*/
#include "includes.h"
-RCSID("$OpenBSD: sshpty.c,v 1.10 2003/06/12 07:57:38 markus Exp $");
+RCSID("$OpenBSD: sshpty.c,v 1.11 2004/01/11 21:55:06 deraadt Exp $");
#ifdef HAVE_UTIL_H
# include <util.h>
#include "log.h"
#include "misc.h"
-/* Pty allocated with _getpty gets broken if we do I_PUSH:es to it. */
-#if defined(HAVE__GETPTY) || defined(HAVE_OPENPTY)
-#undef HAVE_DEV_PTMX
-#endif
-
#ifdef HAVE_PTY_H
# include <pty.h>
#endif
-#if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H)
-# include <sys/stropts.h>
-#endif
#ifndef O_NOCTTY
#define O_NOCTTY 0
int
pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen)
{
-#if defined(HAVE_OPENPTY) || defined(BSD4_4)
/* openpty(3) exists in OSF/1 and some other os'es */
char *name;
int i;
strlcpy(namebuf, name, namebuflen); /* possible truncation */
return 1;
-#else /* HAVE_OPENPTY */
-#ifdef HAVE__GETPTY
- /*
- * _getpty(3) exists in SGI Irix 4.x, 5.x & 6.x -- it generates more
- * pty's automagically when needed
- */
- char *slave;
-
- slave = _getpty(ptyfd, O_RDWR, 0622, 0);
- if (slave == NULL) {
- error("_getpty: %.100s", strerror(errno));
- return 0;
- }
- strlcpy(namebuf, slave, namebuflen);
- /* Open the slave side. */
- *ttyfd = open(namebuf, O_RDWR | O_NOCTTY);
- if (*ttyfd < 0) {
- error("%.200s: %.100s", namebuf, strerror(errno));
- close(*ptyfd);
- return 0;
- }
- return 1;
-#else /* HAVE__GETPTY */
-#if defined(HAVE_DEV_PTMX)
- /*
- * This code is used e.g. on Solaris 2.x. (Note that Solaris 2.3
- * also has bsd-style ptys, but they simply do not work.)
- */
- int ptm;
- char *pts;
- mysig_t old_signal;
-
- ptm = open("/dev/ptmx", O_RDWR | O_NOCTTY);
- if (ptm < 0) {
- error("/dev/ptmx: %.100s", strerror(errno));
- return 0;
- }
- old_signal = signal(SIGCHLD, SIG_DFL);
- if (grantpt(ptm) < 0) {
- error("grantpt: %.100s", strerror(errno));
- return 0;
- }
- signal(SIGCHLD, old_signal);
- if (unlockpt(ptm) < 0) {
- error("unlockpt: %.100s", strerror(errno));
- return 0;
- }
- pts = ptsname(ptm);
- if (pts == NULL)
- error("Slave pty side name could not be obtained.");
- strlcpy(namebuf, pts, namebuflen);
- *ptyfd = ptm;
-
- /* Open the slave side. */
- *ttyfd = open(namebuf, O_RDWR | O_NOCTTY);
- if (*ttyfd < 0) {
- error("%.100s: %.100s", namebuf, strerror(errno));
- close(*ptyfd);
- return 0;
- }
-#ifndef HAVE_CYGWIN
- /*
- * Push the appropriate streams modules, as described in Solaris pts(7).
- * HP-UX pts(7) doesn't have ttcompat module.
- */
- if (ioctl(*ttyfd, I_PUSH, "ptem") < 0)
- error("ioctl I_PUSH ptem: %.100s", strerror(errno));
- if (ioctl(*ttyfd, I_PUSH, "ldterm") < 0)
- error("ioctl I_PUSH ldterm: %.100s", strerror(errno));
-#ifndef __hpux
- if (ioctl(*ttyfd, I_PUSH, "ttcompat") < 0)
- error("ioctl I_PUSH ttcompat: %.100s", strerror(errno));
-#endif
-#endif
- return 1;
-#else /* HAVE_DEV_PTMX */
-#ifdef HAVE_DEV_PTS_AND_PTC
- /* AIX-style pty code. */
- const char *name;
-
- *ptyfd = open("/dev/ptc", O_RDWR | O_NOCTTY);
- if (*ptyfd < 0) {
- error("Could not open /dev/ptc: %.100s", strerror(errno));
- return 0;
- }
- name = ttyname(*ptyfd);
- if (!name)
- fatal("Open of /dev/ptc returns device for which ttyname fails.");
- strlcpy(namebuf, name, namebuflen);
- *ttyfd = open(name, O_RDWR | O_NOCTTY);
- if (*ttyfd < 0) {
- error("Could not open pty slave side %.100s: %.100s",
- name, strerror(errno));
- close(*ptyfd);
- return 0;
- }
- return 1;
-#else /* HAVE_DEV_PTS_AND_PTC */
-#ifdef _UNICOS
- char buf[64];
- int i;
- int highpty;
-
-#ifdef _SC_CRAY_NPTY
- highpty = sysconf(_SC_CRAY_NPTY);
- if (highpty == -1)
- highpty = 128;
-#else
- highpty = 128;
-#endif
-
- for (i = 0; i < highpty; i++) {
- snprintf(buf, sizeof(buf), "/dev/pty/%03d", i);
- *ptyfd = open(buf, O_RDWR|O_NOCTTY);
- if (*ptyfd < 0)
- continue;
- snprintf(namebuf, namebuflen, "/dev/ttyp%03d", i);
- /* Open the slave side. */
- *ttyfd = open(namebuf, O_RDWR|O_NOCTTY);
- if (*ttyfd < 0) {
- error("%.100s: %.100s", namebuf, strerror(errno));
- close(*ptyfd);
- return 0;
- }
- return 1;
- }
- return 0;
-#else
- /* BSD-style pty code. */
- char buf[64];
- int i;
- const char *ptymajors = "pqrstuvwxyzabcdefghijklmnoABCDEFGHIJKLMNOPQRSTUVWXYZ";
- const char *ptyminors = "0123456789abcdef";
- int num_minors = strlen(ptyminors);
- int num_ptys = strlen(ptymajors) * num_minors;
- struct termios tio;
-
- for (i = 0; i < num_ptys; i++) {
- snprintf(buf, sizeof buf, "/dev/pty%c%c", ptymajors[i / num_minors],
- ptyminors[i % num_minors]);
- snprintf(namebuf, namebuflen, "/dev/tty%c%c",
- ptymajors[i / num_minors], ptyminors[i % num_minors]);
-
- *ptyfd = open(buf, O_RDWR | O_NOCTTY);
- if (*ptyfd < 0) {
- /* Try SCO style naming */
- snprintf(buf, sizeof buf, "/dev/ptyp%d", i);
- snprintf(namebuf, namebuflen, "/dev/ttyp%d", i);
- *ptyfd = open(buf, O_RDWR | O_NOCTTY);
- if (*ptyfd < 0)
- continue;
- }
-
- /* Open the slave side. */
- *ttyfd = open(namebuf, O_RDWR | O_NOCTTY);
- if (*ttyfd < 0) {
- error("%.100s: %.100s", namebuf, strerror(errno));
- close(*ptyfd);
- return 0;
- }
- /* set tty modes to a sane state for broken clients */
- if (tcgetattr(*ptyfd, &tio) < 0)
- logit("Getting tty modes for pty failed: %.100s", strerror(errno));
- else {
- tio.c_lflag |= (ECHO | ISIG | ICANON);
- tio.c_oflag |= (OPOST | ONLCR);
- tio.c_iflag |= ICRNL;
-
- /* Set the new modes for the terminal. */
- if (tcsetattr(*ptyfd, TCSANOW, &tio) < 0)
- logit("Setting tty modes for pty failed: %.100s", strerror(errno));
- }
-
- return 1;
- }
- return 0;
-#endif /* CRAY */
-#endif /* HAVE_DEV_PTS_AND_PTC */
-#endif /* HAVE_DEV_PTMX */
-#endif /* HAVE__GETPTY */
-#endif /* HAVE_OPENPTY */
}
/* Releases the tty. Its ownership is returned to root, and permissions to 0666. */
if (fd < 0)
error("open /dev/tty failed - could not set controlling tty: %.100s",
strerror(errno));
- else
+ else
close(fd);
#endif /* _UNICOS */
}
andersk / gssapi-openssh.git / blobdiff