--- iputils/ping.c	2005-05-18 01:37:05.621810488 -0400
+++ iputils/ping.c.new	2005-05-18 01:41:27.113018222 -0400
@@ -101,7 +101,7 @@ static struct {
 int cmsg_len;
 
 struct sockaddr_in source;
-char *device;
+char *device=NULL;
 int pmtudisc = -1;
 
 
@@ -177,7 +177,7 @@ main(int argc, char **argv)
 				ptr[3] = i4;
 				options |= F_STRICTSOURCE;
 			} else {
-				device = optarg;
+				device = strdup(optarg);
 			}
 			break;
 		}
--- iputils/ping6.c	2005-05-18 01:37:05.620833925 -0400
+++ iputils/ping6.c.new	2005-05-18 01:41:23.599346390 -0400
@@ -155,7 +155,7 @@ static int pr_icmph(__u8 type, __u8 code
 static void usage(void) __attribute((noreturn));
 
 struct sockaddr_in6 source;
-char *device;
+char *device=NULL;
 int pmtudisc=-1;
 
 static int icmp_sock;
@@ -248,7 +248,7 @@ int main(int argc, char *argv[])
 				}
 				options |= F_STRICTSOURCE;
 			} else {
-				device = optarg;
+				device = strdup(optarg);
 			}
 			break;
 		case 'M':