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34 lines
676 B
34 lines
676 B
15 years ago
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <pty.h>
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#include <stdio.h>
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/* Nonstandard, but vastly superior to the standard functions */
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int openpty(int *m, int *s, char *name, const struct termios *tio, const struct winsize *ws)
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{
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int n=0;
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char buf[20];
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*m = open("/dev/ptmx", O_RDWR|O_NOCTTY);
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if (!*m) return -1;
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if (ioctl(*m, TIOCSPTLCK, &n) || ioctl (*m, TIOCGPTN, &n)) {
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close(*m);
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return -1;
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}
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if (!name) name = buf;
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snprintf(name, sizeof buf, "/dev/pts/%d", n);
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if ((*s = open(name, O_RDWR|O_NOCTTY)) < 0) {
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close(*m);
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return -1;
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}
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if (tio) tcsetattr(*s, TCSANOW, tio);
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if (ws) ioctl(*s, TIOCSWINSZ, ws);
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return 0;
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}
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