summaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c')
-rw-r--r--sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c
new file mode 100644
index 0000000000..af6e551510
--- /dev/null
+++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/ifreq.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 2008 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <stddef.h>
+#include <string.h>
+#include <not-cancel.h>
+#include <memory.h>
+
+void
+__ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
+{
+ struct ifconf ifc;
+ int nifs;
+ char *buf = NULL;
+
+ /* Determine number of interfaces. */
+ if (__ioctl (sockfd, SIOCGIFNUM, &nifs) != 0)
+ goto error;
+
+ /* Get interfaces. */
+ ifc.ifc_len = nifs * sizeof(struct ifreq);
+ buf = malloc (ifc.ifc_len);
+ ifc.ifc_buf = buf;
+ if (buf == NULL)
+ goto error;
+ if (__ioctl (sockfd, SIOCGIFCONF, &ifc) != 0)
+ goto error;
+
+ *ifreqs = (struct ifreq *)buf;
+ *num_ifs = nifs;
+ return;
+
+error:
+ *ifreqs = NULL;
+ *num_ifs = 0;
+ free (buf);
+}