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Comparing libptytty/src/ptytty.C (file contents):
Revision 1.41 by sf-exg, Fri Nov 11 15:11:18 2011 UTC vs.
Revision 1.52 by sf-exg, Thu Jan 19 20:07:14 2012 UTC

1// This file is part of libptytty. Do not make local modifications.
2// http://software.schmorp.de/pkg/libptytty
3
4/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
5 * File: ptytty.C 2 * File: ptytty.C
6 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
7 * 4 *
8 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
… …
27 24
28#include "config.h" 25#include "config.h"
29 26
30#include "ptytty.h" 27#include "ptytty.h"
31 28
32#include <cstdlib> 29#include <stdlib.h>
30#include <stdio.h>
33#include <cstring> 31#include <string.h>
34#include <csignal>
35 32
36#include <sys/types.h> 33#include <sys/types.h>
37#include <sys/stat.h> 34#include <sys/stat.h>
38#include <unistd.h> 35#include <unistd.h>
39#include <fcntl.h> 36#include <fcntl.h>
40 37
41#ifdef HAVE_SYS_IOCTL_H 38#ifdef HAVE_SYS_IOCTL_H
42# include <sys/ioctl.h> 39# include <sys/ioctl.h>
43#endif 40#endif
44#if defined(HAVE_SYS_STROPTS_H) 41#ifdef HAVE_STROPTS_H
45# include <sys/stropts.h> /* for I_PUSH */
46#endif
47#if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H)
48# include <stropts.h> 42# include <stropts.h>
49#endif 43#endif
50#if defined(HAVE_PTY_H) 44#if defined(HAVE_PTY_H)
51# include <pty.h> 45# include <pty.h>
52#elif defined(HAVE_LIBUTIL_H) 46#elif defined(HAVE_LIBUTIL_H)
… …
56#endif 50#endif
57#ifdef TTY_GID_SUPPORT 51#ifdef TTY_GID_SUPPORT
58#include <grp.h> 52#include <grp.h>
59#endif 53#endif
60 54
61#include <cstdio> 55#ifndef O_NOCTTY
56# define O_NOCTTY 0
57#endif
62 58
63///////////////////////////////////////////////////////////////////////////// 59/////////////////////////////////////////////////////////////////////////////
64 60
65/* ------------------------------------------------------------------------- * 61/* ------------------------------------------------------------------------- *
66 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 62 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
… …
76 get_pty (int *fd_tty, char **ttydev) 72 get_pty (int *fd_tty, char **ttydev)
77 { 73 {
78 int pfd; 74 int pfd;
79 75
80# if defined(HAVE_GETPT) 76# if defined(HAVE_GETPT)
81 pfd = getpt(); 77 pfd = getpt ();
82# elif defined(HAVE_POSIX_OPENPT) 78# elif defined(HAVE_POSIX_OPENPT)
83 pfd = posix_openpt (O_RDWR | O_NOCTTY); 79 pfd = posix_openpt (O_RDWR | O_NOCTTY);
84# else 80# else
85# ifdef _AIX 81# ifdef _AIX
86 pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0); 82 pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0);
… …
130 get_pty (int *fd_tty, char **ttydev) 126 get_pty (int *fd_tty, char **ttydev)
131 { 127 {
132 int pfd; 128 int pfd;
133 char *slave; 129 char *slave;
134 130
135 slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 131 slave = _getpty (&pfd, O_RDWR | O_NOCTTY, 0622, 0);
136 132
137 if (slave != NULL) 133 if (slave != NULL)
138 { 134 {
139 *ttydev = strdup (slave); 135 *ttydev = strdup (slave);
140 return pfd; 136 return pfd;
… …
156 const char *majors = "pqrstuvwxyzabcde"; 152 const char *majors = "pqrstuvwxyzabcde";
157 const char *minors = "0123456789abcdef"; 153 const char *minors = "0123456789abcdef";
158 154
159 for (i = 0; i < 256; i++) 155 for (i = 0; i < 256; i++)
160 { 156 {
161 snprintf(pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]); 157 snprintf (pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]);
162 snprintf(tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]); 158 snprintf (tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]);
163 159
164 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) 160 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
165 { 161 {
166 snprintf(pty_name, 32, "/dev/ptyp%d", i); 162 snprintf (pty_name, 32, "/dev/ptyp%d", i);
167 snprintf(tty_name, 32, "/dev/ttyp%d", i); 163 snprintf (tty_name, 32, "/dev/ttyp%d", i);
168 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) 164 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
169 continue; 165 continue;
170 } 166 }
171 167
172 if (access (tty_name, R_OK | W_OK) == 0) 168 if (access (tty_name, R_OK | W_OK) == 0)
… …
328ptytty_unix::get () 324ptytty_unix::get ()
329{ 325{
330 /* get master (pty) */ 326 /* get master (pty) */
331 if ((pty = get_pty (&tty, &name)) < 0) 327 if ((pty = get_pty (&tty, &name)) < 0)
332 return false; 328 return false;
333
334 fcntl (pty, F_SETFL, O_NONBLOCK);
335 329
336 /* get slave (tty) */ 330 /* get slave (tty) */
337 if (tty < 0) 331 if (tty < 0)
338 { 332 {
339#ifndef NO_SETOWNER_TTYDEV 333#ifndef NO_SETOWNER_TTYDEV
… …
376 ioctl (tty, I_PUSH, "ldterm"); 370 ioctl (tty, I_PUSH, "ldterm");
377 ioctl (tty, I_PUSH, "ttcompat"); 371 ioctl (tty, I_PUSH, "ttcompat");
378 } 372 }
379#endif 373#endif
380 374
375#if UTMP_SUPPORT
376# if defined(HAVE_STRUCT_UTMP) && !defined(HAVE_UTMP_PID)
377 int fd_stdin = dup (STDIN_FILENO);
378 dup2 (tty, STDIN_FILENO);
379
380 utmp_pos = ttyslot ();
381
382 dup2 (fd_stdin, STDIN_FILENO);
383 close (fd_stdin);
384# endif
385#endif
386
381 return true; 387 return true;
382} 388}
383 389

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