set prototyped

header sys/types.h

header pty.h

header libutil.h

header sys/pty.h

header sys/ptyio.h

header sys/vty.h

header sys/ioctl.h

header stropts.h

lib openpty,_getpty,ptsname -lutil

lib grantpt,unlockpt,posix_openpt stdlib.h

tst - output{

#include <sys/types.h>

#include <sys/stat.h>

#if _lib_ptsname && _npt_ptsname

_BEGIN_EXTERNS_

#if _STD_

extern char* ptsname(int);

#else

extern char* ptsname();

#endif

#endif

_END_EXTERNS_

int main()

{

int i;

struct stat statb;

static char* pty[] = { "/dev/ptyp0000", "/dev/ptym/ptyp0", "/dev/ptyp0" };

#if _lib_ptsname

int fd;

static char* ptc[] = { "/dev/ptmx", "/dev/ptc", "/dev/ptmx_bsd" };

for (i = 0; i < sizeof(ptc) / sizeof(ptc[0]); i++)

if((fd = open(ptc[i], 2))>=0)

{

if (ptsname(fd))

{

printf("#define _pty_clone\t\"%s\"\n", ptc[i]);

close(fd);

break;

}

close(fd);

}

#endif

for (i = 0;; i++)

if(i >= (sizeof(pty) / sizeof(pty[0]) - 1) || stat(pty[i], &statb)>=0)

{

printf("#define _pty_first\t\"%s\"\n", pty[i]);

break;

}

return 0;

}

}end

extern _getpty char* (int*, int, mode_t, int)

extern openpty int (int*, int*, char*, struct termios*, struct winsize*)

extern ptsname char* (int)