NetBSD/gnu/libexec/uucp/sysh.unx

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