607 lines
18 KiB
Plaintext
607 lines
18 KiB
Plaintext
/* sysh.unx
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The header file for the UNIX system dependent routines.
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Copyright (C) 1991, 1992 Ian Lance Taylor
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This file is part of the Taylor UUCP package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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The author of the program may be contacted at ian@airs.com or
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c/o AIRS, P.O. Box 520, Waltham, MA 02254.
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$Log: sysh.unx,v $
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Revision 1.1.1.1 1993/03/21 09:45:37 cgd
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initial import of 386bsd-0.1 sources
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Revision 1.53 1992/03/30 15:29:58 ian
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Added HAVE_SVR4_LOCKFILES
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Revision 1.52 1992/03/16 01:23:08 ian
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Make blocking writes optional
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Revision 1.51 1992/03/15 07:15:42 ian
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T. William Wells: don't use unblocked writes
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Revision 1.50 1992/03/15 04:51:17 ian
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Keep an array of signals we've received rather than a single variable
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Revision 1.49 1992/03/15 01:54:46 ian
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All execs are now done in isspawn, all waits are done in iswait
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Revision 1.48 1992/03/12 21:52:21 ian
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Corrected readdir prototype
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Revision 1.47 1992/03/11 22:06:37 ian
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Marty Shannon: added max-uuxqts command
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Revision 1.46 1992/03/11 02:09:57 ian
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Franc,ois Pinard: retry fork several times before giving up
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Revision 1.45 1992/03/11 00:18:50 ian
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Save temporary file if file send fails
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Revision 1.44 1992/03/10 17:39:57 ian
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Some systems don't permit both <termios.h> and <sys/ioctl.h> to be included
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Revision 1.43 1992/03/09 22:07:36 ian
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Wait for terminal output to drain at various points
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Revision 1.42 1992/03/03 21:01:20 ian
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Use strict timeout in fsserial_read, eliminate all race conditions
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Revision 1.41 1992/03/02 04:53:07 ian
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Marc Unangst: added HAVE_SCO_LOCKFILES configuration parameter
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Revision 1.40 1992/02/29 01:06:59 ian
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Chip Salzenberg: recheck file permissions before sending
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Revision 1.39 1992/02/28 05:06:15 ian
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T. William Wells: fsysdep_catch must be a macro
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Revision 1.38 1992/02/27 05:40:54 ian
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T. William Wells: detach from controlling terminal, handle signals safely
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Revision 1.37 1992/02/23 03:26:51 ian
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Overhaul to use automatic configure shell script
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Revision 1.36 1992/02/20 04:18:59 ian
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Added uustat
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Revision 1.35 1992/02/09 05:10:50 ian
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Added HAVE_MKDIR configuration parameter and mkdir emulation
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Revision 1.34 1992/02/09 03:14:48 ian
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Added HAVE_OLD_DIRECTORIES for systems without readdir routines
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Revision 1.33 1992/02/09 02:41:58 ian
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Added HAVE_DUP2 configuration parameter and dup2 emulation function
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Revision 1.32 1992/02/08 23:34:41 ian
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If we have neither getcwd nor getwd, fork /bin/pwd to get the cwd
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Revision 1.31 1992/02/08 20:02:36 ian
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Added HAVE_SETRET configuration option for systems without setjmp
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Revision 1.30 1992/02/08 03:54:18 ian
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Include <string.h> only in <uucp.h>, added 1992 copyright
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Revision 1.29 1992/01/15 21:06:11 ian
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Mike Park: some systems can't include <sys/time.h> and <time.h> together
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Revision 1.28 1992/01/15 19:40:35 ian
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Mike Park: handle HAVE_UNION_WAIT correctly and completely
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Revision 1.27 1992/01/15 07:06:29 ian
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Set configuration directory in Makefile rather than sysdep.h
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Revision 1.26 1992/01/14 04:18:47 ian
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Chip Salzenberg: added HAVE_USLEEP configuration parameter
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Revision 1.25 1992/01/13 19:59:29 ian
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Define LIBDIR in Makefile rather than in sysh.unx
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Revision 1.24 1992/01/13 05:55:59 ian
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Touched up a few comments
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Revision 1.23 1992/01/13 05:53:04 ian
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Mike Park: added HAVE_WAITPID and HAVE_WAIT4 configuration parameters
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Revision 1.22 1992/01/11 17:11:11 ian
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Hannu Strang: avoid compiler bug by not using -> in address constant
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Revision 1.21 1992/01/04 21:43:24 ian
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Chip Salzenberg: added ALLOW_FILENAME_ARGUMENTS to permit them
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Revision 1.20 1991/12/29 00:55:23 ian
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Monty Solomon: added HAVE_UNION_WAIT
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Revision 1.19 1991/12/28 17:08:47 ian
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John Theus: offer HAVE_GETWD as an alternative to using getcwd
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Revision 1.18 1991/12/28 07:01:15 ian
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Added HAVE_FTIME configuration option
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Revision 1.17 1991/12/22 22:14:19 ian
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Monty Solomon: added HAVE_UNISTD_H configuration parameter
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Revision 1.16 1991/12/19 04:25:57 ian
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Terry Gardner: configuration parameter to not use both NONBLOCK and NDELAY
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Revision 1.15 1991/12/17 07:09:58 ian
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Record statistics in fractions of a second
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Revision 1.14 1991/12/11 04:21:37 ian
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Arne Ludwig: merge in Arne Ludwig's patches for V2 and BNU style logging
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Revision 1.13 1991/12/09 19:07:07 ian
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Richard Todd: add HAVE_V2_LOCKFILES--binary number in lock file
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Revision 1.12 1991/11/30 23:28:26 ian
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Marty Shannon: some systems need a fake version of the rename system call
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Revision 1.11 1991/11/26 01:45:42 ian
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Marty Shannon: configuration option to not include <sys/wait.h>
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Revision 1.10 1991/11/24 04:15:13 ian
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Removed extraneous comment left by last revision
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Revision 1.9 1991/11/21 21:49:38 ian
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Brian Campbell: define all macros to avoid compiler warnings
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Revision 1.8 1991/11/21 21:07:46 ian
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Brian Campbell: offer ltrunc as an alternative to ftruncate
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Revision 1.7 1991/11/10 19:24:22 ian
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Added pffile protocol entry point for file level control
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Revision 1.6 1991/11/08 22:52:34 ian
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Brian Campbell: only include <sys/time.h> and <sys/ioctl.h> when needed
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Revision 1.5 1991/11/08 22:11:45 ian
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Brian Campbell: allow sigsetjmp as configuration option
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Revision 1.4 1991/11/07 19:32:28 ian
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Chip Salzenberg: allow LOCKDIR, and check that locking process exists
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Revision 1.3 1991/09/19 16:15:58 ian
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Chip Salzenberg: configuration option for permitting execution via sh
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Revision 1.2 1991/09/19 03:06:04 ian
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Chip Salzenberg: put BNU temporary files in system's directory
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Revision 1.1 1991/09/10 19:45:50 ian
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Initial revision
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*/
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#ifndef SYSH_UNX_H
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#define SYSH_UNX_H
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/* We're might redefine fsysdep_catch, so make sure we've gotten the
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prototype already. */
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#ifndef SYSTEM_H
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#include "system.h"
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#endif
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/* Make sure the defines do not conflict. These are in this file
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because they are Unix dependent. */
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#if HAVE_V2_LOCKFILES + HAVE_BNU_LOCKFILES + HAVE_SCO_LOCKFILES + HAVE_SVR4_LOCKFILES != 1
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#error LOCKFILES define not set or duplicated
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#endif
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/* SCO and SVR4 lockfiles are basically just like BNU lockfiles. */
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#if HAVE_SCO_LOCKFILES || HAVE_SVR4_LOCKFILES
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#undef HAVE_BNU_LOCKFILES
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#define HAVE_BNU_LOCKFILES 1
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#endif
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#if HAVE_BSD_TTY + HAVE_SYSV_TERMIO + HAVE_POSIX_TERMIOS != 1
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#error Terminal driver define not set or duplicated
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#endif
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#if SPOOLDIR_V2 + SPOOLDIR_BSD42 + SPOOLDIR_BSD43 + SPOOLDIR_BNU + SPOOLDIR_ULTRIX + SPOOLDIR_TAYLOR != 1
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#error Spool directory define not set or duplicated
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#endif
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/* On Unix, binary files are the same as text files. */
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#define BINREAD "r"
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#define BINWRITE "w"
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/* If we have sigaction, we can force system calls to not be
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restarted. */
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#if HAVE_SIGACTION
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#undef HAVE_RESTARTABLE_SYSCALLS
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#define HAVE_RESTARTABLE_SYSCALLS 0
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#endif
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/* If we have sigvec and SV_INTERRUPT is defined, we can force system
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calls to not be restarted (signal.h is included by uucp.h before
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this point, so SV_INTERRUPT will be defined by now if it it ever
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is). */
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#if HAVE_SIGVEC
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#ifdef SV_INTERRUPT
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#undef HAVE_RESTARTABLE_SYSCALLS
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#define HAVE_RESTARTABLE_SYSCALLS 0
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#endif
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#endif
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/* We don't handle sigset in combination with restartable system
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calls, so we check for it although this combination will never
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happen. */
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#if ! HAVE_SIGACTION && ! HAVE_SIGVEC && HAVE_SIGSET
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#if HAVE_RESTARTABLE_SYSCALLS
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#undef HAVE_SIGSET
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#define HAVE_SIGSET 0
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#endif
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#endif
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/* If we don't have restartable system calls, we can ignore
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fsysdep_catch, usysdep_start_catch and usysdep_end_catch.
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Otherwise fsysdep_catch has to do a setjmp. */
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#if ! HAVE_RESTARTABLE_SYSCALLS
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#define fsysdep_catch() (TRUE)
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#define usysdep_start_catch()
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#define usysdep_end_catch()
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#define CATCH_PROTECT
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#else /* HAVE_RESTARTABLE_SYSCALLS */
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#if HAVE_SETRET && ! HAVE_SIGSETJMP
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#include <setret.h>
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#define setjmp setret
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#define longjmp longret
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#define jmp_buf ret_buf
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#else /* ! HAVE_SETRET || HAVE_SIGSETJMP */
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#include <setjmp.h>
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#if HAVE_SIGSETJMP
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#undef setjmp
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#undef longjmp
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#undef jmp_buf
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#define setjmp(s) sigsetjmp ((s), TRUE)
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#define longjmp siglongjmp
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#define jmp_buf sigjmp_buf
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#endif /* HAVE_SIGSETJMP */
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#endif /* ! HAVE_SETRET || HAVE_SIGSETJMP */
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extern volatile sig_atomic_t fSjmp;
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extern volatile jmp_buf sSjmp_buf;
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#define fsysdep_catch() (setjmp (sSjmp_buf) == 0)
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#define usysdep_start_catch() (fSjmp = TRUE)
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#define usysdep_end_catch() (fSjmp = FALSE)
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#define CATCH_PROTECT volatile
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#endif /* HAVE_RESTARTABLE_SYSCALLS */
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/* Get definitions for the terminal driver. */
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#if HAVE_BSD_TTY
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#include <sgtty.h>
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typedef struct sgttyb sterminal;
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#define fgetterminfo(o, q) (ioctl ((o), TIOCGETP, (q)) == 0)
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#define fsetterminfo(o, q) (ioctl ((o), TIOCSETN, (q)) == 0)
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#define fsetterminfodrain(o, q) (ioctl ((o), TIOCSETP, (q)) == 0)
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#endif /* HAVE_BSD_TTY */
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#if HAVE_SYSV_TERMIO
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#include <termio.h>
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typedef struct termio sterminal;
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#define fgetterminfo(o, q) (ioctl ((o), TCGETA, (q)) == 0)
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#define fsetterminfo(o, q) (ioctl ((o), TCSETA, (q)) == 0)
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#define fsetterminfodrain(o, q) (ioctl ((o), TCSETAW, (q)) == 0)
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#endif /* HAVE_SYSV_TERMIO */
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#if HAVE_POSIX_TERMIOS
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#include <termios.h>
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typedef struct termios sterminal;
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#define fgetterminfo(o, q) (tcgetattr ((o), (q)) == 0)
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#define fsetterminfo(o, q) (tcsetattr ((o), TCSANOW, (q)) == 0)
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#define fsetterminfodrain(o, q) (tcsetattr ((o), TCSADRAIN, (q)) == 0)
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/* On some systems it is not possible to include both <sys/ioctl.h>
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and <termios.h> in the same source files; I don't really know why.
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On such systems, we pretend that we don't have <sys/ioctl.h>. */
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#if ! HAVE_TERMIOS_AND_SYS_IOCTL_H
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#undef HAVE_SYS_IOCTL_H
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#define HAVE_SYS_IOCTL_H 0
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#endif
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#endif /* HAVE_POSIX_TERMIOS */
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/* The root directory (this is needed by the system independent stuff
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as the default for local-send). */
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#define ZROOTDIR "/"
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/* The name of the execution directory within the spool directory
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(this is need by the system independent uuxqt.c). */
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#define XQTDIR ".Xqtdir"
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/* The name of the directory in which we preserve file transfers that
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failed. */
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#define PRESERVEDIR ".Preserve"
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#if HAVE_TAYLOR_CONFIG
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/* The names of the configuration files. These are appended to
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NEWCONFIGLIB which is defined in Makefile. */
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#define CONFIGFILE "/config"
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#define SYSFILE "/sys"
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#define PORTFILE "/port"
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#define DIALFILE "/dial"
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#define CALLFILE "/call"
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#define PASSWDFILE "/passwd"
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#define DIALCODEFILE "/dialcode"
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#endif /* HAVE_TAYLOR_CONFIG */
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#if HAVE_V2_CONFIG
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/* The names of the various V2 configuration files. These are
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appended to OLDCONFIGLIB which is defined in Makefile. */
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#define V2_SYSTEMS "/L.sys"
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#define V2_DEVICES "/L-devices"
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#define V2_USERFILE "/USERFILE"
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#define V2_CMDS "/L.cmds"
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#define V2_DIALCODES "/L-dialcodes"
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#endif /* HAVE_V2_CONFIG */
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#if HAVE_BNU_CONFIG
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/* The names of the BNU configuration files. These are appended to
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OLDCONFIGLIB which is defined in Makefile. */
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#define BNU_SYSFILES "/Sysfiles"
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#define BNU_SYSTEMS "/Systems"
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#define BNU_PERMISSIONS "/Permissions"
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#define BNU_DIALERS "/Dialers"
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#define BNU_DEVICES "/Devices"
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#define BNU_PERMISSIONS "/Permissions"
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#define BNU_DIALCODES "/Dialcodes"
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#define BNU_MAXUUXQTS "/Maxuuxqts"
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#endif /* HAVE_BNU_CONFIG */
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/* Get some standard definitions. */
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#include <sys/types.h>
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#include <sys/stat.h>
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/* Get definitions for the file permission bits. */
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#ifndef S_IRUSR
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#define S_IRWXU 0700
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#define S_IRUSR 0400
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#define S_IWUSR 0200
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#define S_IXUSR 0100
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#define S_IRWXG 0070
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#define S_IRGRP 0040
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#define S_IWGRP 0020
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#define S_IXGRP 0010
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#define S_IRWXO 0007
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#define S_IROTH 0004
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#define S_IWOTH 0002
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#define S_IXOTH 0001
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#endif /* ! defined (S_IRUSR) */
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#ifndef S_ISDIR
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#ifdef S_IFDIR
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#define S_ISDIR(i) (((i) & S_IFMT) == S_IFDIR)
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#else /* ! defined (S_IFDIR) */
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#define S_ISDIR(i) (((i) & 0170000) == 040000)
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#endif /* ! defined (S_IFDIR) */
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#endif /* ! defined (S_ISDIR) */
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/* We create files with these modes (should this be configurable?). */
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#define IPRIVATE_FILE_MODE (S_IRUSR | S_IWUSR)
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#define IPUBLIC_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
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/* We create directories with this mode (should this be configurable?). */
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#define IDIRECTORY_MODE (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
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#define IPUBLIC_DIRECTORY_MODE (S_IRWXU | S_IRWXG | S_IRWXO)
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#if ! HAVE_OPENDIR
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/* Define some structures to use if we don't have opendir, etc. These
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will only work if we have the old Unix filesystem, with a 2 byte
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inode and a 14 byte filename. */
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#include <sys/dir.h>
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struct dirent
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{
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char d_name[DIRSIZ + 1];
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};
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typedef struct
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{
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int o;
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struct dirent s;
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} DIR;
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extern DIR *opendir P((const char *zdir));
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extern struct dirent *readdir P((DIR *));
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extern int closedir P((DIR *));
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#endif /* ! HAVE_OPENDIR */
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/* Information we need for a UNIX serial port. */
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struct ssysdep_serial_port
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{
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/* File descriptor to read from. */
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int oread;
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/* Whether the read descriptor is blocking. */
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boolean fread_blocking;
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/* File descriptor to write to. */
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int owrite;
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/* Whether the write descriptor is blocking. */
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boolean fwrite_blocking;
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/* Whether setting the read descriptor to blocking affects the write
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descriptor and vice-versa. */
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boolean fblock_both;
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/* Hold the real read descriptor when using a dialer device. */
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int oholdread;
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/* Hold the real write descriptor when using a dialer device. */
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int oholdwrite;
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/* TRUE if this is a terminal and the remaining fields are valid. */
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boolean fterminal;
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/* Baud rate. */
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long ibaud;
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/* Original terminal settings. */
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sterminal sorig;
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/* New terminal settings (raw mode, etc.). */
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sterminal snew;
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};
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/* Information we need for a UNIX stdin port. */
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struct ssysdep_stdin_port
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{
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struct ssysdep_serial_port s;
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boolean fpty;
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};
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/* For debugging it is helpful to know whether we are connected
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through a pty; the fsserial_read routine uses this information to
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know whether to sleep or not. */
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#define SYSDEP_STDIN_CMDS(s) \
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{ "pty", CMDTABTYPE_BOOLEAN, (pointer) &(s).fpty, NULL }
|
||
|
||
#define SYSDEP_STDIN_INIT(q) ((q)->fpty = FALSE, (q)->s.oread = -1)
|
||
|
||
/* Information we need for a UNIX modem port. */
|
||
|
||
struct ssysdep_modem_port
|
||
{
|
||
struct ssysdep_serial_port s;
|
||
};
|
||
|
||
#define SYSDEP_MODEM_INIT(q) ((q)->s.oread = -1)
|
||
|
||
/* Information we need for a UNIX direct port. */
|
||
|
||
struct ssysdep_direct_port
|
||
{
|
||
struct ssysdep_serial_port s;
|
||
};
|
||
|
||
#define SYSDEP_DIRECT_INIT(q) ((q)->s.oread = -1)
|
||
|
||
/* Set a signal handler. */
|
||
extern void usset_signal P((int isig, SIGtype (*pfn) P((int)),
|
||
boolean fforce, boolean *pfignored));
|
||
|
||
/* Default signal handler. This sets the appropriate element of the
|
||
afSignal array. If system calls are automatically restarted, it
|
||
may do a longjmp to an fsysdep_catch. */
|
||
extern SIGtype ussignal P((int isig));
|
||
|
||
/* Try to fork, repeating several times. */
|
||
extern pid_t isfork P((void));
|
||
|
||
/* Spawn a job. Returns the process ID of the spawned job or -1 on
|
||
error. The following macros may be passed in aidescs. */
|
||
|
||
/* Set descriptor to /dev/null. */
|
||
#define SPAWN_NULL (-1)
|
||
/* Set element of aidescs to a pipe for caller to read from. */
|
||
#define SPAWN_READ_PIPE (-2)
|
||
/* Set element of aidescs to a pipe for caller to write to. */
|
||
#define SPAWN_WRITE_PIPE (-3)
|
||
|
||
extern pid_t isspawn P((const char **pazargs, int *aidescs,
|
||
boolean fkeepuid, boolean fkeepenv,
|
||
const char *zchdir, boolean fnosigs,
|
||
boolean fshell, const char *zpath,
|
||
const char *zuu_machine,
|
||
const char *zuu_user));
|
||
|
||
/* Do a form of popen using isspawn. */
|
||
extern FILE *espopen P((const char **pazargs, boolean frd,
|
||
pid_t *pipid));
|
||
|
||
/* Wait for a particular process to finish, returning the exit status.
|
||
The process ID should be pid_t, but we can't put that in a
|
||
prototype. */
|
||
extern int iswait P((unsigned long ipid, const char *zreport));
|
||
|
||
/* Lock a string. */
|
||
extern boolean fsdo_lock P((const char *, boolean fspooldir));
|
||
|
||
/* Unlock a string. */
|
||
extern boolean fsdo_unlock P((const char *, boolean fspooldir));
|
||
|
||
/* See whether a directory exists. */
|
||
extern boolean fsdirectory_exists P((const char *));
|
||
|
||
/* Expand a leading tilde to the public directory or a user's home
|
||
directory. Each system may have a different public directory, so
|
||
the system information must be passed in. */
|
||
extern const char *zstilde_expand P((const struct ssysteminfo *qsys,
|
||
const char *zfile));
|
||
|
||
/* Check access for a particular user name, or NULL to check access
|
||
for any user. */
|
||
extern boolean fsuser_access P((const struct stat *, int imode,
|
||
const char *zuser));
|
||
|
||
/* Copy a string to the common static buffer. */
|
||
extern const char *zscopy P((const char *z));
|
||
|
||
/* Prepend a directory to a file name, returning the common static
|
||
buffer. */
|
||
extern const char *zsappend P((const char *zdir, const char *zfile));
|
||
|
||
/* Get a temporary file name. */
|
||
extern const char *zstemp_file P((const struct ssysteminfo *qsys));
|
||
|
||
/* Get a jobid from a system and file name. */
|
||
extern const char *zsfile_to_jobid P((const struct ssysteminfo *qsys,
|
||
const char *zfile));
|
||
|
||
/* Get a file name from a jobid. This also returns the associated system
|
||
in *pzsystem. */
|
||
extern const char *zsjobid_to_file P((const char *zid,
|
||
const char **pzsystem));
|
||
|
||
#if SPOOLDIR_ULTRIX
|
||
/* See whether there is a spool directory for a system. */
|
||
extern boolean fsultrix_has_spool P((const char *zsystem));
|
||
#endif /* SPOOLDIR_ULTRIX */
|
||
|
||
/* The working directory from which the program was run (this is set
|
||
by usysdep_initialize if called with fgetcwd TRUE). */
|
||
extern char *zScwd;
|
||
|
||
/*
|
||
Local variables:
|
||
mode:c
|
||
End:
|
||
*/
|
||
#endif /* ! defined (SYSH_UNX_H) */
|