GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.6 |
|
 |
ptsname(3) |
 |
ptsname, ptsname_r − get the name of the slave pseudo-terminal
#define
_XOPEN_SOURCE
#include <stdlib.h>
char *ptsname(int fd);
#define
_GNU_SOURCE
#include <stdlib.h>
char *ptsname_r(int fd, char * buf, size_t buflen);
The ptsname() function returns the name of the slave pseudo-terminal (pty) device corresponding to the master referred to by fd.
The ptsname_r() function is the reentrant equivalent of ptsname(). It returns the name of the slave pseudo-terminal device as a null-terminated string in the buffer pointed to by buf. The buflen argument specifies the number of bytes available in buf.
On success, ptsname() returns a pointer to a string in static storage which will be overwritten by subsequent calls. This pointer must not be freed. On failure, a NULL pointer is returned.
On success, ptsname_r() returns 0. On failure, a non-zero value is returned and errno is set to indicate the error.
|
EINVAL |
(ptsname_r() only) buf is NULL. | ||
|
ENOTTY |
fd does not refer to a pseudo-terminal master device. | ||
|
ERANGE |
(ptsname_r() only) buf is too small. |
ptsname() is part of the Unix98 pseudo-terminal support (see pts(4)). This function is specified in POSIX.1-2001.
ptsname_r() is a Linux extension. A version of this function is documented on Tru64 and HP-UX, but on those implementations, −1 is returned on error, with errno set to indicate the error. Avoid using this function in portable programs.
grantpt(3), posix_openpt(3), ttyname(3), unlockpt(3), pts(4), pty(7)
|
ptsname(3) | |