(canon_host): Use malloc and memcpy to copy an

address, not strdup.  Include <stdlib.h> and don't declare free().

diff --git a/lib/canon-host.c b/lib/canon-host.c
index 180057c..74c36f6 100644 (file)
--- a/lib/canon-host.c
+++ b/lib/canon-host.c
@@ -26,6 +26,9 @@
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
 #ifdef HAVE_STRING_H
 # include <string.h>
 #endif
@@ -46,7 +49,6 @@
 #ifndef strdup
 char *strdup ();
 #endif
-void free ();
 
 /* Returns the canonical hostname associated with HOST (allocated in a static
    buffer), or 0 if it can't be determined.  */
@@ -80,11 +82,12 @@ canon_host (const char *host)
             directly to gethostbyaddr because on some systems he->h_addr
             is located in a static library buffer that is reused in the
             gethostbyaddr call.  Make a copy and use that instead.  */
-         char *h_addr_copy = strdup (he->h_addr);
+         char *h_addr_copy = (char *) malloc (he->h_length);
          if (h_addr_copy == NULL)
            he = NULL;
          else
            {
+             memcpy (h_addr_copy, he->h_addr, he->h_length);
              he = gethostbyaddr (h_addr_copy, he->h_length, he->h_addrtype);
              free (h_addr_copy);
            }