1 files changed, 138 insertions, 0 deletions
diff --git a/tests/sockets/test_sockets_gethostbyname.c b/tests/sockets/test_sockets_gethostbyname.c
new file mode 100644
index 00000000..59c55ba1
--- /dev/null
+++ b/tests/sockets/test_sockets_gethostbyname.c
@@ -0,0 +1,138 @@
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#if EMSCRIPTEN
+#include <emscripten.h>
+#endif
+
+#define EXPECTED_BYTES 5
+
+int sockfd;
+
+void finish(int result) {
+  close(sockfd);
+#if EMSCRIPTEN
+  REPORT_RESULT();
+#endif
+  exit(result);
+}
+
+unsigned int get_all_buf(int sock, char* output, unsigned int maxsize) {
+  int bytes;
+  if (ioctl(sock, FIONREAD, &bytes)) return 0;
+  if (bytes == 0) return 0;
+
+  char buffer[1024];
+  int n;
+  unsigned int offset = 0;
+  while((errno = 0, (n = recv(sock, buffer, sizeof(buffer), 0))>0) ||
+    errno == EINTR) {
+    if (n > 0) {
+      if (((unsigned int) n)+offset > maxsize) {
+        fprintf(stderr, "too much data!");
+        finish(EXIT_FAILURE);
+      }
+      memcpy(output+offset, buffer, n);
+      offset += n;
+    }
+  }
+
+  if (n < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
+    perror("error in get_all_buf!");
+    finish(EXIT_FAILURE);
+  }
+  return offset;
+}
+
+void iter() {
+  static char out[1024*2];
+  static int pos = 0;
+  fd_set fdr;
+  int res;
+
+  // make sure that sockfd has finished connecting and is ready to read
+  FD_ZERO(&fdr);
+  FD_SET(sockfd, &fdr);
+  res = select(64, &fdr, NULL, NULL, NULL);
+  if (res == -1) {
+    perror("select failed");
+    finish(EXIT_FAILURE);
+  } else if (!FD_ISSET(sockfd, &fdr)) {
+    return;
+  }
+
+  // perform read write operations ...
+  int n = get_all_buf(sockfd, out+pos, 1024-pos);
+  if (n) printf("read! %d\n", n);
+  pos += n;
+  if (pos >= EXPECTED_BYTES) {
+    int i, sum = 0;
+    for (i=0; i < pos; i++) {
+      printf("%x\n", out[i]);
+      sum += out[i];
+    }
+
+    shutdown(sockfd, SHUT_RDWR);
+
+    close(sockfd);
+
+    printf("sum: %d\n", sum);
+
+    finish(sum);
+  }
+}
+
+int main() {
+  struct sockaddr_in addr;
+  int res;
+
+  sockfd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (sockfd == -1) {
+    perror("cannot create socket");
+    finish(EXIT_FAILURE);
+  }
+  fcntl(sockfd, F_SETFL, O_NONBLOCK);
+
+  memset(&addr, 0, sizeof(addr));
+  addr.sin_family = AF_INET;
+  addr.sin_port = htons(SOCKK);
+  struct hostent *host0 = gethostbyname("test.com"); // increment hostname counter to check for possible but at 0,0 not differentiating low/high
+  struct hostent *host = gethostbyname("localhost");
+  char **raw_addr_list = host->h_addr_list;
+  int *raw_addr = (int*)*raw_addr_list;
+  printf("raw addr: %d\n", *raw_addr);
+  char name[INET_ADDRSTRLEN];
+  if (!inet_ntop(AF_INET, raw_addr, name, sizeof(name))) {
+    printf("could not figure out name\n");
+    finish(EXIT_FAILURE);
+  }
+  printf("localhost has 'ip' of %s\n", name);
+
+  if (inet_pton(AF_INET, name, &addr.sin_addr) != 1) {
+    perror("inet_pton failed");
+    finish(EXIT_FAILURE);
+  }
+
+  res = connect(sockfd, (struct sockaddr *)&addr, sizeof(addr));
+  if (res == -1 && errno != EINPROGRESS) {
+    perror("connect failed");
+    finish(EXIT_FAILURE);
+  }
+
+#if EMSCRIPTEN
+  emscripten_set_main_loop(iter, 0, 0);
+#else
+  while (1) iter();
+#endif
+
+  return EXIT_SUCCESS;
+}
+