/* Test of <net/if.h> functions.
- Copyright (C) 2010 Free Software Foundation, Inc.
+ Copyright (C) 2010-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/* Written by Simon Josefsson <simon@josefsson.org>, 2010. */
#include <config.h>
+
#include <net/if.h>
+
+/* We do not yet have replacements for if_* functions on systems that
+ lack a native <net/if.h>. */
+#if HAVE_NET_IF_H && HAVE_IF_NAMEINDEX
+# include "signature.h"
+SIGNATURE_CHECK (if_freenameindex, void, (struct if_nameindex *));
+SIGNATURE_CHECK (if_indextoname, char *, (unsigned int, char *));
+SIGNATURE_CHECK (if_nameindex, struct if_nameindex *, (void));
+SIGNATURE_CHECK (if_nametoindex, unsigned int, (const char *));
+#endif
+
#include <stddef.h> /* NULL */
-#include <stdio.h> /* printf */
+#include <stdio.h> /* fprintf */
int
main (int argc, char *argv[])
{
- struct if_nameindex ifn, *ifnp, *p;
- void (*if_fni) (struct if_nameindex *) = if_freenameindex;
- char *(*if_itn)(unsigned, char *) = if_indextoname;
- struct if_nameindex *(*if_ni)(void) = if_nameindex;
- unsigned (*if_nti)(const char *) = if_nametoindex;
-
- ifn.if_index = 42;
- ifn.if_name = "foo";
+#if HAVE_NET_IF_H && HAVE_IF_NAMEINDEX
+ struct if_nameindex *ifnp, *p;
p = ifnp = if_nameindex ();
if (ifnp == NULL)
{
- printf ("if_nameindex returned NULL\n");
+ fputs ("if_nameindex returned NULL\n", stderr);
return 1;
}
while (p->if_index)
{
- unsigned idx;
+ unsigned int idx;
char buf[IF_NAMESIZE];
char *q;
idx = if_nametoindex (p->if_name);
if (idx != p->if_index)
{
- printf ("if_nametoindex (%s) = %d != %d\n",
- p->if_name, idx, p->if_index);
+ fprintf (stderr, "if_nametoindex (%s) = %d != %d\n",
+ p->if_name, idx, p->if_index);
return 1;
}
q = if_indextoname (p->if_index, buf);
if (q == NULL)
{
- printf ("if_indextoname (%d) returned NULL\n", p->if_index);
+ fprintf (stderr, "if_indextoname (%d) returned NULL\n", p->if_index);
return 1;
}
if (q != buf)
{
- printf ("if_indextoname (%d) buffer mismatch?\n", p->if_index);
+ fprintf (stderr, "if_indextoname (%d) buffer mismatch?\n",
+ p->if_index);
return 1;
}
if (strcmp (p->if_name, q) != 0)
{
- printf ("if_indextoname (%s) = %s ?!\n", p->if_name, q);
+ fprintf (stderr, "if_indextoname (%s) = %s ?!\n", p->if_name, q);
return 1;
}
}
if_freenameindex (ifnp);
+#endif /* HAVE_NET_IF_H */
+#if !HAVE_NET_IF_H || HAVE_IF_NAMEINDEX
+ {
+ static struct if_nameindex ni;
+ return !IF_NAMESIZE + ni.if_index + !!ni.if_name;
+ }
+#else
return 0;
+#endif
}