btstack/platform/posix/stdin_support.c
2016-01-20 16:00:45 +01:00

128 lines
3.7 KiB
C

/*
* Copyright (C) 2014 BlueKitchen GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#include <errno.h>
#include <stdio.h>
#include "btstack_run_loop.h"
#include <stdlib.h>
#include "stdin_support.h"
#ifndef _WIN32
#include <termios.h>
#endif
static btstack_data_source_t stdin_source;
static int activated = 0;
void btstack_stdin_setup(int (*stdin_process)(btstack_data_source_t *_ds)){
#ifndef _WIN32
struct termios term = {0};
if (tcgetattr(0, &term) < 0)
perror("tcsetattr()");
term.c_lflag &= ~ICANON;
term.c_lflag &= ~ECHO;
if (tcsetattr(0, TCSANOW, &term) < 0) {
perror("tcsetattr ICANON");
}
#endif
stdin_source.fd = 0; // stdin
stdin_source.process = stdin_process;
btstack_run_loop_add_data_source(&stdin_source);
activated = 1;
}
void btstack_stdin_reset(void){
if (!activated) return;
activated = 0;
btstack_run_loop_remove_data_source(&stdin_source);
#ifndef _WIN32
struct termios term = {0};
if (tcgetattr(0, &term) < 0){
perror("tcsetattr()");
}
term.c_lflag |= ICANON;
term.c_lflag |= ECHO;
if (tcsetattr(0, TCSANOW, &term) < 0){
perror("tcsetattr ICANON");
}
#endif
}
static int getstring(char *line, int size)
{
int i = 0;
while (1){
int ch = getchar();
if ( ch == '\n' || ch == EOF ) {
printf("\n");
break;
}
if ( ch == '\b' || ch == 0x7f){
printf("\b \b");
i--;
continue;
}
putchar(ch);
line[i++] = ch;
}
line[i] = 0;
return i;
}
uint32_t btstack_stdin_query_int(const char * fieldName){
printf("Please enter new int value for %s:\n", fieldName);
char buffer[80];
getstring(buffer, sizeof(buffer));
return atoi(buffer);
}
uint32_t btstack_stdin_query_hex(const char * fieldName){
printf("Please enter new hex value for %s:\n", fieldName);
char buffer[80];
getstring(buffer, sizeof(buffer));
uint32_t value;
sscanf(buffer, "%x", &value);
return value;
}