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openssh-portable
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openssh-portable/defines.h

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/*
* Copyright (c) 1999-2003 Damien Miller. All rights reserved.
*
* 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 above 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#ifndef _DEFINES_H
#define _DEFINES_H
/* $Id: defines.h,v 1.116 2004/06/15 00:34:08 djm Exp $ */
/* Constants */
#ifndef SHUT_RDWR
enum
{
SHUT_RD = 0, /* No more receptions. */
SHUT_WR, /* No more transmissions. */
SHUT_RDWR /* No more receptions or transmissions. */
};
# define SHUT_RD SHUT_RD
# define SHUT_WR SHUT_WR
# define SHUT_RDWR SHUT_RDWR
#endif
#ifndef IPTOS_LOWDELAY
# define IPTOS_LOWDELAY 0x10
# define IPTOS_THROUGHPUT 0x08
# define IPTOS_RELIABILITY 0x04
# define IPTOS_LOWCOST 0x02
# define IPTOS_MINCOST IPTOS_LOWCOST
#endif /* IPTOS_LOWDELAY */
#ifndef MAXPATHLEN
# ifdef PATH_MAX
# define MAXPATHLEN PATH_MAX
# else /* PATH_MAX */
# define MAXPATHLEN 64 /* Should be safe */
# endif /* PATH_MAX */
#endif /* MAXPATHLEN */
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif
#ifndef NGROUPS_MAX /* Disable groupaccess if NGROUP_MAX is not set */
#ifdef NGROUPS
#define NGROUPS_MAX NGROUPS
#else
#define NGROUPS_MAX 0
#endif
#endif
#ifndef O_NONBLOCK /* Non Blocking Open */
# define O_NONBLOCK 00004
#endif
#ifndef S_ISDIR
# define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR))
#endif /* S_ISDIR */
#ifndef S_ISREG
# define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG))
#endif /* S_ISREG */
#ifndef S_ISLNK
# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
#endif /* S_ISLNK */
#ifndef S_IXUSR
# define S_IXUSR 0000100 /* execute/search permission, */
# define S_IXGRP 0000010 /* execute/search permission, */
# define S_IXOTH 0000001 /* execute/search permission, */
# define _S_IWUSR 0000200 /* write permission, */
# define S_IWUSR _S_IWUSR /* write permission, owner */
# define S_IWGRP 0000020 /* write permission, group */
# define S_IWOTH 0000002 /* write permission, other */
# define S_IRUSR 0000400 /* read permission, owner */
# define S_IRGRP 0000040 /* read permission, group */
# define S_IROTH 0000004 /* read permission, other */
# define S_IRWXU 0000700 /* read, write, execute */
# define S_IRWXG 0000070 /* read, write, execute */
# define S_IRWXO 0000007 /* read, write, execute */
#endif /* S_IXUSR */
#if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
#define MAP_ANON MAP_ANONYMOUS
#endif
#ifndef MAP_FAILED
# define MAP_FAILED ((void *)-1)
#endif
/* *-*-nto-qnx doesn't define this constant in the system headers */
#ifdef MISSING_NFDBITS
# define NFDBITS (8 * sizeof(unsigned long))
#endif
/*
SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but
including rpc/rpc.h breaks Solaris 6
*/
#ifndef INADDR_LOOPBACK
#define INADDR_LOOPBACK ((u_long)0x7f000001)
#endif
#ifndef __unused
#define __unused
#endif
/* Types */
/* If sys/types.h does not supply intXX_t, supply them ourselves */
/* (or die trying) */
#ifndef HAVE_U_INT
typedef unsigned int u_int;
#endif
#ifndef HAVE_INTXX_T
# if (SIZEOF_CHAR == 1)
typedef char int8_t;
# else
# error "8 bit int type not found."
# endif
# if (SIZEOF_SHORT_INT == 2)
typedef short int int16_t;
# else
# ifdef _UNICOS
# if (SIZEOF_SHORT_INT == 4)
typedef short int16_t;
# else
typedef long int16_t;
# endif
# else
# error "16 bit int type not found."
# endif /* _UNICOS */
# endif
# if (SIZEOF_INT == 4)
typedef int int32_t;
# else
# ifdef _UNICOS
typedef long int32_t;
# else
# error "32 bit int type not found."
# endif /* _UNICOS */
# endif
#endif
/* If sys/types.h does not supply u_intXX_t, supply them ourselves */
#ifndef HAVE_U_INTXX_T
# ifdef HAVE_UINTXX_T
typedef uint8_t u_int8_t;
typedef uint16_t u_int16_t;
typedef uint32_t u_int32_t;
# define HAVE_U_INTXX_T 1
# else
# if (SIZEOF_CHAR == 1)
typedef unsigned char u_int8_t;
# else
# error "8 bit int type not found."
# endif
# if (SIZEOF_SHORT_INT == 2)
typedef unsigned short int u_int16_t;
# else
# ifdef _UNICOS
# if (SIZEOF_SHORT_INT == 4)
typedef unsigned short u_int16_t;
# else
typedef unsigned long u_int16_t;
# endif
# else
# error "16 bit int type not found."
# endif
# endif
# if (SIZEOF_INT == 4)
typedef unsigned int u_int32_t;
# else
# ifdef _UNICOS
typedef unsigned long u_int32_t;
# else
# error "32 bit int type not found."
# endif
# endif
# endif
#define __BIT_TYPES_DEFINED__
#endif
/* 64-bit types */
#ifndef HAVE_INT64_T
# if (SIZEOF_LONG_INT == 8)
typedef long int int64_t;
# else
# if (SIZEOF_LONG_LONG_INT == 8)
typedef long long int int64_t;
# endif
# endif
#endif
#ifndef HAVE_U_INT64_T
# if (SIZEOF_LONG_INT == 8)
typedef unsigned long int u_int64_t;
# else
# if (SIZEOF_LONG_LONG_INT == 8)
typedef unsigned long long int u_int64_t;
# endif
# endif
#endif
#ifndef HAVE_U_CHAR
typedef unsigned char u_char;
# define HAVE_U_CHAR
#endif /* HAVE_U_CHAR */
#ifndef SIZE_T_MAX
#define SIZE_T_MAX ULONG_MAX
#endif /* SIZE_T_MAX */
#ifndef HAVE_SIZE_T
typedef unsigned int size_t;
# define HAVE_SIZE_T
# define SIZE_T_MAX UINT_MAX
#endif /* HAVE_SIZE_T */
#ifndef HAVE_SSIZE_T
typedef int ssize_t;
# define HAVE_SSIZE_T
#endif /* HAVE_SSIZE_T */
#ifndef HAVE_CLOCK_T
typedef long clock_t;
# define HAVE_CLOCK_T
#endif /* HAVE_CLOCK_T */
#ifndef HAVE_SA_FAMILY_T
typedef int sa_family_t;
# define HAVE_SA_FAMILY_T
#endif /* HAVE_SA_FAMILY_T */
#ifndef HAVE_PID_T
typedef int pid_t;
# define HAVE_PID_T
#endif /* HAVE_PID_T */
#ifndef HAVE_SIG_ATOMIC_T
typedef int sig_atomic_t;
# define HAVE_SIG_ATOMIC_T
#endif /* HAVE_SIG_ATOMIC_T */
#ifndef HAVE_MODE_T
typedef int mode_t;
# define HAVE_MODE_T
#endif /* HAVE_MODE_T */
#if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS)
# define ss_family __ss_family
#endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */
#ifndef HAVE_SYS_UN_H
struct sockaddr_un {
short sun_family; /* AF_UNIX */
char sun_path[108]; /* path name (gag) */
};
#endif /* HAVE_SYS_UN_H */
#if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE)
#define _STRUCT_WINSIZE
struct winsize {
unsigned short ws_row; /* rows, in characters */
unsigned short ws_col; /* columns, in character */
unsigned short ws_xpixel; /* horizontal size, pixels */
unsigned short ws_ypixel; /* vertical size, pixels */
};
#endif
/* *-*-nto-qnx does not define this type in the system headers */
#ifdef MISSING_FD_MASK
typedef unsigned long int fd_mask;
#endif
/* Paths */
#ifndef _PATH_BSHELL
# define _PATH_BSHELL "/bin/sh"
#endif
#ifndef _PATH_CSHELL
# define _PATH_CSHELL "/bin/csh"
#endif
#ifndef _PATH_SHELLS
# define _PATH_SHELLS "/etc/shells"
#endif
#ifdef USER_PATH
# ifdef _PATH_STDPATH
# undef _PATH_STDPATH
# endif
# define _PATH_STDPATH USER_PATH
#endif
#ifndef _PATH_STDPATH
# define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
#endif
#ifndef SUPERUSER_PATH
# define SUPERUSER_PATH _PATH_STDPATH
#endif
#ifndef _PATH_DEVNULL
# define _PATH_DEVNULL "/dev/null"
#endif
#ifndef MAIL_DIRECTORY
# define MAIL_DIRECTORY "/var/spool/mail"
#endif
#ifndef MAILDIR
# define MAILDIR MAIL_DIRECTORY
#endif
#if !defined(_PATH_MAILDIR) && defined(MAILDIR)
# define _PATH_MAILDIR MAILDIR
#endif /* !defined(_PATH_MAILDIR) && defined(MAILDIR) */
#ifndef _PATH_NOLOGIN
# define _PATH_NOLOGIN "/etc/nologin"
#endif
/* Define this to be the path of the xauth program. */
#ifdef XAUTH_PATH
#define _PATH_XAUTH XAUTH_PATH
#endif /* XAUTH_PATH */
/* derived from XF4/xc/lib/dps/Xlibnet.h */
#ifndef X_UNIX_PATH
# ifdef __hpux
# define X_UNIX_PATH "/var/spool/sockets/X11/%u"
# else
# define X_UNIX_PATH "/tmp/.X11-unix/X%u"
# endif
#endif /* X_UNIX_PATH */
#define _PATH_UNIX_X X_UNIX_PATH
#ifndef _PATH_TTY
# define _PATH_TTY "/dev/tty"
#endif
/* Macros */
#if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H)
# define HAVE_LOGIN_CAP
#endif
#ifndef MAX
# define MAX(a,b) (((a)>(b))?(a):(b))
# define MIN(a,b) (((a)<(b))?(a):(b))
#endif
#ifndef roundup
# define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#endif
#ifndef timersub
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif
#ifndef TIMEVAL_TO_TIMESPEC
#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
(ts)->tv_sec = (tv)->tv_sec; \
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
}
#endif
#ifndef TIMESPEC_TO_TIMEVAL
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
(tv)->tv_sec = (ts)->tv_sec; \
(tv)->tv_usec = (ts)->tv_nsec / 1000; \
}
#endif
#ifndef __P
# define __P(x) x
#endif
#if !defined(IN6_IS_ADDR_V4MAPPED)
# define IN6_IS_ADDR_V4MAPPED(a) \
((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \
(((u_int32_t *) (a))[2] == htonl (0xffff)))
#endif /* !defined(IN6_IS_ADDR_V4MAPPED) */
#if !defined(__GNUC__) || (__GNUC__ < 2)
# define __attribute__(x)
#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
/* *-*-nto-qnx doesn't define this macro in the system headers */
#ifdef MISSING_HOWMANY
# define howmany(x,y) (((x)+((y)-1))/(y))
#endif
#ifndef OSSH_ALIGNBYTES
#define OSSH_ALIGNBYTES (sizeof(int) - 1)
#endif
#ifndef __CMSG_ALIGN
#define __CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES)
#endif
/* Length of the contents of a control message of length len */
#ifndef CMSG_LEN
#define CMSG_LEN(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
#endif
/* Length of the space taken up by a padded control message of length len */
#ifndef CMSG_SPACE
#define CMSG_SPACE(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len))
#endif
/* given pointer to struct cmsghdr, return pointer to data */
#ifndef CMSG_DATA
#define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr)))
#endif /* CMSG_DATA */
/*
* RFC 2292 requires to check msg_controllen, in case that the kernel returns
* an empty list for some reasons.
*/
#ifndef CMSG_FIRSTHDR
#define CMSG_FIRSTHDR(mhdr) \
((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
(struct cmsghdr *)(mhdr)->msg_control : \
(struct cmsghdr *)NULL)
#endif /* CMSG_FIRSTHDR */
#ifndef offsetof
# define offsetof(type, member) ((size_t) &((type *)0)->member)
#endif
/* Function replacement / compatibility hacks */
#if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO))
# define HAVE_GETADDRINFO
#endif
#ifndef HAVE_GETOPT_OPTRESET
# undef getopt
# undef opterr
# undef optind
# undef optopt
# undef optreset
# undef optarg
# define getopt(ac, av, o) BSDgetopt(ac, av, o)
# define opterr BSDopterr
# define optind BSDoptind
# define optopt BSDoptopt
# define optreset BSDoptreset
# define optarg BSDoptarg
#endif
/* In older versions of libpam, pam_strerror takes a single argument */
#ifdef HAVE_OLD_PAM
# define PAM_STRERROR(a,b) pam_strerror((b))
#else
# define PAM_STRERROR(a,b) pam_strerror((a),(b))
#endif
#ifdef PAM_SUN_CODEBASE
# define PAM_MSG_MEMBER(msg, n, member) ((*(msg))[(n)].member)
#else
# define PAM_MSG_MEMBER(msg, n, member) ((msg)[(n)]->member)
#endif
#if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO)
# undef HAVE_GETADDRINFO
#endif
#if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO)
# undef HAVE_FREEADDRINFO
#endif
#if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR)
# undef HAVE_GAI_STRERROR
#endif
#if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX)
# undef HAVE_UPDWTMPX
#endif
#if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY)
# define memmove(s1, s2, n) bcopy((s2), (s1), (n))
#endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */
#if defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX)
# define USE_VHANGUP
#endif /* defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) */
#ifndef GETPGRP_VOID
# define getpgrp() getpgrp(0)
#endif
/* OPENSSL_free() is Free() in versions before OpenSSL 0.9.6 */
#if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x0090600f)
# define OPENSSL_free(x) Free(x)
#endif
#if !defined(HAVE___func__) && defined(HAVE___FUNCTION__)
# define __func__ __FUNCTION__
#elif !defined(HAVE___func__)
# define __func__ ""
#endif
#if defined(KRB5) && !defined(HEIMDAL)
# define krb5_get_err_text(context,code) error_message(code)
#endif
#if defined(SKEYCHALLENGE_4ARG)
# define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c,d)
#else
# define _compat_skeychallenge(a,b,c,d) skeychallenge(a,b,c)
#endif
/* Maximum number of file descriptors available */
#ifdef HAVE_SYSCONF
# define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX)
#else
# define SSH_SYSFDMAX 10000
#endif
/*
* Define this to use pipes instead of socketpairs for communicating with the
* client program. Socketpairs do not seem to work on all systems.
*
* configure.ac sets this for a few OS's which are known to have problems
* but you may need to set it yourself
*/
/* #define USE_PIPES 1 */
/**
** login recorder definitions
**/
/* FIXME: put default paths back in */
#ifndef UTMP_FILE
# ifdef _PATH_UTMP
# define UTMP_FILE _PATH_UTMP
# else
# ifdef CONF_UTMP_FILE
# define UTMP_FILE CONF_UTMP_FILE
# endif
# endif
#endif
#ifndef WTMP_FILE
# ifdef _PATH_WTMP
# define WTMP_FILE _PATH_WTMP
# else
# ifdef CONF_WTMP_FILE
# define WTMP_FILE CONF_WTMP_FILE
# endif
# endif
#endif
/* pick up the user's location for lastlog if given */
#ifndef LASTLOG_FILE
# ifdef _PATH_LASTLOG
# define LASTLOG_FILE _PATH_LASTLOG
# else
# ifdef CONF_LASTLOG_FILE
# define LASTLOG_FILE CONF_LASTLOG_FILE
# endif
# endif
#endif
#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
# define USE_SHADOW
#endif
/* The login() library function in libutil is first choice */
#if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN)
# define USE_LOGIN
#else
/* Simply select your favourite login types. */
/* Can't do if-else because some systems use several... <sigh> */
# if defined(UTMPX_FILE) && !defined(DISABLE_UTMPX)
# define USE_UTMPX
# endif
# if defined(UTMP_FILE) && !defined(DISABLE_UTMP)
# define USE_UTMP
# endif
# if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX)
# define USE_WTMPX
# endif
# if defined(WTMP_FILE) && !defined(DISABLE_WTMP)
# define USE_WTMP
# endif
#endif
#ifndef UT_LINESIZE
# define UT_LINESIZE 8
#endif
/* I hope that the presence of LASTLOG_FILE is enough to detect this */
#if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG)
# define USE_LASTLOG
#endif
#ifdef HAVE_OSF_SIA
# ifdef USE_SHADOW
# undef USE_SHADOW
# endif
# define CUSTOM_SYS_AUTH_PASSWD 1
#endif
/** end of login recorder definitions */
#endif /* _DEFINES_H */
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