From a6163888f3c56123b1db313743c6147ba498732c Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Fri, 8 Aug 2014 14:42:07 +0300 Subject: Add third_party libs --- third_party/lwip-1.4.1/apps/httpserver_raw/fs.c | 177 ++++++++++++++++++++++++ 1 file changed, 177 insertions(+) create mode 100644 third_party/lwip-1.4.1/apps/httpserver_raw/fs.c (limited to 'third_party/lwip-1.4.1/apps/httpserver_raw/fs.c') diff --git a/third_party/lwip-1.4.1/apps/httpserver_raw/fs.c b/third_party/lwip-1.4.1/apps/httpserver_raw/fs.c new file mode 100644 index 0000000..a85a15e --- /dev/null +++ b/third_party/lwip-1.4.1/apps/httpserver_raw/fs.c @@ -0,0 +1,177 @@ +/* + * Copyright (c) 2001-2003 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + * + * Author: Adam Dunkels + * + */ +#include "lwip/opt.h" +#include "lwip/def.h" +#include "fs.h" +#include "fsdata.h" +#include + +/** Set this to 1 to include "fsdata_custom.c" instead of "fsdata.c" for the + * file system (to prevent changing the file included in CVS) */ +#ifndef HTTPD_USE_CUSTUM_FSDATA +#define HTTPD_USE_CUSTUM_FSDATA 0 +#endif + +#if HTTPD_USE_CUSTUM_FSDATA +#include "fsdata_custom.c" +#else /* HTTPD_USE_CUSTUM_FSDATA */ +#include "fsdata.c" +#endif /* HTTPD_USE_CUSTUM_FSDATA */ + +/*-----------------------------------------------------------------------------------*/ +/* Define the number of open files that we can support. */ +#ifndef LWIP_MAX_OPEN_FILES +#define LWIP_MAX_OPEN_FILES 10 +#endif + +/* Define the file system memory allocation structure. */ +struct fs_table { + struct fs_file file; + u8_t inuse; +}; + +/* Allocate file system memory */ +struct fs_table fs_memory[LWIP_MAX_OPEN_FILES]; + +#if LWIP_HTTPD_CUSTOM_FILES +int fs_open_custom(struct fs_file *file, const char *name); +void fs_close_custom(struct fs_file *file); +#endif /* LWIP_HTTPD_CUSTOM_FILES */ + +/*-----------------------------------------------------------------------------------*/ +static struct fs_file * +fs_malloc(void) +{ + int i; + for(i = 0; i < LWIP_MAX_OPEN_FILES; i++) { + if(fs_memory[i].inuse == 0) { + fs_memory[i].inuse = 1; + return(&fs_memory[i].file); + } + } + return(NULL); +} + +/*-----------------------------------------------------------------------------------*/ +static void +fs_free(struct fs_file *file) +{ + int i; + for(i = 0; i < LWIP_MAX_OPEN_FILES; i++) { + if(&fs_memory[i].file == file) { + fs_memory[i].inuse = 0; + break; + } + } + return; +} + +/*-----------------------------------------------------------------------------------*/ +struct fs_file * +fs_open(const char *name) +{ + struct fs_file *file; + const struct fsdata_file *f; + + file = fs_malloc(); + if(file == NULL) { + return NULL; + } + +#if LWIP_HTTPD_CUSTOM_FILES + if(fs_open_custom(file, name)) { + file->is_custom_file = 1; + return file; + } + file->is_custom_file = 0; +#endif /* LWIP_HTTPD_CUSTOM_FILES */ + + for(f = FS_ROOT; f != NULL; f = f->next) { + if (!strcmp(name, (char *)f->name)) { + file->data = (const char *)f->data; + file->len = f->len; + file->index = f->len; + file->pextension = NULL; + file->http_header_included = f->http_header_included; +#if HTTPD_PRECALCULATED_CHECKSUM + file->chksum_count = f->chksum_count; + file->chksum = f->chksum; +#endif /* HTTPD_PRECALCULATED_CHECKSUM */ +#if LWIP_HTTPD_FILE_STATE + file->state = fs_state_init(file, name); +#endif /* #if LWIP_HTTPD_FILE_STATE */ + return file; + } + } + fs_free(file); + return NULL; +} + +/*-----------------------------------------------------------------------------------*/ +void +fs_close(struct fs_file *file) +{ +#if LWIP_HTTPD_CUSTOM_FILES + if (file->is_custom_file) { + fs_close_custom(file); + } +#endif /* LWIP_HTTPD_CUSTOM_FILES */ +#if LWIP_HTTPD_FILE_STATE + fs_state_free(file, file->state); +#endif /* #if LWIP_HTTPD_FILE_STATE */ + fs_free(file); +} +/*-----------------------------------------------------------------------------------*/ +int +fs_read(struct fs_file *file, char *buffer, int count) +{ + int read; + + if(file->index == file->len) { + return -1; + } + + read = file->len - file->index; + if(read > count) { + read = count; + } + + MEMCPY(buffer, (file->data + file->index), read); + file->index += read; + + return(read); +} +/*-----------------------------------------------------------------------------------*/ +int fs_bytes_left(struct fs_file *file) +{ + return file->len - file->index; +} -- cgit v1.3.1