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#include <stdlib.h>
#include <errno.h>
#include <termios.h>
#include <sys/ioctl.h>
/* very simplistic, ignores a lot of the settings that i don't understand,
* patches welcome */
int cooked()
{
struct termios t;
if (tcgetattr(0, &t) == -1) {
return errno;
}
t.c_lflag |= (ICANON | ISIG | IEXTEN);
t.c_iflag |= (IXON | BRKINT);
return tcsetattr(0, TCSANOW, &t) == 0 ? 0 : errno;
}
int cbreak()
{
struct termios t;
if (tcgetattr(0, &t) == -1) {
return errno;
}
t.c_lflag |= ISIG;
t.c_lflag &= ~(ICANON | IEXTEN);
t.c_iflag |= (IXON | BRKINT);
return tcsetattr(0, TCSANOW, &t) == 0 ? 0 : errno;
}
int raw()
{
struct termios t;
if (tcgetattr(0, &t) == -1) {
return errno;
}
t.c_lflag &= ~(ICANON | ISIG | IEXTEN);
t.c_iflag &= ~(IXON | BRKINT);
return tcsetattr(0, TCSANOW, &t) == 0 ? 0 : errno;
}
int echo(int enabled)
{
struct termios t;
if (tcgetattr(0, &t) == -1) {
return errno;
}
if (enabled) {
t.c_lflag |= ECHO;
}
else {
t.c_lflag &= ~ECHO;
}
return tcsetattr(0, TCSANOW, &t) == 0 ? 0 : errno;
}
struct termios *get()
{
struct termios *t;
t = malloc(sizeof(struct termios));
if (tcgetattr(0, t) == -1) {
return NULL;
}
return t;
}
void set(struct termios *t)
{
if (t == NULL) {
return;
}
tcsetattr(0, TCSANOW, t);
free(t);
}
void size(unsigned int *cols, unsigned int *rows)
{
struct winsize ws;
ioctl(0, TIOCGWINSZ, &ws);
*cols = ws.ws_col;
*rows = ws.ws_row;
}
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