Add libbroken.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@417 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/roken/inet_aton.c

@@ -0,0 +1,38 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+RCSID("$Id$");
+
+
+/* Minimal implementation of inet_aton. Doesn't handle hex numbers. */
+
+int inet_aton(char *cp, struct in_addr *adr)
+{
+  unsigned int a, b, c, d;
+
+  int num;
+  
+  num = sscanf(cp, "%u.%u.%u.%u", &a, &b, &c, &d);
+
+  if(num < 2)
+    return 0;
+
+  if(num == 2){
+    c = b & 0xffff;
+    b = b >> 16;
+  }
+  if(num < 4){
+    d = c & 0xff;
+    c = c >> 8;
+  }
+
+  if(a > 255 || b > 255 || c > 255 || d > 255)
+    return 0;
+  adr->s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
+  return 1;
+}