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-rw-r--r--stdlib/stdlib.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
index eb9d25e..bf7b263 100644
--- a/stdlib/stdlib.h
+++ b/stdlib/stdlib.h
@@ -733,16 +733,20 @@ extern int grantpt __P ((int __fd));
Call after grantpt(). */
extern int unlockpt __P ((int __fd));
-/* Get the name of the slave. */
+/* Return the pathname of the pseudo terminal slave assoicated with
+ the master FD is open on, or NULL on errors.
+ The returned storage is good until the next call to this function. */
extern char *ptsname __P ((int __fd));
#endif
#ifdef __USE_GNU
-/* Reentrant version of ptsname. */
-extern char *__ptsname_r __P ((int __fd, char *__buf, unsigned int __len));
-extern char *ptsname_r __P ((int __fd, char *__buf, unsigned int __len));
+/* Store at most BUFLEN characters of the pathname of the slave pseudo
+ terminal associated with the master FD is open on in BUF.
+ Return 0 on success, otherwise an error number. */
+extern int __ptsname_r __P ((int __fd, char *__buf, size_t __buflen));
+extern int ptsname_r __P ((int __fd, char *__buf, size_t __buflen));
-/* Open a master pseudo tty and return its file descriptor. */
+/* Open a master pseudo terminal and return its file descriptor. */
extern int __getpt __P ((void));
extern int getpt __P ((void));
#endif