couple more get_pty's

3 files changed, 135 insertions, 3 deletions

diff --git a/pppd/sys-bsd.c b/pppd/sys-bsd.c
index 27c5689..60a7927 100644
--- a/pppd/sys-bsd.c
+++ b/pppd/sys-bsd.c
@@ -21,7 +21,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: sys-bsd.c,v 1.41 1999/03/22 05:55:36 paulus Exp $";
+static char rcsid[] = "$Id: sys-bsd.c,v 1.42 1999/04/01 07:20:10 paulus Exp $";
 /*	$NetBSD: sys-bsd.c,v 1.1.1.3 1997/09/26 18:53:04 christos Exp $	*/
 #endif
 
@@ -460,6 +460,38 @@ int fd, on;
     ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
 }
 
+/*
+ * get_pty - get a pty master/slave pair and chown the slave side
+ * to the uid given.  Assumes slave_name points to >= 12 bytes of space.
+ */
+int
+get_pty(master_fdp, slave_fdp, slave_name, uid)
+    int *master_fdp;
+    int *slave_fdp;
+    char *slave_name;
+    int uid;
+{
+    struct termios tios;
+
+    if (openpty(master_fdp, slave_fdp, slave_name, NULL, NULL) < 0)
+	return 0;
+
+    fchown(*slave_fdp, uid, -1);
+    fchmod(*slave_fdp, S_IRUSR | S_IWUSR);
+    if (tcgetattr(*slave_fdp, &tios) == 0) {
+	tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB);
+	tios.c_cflag |= CS8 | CREAD;
+	tios.c_iflag  = IGNPAR | CLOCAL;
+	tios.c_oflag  = 0;
+	tios.c_lflag  = 0;
+	if (tcsetattr(*slave_fdp, TCSAFLUSH, &tios) < 0)
+	    warn("couldn't set attributes on pty: %m");
+    } else
+	warn("couldn't get attributes on pty: %m");
+
+    return 1;
+}
+
 
 /*
  * open_ppp_loopback - open the device we use for getting
diff --git a/pppd/sys-osf.c b/pppd/sys-osf.c
index 94b3dd2..45e176f 100644
--- a/pppd/sys-osf.c
+++ b/pppd/sys-osf.c
@@ -26,7 +26,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: sys-osf.c,v 1.23 1999/03/22 05:55:38 paulus Exp $";
+static char rcsid[] = "$Id: sys-osf.c,v 1.24 1999/04/01 07:20:10 paulus Exp $";
 #endif
 
 #include <stdio.h>
@@ -1609,6 +1609,56 @@ get_host_seed()
 }
 
 /*
+ * get_pty - get a pty master/slave pair and chown the slave side
+ * to the uid given.  Assumes slave_name points to >= 12 bytes of space.
+ */
+int
+get_pty(master_fdp, slave_fdp, slave_name, uid)
+    int *master_fdp;
+    int *slave_fdp;
+    char *slave_name;
+    int uid;
+{
+    int i, mfd, sfd;
+    char pty_name[12];
+    struct termios tios;
+
+    sfd = -1;
+    for (i = 0; i < 64; ++i) {
+	slprintf(pty_name, sizeof(pty_name), "/dev/pty%c%x",
+		 'p' + i / 16, i % 16);
+	mfd = open(pty_name, O_RDWR, 0);
+	if (mfd >= 0) {
+	    pty_name[5] = 't';
+	    sfd = open(pty_name, O_RDWR | O_NOCTTY, 0);
+	    if (sfd >= 0)
+		break;
+	    close(mfd);
+	}
+    }
+    if (sfd < 0)
+	return 0;
+
+    strlcpy(slave_name, pty_name, 12);
+    *master_fdp = mfd;
+    *slave_fdp = sfd;
+    fchown(sfd, uid, -1);
+    fchmod(sfd, S_IRUSR | S_IWUSR);
+    if (tcgetattr(sfd, &tios) == 0) {
+	tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB);
+	tios.c_cflag |= CS8 | CREAD;
+	tios.c_iflag  = IGNPAR | CLOCAL;
+	tios.c_oflag  = 0;
+	tios.c_lflag  = 0;
+	if (tcsetattr(sfd, TCSAFLUSH, &tios) < 0)
+	    warn("couldn't set attributes on pty: %m");
+    } else
+	warn("couldn't get attributes on pty: %m");
+
+    return 1;
+}
+
+/*
  * Code for locking/unlocking the serial device.
  * This code is derived from chat.c.
  */
diff --git a/pppd/sys-sunos4.c b/pppd/sys-sunos4.c
index d0b1ac0..ea3deeb 100644
--- a/pppd/sys-sunos4.c
+++ b/pppd/sys-sunos4.c
@@ -26,7 +26,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: sys-sunos4.c,v 1.18 1999/03/22 05:55:39 paulus Exp $";
+static char rcsid[] = "$Id: sys-sunos4.c,v 1.19 1999/04/01 07:20:11 paulus Exp $";
 #endif
 
 #include <stdio.h>
@@ -1481,6 +1481,56 @@ unlock()
 }
 
 /*
+ * get_pty - get a pty master/slave pair and chown the slave side
+ * to the uid given.  Assumes slave_name points to >= 12 bytes of space.
+ */
+int
+get_pty(master_fdp, slave_fdp, slave_name, uid)
+    int *master_fdp;
+    int *slave_fdp;
+    char *slave_name;
+    int uid;
+{
+    int i, mfd, sfd;
+    char pty_name[12];
+    struct termios tios;
+
+    sfd = -1;
+    for (i = 0; i < 64; ++i) {
+	slprintf(pty_name, sizeof(pty_name), "/dev/pty%c%x",
+		 'p' + i / 16, i % 16);
+	mfd = open(pty_name, O_RDWR, 0);
+	if (mfd >= 0) {
+	    pty_name[5] = 't';
+	    sfd = open(pty_name, O_RDWR | O_NOCTTY, 0);
+	    if (sfd >= 0)
+		break;
+	    close(mfd);
+	}
+    }
+    if (sfd < 0)
+	return 0;
+
+    strlcpy(slave_name, pty_name, 12);
+    *master_fdp = mfd;
+    *slave_fdp = sfd;
+    fchown(sfd, uid, -1);
+    fchmod(sfd, S_IRUSR | S_IWUSR);
+    if (tcgetattr(sfd, &tios) == 0) {
+	tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB);
+	tios.c_cflag |= CS8 | CREAD;
+	tios.c_iflag  = IGNPAR | CLOCAL;
+	tios.c_oflag  = 0;
+	tios.c_lflag  = 0;
+	if (tcsetattr(sfd, TCSAFLUSH, &tios) < 0)
+	    warn("couldn't set attributes on pty: %m");
+    } else
+	warn("couldn't get attributes on pty: %m");
+
+    return 1;
+}
+
+/*
  * SunOS doesn't have strtoul :-(
  */
 unsigned long