From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Feb 2011 00:22:29 -0500 Subject: initial check-in, version 0.5.0 --- src/misc/openpty.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/misc/openpty.c (limited to 'src/misc/openpty.c') diff --git a/src/misc/openpty.c b/src/misc/openpty.c new file mode 100644 index 00000000..0b4eb221 --- /dev/null +++ b/src/misc/openpty.c @@ -0,0 +1,33 @@ +#include +#include +#include +#include +#include + +/* Nonstandard, but vastly superior to the standard functions */ + +int openpty(int *m, int *s, char *name, const struct termios *tio, const struct winsize *ws) +{ + int n=0; + char buf[20]; + + *m = open("/dev/ptmx", O_RDWR|O_NOCTTY); + if (!*m) return -1; + + if (ioctl(*m, TIOCSPTLCK, &n) || ioctl (*m, TIOCGPTN, &n)) { + close(*m); + return -1; + } + + if (!name) name = buf; + snprintf(name, sizeof buf, "/dev/pts/%d", n); + if ((*s = open(name, O_RDWR|O_NOCTTY)) < 0) { + close(*m); + return -1; + } + + if (tio) tcsetattr(*s, TCSANOW, tio); + if (ws) ioctl(*s, TIOCSWINSZ, ws); + + return 0; +} -- cgit v1.2.1