*---------------------------------------------------------------------*/
#include "../config.h" /* NECESSARY */
+#include "rxvt.h"
-/*
- * Try to be self-contained except for the above autoconfig'd defines
- */
-
-#if 0
-#ifdef HAVE_GETPT
-# define _GNU_SOURCE
-#endif
-#endif
-
-#include <cstdio>
#ifdef HAVE_STDLIB_H
# include <cstdlib>
#endif
# include <stropts.h>
#endif
-#ifdef DEBUG_TTY
-# define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr)
-#else
-# define D_TTY(x)
+#if defined( __FreeBSD__)
+// better do this via configure, but....
+# include <libutil.h>
#endif
+#include <cstdio>
+#include <grp.h>
+
/* ------------------------------------------------------------------------- *
* GET PSEUDO TELETYPE - MASTER AND SLAVE *
* ------------------------------------------------------------------------- */
* If successful, ttydev is set to the name of the slave device.
* fd_tty _may_ also be set to an open fd to the slave device
*/
-/* EXTPROTO */
-int
-rxvt_get_pty (int *fd_tty, const char **ttydev)
+static int
+get_pty (int *fd_tty, char **ttydev)
{
int pfd;
#ifdef PTYS_ARE_OPENPTY
-
char tty_name[sizeof "/dev/pts/????\0"];
if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1)
# ifdef PTYS_ARE_GETPT
pfd = getpt ();
# else
-
pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
# endif
if (grantpt (pfd) == 0 /* change slave permissions */
&& unlockpt (pfd) == 0)
{ /* slave now unlocked */
- *ttydev = ptsname (pfd); /* get slave's name */
+ *ttydev = strdup (ptsname (pfd)); /* get slave's name */
return pfd;
}
close (pfd);
#ifdef PTYS_ARE_PTC
if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
{
- *ttydev = ttyname (pfd);
+ *ttydev = strdup (ttyname (pfd));
return pfd;
}
#endif
#ifdef PTYS_ARE_CLONE
if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
{
- *ttydev = ptsname (pfd);
+ *ttydev = strdup (ptsname (pfd));
return pfd;
}
#endif
#ifdef PTYS_ARE_NUMERIC
{
- int idx;
- char *c1, *c2;
- char pty_name[] = "/dev/ptyp???";
- char tty_name[] = "/dev/ttyp???";
+ int idx;
+ char *c1, *c2;
+ char pty_name[] = "/dev/ptyp???";
+ char tty_name[] = "/dev/ttyp???";
- c1 = & (pty_name[sizeof (pty_name) - 4]);
- c2 = & (tty_name[sizeof (tty_name) - 4]);
+ c1 = &(pty_name[sizeof (pty_name) - 4]);
+ c2 = &(tty_name[sizeof (tty_name) - 4]);
for (idx = 0; idx < 256; idx++)
{
sprintf (c1, "%d", idx);
idx = 256;
break;
}
+
if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
{
if (access (tty_name, R_OK | W_OK) == 0)
*ttydev = strdup (tty_name);
return pfd;
}
+
close (pfd);
}
}
}
#endif
+
#ifdef PTYS_ARE_SEARCHED
{
- const char *c1, *c2;
- char pty_name[] = "/dev/pty??";
- char tty_name[] = "/dev/tty??";
+ const char *c1, *c2;
+ char pty_name[] = "/dev/pty??";
+ char tty_name[] = "/dev/tty??";
# ifndef PTYCHAR1
# define PTYCHAR1 "pqrstuvwxyz"
*ttydev = strdup (tty_name);
return pfd;
}
+
close (pfd);
}
}
}
}
#endif
+
return -1;
}
/*
* Returns tty file descriptor, or -1 on failure
*/
-/* EXTPROTO */
-int
-rxvt_get_tty (const char *ttydev)
+static int
+get_tty (char *ttydev)
{
return open (ttydev, O_RDWR | O_NOCTTY, 0);
}
/*
* Make our tty a controlling tty so that /dev/tty points to us
*/
-/* EXTPROTO */
-int
-rxvt_control_tty (int fd_tty, const char *ttydev)
+static int
+control_tty (int fd_tty, const char *ttydev)
{
#ifndef __QNX__
int fd;
- D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev));
/* ---------------------------------------- */
# ifdef HAVE_SETSID
setsid ();
# elif defined(HAVE_SETPGRP)
setpgrp (0, 0);
# endif
+
/* ---------------------------------------- */
# ifdef TIOCNOTTY
-
fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
- D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes"));
if (fd >= 0)
{
ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
close (fd);
}
# endif
+
/* ---------------------------------------- */
fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
- D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)"));
if (fd >= 0)
close (fd); /* ouch: still have controlling tty */
+
/* ---------------------------------------- */
#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
/*
if (isastream (fd_tty) == 1)
# endif
{
- D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules"));
ioctl (fd_tty, I_PUSH, "ptem");
ioctl (fd_tty, I_PUSH, "ldterm");
ioctl (fd_tty, I_PUSH, "ttcompat");
/* ---------------------------------------- */
# if defined(TIOCSCTTY)
fd = ioctl (fd_tty, TIOCSCTTY, NULL);
- D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd));
# elif defined(TIOCSETCTTY)
fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
- D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd));
# else
fd = open (ttydev, O_RDWR);
- D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK"));
if (fd >= 0)
close (fd);
# endif
/* ---------------------------------------- */
fd = open ("/dev/tty", O_WRONLY);
- D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)"));
if (fd < 0)
return -1; /* fatal */
close (fd);
/* ---------------------------------------- */
- D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ()));
- /* ---------------------------------------- */
#endif /* ! __QNX__ */
return 0;
}
+
+#ifndef NO_SETOWNER_TTYDEV
+static struct ttyconf {
+ gid_t gid;
+ mode_t mode;
+
+ ttyconf ()
+ {
+#ifdef TTY_GID_SUPPORT
+ struct group *gr = getgrnam ("tty");
+
+ if (gr)
+ { /* change group ownership of tty to "tty" */
+ mode = S_IRUSR | S_IWUSR | S_IWGRP;
+ gid = gr->gr_gid;
+ }
+ else
+#endif /* TTY_GID_SUPPORT */
+ {
+ mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
+ gid = getgid ();
+ }
+ }
+} ttyconf;
+
+void
+rxvt_ptytty::privileges (rxvt_privaction action)
+{
+ rxvt_privileges (RESTORE);
+
+ if (action == SAVE)
+ {
+ //next_tty_action = RESTORE;
+# ifndef RESET_TTY_TO_COMMON_DEFAULTS
+ /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
+ if (lstat (name, &savestat) < 0) /* you lose out */
+ ;//next_tty_action = IGNORE;
+ else
+# endif
+
+ {
+ chown (name, getuid (), ttyconf.gid); /* fail silently */
+ chmod (name, ttyconf.mode);
+# ifdef HAVE_REVOKE
+ revoke (name);
+# endif
+
+ }
+ }
+ else
+ { /* action == RESTORE */
+ //next_tty_action = IGNORE;
+# ifndef RESET_TTY_TO_COMMON_DEFAULTS
+ chmod (name, savestat.st_mode);
+ chown (name, savestat.st_uid, savestat.st_gid);
+# else
+ chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
+ chown (name, 0, 0);
+# endif
+
+ }
+
+ rxvt_privileges (IGNORE);
+}
+#endif
+
+rxvt_ptytty::rxvt_ptytty ()
+{
+ pty = tty = -1;
+ name = 0;
+}
+
+rxvt_ptytty::~rxvt_ptytty ()
+{
+ put ();
+}
+
+void
+
+rxvt_ptytty::close_tty ()
+{
+ if (tty >= 0) close (tty);
+ tty = -1;
+}
+
+void
+rxvt_ptytty::put ()
+{
+#ifndef NO_SETOWNER_TTYDEV
+ if (tty >= 0)
+ privileges (RESTORE);
+#endif
+
+ if (pty >= 0) close (pty);
+ close_tty ();
+ free (name);
+
+ pty = tty = -1;
+ name = 0;
+}
+
+bool
+rxvt_ptytty::make_controlling_tty ()
+{
+ return control_tty (tty, name) >= 0;
+}
+
+bool
+rxvt_ptytty::get ()
+{
+ /* get master (pty) */
+ if ((pty = get_pty (&tty, &name)) < 0)
+ return false;
+
+ fcntl (pty, F_SETFL, O_NONBLOCK);
+
+ /* get slave (tty) */
+ if (tty < 0)
+ {
+#ifndef NO_SETOWNER_TTYDEV
+ privileges (SAVE);
+#endif
+
+ if ((tty = get_tty (name)) < 0)
+ {
+ put ();
+ return false;
+ }
+ }
+
+ return true;
+}
+
/*----------------------- end-of-file (C source) -----------------------*/
+
projects / dana / urxvt.git / commitdiff