1 files changed, 112 insertions, 0 deletions
diff --git a/src/crypto/bio/socket_helper.c b/src/crypto/bio/socket_helper.c
new file mode 100644
index 0000000..52e1606
--- /dev/null
+++ b/src/crypto/bio/socket_helper.c
@@ -0,0 +1,112 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#define _POSIX_SOURCE
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+
+#if !defined(OPENSSL_WINDOWS)
+#include <netdb.h>
+#include <unistd.h>
+#else
+#pragma warning(push, 3)
+#include <WinSock2.h>
+#include <WS2tcpip.h>
+#pragma warning(pop)
+#endif
+
+#include "internal.h"
+
+
+int bio_ip_and_port_to_socket_and_addr(int *out_sock,
+                                       struct sockaddr_storage *out_addr,
+                                       socklen_t *out_addr_length,
+                                       const char *hostname,
+                                       const char *port_str) {
+  struct addrinfo hint, *result, *cur;
+  int ret;
+
+  *out_sock = -1;
+
+  memset(&hint, 0, sizeof(hint));
+  hint.ai_family = AF_UNSPEC;
+  hint.ai_socktype = SOCK_STREAM;
+
+  ret = getaddrinfo(hostname, port_str, &hint, &result);
+  if (ret != 0) {
+    OPENSSL_PUT_ERROR(SYS, getaddrinfo, 0);
+    ERR_add_error_data(2, gai_strerror(ret));
+    return 0;
+  }
+
+  ret = 0;
+
+  for (cur = result; cur; cur = cur->ai_next) {
+    if (cur->ai_addrlen > sizeof(struct sockaddr_storage)) {
+      continue;
+    }
+    memset(out_addr, 0, sizeof(struct sockaddr_storage));
+    memcpy(out_addr, cur->ai_addr, cur->ai_addrlen);
+    *out_addr_length = cur->ai_addrlen;
+
+    *out_sock = socket(cur->ai_family, cur->ai_socktype, cur->ai_protocol);
+    if (*out_sock < 0) {
+      OPENSSL_PUT_SYSTEM_ERROR(socket);
+      goto out;
+    }
+
+    ret = 1;
+    break;
+  }
+
+out:
+  freeaddrinfo(result);
+  return ret;
+}
+
+int bio_socket_nbio(int sock, int on) {
+#if defined(OPENSSL_WINDOWS)
+  u_long arg = on;
+
+  return 0 == ioctlsocket(sock, FIONBIO, &arg);
+#else
+  int flags = fcntl(sock, F_GETFL, 0);
+  if (flags < 0) {
+    return 0;
+  }
+  if (!on) {
+    flags &= ~O_NONBLOCK;
+  } else {
+    flags |= O_NONBLOCK;
+  }
+  return fcntl(sock, F_SETFL, flags) == 0;
+#endif
+}
+
+void bio_clear_socket_error(void) {}
+
+int bio_sock_error(int sock) {
+  int error;
+  socklen_t error_size = sizeof(error);
+
+  if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &error_size) < 0) {
+    return 1;
+  }
+  return error;
+}