Import source code for dummynet innode emulation.

[ipfw.git] / ipfw / glue.c

diff --git a/ipfw/glue.c b/ipfw/glue.c
new file mode 100644 (file)
index 0000000..c70cd18
--- /dev/null
+++ b/ipfw/glue.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2009 Luigi Rizzo, Marta Carbone, Universita` di Pisa
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ *
+ * Userland functions missing in linux
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifndef HAVE_NAT
+/* dummy nat functions */
+void
+ipfw_show_nat(int ac, char **av)
+{
+       fprintf(stderr, "%s unsupported\n", __FUNCTION__);
+}
+
+void
+ipfw_config_nat(int ac, char **av)
+{
+       fprintf(stderr, "%s unsupported\n", __FUNCTION__);
+}
+#endif
+
+#ifdef __linux__
+int optreset;  /* missing in linux */
+#endif
+
+#if defined( __linux__ ) || defined(_WIN32)
+/*
+ * not implemented in linux.
+ * taken from /usr/src/lib/libc/string/strlcpy.c
+ */
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+        char *d = dst;
+        const char *s = src;
+        size_t n = siz;
+ 
+        /* Copy as many bytes as will fit */
+        if (n != 0 && --n != 0) {
+                do {
+                        if ((*d++ = *s++) == 0)
+                                break;
+                } while (--n != 0);
+        }
+
+        /* Not enough room in dst, add NUL and traverse rest of src */
+        if (n == 0) {
+                if (siz != 0)
+                        *d = '\0';              /* NUL-terminate dst */
+                while (*s++)
+                        ;
+        }
+
+        return(s - src - 1);    /* count does not include NUL */
+}
+
+
+/* missing in linux and windows */
+long long int
+strtonum(const char *nptr, long long minval, long long maxval,
+         const char **errstr)
+{
+       return strtoll(nptr, (char **)errstr, 0);
+}
+
+int
+sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
+         size_t newlen)
+{
+       return -1;
+}
+#endif /* __linux__ || _WIN32 */