* cygwin.din: Add symbols flockfile, ftrylockfile, funlockfile,

	getgrgid_r, getgrnam_r and getlogin_r.
	* grp.cc (getgrgid_r): New function.
	(getgrnam_r): Ditto.
	* syscalls.cc (flockfile): Ditto.
	(ftrylockfile): Ditto.
	(funlockfile): Ditto.
	* sysconf.cc (sysconf): Return LOGIN_NAME_MAX in case of
	_SC_LOGIN_NAME_MAX.
	* thread.cc (__cygwin_lock_trylock): Define int.  Return value from
	call to pthread_mutex_trylock.
	* uinfo.cc (getlogin_r): New function.
	* include/limits.h: Define LOGIN_NAME_MAX.
	* include/cygwin/version.h: Bump API minor number.
	* include/sys/lock.h: Add declarations for __cygwin_lock_xxx functions.
	* include/sys/stdio.h: Add define for _ftrylockfile.

1 files changed, 14 insertions, 0 deletions

diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc
index 231347e1f..2bf164ff6 100644
--- a/winsup/cygwin/uinfo.cc
+++ b/winsup/cygwin/uinfo.cc
@@ -166,6 +166,20 @@ uinfo_init ()
   cygheap->user.set_saved_sid ();	/* Update the original sid */
 }
 
+extern "C" int
+getlogin_r (char *name, size_t namesize)
+{
+  char *login = getlogin ();
+  size_t len = strlen (login) + 1;
+  if (len > namesize)
+    return ERANGE;
+  int err = __check_null_invalid_struct (name, len);
+  if (err)
+    return err;
+  strncpy (name, login, len);
+  return 0;
+}
+
 extern "C" char *
 getlogin (void)
 {