X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/86c9e193c88d0143207ca458b9a3f78f23a0d6b9..e8e24c8054719b9f31c7dc7b7b43342adc07a50c:/defines.h diff --git a/defines.h b/defines.h index ab60e5b7..2412fdfd 100644 --- a/defines.h +++ b/defines.h @@ -1,59 +1,36 @@ +/* + * 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 /* $Id$ */ -/* Some platforms need this for the _r() functions */ -#if !defined(_REENTRANT) && !defined(SNI) -# define _REENTRANT 1 -#endif - -/* Necessary headers */ - -#include /* For [u]intxx_t */ -#include /* For SHUT_XXXX */ -#include /* For MAXPATHLEN and roundup() */ -#include /* For typedefs */ -#include /* For IPv6 macros */ -#include /* For IPTOS macros */ -#ifdef HAVE_SYS_UN_H -# include /* For SUN_LEN */ -#endif -#ifdef HAVE_SYS_BITYPES_H -# include /* For u_intXX_t */ -#endif -#ifdef HAVE_PATHS_H -# include /* For _PATH_XXX */ -#endif -#ifdef HAVE_LIMITS_H -# include /* For PATH_MAX */ -#endif -#ifdef HAVE_SYS_TIME_H -# include /* For timersub */ -#endif -#ifdef HAVE_MAILLOCK_H -# include /* For _PATH_MAILDIR */ -#endif -#ifdef HAVE_SYS_CDEFS_H -# include /* For __P() */ -#endif -#ifdef HAVE_SYS_SYSMACROS_H -# include /* For MIN, MAX, etc */ -#endif -#ifdef HAVE_SYS_STAT_H -# include /* For S_* constants and macros */ -#endif -#ifdef HAVE_NEXT -# include -#endif - -#include /* For STDIN_FILENO, etc */ -#include /* Struct winsize */ -#include /* For O_NONBLOCK */ /* Constants */ -#ifndef SHUT_RDWR +#if defined(HAVE_DECL_SHUT_RD) && HAVE_DECL_SHUT_RD == 0 enum { SHUT_RD = 0, /* No more receptions. */ @@ -77,10 +54,24 @@ enum # ifdef PATH_MAX # define MAXPATHLEN PATH_MAX # else /* PATH_MAX */ -# define MAXPATHLEN 64 /* Should be safe */ +# define MAXPATHLEN 64 +/* realpath uses a fixed buffer of size MAXPATHLEN, so force use of ours */ +# ifndef BROKEN_REALPATH +# define BROKEN_REALPATH 1 +# endif /* BROKEN_REALPATH */ # endif /* PATH_MAX */ #endif /* MAXPATHLEN */ +#ifndef PATH_MAX +# ifdef _POSIX_PATH_MAX +# define PATH_MAX _POSIX_PATH_MAX +# endif +#endif + +#if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0 +# define MAXSYMLINKS 5 +#endif + #ifndef STDIN_FILENO # define STDIN_FILENO 0 #endif @@ -92,18 +83,22 @@ enum #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 +#if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0 +# define O_NONBLOCK 00004 /* Non Blocking Open */ #endif #ifndef S_ISDIR # define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR)) #endif /* S_ISDIR */ -#ifndef S_ISREG +#ifndef S_ISREG # define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG)) #endif /* S_ISREG */ @@ -127,12 +122,32 @@ enum # 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 + /* 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 @@ -146,20 +161,24 @@ typedef char int8_t; # if (SIZEOF_SHORT_INT == 2) typedef short int int16_t; # else -# ifdef _CRAY +# 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 /* _CRAY */ +# endif /* _UNICOS */ # endif # if (SIZEOF_INT == 4) typedef int int32_t; # else -# ifdef _CRAY +# ifdef _UNICOS typedef long int32_t; # else # error "32 bit int type not found." -# endif /* _CRAY */ +# endif /* _UNICOS */ # endif #endif @@ -179,8 +198,12 @@ typedef unsigned char u_int8_t; # if (SIZEOF_SHORT_INT == 2) typedef unsigned short int u_int16_t; # else -# ifdef _CRAY +# 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 @@ -188,48 +211,49 @@ typedef unsigned long u_int16_t; # if (SIZEOF_INT == 4) typedef unsigned int u_int32_t; # else -# ifdef _CRAY +# 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; -# define HAVE_INT64_T 1 # else # if (SIZEOF_LONG_LONG_INT == 8) typedef long long int int64_t; -# define HAVE_INT64_T 1 -# define HAVE_LONG_LONG_INT # endif # endif #endif #ifndef HAVE_U_INT64_T # if (SIZEOF_LONG_INT == 8) typedef unsigned long int u_int64_t; -# define HAVE_U_INT64_T 1 # else # if (SIZEOF_LONG_LONG_INT == 8) typedef unsigned long long int u_int64_t; -# define HAVE_U_INT64_T 1 # endif # endif #endif -#ifndef HAVE_SOCKLEN_T -typedef unsigned int socklen_t; -# define HAVE_SOCKLEN_T -#endif /* HAVE_SOCKLEN_T */ +#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 @@ -252,6 +276,11 @@ 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 @@ -268,6 +297,13 @@ struct sockaddr_un { }; #endif /* HAVE_SYS_UN_H */ +#ifndef HAVE_IN_ADDR_T +typedef u_int32_t in_addr_t; +#endif +#ifndef HAVE_IN_PORT_T +typedef u_int16_t in_port_t; +#endif + #if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE) #define _STRUCT_WINSIZE struct winsize { @@ -278,17 +314,16 @@ struct winsize { }; #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 @@ -301,6 +336,10 @@ struct winsize { # 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 @@ -317,23 +356,25 @@ struct winsize { # define _PATH_MAILDIR MAILDIR #endif /* !defined(_PATH_MAILDIR) && defined(MAILDIR) */ -#ifndef _PATH_RSH -# ifdef RSH_PATH -# define _PATH_RSH RSH_PATH -# else /* RSH_PATH */ -# define _PATH_RSH "/usr/bin/rsh" -# endif /* RSH_PATH */ -#endif /* _PATH_RSH */ - #ifndef _PATH_NOLOGIN # define _PATH_NOLOGIN "/etc/nologin" #endif /* Define this to be the path of the xauth program. */ -#ifndef XAUTH_PATH -#define XAUTH_PATH "/usr/X11R6/bin/xauth" +#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 @@ -365,6 +406,20 @@ struct winsize { } 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 @@ -379,24 +434,95 @@ struct winsize { # define __attribute__(x) #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ -#ifndef SUN_LEN -#define SUN_LEN(su) \ - (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path)) -#endif /* SUN_LEN */ +#if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__) +# define __sentinel__ +#endif + +#if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__) +# define __bounded__(x, y, z) +#endif + +#if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__) +# define __nonnull__(x) +#endif + +/* *-*-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 */ + +#if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0 +# define offsetof(type, member) ((size_t) &((type *)0)->member) +#endif + +/* Set up BSD-style BYTE_ORDER definition if it isn't there already */ +/* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */ +#ifndef BYTE_ORDER +# ifndef LITTLE_ENDIAN +# define LITTLE_ENDIAN 1234 +# endif /* LITTLE_ENDIAN */ +# ifndef BIG_ENDIAN +# define BIG_ENDIAN 4321 +# endif /* BIG_ENDIAN */ +# ifdef WORDS_BIGENDIAN +# define BYTE_ORDER BIG_ENDIAN +# else /* WORDS_BIGENDIAN */ +# define BYTE_ORDER LITTLE_ENDIAN +# endif /* WORDS_BIGENDIAN */ +#endif /* BYTE_ORDER */ /* Function replacement / compatibility hacks */ -/* 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)) +#if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO)) +# define HAVE_GETADDRINFO #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) +#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 #if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO) @@ -409,31 +535,96 @@ struct winsize { # undef HAVE_GAI_STRERROR #endif +#if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX) +# undef HAVE_UPDWTMPX +#endif + +#if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE) +# undef HAS_SHADOW_EXPIRE +#endif + +#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \ + defined(SYSLOG_R_SAFE_IN_SIGHAND) +# define DO_LOG_SAFE_IN_SIGHAND +#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_ATEXIT) && defined(HAVE_ON_EXIT) -# define atexit(a) on_exit(a) -#else -# if defined(HAVE_XATEXIT) -# define atexit(a) xatexit(a) -# endif /* defined(HAVE_XATEXIT) */ -#endif /* !defined(HAVE_ATEXIT) && defined(HAVE_ON_EXIT) */ - #if defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) # define USE_VHANGUP #endif /* defined(HAVE_VHANGUP) && !defined(HAVE_DEV_PTMX) */ #ifndef GETPGRP_VOID +# include # define getpgrp() getpgrp(0) #endif +#ifdef USE_BSM_AUDIT +# define SSH_AUDIT_EVENTS +# define CUSTOM_SSH_AUDIT_EVENTS +#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 + +#ifdef FSID_HAS_VAL +/* encode f_fsid into a 64 bit value */ +#define FSID_TO_ULONG(f) \ + ((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \ + ((f).val[1] & 0xffffffffUL)) +#elif defined(FSID_HAS___VAL) +#define FSID_TO_ULONG(f) \ + ((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \ + ((f).__val[1] & 0xffffffffUL)) +#else +# define FSID_TO_ULONG(f) ((f)) +#endif + +#if defined(__Lynx__) + /* + * LynxOS defines these in param.h which we do not want to include since + * it will also pull in a bunch of kernel definitions. + */ +# define ALIGNBYTES (sizeof(int) - 1) +# define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES) + /* Missing prototypes on LynxOS */ + int snprintf (char *, size_t, const char *, ...); + int mkstemp (char *); + char *crypt (const char *, const char *); + int seteuid (uid_t); + int setegid (gid_t); + char *mkdtemp (char *); + int rresvport_af (int *, sa_family_t); + int innetgr (const char *, const char *, const char *, const char *); +#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.in sets this for a few OS's which are known to have problems + * 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 */ @@ -442,27 +633,6 @@ struct winsize { ** login recorder definitions **/ -/* preprocess */ - -#ifdef HAVE_UTMP_H -# ifdef HAVE_TIME_IN_UTMP -# include -# endif -# include -#endif -#ifdef HAVE_UTMPX_H -# ifdef HAVE_TV_IN_UTMPX -# include -# endif -# include -#endif -#ifdef HAVE_LASTLOG_H -# include -#endif -#ifdef HAVE_PATHS_H -# include -#endif - /* FIXME: put default paths back in */ #ifndef UTMP_FILE # ifdef _PATH_UTMP @@ -493,6 +663,9 @@ struct winsize { # 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) @@ -516,16 +689,68 @@ struct winsize { #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 -/* which type of time to use? (api.c) */ -#ifdef HAVE_SYS_TIME_H -# define USE_TIMEVAL +#ifdef HAVE_OSF_SIA +# ifdef USE_SHADOW +# undef USE_SHADOW +# endif +# define CUSTOM_SYS_AUTH_PASSWD 1 +#endif + +#if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE) +# define CUSTOM_SYS_AUTH_PASSWD 1 +#endif +#if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF) +# define USE_LIBIAF +#endif + +/* HP-UX 11.11 */ +#ifdef BTMP_FILE +# define _PATH_BTMP BTMP_FILE +#endif + +#if defined(USE_BTMP) && defined(_PATH_BTMP) +# define CUSTOM_FAILED_LOGIN #endif /** end of login recorder definitions */ +#ifdef BROKEN_GETGROUPS +# define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b))) +#endif + +#if defined(HAVE_MMAP) && defined(BROKEN_MMAP) +# undef HAVE_MMAP +#endif + +#ifndef IOV_MAX +# if defined(_XOPEN_IOV_MAX) +# define IOV_MAX _XOPEN_IOV_MAX +# elif defined(DEF_IOV_MAX) +# define IOV_MAX DEF_IOV_MAX +# else +# define IOV_MAX 16 +# endif +#endif + +#ifndef EWOULDBLOCK +# define EWOULDBLOCK EAGAIN +#endif + +#ifndef INET6_ADDRSTRLEN /* for non IPv6 machines */ +#define INET6_ADDRSTRLEN 46 +#endif + +#ifndef SSH_IOBUFSZ +# define SSH_IOBUFSZ 8192 +#endif + #endif /* _DEFINES_H */