3 files changed, 143 insertions, 0 deletions
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 649a2a4c49..9b54b5f04a 100644
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -136,6 +136,14 @@ DEFUN(__fpathconf, (fd, name), int fd AND int name)
 #else
       return -1;
 #endif
+
+    case _PC_SOCK_MAXBUF:
+#ifdef	SOCK_MAXBUF
+      return SOCK_MAXBUF;
+#else
+      errno = ENOSYS;
+      return -1;
+#endif
     }
 
   errno = ENOSYS;
diff --git a/sysdeps/posix/isfdtype.c b/sysdeps/posix/isfdtype.c
new file mode 100644
index 0000000000..9ac38a8b9f
--- /dev/null
+++ b/sysdeps/posix/isfdtype.c
@@ -0,0 +1,37 @@
+/* isfdtype - Determine whether descriptor has given property.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+
+int
+isfdtype (int fildes, int fdtype)
+{
+  struct stat st;
+  int result;
+
+  {
+    int save_error = errno;
+    result = fstat (fildes, &st);
+    errno = save_error;
+  }
+
+  return result ?: (st.st_mode & S_IFMT) == fdtype;
+}
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index a52258fee2..f0dbc23606 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -336,6 +336,104 @@ DEFUN(__sysconf, (name), int name)
       return -1;
 #endif
 
+    case _SC_PII:
+#ifdef	_POSIX_PII
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_XTI:
+#ifdef	_POSIX_PII_XTI
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_SOCKET:
+#ifdef	_POSIX_PII_SOCKET
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET:
+#ifdef	_POSIX_PII_INTERNET
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI:
+#ifdef	_POSIX_PII_OSI
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_POLL:
+#ifdef	_POSIX_POLL
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_SELECT:
+#ifdef	_POSIX_SELECT
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_UIO_MAXIOV:
+#ifdef	UIO_MAXIOV
+      return UIO_MAXIOV;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET_STREAM:
+#ifdef	_POSIX_PII_INTERNET_STREAM
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_INTERNET_DGRAM:
+#ifdef	_POSIX_PII_INTERNET_DGRAM
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_COTS:
+#ifdef	_POSIX_PII_OSI_COTS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_CLTS:
+#ifdef	_POSIX_PII_OSI_CLTS
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_PII_OSI_M:
+#ifdef	_POSIX_PII_OSI_M
+      return 1;
+#else
+      return -1;
+#endif
+
+    case _SC_T_IOV_MAX:
+#ifdef	_T_IOV_MAX
+      return _T_IOV_MAX;
+#else
+      return -1;
+#endif
+
     case _SC_2_VERSION:
       /* This is actually supposed to return the version
 	 of the 1003.2 utilities on the system {POSIX2_VERSION}.  */