1/* 2 * Copyright (c) 1999-2003 Damien Miller. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#ifndef _DEFINES_H 26#define _DEFINES_H 27 28/* Constants */ 29 30#if defined(HAVE_DECL_SHUT_RD) && HAVE_DECL_SHUT_RD == 0 31enum 32{ 33 SHUT_RD = 0, /* No more receptions. */ 34 SHUT_WR, /* No more transmissions. */ 35 SHUT_RDWR /* No more receptions or transmissions. */ 36}; 37# define SHUT_RD SHUT_RD 38# define SHUT_WR SHUT_WR 39# define SHUT_RDWR SHUT_RDWR 40#endif 41 42/* 43 * Cygwin doesn't really have a notion of reserved ports. It is still 44 * is useful on the client side so for compatibility it defines as 1024 via 45 * netinet/in.h inside an enum. We * don't actually want that restriction 46 * so we want to set that to zero, but we can't do it direct in config.h 47 * because it'll cause a conflicting definition the first time we include 48 * netinet/in.h. 49 */ 50 51#ifdef HAVE_CYGWIN 52#define IPPORT_RESERVED 0 53#endif 54 55/* 56 * Definitions for IP type of service (ip_tos) 57 */ 58#include <netinet/in_systm.h> 59#include <netinet/ip.h> 60#ifndef IPTOS_LOWDELAY 61# define IPTOS_LOWDELAY 0x10 62# define IPTOS_THROUGHPUT 0x08 63# define IPTOS_RELIABILITY 0x04 64# define IPTOS_LOWCOST 0x02 65# define IPTOS_MINCOST IPTOS_LOWCOST 66#endif /* IPTOS_LOWDELAY */ 67 68/* 69 * Definitions for DiffServ Codepoints as per RFCs 2474, 3246, 4594 & 8622. 70 * These are the 6 most significant bits as they appear on the wire, so the 71 * two least significant bits must be zero. 72 */ 73#ifndef IPTOS_DSCP_AF11 74# define IPTOS_DSCP_AF11 0x28 75# define IPTOS_DSCP_AF12 0x30 76# define IPTOS_DSCP_AF13 0x38 77# define IPTOS_DSCP_AF21 0x48 78# define IPTOS_DSCP_AF22 0x50 79# define IPTOS_DSCP_AF23 0x58 80# define IPTOS_DSCP_AF31 0x68 81# define IPTOS_DSCP_AF32 0x70 82# define IPTOS_DSCP_AF33 0x78 83# define IPTOS_DSCP_AF41 0x88 84# define IPTOS_DSCP_AF42 0x90 85# define IPTOS_DSCP_AF43 0x98 86# define IPTOS_DSCP_EF 0xb8 87#endif /* IPTOS_DSCP_AF11 */ 88#ifndef IPTOS_DSCP_CS0 89# define IPTOS_DSCP_CS0 0x00 90# define IPTOS_DSCP_CS1 0x20 91# define IPTOS_DSCP_CS2 0x40 92# define IPTOS_DSCP_CS3 0x60 93# define IPTOS_DSCP_CS4 0x80 94# define IPTOS_DSCP_CS5 0xa0 95# define IPTOS_DSCP_CS6 0xc0 96# define IPTOS_DSCP_CS7 0xe0 97#endif /* IPTOS_DSCP_CS0 */ 98#ifndef IPTOS_DSCP_EF 99# define IPTOS_DSCP_EF 0xb8 100#endif /* IPTOS_DSCP_EF */ 101#ifndef IPTOS_DSCP_LE 102# define IPTOS_DSCP_LE 0x04 103#endif /* IPTOS_DSCP_LE */ 104#ifndef IPTOS_PREC_CRITIC_ECP 105# define IPTOS_PREC_CRITIC_ECP 0xa0 106#endif 107#ifndef IPTOS_PREC_INTERNETCONTROL 108# define IPTOS_PREC_INTERNETCONTROL 0xc0 109#endif 110#ifndef IPTOS_PREC_NETCONTROL 111# define IPTOS_PREC_NETCONTROL 0xe0 112#endif 113 114#ifndef PATH_MAX 115# ifdef _POSIX_PATH_MAX 116# define PATH_MAX _POSIX_PATH_MAX 117# endif 118#endif 119 120#ifndef MAXPATHLEN 121# ifdef PATH_MAX 122# define MAXPATHLEN PATH_MAX 123# else /* PATH_MAX */ 124# define MAXPATHLEN 64 125# endif /* PATH_MAX */ 126#endif /* MAXPATHLEN */ 127 128#ifndef HOST_NAME_MAX 129# include "netdb.h" /* for MAXHOSTNAMELEN */ 130# if defined(_POSIX_HOST_NAME_MAX) 131# define HOST_NAME_MAX _POSIX_HOST_NAME_MAX 132# elif defined(MAXHOSTNAMELEN) 133# define HOST_NAME_MAX MAXHOSTNAMELEN 134# else 135# define HOST_NAME_MAX 255 136# endif 137#endif /* HOST_NAME_MAX */ 138 139#if defined(HAVE_DECL_MAXSYMLINKS) && HAVE_DECL_MAXSYMLINKS == 0 140# define MAXSYMLINKS 5 141#endif 142 143#ifndef STDIN_FILENO 144# define STDIN_FILENO 0 145#endif 146#ifndef STDOUT_FILENO 147# define STDOUT_FILENO 1 148#endif 149#ifndef STDERR_FILENO 150# define STDERR_FILENO 2 151#endif 152 153#ifndef NGROUPS_MAX /* Disable groupaccess if NGROUP_MAX is not set */ 154#ifdef NGROUPS 155#define NGROUPS_MAX NGROUPS 156#else 157#define NGROUPS_MAX 0 158#endif 159#endif 160 161#if defined(HAVE_DECL_O_NONBLOCK) && HAVE_DECL_O_NONBLOCK == 0 162# define O_NONBLOCK 00004 /* Non Blocking Open */ 163#endif 164 165#ifndef S_IFSOCK 166# define S_IFSOCK 0 167#endif /* S_IFSOCK */ 168 169#ifndef S_ISDIR 170# define S_ISDIR(mode) (((mode) & (_S_IFMT)) == (_S_IFDIR)) 171#endif /* S_ISDIR */ 172 173#ifndef S_ISREG 174# define S_ISREG(mode) (((mode) & (_S_IFMT)) == (_S_IFREG)) 175#endif /* S_ISREG */ 176 177#ifndef S_ISLNK 178# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) 179#endif /* S_ISLNK */ 180 181#ifndef S_IXUSR 182# define S_IXUSR 0000100 /* execute/search permission, */ 183# define S_IXGRP 0000010 /* execute/search permission, */ 184# define S_IXOTH 0000001 /* execute/search permission, */ 185# define _S_IWUSR 0000200 /* write permission, */ 186# define S_IWUSR _S_IWUSR /* write permission, owner */ 187# define S_IWGRP 0000020 /* write permission, group */ 188# define S_IWOTH 0000002 /* write permission, other */ 189# define S_IRUSR 0000400 /* read permission, owner */ 190# define S_IRGRP 0000040 /* read permission, group */ 191# define S_IROTH 0000004 /* read permission, other */ 192# define S_IRWXU 0000700 /* read, write, execute */ 193# define S_IRWXG 0000070 /* read, write, execute */ 194# define S_IRWXO 0000007 /* read, write, execute */ 195#endif /* S_IXUSR */ 196 197#if !defined(MAP_ANON) && defined(MAP_ANONYMOUS) 198#define MAP_ANON MAP_ANONYMOUS 199#endif 200 201#ifndef MAP_FAILED 202# define MAP_FAILED ((void *)-1) 203#endif 204 205/* 206SCO Open Server 3 has INADDR_LOOPBACK defined in rpc/rpc.h but 207including rpc/rpc.h breaks Solaris 6 208*/ 209#ifndef INADDR_LOOPBACK 210#define INADDR_LOOPBACK ((u_long)0x7f000001) 211#endif 212 213/* Types */ 214 215/* If sys/types.h does not supply intXX_t, supply them ourselves */ 216/* (or die trying) */ 217 218#ifndef HAVE_U_INT 219typedef unsigned int u_int; 220#endif 221 222#ifndef HAVE_INTXX_T 223typedef signed char int8_t; 224# if (SIZEOF_SHORT_INT == 2) 225typedef short int int16_t; 226# else 227# error "16 bit int type not found." 228# endif 229# if (SIZEOF_INT == 4) 230typedef int int32_t; 231# else 232# error "32 bit int type not found." 233# endif 234#endif 235 236/* If sys/types.h does not supply u_intXX_t, supply them ourselves */ 237#ifndef HAVE_U_INTXX_T 238# ifdef HAVE_UINTXX_T 239typedef uint8_t u_int8_t; 240typedef uint16_t u_int16_t; 241typedef uint32_t u_int32_t; 242# define HAVE_U_INTXX_T 1 243# else 244typedef unsigned char u_int8_t; 245# if (SIZEOF_SHORT_INT == 2) 246typedef unsigned short int u_int16_t; 247# else 248# error "16 bit int type not found." 249# endif 250# if (SIZEOF_INT == 4) 251typedef unsigned int u_int32_t; 252# else 253# error "32 bit int type not found." 254# endif 255# endif 256#define __BIT_TYPES_DEFINED__ 257#endif 258 259#if !defined(LLONG_MIN) && defined(LONG_LONG_MIN) 260#define LLONG_MIN LONG_LONG_MIN 261#endif 262#if !defined(LLONG_MAX) && defined(LONG_LONG_MAX) 263#define LLONG_MAX LONG_LONG_MAX 264#endif 265 266#ifndef UINT32_MAX 267# if defined(HAVE_DECL_UINT32_MAX) && (HAVE_DECL_UINT32_MAX == 0) 268# if (SIZEOF_INT == 4) 269# define UINT32_MAX UINT_MAX 270# endif 271# endif 272#endif 273 274/* 64-bit types */ 275#ifndef HAVE_INT64_T 276# if (SIZEOF_LONG_INT == 8) 277typedef long int int64_t; 278# else 279# if (SIZEOF_LONG_LONG_INT == 8) 280typedef long long int int64_t; 281# endif 282# endif 283#endif 284#ifndef HAVE_U_INT64_T 285# if (SIZEOF_LONG_INT == 8) 286typedef unsigned long int u_int64_t; 287# else 288# if (SIZEOF_LONG_LONG_INT == 8) 289typedef unsigned long long int u_int64_t; 290# endif 291# endif 292#endif 293 294#ifndef HAVE_UINTXX_T 295typedef u_int8_t uint8_t; 296typedef u_int16_t uint16_t; 297typedef u_int32_t uint32_t; 298typedef u_int64_t uint64_t; 299#endif 300 301#ifndef HAVE_INTMAX_T 302typedef long long intmax_t; 303#endif 304 305#ifndef HAVE_UINTMAX_T 306typedef unsigned long long uintmax_t; 307#endif 308 309#if SIZEOF_TIME_T == SIZEOF_LONG_LONG_INT 310# define SSH_TIME_T_MAX LLONG_MAX 311#else 312# define SSH_TIME_T_MAX INT_MAX 313#endif 314 315#ifndef HAVE_U_CHAR 316typedef unsigned char u_char; 317# define HAVE_U_CHAR 318#endif /* HAVE_U_CHAR */ 319 320#ifndef ULLONG_MAX 321# define ULLONG_MAX ((unsigned long long)-1) 322#endif 323 324#ifndef SIZE_T_MAX 325#define SIZE_T_MAX ULONG_MAX 326#endif /* SIZE_T_MAX */ 327 328#ifndef HAVE_SIZE_T 329typedef unsigned int size_t; 330# define HAVE_SIZE_T 331# define SIZE_T_MAX UINT_MAX 332#endif /* HAVE_SIZE_T */ 333 334#ifndef SIZE_MAX 335#define SIZE_MAX SIZE_T_MAX 336#endif 337 338#ifndef INT32_MAX 339# if (SIZEOF_INT == 4) 340# define INT32_MAX INT_MAX 341# elif (SIZEOF_LONG == 4) 342# define INT32_MAX LONG_MAX 343# else 344# error "need INT32_MAX" 345# endif 346#endif 347 348#ifndef INT64_MAX 349# if (SIZEOF_INT == 8) 350# define INT64_MAX INT_MAX 351# elif (SIZEOF_LONG == 8) 352# define INT64_MAX LONG_MAX 353# elif (SIZEOF_LONG_LONG_INT == 8) 354# define INT64_MAX LLONG_MAX 355# else 356# error "need INT64_MAX" 357# endif 358#endif 359 360#ifndef HAVE_SSIZE_T 361typedef int ssize_t; 362#define SSIZE_MAX INT_MAX 363# define HAVE_SSIZE_T 364#endif /* HAVE_SSIZE_T */ 365 366#ifndef HAVE_CLOCK_T 367typedef long clock_t; 368# define HAVE_CLOCK_T 369#endif /* HAVE_CLOCK_T */ 370 371#ifndef HAVE_SA_FAMILY_T 372typedef int sa_family_t; 373# define HAVE_SA_FAMILY_T 374#endif /* HAVE_SA_FAMILY_T */ 375 376#ifndef HAVE_PID_T 377typedef int pid_t; 378# define HAVE_PID_T 379#endif /* HAVE_PID_T */ 380 381#ifndef HAVE_SIG_ATOMIC_T 382typedef int sig_atomic_t; 383# define HAVE_SIG_ATOMIC_T 384#endif /* HAVE_SIG_ATOMIC_T */ 385 386#ifndef HAVE_MODE_T 387typedef int mode_t; 388# define HAVE_MODE_T 389#endif /* HAVE_MODE_T */ 390 391#if !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE___SS_FAMILY_IN_SS) 392# define ss_family __ss_family 393#endif /* !defined(HAVE_SS_FAMILY_IN_SS) && defined(HAVE_SA_FAMILY_IN_SS) */ 394 395#ifndef HAVE_SYS_UN_H 396struct sockaddr_un { 397 short sun_family; /* AF_UNIX */ 398 char sun_path[108]; /* path name (gag) */ 399}; 400#endif /* HAVE_SYS_UN_H */ 401 402#ifndef HAVE_IN_ADDR_T 403typedef u_int32_t in_addr_t; 404#endif 405#ifndef HAVE_IN_PORT_T 406typedef u_int16_t in_port_t; 407#endif 408 409#if defined(BROKEN_SYS_TERMIO_H) && !defined(_STRUCT_WINSIZE) 410#define _STRUCT_WINSIZE 411struct winsize { 412 unsigned short ws_row; /* rows, in characters */ 413 unsigned short ws_col; /* columns, in character */ 414 unsigned short ws_xpixel; /* horizontal size, pixels */ 415 unsigned short ws_ypixel; /* vertical size, pixels */ 416}; 417#endif 418 419/* bits needed for select that may not be in the system headers */ 420#ifndef HAVE_FD_MASK 421 typedef unsigned long int fd_mask; 422#endif 423 424#if defined(HAVE_DECL_NFDBITS) && HAVE_DECL_NFDBITS == 0 425# define NFDBITS (8 * sizeof(unsigned long)) 426#endif 427 428#if defined(HAVE_DECL_HOWMANY) && HAVE_DECL_HOWMANY == 0 429# define howmany(x,y) (((x)+((y)-1))/(y)) 430#endif 431 432/* Paths */ 433 434#ifndef _PATH_BSHELL 435# define _PATH_BSHELL "/bin/sh" 436#endif 437 438#ifdef USER_PATH 439# ifdef _PATH_STDPATH 440# undef _PATH_STDPATH 441# endif 442# define _PATH_STDPATH USER_PATH 443#endif 444 445#ifndef _PATH_STDPATH 446# define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin" 447#endif 448 449#ifndef SUPERUSER_PATH 450# define SUPERUSER_PATH _PATH_STDPATH 451#endif 452 453#ifndef _PATH_DEVNULL 454# define _PATH_DEVNULL "/dev/null" 455#endif 456 457/* user may have set a different path */ 458#if defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) 459# undef _PATH_MAILDIR 460#endif /* defined(_PATH_MAILDIR) && defined(MAIL_DIRECTORY) */ 461 462#ifdef MAIL_DIRECTORY 463# define _PATH_MAILDIR MAIL_DIRECTORY 464#endif 465 466#ifndef _PATH_NOLOGIN 467# define _PATH_NOLOGIN "/etc/nologin" 468#endif 469 470/* Define this to be the path of the xauth program. */ 471#ifdef XAUTH_PATH 472#define _PATH_XAUTH XAUTH_PATH 473#endif /* XAUTH_PATH */ 474 475/* derived from XF4/xc/lib/dps/Xlibnet.h */ 476#ifndef X_UNIX_PATH 477# ifdef __hpux 478# define X_UNIX_PATH "/var/spool/sockets/X11/%u" 479# else 480# define X_UNIX_PATH "/tmp/.X11-unix/X%u" 481# endif 482#endif /* X_UNIX_PATH */ 483#define _PATH_UNIX_X X_UNIX_PATH 484 485#ifndef _PATH_TTY 486# define _PATH_TTY "/dev/tty" 487#endif 488 489/* Macros */ 490 491#if defined(HAVE_LOGIN_GETCAPBOOL) && defined(HAVE_LOGIN_CAP_H) 492# define HAVE_LOGIN_CAP 493#endif 494 495#ifndef MAX 496# define MAX(a,b) (((a)>(b))?(a):(b)) 497# define MIN(a,b) (((a)<(b))?(a):(b)) 498#endif 499 500#ifndef roundup 501# define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) 502#endif 503 504#ifndef timersub 505#define timersub(a, b, result) \ 506 do { \ 507 (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ 508 (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ 509 if ((result)->tv_usec < 0) { \ 510 --(result)->tv_sec; \ 511 (result)->tv_usec += 1000000; \ 512 } \ 513 } while (0) 514#endif 515 516#ifndef TIMEVAL_TO_TIMESPEC 517#define TIMEVAL_TO_TIMESPEC(tv, ts) { \ 518 (ts)->tv_sec = (tv)->tv_sec; \ 519 (ts)->tv_nsec = (tv)->tv_usec * 1000; \ 520} 521#endif 522 523#ifndef TIMESPEC_TO_TIMEVAL 524#define TIMESPEC_TO_TIMEVAL(tv, ts) { \ 525 (tv)->tv_sec = (ts)->tv_sec; \ 526 (tv)->tv_usec = (ts)->tv_nsec / 1000; \ 527} 528#endif 529 530#ifndef timespeccmp 531#define timespeccmp(tsp, usp, cmp) \ 532 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 533 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 534 ((tsp)->tv_sec cmp (usp)->tv_sec)) 535#endif 536 537/* Operations on timespecs. */ 538#ifndef timespecclear 539#define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0 540#endif 541#ifndef timespeccmp 542#define timespeccmp(tsp, usp, cmp) \ 543 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 544 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 545 ((tsp)->tv_sec cmp (usp)->tv_sec)) 546#endif 547#ifndef timespecadd 548#define timespecadd(tsp, usp, vsp) \ 549 do { \ 550 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 551 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 552 if ((vsp)->tv_nsec >= 1000000000L) { \ 553 (vsp)->tv_sec++; \ 554 (vsp)->tv_nsec -= 1000000000L; \ 555 } \ 556 } while (0) 557#endif 558#ifndef timespecsub 559#define timespecsub(tsp, usp, vsp) \ 560 do { \ 561 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 562 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 563 if ((vsp)->tv_nsec < 0) { \ 564 (vsp)->tv_sec--; \ 565 (vsp)->tv_nsec += 1000000000L; \ 566 } \ 567 } while (0) 568#endif 569 570#ifndef __P 571# define __P(x) x 572#endif 573 574#if !defined(IN6_IS_ADDR_V4MAPPED) 575# define IN6_IS_ADDR_V4MAPPED(a) \ 576 ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \ 577 (((u_int32_t *) (a))[2] == htonl (0xffff))) 578#endif /* !defined(IN6_IS_ADDR_V4MAPPED) */ 579 580#if !defined(__GNUC__) || (__GNUC__ < 2) 581# define __attribute__(x) 582#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */ 583 584#if !defined(HAVE_ATTRIBUTE__SENTINEL__) && !defined(__sentinel__) 585# define __sentinel__ 586#endif 587 588#if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__bounded__) 589# define __bounded__(x, y, z) 590#endif 591 592#if !defined(HAVE_ATTRIBUTE__NONNULL__) && !defined(__nonnull__) 593# define __nonnull__(x) 594#endif 595 596#ifndef OSSH_ALIGNBYTES 597#define OSSH_ALIGNBYTES (sizeof(int) - 1) 598#endif 599#ifndef __CMSG_ALIGN 600#define __CMSG_ALIGN(p) (((u_int)(p) + OSSH_ALIGNBYTES) &~ OSSH_ALIGNBYTES) 601#endif 602 603/* Length of the contents of a control message of length len */ 604#ifndef CMSG_LEN 605#define CMSG_LEN(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + (len)) 606#endif 607 608/* Length of the space taken up by a padded control message of length len */ 609#ifndef CMSG_SPACE 610#define CMSG_SPACE(len) (__CMSG_ALIGN(sizeof(struct cmsghdr)) + __CMSG_ALIGN(len)) 611#endif 612 613/* given pointer to struct cmsghdr, return pointer to data */ 614#ifndef CMSG_DATA 615#define CMSG_DATA(cmsg) ((u_char *)(cmsg) + __CMSG_ALIGN(sizeof(struct cmsghdr))) 616#endif /* CMSG_DATA */ 617 618/* 619 * RFC 2292 requires to check msg_controllen, in case that the kernel returns 620 * an empty list for some reasons. 621 */ 622#ifndef CMSG_FIRSTHDR 623#define CMSG_FIRSTHDR(mhdr) \ 624 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ 625 (struct cmsghdr *)(mhdr)->msg_control : \ 626 (struct cmsghdr *)NULL) 627#endif /* CMSG_FIRSTHDR */ 628 629#if defined(HAVE_DECL_OFFSETOF) && HAVE_DECL_OFFSETOF == 0 630# define offsetof(type, member) ((size_t) &((type *)0)->member) 631#endif 632 633/* Set up BSD-style BYTE_ORDER definition if it isn't there already */ 634/* XXX: doesn't try to cope with strange byte orders (PDP_ENDIAN) */ 635#ifndef BYTE_ORDER 636# ifndef LITTLE_ENDIAN 637# define LITTLE_ENDIAN 1234 638# endif /* LITTLE_ENDIAN */ 639# ifndef BIG_ENDIAN 640# define BIG_ENDIAN 4321 641# endif /* BIG_ENDIAN */ 642# ifdef WORDS_BIGENDIAN 643# define BYTE_ORDER BIG_ENDIAN 644# else /* WORDS_BIGENDIAN */ 645# define BYTE_ORDER LITTLE_ENDIAN 646# endif /* WORDS_BIGENDIAN */ 647#endif /* BYTE_ORDER */ 648 649/* Function replacement / compatibility hacks */ 650 651#if !defined(HAVE_GETADDRINFO) && (defined(HAVE_OGETADDRINFO) || defined(HAVE_NGETADDRINFO)) 652# define HAVE_GETADDRINFO 653#endif 654 655#ifndef HAVE_GETOPT_OPTRESET 656# undef getopt 657# undef opterr 658# undef optind 659# undef optopt 660# undef optreset 661# undef optarg 662# define getopt(ac, av, o) BSDgetopt(ac, av, o) 663# define opterr BSDopterr 664# define optind BSDoptind 665# define optopt BSDoptopt 666# define optreset BSDoptreset 667# define optarg BSDoptarg 668#endif 669 670#if defined(BROKEN_GETADDRINFO) && defined(HAVE_GETADDRINFO) 671# undef HAVE_GETADDRINFO 672#endif 673#if defined(BROKEN_GETADDRINFO) && defined(HAVE_FREEADDRINFO) 674# undef HAVE_FREEADDRINFO 675#endif 676#if defined(BROKEN_GETADDRINFO) && defined(HAVE_GAI_STRERROR) 677# undef HAVE_GAI_STRERROR 678#endif 679 680#if defined(HAVE_GETADDRINFO) 681# if defined(HAVE_DECL_AI_NUMERICSERV) && HAVE_DECL_AI_NUMERICSERV == 0 682# define AI_NUMERICSERV 0 683# endif 684#endif 685 686#if defined(BROKEN_UPDWTMPX) && defined(HAVE_UPDWTMPX) 687# undef HAVE_UPDWTMPX 688#endif 689 690#if defined(BROKEN_SHADOW_EXPIRE) && defined(HAS_SHADOW_EXPIRE) 691# undef HAS_SHADOW_EXPIRE 692#endif 693 694#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT) && \ 695 defined(SYSLOG_R_SAFE_IN_SIGHAND) 696# define DO_LOG_SAFE_IN_SIGHAND 697#endif 698 699#if !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) 700# define memmove(s1, s2, n) bcopy((s2), (s1), (n)) 701#endif /* !defined(HAVE_MEMMOVE) && defined(HAVE_BCOPY) */ 702 703#ifndef GETPGRP_VOID 704# include <unistd.h> 705# define getpgrp() getpgrp(0) 706#endif 707 708#ifdef USE_BSM_AUDIT 709# define SSH_AUDIT_EVENTS 710# define CUSTOM_SSH_AUDIT_EVENTS 711#endif 712 713#ifdef USE_LINUX_AUDIT 714# define SSH_AUDIT_EVENTS 715# define CUSTOM_SSH_AUDIT_EVENTS 716#endif 717 718#if !defined(HAVE___func__) && defined(HAVE___FUNCTION__) 719# define __func__ __FUNCTION__ 720#elif !defined(HAVE___func__) 721# define __func__ "" 722#endif 723 724#if defined(KRB5) && !defined(HEIMDAL) 725# define krb5_get_err_text(context,code) error_message(code) 726#endif 727 728/* Maximum number of file descriptors available */ 729#ifdef HAVE_SYSCONF 730# define SSH_SYSFDMAX sysconf(_SC_OPEN_MAX) 731#else 732# define SSH_SYSFDMAX 10000 733#endif 734 735#ifdef FSID_HAS_VAL 736/* encode f_fsid into a 64 bit value */ 737#define FSID_TO_ULONG(f) \ 738 ((((u_int64_t)(f).val[0] & 0xffffffffUL) << 32) | \ 739 ((f).val[1] & 0xffffffffUL)) 740#elif defined(FSID_HAS___VAL) 741#define FSID_TO_ULONG(f) \ 742 ((((u_int64_t)(f).__val[0] & 0xffffffffUL) << 32) | \ 743 ((f).__val[1] & 0xffffffffUL)) 744#else 745# define FSID_TO_ULONG(f) ((f)) 746#endif 747 748#if defined(__Lynx__) 749 /* 750 * LynxOS defines these in param.h which we do not want to include since 751 * it will also pull in a bunch of kernel definitions. 752 */ 753# define ALIGNBYTES (sizeof(int) - 1) 754# define ALIGN(p) (((unsigned)p + ALIGNBYTES) & ~ALIGNBYTES) 755 /* Missing prototypes on LynxOS */ 756 int snprintf (char *, size_t, const char *, ...); 757 int mkstemp (char *); 758 char *crypt (const char *, const char *); 759 int seteuid (uid_t); 760 int setegid (gid_t); 761 char *mkdtemp (char *); 762 int rresvport_af (int *, sa_family_t); 763 int innetgr (const char *, const char *, const char *, const char *); 764#endif 765 766/* 767 * Define this to use pipes instead of socketpairs for communicating with the 768 * client program. Socketpairs do not seem to work on all systems. 769 * 770 * configure.ac sets this for a few OS's which are known to have problems 771 * but you may need to set it yourself 772 */ 773/* #define USE_PIPES 1 */ 774 775/** 776 ** login recorder definitions 777 **/ 778 779/* FIXME: put default paths back in */ 780#ifndef UTMP_FILE 781# ifdef _PATH_UTMP 782# define UTMP_FILE _PATH_UTMP 783# else 784# ifdef CONF_UTMP_FILE 785# define UTMP_FILE CONF_UTMP_FILE 786# endif 787# endif 788#endif 789#ifndef WTMP_FILE 790# ifdef _PATH_WTMP 791# define WTMP_FILE _PATH_WTMP 792# else 793# ifdef CONF_WTMP_FILE 794# define WTMP_FILE CONF_WTMP_FILE 795# endif 796# endif 797#endif 798/* pick up the user's location for lastlog if given */ 799#ifndef LASTLOG_FILE 800# ifdef _PATH_LASTLOG 801# define LASTLOG_FILE _PATH_LASTLOG 802# else 803# ifdef CONF_LASTLOG_FILE 804# define LASTLOG_FILE CONF_LASTLOG_FILE 805# endif 806# endif 807#endif 808 809#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) 810# define USE_SHADOW 811#endif 812 813/* The login() library function in libutil is first choice */ 814#if defined(HAVE_LOGIN) && !defined(DISABLE_LOGIN) 815# define USE_LOGIN 816 817#else 818/* Simply select your favourite login types. */ 819/* Can't do if-else because some systems use several... <sigh> */ 820# if !defined(DISABLE_UTMPX) 821# define USE_UTMPX 822# endif 823# if defined(UTMP_FILE) && !defined(DISABLE_UTMP) 824# define USE_UTMP 825# endif 826# if defined(WTMPX_FILE) && !defined(DISABLE_WTMPX) 827# define USE_WTMPX 828# endif 829# if defined(WTMP_FILE) && !defined(DISABLE_WTMP) 830# define USE_WTMP 831# endif 832 833#endif 834 835#ifndef UT_LINESIZE 836# define UT_LINESIZE 8 837#endif 838 839/* I hope that the presence of LASTLOG_FILE is enough to detect this */ 840#if defined(LASTLOG_FILE) && !defined(DISABLE_LASTLOG) 841# define USE_LASTLOG 842#endif 843 844#ifdef HAVE_OSF_SIA 845# ifdef USE_SHADOW 846# undef USE_SHADOW 847# endif 848# define CUSTOM_SYS_AUTH_PASSWD 1 849#endif 850 851#if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(HAVE_SECUREWARE) 852# define CUSTOM_SYS_AUTH_PASSWD 1 853#endif 854#if defined(HAVE_LIBIAF) && defined(HAVE_SET_ID) && !defined(BROKEN_LIBIAF) 855# define USE_LIBIAF 856#endif 857 858/* HP-UX 11.11 */ 859#ifdef BTMP_FILE 860# define _PATH_BTMP BTMP_FILE 861#endif 862 863#if defined(USE_BTMP) && defined(_PATH_BTMP) 864# define CUSTOM_FAILED_LOGIN 865#endif 866 867/** end of login recorder definitions */ 868 869#ifdef BROKEN_GETGROUPS 870# define getgroups(a,b) ((a)==0 && (b)==NULL ? NGROUPS_MAX : getgroups((a),(b))) 871#endif 872 873#ifndef IOV_MAX 874# if defined(_XOPEN_IOV_MAX) 875# define IOV_MAX _XOPEN_IOV_MAX 876# elif defined(DEF_IOV_MAX) 877# define IOV_MAX DEF_IOV_MAX 878# else 879# define IOV_MAX 16 880# endif 881#endif 882 883#ifndef EWOULDBLOCK 884# define EWOULDBLOCK EAGAIN 885#endif 886 887#ifndef INET6_ADDRSTRLEN /* for non IPv6 machines */ 888#define INET6_ADDRSTRLEN 46 889#endif 890 891#ifndef SSH_IOBUFSZ 892# define SSH_IOBUFSZ 8192 893#endif 894 895/* 896 * We want functions in openbsd-compat, if enabled, to override system ones. 897 * We no-op out the weak symbol definition rather than remove it to reduce 898 * future sync problems. Some compilers (eg Unixware) do not allow an 899 * empty statement, so we use a bogus function declaration. 900 */ 901#define DEF_WEAK(x) void __ssh_compat_weak_##x(void) 902 903/* 904 * Platforms that have arc4random_uniform() and not arc4random_stir() 905 * shouldn't need the latter. 906 */ 907#if defined(HAVE_ARC4RANDOM) && defined(HAVE_ARC4RANDOM_UNIFORM) && \ 908 !defined(HAVE_ARC4RANDOM_STIR) 909# define arc4random_stir() 910#endif 911 912#ifndef HAVE_VA_COPY 913# ifdef HAVE___VA_COPY 914# define va_copy(dest, src) __va_copy(dest, src) 915# else 916# define va_copy(dest, src) (dest) = (src) 917# endif 918#endif 919 920#ifndef __predict_true 921# if defined(__GNUC__) && \ 922 ((__GNUC__ > (2)) || (__GNUC__ == (2) && __GNUC_MINOR__ >= (96))) 923# define __predict_true(exp) __builtin_expect(((exp) != 0), 1) 924# define __predict_false(exp) __builtin_expect(((exp) != 0), 0) 925# else 926# define __predict_true(exp) ((exp) != 0) 927# define __predict_false(exp) ((exp) != 0) 928# endif /* gcc version */ 929#endif /* __predict_true */ 930 931#if defined(HAVE_GLOB_H) && defined(GLOB_HAS_ALTDIRFUNC) && \ 932 defined(GLOB_HAS_GL_MATCHC) && defined(GLOB_HAS_GL_STATV) && \ 933 defined(HAVE_DECL_GLOB_NOMATCH) && HAVE_DECL_GLOB_NOMATCH != 0 && \ 934 !defined(BROKEN_GLOB) 935# define USE_SYSTEM_GLOB 936#endif 937 938/* 939 * sntrup761 uses variable length arrays and c99-style declarations after code, 940 * so only enable if the compiler supports them. 941 */ 942#if defined(VARIABLE_LENGTH_ARRAYS) && defined(VARIABLE_DECLARATION_AFTER_CODE) 943# define USE_SNTRUP761X25519 1 944#endif 945#endif /* _DEFINES_H */ 946