Annotation of src/usr.bin/nc/generic.h, Revision 1.1
1.1 ! deraadt 1: /* generic.h -- anything you don't #undef at the end remains in effect.
! 2: The ONLY things that go in here are generic indicator flags; it's up
! 3: to your programs to declare and call things based on those flags.
! 4:
! 5: You should only need to make changes via a minimal system-specific section
! 6: at the end of this file. To build a new section, rip through this and
! 7: check everything it mentions on your platform, and #undef that which needs
! 8: it. If you generate a system-specific section you didn't find in here,
! 9: please mail me a copy so I can update the "master".
! 10:
! 11: I realize I'm probably inventing another pseudo-standard here, but
! 12: goddamnit, everybody ELSE has already, and I can't include all of their
! 13: hairball schemes too. HAVE_xx conforms to the gnu/autoconf usage and
! 14: seems to be the most common format. In fact, I dug a lot of these out
! 15: of autoconf and tried to common them all together using "stupidh" to
! 16: collect data from platforms.
! 17:
! 18: In disgust... _H* 940910, 941115, 950511. Pseudo-version: 1.3
! 19:
! 20: Updated 951104 with many patches from netcat feedback, and properly
! 21: closed a lot of slop in open-ended comments: version 1.4
! 22: 960217 + nextstep: version 1.5
! 23: */
! 24:
! 25: #ifndef GENERIC_H /* only run through this once */
! 26: #define GENERIC_H
! 27:
! 28: /* =============================== */
! 29: /* System calls, lib routines, etc */
! 30: /* =============================== */
! 31:
! 32: /* How does your system declare malloc, void or char? Usually void, but go
! 33: ask the SunOS people why they had to be different... */
! 34: #define VOID_MALLOC
! 35:
! 36: /* notably from fwtk/firewall.h: posix locking? */
! 37: #define HAVE_FLOCK /* otherwise it's lockf() */
! 38:
! 39: /* if you don't have setsid(), you might have setpgrp(). */
! 40: #define HAVE_SETSID
! 41:
! 42: /* random() is generally considered better than rand() */
! 43: #define HAVE_RANDOM
! 44:
! 45: /* the srand48/lrand48/etc family is s'posedly even better */
! 46: #define HAVE_RAND48
! 47: /* bmc@telebase and others have suggested these macros if a box *does* have
! 48: rand48. Will consider for later if we're doing something that really
! 49: requires stronger random numbers, but netcat and such certainly doesn't.
! 50: #define srandom(seed) srand48((long) seed)
! 51: #define random() lrand48() */
! 52:
! 53: /* if your machine doesn't have lstat(), it should have stat() [dos...] */
! 54: #define HAVE_LSTAT
! 55:
! 56: /* different kinds of term ioctls. How to recognize them, very roughly:
! 57: sysv/POSIX_ME_HARDER: termio[s].h, struct termio[s], tty.c_*[]
! 58: bsd/old stuff: sgtty.h, ioctl(TIOCSETP), sgttyb.sg_*, tchars.t_* */
! 59: #define HAVE_TERMIOS
! 60:
! 61: /* dbm vs ndbm */
! 62: #define HAVE_NDBM
! 63:
! 64: /* extended utmp/wtmp stuff. MOST machines still do NOT have this SV-ism */
! 65: #define UTMPX
! 66:
! 67: /* some systems have nice() which takes *relative* values... [resource.h] */
! 68: #define HAVE_SETPRIORITY
! 69:
! 70: /* a sysvism, I think, but ... */
! 71: #define HAVE_SYSINFO
! 72:
! 73: /* ============= */
! 74: /* Include files */
! 75: /* ============= */
! 76:
! 77: /* Presence of these can be determined via a script that sniffs them
! 78: out if you aren't sure. See "stupidh"... */
! 79:
! 80: /* stdlib comes with most modern compilers, but ya never know */
! 81: #define HAVE_STDLIB_H
! 82:
! 83: /* not on a DOS box! */
! 84: #define HAVE_UNISTD_H
! 85:
! 86: /* stdarg is a weird one */
! 87: #define HAVE_STDARG_H
! 88:
! 89: /* dir.h or maybe ndir.h otherwise. */
! 90: #define HAVE_DIRENT_H
! 91:
! 92: /* string or strings */
! 93: #define HAVE_STRINGS_H
! 94:
! 95: /* if you don't have lastlog.h, what you want might be in login.h */
! 96: #define HAVE_LASTLOG_H
! 97:
! 98: /* predefines for _PATH_various */
! 99: #define HAVE_PATHS_H
! 100:
! 101: /* some SV-flavors break select stuff out separately */
! 102: #define HAVE_SELECT_H
! 103:
! 104: /* assorted others */
! 105: #define HAVE_PARAM_H /* in sys/ */
! 106: #define HAVE_SYSMACROS_H /* in sys/ */
! 107: #define HAVE_TTYENT_H /* securetty et al */
! 108:
! 109: /* ==================== */
! 110:
! 111: /* Still maybe have to do something about the following, if it's even
! 112: worth it. I just grepped a lot of these out of various code, without
! 113: looking them up yet:
! 114:
! 115: #define HAVE_EINPROGRESS
! 116: #define HAVE_F_SETOWN
! 117: HAVE_FILIO_H ... fionbio, fiosetown, etc... will need for hairier
! 118: select loops.
! 119: #define HAVE_SETENV ... now *there's* a hairy one; **environ is portable
! 120: #define BIG_ENDIAN/little_endian ... *please* try to avoid this stupidity
! 121: and LSBFIRST/MSBFIRST
! 122: #define HAVE_GETUSERSHELL ... you could always pull it out of getpwent()
! 123: #define HAVE_SETE[UG]ID ... lib or syscall, it varies on diff platforms
! 124: #define HAVE_STRCHR ... should actually be handled by string/strings
! 125: #define HAVE_PSTAT
! 126: #define HAVE_ST_BLKSIZE ... a stat() thing?
! 127: #define HAVE_IP_TOS
! 128: #define HAVE_STRFTIME ... screw this, we'll just INCLUDE one for lame
! 129: old boxes that don't have it [sunos 3.x, early 4.x?]
! 130: #define HAVE_VFPRINTF
! 131: #define HAVE_SHADOW_PASSWD ... in its multitudinous schemes?? ... how
! 132: about sumpin' like #define SHADOW_PASSWD_TYPE ... could get grody.
! 133: ... looks like sysv /etc/shadow, getspent() family is common.
! 134: #define SIG* ... what a swamp, punt for now; should all be in signal.h
! 135: #define HAVE_STRCSPN ... see larry wall's comment in the fwtk regex code
! 136: #define ULTRIX_AUTH ... bwahaha.
! 137: #define HAVE_YP or NIS or whatever you wanna call it this week
! 138: randomness about VARARGS??
! 139: --- later stuff to be considered ---
! 140: #define UINT4 ... u-int on alpha/osf, i.e. __alpha/__osf__, ulong elsewhere?
! 141: dont name it that, though, it'll conflict with extant .h files like md5
! 142: randomness about machine/endian.h, machine/inline.h -- bsdi, net/2
! 143: randomness about _PATH_WTMP vs WTMP_FILE and where they even live!!
! 144: #define HAVE_SYS_ERRLIST ... whether it's in stdio.h or not [bsd 4.4]
! 145: --- still more stuff
! 146: #define HAVE_SETENV
! 147: #define _PATH_UTMP vs UTMP_FILE, a la deslogind?!
! 148: #define HAVE_DAEMON
! 149: #define HAVE_INETADDR [vixie bind?]
! 150: lseek: SEEK_SET vs L_SET and associated lossage [epi-notes, old 386Mach]
! 151: bsdi: ioctl_compat.h ?
! 152: --- takin' some ifdefs from CNS krb:
! 153: F_GETOWN/F_SETOWN
! 154: CRAY: long = 8 bytes, etc [class with alpha?]
! 155: CGETENT
! 156: SIGINFO
! 157: SIGTSTP SIGTTOU SIGWINCH
! 158: SPX?
! 159: SYSV_TERMIO -- covered elsewhere, I hope
! 160: TIOCEXT TIOCFLUSH TIOC[GS]WINSIZ
! 161: NEWINIT: something about init cleaning up dead login processes [telnet?]
! 162: PARENT_DOES_UTMP, too [telnet]
! 163: VDISCARD
! 164: VEOL/VEOL2/VLNEXT VREPRINT -- termios stuff?, and related...
! 165: STREAMSPTY/STREAMSPTYEM
! 166: AF_INET/AF_UNSPEC, PF_*
! 167: ECHOCTL/ECHOKE
! 168: F_ULOCK [?!]
! 169: setpgrp/getpgrp() ONEARG business..
! 170: HAVE_ALLOCA
! 171: HAVE_GETUTENT
! 172: HAVE_SYS_SELECT_H [irix!]
! 173: HAVE_DIRENT [old 386mach has *direct.h*!]
! 174: HAVE_SIGSET
! 175: HAVE_VFORK_H and HAVE_VFORK
! 176: HAVE_VHANGUP
! 177: HAVE_VSPRINTF
! 178: HAVE_IPTOS_*
! 179: HAVE_STRCASECMP, STRNCASECMP
! 180: HAVE_SYS_FCNTL_H
! 181: HAVE_SYS_TIME_H
! 182: HAVE_UTIMES
! 183: NOTTYENT [?]
! 184: HAVE_FCHMOD
! 185: HAVE_GETUSERSHELL
! 186: HAVE_SIGCONTEXT [stack hair, very machine-specific]
! 187: YYLINENO?
! 188: POSIX_SIGNALS
! 189: POSIX_TERMIOS
! 190: SETPROCTITLE -- breaks some places, like fbsd sendmail
! 191: SIG* -- actual signal names? some are missing
! 192: SIOCGIFCONF
! 193: SO_BROADCAST
! 194: SHMEM [krb tickets]
! 195: VARARGS, or HAVE_VARARGS
! 196: CBAUD
! 197: ... and B300, B9600, etc etc
! 198: HAVE_BZERO vs memset/memcpy
! 199: HAVE_SETVBUF
! 200: HAVE_STRDUP
! 201: HAVE_GETENV
! 202: HAVE_STRSAVE
! 203: HAVE_STBLKSIZE [stat?]
! 204: HAVE_STREAM_H -- in sys/, ref sendmail 8.7 for IP_SRCROUTE
! 205: FCHMOD
! 206: INITGROUPS -- most machines seem to *have*
! 207: SETREUID
! 208: SNPRINTF
! 209: SETPGRP semantics bsd vs. sys5 style
! 210:
! 211: There's also the issue about WHERE various .h files live, sys/ or otherwise.
! 212: There's a BIG swamp lurking where network code of any sort lives.
! 213: */
! 214:
! 215: /* ======================== */
! 216: /* System-specific sections */
! 217: /* ======================== */
! 218:
! 219: /* By turning OFF various bits of the above, you can customize for
! 220: a given platform. Yes, we're ignoring the stock compiler predefines
! 221: and using our own plugged in via the Makefile. */
! 222:
! 223: /* DOS boxes, with MSC; you may need to adapt to a different compiler. */
! 224: /* looks like later ones *do* have dirent.h, for example */
! 225: #ifdef MSDOS
! 226: #undef HAVE_FLOCK
! 227: #undef HAVE_RANDOM
! 228: #undef HAVE_LSTAT
! 229: #undef HAVE_TERMIOS
! 230: #undef UTMPX
! 231: #undef HAVE_SYSINFO
! 232: #undef HAVE_UNISTD_H
! 233: #undef HAVE_DIRENT_H /* unless you have the k00l little wrapper from L5!! */
! 234: #undef HAVE_STRINGS_H
! 235: #undef HAVE_LASTLOG_H
! 236: #undef HAVE_PATHS_H
! 237: #undef HAVE_PARAM_H
! 238: #undef HAVE_SYSMACROS_H
! 239: #undef HAVE_SELECT_H
! 240: #undef HAVE_TTYENT_H
! 241: #endif /* MSDOS */
! 242:
! 243: /* buglix 4.x; dunno about 3.x on down. should be bsd4.2 */
! 244: #ifdef ULTRIX
! 245: #undef UTMPX
! 246: #undef HAVE_PATHS_H
! 247: #undef HAVE_SYSMACROS_H
! 248: #undef HAVE_SELECT_H
! 249: #endif /* buglix */
! 250:
! 251: /* some of this might still be broken on older sunoses */
! 252: #ifdef SUNOS
! 253: #undef VOID_MALLOC
! 254: #undef UTMPX
! 255: #undef HAVE_PATHS_H
! 256: #undef HAVE_SELECT_H
! 257: #endif /* sunos */
! 258:
! 259: /* "contact your vendor for a fix" */
! 260: #ifdef SOLARIS
! 261: /* has UTMPX */
! 262: #undef HAVE_RANDOM
! 263: #undef HAVE_SETPRIORITY
! 264: #undef HAVE_STRINGS_H /* this is genuinely the case, go figure */
! 265: #undef HAVE_PATHS_H
! 266: #undef HAVE_SELECT_H
! 267: #undef HAVE_TTYENT_H
! 268: #endif /* SOLARIS */
! 269:
! 270: /* whatever aix variant MIT had at the time; 3.2.x?? */
! 271: #ifdef AIX
! 272: #undef UTMPX
! 273: #undef HAVE_LASTLOG_H
! 274: #define HAVE_LOGIN_H /* "special", in the educational sense */
! 275: #endif /* aix */
! 276:
! 277: /* linux, which is trying as desperately as the gnu folks can to be
! 278: POSIXLY_CORRECT. I think I'm gonna hurl... */
! 279: #ifdef LINUX
! 280: #undef UTMPX
! 281: #undef HAVE_SYSINFO
! 282: #undef HAVE_SELECT_H
! 283: #undef HAVE_TTYENT_H
! 284: #endif /* linux */
! 285:
! 286: /* irix 5.x; may not be correct for earlier ones */
! 287: #ifdef IRIX
! 288: /* wow, does irix really have everything?! */
! 289: #endif /* irix */
! 290:
! 291: /* osf on alphas */
! 292: #ifdef OSF
! 293: #undef UTMPX
! 294: #undef HAVE_SELECT_H
! 295: #endif /* osf */
! 296:
! 297: /* they's some FUCKED UP paths in this one! */
! 298: #ifdef FREEBSD
! 299: #undef UTMPX
! 300: #undef HAVE_SYSINFO
! 301: #undef HAVE_LASTLOG_H
! 302: #undef HAVE_SYSMACROS_H
! 303: #undef HAVE_SELECT_H /* actually a lie, but only for kernel */
! 304: #endif /* freebsd */
! 305:
! 306: /* Originally from the sidewinder site, of all places, but subsequently
! 307: checked further under a more normal bsdi 2.0 */
! 308: #ifdef BSDI
! 309: #undef UTMPX
! 310: #undef HAVE_LASTLOG_H
! 311: #undef HAVE_SYSMACROS_H
! 312: /* and their malloc.h was in sys/ ?! */
! 313: #undef HAVE_SELECT_H
! 314: #endif /* bsdi */
! 315:
! 316: /* netbsd/44lite, jives with amiga-netbsd from cactus */
! 317: #ifdef NETBSD
! 318: #undef UTMPX
! 319: #undef HAVE_SYSINFO
! 320: #undef HAVE_LASTLOG_H
! 321: #undef HAVE_SELECT_H
! 322: #endif /* netbsd */
! 323:
! 324: /* Hpux 9.0x, from BBN and various patches sent in */
! 325: #ifdef HPUX
! 326: #undef HAVE_RANDOM /* but *does* have ?rand48 -- need to consider.. */
! 327: #undef HAVE_UTMPX
! 328: #undef HAVE_LASTLOG_H /* has utmp/wtmp/btmp nonsense, and pututline() */
! 329: #undef HAVE_PATHS_H
! 330: #undef HAVE_SELECT_H
! 331: #undef HAVE_TTYENT_H
! 332: #endif /* hockeypux */
! 333:
! 334: /* Unixware [a loose definition of "unix", to be sure], 1.1.2 [at least]
! 335: from Brian Clapper. He wasn't sure about 2.0... */
! 336: #ifdef UNIXWARE
! 337: /* has UTMPX */
! 338: #undef HAVE_SETPRIORITY
! 339: /* NOTE: UnixWare does provide the BSD stuff, in "/usr/ucbinclude" (headers)
! 340: and "/usr/ucblib" (libraries). However, I've run into problems linking
! 341: stuff out of that version of the C library, when objects are also coming
! 342: out of the "regular" C library. My advice: Avoid the BSD compatibility
! 343: stuff wherever possible. Brian Clapper <bmc@telebase.com> */
! 344: #undef HAVE_STRINGS_H
! 345: #undef HAVE_PATHS_H
! 346: #undef HAVE_TTYENT_H
! 347: #endif /* UNIXWARE */
! 348:
! 349: /* A/UX 3.1.x from darieb@sandia.gov */
! 350: #ifdef AUX
! 351: #undef HAVE_RANDOM
! 352: #undef HAVE_SELECT_H /* xxx: untested */
! 353: #endif /* a/ux */
! 354:
! 355: /* NeXTSTEP 3.2 motorola mudge@l0pht.com xxx should also work with
! 356: white hardware and Sparc/HPPA. Should work with 3.3 too as it's
! 357: 4.3 / 4.4 bsd wrapped around mach */
! 358: #ifdef NEXT
! 359: #undef UTMPX
! 360: #undef HAVE_SELECT_X
! 361: #endif /* NeXTSTEP 3.2 motorola */
! 362:
! 363: /* Make some "generic" assumptions if all else fails */
! 364: #ifdef GENERIC
! 365: #undef HAVE_FLOCK
! 366: #if defined(SYSV) && (SYSV < 4) /* TW leftover: old SV doesnt have symlinks */
! 367: #undef HAVE_LSTAT
! 368: #endif /* old SYSV */
! 369: #undef HAVE_TERMIOS
! 370: #undef UTMPX
! 371: #undef HAVE_PATHS_H
! 372: #undef HAVE_SELECT_H
! 373: #endif /* generic */
! 374:
! 375: /* ================ */
! 376: #endif /* GENERIC_H */
! 377:
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