diff options
Diffstat (limited to 'src/misc/openpty.c')
| -rw-r--r-- | src/misc/openpty.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/misc/openpty.c b/src/misc/openpty.c index b6962e13..c1074060 100644 --- a/src/misc/openpty.c +++ b/src/misc/openpty.c @@ -3,33 +3,38 @@ #include <unistd.h> #include <pty.h> #include <stdio.h> +#include <pthread.h> /* Nonstandard, but vastly superior to the standard functions */ int openpty(int *pm, int *ps, char *name, const struct termios *tio, const struct winsize *ws) { - int m, s, n=0; + int m, s, n=0, cs; char buf[20]; m = open("/dev/ptmx", O_RDWR|O_NOCTTY); if (m < 0) return -1; - if (ioctl(m, TIOCSPTLCK, &n) || ioctl (m, TIOCGPTN, &n)) { - close(m); - return -1; - } + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs); + + if (ioctl(m, TIOCSPTLCK, &n) || ioctl (m, TIOCGPTN, &n)) + goto fail; 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 ((s = open(name, O_RDWR|O_NOCTTY)) < 0) + goto fail; if (tio) tcsetattr(s, TCSANOW, tio); if (ws) ioctl(s, TIOCSWINSZ, ws); *pm = m; *ps = s; + + pthread_setcancelstate(cs, 0); return 0; +fail: + close(m); + pthread_setcancelstate(cs, 0); + return -1; } |