1 files changed, 43 insertions, 0 deletions
diff --git a/tests/sockets/test_gethostbyname.c b/tests/sockets/test_gethostbyname.c
new file mode 100644
index 00000000..de7da706
--- /dev/null
+++ b/tests/sockets/test_gethostbyname.c
@@ -0,0 +1,43 @@
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <assert.h>
+#include <errno.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#if EMSCRIPTEN
+#include <emscripten.h>
+#endif
+
+int main() {
+  char str[INET_ADDRSTRLEN];
+  struct in_addr addr;
+  const char *res;
+  int err;
+  
+  // resolve the hostname ot an actual address
+  struct hostent *host = gethostbyname("slashdot.org");
+  assert(host->h_addrtype == AF_INET);
+  assert(host->h_length == sizeof(uint32_t));
+
+  // convert the raw address to a string
+  char **raw_addr_list = host->h_addr_list;
+  int *raw_addr = (int*)*raw_addr_list;
+  res = inet_ntop(host->h_addrtype, raw_addr, str, INET_ADDRSTRLEN);
+  assert(res);
+
+  // convert the string to an in_addr structure
+  err = inet_pton(AF_INET, str, &addr);
+  assert(err == 1);
+
+  // do a reverse lookup on the ip address
+  struct hostent *host1 = gethostbyaddr(&addr, sizeof(addr), host->h_addrtype);
+  assert(strstr(host1->h_name, "slashdot.org"));
+
+  puts("success");
+
+  return EXIT_SUCCESS;
+}
+