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- /* generic.h -- anything you don't #undef at the end remains in effect.
- The ONLY things that go in here are generic indicator flags; it's up
- to your programs to declare and call things based on those flags.
-
- You should only need to make changes via a minimal system-specific section
- at the end of this file. To build a new section, rip through this and
- check everything it mentions on your platform, and #undef that which needs
- it. If you generate a system-specific section you didn't find in here,
- please mail me a copy so I can update the "master".
-
- I realize I'm probably inventing another pseudo-standard here, but
- goddamnit, everybody ELSE has already, and I can't include all of their
- hairball schemes too. HAVE_xx conforms to the gnu/autoconf usage and
- seems to be the most common format. In fact, I dug a lot of these out
- of autoconf and tried to common them all together using "stupidh" to
- collect data from platforms.
-
- In disgust... _H* 940910, 941115, 950511. Pseudo-version: 1.3
-
- Updated 951104 with many patches from netcat feedback, and properly
- closed a lot of slop in open-ended comments: version 1.4
- 960217 + nextstep: version 1.5
- */
-
- #ifndef GENERIC_H /* only run through this once */
- #define GENERIC_H
-
- /* =============================== */
- /* System calls, lib routines, etc */
- /* =============================== */
-
- /* How does your system declare malloc, void or char? Usually void, but go
- ask the SunOS people why they had to be different... */
- #define VOID_MALLOC
-
- /* notably from fwtk/firewall.h: posix locking? */
- #define HAVE_FLOCK /* otherwise it's lockf() */
-
- /* if you don't have setsid(), you might have setpgrp(). */
- #define HAVE_SETSID
-
- /* random() is generally considered better than rand() */
- #define HAVE_RANDOM
-
- /* the srand48/lrand48/etc family is s'posedly even better */
- #define HAVE_RAND48
- /* bmc@telebase and others have suggested these macros if a box *does* have
- rand48. Will consider for later if we're doing something that really
- requires stronger random numbers, but netcat and such certainly doesn't.
- #define srandom(seed) srand48((long) seed)
- #define random() lrand48() */
-
- /* if your machine doesn't have lstat(), it should have stat() [dos...] */
- #define HAVE_LSTAT
-
- /* different kinds of term ioctls. How to recognize them, very roughly:
- sysv/POSIX_ME_HARDER: termio[s].h, struct termio[s], tty.c_*[]
- bsd/old stuff: sgtty.h, ioctl(TIOCSETP), sgttyb.sg_*, tchars.t_* */
- #define HAVE_TERMIOS
-
- /* dbm vs ndbm */
- #define HAVE_NDBM
-
- /* extended utmp/wtmp stuff. MOST machines still do NOT have this SV-ism */
- #define UTMPX
-
- /* some systems have nice() which takes *relative* values... [resource.h] */
- #define HAVE_SETPRIORITY
-
- /* a sysvism, I think, but ... */
- #define HAVE_SYSINFO
-
- /* ============= */
- /* Include files */
- /* ============= */
-
- /* Presence of these can be determined via a script that sniffs them
- out if you aren't sure. See "stupidh"... */
-
- /* stdlib comes with most modern compilers, but ya never know */
- #define HAVE_STDLIB_H
-
- /* not on a DOS box! */
- #define HAVE_UNISTD_H
-
- /* stdarg is a weird one */
- #define HAVE_STDARG_H
-
- /* dir.h or maybe ndir.h otherwise. */
- #define HAVE_DIRENT_H
-
- /* string or strings */
- #define HAVE_STRINGS_H
-
- /* if you don't have lastlog.h, what you want might be in login.h */
- #define HAVE_LASTLOG_H
-
- /* predefines for _PATH_various */
- #define HAVE_PATHS_H
-
- /* some SV-flavors break select stuff out separately */
- #define HAVE_SELECT_H
-
- /* assorted others */
- #define HAVE_PARAM_H /* in sys/ */
- #define HAVE_SYSMACROS_H /* in sys/ */
- #define HAVE_TTYENT_H /* securetty et al */
-
- /* ==================== */
-
- /* Still maybe have to do something about the following, if it's even
- worth it. I just grepped a lot of these out of various code, without
- looking them up yet:
-
- #define HAVE_EINPROGRESS
- #define HAVE_F_SETOWN
- HAVE_FILIO_H ... fionbio, fiosetown, etc... will need for hairier
- select loops.
- #define HAVE_SETENV ... now *there's* a hairy one; **environ is portable
- #define BIG_ENDIAN/little_endian ... *please* try to avoid this stupidity
- and LSBFIRST/MSBFIRST
- #define HAVE_GETUSERSHELL ... you could always pull it out of getpwent()
- #define HAVE_SETE[UG]ID ... lib or syscall, it varies on diff platforms
- #define HAVE_STRCHR ... should actually be handled by string/strings
- #define HAVE_PSTAT
- #define HAVE_ST_BLKSIZE ... a stat() thing?
- #define HAVE_IP_TOS
- #define HAVE_STRFTIME ... screw this, we'll just INCLUDE one for lame
- old boxes that don't have it [sunos 3.x, early 4.x?]
- #define HAVE_VFPRINTF
- #define HAVE_SHADOW_PASSWD ... in its multitudinous schemes?? ... how
- about sumpin' like #define SHADOW_PASSWD_TYPE ... could get grody.
- ... looks like sysv /etc/shadow, getspent() family is common.
- #define SIG* ... what a swamp, punt for now; should all be in signal.h
- #define HAVE_STRCSPN ... see larry wall's comment in the fwtk regex code
- #define ULTRIX_AUTH ... bwahaha.
- #define HAVE_YP or NIS or whatever you wanna call it this week
- randomness about VARARGS??
- --- later stuff to be considered ---
- #define UINT4 ... u-int on alpha/osf, i.e. __alpha/__osf__, ulong elsewhere?
- dont name it that, though, it'll conflict with extant .h files like md5
- randomness about machine/endian.h, machine/inline.h -- bsdi, net/2
- randomness about _PATH_WTMP vs WTMP_FILE and where they even live!!
- #define HAVE_SYS_ERRLIST ... whether it's in stdio.h or not [bsd 4.4]
- --- still more stuff
- #define HAVE_SETENV
- #define _PATH_UTMP vs UTMP_FILE, a la deslogind?!
- #define HAVE_DAEMON
- #define HAVE_INETADDR [vixie bind?]
- lseek: SEEK_SET vs L_SET and associated lossage [epi-notes, old 386Mach]
- bsdi: ioctl_compat.h ?
- --- takin' some ifdefs from CNS krb:
- F_GETOWN/F_SETOWN
- CRAY: long = 8 bytes, etc [class with alpha?]
- CGETENT
- SIGINFO
- SIGTSTP SIGTTOU SIGWINCH
- SPX?
- SYSV_TERMIO -- covered elsewhere, I hope
- TIOCEXT TIOCFLUSH TIOC[GS]WINSIZ
- NEWINIT: something about init cleaning up dead login processes [telnet?]
- PARENT_DOES_UTMP, too [telnet]
- VDISCARD
- VEOL/VEOL2/VLNEXT VREPRINT -- termios stuff?, and related...
- STREAMSPTY/STREAMSPTYEM
- AF_INET/AF_UNSPEC, PF_*
- ECHOCTL/ECHOKE
- F_ULOCK [?!]
- setpgrp/getpgrp() ONEARG business..
- HAVE_ALLOCA
- HAVE_GETUTENT
- HAVE_SYS_SELECT_H [irix!]
- HAVE_DIRENT [old 386mach has *direct.h*!]
- HAVE_SIGSET
- HAVE_VFORK_H and HAVE_VFORK
- HAVE_VHANGUP
- HAVE_VSPRINTF
- HAVE_IPTOS_*
- HAVE_STRCASECMP, STRNCASECMP
- HAVE_SYS_FCNTL_H
- HAVE_SYS_TIME_H
- HAVE_UTIMES
- NOTTYENT [?]
- HAVE_FCHMOD
- HAVE_GETUSERSHELL
- HAVE_SIGCONTEXT [stack hair, very machine-specific]
- YYLINENO?
- POSIX_SIGNALS
- POSIX_TERMIOS
- SETPROCTITLE -- breaks some places, like fbsd sendmail
- SIG* -- actual signal names? some are missing
- SIOCGIFCONF
- SO_BROADCAST
- SHMEM [krb tickets]
- VARARGS, or HAVE_VARARGS
- CBAUD
- ... and B300, B9600, etc etc
- HAVE_BZERO vs memset/memcpy
- HAVE_SETVBUF
- HAVE_STRDUP
- HAVE_GETENV
- HAVE_STRSAVE
- HAVE_STBLKSIZE [stat?]
- HAVE_STREAM_H -- in sys/, ref sendmail 8.7 for IP_SRCROUTE
- FCHMOD
- INITGROUPS -- most machines seem to *have*
- SETREUID
- SNPRINTF
- SETPGRP semantics bsd vs. sys5 style
-
- There's also the issue about WHERE various .h files live, sys/ or otherwise.
- There's a BIG swamp lurking where network code of any sort lives.
- */
-
- /* ======================== */
- /* System-specific sections */
- /* ======================== */
-
- /* By turning OFF various bits of the above, you can customize for
- a given platform. Yes, we're ignoring the stock compiler predefines
- and using our own plugged in via the Makefile. */
-
- /* DOS boxes, with MSC; you may need to adapt to a different compiler. */
- /* looks like later ones *do* have dirent.h, for example */
- #ifdef MSDOS
- #undef HAVE_FLOCK
- #undef HAVE_RANDOM
- #undef HAVE_LSTAT
- #undef HAVE_TERMIOS
- #undef UTMPX
- #undef HAVE_SYSINFO
- #undef HAVE_UNISTD_H
- #undef HAVE_DIRENT_H /* unless you have the k00l little wrapper from L5!! */
- #undef HAVE_STRINGS_H
- #undef HAVE_LASTLOG_H
- #undef HAVE_PATHS_H
- #undef HAVE_PARAM_H
- #undef HAVE_SYSMACROS_H
- #undef HAVE_SELECT_H
- #undef HAVE_TTYENT_H
- #endif /* MSDOS */
-
- /* buglix 4.x; dunno about 3.x on down. should be bsd4.2 */
- #ifdef ULTRIX
- #undef UTMPX
- #undef HAVE_PATHS_H
- #undef HAVE_SYSMACROS_H
- #undef HAVE_SELECT_H
- #endif /* buglix */
-
- /* some of this might still be broken on older sunoses */
- #ifdef SUNOS
- #undef VOID_MALLOC
- #undef UTMPX
- #undef HAVE_PATHS_H
- #undef HAVE_SELECT_H
- #endif /* sunos */
-
- /* "contact your vendor for a fix" */
- #ifdef SOLARIS
- /* has UTMPX */
- #undef HAVE_RANDOM
- #undef HAVE_SETPRIORITY
- #undef HAVE_STRINGS_H /* this is genuinely the case, go figure */
- #undef HAVE_PATHS_H
- #undef HAVE_SELECT_H
- #undef HAVE_TTYENT_H
- #endif /* SOLARIS */
-
- /* whatever aix variant MIT had at the time; 3.2.x?? */
- #ifdef AIX
- #undef UTMPX
- #undef HAVE_LASTLOG_H
- #define HAVE_LOGIN_H /* "special", in the educational sense */
- #endif /* aix */
-
- /* linux, which is trying as desperately as the gnu folks can to be
- POSIXLY_CORRECT. I think I'm gonna hurl... */
- #ifdef LINUX
- #undef UTMPX
- #undef HAVE_SYSINFO
- #undef HAVE_SELECT_H
- #undef HAVE_TTYENT_H
- #endif /* linux */
-
- /* irix 5.x; may not be correct for earlier ones */
- #ifdef IRIX
- /* wow, does irix really have everything?! */
- #endif /* irix */
-
- /* osf on alphas */
- #ifdef OSF
- #undef UTMPX
- #undef HAVE_SELECT_H
- #endif /* osf */
-
- /* they's some FUCKED UP paths in this one! */
- #ifdef FREEBSD
- #undef UTMPX
- #undef HAVE_SYSINFO
- #undef HAVE_LASTLOG_H
- #undef HAVE_SYSMACROS_H
- #undef HAVE_SELECT_H /* actually a lie, but only for kernel */
- #endif /* freebsd */
-
- /* Originally from the sidewinder site, of all places, but subsequently
- checked further under a more normal bsdi 2.0 */
- #ifdef BSDI
- #undef UTMPX
- #undef HAVE_LASTLOG_H
- #undef HAVE_SYSMACROS_H
- /* and their malloc.h was in sys/ ?! */
- #undef HAVE_SELECT_H
- #endif /* bsdi */
-
- /* netbsd/44lite, jives with amiga-netbsd from cactus */
- #ifdef NETBSD
- #undef UTMPX
- #undef HAVE_SYSINFO
- #undef HAVE_LASTLOG_H
- #undef HAVE_SELECT_H
- #endif /* netbsd */
-
- /* Hpux 9.0x, from BBN and various patches sent in */
- #ifdef HPUX
- #undef HAVE_RANDOM /* but *does* have ?rand48 -- need to consider.. */
- #undef HAVE_UTMPX
- #undef HAVE_LASTLOG_H /* has utmp/wtmp/btmp nonsense, and pututline() */
- #undef HAVE_PATHS_H
- #undef HAVE_SELECT_H
- #undef HAVE_TTYENT_H
- #endif /* hockeypux */
-
- /* Unixware [a loose definition of "unix", to be sure], 1.1.2 [at least]
- from Brian Clapper. He wasn't sure about 2.0... */
- #ifdef UNIXWARE
- /* has UTMPX */
- #undef HAVE_SETPRIORITY
- /* NOTE: UnixWare does provide the BSD stuff, in "/usr/ucbinclude" (headers)
- and "/usr/ucblib" (libraries). However, I've run into problems linking
- stuff out of that version of the C library, when objects are also coming
- out of the "regular" C library. My advice: Avoid the BSD compatibility
- stuff wherever possible. Brian Clapper <bmc@telebase.com> */
- #undef HAVE_STRINGS_H
- #undef HAVE_PATHS_H
- #undef HAVE_TTYENT_H
- #endif /* UNIXWARE */
-
- /* A/UX 3.1.x from darieb@sandia.gov */
- #ifdef AUX
- #undef HAVE_RANDOM
- #undef HAVE_SELECT_H /* xxx: untested */
- #endif /* a/ux */
-
- /* NeXTSTEP 3.2 motorola mudge@l0pht.com xxx should also work with
- white hardware and Sparc/HPPA. Should work with 3.3 too as it's
- 4.3 / 4.4 bsd wrapped around mach */
- #ifdef NEXT
- #undef UTMPX
- #undef HAVE_SELECT_X
- #endif /* NeXTSTEP 3.2 motorola */
-
- /* Make some "generic" assumptions if all else fails */
- #ifdef GENERIC
- #undef HAVE_FLOCK
- #if defined(SYSV) && (SYSV < 4) /* TW leftover: old SV doesnt have symlinks */
- #undef HAVE_LSTAT
- #endif /* old SYSV */
- #undef HAVE_TERMIOS
- #undef UTMPX
- #undef HAVE_PATHS_H
- #undef HAVE_SELECT_H
- #endif /* generic */
-
- /* ================ */
- #endif /* GENERIC_H */
-
-