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i bet a lot of people didn't know what ssh 1.2.16 had a nice license.
well, except for the patent issues.  someone in sweden (forget their
name at the moment) cleaned out most of the patented code, and now
this code removes rsa code.  when this is done, it will link against
libssl, but the work isn't completely done yet.  then we need to bring
this up to modern days, featurewise.

/*

includes.h

Author: Tatu Ylonen <ylo@cs.hut.fi>

Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                   All rights reserved

Created: Thu Mar 23 16:29:37 1995 ylo

This file includes most of the needed system headers.

*/

/* RCSID("$Id: includes.h,v 1.1 1999/09/26 20:53:36 deraadt Exp $"); */

#ifndef INCLUDES_H
#define INCLUDES_H

/* Note: autoconf documentation tells to use the <...> syntax and have -I. */
#include <config.h>

#include "version.h"

typedef unsigned short word16;

#if SIZEOF_LONG == 4
typedef unsigned long word32;
#else
#if SIZEOF_INT == 4
typedef unsigned int word32;
#else
#if SIZEOF_SHORT >= 4
typedef unsigned short word32;
#else
YOU_LOSE
#endif
#endif
#endif

#ifdef SCO
/* this is defined so that winsize gets ifdef'd in termio.h */
#define _IBCS2
#endif

#if defined(__mips)
/* Mach3 on MIPS defines conflicting garbage. */
#define uint32 hidden_uint32
#endif /* __mips */
#include <sys/types.h>
#if defined(__mips)
#undef uint32
#endif /* __mips */

#if defined(bsd_44) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__PARAGON__)
#include <sys/param.h>
#include <machine/endian.h>
#endif
#if defined(linux)
#include <endian.h>
#endif

#include <stdio.h>
#include <ctype.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <assert.h>
#include <signal.h>

#ifdef sparc
#undef HAVE_SYS_IOCTL_H
#endif

#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif /* HAVE_SYS_IOCTL_H */

#ifdef HAVE_TERMIOS_H
#include <termios.h>
#define USING_TERMIOS
#endif /* HAVE_TERMIOS_H */

#if defined(HAVE_SGTTY_H) && !defined(USING_TERMIOS)
#include <sgtty.h>
#define USING_SGTTY
#endif

#if !defined(USING_SGTTY) && !defined(USING_TERMIOS)
  ERROR_NO_TERMIOS_OR_SGTTY
#endif

#ifdef STDC_HEADERS
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#else /* STDC_HEADERS */
/* stdarg.h is present almost everywhere, and comes with gcc; I am too lazy
   to make things work with both it and varargs. */
#include <stdarg.h>
#ifndef HAVE_STRCHR
#define strchr index
#define strrchr rindex
#endif
char *strchr(), *strrchr();
#ifndef HAVE_MEMCPY
#define memcpy(d, s, n) bcopy((s), (d), (n))
#define memmove(d, s, n) bcopy((s), (d), (n))
#define memset(d, ch, n) bzero((d), (n)) /* We only memset to 0. */
#define memcmp(a, b, n) bcmp((a), (b), (n))
#endif
#endif /* STDC_HEADERS */

#include <sys/socket.h>
#include <netinet/in.h>
#ifdef HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#else /* Some old linux systems at least have in_system.h instead. */
#include <netinet/in_system.h>
#endif /* HAVE_NETINET_IN_SYSTM_H */
#ifdef SCO
/* SCO does not have a un.h and there is no appropriate substitute. */
/* Latest news: it doesn't have AF_UNIX at all, but this allows
   it to compile, and outgoing forwarded connections appear to work. */
struct	sockaddr_un {
	short	sun_family;		/* AF_UNIX */
	char	sun_path[108];		/* path name (gag) */
};
/* SCO needs sys/stream.h and sys/ptem.h */
#include <sys/stream.h>
#include <sys/ptem.h>
#else /* SCO */
#include <sys/un.h>
#endif /* SCO */
#if !defined(__PARAGON__)
#include <netinet/ip.h>
#endif /* !__PARAGON__ */
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <netdb.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H */

#include <pwd.h>
#include <grp.h>
#ifdef HAVE_GETSPNAM
#include <shadow.h>
#endif /* HAVE_GETSPNAM */

#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#else /* HAVE_SYS_WAIT_H */
#if !defined(WNOHANG) /* && (defined(bsd43) || defined(vax)) */
#define WNOHANG 1
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(X) ((unsigned)(X) >> 8)
#endif
#ifndef WIFEXITED
#define WIFEXITED(X) (((X) & 255) == 0)
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(X) ((((X) & 255) != 0x255 && ((X) & 255) != 0))
#endif
#ifndef WTERMSIG
#define WTERMSIG(X) ((X) & 255)
#endif
#endif /* HAVE_SYS_WAIT_H */

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */

#ifdef TIME_WITH_SYS_TIME
#ifndef SCO
/* I excluded <sys/time.h> to avoid redefinition of timeval 
   which SCO puts in both <sys/select.h> and <sys/time.h> */
#include <sys/time.h>
#endif /* SCO */
#include <time.h>
#else /* TIME_WITH_SYS_TIME */
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else /* HAVE_SYS_TIME_H */
#include <time.h>
#endif /* HAVE_SYS_TIME_H */
#endif /* TIME_WITH_SYS_TIME */

#ifdef HAVE_PATHS_H
#include <paths.h>
#endif

#if HAVE_DIRENT_H
#include <dirent.h>
#define NAMLEN(dirent) strlen((dirent)->d_name)
#else
#define dirent direct
#define NAMLEN(dirent) (dirent)->d_namlen
#if HAVE_SYS_NDIR_H
#include <sys/ndir.h>
#endif
#if HAVE_SYS_DIR_H
#include <sys/dir.h>
#endif
#if HAVE_NDIR_H
#include <ndir.h>
#endif
#endif

#ifdef HAVE_SETRLIMIT
#include <sys/resource.h>
#endif

#ifndef HAVE_VSNPRINTF
#define vsnprintf(buf, len, fmt, args) vsprintf(buf, fmt, args)
#endif

/* These POSIX macros are not defined in every system. */

#ifndef S_IRWXU
#define S_IRWXU 00700		/* read, write, execute: owner */
#define S_IRUSR 00400		/* read permission: owner */
#define S_IWUSR 00200		/* write permission: owner */
#define S_IXUSR 00100		/* execute permission: owner */
#define S_IRWXG 00070		/* read, write, execute: group */
#define S_IRGRP 00040		/* read permission: group */
#define S_IWGRP 00020		/* write permission: group */
#define S_IXGRP 00010		/* execute permission: group */
#define S_IRWXO 00007		/* read, write, execute: other */
#define S_IROTH 00004		/* read permission: other */
#define S_IWOTH 00002		/* write permission: other */
#define S_IXOTH 00001		/* execute permission: other */
#endif /* S_IRWXU */

#ifndef S_ISUID
#define S_ISUID 0x800
#endif /* S_ISUID */
#ifndef S_ISGID
#define S_ISGID 0x400
#endif /* S_ISGID */

#ifndef S_ISDIR
/* NextStep apparently fails to define this. */
#define S_ISDIR(mode)   (((mode)&(_S_IFMT))==(_S_IFDIR))
#endif

#ifdef STAT_MACROS_BROKEN
/* Some systems have broken S_ISDIR etc. macros in sys/stat.h.  Please ask
   your vendor to fix them.  You can then remove the line below, but only
   after you have sent a complaint to your vendor. */
WARNING_MACROS_IN_SYS_STAT_H_ARE_BROKEN_ON_YOUR_SYSTEM_READ_INCLUDES_H
#endif /* STAT_MACROS_BROKEN */

#if USE_STRLEN_FOR_AF_UNIX
#define AF_UNIX_SIZE(unaddr) \
  (sizeof((unaddr).sun_family) + strlen((unaddr).sun_path) + 1)
#else
#define AF_UNIX_SIZE(unaddr) sizeof(unaddr)
#endif

#endif /* INCLUDES_H */