/tests/test-openpty.c
C | 111 lines | 69 code | 15 blank | 27 comment | 10 complexity | ff09cde68980e0a01ecf24a8d3e3ccd2 MD5 | raw file
- /* Test of pty.h and openpty function.
- Copyright (C) 2009-2022 Free Software Foundation, Inc.
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <https://www.gnu.org/licenses/>. */
- /* Written by Simon Josefsson <simon@josefsson.org>, 2009
- and Bruno Haible <bruno@clisp.org>, 2010. */
- #include <config.h>
- #include <pty.h>
- #include "signature.h"
- SIGNATURE_CHECK (openpty, int, (int *, int *, char *, struct termios const *,
- struct winsize const *));
- #include <stdio.h>
- #include <string.h>
- #include <termios.h>
- #include <unistd.h>
- int
- main ()
- {
- {
- #ifndef _WIN32
- int master;
- int slave;
- /* Open a pseudo-terminal, as a master-slave pair. */
- {
- int res = openpty (&master, &slave, NULL, NULL, NULL);
- if (res != 0)
- {
- fprintf (stderr, "openpty returned %d\n", res);
- return 1;
- }
- }
- /* Set the terminal characteristics.
- On Linux or Mac OS X, they can be set on either the master or the slave;
- the effect is the same. But on Solaris, they have to be set on the
- master; tcgetattr on the slave fails. */
- {
- int tcfd = slave; /* You can try tcfd = master; here. */
- struct termios attributes;
- if (tcgetattr (tcfd, &attributes) < 0)
- {
- fprintf (stderr, "tcgetattr failed\n");
- return 1;
- }
- /* Enable canonical processing, including erase. */
- attributes.c_lflag |= ECHO | ICANON | ECHOE;
- attributes.c_cc[VERASE] = '\177';
- if (tcsetattr (tcfd, TCSANOW, &attributes) < 0)
- {
- fprintf (stderr, "tcsetattr failed\n");
- return 1;
- }
- }
- /* Write into the master side. */
- {
- static const char input[] = "Hello worst\177\177ld!\n";
- if (write (master, input, strlen (input)) < (int) strlen (input))
- {
- fprintf (stderr, "write failed\n");
- return 1;
- }
- }
- /* Read from the slave side. */
- {
- char buf[100];
- int res = read (slave, buf, sizeof (buf));
- static const char expected[] = "Hello world!\n";
- if (res < 0)
- {
- fprintf (stderr, "read failed\n");
- return 1;
- }
- if (!(res == strlen (expected)
- && memcmp (buf, expected, strlen (expected)) == 0))
- {
- fprintf (stderr, "read result unexpected\n");
- return 1;
- }
- }
- /* Close the master side before the slave side gets closed.
- This is necessary on Mac OS X 10.4.11. */
- close (master);
- #endif
- }
- return 0;
- }