Minix Man Pages
home | helpPTSNAME(3) BSD Library Functions Manual PTSNAME(3) NAME ptsname -- get the pathname of the slave pseudo-terminal device LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <stdlib.h> char * ptsname(int masterfd); DESCRIPTION The ptsname() function returns the pathname of the slave pseudo-terminal device that corresponds to the master pseudo-terminal device associated with masterfd. The ptsname() function is not reentrant or thread-safe. RETURN VALUES If successful, ptsname() returns a pointer to a nul-terminated string containing the pathname of the slave pseudo-terminal device. If an error occurs ptsname() will return NULL and errno is set to indicate the error. ERRORS The ptsname() function will fail if: [EACCESS] the corresponding pseudo-terminal device could not be accessed. [EBADF] masterfd is not a valid descriptor. [EINVAL] masterfd is not associated with a master pseudo- terminal device. NOTES The error returns of ptsname() are a NetBSD extension. The ptsname() function is equivalent to: struct ptmget pm; return ioctl(masterfd, TIOCPTSNAME, &pm) == -1 ? NULL : pm.sn; SEE ALSO ioctl(2), grantpt(3), posix_openpt(3), unlockpt(3) STANDARDS The ptsname() function conforms to IEEE Std 1003.1-2001 ("POSIX.1"). Its first release was in X/Open Portability Guide Issue 4, Version 2 ("XPG4.2"). BSD May 25, 2004 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | NOTES | SEE ALSO | STANDARDS