Enhancements to the uIP web server from Kate

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5088 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 131 insertions, 0 deletions

diff --git a/apps/netutils/webserver/httpd_mmap.c b/apps/netutils/webserver/httpd_mmap.c
new file mode 100644
index 000000000..301168a09
--- /dev/null
+++ b/apps/netutils/webserver/httpd_mmap.c
@@ -0,0 +1,131 @@
+/****************************************************************************
+ * netutils/webserver/httpd_mmap.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Header Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <limits.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <apps/netutils/httpd.h>
+
+#include "httpd.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int httpd_mmap_open(const char *name, struct httpd_fs_file *file)
+{
+  char path[PATH_MAX];
+  struct stat st;
+
+  if (sizeof path < snprintf(path, sizeof path, "%s%s",
+      CONFIG_NETUTILS_HTTPD_PATH, name))
+    {
+      errno = ENAMETOOLONG;
+      return ERROR;
+    }
+
+  /* XXX: awaiting fstat to avoid a race */
+
+  if (-1 == stat(path, &st))
+    {
+       return ERROR;
+    }
+
+  if (st.st_size > INT_MAX)
+    {
+       errno = EFBIG;
+       return ERROR;
+    }
+
+  file->fd = open(path, O_RDONLY);
+  if (file->fd == -1)
+    {
+       return ERROR;
+    }
+
+  file->data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED | MAP_FILE, file->fd, 0);
+  if (file->data == MAP_FAILED)
+    {
+       (void) close(file->fd);
+       return ERROR;
+    }
+
+  file->len = (int) st.st_size;
+
+  return OK;
+}
+
+int httpd_mmap_close(struct httpd_fs_file *file)
+{
+#ifdef CONFIG_FS_RAMMAP
+  if (-1 == munmap(file->data, file->len))
+    {
+      return ERROR;
+    }
+#endif
+
+  if (-1 == close(file->fd))
+    {
+      return ERROR;
+    }
+
+  return OK;
+}