* files for more information.
*/
+#include "sbcl.h"
+
+#ifndef LISP_FEATURE_WIN32
+
+#include <stdlib.h>
#include <sys/file.h>
-#include <sys/fcntl.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include <sys/ioctl.h>
-#ifdef SVR4
#include <unistd.h>
-#endif
+
+#include <sys/ioctl.h>
+#include <termios.h>
+
+
+/* borrowed from detachtty's detachtty.c, in turn borrowed from APUE
+ * example code found at
+ * http://www.yendor.com/programming/unix/apue/pty/main.c
+
+-brkint
+
+ */
+
+int set_noecho(int fd)
+{
+ struct termios stermios;
+
+ if (tcgetattr(fd, &stermios) < 0) return 0;
+
+ stermios.c_lflag &= ~( ECHO | /* ECHOE | ECHOK | */ ECHONL);
+ stermios.c_oflag |= (ONLCR);
+ stermios.c_iflag &= ~(BRKINT);
+ stermios.c_iflag |= (ICANON|ICRNL);
+
+ stermios.c_cc[VERASE]=0177;
+ if (tcsetattr(fd, TCSANOW, &stermios) < 0) return 0;
+ return 1;
+}
int spawn(char *program, char *argv[], char *envp[], char *pty_name,
- int stdin, int stdout, int stderr)
+ int stdin, int stdout, int stderr)
{
int pid = fork();
int fd;
+ sigset_t sset;
if (pid != 0)
- return pid;
+ return pid;
/* Put us in our own process group. */
#if defined(hpux)
setsid();
-#elif defined(SVR4)
+#elif defined(SVR4) || defined(__linux__) || defined(__osf__)
setpgrp();
#else
setpgrp(0, getpid());
#endif
+ /* unblock signals */
+ sigemptyset(&sset);
+ sigprocmask(SIG_SETMASK, &sset, NULL);
+
/* If we are supposed to be part of some other pty, go for it. */
if (pty_name) {
#if !defined(hpux) && !defined(SVR4)
- fd = open("/dev/tty", O_RDWR, 0);
- if (fd >= 0) {
- ioctl(fd, TIOCNOTTY, 0);
- close(fd);
- }
+ fd = open("/dev/tty", O_RDWR, 0);
+ if (fd >= 0) {
+ ioctl(fd, TIOCNOTTY, 0);
+ close(fd);
+ }
#endif
-
- fd = open(pty_name, O_RDWR, 0);
- dup2(fd, 0);
- dup2(fd, 1);
- dup2(fd, 2);
- close(fd);
- }
-
+ fd = open(pty_name, O_RDWR, 0);
+ dup2(fd, 0);
+ set_noecho(0);
+ dup2(fd, 1);
+ dup2(fd, 2);
+ close(fd);
+ } else{
/* Set up stdin, stdout, and stderr */
if (stdin >= 0)
- dup2(stdin, 0);
+ dup2(stdin, 0);
if (stdout >= 0)
- dup2(stdout, 1);
+ dup2(stdout, 1);
if (stderr >= 0)
- dup2(stderr, 2);
-
+ dup2(stderr, 2);
+ }
/* Close all other fds. */
#ifdef SVR4
for (fd = sysconf(_SC_OPEN_MAX)-1; fd >= 3; fd--)
- close(fd);
+ close(fd);
#else
for (fd = getdtablesize()-1; fd >= 3; fd--)
- close(fd);
+ close(fd);
#endif
/* Exec the program. */
/* The exec didn't work, flame out. */
exit(1);
}
+#else /* !LISP_FEATURE_WIN32 */
+
+# include <windows.h>
+# include <process.h>
+# include <stdio.h>
+# include <stdlib.h>
+# include <fcntl.h>
+# include <io.h>
+
+#define READ_HANDLE 0
+#define WRITE_HANDLE 1
+
+/* These functions do not attempt to deal with wchar_t variations. */
+
+/* Get the value of _environ maintained by MSVCRT */
+char **msvcrt_environ ( void ) {
+ return ( _environ );
+}
+
+/* Set up in, out, err pipes and spawn a program, waiting or otherwise. */
+HANDLE spawn (
+ const char *program,
+ const char *const *argv,
+ int in,
+ int out,
+ int err,
+ int wait
+ )
+{
+ int fdOut, fdIn, fdErr, fdInPipe[2], fdOutPipe[2], fdErrPipe[2], wait_mode;
+ HANDLE hProcess;
+
+ /* Make pipes to be passed to the spawned process as in/out/err */
+ if ( _pipe ( fdOutPipe, 512, O_TEXT | O_NOINHERIT ) == -1 ) return (HANDLE)-1;
+ if ( _pipe ( fdInPipe, 512, O_TEXT | O_NOINHERIT ) == -1 ) return (HANDLE)-1;
+ if ( _pipe ( fdErrPipe, 512, O_TEXT | O_NOINHERIT ) == -1 ) return (HANDLE)-1;
+
+ /* Duplicate and save original in/out/err handles */
+ fdOut = _dup ( out );
+ fdIn = _dup ( in );
+ fdErr = _dup ( err );
+
+ /* Duplicate write end of new pipes to current out/err handles,
+ * read to in */
+ if ( _dup2 ( fdOutPipe[WRITE_HANDLE], out ) != 0 ) return (HANDLE)-1;
+ if ( _dup2 ( fdInPipe[READ_HANDLE], in ) != 0 ) return (HANDLE)-1;
+ if ( _dup2 ( fdErrPipe[WRITE_HANDLE], err ) != 0 ) return (HANDLE)-1;
+
+
+ /* Close the duplicated handles to the new pipes */
+ close ( fdOutPipe[WRITE_HANDLE] );
+ close ( fdInPipe[READ_HANDLE] );
+ close ( fdErrPipe[WRITE_HANDLE] );
+
+ /* Set the wait mode. */
+ if ( 0 == wait ) {
+ wait_mode = P_NOWAIT;
+ } else {
+ wait_mode = P_WAIT;
+ }
+
+ /* Spawn process given on the command line*/
+ hProcess = (HANDLE) spawnvp ( wait_mode, program, argv );
+
+ /* Now that the process is launched, replace the original
+ * in/out/err handles */
+ if ( _dup2 ( fdOut, out ) != 0 ) return (HANDLE)-1;
+ if ( _dup2 ( fdIn, in ) != 0 ) return (HANDLE)-1;
+ if ( _dup2 ( fdErr, err ) != 0 ) return (HANDLE)-1;
+
+ /* Close duplicates */
+ close(fdOut);
+ close(fdIn);
+ close(fdErr);
+
+ return ( hProcess );
+}
+
+
+#endif /* !LISP_FEATURE_WIN32 */