/* Interfaces to system-dependent kernel and library entries.
- Copyright (C) 1985, 86, 87, 88, 93, 94, 95 Free Software Foundation, Inc.
+ Copyright (C) 1985, 86,87,88,93,94,95, 1999 Free Software Foundation, Inc.
This file is part of GNU Emacs.
Boston, MA 02111-1307, USA. */
+#include <config.h>
#include <signal.h>
#include <setjmp.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
-#include <config.h>
#include "lisp.h"
#include "blockinput.h"
#undef NULL
-#define min(x,y) ((x) > (y) ? (y) : (x))
-
-/* In this file, open, read and write refer to the system calls,
- not our sugared interfaces sys_open, sys_read and sys_write.
- Contrariwise, for systems where we use the system calls directly,
- define sys_read, etc. here as aliases for them. */
-#ifndef read
-#define sys_read read
-#define sys_write write
-#endif /* `read' is not a macro */
+#ifdef macintosh
+#ifdef __MRC__
+__sigfun sys_signal (int signal, __sigfun signal_func);
+#elif __MWERKS__
+__signal_func_ptr sys_signal (int signal, __signal_func_ptr signal_func);
+#else
+You lose!!!
+#endif
+#ifndef subprocesses
+/* Nonzero means delete a process right away if it exits (process.c). */
+static int delete_exited_processes;
+#endif
+#ifndef HAVE_X_WINDOWS
+/* Search path for bitmap files (xfns.c). */
+Lisp_Object Vx_bitmap_file_path;
+#endif
+#endif /* macintosh */
-#undef read
-#undef write
+#define min(x,y) ((x) > (y) ? (y) : (x))
#ifdef WINDOWSNT
-#define read _read
-#define write _write
+#define read sys_read
+#define write sys_write
#include <windows.h>
-extern int errno;
-#endif /* not WINDOWSNT */
-
-#ifndef close
-#define sys_close close
-#else
-#undef close
+#ifndef NULL
+#define NULL 0
#endif
-
-#ifndef open
-#define sys_open open
-#else /* `open' is a macro */
-#undef open
-#endif /* `open' is a macro */
+#endif /* not WINDOWSNT */
/* Does anyone other than VMS need this? */
#ifndef fwrite
#include <unistd.h>
#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_SETPGID
+#if !defined (USG) || defined (BSD_PGRPS)
+#undef setpgrp
+#define setpgrp setpgid
+#endif
+#endif
+
/* Get SI_SRPC_DOMAIN, if it is available. */
#ifdef HAVE_SYS_SYSTEMINFO_H
#include <sys/systeminfo.h>
#endif
#endif
+#ifndef USE_CRT_DLL
+#ifndef errno
extern int errno;
+#endif
+#endif
#ifdef VMS
#include <rms.h>
#undef TIOCSWINSZ
#endif
-#if defined(USG) || defined(DGUX)
+#if defined (USG) || defined (DGUX)
#include <sys/utsname.h>
#include <string.h>
#ifndef MEMORY_IN_STRING_H
extern int quit_char;
+#include "keyboard.h"
#include "frame.h"
#include "window.h"
#include "termhooks.h"
#endif
#endif
-#ifndef VFORK_RETURN_TYPE
-#define VFORK_RETURN_TYPE int
-#endif
-
/* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */
#ifndef LPASS8
#define LPASS8 0
};
#endif
+#ifdef HAVE_SPEED_T
+#include <termios.h>
+extern speed_t ospeed;
+#else
#if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T)
extern short ospeed;
#else
extern short ospeed;
#endif
#endif
+#endif
/* The file descriptor for Emacs's input terminal.
Under Unix, this is normally zero except when using X;
void hft_reset ();
#endif
+/* Temporary used by `sigblock' when defined in terms of signprocmask. */
+
+SIGMASKTYPE sigprocmask_set;
+
\f
/* Specify a different file descriptor for further input operations. */
}
return -1;
#else
-#if defined(SIGTSTP) && !defined(MSDOS)
+#if defined (SIGTSTP) && !defined (MSDOS)
{
int pgrp = EMACS_GETPGRP (0);
void
sys_subshell ()
{
+#ifdef macintosh
+ error ("Can't spawn subshell");
+#else
#ifndef VMS
#ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
int st;
restore_signal_handlers (saved_handlers);
synch_process_alive = 0;
#endif /* !VMS */
+#endif /* !macintosh */
}
static void
if (read_socket_hook)
return;
- sigemptyset(&st);
- sigaddset(&st, SIGIO);
+ sigemptyset (&st);
+ sigaddset (&st, SIGIO);
ioctl (input_fd, FIOASYNC, &on);
interrupts_deferred = 0;
- sigprocmask(SIG_UNBLOCK, &st, (sigset_t *)0);
+ sigprocmask (SIG_UNBLOCK, &st, (sigset_t *)0);
}
void
int i;
/* We have those nifty POSIX tcmumbleattr functions.
William J. Smith <wjs@wiis.wang.com> writes:
- "POSIX 1003.1 defines tcsetattr() to return success if it was
+ "POSIX 1003.1 defines tcsetattr to return success if it was
able to perform any of the requested actions, even if some
of the requested actions could not be performed.
We must read settings back to ensure tty setup properly.
&& new.c_oflag == settings->main.c_oflag
&& new.c_cflag == settings->main.c_cflag
&& new.c_lflag == settings->main.c_lflag
- && memcmp(new.c_cc, settings->main.c_cc, NCCS) == 0)
+ && memcmp (new.c_cc, settings->main.c_cc, NCCS) == 0)
break;
else
continue;
{
struct emacs_tty tty;
+#ifdef macintosh
+ Vwindow_system = intern ("mac");
+ Vwindow_system_version = make_number (1);
+
+/* cus-start.el complains if delete-exited-processes and x-bitmap-file-path not defined */
+#ifndef subprocesses
+ DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes,
+ "*Non-nil means delete processes immediately when they exit.\n\
+nil means don't delete them until `list-processes' is run.");
+ delete_exited_processes = 0;
+#endif
+
+#ifndef HAVE_X_WINDOWS
+ DEFVAR_LISP ("x-bitmap-file-path", &Vx_bitmap_file_path,
+ "List of directories to search for bitmap files for X.");
+ Vx_bitmap_file_path = decode_env_path ((char *) 0, ".");
+#endif
+
+#endif /* not macintosh */
+
#ifdef VMS
#if 0
static int oob_chars[2] = {0, 1 << 7}; /* catch C-g's */
#endif
set_terminal_modes ();
+ if (!term_initted
+ && FRAMEP (Vterminal_frame)
+ && FRAME_TERMCAP_P (XFRAME (Vterminal_frame)))
+ init_frame_faces (XFRAME (Vterminal_frame));
+
if (term_initted && no_redraw_on_reenter)
{
if (display_completed)
void
reset_sys_modes ()
{
+ struct frame *sf;
+
if (noninteractive)
{
fflush (stdout);
)
return;
#endif
- cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0);
- clear_end_of_line (FRAME_WIDTH (selected_frame));
+ sf = SELECTED_FRAME ();
+ cursor_to (FRAME_HEIGHT (sf) - 1, 0);
+ clear_end_of_line (FRAME_WIDTH (sf));
/* clear_end_of_line may move the cursor */
- cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0);
+ cursor_to (FRAME_HEIGHT (sf) - 1, 0);
#if defined (IBMR2AIX) && defined (AIXHFT)
{
/* HFT devices normally use ^J as a LF/CR. We forced it to
Since the latter lossage is more benign, we may as well
lose that way. -- cph */
#ifdef FIONBIO
-#ifdef SYSV_PTYS
+#if defined(SYSV_PTYS) || defined(UNIX98_PTYS)
{
int on = 1;
ioctl (fd, FIONBIO, &on);
struct input_event e;
e.kind = ascii_keystroke;
XSETINT (e.code, c);
- XSETFRAME (e.frame_or_window, selected_frame);
+ e.frame_or_window = selected_frame;
kbd_buffer_store_event (&e);
}
if (input_available_clear_time)
*
*/
+#if !(defined (__NetBSD__) && defined (__ELF__))
#ifndef HAVE_TEXT_START
char *
start_of_text ()
#endif /* TEXT_START */
}
#endif /* not HAVE_TEXT_START */
+#endif
/*
* Return the address of the start of the data segment prior to
*/
extern char **environ;
- return((char *) &environ);
+ return ((char *) &environ);
#else
extern int data_start;
return ((char *) &data_start);
SELECT_TYPE *rfds, *wfds, *efds;
EMACS_TIME *timeout;
{
- int ravail = 0, old_alarm;
+ int ravail = 0;
SELECT_TYPE orfds;
int timeoutval;
int *local_timeout;
#else
extern int process_tick, update_tick;
#endif
- SIGTYPE (*old_trap) ();
unsigned char buf;
#if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS)
}
if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick)
break;
- old_alarm = alarm (0);
- old_trap = signal (SIGALRM, select_alarm);
+
+ turn_on_atimers (0);
+ signal (SIGALRM, select_alarm);
select_alarmed = 0;
alarm (SELECT_PAUSE);
+
/* Wait for a SIGALRM (or maybe a SIGTINT) */
while (select_alarmed == 0 && *local_timeout != 0
&& process_tick == update_tick)
pause ();
}
(*local_timeout) -= SELECT_PAUSE;
- /* Reset the old alarm if there was one */
- alarm (0);
- signal (SIGALRM, old_trap);
- if (old_alarm != 0)
- {
- /* Reset or forge an interrupt for the original handler. */
- old_alarm -= SELECT_PAUSE;
- if (old_alarm <= 0)
- kill (getpid (), SIGALRM); /* Fake an alarm with the orig' handler */
- else
- alarm (old_alarm);
- }
+
+ /* Reset the old alarm if there was one. */
+ turn_on_atimers (1);
+
if (*local_timeout == 0) /* Stop on timer being cleared */
break;
}
read_alarm_should_throw = 0;
if (! setjmp (read_alarm_throw))
- nread = (*read_socket_hook) (0, buf, 256, 1, 0);
+ nread = (*read_socket_hook) (0, buf, 256, 1);
else
nread = -1;
/* Scan the chars for C-g and store them in kbd_buffer. */
e.kind = ascii_keystroke;
- XSETFRAME (e.frame_or_window, selected_frame);
+ e.frame_or_window = selected_frame;
e.modifiers = 0;
for (i = 0; i < nread; i++)
{
#endif /* not MSDOS */
\f
#ifdef BSD4_1
-/*
- * Partially emulate 4.2 open call.
- * open is defined as this in 4.1.
- *
- * - added by Michael Bloom @ Citicorp/TTI
- *
- */
-
-int
-sys_open (path, oflag, mode)
- char *path;
- int oflag, mode;
-{
- if (oflag & O_CREAT)
- return creat (path, mode);
- else
- return open (path, oflag);
-}
-
void
init_sigio (fd)
int fd;
sigset_t empty_mask, full_mask;
-void
-init_signals ()
-{
- sigemptyset (&empty_mask);
- sigfillset (&full_mask);
-}
-
signal_handler_t
sys_signal (int signal_number, signal_handler_t action)
{
#endif /* POSIX_SIGNALS */
\f
+#if !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED
+static char *my_sys_siglist[NSIG];
+# ifdef sys_siglist
+# undef sys_siglist
+# endif
+# define sys_siglist my_sys_siglist
+#endif
+
+void
+init_signals ()
+{
+#ifdef POSIX_SIGNALS
+ sigemptyset (&empty_mask);
+ sigfillset (&full_mask);
+#endif
+
+#if !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED
+ if (! initialized)
+ {
+# ifdef SIGABRT
+ sys_siglist[SIGABRT] = "Aborted";
+# endif
+# ifdef SIGAIO
+ sys_siglist[SIGAIO] = "LAN I/O interrupt";
+# endif
+# ifdef SIGALRM
+ sys_siglist[SIGALRM] = "Alarm clock";
+# endif
+# ifdef SIGBUS
+ sys_siglist[SIGBUS] = "Bus error";
+# endif
+# ifdef SIGCLD
+ sys_siglist[SIGCLD] = "Child status changed";
+# endif
+# ifdef SIGCHLD
+ sys_siglist[SIGCHLD] = "Child status changed";
+# endif
+# ifdef SIGCONT
+ sys_siglist[SIGCONT] = "Continued";
+# endif
+# ifdef SIGDANGER
+ sys_siglist[SIGDANGER] = "Swap space dangerously low";
+# endif
+# ifdef SIGDGNOTIFY
+ sys_siglist[SIGDGNOTIFY] = "Notification message in queue";
+# endif
+# ifdef SIGEMT
+ sys_siglist[SIGEMT] = "Emulation trap";
+# endif
+# ifdef SIGFPE
+ sys_siglist[SIGFPE] = "Arithmetic exception";
+# endif
+# ifdef SIGFREEZE
+ sys_siglist[SIGFREEZE] = "SIGFREEZE";
+# endif
+# ifdef SIGGRANT
+ sys_siglist[SIGGRANT] = "Monitor mode granted";
+# endif
+# ifdef SIGHUP
+ sys_siglist[SIGHUP] = "Hangup";
+# endif
+# ifdef SIGILL
+ sys_siglist[SIGILL] = "Illegal instruction";
+# endif
+# ifdef SIGINT
+ sys_siglist[SIGINT] = "Interrupt";
+# endif
+# ifdef SIGIO
+ sys_siglist[SIGIO] = "I/O possible";
+# endif
+# ifdef SIGIOINT
+ sys_siglist[SIGIOINT] = "I/O intervention required";
+# endif
+# ifdef SIGIOT
+ sys_siglist[SIGIOT] = "IOT trap";
+# endif
+# ifdef SIGKILL
+ sys_siglist[SIGKILL] = "Killed";
+# endif
+# ifdef SIGLOST
+ sys_siglist[SIGLOST] = "Resource lost";
+# endif
+# ifdef SIGLWP
+ sys_siglist[SIGLWP] = "SIGLWP";
+# endif
+# ifdef SIGMSG
+ sys_siglist[SIGMSG] = "Monitor mode data available";
+# endif
+# ifdef SIGPHONE
+ sys_siglist[SIGWIND] = "SIGPHONE";
+# endif
+# ifdef SIGPIPE
+ sys_siglist[SIGPIPE] = "Broken pipe";
+# endif
+# ifdef SIGPOLL
+ sys_siglist[SIGPOLL] = "Pollable event occurred";
+# endif
+# ifdef SIGPROF
+ sys_siglist[SIGPROF] = "Profiling timer expired";
+# endif
+# ifdef SIGPTY
+ sys_siglist[SIGPTY] = "PTY I/O interrupt";
+# endif
+# ifdef SIGPWR
+ sys_siglist[SIGPWR] = "Power-fail restart";
+# endif
+# ifdef SIGQUIT
+ sys_siglist[SIGQUIT] = "Quit";
+# endif
+# ifdef SIGRETRACT
+ sys_siglist[SIGRETRACT] = "Need to relinguish monitor mode";
+# endif
+# ifdef SIGSAK
+ sys_siglist[SIGSAK] = "Secure attention";
+# endif
+# ifdef SIGSEGV
+ sys_siglist[SIGSEGV] = "Segmentation violation";
+# endif
+# ifdef SIGSOUND
+ sys_siglist[SIGSOUND] = "Sound completed";
+# endif
+# ifdef SIGSTOP
+ sys_siglist[SIGSTOP] = "Stopped (signal)";
+# endif
+# ifdef SIGSTP
+ sys_siglist[SIGSTP] = "Stopped (user)";
+# endif
+# ifdef SIGSYS
+ sys_siglist[SIGSYS] = "Bad argument to system call";
+# endif
+# ifdef SIGTERM
+ sys_siglist[SIGTERM] = "Terminated";
+# endif
+# ifdef SIGTHAW
+ sys_siglist[SIGTHAW] = "SIGTHAW";
+# endif
+# ifdef SIGTRAP
+ sys_siglist[SIGTRAP] = "Trace/breakpoint trap";
+# endif
+# ifdef SIGTSTP
+ sys_siglist[SIGTSTP] = "Stopped (user)";
+# endif
+# ifdef SIGTTIN
+ sys_siglist[SIGTTIN] = "Stopped (tty input)";
+# endif
+# ifdef SIGTTOU
+ sys_siglist[SIGTTOU] = "Stopped (tty output)";
+# endif
+# ifdef SIGURG
+ sys_siglist[SIGURG] = "Urgent I/O condition";
+# endif
+# ifdef SIGUSR1
+ sys_siglist[SIGUSR1] = "User defined signal 1";
+# endif
+# ifdef SIGUSR2
+ sys_siglist[SIGUSR2] = "User defined signal 2";
+# endif
+# ifdef SIGVTALRM
+ sys_siglist[SIGVTALRM] = "Virtual timer expired";
+# endif
+# ifdef SIGWAITING
+ sys_siglist[SIGWAITING] = "Process's LWPs are blocked";
+# endif
+# ifdef SIGWINCH
+ sys_siglist[SIGWINCH] = "Window size changed";
+# endif
+# ifdef SIGWIND
+ sys_siglist[SIGWIND] = "SIGWIND";
+# endif
+# ifdef SIGXCPU
+ sys_siglist[SIGXCPU] = "CPU time limit exceeded";
+# endif
+# ifdef SIGXFSZ
+ sys_siglist[SIGXFSZ] = "File size limit exceeded";
+# endif
+ }
+#endif /* !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED */
+}
+\f
#ifndef HAVE_RANDOM
#ifdef random
#define HAVE_RANDOM
#endif /* not WINDOWSNT */
#endif /* ! HAVE_STRERROR */
\f
-#ifdef INTERRUPTIBLE_OPEN
-
int
-/* VARARGS 2 */
-sys_open (path, oflag, mode)
+emacs_open (path, oflag, mode)
char *path;
int oflag, mode;
{
register int rtnval;
+
+#ifdef BSD4_1
+ if (oflag & O_CREAT)
+ return creat (path, mode);
+#endif
while ((rtnval = open (path, oflag, mode)) == -1
&& (errno == EINTR));
return (rtnval);
}
-#endif /* INTERRUPTIBLE_OPEN */
-
-#ifdef INTERRUPTIBLE_CLOSE
-
int
-sys_close (fd)
+emacs_close (fd)
int fd;
{
int did_retry = 0;
return rtnval;
}
-#endif /* INTERRUPTIBLE_CLOSE */
-
-#ifdef INTERRUPTIBLE_IO
-
int
-sys_read (fildes, buf, nbyte)
+emacs_read (fildes, buf, nbyte)
int fildes;
char *buf;
unsigned int nbyte;
}
int
-sys_write (fildes, buf, nbyte)
+emacs_write (fildes, buf, nbyte)
int fildes;
char *buf;
unsigned int nbyte;
}
return (bytes_written);
}
-
-#endif /* INTERRUPTIBLE_IO */
-\f
-#ifndef HAVE_VFORK
-#ifndef WINDOWSNT
-/*
- * Substitute fork for vfork on USG flavors.
- */
-
-VFORK_RETURN_TYPE
-vfork ()
-{
- return (fork ());
-}
-#endif /* not WINDOWSNT */
-#endif /* not HAVE_VFORK */
\f
#ifdef USG
/*
* always negligible. Fred Fish, Unisoft Systems Inc.
*/
-#ifndef HAVE_SYS_SIGLIST
-char *sys_siglist[NSIG + 1] =
-{
-#ifdef AIX
-/* AIX has changed the signals a bit */
- "bogus signal", /* 0 */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "IOT instruction", /* 6 SIGIOT */
- "crash likely", /* 7 SIGDANGER */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no one to read it", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signum", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "death of a child", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
- "bogus signal", /* 20 */
- "bogus signal", /* 21 */
- "bogus signal", /* 22 */
- "bogus signal", /* 23 */
- "bogus signal", /* 24 */
- "LAN I/O interrupt", /* 25 SIGAIO */
- "PTY I/O interrupt", /* 26 SIGPTY */
- "I/O intervention required", /* 27 SIGIOINT */
-#ifdef AIXHFT
- "HFT grant", /* 28 SIGGRANT */
- "HFT retract", /* 29 SIGRETRACT */
- "HFT sound done", /* 30 SIGSOUND */
- "HFT input ready", /* 31 SIGMSG */
-#endif
-#else /* not AIX */
- "bogus signal", /* 0 */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "IOT instruction", /* 6 SIGIOT */
- "EMT instruction", /* 7 SIGEMT */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no one to read it", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signum", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "death of a child", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
-#ifdef sun
- "window size change", /* 20 SIGWINCH */
- "urgent socket condition", /* 21 SIGURG */
- "pollable event occurred", /* 22 SIGPOLL */
- "stop (cannot be caught or ignored)", /* 23 SIGSTOP */
- "user stop requested from tty", /* 24 SIGTSTP */
- "stopped process has been continued", /* 25 SIGCONT */
- "background tty read attempted", /* 26 SIGTTIN */
- "background tty write attempted", /* 27 SIGTTOU */
- "virtual timer expired", /* 28 SIGVTALRM */
- "profiling timer expired", /* 29 SIGPROF */
- "exceeded cpu limit", /* 30 SIGXCPU */
- "exceeded file size limit", /* 31 SIGXFSZ */
- "process's lwps are blocked", /* 32 SIGWAITING */
- "special signal used by thread library", /* 33 SIGLWP */
-#ifdef SIGFREEZE
- "Special Signal Used By CPR", /* 34 SIGFREEZE */
-#endif
-#ifdef SIGTHAW
- "Special Signal Used By CPR", /* 35 SIGTHAW */
-#endif
-#endif /* sun */
-#endif /* not AIX */
- 0
- };
-#endif /* HAVE_SYS_SIGLIST */
-
/*
* Warning, this function may not duplicate 4.2 action properly
* under error conditions.
{
register int fd, ret;
- sys_close (newd);
+ emacs_close (newd);
#ifdef F_DUPFD
- fd = fcntl (oldd, F_DUPFD, newd);
- if (fd != newd)
- error ("can't dup2 (%i,%i) : %s", oldd, newd, strerror (errno));
+ return fcntl (oldd, F_DUPFD, newd);
#else
fd = dup (old);
if (fd == -1)
if (fd == new)
return new;
ret = dup2 (old,new);
- sys_close (fd);
+ emacs_close (fd);
return ret;
#endif
}
#endif /* USG */
\f
-#ifdef DGUX
-
-char *sys_siglist[NSIG + 1] =
-{
- "null signal", /* 0 SIGNULL */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "abort termination", /* 6 SIGABRT */
- "SIGEMT", /* 7 SIGEMT */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no reader", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signal", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "child stopped or terminated", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
- "window size changed", /* 20 SIGWINCH */
- "undefined", /* 21 */
- "pollable event occurred", /* 22 SIGPOLL */
- "sendable stop signal not from tty", /* 23 SIGSTOP */
- "stop signal from tty", /* 24 SIGSTP */
- "continue a stopped process", /* 25 SIGCONT */
- "attempted background tty read", /* 26 SIGTTIN */
- "attempted background tty write", /* 27 SIGTTOU */
- "undefined", /* 28 */
- "undefined", /* 29 */
- "undefined", /* 30 */
- "undefined", /* 31 */
- "undefined", /* 32 */
- "socket (TCP/IP) urgent data arrival", /* 33 SIGURG */
- "I/O is possible", /* 34 SIGIO */
- "exceeded cpu time limit", /* 35 SIGXCPU */
- "exceeded file size limit", /* 36 SIGXFSZ */
- "virtual time alarm", /* 37 SIGVTALRM */
- "profiling time alarm", /* 38 SIGPROF */
- "undefined", /* 39 */
- "file record locks revoked", /* 40 SIGLOST */
- "undefined", /* 41 */
- "undefined", /* 42 */
- "undefined", /* 43 */
- "undefined", /* 44 */
- "undefined", /* 45 */
- "undefined", /* 46 */
- "undefined", /* 47 */
- "undefined", /* 48 */
- "undefined", /* 49 */
- "undefined", /* 50 */
- "undefined", /* 51 */
- "undefined", /* 52 */
- "undefined", /* 53 */
- "undefined", /* 54 */
- "undefined", /* 55 */
- "undefined", /* 56 */
- "undefined", /* 57 */
- "undefined", /* 58 */
- "undefined", /* 59 */
- "undefined", /* 60 */
- "undefined", /* 61 */
- "undefined", /* 62 */
- "undefined", /* 63 */
- "notification message in mess. queue", /* 64 SIGDGNOTIFY */
- 0
-};
-
-#endif /* DGUX */
-\f
/* Directory routines for systems that don't have them. */
#ifdef SYSV_SYSTEM_DIR
#include <dirent.h>
-#if defined(BROKEN_CLOSEDIR) || !defined(HAVE_CLOSEDIR)
+#if defined (BROKEN_CLOSEDIR) || !defined (HAVE_CLOSEDIR)
int
closedir (dirp)
{
int rtnval;
- rtnval = sys_close (dirp->dd_fd);
+ rtnval = emacs_close (dirp->dd_fd);
/* Some systems (like Solaris) allocate the buffer and the DIR all
in one block. Why in the world are we freeing this ourselves
register int fd; /* file descriptor for read */
struct stat sbuf; /* result of fstat */
- fd = sys_open (filename, 0);
+ fd = emacs_open (filename, O_RDONLY, 0);
if (fd < 0)
return 0;
BLOCK_INPUT;
if (fstat (fd, &sbuf) < 0
|| (sbuf.st_mode & S_IFMT) != S_IFDIR
- || (dirp = (DIR *) malloc (sizeof (DIR))) == 0)
+ || (dirp = (DIR *) xmalloc (sizeof (DIR))) == 0)
{
- sys_close (fd);
+ emacs_close (fd);
UNBLOCK_INPUT;
return 0; /* bad luck today */
}
closedir (dirp)
register DIR *dirp; /* stream from opendir */
{
- sys_close (dirp->dd_fd);
+ emacs_close (dirp->dd_fd);
xfree ((char *) dirp);
}
dirp->dd_loc = dirp->dd_size = 0;
if (dirp->dd_size == 0 /* refill buffer */
- && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
+ && (dirp->dd_size = emacs_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
return 0;
#ifndef VMS
*/
status = umask (0); /* Get current umask */
status = umask (status | (0777 & ~dmode)); /* Set for mkdir */
- fd = sys_open("/dev/null", 2);
+ fd = emacs_open ("/dev/null", O_RDWR, 0);
if (fd >= 0)
{
dup2 (fd, 0);
return (-1); /* Errno is set already */
case 0: /* Child process */
- fd = sys_open("/dev/null", 2);
+ fd = emacs_open ("/dev/null", O_RDWR, 0);
if (fd >= 0)
{
dup2 (fd, 0);
return (getgid () << 16) | getuid ();
}
+#undef read
int
sys_read (fildes, buf, nbyte)
int fildes;
* Thus we do this stupidity below.
*/
+#undef write
int
sys_write (fildes, buf, nbytes)
int fildes;
there's no way to determine the old mapping, so in reset_sys_modes
we need to assume that the normal map had been present. Of course, this
code also doesn't help if on a terminal emulator which doesn't understand
- HFT VTD's. */
+ HFT VTD's. */
{
struct hfbuf buf;
struct hfkeymap keymap;
line_ins_del_ok = char_ins_del_ok = 0;
}
-/* Reset the rubout key to backspace. */
+/* Reset the rubout key to backspace. */
void
hft_reset ()
}
#endif /* no bcmp */
#endif /* not BSTRING */
+\f
+#ifndef HAVE_STRSIGNAL
+char *
+strsignal (code)
+ int code;
+{
+ char *signame = 0;
+
+ if (0 <= code && code < NSIG)
+ {
+#ifdef VMS
+ signame = sys_errlist[code];
+#else
+ /* Cast to suppress warning if the table has const char *. */
+ signame = (char *) sys_siglist[code];
+#endif
+ }
+
+ return signame;
+}
+#endif /* HAVE_STRSIGNAL */
+\f
+/* All the Macintosh stuffs go here */
+
+#ifdef macintosh
+
+#include <Files.h>
+#include <MacTypes.h>
+#include <TextUtils.h>
+#include <Folders.h>
+
+#include <dirent.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <pwd.h>
+#include <sys/param.h>
+
+/* Convert a Mac pathname to Unix form. A Mac full pathname is one
+ that does not begin with a ':' and contains at least one ':'. A Mac
+ full pathname causes an '/' to be prepended to the Unix pathname.
+ The algorithm for the rest of the pathname is as follows:
+ For each segment between two ':',
+ if it is non-null, copy as is and then add a '/' at the end,
+ otherwise, insert a "../" into the Unix pathname.
+ Returns 1 if successful; 0 if fails. */
+
+int
+Mac2UnixPathname (const char *mfn, char *ufn, int ufnbuflen)
+{
+ const char *p, *q, *pe;
+
+ strcpy (ufn, "");
+
+ if (*mfn == '\0')
+ return 1;
+
+ p = strchr (mfn, ':');
+ if (p != 0 && p != mfn) /* full pathname */
+ strcat (ufn, "/");
+
+ p = mfn;
+ if (*p == ':')
+ p++;
+
+ pe = mfn + strlen (mfn);
+ while (p < pe)
+ {
+ q = strchr (p, ':');
+ if (q)
+ {
+ if (q == p)
+ { /* two consecutive ':' */
+ if (strlen (ufn) + 3 >= ufnbuflen)
+ return 0;
+ strcat (ufn, "../");
+ }
+ else
+ {
+ if (strlen (ufn) + (q - p) + 1 >= ufnbuflen)
+ return 0;
+ strncat (ufn, p, q - p);
+ strcat (ufn, "/");
+ }
+ p = q + 1;
+ }
+ else
+ {
+ if (strlen (ufn) + (pe - p) >= ufnbuflen)
+ return 0;
+ strncat (ufn, p, pe - p); /* no separator for last one */
+ p = pe;
+ }
+ }
+
+ return 1;
+}
+
+extern char *GetTempDirName ();
+
+/* Convert a Unix pathname to Mac form. Approximately reverse of the
+ above in algorithm. */
+int
+Unix2MacPathname (const char *ufn, char *mfn, int mfnbuflen)
+{
+ const char *p, *q, *pe;
+ char expandedPathname[MAXPATHLEN+1];
+
+ strcpy (mfn, "");
+
+ if (*ufn == '\0')
+ return 1;
+
+ p = ufn;
+
+ /* Check for and handle volume names. Last comparison: strangely
+ somewhere `/.emacs' is passed. A temporary fix for now. */
+ if (*p == '/' && strchr (p+1, '/') == NULL && strcmp (p, "/.emacs") != 0)
+ {
+ if (strlen (p) + 1 > mfnbuflen)
+ return 0;
+ strcpy (mfn, p+1);
+ strcat (mfn, ":");
+ return 1;
+ }
+
+ if (strncmp (p, "~emacs/", 7) == 0)
+ { /* expand to emacs dir found by InitEmacsPasswdDir */
+ struct passwd *pw = getpwnam ("emacs");
+ p += 7;
+ if (strlen (pw->pw_dir) + strlen (p) > MAXPATHLEN)
+ return 0;
+ strcpy (expandedPathname, pw->pw_dir);
+ strcat (expandedPathname, p);
+ p = expandedPathname;
+ /* Now p points to the pathname with emacs dir prefix. */
+ }
+ else if (strncmp (p, "/tmp/", 5) == 0)
+ {
+ char *t = GetTempDirName ();
+ p += 5;
+ if (strlen (t) + strlen (p) > MAXPATHLEN)
+ return 0;
+ strcpy (expandedPathname, t);
+ strcat (expandedPathname, p);
+ p = expandedPathname;
+ /* Now p points to the pathname with emacs dir prefix. */
+ }
+ else if (*p != '/') /* relative pathname */
+ strcat (mfn, ":");
+
+ if (*p == '/')
+ p++;
+
+ pe = p + strlen (p);
+ while (p < pe)
+ {
+ q = strchr (p, '/');
+ if (q)
+ {
+ if (q - p == 2 && *p == '.' && *(p+1) == '.')
+ {
+ if (strlen (mfn) + 1 >= mfnbuflen)
+ return 0;
+ strcat (mfn, ":");
+ }
+ else
+ {
+ if (strlen (mfn) + (q - p) + 1 >= mfnbuflen)
+ return 0;
+ strncat (mfn, p, q - p);
+ strcat (mfn, ":");
+ }
+ p = q + 1;
+ }
+ else
+ {
+ if (strlen (mfn) + (pe - p) >= mfnbuflen)
+ return 0;
+ strncat (mfn, p, pe - p);
+ p = pe;
+ }
+ }
+
+ return 1;
+}
+
+/* The following functions with "sys_" prefix are stubs to Unix
+ functions that have already been implemented by CW or MPW. The
+ calls to them in Emacs source course are #define'd to call the sys_
+ versions by the header files s-mac.h. In these stubs pathnames are
+ converted between their Unix and Mac forms. */
+/* Unix Epoch is Jan 1, 1970 while Mac Epoch is Jan 1, 1904: 66 years
+ + 17 leap days */
+#define MAC_UNIX_EPOCH_DIFF ((365L * 66 + 17) * 24 * 60 * 60)
+
+/* CW Epoch is Jan 1, 1900 (aaarghhhhh!); remember, 1900 is not a leap
+ year! */
+#define CW_UNIX_EPOCH_DIFF ((365L * 70 + 17) * 24 * 60 * 60)
+
+/* Define our own stat function for both MrC and CW. The reason for
+ doing this: "stat" is both the name of a struct and function name:
+ we can't #define stat to something else to
+ redirect Emacs's calls to our own version that converts Unix style
+ filenames to Mac style filename because all sorts of compilation
+ errors will be generated if stat is #define'd to be something else. */
+
+int
+stat (const char *path, struct stat *buf)
+{
+ char MacPathname[MAXPATHLEN+1];
+ CInfoPBRec cipb;
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ c2pstr (MacPathname);
+ cipb.hFileInfo.ioNamePtr = MacPathname;
+ cipb.hFileInfo.ioVRefNum = 0;
+ cipb.hFileInfo.ioDirID = 0;
+ cipb.hFileInfo.ioFDirIndex = 0; /* set to 0 to get information about specific dir or file */
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno == -43) /* -43: fnfErr defined in Errors.h */
+ errno = ENOENT;
+ if (errno != noErr)
+ return -1;
+
+ if (cipb.hFileInfo.ioFlAttrib & 0x10)
+ { /* bit 4 = 1 for directories */
+ buf->st_mode = S_IFDIR | S_IREAD | S_IEXEC;
+ if (!(cipb.hFileInfo.ioFlAttrib & 0x1)) /* bit 1 = 1 for locked files/directories */
+ buf->st_mode |= S_IWRITE;
+ buf->st_ino = cipb.dirInfo.ioDrDirID;
+ buf->st_dev = cipb.dirInfo.ioVRefNum;
+ buf->st_size = cipb.dirInfo.ioDrNmFls; /* size of dir = number of files and dirs */
+ buf->st_atime = buf->st_mtime = cipb.dirInfo.ioDrMdDat - MAC_UNIX_EPOCH_DIFF;
+ buf->st_ctime = cipb.dirInfo.ioDrCrDat - MAC_UNIX_EPOCH_DIFF;
+ }
+ else
+ {
+ buf->st_mode = S_IFREG | S_IREAD;
+ if (!(cipb.hFileInfo.ioFlAttrib & 0x1)) /* bit 1 = 1 for locked files/directories */
+ buf->st_mode |= S_IWRITE;
+ if (cipb.hFileInfo.ioFlFndrInfo.fdType == 'APPL')
+ buf->st_mode |= S_IEXEC;
+ buf->st_ino = cipb.hFileInfo.ioDirID;
+ buf->st_dev = cipb.hFileInfo.ioVRefNum;
+ buf->st_size = cipb.hFileInfo.ioFlLgLen;
+ buf->st_atime = buf->st_mtime = cipb.hFileInfo.ioFlMdDat - MAC_UNIX_EPOCH_DIFF;
+ buf->st_ctime = cipb.hFileInfo.ioFlCrDat - MAC_UNIX_EPOCH_DIFF;
+ }
+ buf->st_nlink = 1;
+ buf->st_uid = getuid ();
+ buf->st_gid = getgid ();
+ buf->st_rdev = 0;
+
+ return 0;
+}
+
+#if __MRC__
+
+/* CW defines fstat in stat.mac.c while MPW does not provide this
+ function. Without the information of how to get from a file
+ descriptor in MPW StdCLib to a Mac OS file spec, it should be hard
+ to implement this function. Fortunately, there is only one place
+ where this function is called in our configuration: in fileio.c,
+ where only the st_dev and st_ino fields are used to determine
+ whether two fildes point to different i-nodes to prevent copying
+ a file onto itself equal. What we have here probably needs
+ improvement. */
+int
+fstat (int fildes, struct stat *buf)
+{
+ buf->st_dev = 0;
+ buf->st_ino = fildes;
+ return 0; /* success */
+}
+
+#endif /* __MRC__ */
+
+/* From Think Reference code example */
+int
+mkdir (const char *dirname, int mode)
+{
+#pragma unused (mode)
+
+ HFileParam hfpb;
+ char MacPathname[MAXPATHLEN+1];
+
+ if (Unix2MacPathname (dirname, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ c2pstr (MacPathname);
+ hfpb.ioNamePtr = MacPathname;
+ hfpb.ioVRefNum = 0; /*ignored unless name is invalid */
+ hfpb.ioDirID = 0; /*parent is the root */
+
+ /* Just return the Mac OSErr code for now. */
+ errno = PBDirCreate ((HParmBlkPtr) &hfpb, false);
+ return errno == noErr ? 0 : -1;
+}
+
+int
+rmdir (const char *dirname)
+{
+ HFileParam hfpb;
+ char MacPathname[MAXPATHLEN+1];
+
+ if (Unix2MacPathname (dirname, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ c2pstr (MacPathname);
+ hfpb.ioNamePtr = MacPathname;
+ hfpb.ioVRefNum = 0; /*ignored unless name is invalid */
+ hfpb.ioDirID = 0; /*parent is the root */
+
+ errno = PBHDelete ((HParmBlkPtr) &hfpb, false);
+ return errno == noErr ? 0 : -1;
+}
+
+#ifdef __MRC__
+
+/* No implementation yet. */
+int
+execvp (const char *path, ...)
+{
+ return -1;
+}
+
+#endif /* __MRC__ */
+
+int
+utime (const char *path, const struct utimbuf *times)
+{
+ char MacPathname[MAXPATHLEN+1];
+ CInfoPBRec cipb;
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ c2pstr (MacPathname);
+ cipb.hFileInfo.ioNamePtr = MacPathname;
+ cipb.hFileInfo.ioVRefNum = 0;
+ cipb.hFileInfo.ioDirID = 0;
+ /* Set to 0 to get information about specific dir or file. */
+ cipb.hFileInfo.ioFDirIndex = 0;
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno != noErr)
+ return -1;
+
+ if (cipb.hFileInfo.ioFlAttrib & 0x10)
+ { /* bit 4 = 1 for directories */
+ if (times)
+ cipb.dirInfo.ioDrMdDat = times->modtime + MAC_UNIX_EPOCH_DIFF;
+ else
+ GetDateTime (&cipb.dirInfo.ioDrMdDat);
+ }
+ else
+ {
+ if (times)
+ cipb.hFileInfo.ioFlMdDat = times->modtime + MAC_UNIX_EPOCH_DIFF;
+ else
+ GetDateTime (&cipb.hFileInfo.ioFlMdDat);
+ }
+
+ errno = PBSetCatInfo (&cipb, false);
+ return errno == noErr ? 0 : -1;
+}
+
+#define F_OK 0
+#define X_OK 1
+#define W_OK 2
+
+/* Like stat, but test for access mode in hfpb.ioFlAttrib. */
+int
+access (const char *path, int mode)
+{
+ char MacPathname[MAXPATHLEN+1];
+ CInfoPBRec cipb;
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ c2pstr (MacPathname);
+ cipb.hFileInfo.ioNamePtr = MacPathname;
+ cipb.hFileInfo.ioVRefNum = 0;
+ cipb.hFileInfo.ioDirID = 0;
+ cipb.hFileInfo.ioFDirIndex = 0; /* set to 0 to get information about specific dir or file */
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno != noErr)
+ return -1;
+
+ if (mode == F_OK) /* got this far, file exists */
+ return 0;
+
+ if (mode & X_OK)
+ if (cipb.hFileInfo.ioFlAttrib & 0x10) /* path refers to a directory */
+ return 0;
+ else
+ {
+ if (cipb.hFileInfo.ioFlFndrInfo.fdType == 'APPL')
+ return 0;
+ else
+ return -1;
+ }
+
+ if (mode & W_OK)
+ return (cipb.hFileInfo.ioFlAttrib & 0x1) ? -1 : 0; /* don't allow if lock bit on */
+
+ return -1;
+}
+
+#define DEV_NULL_FD 0x10000
+
+#undef open
+int
+sys_open (const char *path, int oflag)
+{
+ char MacPathname[MAXPATHLEN+1];
+
+ if (strcmp (path, "/dev/null") == 0)
+ return DEV_NULL_FD; /* some bogus fd to be ignored in write */
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+ else
+ return open (MacPathname, oflag);
+}
+
+#undef creat
+int
+sys_creat (const char *path, mode_t mode)
+{
+ char MacPathname[MAXPATHLEN+1];
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+ else
+ return creat (MacPathname, mode);
+}
+
+#undef unlink
+int
+sys_unlink (const char *path)
+{
+ char MacPathname[MAXPATHLEN+1];
+
+ if (Unix2MacPathname (path, MacPathname, MAXPATHLEN+1) == 0)
+ return -1;
+ else
+ return unlink (MacPathname);
+}
+
+#undef read
+int
+sys_read (int fildes, char *buf, int count)
+{
+ if (fildes == 0)
+ { /* if stdin, call (non-echoing) "getch" in console.h */
+ if (MacKeyPending ())
+ { /* don't wait for a key if none has been pressed */
+ *buf = MacGetChar ();
+ return 1;
+ }
+ else
+ return 0;
+ }
+ else
+ return read (fildes, buf, count);
+}
+
+#undef write
+int
+sys_write (int fildes, char *buf, int count)
+{
+ if (fildes == DEV_NULL_FD)
+ return count;
+ else
+ return write (fildes, buf, count);
+}
+
+#undef rename
+int
+sys_rename (const char * old_name, const char * new_name)
+{
+ char MacOldName[MAXPATHLEN+1], MacNewName[MAXPATHLEN+1];
+
+ if (strcmp (old_name, new_name) == 0)
+ return 0;
+
+ if (Unix2MacPathname (old_name, MacOldName, MAXPATHLEN+1) == 0)
+ return 1;
+
+ if (Unix2MacPathname (new_name, MacNewName, MAXPATHLEN+1) == 0)
+ return 1;
+
+ return rename (MacOldName, MacNewName);
+}
+
+#undef fopen
+extern FILE *fopen (const char *name, const char *mode);
+FILE
+sys_fopen (const char *name, const char *mode)
+{
+ char MacPathname[MAXPATHLEN+1];
+
+ if (Unix2MacPathname (name, MacPathname, MAXPATHLEN+1) == 0)
+ return 0;
+ else
+ return fopen (MacPathname, mode);
+}
+
+#include <Events.h>
+
+long targetTicks = 0;
+
+#ifdef __MRC__
+__sigfun alarm_signal_func = (__sigfun) 0;
+#elif __MWERKS__
+__signal_func_ptr alarm_signal_func = (__signal_func_ptr) 0;
+#else
+You lose!!!
+#endif
+
+/* These functions simulate SIG_ALRM. The stub for function signal
+ stores the signal handler function in alarm_signal_func if a
+ SIG_ALRM is encountered. CheckAlarm is called in mac_read_socket,
+ which emacs calls periodically. A pending alarm is represented by
+ a non-zero targetTicks value. CheckAlarm calls the handler
+ function pointed to by alarm_signal_func if one has been set up and
+ an alarm is pending. */
+void
+CheckAlarm ()
+{
+ if (targetTicks && TickCount () > targetTicks)
+ {
+ targetTicks = 0;
+ if (alarm_signal_func)
+ (*alarm_signal_func)(SIGALRM);
+ }
+}
+
+/* Called in sys_select to wait for an alarm signal to arrive. */
+int
+pause ()
+{
+ unsigned long finalTick;
+
+ if (!targetTicks) /* no alarm pending */
+ return -1;
+
+ while (TickCount () <= targetTicks)
+ Delay (1UL, &finalTick); /* wait for 1/60 second before trying again */
+
+ targetTicks = 0;
+ if (alarm_signal_func)
+ (*alarm_signal_func)(SIGALRM);
+
+ return 0;
+}
+
+int
+alarm (int seconds)
+{
+ long remaining = targetTicks ? (TickCount () - targetTicks) / 60 : 0;
+
+ targetTicks = seconds ? TickCount () + 60 * seconds : 0;
+
+ return (remaining < 0) ? 0 : (unsigned int) remaining;
+}
+
+#undef signal
+#ifdef __MRC__
+extern __sigfun signal (int signal, __sigfun signal_func);
+__sigfun
+sys_signal (int signal_num, __sigfun signal_func)
+#elif __MWERKS__
+extern __signal_func_ptr signal (int signal, __signal_func_ptr signal_func);
+__signal_func_ptr
+sys_signal (int signal_num, __signal_func_ptr signal_func)
+#else
+ You lose!!!
+#endif
+{
+ if (signal_num != SIGALRM)
+ return signal (signal_num, signal_func);
+ else
+ {
+#ifdef __MRC__
+ __sigfun old_signal_func;
+#elif __MWERKS__
+ __signal_func_ptr old_signal_func;
+#else
+ You lose!!!
+#endif
+ old_signal_func = alarm_signal_func;
+ alarm_signal_func = signal_func;
+ return old_signal_func;
+ }
+}
+
+/* The time functions adjust time values according to the difference
+ between the Unix and CW epoches. */
+
+#undef gmtime
+extern struct tm *gmtime (const time_t *);
+struct tm
+sys_gmtime (const time_t *timer)
+{
+ time_t unixTime = *timer + CW_UNIX_EPOCH_DIFF;
+
+ return gmtime (&unixTime);
+}
+
+#undef localtime
+extern struct tm *localtime (const time_t *);
+struct tm *
+sys_localtime (const time_t *timer)
+{
+ time_t unixTime = *timer + CW_UNIX_EPOCH_DIFF;
+
+ return localtime (&unixTime);
+}
+
+#undef ctime
+extern char *ctime (const time_t *);
+char *
+sys_ctime (const time_t *timer)
+{
+ time_t unixTime = *timer + CW_UNIX_EPOCH_DIFF;
+
+ return ctime (&unixTime);
+}
+
+#undef time
+extern time_t time (time_t *);
+time_t
+sys_time (time_t *timer)
+{
+ time_t macTime = time (NULL) - CW_UNIX_EPOCH_DIFF;
+
+ if (timer)
+ *timer = macTime;
+
+ return macTime;
+}
+
+/* no subprocesses, empty wait */
+int
+wait (int pid)
+{
+ return 0;
+}
+
+void
+croak (char *badfunc)
+{
+ printf ("%s not yet implemented\r\n", badfunc);
+ exit (1);
+}
+
+char *
+index (const char * str, int chr)
+{
+ return strchr (str, chr);
+}
+
+char *e[] = { 0 };
+char **environ = &e[0];
+
+char *
+mktemp (char *template)
+{
+ int len, k;
+ static seqnum = 0;
+
+ len = strlen (template);
+ k = len - 1;
+ while (k >= 0 && template[k] == 'X')
+ k--;
+
+ k++; /* make k index of first 'X' */
+
+ if (k < len)
+ {
+ /* Zero filled, number of digits equal to the number of X's. */
+ sprintf (&template[k], "%0*d", len-k, seqnum++);
+
+ return template;
+ }
+ else
+ return 0;
+}
+
+/* Emulate getpwuid, getpwnam and others. */
+
+#define PASSWD_FIELD_SIZE 256
+
+static char myPasswdName[PASSWD_FIELD_SIZE];
+static char myPasswdDir[MAXPATHLEN+1];
+
+static struct passwd myPasswd =
+{
+ myPasswdName,
+ myPasswdDir,
+};
+
+/* Initialized by main () in macterm.c to pathname of emacs directory. */
+char emacsPasswdDir[MAXPATHLEN+1];
+
+void
+InitEmacsPasswdDir ()
+{
+ int found = false;
+
+ if (getwd (emacsPasswdDir) && getwd (myPasswdDir))
+ {
+ /* Need pathname of first ancestor that begins with `emacs' since
+ Mac emacs application is somewhere in the emacs-20.3 tree. */
+ int len = strlen (emacsPasswdDir);
+ /* J points to the "/" following the directory name being compared. */
+ int j = len - 1;
+ int i = j - 1;
+ while (i >= 0 && !found)
+ {
+ while (i >= 0 && emacsPasswdDir[i] != '/')
+ i--;
+ if (emacsPasswdDir[i] == '/' && i+5 < len)
+ found = (strncmp (&(emacsPasswdDir[i+1]), "emacs", 5) == 0);
+ if (found)
+ emacsPasswdDir[j+1] = '\0';
+ else
+ {
+ j = i;
+ i = j - 1;
+ }
+ }
+ }
+
+ if (!found)
+ { /* setting to "/" probably won't work,
+ but set it to something anyway. */
+ strcpy (emacsPasswdDir, "/");
+ strcpy (myPasswdDir, "/");
+ }
+}
+
+static struct passwd emacsPasswd =
+{
+ "emacs",
+ emacsPasswdDir,
+};
+
+static int myPasswdInited = 0;
+
+static void
+InitMyPasswd ()
+{
+ char **ownerName;
+
+ /* Note: myPasswdDir initialized in InitEmacsPasswdDir to directory
+ where Emacs was started. */
+
+ ownerName = (char **) GetResource ('STR ',-16096);
+ if (ownerName)
+ {
+ HLock (ownerName);
+ BlockMove ((unsigned char *) *ownerName,
+ (unsigned char *) myPasswdName, *ownerName[0] + 1);
+ HUnlock (ownerName);
+ p2cstr ((unsigned char *) myPasswdName);
+ }
+ else
+ myPasswdName[0] = 0;
+}
+
+struct passwd *
+getpwuid (uid_t uid)
+{
+ if (!myPasswdInited)
+ {
+ InitMyPasswd ();
+ myPasswdInited = 1;
+ }
+
+ return &myPasswd;
+}
+
+struct passwd *
+getpwnam (const char *name)
+{
+ if (strcmp (name, "emacs") == 0)
+ return &emacsPasswd;
+
+ if (!myPasswdInited)
+ {
+ InitMyPasswd ();
+ myPasswdInited = 1;
+ }
+
+ return &myPasswd;
+}
+
+/* The functions fork, kill, sigsetmask, sigblock, request_sigio,
+ setpgrp, setpriority, and unrequest_sigio are defined to be empty
+ as in msdos.c. */
+
+int
+fork ()
+{
+ return -1;
+}
+
+int
+kill (int x, int y)
+{
+ return -1;
+}
+
+int
+sigsetmask (int x)
+{
+ return 0;
+}
+
+int
+sigblock (int mask)
+{
+ return 0;
+}
+
+void
+request_sigio (void)
+{
+}
+
+int
+setpgrp ()
+{
+ return 0;
+}
+
+void
+unrequest_sigio (void)
+{
+}
+
+/* djgpp does not implement pipe either. */
+int
+pipe (int _fildes[2])
+{
+ errno = EACCES;
+ return -1;
+}
+
+/* Hard and symbolic links. */
+int
+symlink (const char *name1, const char *name2)
+{
+ errno = ENOENT;
+ return -1;
+}
+
+int
+link (const char *name1, const char *name2)
+{
+ errno = ENOENT;
+ return -1;
+}
+
+int
+lstat (const char *path, struct stat *sb)
+{
+ return stat (path, sb);
+}
+
+int
+readlink (const char *path, char *buf, int bufsiz)
+{
+ errno = ENOENT;
+ return -1;
+}
+
+mode_t
+umask (mode_t numask)
+{
+ static mode_t mask = 022;
+ mode_t oldmask = mask;
+ mask = numask;
+ return oldmask;
+}
+
+int
+chmod (const char *path, mode_t mode)
+{
+ /* say it always succeed for now */
+ return 0;
+}
+
+int
+dup (int oldd)
+{
+#ifdef __MRC__
+ return fcntl (oldd, F_DUPFD, 0);
+#elif __MWERKS__
+ /* current implementation of fcntl in fcntl.mac.c simply returns old
+ descriptor */
+ return fcntl (oldd, F_DUPFD);
+#else
+You lose!!!
+#endif
+}
+
+/* This is from the original sysdep.c. Emulate BSD dup2. First close
+ newd if it already exists. Then, attempt to dup oldd. If not
+ successful, call dup2 recursively until we are, then close the
+ unsuccessful ones. */
+int
+dup2 (int oldd, int newd)
+{
+ int fd, ret;
+
+ close (newd);
+
+ fd = dup (oldd);
+ if (fd == -1)
+ return -1;
+ if (fd == newd)
+ return newd;
+ ret = dup2 (oldd, newd);
+ close (fd);
+ return ret;
+}
+
+/* let it fail for now */
+char *
+sbrk (int incr)
+{
+ return (char *) -1;
+}
+
+int
+fsync (int fd)
+{
+ return 0;
+}
+
+int
+ioctl (int d, int request, void *argp)
+{
+ return -1;
+}
+
+#ifdef __MRC__
+int
+isatty (int fildes)
+{
+ if (fildes >=0 && fildes <= 2)
+ return 1;
+ else
+ return 0;
+}
+
+int
+getgid ()
+{
+ return 100;
+}
+
+int
+getegid ()
+{
+ return 100;
+}
+
+int
+getuid ()
+{
+ return 200;
+}
+
+int
+geteuid ()
+{
+ return 200;
+}
+
+unsigned int
+sleep (unsigned int seconds)
+{
+ unsigned long finalTick;
+
+ Delay (seconds * 60UL, &finalTick);
+ return (0);
+}
+#endif /* __MRC__ */
+
+#ifdef __MWERKS__
+#undef getpid
+int
+getpid ()
+{
+ return 9999;
+}
+#endif /* __MWERKS__ */
+
+/* Return the path to the directory in which Emacs can create
+ temporary files. The MacOS "temporary items" directory cannot be
+ used because it removes the file written by a process when it
+ exits. In that sense it's more like "/dev/null" than "/tmp" (but
+ again not exactly). And of course Emacs needs to read back the
+ files written by its subprocesses. So here we write the files to a
+ directory "Emacs" in the Preferences Folder. This directory is
+ created if it does not exist. */
+static char *
+GetTempDirName ()
+{
+ static char *TempDirName = NULL;
+ short vRefNum;
+ long dirID;
+ OSErr err;
+ Str255 dirName, fullPath;
+ CInfoPBRec cpb;
+ char unixDirName[MAXPATHLEN+1];
+ DIR *dir;
+
+ /* Cache directory name with pointer TempDirName.
+ Look for it only the first time. */
+ if (!TempDirName)
+ {
+ err = FindFolder (kOnSystemDisk, kPreferencesFolderType,
+ kCreateFolder, &vRefNum, &dirID);
+ if (err != noErr)
+ return NULL;
+
+ *fullPath = '\0';
+ cpb.dirInfo.ioNamePtr = dirName;
+ cpb.dirInfo.ioDrParID = dirID;
+
+ /* Standard ref num to full path name loop */
+ do {
+ cpb.dirInfo.ioVRefNum = vRefNum;
+ cpb.dirInfo.ioFDirIndex = -1;
+ cpb.dirInfo.ioDrDirID = cpb.dirInfo.ioDrParID;
+
+ err = PBGetCatInfo (&cpb, false);
+
+ p2cstr (dirName);
+ strcat (dirName, ":");
+ if (strlen (fullPath) + strlen (dirName) <= MAXPATHLEN)
+ {
+ strcat (dirName, fullPath);
+ strcpy (fullPath, dirName);
+ }
+ else
+ return NULL;
+ }
+ while (cpb.dirInfo.ioDrDirID != fsRtDirID && err == noErr);
+
+ if (strlen (fullPath) + 6 <= MAXPATHLEN)
+ strcat (fullPath, "Emacs:");
+ else
+ return NULL;
+
+ if (Mac2UnixPathname (fullPath, unixDirName, MAXPATHLEN+1) == 0)
+ return NULL;
+
+ dir = opendir (unixDirName); /* check whether temp directory exists */
+ if (dir)
+ closedir (dir);
+ else if (mkdir (unixDirName, 0700) != 0) /* create it if not */
+ return NULL;
+
+ TempDirName = (char *) xmalloc (strlen (unixDirName) + 1);
+ strcpy (TempDirName, unixDirName);
+ }
+
+ return TempDirName;
+}
+
+char *
+getenv (const char * name)
+{
+ if (strcmp (name, "TERM") == 0)
+ return "vt100";
+ else if (strcmp (name, "TERMCAP") == 0)
+ /* for debugging purpose when code was still outputting to dumb terminal */
+ return "d0|vt100|vt100-am|vt100am|dec vt100:do=[do]:co#100:li#32:cl=[cl]:sf=[sf]:km:\
+:le=[le]:bs:am:cm=[cm-%d,%d]:nd=[nd]:up=[up]:ce=[ce]:cd=[cd]:so=[so]:se=[se]:\
+:us=[us]:ue=[ue]:md=[md]:mr=[mr]:mb=[mb]:me=[me]:is=[is]:\
+:rf=/usr/share/lib/tabset/vt100:rs=[rs]:ks=[ks]:ke=[ke]:\
+:ku=\\036:kd=\\037:kr=\\035:kl=\\034:kb=[kb]:ho=[ho]:k1=[k1]:k2=[k2]:k3=[k3]:k4=[k4]:\
+:pt:sr=[sr]:vt#3:xn:sc=[sc]:rc=[rc]:cs=[cs-%d,%d]";
+ else if (strcmp (name, "TMPDIR") == 0)
+ return GetTempDirName ();
+ else
+ return (NULL);
+}
+
+#ifdef __MRC__
+#include <utsname.h>
+
+int
+uname (struct utsname *name)
+{
+ char **systemName;
+ systemName = GetString (-16413); /* IM - Resource Manager Reference */
+ if (systemName)
+ {
+ BlockMove (*systemName, name->nodename, (*systemName)[0]+1);
+ p2cstr (name->nodename);
+ }
+ else
+ return -1;
+}
+#endif
+
+#include <Processes.h>
+#include <EPPC.h>
+
+/* Event class of HLE sent to subprocess. */
+const OSType kEmacsSubprocessSend = 'ESND';
+/* Event class of HLE sent back from subprocess. */
+const OSType kEmacsSubprocessReply = 'ERPY';
+
+char *
+mystrchr (char *s, char c)
+{
+ while (*s && *s != c)
+ {
+ if (*s == '\\')
+ s++;
+ s++;
+ }
+
+ if (*s)
+ {
+ *s = '\0';
+ return s;
+ }
+ else
+ return NULL;
+}
+
+char *
+mystrtok (char *s)
+{
+ while (*s)
+ s++;
+
+ return s + 1;
+}
+
+void
+mystrcpy (char *to, char *from)
+{
+ while (*from)
+ {
+ if (*from == '\\')
+ from++;
+ *to++ = *from++;
+ }
+ *to = '\0';
+}
+
+/* Start a Mac subprocess. Arguments for it is passed in argv (null
+ terminated). The process should run with the default directory
+ "workdir", read input from "infn", and write output and error to
+ "outfn" and "errfn", resp. The Process Manager call
+ LaunchApplication is used to start the subprocess. We use high
+ level events as the mechanism to pass arguments to the subprocess
+ and to make Emacs wait for the subprocess to terminate and pass
+ back a result code. The bulk of the code here packs the arguments
+ into one message to be passed together with the high level event.
+ Emacs also sometimes starts a subprocess using a shell to perform
+ wildcard filename expansion. Since we don't really have a shell on
+ the Mac, this case is detected and the starting of the shell is
+ by-passed. We really need to add code here to do filename
+ expansion to support such functionality. */
+int
+run_mac_command (argv, workdir, infn, outfn, errfn)
+ unsigned char **argv;
+ const char *workdir;
+ const char *infn, *outfn, errfn;
+{
+ char macappname[MAXPATHLEN+1], macworkdir[MAXPATHLEN+1];
+ char macinfn[MAXPATHLEN+1], macoutfn[MAXPATHLEN+1], macerrfn[MAXPATHLEN+1];
+ int paramlen, argc, newargc, j, retries;
+ char **newargv, *param, *p;
+ OSErr iErr;
+ FSSpec spec;
+ LaunchParamBlockRec lpbr;
+ EventRecord sendEvent, replyEvent;
+ RgnHandle cursorRegionHdl;
+ TargetID targ;
+ unsigned long refCon, len;
+
+ if (Unix2MacPathname (workdir, macworkdir, MAXPATHLEN+1) == 0)
+ return -1;
+ if (Unix2MacPathname (infn, macinfn, MAXPATHLEN+1) == 0)
+ return -1;
+ if (Unix2MacPathname (outfn, macoutfn, MAXPATHLEN+1) == 0)
+ return -1;
+ if (Unix2MacPathname (errfn, macerrfn, MAXPATHLEN+1) == 0)
+ return -1;
+
+ paramlen = strlen (macworkdir) + strlen (macinfn) + strlen (macoutfn) + strlen (macerrfn) + 4;
+ /* count nulls at end of strings */
+
+ argc = 0;
+ while (argv[argc])
+ argc++;
+
+ if (argc == 0)
+ return -1;
+
+ /* If a subprocess is invoked with a shell, we receive 3 arguments of the form:
+ "<path to emacs bins>/sh" "-c" "<path to emacs bins>/<command> <command args>" */
+ j = strlen (argv[0]);
+ if (j >= 3 && strcmp (argv[0]+j-3, "/sh") == 0 && argc == 3 && strcmp (argv[1], "-c") == 0)
+ {
+ char *command, *t, tempmacpathname[MAXPATHLEN+1];
+
+ /* The arguments for the command in argv[2] are separated by
+ spaces. Count them and put the count in newargc. */
+ command = (char *) alloca (strlen (argv[2])+2);
+ strcpy (command, argv[2]);
+ if (command[strlen (command) - 1] != ' ')
+ strcat (command, " ");
+
+ t = command;
+ newargc = 0;
+ t = mystrchr (t, ' ');
+ while (t)
+ {
+ newargc++;
+ t = mystrchr (t+1, ' ');
+ }
+
+ newargv = (char **) alloca (sizeof (char *) * newargc);
+
+ t = command;
+ for (j = 0; j < newargc; j++)
+ {
+ newargv[j] = (char *) alloca (strlen (t) + 1);
+ mystrcpy (newargv[j], t);
+
+ t = mystrtok (t);
+ paramlen += strlen (newargv[j]) + 1;
+ }
+
+ if (strncmp (newargv[0], "~emacs/", 7) == 0)
+ {
+ if (Unix2MacPathname (newargv[0], tempmacpathname, MAXPATHLEN+1) == 0)
+ return -1;
+ }
+ else
+ { /* sometimes Emacs call "sh" without a path for the command */
+#if 0
+ char *t = (char *) alloca (strlen (newargv[0]) + 7 + 1);
+ strcpy (t, "~emacs/");
+ strcat (t, newargv[0]);
+#endif
+ Lisp_Object path;
+ openp (Vexec_path, build_string (newargv[0]), EXEC_SUFFIXES, &path, 1);
+
+ if (NILP (path))
+ return -1;
+ if (Unix2MacPathname (XSTRING (path)->data, tempmacpathname, MAXPATHLEN+1) == 0)
+ return -1;
+ }
+ strcpy (macappname, tempmacpathname);
+ }
+ else
+ {
+ if (Unix2MacPathname (argv[0], macappname, MAXPATHLEN+1) == 0)
+ return -1;
+
+ newargv = (char **) alloca (sizeof (char *) * argc);
+ newargc = argc;
+ for (j = 1; j < argc; j++)
+ {
+ if (strncmp (argv[j], "~emacs/", 7) == 0)
+ {
+ char *t = strchr (argv[j], ' ');
+ if (t)
+ {
+ char tempcmdname[MAXPATHLEN+1], tempmaccmdname[MAXPATHLEN+1];
+ strncpy (tempcmdname, argv[j], t-argv[j]);
+ tempcmdname[t-argv[j]] = '\0';
+ if (Unix2MacPathname (tempcmdname, tempmaccmdname, MAXPATHLEN+1) == 0)
+ return -1;
+ newargv[j] = (char *) alloca (strlen (tempmaccmdname) + strlen (t) + 1);
+ strcpy (newargv[j], tempmaccmdname);
+ strcat (newargv[j], t);
+ }
+ else
+ {
+ char tempmaccmdname[MAXPATHLEN+1];
+ if (Unix2MacPathname (argv[j], tempmaccmdname, MAXPATHLEN+1) == 0)
+ return -1;
+ newargv[j] = (char *) alloca (strlen (tempmaccmdname)+1);
+ strcpy (newargv[j], tempmaccmdname);
+ }
+ }
+ else
+ newargv[j] = argv[j];
+ paramlen += strlen (newargv[j]) + 1;
+ }
+ }
+
+ /* After expanding all the arguments, we now know the length of the parameter block to be
+ sent to the subprocess as a message attached to the HLE. */
+ param = (char *) xmalloc (paramlen + 1);
+ if (!param)
+ return -1;
+
+ p = param;
+ *p++ = newargc; /* first byte of message contains number of arguments for command */
+ strcpy (p, macworkdir);
+ p += strlen (macworkdir);
+ *p++ = '\0'; /* null terminate strings sent so it's possible to use strcpy over there */
+ strcpy (p, macinfn);
+ p += strlen (macinfn);
+ *p++ = '\0';
+ strcpy (p, macoutfn);
+ p += strlen (macoutfn);
+ *p++ = '\0';
+ strcpy (p, macerrfn);
+ p += strlen (macerrfn);
+ *p++ = '\0';
+ for (j = 1; j < newargc; j++) {
+ strcpy (p, newargv[j]);
+ p += strlen (newargv[j]);
+ *p++ = '\0';
+ }
+
+ c2pstr (macappname);
+
+ iErr = FSMakeFSSpec (0, 0, macappname, &spec);
+
+ if (iErr != noErr) {
+ xfree (param);
+ return -1;
+ }
+
+ lpbr.launchBlockID = extendedBlock;
+ lpbr.launchEPBLength = extendedBlockLen;
+ lpbr.launchControlFlags = launchContinue + launchNoFileFlags;
+ lpbr.launchAppSpec = &spec;
+ lpbr.launchAppParameters = NULL;
+
+ iErr = LaunchApplication (&lpbr); /* call the subprocess */
+ if (iErr != noErr)
+ {
+ xfree (param);
+ return -1;
+ }
+
+ sendEvent.what = kHighLevelEvent;
+ sendEvent.message = kEmacsSubprocessSend; /* Event ID stored in "where" unused */
+
+ retries = 3;
+ do { /* OS may think current subprocess has terminated if previous one terminated recently */
+ iErr = PostHighLevelEvent (&sendEvent, &lpbr.launchProcessSN, 0, param, paramlen + 1, receiverIDisPSN);
+ }
+ while (iErr == sessClosedErr && retries-- > 0);
+
+ if (iErr != noErr) {
+ xfree (param);
+ return -1;
+ }
+
+ cursorRegionHdl = NewRgn ();
+
+ /* Wait for the subprocess to finish, when it will send us a ERPY high level event */
+ while (1)
+ if (WaitNextEvent (highLevelEventMask, &replyEvent, 180, cursorRegionHdl) && replyEvent.message == kEmacsSubprocessReply)
+ break;
+
+ /* The return code is sent through the refCon */
+ iErr = AcceptHighLevelEvent (&targ, &refCon, NULL, &len);
+ if (iErr != noErr) {
+ DisposeHandle ((Handle) cursorRegionHdl);
+ xfree (param);
+ return -1;
+ }
+
+ DisposeHandle ((Handle) cursorRegionHdl);
+ xfree (param);
+
+ return refCon;
+}
+
+DIR *
+opendir (const char *dirname)
+{
+ char MacPathname[MAXPATHLEN+1];
+ DIR *dirp;
+ CInfoPBRec cipb;
+ int len;
+
+ dirp = (DIR *) xmalloc (sizeof (DIR));
+ if (!dirp)
+ return 0;
+
+ /* Handle special case when dirname is "/": sets up for readir to
+ get all mount volumes. */
+ if (strcmp (dirname, "/") == 0) {
+ dirp->getting_volumes = 1; /* special all mounted volumes DIR struct */
+ dirp->current_index = 1; /* index for first volume */
+ return dirp;
+ }
+
+ /* Handle typical cases: not accessing all mounted volumes. */
+ if (Unix2MacPathname (dirname, MacPathname, MAXPATHLEN+1) == 0)
+ return 0;
+
+ /* Emacs calls opendir without the trailing '/', Mac needs trailing ':' */
+ len = strlen (MacPathname);
+ if (MacPathname[len - 1] != ':' && len < MAXPATHLEN)
+ strcat (MacPathname, ":");
+
+ c2pstr (MacPathname);
+ cipb.hFileInfo.ioNamePtr = MacPathname; /* using full pathname so vRefNum and dirID ignored */
+ cipb.hFileInfo.ioVRefNum = 0;
+ cipb.hFileInfo.ioDirID = 0;
+ cipb.hFileInfo.ioFDirIndex = 0; /* set to 0 to get information about specific dir or file */
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno != noErr) {
+ errno = ENOENT;
+ return 0;
+ }
+
+ if (!(cipb.hFileInfo.ioFlAttrib & 0x10)) /* bit 4 = 1 for directories */
+ return 0; /* not a directory */
+
+ dirp->dir_id = cipb.dirInfo.ioDrDirID; /* used later in readdir */
+ dirp->getting_volumes = 0;
+ dirp->current_index = 1; /* index for first file/directory */
+
+ return dirp;
+}
+
+int
+closedir (DIR *dp)
+{
+ xfree (dp);
+ return 0;
+}
+
+struct dirent *
+readdir (DIR *dp)
+{
+ HParamBlockRec HPBlock;
+ CInfoPBRec cipb;
+ static struct dirent s_dirent;
+ static Str255 s_name;
+ int done;
+
+ /* Handle the root directory containing the mounted volumes. Call
+ PBHGetVInfo specifying an index to obtain the info for a volume.
+ PBHGetVInfo returns an error when it receives an index beyond the
+ last volume, at which time we should return a nil dirent struct
+ pointer. */
+ if (dp->getting_volumes) {
+ HPBlock.volumeParam.ioNamePtr = s_name;
+ HPBlock.volumeParam.ioVRefNum = 0;
+ HPBlock.volumeParam.ioVolIndex = dp->current_index;
+
+ errno = PBHGetVInfo (&HPBlock, false);
+ if (errno != noErr) {
+ errno = ENOENT;
+ return 0;
+ }
+
+ p2cstr (s_name);
+ strcat (s_name, "/"); /* need "/" for stat to work correctly */
+
+ dp->current_index++;
+
+ s_dirent.d_ino = cipb.dirInfo.ioDrDirID;
+ s_dirent.d_name = s_name;
+
+ return &s_dirent;
+ }
+ else {
+ cipb.hFileInfo.ioVRefNum = 0;
+ cipb.hFileInfo.ioNamePtr = s_name; /* location to receive filename returned */
+
+ /* return only visible files */
+ done = false;
+ while (!done) {
+ cipb.hFileInfo.ioDirID = dp->dir_id; /* directory ID found by opendir */
+ cipb.hFileInfo.ioFDirIndex = dp->current_index;
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno != noErr) {
+ errno = ENOENT;
+ return 0;
+ }
+
+ /* insist on an visibile entry */
+ if (cipb.hFileInfo.ioFlAttrib & 0x10) /* directory? */
+ done = !(cipb.dirInfo.ioDrUsrWds.frFlags & fInvisible);
+ else
+ done = !(cipb.hFileInfo.ioFlFndrInfo.fdFlags & fInvisible);
+
+ dp->current_index++;
+ }
+
+ p2cstr (s_name);
+
+ s_dirent.d_ino = cipb.dirInfo.ioDrDirID; /* value unimportant: non-zero for valid file */
+ s_dirent.d_name = s_name;
+
+ return &s_dirent;
+ }
+}
+
+char *
+getwd (char *path)
+{
+ char MacPathname[MAXPATHLEN+1];
+ Str255 directoryName;
+ OSErr errno;
+ CInfoPBRec cipb;
+
+ MacPathname[0] = '\0';
+ directoryName[0] = '\0';
+ cipb.dirInfo.ioDrParID = 0;
+ cipb.dirInfo.ioNamePtr = directoryName; /* empty string = default directory */
+
+ do {
+ cipb.dirInfo.ioVRefNum = 0;
+ cipb.dirInfo.ioFDirIndex = -1;
+ cipb.dirInfo.ioDrDirID = cipb.dirInfo.ioDrParID; /* go up to parent each time */
+
+ errno = PBGetCatInfo (&cipb, false);
+ if (errno != noErr) {
+ errno = ENOENT;
+ return 0;
+ }
+
+ p2cstr (directoryName);
+ strcat (directoryName, ":");
+ strcat (directoryName, MacPathname); /* attach to front since going up directory tree */
+ strcpy (MacPathname, directoryName);
+ } while (cipb.dirInfo.ioDrDirID != fsRtDirID); /* until volume's root directory */
+
+ if (Mac2UnixPathname (MacPathname, path, MAXPATHLEN+1) == 0)
+ return 0;
+ else
+ return path;
+}
+
+#endif /* macintosh */
HCoop / bpt / emacs.git / blobdiff