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Merge pull request #241 from pwpiwi/ukbhit_fix

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fix: ukbhit() for OS X
This commit is contained in:
Iceman 2017-03-22 22:39:28 +01:00 • committed by GitHub
commit 9b952b29eb
1 changed files with 11 additions and 11 deletions
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22
client/util.c
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@ -27,6 +27,7 @@
#ifndef _WIN32
#include <termios.h>
#include <sys/ioctl.h>
#include <unistd.h>
int ukbhit(void)
{
@ -34,19 +35,18 @@ int ukbhit(void)
int error;
static struct termios Otty, Ntty;
if ( tcgetattr( 0, &Otty) == -1 ) return -1;
if ( tcgetattr(STDIN_FILENO, &Otty) == -1 ) return -1;
Ntty = Otty;
Ntty.c_iflag = 0; /* input mode */
Ntty.c_oflag = 0; /* output mode */
Ntty.c_lflag &= ~ICANON; /* raw mode */
Ntty.c_cc[VMIN] = CMIN; /* minimum time to wait */
Ntty.c_cc[VTIME] = CTIME; /* minimum characters to wait for */
if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) {
error += ioctl(0, FIONREAD, &cnt);
error += tcsetattr(0, TCSANOW, &Otty);
Ntty.c_iflag = 0x0000; // input mode
Ntty.c_oflag = 0x0000; // output mode
Ntty.c_lflag &= ~ICANON; // control mode = raw
Ntty.c_cc[VMIN] = 1; // return if at least 1 character is in the queue
Ntty.c_cc[VTIME] = 0; // no timeout. Wait forever
if (0 == (error = tcsetattr(STDIN_FILENO, TCSANOW, &Ntty))) { // set new attributes
error += ioctl(STDIN_FILENO, FIONREAD, &cnt); // get number of characters availabe
error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes
}
return ( error == 0 ? cnt : -1 );