
492 #      include <sys/time.h> /* Needed under linux for FD_XXX */
493 #    endif
494 
495 #    include <netdb.h>
496 #    if defined(OPENSSL_SYS_VMS_NODECC)
497 #      include <socket.h>
498 #      include <in.h>
499 #      include <inet.h>
500 #    else
501 #      include <sys/socket.h>
502 #      ifdef FILIO_H
503 #        include <sys/filio.h> /* Added for FIONBIO under unixware */
504 #      endif
505 #      include <netinet/in.h>
506 #      include <arpa/inet.h>
507 #    endif
508 
509 #    if defined(NeXT) || defined(_NEXT_SOURCE)
510 #      include <sys/fcntl.h>
511 #      include <sys/types.h>
512 #    endif
513 
514 #    ifdef OPENSSL_SYS_AIX
515 #      include <sys/select.h>
516 #    endif
517 
518 #    ifdef __QNX__
519 #      include <sys/select.h>
520 #    endif
521 
522 #    if defined(sun)
523 #      include <sys/filio.h>
524 #    else
525 #      ifndef VMS
526 #        include <sys/ioctl.h>
527 #      else
528 	 /* ioctl is only in VMS > 7.0 and when socketshr is not used */
529 #        if !defined(TCPIP_TYPE_SOCKETSHR) && defined(__VMS_VER) && (__VMS_VER > 70000000)
530 #          include <sys/ioctl.h>
531 #        endif
532 #      endif
533 #    endif
534 
535 #    ifdef VMS
536 #      include <unixio.h>
537 #      if defined(TCPIP_TYPE_SOCKETSHR)
538 #        include <socketshr.h>
539 #      endif
540 #    endif
541 
542 #    define SSLeay_Read(a,b,c)     read((a),(b),(c))
543 #    define SSLeay_Write(a,b,c)    write((a),(b),(c))
544 #    define SHUTDOWN(fd)    { shutdown((fd),0); closesocket((fd)); }
545 #    define SHUTDOWN2(fd)   { shutdown((fd),2); closesocket((fd)); }
546 #    ifndef INVALID_SOCKET
547 #    define INVALID_SOCKET	(-1)
548 #    endif /* INVALID_SOCKET */
549 #  endif
550 #endif
551 
552 #if defined(__ultrix)
553 #  ifndef ssize_t
554 #    define ssize_t int
555 #  endif
556 #endif
557 
558 #if defined(sun) && !defined(__svr4__) && !defined(__SVR4)
559   /* include headers first, so our defines don't break it */
560 #include <stdlib.h>
561 #include <string.h>
562   /* bcopy can handle overlapping moves according to SunOS 4.1.4 manpage */
563 # define memmove(s1,s2,n) bcopy((s2),(s1),(n))
564 # define strtoul(s,e,b) ((unsigned long int)strtol((s),(e),(b)))
565 extern char *sys_errlist[]; extern int sys_nerr;
566 # define strerror(errnum) \
567 	(((errnum)<0 || (errnum)>=sys_nerr) ? NULL : sys_errlist[errnum])
568   /* Being signed SunOS 4.x memcpy breaks ASN1_OBJECT table lookup */
569 #include "crypto/o_str.h"
570 # define memcmp OPENSSL_memcmp
571 #endif
572 
573 #ifndef OPENSSL_EXIT
574 # if defined(MONOLITH) && !defined(OPENSSL_C)
575 #  define OPENSSL_EXIT(n) return(n)
576 # else
577 #  define OPENSSL_EXIT(n) do { EXIT(n); return(n); } while(0)
578 # endif
579 #endif
580 
581 /***********************************************/
582 
583 /* do we need to do this for getenv.
584  * Just define getenv for use under windows */
585 
586 #ifdef WIN16
587 /* How to do this needs to be thought out a bit more.... */
588 /*char *GETENV(char *);
589 #define Getenv	GETENV*/
590 #define Getenv	getenv
591 #else
592 #define Getenv getenv
593 #endif
594 
595 #define DG_GCC_BUG	/* gcc < 2.6.3 on DGUX */
596 
597 #ifdef sgi
598 #define IRIX_CC_BUG	/* all version of IRIX I've tested (4.* 5.*) */
599 #endif
600 #ifdef OPENSSL_SYS_SNI
601 #define IRIX_CC_BUG	/* CDS++ up to V2.0Bsomething suffered from the same bug.*/
602 #endif
603 
604 #if defined(OPENSSL_SYS_WINDOWS)
605 #  define strcasecmp _stricmp
606 #  define strncasecmp _strnicmp
607 #elif defined(OPENSSL_SYS_VMS)
608 /* VMS below version 7.0 doesn't have strcasecmp() */
609 #  include "o_str.h"
610 #  define strcasecmp OPENSSL_strcasecmp
611 #  define strncasecmp OPENSSL_strncasecmp
612 #  define OPENSSL_IMPLEMENTS_strncasecmp
613 #elif defined(OPENSSL_SYS_OS2) && defined(__EMX__)
614 #  define strcasecmp stricmp
615 #  define strncasecmp strnicmp
616 #elif defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
617 #  define strcasecmp stricmp
618 #  define strncasecmp strnicmp
619 #else
620 #  ifdef NO_STRINGS_H
621     int	strcasecmp();
622     int	strncasecmp();
623 #  else
624 #    include <strings.h>
625 #  endif /* NO_STRINGS_H */
626 #endif
627 
628 #if defined(OPENSSL_SYS_OS2) && defined(__EMX__)
629 # include <io.h>
630 # include <fcntl.h>
631 # define NO_SYSLOG
632 #endif
633 
634 /* vxworks */
635 #if defined(OPENSSL_SYS_VXWORKS)
636 #include <ioLib.h>
637 #include <tickLib.h>
638 #include <sysLib.h>
639 
640 #define TTY_STRUCT int
641 
642 #define sleep(a) taskDelay((a) * sysClkRateGet())
643 
644 #include <vxWorks.h>
645 #include <sockLib.h>
646 #include <taskLib.h>
647 
648 #define getpid taskIdSelf
649 
650 /* NOTE: these are implemented by helpers in database app!
651  * if the database is not linked, we need to implement them
652  * elswhere */
653 struct hostent *gethostbyname(const char *name);
654 struct hostent *gethostbyaddr(const char *addr, int length, int type);
655 struct servent *getservbyname(const char *name, const char *proto);
656 
657 #endif
658 /* end vxworks */
659 
660 #ifdef  __cplusplus
661 }
662 #endif
663 
664 #endif
665 
666