2 * io.c -- dv1394d client demo input/output
3 * Copyright (C) 2002-2003 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 /* System header files */
33 /* Application header files */
36 char *chomp( char *input )
40 int length = strlen( input );
41 if ( length && input[ length - 1 ] == '\n' )
42 input[ length - 1 ] = '\0';
43 if ( length > 1 && input[ length - 2 ] == '\r' )
44 input[ length - 2 ] = '\0';
49 char *trim( char *input )
53 int length = strlen( input );
55 while( first < length && isspace( input[ first ] ) )
57 memmove( input, input + first, length - first + 1 );
58 length = length - first;
59 while ( length > 0 && isspace( input[ length - 1 ] ) )
60 input[ -- length ] = '\0';
65 char *strip_quotes( char *input )
69 char *ptr = strrchr( input, '\"' );
72 if ( input[ 0 ] == '\"' )
73 strcpy( input, input + 1 );
78 char *get_string( char *output, int maxlength, char *use )
81 strcpy( output, use );
82 if ( trim( chomp( fgets( output, maxlength, stdin ) ) ) != NULL )
84 if ( !strcmp( output, "" ) )
85 strcpy( output, use );
91 int *get_int( int *output, int use )
96 if ( trim( chomp( fgets( temp, 132, stdin ) ) ) != NULL )
98 if ( strcmp( temp, "" ) )
99 *output = atoi( temp );
105 /** This stores the previous settings
108 static struct termios oldtty;
111 /** This is called automatically on application exit to restore the
112 previous tty settings.
119 tcsetattr( 0, TCSANOW, &oldtty );
124 /** Init terminal so that we can grab keys without blocking.
131 tcgetattr( 0, &tty );
134 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
135 tty.c_oflag |= OPOST;
136 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
137 tty.c_cflag &= ~(CSIZE|PARENB);
139 tty.c_cc[ VMIN ] = 1;
140 tty.c_cc[ VTIME ] = 0;
142 tcsetattr( 0, TCSANOW, &tty );
149 /** Check for a keypress without blocking infinitely.
150 Returns: ASCII value of keypress or -1 if no keypress detected.
164 n = select( 1, &rfds, NULL, NULL, &tv );
167 n = read( 0, &ch, 1 );
168 tcflush( 0, TCIFLUSH );
184 while ( ( pressed = term_read( ) ) == -1 ) ;
187 value = (char)pressed;
192 void wait_for_any_key( char *message )
194 if ( message == NULL )
195 printf( "Press any key to continue: " );
197 printf( "%s", message );