* files for more information.
*/
+#include <stdlib.h>
#include <sys/file.h>
-#include <sys/fcntl.h>
+#include <sys/types.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;
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());
/* 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. */