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#define _XOPEN_SOURCE
#include <unistd.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <string.h>
# define MAX_FDS 4
char *ptsname(int fd) {
static char buffer[9+MAX_FDS]; /* Ahh..great */
int pty;
strcpy(buffer,"/dev/pts/");
if ((ioctl(fd, TIOCGPTN, &pty)) == -1) return 0;
__ltostr(buffer+9, MAX_FDS, pty, 10, 0);
return buffer;
}
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