diff options
Diffstat (limited to 'src/terminal.c')
| -rw-r--r-- | src/terminal.c | 67 |
1 files changed, 22 insertions, 45 deletions
diff --git a/src/terminal.c b/src/terminal.c index 44513ce..2715d89 100644 --- a/src/terminal.c +++ b/src/terminal.c @@ -1,5 +1,5 @@ /* -Copyright (c) 2008-2010 +Copyright (c) 2008-2014 Lars-Dominik Braun <lars@6xq.net> Permission is hereby granted, free of charge, to any person obtaining a copy @@ -21,61 +21,38 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -#ifndef __FreeBSD__ -#define _POSIX_C_SOURCE 1 /* fileno() */ -#define _BSD_SOURCE /* setlinebuf() */ -#define _DARWIN_C_SOURCE /* setlinebuf() on OS X */ -#endif - #include <termios.h> #include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <signal.h> #include "terminal.h" -/* en/disable echoing for stdin - * @param 1 = enable, everything else = disable - */ -void BarTermSetEcho (char enable) { - struct termios termopts; +/* need a global variable here, since these functions get called from a signal + * handler */ +static struct termios restore; - tcgetattr (fileno (stdin), &termopts); - if (enable == 1) { - termopts.c_lflag |= ECHO; - } else { - termopts.c_lflag &= ~ECHO; - } - tcsetattr(fileno (stdin), TCSANOW, &termopts); +/* init terminal attributes when continuing, assuming the shell modified them; + * tcget/setattr and signal are async signal safe */ +static void BarTermHandleCont (int sig) { + BarTermInit (); } -/* en/disable stdin buffering; when enabling line-buffer method will be - * selected for you - * @param 1 = enable, everything else = disable - */ -void BarTermSetBuffer (char enable) { - struct termios termopts; +void BarTermInit () { + struct termios newopt; - tcgetattr (fileno (stdin), &termopts); - if (enable == 1) { - termopts.c_lflag |= ICANON; - setlinebuf (stdin); - } else { - termopts.c_lflag &= ~ICANON; - setvbuf (stdin, NULL, _IONBF, 1); - } - tcsetattr(fileno (stdin), TCSANOW, &termopts); -} + tcgetattr (STDIN_FILENO, &restore); + memcpy (&newopt, &restore, sizeof (newopt)); + + /* disable echoing and line buffer */ + newopt.c_lflag &= ~(ECHO | ICANON); + tcsetattr (STDIN_FILENO, TCSANOW, &newopt); -/* Save old terminal settings - * @param save settings here - */ -void BarTermSave (struct termios *termOrig) { - tcgetattr (fileno (stdin), termOrig); + signal (SIGCONT, BarTermHandleCont); } -/* Restore terminal settings - * @param Old settings - */ -void BarTermRestore (struct termios *termOrig) { - tcsetattr (fileno (stdin), TCSANOW, termOrig); +void BarTermRestore () { + tcsetattr (STDIN_FILENO, TCSANOW, &restore); } |