1 files changed, 192 insertions, 0 deletions
diff --git a/tools/node_modules/expresso/deps/jscoverage/http-connection.c b/tools/node_modules/expresso/deps/jscoverage/http-connection.c
new file mode 100644
index 0000000..4280d0a
--- /dev/null
+++ b/tools/node_modules/expresso/deps/jscoverage/http-connection.c
@@ -0,0 +1,192 @@
+/*
+    http-connection.c - TCP connection between HTTP client and server
+    Copyright (C) 2008 siliconforks.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <config.h>
+
+#include "http-server.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include "util.h"
+
+#define CONNECTION_BUFFER_CAPACITY 8192
+
+#ifdef _WIN32
+#define ERRNO (WSAGetLastError())
+#else
+#include <errno.h>
+#define ERRNO errno
+#endif
+
+struct HTTPConnection {
+  SOCKET s;
+  uint8_t input_buffer[CONNECTION_BUFFER_CAPACITY];
+  size_t input_buffer_offset;
+  size_t input_buffer_length;
+  uint8_t output_buffer[CONNECTION_BUFFER_CAPACITY];
+  size_t output_buffer_offset;
+  size_t output_buffer_length;
+};
+
+static HTTPConnection * HTTPConnection_new(SOCKET s) {
+  HTTPConnection * connection = xmalloc(sizeof(HTTPConnection));
+  connection->s = s;
+  connection->input_buffer_offset = 0;
+  connection->input_buffer_length = 0;
+  connection->output_buffer_offset = 0;
+  connection->output_buffer_length = 0;
+  return connection;
+}
+
+HTTPConnection * HTTPConnection_new_client(const char * host, uint16_t port) {
+  struct in_addr ip_address;
+  if (! inet_aton(host, &ip_address)) {
+    /* it's a host name */
+    if (xgethostbyname(host, &ip_address) != 0) {
+      return NULL;
+    }
+  }
+
+  SOCKET s = socket(PF_INET, SOCK_STREAM, 0);
+  if (s == INVALID_SOCKET) {
+    return NULL;
+  }
+
+  struct sockaddr_in a;
+  a.sin_family = AF_INET;
+  a.sin_port = htons(port);
+  a.sin_addr = ip_address;
+
+  if (connect(s, (struct sockaddr *) &a, sizeof(a)) < 0) {
+    closesocket(s);
+    return NULL;
+  }
+
+  return HTTPConnection_new(s);
+}
+
+HTTPConnection * HTTPConnection_new_server(SOCKET s) {
+  return HTTPConnection_new(s);
+}
+
+int HTTPConnection_delete(HTTPConnection * connection) {
+  int result = 0;
+  if (closesocket(connection->s) == -1) {
+    result = ERRNO;
+    assert(result != 0);
+  }
+  free(connection);
+  return result;
+}
+
+int HTTPConnection_get_peer(HTTPConnection * connection, struct sockaddr_in * peer) {
+  int result = 0;
+  socklen_t length = sizeof(struct sockaddr_in);
+  if (getpeername(connection->s, (struct sockaddr *) peer, &length) == -1) {
+    result = ERRNO;
+    assert(result != 0);
+  }
+  return result;
+}
+
+int HTTPConnection_read_octet(HTTPConnection * connection, int * octet) {
+  if (connection->input_buffer_offset >= connection->input_buffer_length) {
+    ssize_t bytes_received = recv(connection->s, connection->input_buffer, CONNECTION_BUFFER_CAPACITY, 0);
+    if (bytes_received == -1) {
+      int result = ERRNO;
+      assert(result != 0);
+      return result;
+    }
+    else if (bytes_received == 0) {
+      /* orderly shutdown */
+      *octet = -1;
+      return 0;
+    }
+    else {
+      connection->input_buffer_offset = 0;
+      connection->input_buffer_length = bytes_received;
+    }
+  }
+  *octet = connection->input_buffer[connection->input_buffer_offset];
+  connection->input_buffer_offset++;
+  return 0;
+}
+
+int HTTPConnection_peek_octet(HTTPConnection * connection, int * octet) {
+  int result = HTTPConnection_read_octet(connection, octet);
+
+  /* check for error */
+  if (result != 0) {
+    return result;
+  }
+
+  /* check for end */
+  if (*octet == -1) {
+    return 0;
+  }
+
+  /* reset input buffer */
+  connection->input_buffer_offset--;
+  return 0;
+}
+
+int HTTPConnection_write(HTTPConnection * connection, const void * p, size_t size) {
+  while (size > 0) {
+    if (connection->output_buffer_length == CONNECTION_BUFFER_CAPACITY) {
+      /* buffer full */
+      ssize_t bytes_sent = send(connection->s, connection->output_buffer, CONNECTION_BUFFER_CAPACITY, 0);
+      if (bytes_sent == -1) {
+        int result = ERRNO;
+        assert(result != 0);
+        return result;
+      }
+      connection->output_buffer_length = 0;
+    }
+
+    size_t buffer_remaining = CONNECTION_BUFFER_CAPACITY - connection->output_buffer_length;
+    size_t bytes_to_copy;
+    if (size <= buffer_remaining) {
+      bytes_to_copy = size;
+    }
+    else {
+      bytes_to_copy = buffer_remaining;
+    }
+
+    memcpy(connection->output_buffer + connection->output_buffer_length, p, bytes_to_copy);
+    connection->output_buffer_length += bytes_to_copy;
+    p += bytes_to_copy;
+    size -= bytes_to_copy;
+  }
+
+  return 0;
+}
+
+int HTTPConnection_flush(HTTPConnection * connection) {
+  if (connection->output_buffer_length > 0) {
+    ssize_t bytes_sent = send(connection->s, connection->output_buffer, connection->output_buffer_length, 0);
+    if (bytes_sent == -1) {
+      int result = ERRNO;
+      assert(result != 0);
+      return result;
+    }
+    connection->output_buffer_length = 0;
+  }
+  return 0;
+}