Add /apps/webserver-nano

apps/webserver-nano/httpd-fs.c

@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2001, Swedish Institute of Computer Science.
+ * All rights reserved. 
+ *
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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. 
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ * 
+ */
+
+#include "contiki-net.h"
+#include "httpd.h"
+#include "httpd-fs.h"
+#include "httpd-fsdata.h"
+
+#include <string.h> /* for memcpy */
+
+/* httpd-fsdata.c contains the web content.
+ * It is generated using the PERL script /tools/makefsdata 
+ */
+#include "httpd-fsdata.c"
+
+#if WEBSERVER_CONF_FILESTATS==1
+u16_t httpd_filecount[HTTPD_FS_NUMFILES];
+#endif
+/*-----------------------------------------------------------------------------------*/
+void *
+httpd_fs_get_root()
+{
+  return (void *)HTTPD_FS_ROOT;
+}
+/*-----------------------------------------------------------------------------------*/
+u16_t
+httpd_fs_get_size()
+{
+  return HTTPD_FS_SIZE;
+}
+/*-----------------------------------------------------------------------------------*/
+static u8_t
+httpd_fs_strcmp(const char *str1, const char *str2)
+{
+  u8_t i;
+  i = 0;
+
+loop:
+  if(str2[i] == 0 ||
+     str1[i] == '\r' || 
+     str1[i] == '\n') {
+    return 0;
+  }
+
+  if(str1[i] != str2[i]) {
+    return 1;
+  }
+
+  ++i;
+  goto loop;
+}
+/*-----------------------------------------------------------------------------------*/
+uint16_t
+httpd_fs_open(const char *name, struct httpd_fs_file *file)
+{
+#if WEBSERVER_CONF_FILESTATS
+  u16_t i = 0;
+#endif
+  struct httpd_fsdata_file_noconst *f,fram;
+
+  for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
+      f != NULL;
+      f = (struct httpd_fsdata_file_noconst *)fram.next) {
+
+    /*Get the linked list entry into ram from wherever it is */
+    httpd_memcpy(&fram,f,sizeof(fram));
+
+    /*Compare name passed in RAM with name in whatever flash the file is in */
+	/*makefsdata adds an extra zero byte at the end of the file */
+    if(httpd_fs_strcmp((char *)name, fram.name) == 0) {
+      if (file) {
+        file->data = fram.data;
+        file->len  = fram.len-1;
+#if WEBSERVER_CONF_FILESTATS==2         //increment count in linked list field if it is in RAM
+        f->count++;
+      }
+      return f->count;
+    }
+    ++i
+#elif WEBSERVER_CONF_FILESTATS==1       //increment count in RAM array when linked list is in flash
+        ++httpd_filecount[i];
+      }
+      return httpd_filecount[i];
+    }
+    ++i;
+#else                              //no file statistics
+      }
+      return 1;
+    }
+#endif /* WEBSERVER_CONF_FILESTATS */
+  }
+  return 0;
+}
+/*-----------------------------------------------------------------------------------*/
+void
+httpd_fs_init(void)
+{
+#if WEBSERVER_CONF_FILESTATS==1
+  u16_t i;
+  for(i = 0; i < HTTPD_FS_NUMFILES; i++) {
+    httpd_filecount[i] = 0;
+  }
+#endif
+}
+/*-----------------------------------------------------------------------------------*/
+#if WEBSERVER_CONF_FILESTATS && 0
+u16_t
+httpd_fs_count(char *name)
+{
+  struct httpd_fsdata_file_noconst *f;
+  u16_t i;
+
+  i = 0;
+  for(f = (struct httpd_fsdata_file_noconst *)HTTPD_FS_ROOT;
+      f != NULL;
+      f = (struct httpd_fsdata_file_noconst *)f->next) {
+
+    if(httpd_fs_strcmp(name, f->name) == 0) {
+      return httpd_filecount[i];
+    }
+    ++i;
+  }
+  return 0;
+}
+#endif
+/*-----------------------------------------------------------------------------------*/