1 files changed, 72 insertions, 0 deletions
diff --git a/c/src/exec/libnetworking/libc/ascii2addr.c b/c/src/exec/libnetworking/libc/ascii2addr.c
new file mode 100644
index 0000000000..0b5bab427f
--- /dev/null
+++ b/c/src/exec/libnetworking/libc/ascii2addr.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 1996 Massachusetts Institute of Technology
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby
+ * granted, provided that both the above copyright notice and this
+ * permission notice appear in all copies, that both the above
+ * copyright notice and this permission notice appear in all
+ * supporting documentation, and that the name of M.I.T. not be used
+ * in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.  M.I.T. makes
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied
+ * warranty.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
+ * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
+ * SHALL M.I.T. 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.
+ *
+ *	$ANA: ascii2addr.c,v 1.2 1996/06/13 18:46:02 wollman Exp $
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+#include <string.h>
+
+#include <net/if_dl.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+int
+ascii2addr(af, ascii, result)
+	int af;
+	const char *ascii;
+	void *result;
+{
+	struct in_addr *ina;
+	char strbuf[4*sizeof("123")]; /* long enough for V4 only */
+
+	switch(af) {
+	case AF_INET:
+		ina = result;
+		strbuf[0] = '\0';
+		strncat(strbuf, ascii, (sizeof strbuf)-1);
+		if (inet_aton(strbuf, ina))
+			return sizeof(struct in_addr);
+		errno = EINVAL;
+		break;
+
+	case AF_LINK:
+		link_addr(ascii, result);
+		/* oops... no way to detect failure */
+		return sizeof(struct sockaddr_dl);
+
+	default:
+		errno = EPROTONOSUPPORT;
+		break;
+	}
+
+	return -1;
+}