/* 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 /* some put time() in here rather than sys/time.h */ #define HAVE_TIME_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 #define HAVE_SIGSETJMP #define HAVE_SOCKLEN_T #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 */ #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 */