.TH PTOPEN 3 .SH NAME ptopen \- find and open a pseudo-terminal file .SH SYNOPSIS .nf .B int ptopen (name) .B char \(**name; .fi .SH DESCRIPTION .I Ptopen searches for a pseudo-terminal file pair it can open. If successful, it returns a file descriptor for the odd-numbered member of the pair, and places the name of the even-numbered member in .I name. There must be enough room in .I name to contain the full pathname. If unsuccessful, .hy 0 .I ptopen returns a negative value. .SH SEE ALSO pt(4)