1 files changed, 46 insertions, 0 deletions
diff --git a/auxiliary/name-addr-test/gethostbyaddr.c b/auxiliary/name-addr-test/gethostbyaddr.c
new file mode 100644
index 0000000..b973901
--- /dev/null
+++ b/auxiliary/name-addr-test/gethostbyaddr.c
@@ -0,0 +1,46 @@
+ /*
+  * gethostbyaddr tester. compile with:
+  * 
+  * cc -o gethostbyaddr gethostbyaddr.c (SunOS 4.x)
+  * 
+  * cc -o gethostbyaddr gethostbyaddr.c -lnsl (SunOS 5.x)
+  * 
+  * run as: gethostbyaddr address
+  * 
+  * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
+  */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdio.h>
+
+main(argc, argv)
+int     argc;
+char  **argv;
+{
+    struct hostent *hp;
+    long    addr;
+
+    if (argc != 2) {
+	fprintf(stderr, "usage: %s i.p.address\n", argv[0]);
+	exit(1);
+    }
+    addr = inet_addr(argv[1]);
+    if (hp = gethostbyaddr((char *) &addr, sizeof(addr), AF_INET)) {
+	printf("Hostname:\t%s\n", hp->h_name);
+	printf("Aliases:\t");
+	while (hp->h_aliases[0])
+	    printf("%s ", *hp->h_aliases++);
+	printf("\n");
+	printf("Addresses:\t");
+	while (hp->h_addr_list[0])
+	    printf("%s ", inet_ntoa(*(struct in_addr *) * hp->h_addr_list++));
+	printf("\n");
+	exit(0);
+    }
+    fprintf(stderr, "host %s not found\n", argv[1]);
+    exit(1);
+}