/* -*-C-*-
$Id: ux.h,v 1.74 2000/12/05 21:23:48 cph Exp $
Copyright (c) 1988-2000 Massachusetts Institute of Technology
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.
*/
/* Unix system include file */
#ifndef SCM_UX_H
#define SCM_UX_H
#define SYSTEM_NAME "unix"
#ifdef __386BSD__
# define SYSTEM_VARIANT "386BSD"
#endif
#ifdef _AIX
# define SYSTEM_VARIANT "AIX"
#endif
#ifdef apollo
# define SYSTEM_VARIANT "Domain"
#endif
#ifdef __bsdi__ /* works on bsdi 3.0 */
# define SYSTEM_VARIANT "BSDI BSD/OS"
#endif
#ifdef __FreeBSD__
# define SYSTEM_VARIANT "FreeBSD"
#endif
#if defined(__hpux) || defined(hpux)
# define SYSTEM_VARIANT "HP/UX"
#endif
#if defined(_IRIX) || defined(_IRIX4) || defined(_IRIX6)
# define SYSTEM_VARIANT "Irix"
#endif
#ifdef __linux__
# define SYSTEM_VARIANT "GNU/Linux"
#endif
#ifdef _NEXTOS
# define SYSTEM_VARIANT "NeXT"
#endif
#ifdef __osf__
# define SYSTEM_VARIANT "OSF"
#endif
#ifdef _PIXEL
# define SYSTEM_VARIANT "Pixel"
#endif
#if defined(_SUNOS) || defined(_SUNOS3) || defined(_SUNOS4)
# define SYSTEM_VARIANT "SunOS"
#endif
#ifdef _ULTRIX
# define SYSTEM_VARIANT "Ultrix"
#endif
#ifndef SYSTEM_VARIANT
# define SYSTEM_VARIANT "unknown"
#endif
#include "config.h"
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/times.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
/* GNU C library defines environ if __USE_GNU is defined. */
#ifndef __USE_GNU
extern char ** environ;
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#else
# ifndef HAVE_STRCHR
# define strchr index
# define strrchr rindex
# endif
extern char * strchr ();
extern char * strrchr ();
# ifndef HAVE_MEMCPY
# define memcpy(d, s, n) bcopy ((s), (d), (n))
# define memmove(d, s, n) bcopy ((s), (d), (n))
# endif
#endif
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#else
extern int EXFUN (ioctl, (int, unsigned long, ...));
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#else
extern int EXFUN (open, (CONST char *, int, ...));
#endif
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#else
# ifndef WIFEXITED
# define WIFEXITED(_X) (((_X) & 0x00FF) == 0)
# endif
# ifndef WIFSTOPPED
# define WIFSTOPPED(_X) (((_X) & 0x00FF) == 0x007F)
# endif
# ifndef WIFSIGNALED
# define WIFSIGNALED(_X) \
((((_X) & 0x00FF) != 0) && (((_X) & 0x00FF) != 0x007F))
# endif
# ifndef WEXITSTATUS
# define WEXITSTATUS(_X) (((_X) & 0xFF00) >> 8)
# endif
# ifndef WTERMSIG
# define WTERMSIG(_X) ((_X) & 0x007F)
# endif
# ifndef WSTOPSIG
# define WSTOPSIG(_X) (((_X) & 0xFF00) >> 8)
# endif
extern pid_t EXFUN (wait, (int *));
# ifdef HAVE_WAITPID
extern pid_t EXFUN (waitpid, (pid_t, int *, int));
# endif
# ifdef HAVE_WAIT3
extern pid_t EXFUN (wait3, (int *, int, struct rusage *));
# endif
#endif
#ifndef WUNTRACED
# define WUNTRACED 0
#endif
#ifdef HAVE_DIRENT_H
# include <dirent.h>
# define NAMLEN(_D) (strlen ((_D) -> d_name))
#else
# define dirent direct
# define NAMLEN(_D) (strlen ((_D) -> d_namlen))
# ifdef HAVE_SYS_NDIR_H
# include <sys/ndir.h>
# endif
# ifdef HAVE_SYS_DIR_H
# include <sys/dir.h>
# endif
# ifdef HAVE_NDIR_H
# include <ndir.h>
# endif
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifdef HAVE_UTIME_H
# include <utime.h>
#else
/* It's really there. */
struct utimbuf
{
time_t actime;
time_t modtime;
};
extern int EXFUN (utime, (CONST char *, struct utimbuf *));
#endif
#ifdef HAVE_TERMIOS_H
# include <termios.h>
#else
# ifdef HAVE_TERMIO_H
# include <termio.h>
# else
# ifdef HAVE_SGTTY_H
# include <sgtty.h>
# endif
# endif
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#if defined(HAVE_SOCKET) && defined(HAVE_GETHOSTBYNAME) && defined(HAVE_GETHOSTNAME)
# define HAVE_SOCKETS
# include <sys/socket.h>
# include <netinet/in.h>
# include <netdb.h>
# ifdef HAVE_SYS_UN_H
# include <sys/un.h>
# ifdef AF_UNIX
# define HAVE_UNIX_SOCKETS
# endif
# endif
#endif
#ifdef HAVE_SYS_PTYIO_H
#include <sys/ptyio.h>
#endif
#ifdef HAVE_BSDTTY_H
#include <bsdtty.h>
#endif
#ifdef HAVE_STROPTS_H
#include <stropts.h>
#endif
#include "intext.h"
#include "dstack.h"
#include "osscheme.h"
#include "syscall.h"
typedef RETSIGTYPE Tsignal_handler_result;
typedef RETSIGTYPE (*Tsignal_handler) ();
#ifdef VOID_SIGNAL_HANDLERS
# define SIGNAL_HANDLER_RETURN() return
#else
# define SIGNAL_HANDLER_RETURN() return (0)
#endif
/* Crufty, but it will work here. */
#ifndef ENOSYS
# define ENOSYS 0
#endif
#ifndef SIG_ERR
# define SIG_ERR ((Tsignal_handler) (-1))
#endif
#if !defined(SIGCHLD) && defined(SIGCLD)
# define SIGCHLD SIGCLD
#endif
#if !defined(SIGABRT) && defined(SIGIOT)
# define SIGABRT SIGIOT
#endif
/* Provide null defaults for all the signals we're likely to use so we
aren't continually testing to see if they're defined. */
#ifndef SIGLOST
# define SIGLOST 0
#endif
#ifndef SIGWINCH
# define SIGWINCH 0
#endif
#ifndef SIGWINDOW
# define SIGWINDOW 0
#endif
#ifndef SIGXCPU
# define SIGXCPU 0
#endif
#ifndef SIGXFSZ
# define SIGXFSZ 0
#endif
#ifndef SIGURG
# define SIGURG 0
#endif
#ifndef SIGIO
# define SIGIO 0
#endif
#ifndef SIGUSR1
# define SIGUSR1 0
#endif
#ifndef SIGUSR2
# define SIGUSR2 0
#endif
#ifndef SIGVTALRM
# define SIGVTALRM 0
#endif
#ifndef SIGABRT
# define SIGABRT 0
#endif
#ifndef SIGPWR
# define SIGPWR 0
#endif
#ifndef SIGPROF
# define SIGPROF 0
#endif
#ifndef SIGSTOP
# define SIGSTOP 0
#endif
#ifndef SIGTSTP
# define SIGTSTP 0
#endif
#ifndef SIGCONT
# define SIGCONT 0
#endif
#ifndef SIGCHLD
# define SIGCHLD 0
#endif
#ifndef SIGTTIN
# define SIGTTIN 0
#endif
#ifndef SIGTTOU
# define SIGTTOU 0
#endif
#ifndef SIGBUS
# define SIGBUS 0
#endif
#ifndef SIGEMT
# define SIGEMT 0
#endif
#ifndef SIGSYS
# define SIGSYS 0
#endif
/* constants for access() */
#ifndef R_OK
# define R_OK 4
# define W_OK 2
# define X_OK 1
# define F_OK 0
#endif
#ifndef MAXPATHLEN
# define MAXPATHLEN 1024
#endif
#ifdef HAVE_STDC
# define ALERT_CHAR '\a'
# define ALERT_STRING "\a"
#else
# define ALERT_CHAR '\007'
# define ALERT_STRING "\007"
#endif
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
# define STDOUT_FILENO 1
# define STDERR_FILENO 2
#endif
/* constants for open() and fcntl() */
#ifndef O_RDONLY
# define O_RDONLY 0
# define O_WRONLY 1
# define O_RDWR 2
#endif
/* mode bit definitions for open(), creat(), and chmod() */
#ifndef S_IRWXU
# define S_IRWXU 0700
# define S_IRWXG 0070
# define S_IRWXO 0007
#endif
#ifndef S_IRUSR
# define S_IRUSR 0400
# define S_IWUSR 0200
# define S_IXUSR 0100
# define S_IRGRP 0040
# define S_IWGRP 0020
# define S_IXGRP 0010
# define S_IROTH 0004
# define S_IWOTH 0002
# define S_IXOTH 0001
#endif
#define MODE_REG (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
#define MODE_DIR (MODE_REG | S_IXUSR | S_IXGRP | S_IXOTH)
/* constants for lseek() */
#ifndef SEEK_SET
# define SEEK_SET 0
# define SEEK_CUR 1
# define SEEK_END 2
#endif
#ifdef HAVE_GETLOGIN
# ifndef HAVE_UNISTD_H
extern char * EXFUN (getlogin, (void));
# endif
#endif
#ifndef STDC_HEADERS
# ifndef HAVE_MALLOC_H
extern PTR EXFUN (malloc, (size_t));
extern PTR EXFUN (realloc, (PTR, size_t));
# endif
extern char * EXFUN (getenv, (CONST char *));
#endif
#define UX_abort abort
#define UX_accept accept
#define UX_access access
#define UX_alarm alarm
#define UX_bind bind
#define UX_chdir chdir
#define UX_chmod chmod
#define UX_close close
#define UX_connect connect
#define UX_ctime ctime
#define UX_dup dup
#define UX_fcntl fcntl
#define UX_free free
#define UX_fstat fstat
#define UX_fstatfs fstatfs
#define UX_ftruncate ftruncate
#define UX_getegid getegid
#define UX_getenv getenv
#define UX_geteuid geteuid
#define UX_getgid getgid
#define UX_getgrgid getgrgid
#define UX_gethostbyname gethostbyname
#define UX_gethostname gethostname
#define UX_getlogin getlogin
#define UX_getpid getpid
#define UX_getpwnam getpwnam
#define UX_getpwuid getpwuid
#define UX_getservbyname getservbyname
#define UX_gettimeofday gettimeofday
#define UX_getuid getuid
#define UX_gmtime gmtime
#define UX_ioctl ioctl
#define UX_link link
#define UX_listen listen
#define UX_localtime localtime
#define UX_lseek lseek
#define UX_malloc malloc
#define UX_mknod mknod
#define UX_mktime mktime
#define UX_open open
#define UX_pause pause
#define UX_pipe pipe
#define UX_read read
#define UX_readlink readlink
#define UX_realloc realloc
#define UX_rmdir rmdir
#define UX_select select
#define UX_setitimer setitimer
#define UX_signal signal
#define UX_sleep sleep
#define UX_socket socket
#define UX_stat stat
#define UX_statfs statfs
#define UX_symlink symlink
#define UX_system system
#define UX_time time
#define UX_times times
#define UX_truncate truncate
#define UX_unlink unlink
#define UX_utime utime
#define UX_vfork vfork
#define UX_wait wait
#define UX_write write
#ifdef HAVE_SYMLINK
#define UX_lstat lstat
#else
#define UX_lstat stat
#endif
#ifdef HAVE_DUP2
# define UX_dup2 dup2
#else
# ifdef HAVE_FCNTL
extern int EXFUN (UX_dup2, (int, int));
# define EMULATE_DUP2
# define HAVE_DUP2
# endif
#endif
#ifdef HAVE_GETCWD
# define UX_getcwd getcwd
#else
extern char * EXFUN (UX_getcwd, (char *, size_t));
# define EMULATE_GETCWD
# define HAVE_GETCWD
#endif
#ifdef HAVE_MKDIR
# define UX_mkdir mkdir
#else
extern int EXFUN (UX_mkdir, (CONST char *, mode_t));
# define EMULATE_MKDIR
# define HAVE_MKDIR
#endif
#ifdef HAVE_RENAME
# define UX_rename rename
#else
extern int EXFUN (UX_rename, (CONST char *, CONST char *));
# define EMULATE_RENAME
# define HAVE_RENAME
#endif
#ifdef HAVE_WAITPID
# define UX_waitpid waitpid
#else
# ifdef HAVE_WAIT3
extern int EXFUN (UX_waitpid, (pid_t, int *, int));
# define EMULATE_WAITPID
# define HAVE_WAITPID
# endif
#endif
#ifdef HAVE_CTERMID
# define UX_ctermid ctermid
#else
extern char * EXFUN (UX_ctermid, (char * s));
# define EMULATE_CTERMID
#endif
#ifdef HAVE_KILL
# define UX_kill kill
#else
extern int EXFUN (UX_kill, (pid_t pid, int sig));
# define EMULATE_KILL
#endif
#ifdef HAVE_POLL
# ifndef INFTIM
# define INFTIM (-1)
# endif
#else
# ifdef FD_SET
# define SELECT_TYPE fd_set
# else
# define SELECT_TYPE int
# define FD_SETSIZE ((sizeof (int)) * CHAR_BIT)
# define FD_SET(n, p) ((*(p)) |= (1 << (n)))
# define FD_CLR(n, p) ((*(p)) &= ~(1 << (n)))
# define FD_ISSET(n, p) (((*(p)) & (1 << (n))) != 0)
# define FD_ZERO(p) ((*(p)) = 0)
# endif
#endif
#ifdef _POSIX_VERSION
# define ERRNO_NONBLOCK EAGAIN
# define FCNTL_NONBLOCK O_NONBLOCK
#else
# ifdef EWOULDBLOCK
# define ERRNO_NONBLOCK EWOULDBLOCK
# define FCNTL_NONBLOCK FNDELAY
# else
# define AMBIGUOUS_NONBLOCK
# ifdef EAGAIN
# define ERRNO_NONBLOCK EAGAIN
# endif
# define FCNTL_NONBLOCK O_NDELAY
# endif
#endif
#if defined(HAVE_GRANTPT) && defined(HAVE_STROPTS_H) && !defined(__osf__) && !defined(__linux__)
/* Must push various STREAMS modules onto the slave side of a PTY
when it is opened. */
# define SLAVE_PTY_P(filename) ((strncmp ((filename), "/dev/pts/", 9)) == 0)
extern int EXFUN (UX_setup_slave_pty, (int));
# define SETUP_SLAVE_PTY UX_setup_slave_pty
#endif
#ifndef TIOCSIGSEND
# ifdef TIOCSIGNAL
# define TIOCSIGSEND TIOCSIGNAL
# else
# ifdef TIOCSIG
# define TIOCSIGSEND TIOCSIG
# endif
# endif
#endif
#ifdef HAVE_TERMIOS_H
typedef struct
{
struct termios tio;
#ifdef HAVE_STRUCT_LTCHARS
struct ltchars ltc;
#endif
} Ttty_state;
#define UX_tcflush tcflush
#define UX_tcdrain tcdrain
#define UX_tcgetattr tcgetattr
#define UX_tcsetattr tcsetattr
#else /* not HAVE_TERMIOS_H */
extern int EXFUN (UX_tcdrain, (int));
extern int EXFUN (UX_tcflush, (int, int));
/* These values chosen to match the ioctl TCFLSH argument for termio. */
#define TCIFLUSH 0
#define TCOFLUSH 1
#define TCIOFLUSH 2
#ifdef HAVE_TERMIO_H
typedef struct
{
struct termio tio;
#ifdef HAVE_STRUCT_LTCHARS
struct ltchars ltc;
#endif
} Ttty_state;
#else /* not HAVE_TERMIO_H */
#ifdef HAVE_SGTTY_H
typedef struct
{
struct sgttyb sg;
struct tchars tc;
#ifdef HAVE_STRUCT_LTCHARS
struct ltchars ltc;
#endif
int lmode;
} Ttty_state;
#endif /* not HAVE_SGTTY_H */
#endif /* not HAVE_TERMIO_H */
#endif /* not HAVE_TERMIOS_H */
extern int EXFUN (UX_terminal_get_state, (int, Ttty_state *));
extern int EXFUN (UX_terminal_set_state, (int, Ttty_state *));
#ifdef _POSIX_VERSION
# define UX_getpgrp getpgrp
# define UX_setsid setsid
# define UX_setpgid setpgid
# define UX_tcgetpgrp tcgetpgrp
# define UX_tcsetpgrp tcsetpgrp
#else
# if defined(HAVE_GETPGRP) && defined(HAVE_SETPGRP)
# ifdef GETPGRP_VOID
# define UX_getpgrp getpgrp
# else
extern pid_t EXFUN (UX_getpgrp, (void));
# define EMULATE_GETPGRP
# endif
# ifdef SETPGRP_VOID
# define UX_setsid setpgrp
# else
extern pid_t EXFUN (UX_setsid, (void));
# define EMULATE_SETSID
# endif
# ifdef HAVE_SETPGRP2
# define UX_setpgid setpgrp2
# else
# ifdef SETPGRP_VOID
extern int UX_setpgid (pid_t, pid_t);
# define EMULATE_SETPGID
# else
# define UX_setpgid setpgrp
# endif
# endif
# endif
extern pid_t EXFUN (UX_tcgetpgrp, (int));
# define EMULATE_TCGETPGRP
extern int EXFUN (UX_tcsetpgrp, (int, pid_t));
# define EMULATE_TCSETPGRP
#endif
#ifdef HAVE_SIGACTION
#define UX_sigemptyset sigemptyset
#define UX_sigfillset sigfillset
#define UX_sigaddset sigaddset
#define UX_sigdelset sigdelset
#define UX_sigismember sigismember
#define UX_sigaction sigaction
#define UX_sigsuspend sigsuspend
#define UX_sigprocmask sigprocmask
#define HAVE_POSIX_SIGNALS
#else /* not HAVE_SIGACTION */
typedef long sigset_t;
extern int EXFUN (UX_sigemptyset, (sigset_t *));
extern int EXFUN (UX_sigfillset, (sigset_t *));
extern int EXFUN (UX_sigaddset, (sigset_t *, int));
extern int EXFUN (UX_sigdelset, (sigset_t *, int));
extern int EXFUN (UX_sigismember, (CONST sigset_t *, int));
#ifdef HAVE_SIGVEC
# define UX_sigvec sigvec
#else
# ifdef HAVE_SIGVECTOR
# define UX_sigvec sigvector
# define HAVE_SIGVEC
# endif
#endif
#ifdef HAVE_SIGVEC
struct sigaction
{
Tsignal_handler sa_handler;
sigset_t sa_mask;
int sa_flags;
};
extern int EXFUN
(UX_sigaction, (int, CONST struct sigaction *, struct sigaction *));
extern int EXFUN (UX_sigprocmask, (int, CONST sigset_t *, sigset_t *));
extern int EXFUN (UX_sigsuspend, (CONST sigset_t *));
#define SIG_BLOCK 0
#define SIG_UNBLOCK 1
#define SIG_SETMASK 2
#define HAVE_POSIX_SIGNALS
#else /* not HAVE_SIGVEC */
#ifdef HAVE_SIGHOLD
#define UX_sigset sigset
#define UX_sighold sighold
#define UX_sigrelse sigrelse
#endif /* HAVE_SIGHOLD */
#endif /* HAVE_SIGVEC */
#endif /* HAVE_SIGACTION */
#ifdef _POSIX_VERSION
# ifndef HAVE_FPATHCONF
extern long EXFUN (fpathconf, (int, int));
# define EMULATE_FPATHCONF
# endif
# ifndef HAVE_SYSCONF
extern long EXFUN (sysconf, (int));
# define EMULATE_SYSCONF
# endif
extern cc_t EXFUN (UX_PC_VDISABLE, (int fildes));
extern clock_t EXFUN (UX_SC_CLK_TCK, (void));
# define UX_SC_OPEN_MAX() ((size_t) (sysconf (_SC_OPEN_MAX)))
# define UX_SC_CHILD_MAX() ((size_t) (sysconf (_SC_CHILD_MAX)))
# ifdef _POSIX_JOB_CONTROL
# define UX_SC_JOB_CONTROL() 1
# else
# define UX_SC_JOB_CONTROL() ((sysconf (_SC_JOB_CONTROL)) >= 0)
# endif
#else /* not _POSIX_VERSION */
# define UX_PC_VDISABLE(fildes) '\377'
# ifdef OPEN_MAX
# define UX_SC_OPEN_MAX() OPEN_MAX
# else
# ifdef _NFILE
# define UX_SC_OPEN_MAX() _NFILE
# else
# define UX_SC_OPEN_MAX() 16
# endif
# endif
# ifdef CHILD_MAX
# define UX_SC_CHILD_MAX() CHILD_MAX
# else
# define UX_SC_CHILD_MAX() 6
# endif
# ifdef CLK_TCK
# define UX_SC_CLK_TCK() CLK_TCK
# else
# ifdef HZ
# define UX_SC_CLK_TCK() HZ
# else
# define UX_SC_CLK_TCK() 60
# endif
# endif
# ifdef TIOCGPGRP
# define UX_SC_JOB_CONTROL() 1
# else
# define UX_SC_JOB_CONTROL() 0
# endif
#endif /* not _POSIX_VERSION */
extern void EXFUN (UX_prim_check_errno, (enum syscall_names name));
#define STD_VOID_SYSTEM_CALL(name, expression) \
{ \
while ((expression) < 0) \
if (errno != EINTR) \
error_system_call (errno, (name)); \
}
#define STD_UINT_SYSTEM_CALL(name, result, expression) \
{ \
while (((result) = (expression)) < 0) \
if (errno != EINTR) \
error_system_call (errno, (name)); \
}
#define STD_PTR_SYSTEM_CALL(name, result, expression) \
{ \
while (((result) = (expression)) == 0) \
if (errno != EINTR) \
error_system_call (errno, (name)); \
}
#endif /* SCM_UX_H */
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