Alex Chernyakhovsky
325098ac07
Previously, mosh used extensive -I flags and all of the mosh-local makes it really hard to tell what the proper dependency graph is, so instead remove the -I arguments in favvor of $(top_srcdir) and qualify the paths wherever they are used.
128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
/*
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Mosh: the mobile shell
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Copyright 2012 Keith Winstein
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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In addition, as a special exception, the copyright holders give
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permission to link the code of portions of this program with the
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OpenSSL library under certain conditions as described in each
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individual source file, and distribute linked combinations including
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the two.
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You must obey the GNU General Public License in all respects for all
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of the code used other than OpenSSL. If you modify file(s) with this
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exception, you may extend this exception to your version of the
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file(s), but you are not obligated to do so. If you do not wish to do
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so, delete this exception statement from your version. If you delete
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this exception statement from all source files in the program, then
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also delete it here.
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*/
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#include "src/include/config.h"
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#if HAVE_PTY_H
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#include <pty.h>
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#elif HAVE_UTIL_H
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#include <util.h>
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#endif
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#if FORKPTY_IN_LIBUTIL
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#include <libutil.h>
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#endif
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#include "src/util/pty_compat.h"
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#include "src/util/swrite.h"
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int main( int argc, char *argv[] )
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{
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if (argc < 2) {
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fprintf( stderr, "usage: inpty COMMAND [ARGS...]\n" );
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return 1;
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}
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struct winsize winsize;
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memset( &winsize, 0, sizeof( winsize ) );
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winsize.ws_col = 80;
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winsize.ws_row = 24;
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int saved_stderr = dup(STDERR_FILENO);
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if ( saved_stderr < 0 ) {
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perror( "dup" );
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return 1;
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}
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int master;
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pid_t child = forkpty( &master, NULL, NULL, &winsize );
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if ( child == -1 ) {
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perror( "forkpty" );
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/* The Debian and Ubuntu build systems fail to set up a working
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* /dev/ptmx (https://bugs.debian.org/817236). There is not much
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* we can do about that except skip the test. In the future when
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* this is fixed, we should turn this into an failure.
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*/
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return 77;
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} else if ( child == 0 ) {
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if ( dup2( saved_stderr, STDERR_FILENO ) < 0 ) {
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perror( "dup2" );
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exit( 1 );
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}
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if ( close( saved_stderr ) < 0 ) {
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perror( "close" );
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exit( 1 );
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}
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if ( execvp( argv[1], argv + 1 ) < 0 ) {
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perror( "execve" );
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exit( 1 );
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}
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exit( 0 );
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}
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while ( 1 ) {
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char buf[ 1024 ];
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ssize_t bytes_read = read( master, buf, sizeof( buf ) );
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if ( bytes_read == 0 || ( bytes_read < 0 && errno == EIO ) ) { /* EOF */
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break;
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} else if ( bytes_read < 0 ) {
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perror( "read" );
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return 1;
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}
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swrite( STDOUT_FILENO, buf, bytes_read );
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}
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int wstatus;
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if ( waitpid( child, &wstatus, 0 ) < 0 ) {
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perror( "waitpid" );
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return 1;
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}
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if ( WIFSIGNALED( wstatus ) ) {
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fprintf( stderr, "inpty: child exited with signal %d\n", WTERMSIG( wstatus ) );
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raise( WTERMSIG( wstatus ) );
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return -1;
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} else {
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return WIFEXITED( wstatus ) ? WEXITSTATUS( wstatus ) : -1;
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}
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}
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