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CARPLAY版本整理

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LiJie
2025-01-21 16:49:37 +08:00
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584
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/altcp_proxyconnect.c Normal file
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/**
* @file
* Application layered TCP connection API that executes a proxy-connect.
*
* This file provides a starting layer that executes a proxy-connect e.g. to
* set up TLS connections through a http proxy.
*/
/*
* Copyright (c) 2018 Simon Goldschmidt
* 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: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#include "lwip/apps/altcp_proxyconnect.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/altcp.h"
#include "lwip/priv/altcp_priv.h"
#include "lwip/altcp_tcp.h"
#include "lwip/altcp_tls.h"
#include "lwip/mem.h"
#include "lwip/init.h"
#include <stdio.h>
/** This string is passed in the HTTP header as "User-Agent: " */
#ifndef ALTCP_PROXYCONNECT_CLIENT_AGENT
#define ALTCP_PROXYCONNECT_CLIENT_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)"
#endif
#define ALTCP_PROXYCONNECT_FLAGS_CONNECT_STARTED 0x01
#define ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE 0x02
typedef struct altcp_proxyconnect_state_s
{
ip_addr_t outer_addr;
u16_t outer_port;
struct altcp_proxyconnect_config *conf;
u8_t flags;
} altcp_proxyconnect_state_t;
/* Variable prototype, the actual declaration is at the end of this file
since it contains pointers to static functions declared here */
extern const struct altcp_functions altcp_proxyconnect_functions;
/* memory management functions: */
static altcp_proxyconnect_state_t *
altcp_proxyconnect_state_alloc(void)
{
altcp_proxyconnect_state_t *ret = (altcp_proxyconnect_state_t *)mem_calloc(1, sizeof(altcp_proxyconnect_state_t));
return ret;
}
static void
altcp_proxyconnect_state_free(altcp_proxyconnect_state_t *state)
{
LWIP_ASSERT("state != NULL", state != NULL);
mem_free(state);
}
/* helper functions */
#define PROXY_CONNECT "CONNECT %s:%d HTTP/1.1\r\n" /* HOST, PORT */ \
"User-Agent: %s\r\n" /* User-Agent */\
"Proxy-Connection: keep-alive\r\n" \
"Connection: keep-alive\r\n" \
"\r\n"
#define PROXY_CONNECT_FORMAT(host, port) PROXY_CONNECT, host, port, ALTCP_PROXYCONNECT_CLIENT_AGENT
/* Format the http proxy connect request via snprintf */
static int
altcp_proxyconnect_format_request(char *buffer, size_t bufsize, const char *host, int port)
{
return snprintf(buffer, bufsize, PROXY_CONNECT_FORMAT(host, port));
}
/* Create and send the http proxy connect request */
static err_t
altcp_proxyconnect_send_request(struct altcp_pcb *conn)
{
int len, len2;
mem_size_t alloc_len;
char *buffer, *host;
altcp_proxyconnect_state_t *state = (altcp_proxyconnect_state_t *)conn->state;
if (!state) {
return ERR_VAL;
}
/* Use printf with zero length to get the required allocation size */
len = altcp_proxyconnect_format_request(NULL, 0, "", state->outer_port);
if (len < 0) {
return ERR_VAL;
}
/* add allocation size for IP address strings */
#if LWIP_IPV6
len += 40; /* worst-case IPv6 address length */
#else
len += 16; /* worst-case IPv4 address length */
#endif
alloc_len = (mem_size_t)len;
if ((len < 0) || (int)alloc_len != len) {
/* overflow */
return ERR_MEM;
}
/* Allocate a bufer for the request string */
buffer = (char *)mem_malloc(alloc_len);
if (buffer == NULL) {
return ERR_MEM;
}
host = ipaddr_ntoa(&state->outer_addr);
len2 = altcp_proxyconnect_format_request(buffer, alloc_len, host, state->outer_port);
if ((len2 > 0) && (len2 <= len) && (len2 <= 0xFFFF)) {
err_t err = altcp_write(conn->inner_conn, buffer, (u16_t)len2, TCP_WRITE_FLAG_COPY);
if (err != ERR_OK) {
/* @todo: abort? */
mem_free(buffer);
return err;
}
}
mem_free(buffer);
return ERR_OK;
}
/* callback functions from inner/lower connection: */
/** Connected callback from lower connection (i.e. TCP).
* Not really implemented/tested yet...
*/
static err_t
altcp_proxyconnect_lower_connected(void *arg, struct altcp_pcb *inner_conn, err_t err)
{
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
if (conn && conn->state) {
LWIP_ASSERT("pcb mismatch", conn->inner_conn == inner_conn);
LWIP_UNUSED_ARG(inner_conn); /* for LWIP_NOASSERT */
/* upper connected is called when handshake is done */
if (err != ERR_OK) {
if (conn->connected) {
if (conn->connected(conn->arg, conn, err) == ERR_ABRT) {
return ERR_ABRT;
}
return ERR_OK;
}
}
/* send proxy connect request here */
return altcp_proxyconnect_send_request(conn);
}
return ERR_VAL;
}
/** Recv callback from lower connection (i.e. TCP)
* This one mainly differs between connection setup (wait for proxy OK string)
* and application phase (data is passed on to the application).
*/
static err_t
altcp_proxyconnect_lower_recv(void *arg, struct altcp_pcb *inner_conn, struct pbuf *p, err_t err)
{
altcp_proxyconnect_state_t *state;
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
LWIP_ASSERT("no err expected", err == ERR_OK);
LWIP_UNUSED_ARG(err);
if (!conn) {
/* no connection given as arg? should not happen, but prevent pbuf/conn leaks */
if (p != NULL) {
pbuf_free(p);
}
altcp_close(inner_conn);
return ERR_CLSD;
}
state = (altcp_proxyconnect_state_t *)conn->state;
LWIP_ASSERT("pcb mismatch", conn->inner_conn == inner_conn);
if (!state) {
/* already closed */
if (p != NULL) {
pbuf_free(p);
}
altcp_close(inner_conn);
return ERR_CLSD;
}
if (state->flags & ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE) {
/* application phase, just pass this through */
if (conn->recv) {
return conn->recv(conn->arg, conn, p, err);
}
pbuf_free(p);
return ERR_OK;
} else {
/* setup phase */
/* handle NULL pbuf (inner connection closed) */
if (p == NULL) {
if (altcp_close(conn) != ERR_OK) {
altcp_abort(conn);
return ERR_ABRT;
}
return ERR_OK;
} else {
/* @todo: parse setup phase rx data
for now, we just wait for the end of the header... */
u16_t idx = pbuf_memfind(p, "\r\n\r\n", 4, 0);
altcp_recved(inner_conn, p->tot_len);
pbuf_free(p);
if (idx != 0xFFFF) {
state->flags |= ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE;
if (conn->connected) {
return conn->connected(conn->arg, conn, ERR_OK);
}
}
return ERR_OK;
}
}
}
/** Sent callback from lower connection (i.e. TCP)
* This only informs the upper layer to try to send more, not about
* the number of ACKed bytes.
*/
static err_t
altcp_proxyconnect_lower_sent(void *arg, struct altcp_pcb *inner_conn, u16_t len)
{
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
LWIP_UNUSED_ARG(len);
if (conn) {
altcp_proxyconnect_state_t *state = (altcp_proxyconnect_state_t *)conn->state;
LWIP_ASSERT("pcb mismatch", conn->inner_conn == inner_conn);
LWIP_UNUSED_ARG(inner_conn); /* for LWIP_NOASSERT */
if (!state || !(state->flags & ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE)) {
/* @todo: do something here? */
return ERR_OK;
}
/* pass this on to upper sent */
if (conn->sent) {
return conn->sent(conn->arg, conn, len);
}
}
return ERR_OK;
}
/** Poll callback from lower connection (i.e. TCP)
* Just pass this on to the application.
* @todo: retry sending?
*/
static err_t
altcp_proxyconnect_lower_poll(void *arg, struct altcp_pcb *inner_conn)
{
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
if (conn) {
LWIP_ASSERT("pcb mismatch", conn->inner_conn == inner_conn);
LWIP_UNUSED_ARG(inner_conn); /* for LWIP_NOASSERT */
if (conn->poll) {
return conn->poll(conn->arg, conn);
}
}
return ERR_OK;
}
static void
altcp_proxyconnect_lower_err(void *arg, err_t err)
{
struct altcp_pcb *conn = (struct altcp_pcb *)arg;
if (conn) {
conn->inner_conn = NULL; /* already freed */
if (conn->err) {
conn->err(conn->arg, err);
}
altcp_free(conn);
}
}
/* setup functions */
static void
altcp_proxyconnect_setup_callbacks(struct altcp_pcb *conn, struct altcp_pcb *inner_conn)
{
altcp_arg(inner_conn, conn);
altcp_recv(inner_conn, altcp_proxyconnect_lower_recv);
altcp_sent(inner_conn, altcp_proxyconnect_lower_sent);
altcp_err(inner_conn, altcp_proxyconnect_lower_err);
/* tcp_poll is set when interval is set by application */
/* listen is set totally different :-) */
}
static err_t
altcp_proxyconnect_setup(struct altcp_proxyconnect_config *config, struct altcp_pcb *conn, struct altcp_pcb *inner_conn)
{
altcp_proxyconnect_state_t *state;
if (!config) {
return ERR_ARG;
}
LWIP_ASSERT("invalid inner_conn", conn != inner_conn);
/* allocate proxyconnect context */
state = altcp_proxyconnect_state_alloc();
if (state == NULL) {
return ERR_MEM;
}
state->flags = 0;
state->conf = config;
altcp_proxyconnect_setup_callbacks(conn, inner_conn);
conn->inner_conn = inner_conn;
conn->fns = &altcp_proxyconnect_functions;
conn->state = state;
return ERR_OK;
}
/** Allocate a new altcp layer connecting through a proxy.
* This function gets the inner pcb passed.
*
* @param config struct altcp_proxyconnect_config that contains the proxy settings
* @param inner_pcb pcb that makes the connection to the proxy (i.e. tcp pcb)
*/
struct altcp_pcb *
altcp_proxyconnect_new(struct altcp_proxyconnect_config *config, struct altcp_pcb *inner_pcb)
{
struct altcp_pcb *ret;
if (inner_pcb == NULL) {
return NULL;
}
ret = altcp_alloc();
if (ret != NULL) {
if (altcp_proxyconnect_setup(config, ret, inner_pcb) != ERR_OK) {
altcp_free(ret);
return NULL;
}
}
return ret;
}
/** Allocate a new altcp layer connecting through a proxy.
* This function allocates the inner pcb as tcp pcb, resulting in a direct tcp
* connection to the proxy.
*
* @param config struct altcp_proxyconnect_config that contains the proxy settings
* @param ip_type IP type of the connection (@ref lwip_ip_addr_type)
*/
struct altcp_pcb *
altcp_proxyconnect_new_tcp(struct altcp_proxyconnect_config *config, u8_t ip_type)
{
struct altcp_pcb *inner_pcb, *ret;
/* inner pcb is tcp */
inner_pcb = altcp_tcp_new_ip_type(ip_type);
if (inner_pcb == NULL) {
return NULL;
}
ret = altcp_proxyconnect_new(config, inner_pcb);
if (ret == NULL) {
altcp_close(inner_pcb);
}
return ret;
}
/** Allocator function to allocate a proxy connect altcp pcb connecting directly
* via tcp to the proxy.
*
* The returned pcb is a chain: altcp_proxyconnect - altcp_tcp - tcp pcb
*
* This function is meant for use with @ref altcp_new.
*
* @param arg struct altcp_proxyconnect_config that contains the proxy settings
* @param ip_type IP type of the connection (@ref lwip_ip_addr_type)
*/
struct altcp_pcb *
altcp_proxyconnect_alloc(void *arg, u8_t ip_type)
{
return altcp_proxyconnect_new_tcp((struct altcp_proxyconnect_config *)arg, ip_type);
}
#if LWIP_ALTCP_TLS
/** Allocator function to allocate a TLS connection through a proxy.
*
* The returned pcb is a chain: altcp_tls - altcp_proxyconnect - altcp_tcp - tcp pcb
*
* This function is meant for use with @ref altcp_new.
*
* @param arg struct altcp_proxyconnect_tls_config that contains the proxy settings
* and tls settings
* @param ip_type IP type of the connection (@ref lwip_ip_addr_type)
*/
struct altcp_pcb *
altcp_proxyconnect_tls_alloc(void *arg, u8_t ip_type)
{
struct altcp_proxyconnect_tls_config *cfg = (struct altcp_proxyconnect_tls_config *)arg;
struct altcp_pcb *proxy_pcb;
struct altcp_pcb *tls_pcb;
proxy_pcb = altcp_proxyconnect_new_tcp(&cfg->proxy, ip_type);
tls_pcb = altcp_tls_wrap(cfg->tls_config, proxy_pcb);
if (tls_pcb == NULL) {
altcp_close(proxy_pcb);
}
return tls_pcb;
}
#endif /* LWIP_ALTCP_TLS */
/* "virtual" functions */
static void
altcp_proxyconnect_set_poll(struct altcp_pcb *conn, u8_t interval)
{
if (conn != NULL) {
altcp_poll(conn->inner_conn, altcp_proxyconnect_lower_poll, interval);
}
}
static void
altcp_proxyconnect_recved(struct altcp_pcb *conn, u16_t len)
{
altcp_proxyconnect_state_t *state;
if (conn == NULL) {
return;
}
state = (altcp_proxyconnect_state_t *)conn->state;
if (state == NULL) {
return;
}
if (!(state->flags & ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE)) {
return;
}
altcp_recved(conn->inner_conn, len);
}
static err_t
altcp_proxyconnect_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected)
{
altcp_proxyconnect_state_t *state;
if ((conn == NULL) || (ipaddr == NULL)) {
return ERR_VAL;
}
state = (altcp_proxyconnect_state_t *)conn->state;
if (state == NULL) {
return ERR_VAL;
}
if (state->flags & ALTCP_PROXYCONNECT_FLAGS_CONNECT_STARTED) {
return ERR_VAL;
}
state->flags |= ALTCP_PROXYCONNECT_FLAGS_CONNECT_STARTED;
conn->connected = connected;
/* connect to our proxy instead, but store the requested address and port */
ip_addr_copy(state->outer_addr, *ipaddr);
state->outer_port = port;
return altcp_connect(conn->inner_conn, &state->conf->proxy_addr, state->conf->proxy_port, altcp_proxyconnect_lower_connected);
}
static struct altcp_pcb *
altcp_proxyconnect_listen(struct altcp_pcb *conn, u8_t backlog, err_t *err)
{
LWIP_UNUSED_ARG(conn);
LWIP_UNUSED_ARG(backlog);
LWIP_UNUSED_ARG(err);
/* listen not supported! */
return NULL;
}
static void
altcp_proxyconnect_abort(struct altcp_pcb *conn)
{
if (conn != NULL) {
if (conn->inner_conn != NULL) {
altcp_abort(conn->inner_conn);
}
altcp_free(conn);
}
}
static err_t
altcp_proxyconnect_close(struct altcp_pcb *conn)
{
if (conn == NULL) {
return ERR_VAL;
}
if (conn->inner_conn != NULL) {
err_t err = altcp_close(conn->inner_conn);
if (err != ERR_OK) {
/* closing inner conn failed, return the error */
return err;
}
}
/* no inner conn or closing it succeeded, deallocate myself */
altcp_free(conn);
return ERR_OK;
}
static err_t
altcp_proxyconnect_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags)
{
altcp_proxyconnect_state_t *state;
LWIP_UNUSED_ARG(apiflags);
if (conn == NULL) {
return ERR_VAL;
}
state = (altcp_proxyconnect_state_t *)conn->state;
if (state == NULL) {
/* @todo: which error? */
return ERR_CLSD;
}
if (!(state->flags & ALTCP_PROXYCONNECT_FLAGS_HANDSHAKE_DONE)) {
/* @todo: which error? */
return ERR_VAL;
}
return altcp_write(conn->inner_conn, dataptr, len, apiflags);
}
static void
altcp_proxyconnect_dealloc(struct altcp_pcb *conn)
{
/* clean up and free tls state */
if (conn) {
altcp_proxyconnect_state_t *state = (altcp_proxyconnect_state_t *)conn->state;
if (state) {
altcp_proxyconnect_state_free(state);
conn->state = NULL;
}
}
}
const struct altcp_functions altcp_proxyconnect_functions = {
altcp_proxyconnect_set_poll,
altcp_proxyconnect_recved,
altcp_default_bind,
altcp_proxyconnect_connect,
altcp_proxyconnect_listen,
altcp_proxyconnect_abort,
altcp_proxyconnect_close,
altcp_default_shutdown,
altcp_proxyconnect_write,
altcp_default_output,
altcp_default_mss,
altcp_default_sndbuf,
altcp_default_sndqueuelen,
altcp_default_nagle_disable,
altcp_default_nagle_enable,
altcp_default_nagle_disabled,
altcp_default_setprio,
altcp_proxyconnect_dealloc,
altcp_default_get_tcp_addrinfo,
altcp_default_get_ip,
altcp_default_get_port
#ifdef LWIP_DEBUG
, altcp_default_dbg_get_tcp_state
#endif
};
#endif /* LWIP_ALTCP */

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/*
* 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 <adam@sics.se>
*
*/
#include "lwip/apps/httpd_opts.h"
#include "lwip/def.h"
#include "lwip/apps/fs.h"
#include <string.h>
#include HTTPD_FSDATA_FILE
/*-----------------------------------------------------------------------------------*/
#if LWIP_HTTPD_CUSTOM_FILES
int fs_open_custom(struct fs_file *file, const char *name);
void fs_close_custom(struct fs_file *file);
#if LWIP_HTTPD_FS_ASYNC_READ
u8_t fs_canread_custom(struct fs_file *file);
u8_t fs_wait_read_custom(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg);
int fs_read_async_custom(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg);
#else /* LWIP_HTTPD_FS_ASYNC_READ */
int fs_read_custom(struct fs_file *file, char *buffer, int count);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
#endif /* LWIP_HTTPD_CUSTOM_FILES */
/*-----------------------------------------------------------------------------------*/
err_t
fs_open(struct fs_file *file, const char *name)
{
const struct fsdata_file *f;
if ((file == NULL) || (name == NULL)) {
return ERR_ARG;
}
#if LWIP_HTTPD_CUSTOM_FILES
if (fs_open_custom(file, name)) {
file->is_custom_file = 1;
return ERR_OK;
}
file->is_custom_file = 0;
#endif /* LWIP_HTTPD_CUSTOM_FILES */
for (f = FS_ROOT; f != NULL; f = f->next) {
if (!strcmp(name, (const char *)f->name)) {
file->data = (const char *)f->data;
file->len = f->len;
file->index = f->len;
file->pextension = NULL;
file->flags = f->flags;
#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 ERR_OK;
}
}
/* file not found */
return ERR_VAL;
}
/*-----------------------------------------------------------------------------------*/
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 */
LWIP_UNUSED_ARG(file);
}
/*-----------------------------------------------------------------------------------*/
#if LWIP_HTTPD_DYNAMIC_FILE_READ
#if LWIP_HTTPD_FS_ASYNC_READ
int
fs_read_async(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg)
#else /* LWIP_HTTPD_FS_ASYNC_READ */
int
fs_read(struct fs_file *file, char *buffer, int count)
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
{
int read;
if (file->index == file->len) {
return FS_READ_EOF;
}
#if LWIP_HTTPD_FS_ASYNC_READ
LWIP_UNUSED_ARG(callback_fn);
LWIP_UNUSED_ARG(callback_arg);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
#if LWIP_HTTPD_CUSTOM_FILES
if (file->is_custom_file) {
#if LWIP_HTTPD_FS_ASYNC_READ
return fs_read_async_custom(file, buffer, count, callback_fn, callback_arg);
#else /* LWIP_HTTPD_FS_ASYNC_READ */
return fs_read_custom(file, buffer, count);
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
}
#endif /* LWIP_HTTPD_CUSTOM_FILES */
read = file->len - file->index;
if (read > count) {
read = count;
}
MEMCPY(buffer, (file->data + file->index), read);
file->index += read;
return (read);
}
#endif /* LWIP_HTTPD_DYNAMIC_FILE_READ */
/*-----------------------------------------------------------------------------------*/
#if LWIP_HTTPD_FS_ASYNC_READ
int
fs_is_file_ready(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg)
{
if (file != NULL) {
#if LWIP_HTTPD_FS_ASYNC_READ
#if LWIP_HTTPD_CUSTOM_FILES
if (!fs_canread_custom(file)) {
if (fs_wait_read_custom(file, callback_fn, callback_arg)) {
return 0;
}
}
#else /* LWIP_HTTPD_CUSTOM_FILES */
LWIP_UNUSED_ARG(callback_fn);
LWIP_UNUSED_ARG(callback_arg);
#endif /* LWIP_HTTPD_CUSTOM_FILES */
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
}
return 1;
}
#endif /* LWIP_HTTPD_FS_ASYNC_READ */
/*-----------------------------------------------------------------------------------*/
int
fs_bytes_left(struct fs_file *file)
{
return file->len - file->index;
}

21
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/fs/404.html Normal file
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@ -0,0 +1,21 @@
<html>
<head><title>lwIP - A Lightweight TCP/IP Stack</title></head>
<body bgcolor="white" text="black">
<table width="100%">
<tr valign="top"><td width="80">
<a href="http://www.sics.se/"><img src="/img/sics.gif"
border="0" alt="SICS logo" title="SICS logo"></a>
</td><td width="500">
<h1>lwIP - A Lightweight TCP/IP Stack</h1>
<h2>404 - Page not found</h2>
<p>
Sorry, the page you are requesting was not found on this
server.
</p>
</td><td>
&nbsp;
</td></tr>
</table>
</body>
</html>

BIN
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/fs/img/sics.gif Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 724 B

47
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/fs/index.html Normal file
View File

@ -0,0 +1,47 @@
<html>
<head><title>lwIP - A Lightweight TCP/IP Stack</title></head>
<body bgcolor="white" text="black">
<table width="100%">
<tr valign="top"><td width="80">
<a href="http://www.sics.se/"><img src="/img/sics.gif"
border="0" alt="SICS logo" title="SICS logo"></a>
</td><td width="500">
<h1>lwIP - A Lightweight TCP/IP Stack</h1>
<p>
The web page you are watching was served by a simple web
server running on top of the lightweight TCP/IP stack <a
href="http://www.sics.se/~adam/lwip/">lwIP</a>.
</p>
<p>
lwIP is an open source implementation of the TCP/IP
protocol suite that was originally written by <a
href="http://www.sics.se/~adam/lwip/">Adam Dunkels
of the Swedish Institute of Computer Science</a> but now is
being actively developed by a team of developers
distributed world-wide. Since it's release, lwIP has
spurred a lot of interest and has been ported to several
platforms and operating systems. lwIP can be used either
with or without an underlying OS.
</p>
<p>
The focus of the lwIP TCP/IP implementation is to reduce
the RAM usage while still having a full scale TCP. This
makes lwIP suitable for use in embedded systems with tens
of kilobytes of free RAM and room for around 40 kilobytes
of code ROM.
</p>
<p>
More information about lwIP can be found at the lwIP
homepage at <a
href="http://savannah.nongnu.org/projects/lwip/">http://savannah.nongnu.org/projects/lwip/</a>
or at the lwIP wiki at <a
href="http://lwip.wikia.com/">http://lwip.wikia.com/</a>.
</p>
</td><td>
&nbsp;
</td></tr>
</table>
</body>
</html>

337
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/fsdata.c Normal file
View File

@ -0,0 +1,337 @@
#include "lwip/apps/fs.h"
#include "lwip/def.h"
#define file_NULL (struct fsdata_file *) NULL
#ifndef FS_FILE_FLAGS_HEADER_INCLUDED
#define FS_FILE_FLAGS_HEADER_INCLUDED 1
#endif
#ifndef FS_FILE_FLAGS_HEADER_PERSISTENT
#define FS_FILE_FLAGS_HEADER_PERSISTENT 0
#endif
/* FSDATA_FILE_ALIGNMENT: 0=off, 1=by variable, 2=by include */
#ifndef FSDATA_FILE_ALIGNMENT
#define FSDATA_FILE_ALIGNMENT 0
#endif
#ifndef FSDATA_ALIGN_PRE
#define FSDATA_ALIGN_PRE
#endif
#ifndef FSDATA_ALIGN_POST
#define FSDATA_ALIGN_POST
#endif
#if FSDATA_FILE_ALIGNMENT==2
#include "fsdata_alignment.h"
#endif
#if FSDATA_FILE_ALIGNMENT==1
static const unsigned int dummy_align__img_sics_gif = 0;
#endif
static const unsigned char FSDATA_ALIGN_PRE data__img_sics_gif[] FSDATA_ALIGN_POST = {
/* /img/sics.gif (14 chars) */
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/* HTTP header */
/* "HTTP/1.0 200 OK
" (17 bytes) */
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0x0a,
/* "Server: lwIP/2.0.3d (http://savannah.nongnu.org/projects/lwip)
" (64 bytes) */
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/* "Content-Length: 724
" (18+ bytes) */
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/* "Content-Type: image/gif
" (27 bytes) */
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0x41,0x00,0x00,0x3b,};
#if FSDATA_FILE_ALIGNMENT==1
static const unsigned int dummy_align__404_html = 1;
#endif
static const unsigned char FSDATA_ALIGN_PRE data__404_html[] FSDATA_ALIGN_POST = {
/* /404.html (10 chars) */
0x2f,0x34,0x30,0x34,0x2e,0x68,0x74,0x6d,0x6c,0x00,0x00,0x00,
/* HTTP header */
/* "HTTP/1.0 404 File not found
" (29 bytes) */
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/* "Server: lwIP/2.0.3d (http://savannah.nongnu.org/projects/lwip)
" (64 bytes) */
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/* "Content-Length: 565
" (18+ bytes) */
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/* "Content-Type: text/html
" (27 bytes) */
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#if FSDATA_FILE_ALIGNMENT==1
static const unsigned int dummy_align__index_html = 2;
#endif
static const unsigned char FSDATA_ALIGN_PRE data__index_html[] FSDATA_ALIGN_POST = {
/* /index.html (12 chars) */
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/* HTTP header */
/* "HTTP/1.0 200 OK
" (17 bytes) */
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/* "Server: lwIP/2.0.3d (http://savannah.nongnu.org/projects/lwip)
" (64 bytes) */
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" (27 bytes) */
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0x6d,0x6c,0x3e,0x0d,0x0a,0x0d,0x0a,};
const struct fsdata_file file__img_sics_gif[] = { {
file_NULL,
data__img_sics_gif,
data__img_sics_gif + 16,
sizeof(data__img_sics_gif) - 16,
FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT,
}};
const struct fsdata_file file__404_html[] = { {
file__img_sics_gif,
data__404_html,
data__404_html + 12,
sizeof(data__404_html) - 12,
FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT,
}};
const struct fsdata_file file__index_html[] = { {
file__404_html,
data__index_html,
data__index_html + 12,
sizeof(data__index_html) - 12,
FS_FILE_FLAGS_HEADER_INCLUDED | FS_FILE_FLAGS_HEADER_PERSISTENT,
}};
#define FS_ROOT file__index_html
#define FS_NUMFILES 3

41
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/fsdata.h Normal file
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/*
* 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 <adam@sics.se>
*
*/
#ifndef LWIP_FSDATA_H
#define LWIP_FSDATA_H
#include "lwip/apps/httpd_opts.h"
#include "lwip/apps/fs.h"
/* THIS FILE IS DEPRECATED AND WILL BE REMOVED IN THE FUTURE */
/* content was moved to fs.h to simplify #include structure */
#endif /* LWIP_FSDATA_H */

909
MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/http_client.c Normal file
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/**
* @file
* HTTP client
*/
/*
* Copyright (c) 2018 Simon Goldschmidt <goldsimon@gmx.de>
* 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: Simon Goldschmidt <goldsimon@gmx.de>
*/
/**
* @defgroup httpc HTTP client
* @ingroup apps
* @todo:
* - persistent connections
* - select outgoing http version
* - optionally follow redirect
* - check request uri for invalid characters? (e.g. encode spaces)
* - IPv6 support
*/
#include "lwip/apps/http_client.h"
#include "lwip/altcp_tcp.h"
#include "lwip/dns.h"
#include "lwip/debug.h"
#include "lwip/mem.h"
#include "lwip/altcp_tls.h"
#include "lwip/init.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if LWIP_TCP && LWIP_CALLBACK_API
/**
* HTTPC_DEBUG: Enable debugging for HTTP client.
*/
#ifndef HTTPC_DEBUG
#define HTTPC_DEBUG LWIP_DBG_OFF
#endif
/** Set this to 1 to keep server name and uri in request state */
#ifndef HTTPC_DEBUG_REQUEST
#define HTTPC_DEBUG_REQUEST 0
#endif
/** This string is passed in the HTTP header as "User-Agent: " */
#ifndef HTTPC_CLIENT_AGENT
#define HTTPC_CLIENT_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)"
#endif
/* the various debug levels for this file */
#define HTTPC_DEBUG_TRACE (HTTPC_DEBUG | LWIP_DBG_TRACE)
#define HTTPC_DEBUG_STATE (HTTPC_DEBUG | LWIP_DBG_STATE)
#define HTTPC_DEBUG_WARN (HTTPC_DEBUG | LWIP_DBG_LEVEL_WARNING)
#define HTTPC_DEBUG_WARN_STATE (HTTPC_DEBUG | LWIP_DBG_LEVEL_WARNING | LWIP_DBG_STATE)
#define HTTPC_DEBUG_SERIOUS (HTTPC_DEBUG | LWIP_DBG_LEVEL_SERIOUS)
#define HTTPC_POLL_INTERVAL 1
#define HTTPC_POLL_TIMEOUT 30 /* 15 seconds */
#define HTTPC_CONTENT_LEN_INVALID 0xFFFFFFFF
/* GET request basic */
#define HTTPC_REQ_11 "GET %s HTTP/1.1\r\n" /* URI */\
"User-Agent: %s\r\n" /* User-Agent */ \
"Accept: */*\r\n" \
"Connection: Close\r\n" /* we don't support persistent connections, yet */ \
"\r\n"
#define HTTPC_REQ_11_FORMAT(uri) HTTPC_REQ_11, uri, HTTPC_CLIENT_AGENT
/* GET request with host */
#define HTTPC_REQ_11_HOST "GET %s HTTP/1.1\r\n" /* URI */\
"User-Agent: %s\r\n" /* User-Agent */ \
"Accept: */*\r\n" \
"Host: %s\r\n" /* server name */ \
"Connection: Close\r\n" /* we don't support persistent connections, yet */ \
"\r\n"
#define HTTPC_REQ_11_HOST_FORMAT(uri, srv_name) HTTPC_REQ_11_HOST, uri, HTTPC_CLIENT_AGENT, srv_name
/* GET request with proxy */
#define HTTPC_REQ_11_PROXY "GET http://%s%s HTTP/1.1\r\n" /* HOST, URI */\
"User-Agent: %s\r\n" /* User-Agent */ \
"Accept: */*\r\n" \
"Host: %s\r\n" /* server name */ \
"Connection: Close\r\n" /* we don't support persistent connections, yet */ \
"\r\n"
#define HTTPC_REQ_11_PROXY_FORMAT(host, uri, srv_name) HTTPC_REQ_11_PROXY, host, uri, HTTPC_CLIENT_AGENT, srv_name
/* GET request with proxy (non-default server port) */
#define HTTPC_REQ_11_PROXY_PORT "GET http://%s:%d%s HTTP/1.1\r\n" /* HOST, host-port, URI */\
"User-Agent: %s\r\n" /* User-Agent */ \
"Accept: */*\r\n" \
"Host: %s\r\n" /* server name */ \
"Connection: Close\r\n" /* we don't support persistent connections, yet */ \
"\r\n"
#define HTTPC_REQ_11_PROXY_PORT_FORMAT(host, host_port, uri, srv_name) HTTPC_REQ_11_PROXY_PORT, host, host_port, uri, HTTPC_CLIENT_AGENT, srv_name
typedef enum ehttpc_parse_state {
HTTPC_PARSE_WAIT_FIRST_LINE = 0,
HTTPC_PARSE_WAIT_HEADERS,
HTTPC_PARSE_RX_DATA
} httpc_parse_state_t;
typedef struct _httpc_state
{
struct altcp_pcb* pcb;
ip_addr_t remote_addr;
u16_t remote_port;
int timeout_ticks;
struct pbuf *request;
struct pbuf *rx_hdrs;
u16_t rx_http_version;
u16_t rx_status;
altcp_recv_fn recv_fn;
const httpc_connection_t *conn_settings;
void* callback_arg;
u32_t rx_content_len;
u32_t hdr_content_len;
httpc_parse_state_t parse_state;
#if HTTPC_DEBUG_REQUEST
char* server_name;
char* uri;
#endif
} httpc_state_t;
/** Free http client state and deallocate all resources within */
static err_t
httpc_free_state(httpc_state_t* req)
{
struct altcp_pcb* tpcb;
if (req->request != NULL) {
pbuf_free(req->request);
req->request = NULL;
}
if (req->rx_hdrs != NULL) {
pbuf_free(req->rx_hdrs);
req->rx_hdrs = NULL;
}
tpcb = req->pcb;
mem_free(req);
req = NULL;
if (tpcb != NULL) {
err_t r;
altcp_arg(tpcb, NULL);
altcp_recv(tpcb, NULL);
altcp_err(tpcb, NULL);
altcp_poll(tpcb, NULL, 0);
altcp_sent(tpcb, NULL);
r = altcp_close(tpcb);
if (r != ERR_OK) {
altcp_abort(tpcb);
return ERR_ABRT;
}
}
return ERR_OK;
}
/** Close the connection: call finished callback and free the state */
static err_t
httpc_close(httpc_state_t* req, httpc_result_t result, u32_t server_response, err_t err)
{
if (req != NULL) {
if (req->conn_settings != NULL) {
if (req->conn_settings->result_fn != NULL) {
req->conn_settings->result_fn(req->callback_arg, result, req->rx_content_len, server_response, err);
}
}
return httpc_free_state(req);
}
return ERR_OK;
}
/** Parse http header response line 1 */
static err_t
http_parse_response_status(struct pbuf *p, u16_t *http_version, u16_t *http_status, u16_t *http_status_str_offset)
{
u16_t end1 = pbuf_memfind(p, "\r\n", 2, 0);
if (end1 != 0xFFFF) {
/* get parts of first line */
u16_t space1, space2;
space1 = pbuf_memfind(p, " ", 1, 0);
if (space1 != 0xFFFF) {
if ((pbuf_memcmp(p, 0, "HTTP/", 5) == 0) && (pbuf_get_at(p, 6) == '.')) {
char status_num[10];
size_t status_num_len;
/* parse http version */
u16_t version = pbuf_get_at(p, 5) - '0';
version <<= 8;
version |= pbuf_get_at(p, 7) - '0';
*http_version = version;
/* parse http status number */
space2 = pbuf_memfind(p, " ", 1, space1 + 1);
if (space2 != 0xFFFF) {
*http_status_str_offset = space2 + 1;
status_num_len = space2 - space1 - 1;
} else {
status_num_len = end1 - space1 - 1;
}
memset(status_num, 0, sizeof(status_num));
if (pbuf_copy_partial(p, status_num, (u16_t)status_num_len, space1 + 1) == status_num_len) {
int status = atoi(status_num);
if ((status > 0) && (status <= 0xFFFF)) {
*http_status = (u16_t)status;
return ERR_OK;
}
}
}
}
}
return ERR_VAL;
}
/** Wait for all headers to be received, return its length and content-length (if available) */
static err_t
http_wait_headers(struct pbuf *p, u32_t *content_length, u16_t *total_header_len)
{
u16_t end1 = pbuf_memfind(p, "\r\n\r\n", 4, 0);
if (end1 < (0xFFFF - 2)) {
/* all headers received */
/* check if we have a content length (@todo: case insensitive?) */
u16_t content_len_hdr;
*content_length = HTTPC_CONTENT_LEN_INVALID;
*total_header_len = end1 + 4;
content_len_hdr = pbuf_memfind(p, "Content-Length: ", 16, 0);
if (content_len_hdr != 0xFFFF) {
u16_t content_len_line_end = pbuf_memfind(p, "\r\n", 2, content_len_hdr);
if (content_len_line_end != 0xFFFF) {
char content_len_num[16];
u16_t content_len_num_len = (u16_t)(content_len_line_end - content_len_hdr - 16);
memset(content_len_num, 0, sizeof(content_len_num));
if (pbuf_copy_partial(p, content_len_num, content_len_num_len, content_len_hdr + 16) == content_len_num_len) {
int len = atoi(content_len_num);
if ((len >= 0) && ((u32_t)len < HTTPC_CONTENT_LEN_INVALID)) {
*content_length = (u32_t)len;
}
}
}
}
return ERR_OK;
}
return ERR_VAL;
}
/** http client tcp recv callback */
static err_t
httpc_tcp_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t r)
{
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(r);
if (p == NULL) {
httpc_result_t result;
if (req->parse_state != HTTPC_PARSE_RX_DATA) {
/* did not get RX data yet */
result = HTTPC_RESULT_ERR_CLOSED;
} else if ((req->hdr_content_len != HTTPC_CONTENT_LEN_INVALID) &&
(req->hdr_content_len != req->rx_content_len)) {
/* header has been received with content length but not all data received */
result = HTTPC_RESULT_ERR_CONTENT_LEN;
} else {
/* receiving data and either all data received or no content length header */
result = HTTPC_RESULT_OK;
}
return httpc_close(req, result, req->rx_status, ERR_OK);
}
if (req->parse_state != HTTPC_PARSE_RX_DATA) {
if (req->rx_hdrs == NULL) {
req->rx_hdrs = p;
} else {
pbuf_cat(req->rx_hdrs, p);
}
if (req->parse_state == HTTPC_PARSE_WAIT_FIRST_LINE) {
u16_t status_str_off;
err_t err = http_parse_response_status(req->rx_hdrs, &req->rx_http_version, &req->rx_status, &status_str_off);
if (err == ERR_OK) {
/* don't care status string */
req->parse_state = HTTPC_PARSE_WAIT_HEADERS;
}
}
if (req->parse_state == HTTPC_PARSE_WAIT_HEADERS) {
u16_t total_header_len;
err_t err = http_wait_headers(req->rx_hdrs, &req->hdr_content_len, &total_header_len);
if (err == ERR_OK) {
struct pbuf *q;
/* full header received, send window update for header bytes and call into client callback */
altcp_recved(pcb, total_header_len);
if (req->conn_settings) {
if (req->conn_settings->headers_done_fn) {
err = req->conn_settings->headers_done_fn(req, req->callback_arg, req->rx_hdrs, total_header_len, req->hdr_content_len);
if (err != ERR_OK) {
return httpc_close(req, HTTPC_RESULT_LOCAL_ABORT, req->rx_status, err);
}
}
}
/* hide header bytes in pbuf */
q = pbuf_free_header(req->rx_hdrs, total_header_len);
p = q;
req->rx_hdrs = NULL;
/* go on with data */
req->parse_state = HTTPC_PARSE_RX_DATA;
}
}
}
if ((p != NULL) && (req->parse_state == HTTPC_PARSE_RX_DATA)) {
req->rx_content_len += p->tot_len;
if (req->recv_fn != NULL) {
/* directly return here: the connection migth already be aborted from the callback! */
return req->recv_fn(req->callback_arg, pcb, p, r);
} else {
altcp_recved(pcb, p->tot_len);
pbuf_free(p);
}
}
return ERR_OK;
}
/** http client tcp err callback */
static void
httpc_tcp_err(void *arg, err_t err)
{
httpc_state_t* req = (httpc_state_t*)arg;
if (req != NULL) {
/* pcb has already been deallocated */
req->pcb = NULL;
httpc_close(req, HTTPC_RESULT_ERR_CLOSED, 0, err);
}
}
/** http client tcp poll callback */
static err_t
httpc_tcp_poll(void *arg, struct altcp_pcb *pcb)
{
/* implement timeout */
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(pcb);
if (req != NULL) {
if (req->timeout_ticks) {
req->timeout_ticks--;
}
if (!req->timeout_ticks) {
return httpc_close(req, HTTPC_RESULT_ERR_TIMEOUT, 0, ERR_OK);
}
}
return ERR_OK;
}
/** http client tcp sent callback */
static err_t
httpc_tcp_sent(void *arg, struct altcp_pcb *pcb, u16_t len)
{
/* nothing to do here for now */
LWIP_UNUSED_ARG(arg);
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(len);
return ERR_OK;
}
/** http client tcp connected callback */
static err_t
httpc_tcp_connected(void *arg, struct altcp_pcb *pcb, err_t err)
{
err_t r;
httpc_state_t* req = (httpc_state_t*)arg;
LWIP_UNUSED_ARG(pcb);
LWIP_UNUSED_ARG(err);
/* send request; last char is zero termination */
r = altcp_write(req->pcb, req->request->payload, req->request->len - 1, TCP_WRITE_FLAG_COPY);
if (r != ERR_OK) {
/* could not write the single small request -> fail, don't retry */
return httpc_close(req, HTTPC_RESULT_ERR_MEM, 0, r);
}
/* everything written, we can free the request */
pbuf_free(req->request);
req->request = NULL;
altcp_output(req->pcb);
return ERR_OK;
}
/** Start the http request when the server IP addr is known */
static err_t
httpc_get_internal_addr(httpc_state_t* req, const ip_addr_t *ipaddr)
{
err_t err;
LWIP_ASSERT("req != NULL", req != NULL);
if (&req->remote_addr != ipaddr) {
/* fill in remote addr if called externally */
req->remote_addr = *ipaddr;
}
err = altcp_connect(req->pcb, &req->remote_addr, req->remote_port, httpc_tcp_connected);
if (err == ERR_OK) {
return ERR_OK;
}
LWIP_DEBUGF(HTTPC_DEBUG_WARN_STATE, ("tcp_connect failed: %d\n", (int)err));
return err;
}
#if LWIP_DNS
/** DNS callback
* If ipaddr is non-NULL, resolving succeeded and the request can be sent, otherwise it failed.
*/
static void
httpc_dns_found(const char* hostname, const ip_addr_t *ipaddr, void *arg)
{
httpc_state_t* req = (httpc_state_t*)arg;
err_t err;
httpc_result_t result;
LWIP_UNUSED_ARG(hostname);
if (ipaddr != NULL) {
err = httpc_get_internal_addr(req, ipaddr);
if (err == ERR_OK) {
return;
}
result = HTTPC_RESULT_ERR_CONNECT;
} else {
LWIP_DEBUGF(HTTPC_DEBUG_WARN_STATE, ("httpc_dns_found: failed to resolve hostname: %s\n",
hostname));
result = HTTPC_RESULT_ERR_HOSTNAME;
err = ERR_ARG;
}
httpc_close(req, result, 0, err);
}
#endif /* LWIP_DNS */
/** Start the http request after converting 'server_name' to ip address (DNS or address string) */
static err_t
httpc_get_internal_dns(httpc_state_t* req, const char* server_name)
{
err_t err;
LWIP_ASSERT("req != NULL", req != NULL);
#if LWIP_DNS
err = dns_gethostbyname(server_name, &req->remote_addr, httpc_dns_found, req);
#else
err = ipaddr_aton(server_name, &req->remote_addr) ? ERR_OK : ERR_ARG;
#endif
if (err == ERR_OK) {
/* cached or IP-string */
err = httpc_get_internal_addr(req, &req->remote_addr);
} else if (err == ERR_INPROGRESS) {
return ERR_OK;
}
return err;
}
static int
httpc_create_request_string(const httpc_connection_t *settings, const char* server_name, int server_port, const char* uri,
int use_host, char *buffer, size_t buffer_size)
{
if (settings->use_proxy) {
LWIP_ASSERT("server_name != NULL", server_name != NULL);
if (server_port != HTTP_DEFAULT_PORT) {
return snprintf(buffer, buffer_size, HTTPC_REQ_11_PROXY_PORT_FORMAT(server_name, server_port, uri, server_name));
} else {
return snprintf(buffer, buffer_size, HTTPC_REQ_11_PROXY_FORMAT(server_name, uri, server_name));
}
} else if (use_host) {
LWIP_ASSERT("server_name != NULL", server_name != NULL);
return snprintf(buffer, buffer_size, HTTPC_REQ_11_HOST_FORMAT(uri, server_name));
} else {
return snprintf(buffer, buffer_size, HTTPC_REQ_11_FORMAT(uri));
}
}
/** Initialize the connection struct */
static err_t
httpc_init_connection_common(httpc_state_t **connection, const httpc_connection_t *settings, const char* server_name,
u16_t server_port, const char* uri, altcp_recv_fn recv_fn, void* callback_arg, int use_host)
{
size_t alloc_len;
mem_size_t mem_alloc_len;
int req_len, req_len2;
httpc_state_t *req;
#if HTTPC_DEBUG_REQUEST
size_t server_name_len, uri_len;
#endif
LWIP_ASSERT("uri != NULL", uri != NULL);
/* get request len */
req_len = httpc_create_request_string(settings, server_name, server_port, uri, use_host, NULL, 0);
if ((req_len < 0) || (req_len > 0xFFFF)) {
return ERR_VAL;
}
/* alloc state and request in one block */
alloc_len = sizeof(httpc_state_t);
#if HTTPC_DEBUG_REQUEST
server_name_len = server_name ? strlen(server_name) : 0;
uri_len = strlen(uri);
alloc_len += server_name_len + 1 + uri_len + 1;
#endif
mem_alloc_len = (mem_size_t)alloc_len;
if ((mem_alloc_len < alloc_len) || (req_len + 1 > 0xFFFF)) {
return ERR_VAL;
}
req = (httpc_state_t*)mem_malloc((mem_size_t)alloc_len);
if(req == NULL) {
return ERR_MEM;
}
memset(req, 0, sizeof(httpc_state_t));
req->timeout_ticks = HTTPC_POLL_TIMEOUT;
req->request = pbuf_alloc(PBUF_RAW, (u16_t)(req_len + 1), PBUF_RAM);
if (req->request == NULL) {
httpc_free_state(req);
return ERR_MEM;
}
if (req->request->next != NULL) {
/* need a pbuf in one piece */
httpc_free_state(req);
return ERR_MEM;
}
req->hdr_content_len = HTTPC_CONTENT_LEN_INVALID;
#if HTTPC_DEBUG_REQUEST
req->server_name = (char*)(req + 1);
if (server_name) {
memcpy(req->server_name, server_name, server_name_len + 1);
}
req->uri = req->server_name + server_name_len + 1;
memcpy(req->uri, uri, uri_len + 1);
#endif
req->pcb = altcp_new(settings->altcp_allocator);
if(req->pcb == NULL) {
httpc_free_state(req);
return ERR_MEM;
}
req->remote_port = settings->use_proxy ? settings->proxy_port : server_port;
altcp_arg(req->pcb, req);
altcp_recv(req->pcb, httpc_tcp_recv);
altcp_err(req->pcb, httpc_tcp_err);
altcp_poll(req->pcb, httpc_tcp_poll, HTTPC_POLL_INTERVAL);
altcp_sent(req->pcb, httpc_tcp_sent);
/* set up request buffer */
req_len2 = httpc_create_request_string(settings, server_name, server_port, uri, use_host,
(char *)req->request->payload, req_len + 1);
if (req_len2 != req_len) {
httpc_free_state(req);
return ERR_VAL;
}
req->recv_fn = recv_fn;
req->conn_settings = settings;
req->callback_arg = callback_arg;
*connection = req;
return ERR_OK;
}
/**
* Initialize the connection struct
*/
static err_t
httpc_init_connection(httpc_state_t **connection, const httpc_connection_t *settings, const char* server_name,
u16_t server_port, const char* uri, altcp_recv_fn recv_fn, void* callback_arg)
{
return httpc_init_connection_common(connection, settings, server_name, server_port, uri, recv_fn, callback_arg, 1);
}
/**
* Initialize the connection struct (from IP address)
*/
static err_t
httpc_init_connection_addr(httpc_state_t **connection, const httpc_connection_t *settings,
const ip_addr_t* server_addr, u16_t server_port, const char* uri,
altcp_recv_fn recv_fn, void* callback_arg)
{
char *server_addr_str = ipaddr_ntoa(server_addr);
if (server_addr_str == NULL) {
return ERR_VAL;
}
return httpc_init_connection_common(connection, settings, server_addr_str, server_port, uri,
recv_fn, callback_arg, 1);
}
/**
* @ingroup httpc
* HTTP client API: get a file by passing server IP address
*
* @param server_addr IP address of the server to connect
* @param port tcp port of the server
* @param uri uri to get from the server, remember leading "/"!
* @param settings connection settings (callbacks, proxy, etc.)
* @param recv_fn the http body (not the headers) are passed to this callback
* @param callback_arg argument passed to all the callbacks
* @param connection retreives the connection handle (to match in callbacks)
* @return ERR_OK if starting the request succeeds (callback_fn will be called later)
* or an error code
*/
err_t
httpc_get_file(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings,
altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection)
{
err_t err;
httpc_state_t* req;
LWIP_ERROR("invalid parameters", (server_addr != NULL) && (uri != NULL) && (recv_fn != NULL), return ERR_ARG;);
err = httpc_init_connection_addr(&req, settings, server_addr, port,
uri, recv_fn, callback_arg);
if (err != ERR_OK) {
return err;
}
if (settings->use_proxy) {
err = httpc_get_internal_addr(req, &settings->proxy_addr);
} else {
err = httpc_get_internal_addr(req, server_addr);
}
if(err != ERR_OK) {
httpc_free_state(req);
return err;
}
if (connection != NULL) {
*connection = req;
}
return ERR_OK;
}
/**
* @ingroup httpc
* HTTP client API: get a file by passing server name as string (DNS name or IP address string)
*
* @param server_name server name as string (DNS name or IP address string)
* @param port tcp port of the server
* @param uri uri to get from the server, remember leading "/"!
* @param settings connection settings (callbacks, proxy, etc.)
* @param recv_fn the http body (not the headers) are passed to this callback
* @param callback_arg argument passed to all the callbacks
* @param connection retreives the connection handle (to match in callbacks)
* @return ERR_OK if starting the request succeeds (callback_fn will be called later)
* or an error code
*/
err_t
httpc_get_file_dns(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings,
altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection)
{
err_t err;
httpc_state_t* req;
LWIP_ERROR("invalid parameters", (server_name != NULL) && (uri != NULL) && (recv_fn != NULL), return ERR_ARG;);
err = httpc_init_connection(&req, settings, server_name, port, uri, recv_fn, callback_arg);
if (err != ERR_OK) {
return err;
}
if (settings->use_proxy) {
err = httpc_get_internal_addr(req, &settings->proxy_addr);
} else {
err = httpc_get_internal_dns(req, server_name);
}
if(err != ERR_OK) {
httpc_free_state(req);
return err;
}
if (connection != NULL) {
*connection = req;
}
return ERR_OK;
}
#if LWIP_HTTPC_HAVE_FILE_IO
/* Implementation to disk via fopen/fwrite/fclose follows */
typedef struct _httpc_filestate
{
const char* local_file_name;
FILE *file;
httpc_connection_t settings;
const httpc_connection_t *client_settings;
void *callback_arg;
} httpc_filestate_t;
static void httpc_fs_result(void *arg, httpc_result_t httpc_result, u32_t rx_content_len,
u32_t srv_res, err_t err);
/** Initalize http client state for download to file system */
static err_t
httpc_fs_init(httpc_filestate_t **filestate_out, const char* local_file_name,
const httpc_connection_t *settings, void* callback_arg)
{
httpc_filestate_t *filestate;
size_t file_len, alloc_len;
FILE *f;
file_len = strlen(local_file_name);
alloc_len = sizeof(httpc_filestate_t) + file_len + 1;
filestate = (httpc_filestate_t *)mem_malloc((mem_size_t)alloc_len);
if (filestate == NULL) {
return ERR_MEM;
}
memset(filestate, 0, sizeof(httpc_filestate_t));
filestate->local_file_name = (const char *)(filestate + 1);
memcpy((char *)(filestate + 1), local_file_name, file_len + 1);
filestate->file = NULL;
filestate->client_settings = settings;
filestate->callback_arg = callback_arg;
/* copy client settings but override result callback */
memcpy(&filestate->settings, settings, sizeof(httpc_connection_t));
filestate->settings.result_fn = httpc_fs_result;
f = fopen(local_file_name, "wb");
if(f == NULL) {
/* could not open file */
mem_free(filestate);
return ERR_VAL;
}
filestate->file = f;
*filestate_out = filestate;
return ERR_OK;
}
/** Free http client state for download to file system */
static void
httpc_fs_free(httpc_filestate_t *filestate)
{
if (filestate != NULL) {
if (filestate->file != NULL) {
fclose(filestate->file);
filestate->file = NULL;
}
mem_free(filestate);
}
}
/** Connection closed (success or error) */
static void
httpc_fs_result(void *arg, httpc_result_t httpc_result, u32_t rx_content_len,
u32_t srv_res, err_t err)
{
httpc_filestate_t *filestate = (httpc_filestate_t *)arg;
if (filestate != NULL) {
if (filestate->client_settings->result_fn != NULL) {
filestate->client_settings->result_fn(filestate->callback_arg, httpc_result, rx_content_len,
srv_res, err);
}
httpc_fs_free(filestate);
}
}
/** tcp recv callback */
static err_t
httpc_fs_tcp_recv(void *arg, struct altcp_pcb *pcb, struct pbuf *p, err_t err)
{
httpc_filestate_t *filestate = (httpc_filestate_t*)arg;
struct pbuf* q;
LWIP_UNUSED_ARG(err);
LWIP_ASSERT("p != NULL", p != NULL);
for (q = p; q != NULL; q = q->next) {
fwrite(q->payload, 1, q->len, filestate->file);
}
altcp_recved(pcb, p->tot_len);
pbuf_free(p);
return ERR_OK;
}
/**
* @ingroup httpc
* HTTP client API: get a file to disk by passing server IP address
*
* @param server_addr IP address of the server to connect
* @param port tcp port of the server
* @param uri uri to get from the server, remember leading "/"!
* @param settings connection settings (callbacks, proxy, etc.)
* @param callback_arg argument passed to all the callbacks
* @param connection retreives the connection handle (to match in callbacks)
* @return ERR_OK if starting the request succeeds (callback_fn will be called later)
* or an error code
*/
err_t
httpc_get_file_to_disk(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings,
void* callback_arg, const char* local_file_name, httpc_state_t **connection)
{
err_t err;
httpc_state_t* req;
httpc_filestate_t *filestate;
LWIP_ERROR("invalid parameters", (server_addr != NULL) && (uri != NULL) && (local_file_name != NULL), return ERR_ARG;);
err = httpc_fs_init(&filestate, local_file_name, settings, callback_arg);
if (err != ERR_OK) {
return err;
}
err = httpc_init_connection_addr(&req, &filestate->settings, server_addr, port,
uri, httpc_fs_tcp_recv, filestate);
if (err != ERR_OK) {
httpc_fs_free(filestate);
return err;
}
if (settings->use_proxy) {
err = httpc_get_internal_addr(req, &settings->proxy_addr);
} else {
err = httpc_get_internal_addr(req, server_addr);
}
if(err != ERR_OK) {
httpc_fs_free(filestate);
httpc_free_state(req);
return err;
}
if (connection != NULL) {
*connection = req;
}
return ERR_OK;
}
/**
* @ingroup httpc
* HTTP client API: get a file to disk by passing server name as string (DNS name or IP address string)
*
* @param server_name server name as string (DNS name or IP address string)
* @param port tcp port of the server
* @param uri uri to get from the server, remember leading "/"!
* @param settings connection settings (callbacks, proxy, etc.)
* @param callback_arg argument passed to all the callbacks
* @param connection retreives the connection handle (to match in callbacks)
* @return ERR_OK if starting the request succeeds (callback_fn will be called later)
* or an error code
*/
err_t
httpc_get_file_dns_to_disk(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings,
void* callback_arg, const char* local_file_name, httpc_state_t **connection)
{
err_t err;
httpc_state_t* req;
httpc_filestate_t *filestate;
LWIP_ERROR("invalid parameters", (server_name != NULL) && (uri != NULL) && (local_file_name != NULL), return ERR_ARG;);
err = httpc_fs_init(&filestate, local_file_name, settings, callback_arg);
if (err != ERR_OK) {
return err;
}
err = httpc_init_connection(&req, &filestate->settings, server_name, port,
uri, httpc_fs_tcp_recv, filestate);
if (err != ERR_OK) {
httpc_fs_free(filestate);
return err;
}
if (settings->use_proxy) {
err = httpc_get_internal_addr(req, &settings->proxy_addr);
} else {
err = httpc_get_internal_dns(req, server_name);
}
if(err != ERR_OK) {
httpc_fs_free(filestate);
httpc_free_state(req);
return err;
}
if (connection != NULL) {
*connection = req;
}
return ERR_OK;
}
#endif /* LWIP_HTTPC_HAVE_FILE_IO */
#endif /* LWIP_TCP && LWIP_CALLBACK_API */

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#ifndef LWIP_HTTPD_STRUCTS_H
#define LWIP_HTTPD_STRUCTS_H
#include "lwip/apps/httpd.h"
#if LWIP_HTTPD_DYNAMIC_HEADERS
/** This struct is used for a list of HTTP header strings for various
* filename extensions. */
typedef struct {
const char *extension;
const char *content_type;
} tHTTPHeader;
/** A list of strings used in HTTP headers (see RFC 1945 HTTP/1.0 and
* RFC 2616 HTTP/1.1 for header field definitions) */
static const char *const g_psHTTPHeaderStrings[] = {
"HTTP/1.0 200 OK\r\n",
"HTTP/1.0 404 File not found\r\n",
"HTTP/1.0 400 Bad Request\r\n",
"HTTP/1.0 501 Not Implemented\r\n",
"HTTP/1.1 200 OK\r\n",
"HTTP/1.1 404 File not found\r\n",
"HTTP/1.1 400 Bad Request\r\n",
"HTTP/1.1 501 Not Implemented\r\n",
"Content-Length: ",
"Connection: Close\r\n",
"Connection: keep-alive\r\n",
"Connection: keep-alive\r\nContent-Length: ",
"Server: "HTTPD_SERVER_AGENT"\r\n",
"\r\n<html><body><h2>404: The requested file cannot be found.</h2></body></html>\r\n"
#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
, "Connection: keep-alive\r\nContent-Length: 77\r\n\r\n<html><body><h2>404: The requested file cannot be found.</h2></body></html>\r\n"
#endif
};
/* Indexes into the g_psHTTPHeaderStrings array */
#define HTTP_HDR_OK 0 /* 200 OK */
#define HTTP_HDR_NOT_FOUND 1 /* 404 File not found */
#define HTTP_HDR_BAD_REQUEST 2 /* 400 Bad request */
#define HTTP_HDR_NOT_IMPL 3 /* 501 Not Implemented */
#define HTTP_HDR_OK_11 4 /* 200 OK */
#define HTTP_HDR_NOT_FOUND_11 5 /* 404 File not found */
#define HTTP_HDR_BAD_REQUEST_11 6 /* 400 Bad request */
#define HTTP_HDR_NOT_IMPL_11 7 /* 501 Not Implemented */
#define HTTP_HDR_CONTENT_LENGTH 8 /* Content-Length: (HTTP 1.0)*/
#define HTTP_HDR_CONN_CLOSE 9 /* Connection: Close (HTTP 1.1) */
#define HTTP_HDR_CONN_KEEPALIVE 10 /* Connection: keep-alive (HTTP 1.1) */
#define HTTP_HDR_KEEPALIVE_LEN 11 /* Connection: keep-alive + Content-Length: (HTTP 1.1)*/
#define HTTP_HDR_SERVER 12 /* Server: HTTPD_SERVER_AGENT */
#define DEFAULT_404_HTML 13 /* default 404 body */
#if LWIP_HTTPD_SUPPORT_11_KEEPALIVE
#define DEFAULT_404_HTML_PERSISTENT 14 /* default 404 body, but including Connection: keep-alive */
#endif
#define HTTP_CONTENT_TYPE(contenttype) "Content-Type: "contenttype"\r\n\r\n"
#define HTTP_CONTENT_TYPE_ENCODING(contenttype, encoding) "Content-Type: "contenttype"\r\nContent-Encoding: "encoding"\r\n\r\n"
#define HTTP_HDR_HTML HTTP_CONTENT_TYPE("text/html")
#define HTTP_HDR_SSI HTTP_CONTENT_TYPE("text/html\r\nExpires: Fri, 10 Apr 2008 14:00:00 GMT\r\nPragma: no-cache")
#define HTTP_HDR_GIF HTTP_CONTENT_TYPE("image/gif")
#define HTTP_HDR_PNG HTTP_CONTENT_TYPE("image/png")
#define HTTP_HDR_JPG HTTP_CONTENT_TYPE("image/jpeg")
#define HTTP_HDR_BMP HTTP_CONTENT_TYPE("image/bmp")
#define HTTP_HDR_ICO HTTP_CONTENT_TYPE("image/x-icon")
#define HTTP_HDR_APP HTTP_CONTENT_TYPE("application/octet-stream")
#define HTTP_HDR_JS HTTP_CONTENT_TYPE("application/javascript")
#define HTTP_HDR_RA HTTP_CONTENT_TYPE("application/javascript")
#define HTTP_HDR_CSS HTTP_CONTENT_TYPE("text/css")
#define HTTP_HDR_SWF HTTP_CONTENT_TYPE("application/x-shockwave-flash")
#define HTTP_HDR_XML HTTP_CONTENT_TYPE("text/xml")
#define HTTP_HDR_PDF HTTP_CONTENT_TYPE("application/pdf")
#define HTTP_HDR_JSON HTTP_CONTENT_TYPE("application/json")
#define HTTP_HDR_CSV HTTP_CONTENT_TYPE("text/csv")
#define HTTP_HDR_TSV HTTP_CONTENT_TYPE("text/tsv")
#define HTTP_HDR_SVG HTTP_CONTENT_TYPE("image/svg+xml")
#define HTTP_HDR_SVGZ HTTP_CONTENT_TYPE_ENCODING("image/svg+xml", "gzip")
#define HTTP_HDR_DEFAULT_TYPE HTTP_CONTENT_TYPE("text/plain")
/** A list of extension-to-HTTP header strings (see outdated RFC 1700 MEDIA TYPES
* and http://www.iana.org/assignments/media-types for registered content types
* and subtypes) */
static const tHTTPHeader g_psHTTPHeaders[] = {
{ "html", HTTP_HDR_HTML},
{ "htm", HTTP_HDR_HTML},
{ "shtml", HTTP_HDR_SSI},
{ "shtm", HTTP_HDR_SSI},
{ "ssi", HTTP_HDR_SSI},
{ "gif", HTTP_HDR_GIF},
{ "png", HTTP_HDR_PNG},
{ "jpg", HTTP_HDR_JPG},
{ "bmp", HTTP_HDR_BMP},
{ "ico", HTTP_HDR_ICO},
{ "class", HTTP_HDR_APP},
{ "cls", HTTP_HDR_APP},
{ "js", HTTP_HDR_JS},
{ "ram", HTTP_HDR_RA},
{ "css", HTTP_HDR_CSS},
{ "swf", HTTP_HDR_SWF},
{ "xml", HTTP_HDR_XML},
{ "xsl", HTTP_HDR_XML},
{ "pdf", HTTP_HDR_PDF},
{ "json", HTTP_HDR_JSON}
#ifdef HTTPD_ADDITIONAL_CONTENT_TYPES
/* If you need to add content types not listed here:
* #define HTTPD_ADDITIONAL_CONTENT_TYPES {"ct1", HTTP_CONTENT_TYPE("text/ct1")}, {"exe", HTTP_CONTENT_TYPE("application/exe")}
*/
, HTTPD_ADDITIONAL_CONTENT_TYPES
#endif
};
#define NUM_HTTP_HEADERS LWIP_ARRAYSIZE(g_psHTTPHeaders)
#endif /* LWIP_HTTPD_DYNAMIC_HEADERS */
#if LWIP_HTTPD_SSI
static const char *const g_pcSSIExtensions[] = {
".shtml", ".shtm", ".ssi", ".xml", ".json"
};
#define NUM_SHTML_EXTENSIONS LWIP_ARRAYSIZE(g_pcSSIExtensions)
#endif /* LWIP_HTTPD_SSI */
#endif /* LWIP_HTTPD_STRUCTS_H */

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#!/usr/bin/perl
open(OUTPUT, "> fsdata.c");
chdir("fs");
open(FILES, "find . -type f |");
while($file = <FILES>) {
# Do not include files in CVS directories nor backup files.
if($file =~ /(CVS|~)/) {
next;
}
chop($file);
open(HEADER, "> /tmp/header") || die $!;
if($file =~ /404/) {
print(HEADER "HTTP/1.0 404 File not found\r\n");
} else {
print(HEADER "HTTP/1.0 200 OK\r\n");
}
print(HEADER "Server: lwIP/pre-0.6 (http://www.sics.se/~adam/lwip/)\r\n");
if($file =~ /\.html$/) {
print(HEADER "Content-type: text/html\r\n");
} elsif($file =~ /\.gif$/) {
print(HEADER "Content-type: image/gif\r\n");
} elsif($file =~ /\.png$/) {
print(HEADER "Content-type: image/png\r\n");
} elsif($file =~ /\.jpg$/) {
print(HEADER "Content-type: image/jpeg\r\n");
} elsif($file =~ /\.class$/) {
print(HEADER "Content-type: application/octet-stream\r\n");
} elsif($file =~ /\.ram$/) {
print(HEADER "Content-type: audio/x-pn-realaudio\r\n");
} else {
print(HEADER "Content-type: text/plain\r\n");
}
print(HEADER "\r\n");
close(HEADER);
unless($file =~ /\.plain$/ || $file =~ /cgi/) {
system("cat /tmp/header $file > /tmp/file");
} else {
system("cp $file /tmp/file");
}
open(FILE, "/tmp/file");
unlink("/tmp/file");
unlink("/tmp/header");
$file =~ s/\.//;
$fvar = $file;
$fvar =~ s-/-_-g;
$fvar =~ s-\.-_-g;
print(OUTPUT "static const unsigned char data".$fvar."[] = {\n");
print(OUTPUT "\t/* $file */\n\t");
for($j = 0; $j < length($file); $j++) {
printf(OUTPUT "%#02x, ", unpack("C", substr($file, $j, 1)));
}
printf(OUTPUT "0,\n");
$i = 0;
while(read(FILE, $data, 1)) {
if($i == 0) {
print(OUTPUT "\t");
}
printf(OUTPUT "%#02x, ", unpack("C", $data));
$i++;
if($i == 10) {
print(OUTPUT "\n");
$i = 0;
}
}
print(OUTPUT "};\n\n");
close(FILE);
push(@fvars, $fvar);
push(@files, $file);
}
for($i = 0; $i < @fvars; $i++) {
$file = $files[$i];
$fvar = $fvars[$i];
if($i == 0) {
$prevfile = "NULL";
} else {
$prevfile = "file" . $fvars[$i - 1];
}
print(OUTPUT "const struct fsdata_file file".$fvar."[] = {{$prevfile, data$fvar, ");
print(OUTPUT "data$fvar + ". (length($file) + 1) .", ");
print(OUTPUT "sizeof(data$fvar) - ". (length($file) + 1) ."}};\n\n");
}
print(OUTPUT "#define FS_ROOT file$fvars[$i - 1]\n\n");
print(OUTPUT "#define FS_NUMFILES $i\n");

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This directory contains a script ('makefsdata') to create C code suitable for
httpd for given html pages (or other files) in a directory.
There is also a plain C console application doing the same and extended a bit.
Usage: htmlgen [targetdir] [-s] [-i]s
targetdir: relative or absolute path to files to convert
switch -s: toggle processing of subdirectories (default is on)
switch -e: exclude HTTP header from file (header is created at runtime, default is on)
switch -11: include HTTP 1.1 header (1.0 is default)
if targetdir not specified, makefsdata will attempt to
process files in subdirectory 'fs'.

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MXC_A27-PCB4.5-270T/lib/lwip/src/apps/http/makefsdata/tinydir.h Normal file
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/*
Copyright (c) 2013-2017, tinydir authors:
- Cong Xu
- Lautis Sun
- Baudouin Feildel
- Andargor <andargor@yahoo.com>
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.
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.
*/
#ifndef TINYDIR_H
#define TINYDIR_H
#ifdef __cplusplus
extern "C" {
#endif
#if ((defined _UNICODE) && !(defined UNICODE))
#define UNICODE
#endif
#if ((defined UNICODE) && !(defined _UNICODE))
#define _UNICODE
#endif
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifdef _MSC_VER
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <tchar.h>
# pragma warning(push)
# pragma warning (disable : 4996)
#else
# include <dirent.h>
# include <libgen.h>
# include <sys/stat.h>
# include <stddef.h>
#endif
#ifdef __MINGW32__
# include <tchar.h>
#endif
/* types */
/* Windows UNICODE wide character support */
#if defined _MSC_VER || defined __MINGW32__
#define _tinydir_char_t TCHAR
#define TINYDIR_STRING(s) _TEXT(s)
#define _tinydir_strlen _tcslen
#define _tinydir_strcpy _tcscpy
#define _tinydir_strcat _tcscat
#define _tinydir_strcmp _tcscmp
#define _tinydir_strrchr _tcsrchr
#define _tinydir_strncmp _tcsncmp
#else
#define _tinydir_char_t char
#define TINYDIR_STRING(s) s
#define _tinydir_strlen strlen
#define _tinydir_strcpy strcpy
#define _tinydir_strcat strcat
#define _tinydir_strcmp strcmp
#define _tinydir_strrchr strrchr
#define _tinydir_strncmp strncmp
#endif
#if (defined _MSC_VER || defined __MINGW32__)
#include <windows.h>
#define _TINYDIR_PATH_MAX MAX_PATH
#elif defined __linux__
#include <linux/limits.h>
#define _TINYDIR_PATH_MAX PATH_MAX
#else
#define _TINYDIR_PATH_MAX 4096
#endif
#ifdef _MSC_VER
/* extra chars for the "\\*" mask */
# define _TINYDIR_PATH_EXTRA 2
#else
# define _TINYDIR_PATH_EXTRA 0
#endif
#define _TINYDIR_FILENAME_MAX 256
#if (defined _MSC_VER || defined __MINGW32__)
#define _TINYDIR_DRIVE_MAX 3
#endif
#ifdef _MSC_VER
# define _TINYDIR_FUNC static __inline
#elif !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
# define _TINYDIR_FUNC static __inline__
#else
# define _TINYDIR_FUNC static inline
#endif
/* readdir_r usage; define TINYDIR_USE_READDIR_R to use it (if supported) */
#ifdef TINYDIR_USE_READDIR_R
/* readdir_r is a POSIX-only function, and may not be available under various
* environments/settings, e.g. MinGW. Use readdir fallback */
#if _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _BSD_SOURCE || _SVID_SOURCE ||\
_POSIX_SOURCE
# define _TINYDIR_HAS_READDIR_R
#endif
#if _POSIX_C_SOURCE >= 200112L
# define _TINYDIR_HAS_FPATHCONF
# include <unistd.h>
#endif
#if _BSD_SOURCE || _SVID_SOURCE || \
(_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700)
# define _TINYDIR_HAS_DIRFD
# include <sys/types.h>
#endif
#if defined _TINYDIR_HAS_FPATHCONF && defined _TINYDIR_HAS_DIRFD &&\
defined _PC_NAME_MAX
# define _TINYDIR_USE_FPATHCONF
#endif
#if defined __MINGW32__ || !defined _TINYDIR_HAS_READDIR_R ||\
!(defined _TINYDIR_USE_FPATHCONF || defined NAME_MAX)
# define _TINYDIR_USE_READDIR
#endif
/* Use readdir by default */
#else
# define _TINYDIR_USE_READDIR
#endif
/* MINGW32 has two versions of dirent, ASCII and UNICODE*/
#ifndef _MSC_VER
#if (defined __MINGW32__) && (defined _UNICODE)
#define _TINYDIR_DIR _WDIR
#define _tinydir_dirent _wdirent
#define _tinydir_opendir _wopendir
#define _tinydir_readdir _wreaddir
#define _tinydir_closedir _wclosedir
#else
#define _TINYDIR_DIR DIR
#define _tinydir_dirent dirent
#define _tinydir_opendir opendir
#define _tinydir_readdir readdir
#define _tinydir_closedir closedir
#endif
#endif
/* Allow user to use a custom allocator by defining _TINYDIR_MALLOC and _TINYDIR_FREE. */
#if defined(_TINYDIR_MALLOC) && defined(_TINYDIR_FREE)
#elif !defined(_TINYDIR_MALLOC) && !defined(_TINYDIR_FREE)
#else
#error "Either define both alloc and free or none of them!"
#endif
#if !defined(_TINYDIR_MALLOC)
#define _TINYDIR_MALLOC(_size) malloc(_size)
#define _TINYDIR_FREE(_ptr) free(_ptr)
#endif /* !defined(_TINYDIR_MALLOC) */
typedef struct tinydir_file
{
_tinydir_char_t path[_TINYDIR_PATH_MAX];
_tinydir_char_t name[_TINYDIR_FILENAME_MAX];
_tinydir_char_t *extension;
int is_dir;
int is_reg;
#ifndef _MSC_VER
#ifdef __MINGW32__
struct _stat _s;
#else
struct stat _s;
#endif
#endif
} tinydir_file;
typedef struct tinydir_dir
{
_tinydir_char_t path[_TINYDIR_PATH_MAX];
int has_next;
size_t n_files;
tinydir_file *_files;
#ifdef _MSC_VER
HANDLE _h;
WIN32_FIND_DATA _f;
#else
_TINYDIR_DIR *_d;
struct _tinydir_dirent *_e;
#ifndef _TINYDIR_USE_READDIR
struct _tinydir_dirent *_ep;
#endif
#endif
} tinydir_dir;
/* declarations */
_TINYDIR_FUNC
int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path);
_TINYDIR_FUNC
int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path);
_TINYDIR_FUNC
void tinydir_close(tinydir_dir *dir);
_TINYDIR_FUNC
int tinydir_next(tinydir_dir *dir);
_TINYDIR_FUNC
int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file);
_TINYDIR_FUNC
int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i);
_TINYDIR_FUNC
int tinydir_open_subdir_n(tinydir_dir *dir, size_t i);
_TINYDIR_FUNC
int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path);
_TINYDIR_FUNC
void _tinydir_get_ext(tinydir_file *file);
_TINYDIR_FUNC
int _tinydir_file_cmp(const void *a, const void *b);
#ifndef _MSC_VER
#ifndef _TINYDIR_USE_READDIR
_TINYDIR_FUNC
size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp);
#endif
#endif
/* definitions*/
_TINYDIR_FUNC
int tinydir_open(tinydir_dir *dir, const _tinydir_char_t *path)
{
#ifndef _MSC_VER
#ifndef _TINYDIR_USE_READDIR
int error;
int size; /* using int size */
#endif
#else
_tinydir_char_t path_buf[_TINYDIR_PATH_MAX];
#endif
_tinydir_char_t *pathp;
if (dir == NULL || path == NULL || _tinydir_strlen(path) == 0)
{
errno = EINVAL;
return -1;
}
if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX)
{
errno = ENAMETOOLONG;
return -1;
}
/* initialise dir */
dir->_files = NULL;
#ifdef _MSC_VER
dir->_h = INVALID_HANDLE_VALUE;
#else
dir->_d = NULL;
#ifndef _TINYDIR_USE_READDIR
dir->_ep = NULL;
#endif
#endif
tinydir_close(dir);
_tinydir_strcpy(dir->path, path);
/* Remove trailing slashes */
pathp = &dir->path[_tinydir_strlen(dir->path) - 1];
while (pathp != dir->path && (*pathp == TINYDIR_STRING('\\') || *pathp == TINYDIR_STRING('/')))
{
*pathp = TINYDIR_STRING('\0');
pathp++;
}
#ifdef _MSC_VER
_tinydir_strcpy(path_buf, dir->path);
_tinydir_strcat(path_buf, TINYDIR_STRING("\\*"));
#if (defined WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP)
dir->_h = FindFirstFileEx(path_buf, FindExInfoStandard, &dir->_f, FindExSearchNameMatch, NULL, 0);
#else
dir->_h = FindFirstFile(path_buf, &dir->_f);
#endif
if (dir->_h == INVALID_HANDLE_VALUE)
{
errno = ENOENT;
#else
dir->_d = _tinydir_opendir(path);
if (dir->_d == NULL)
{
#endif
goto bail;
}
/* read first file */
dir->has_next = 1;
#ifndef _MSC_VER
#ifdef _TINYDIR_USE_READDIR
dir->_e = _tinydir_readdir(dir->_d);
#else
/* allocate dirent buffer for readdir_r */
size = _tinydir_dirent_buf_size(dir->_d); /* conversion to int */
if (size == -1) return -1;
dir->_ep = (struct _tinydir_dirent*)_TINYDIR_MALLOC(size);
if (dir->_ep == NULL) return -1;
error = readdir_r(dir->_d, dir->_ep, &dir->_e);
if (error != 0) return -1;
#endif
if (dir->_e == NULL)
{
dir->has_next = 0;
}
#endif
return 0;
bail:
tinydir_close(dir);
return -1;
}
_TINYDIR_FUNC
int tinydir_open_sorted(tinydir_dir *dir, const _tinydir_char_t *path)
{
/* Count the number of files first, to pre-allocate the files array */
size_t n_files = 0;
if (tinydir_open(dir, path) == -1)
{
return -1;
}
while (dir->has_next)
{
n_files++;
if (tinydir_next(dir) == -1)
{
goto bail;
}
}
tinydir_close(dir);
if (tinydir_open(dir, path) == -1)
{
return -1;
}
dir->n_files = 0;
dir->_files = (tinydir_file *)_TINYDIR_MALLOC(sizeof *dir->_files * n_files);
if (dir->_files == NULL)
{
goto bail;
}
while (dir->has_next)
{
tinydir_file *p_file;
dir->n_files++;
p_file = &dir->_files[dir->n_files - 1];
if (tinydir_readfile(dir, p_file) == -1)
{
goto bail;
}
if (tinydir_next(dir) == -1)
{
goto bail;
}
/* Just in case the number of files has changed between the first and
second reads, terminate without writing into unallocated memory */
if (dir->n_files == n_files)
{
break;
}
}
qsort(dir->_files, dir->n_files, sizeof(tinydir_file), _tinydir_file_cmp);
return 0;
bail:
tinydir_close(dir);
return -1;
}
_TINYDIR_FUNC
void tinydir_close(tinydir_dir *dir)
{
if (dir == NULL)
{
return;
}
memset(dir->path, 0, sizeof(dir->path));
dir->has_next = 0;
dir->n_files = 0;
_TINYDIR_FREE(dir->_files);
dir->_files = NULL;
#ifdef _MSC_VER
if (dir->_h != INVALID_HANDLE_VALUE)
{
FindClose(dir->_h);
}
dir->_h = INVALID_HANDLE_VALUE;
#else
if (dir->_d)
{
_tinydir_closedir(dir->_d);
}
dir->_d = NULL;
dir->_e = NULL;
#ifndef _TINYDIR_USE_READDIR
_TINYDIR_FREE(dir->_ep);
dir->_ep = NULL;
#endif
#endif
}
_TINYDIR_FUNC
int tinydir_next(tinydir_dir *dir)
{
if (dir == NULL)
{
errno = EINVAL;
return -1;
}
if (!dir->has_next)
{
errno = ENOENT;
return -1;
}
#ifdef _MSC_VER
if (FindNextFile(dir->_h, &dir->_f) == 0)
#else
#ifdef _TINYDIR_USE_READDIR
dir->_e = _tinydir_readdir(dir->_d);
#else
if (dir->_ep == NULL)
{
return -1;
}
if (readdir_r(dir->_d, dir->_ep, &dir->_e) != 0)
{
return -1;
}
#endif
if (dir->_e == NULL)
#endif
{
dir->has_next = 0;
#ifdef _MSC_VER
if (GetLastError() != ERROR_SUCCESS &&
GetLastError() != ERROR_NO_MORE_FILES)
{
tinydir_close(dir);
errno = EIO;
return -1;
}
#endif
}
return 0;
}
_TINYDIR_FUNC
int tinydir_readfile(const tinydir_dir *dir, tinydir_file *file)
{
if (dir == NULL || file == NULL)
{
errno = EINVAL;
return -1;
}
#ifdef _MSC_VER
if (dir->_h == INVALID_HANDLE_VALUE)
#else
if (dir->_e == NULL)
#endif
{
errno = ENOENT;
return -1;
}
if (_tinydir_strlen(dir->path) +
_tinydir_strlen(
#ifdef _MSC_VER
dir->_f.cFileName
#else
dir->_e->d_name
#endif
) + 1 + _TINYDIR_PATH_EXTRA >=
_TINYDIR_PATH_MAX)
{
/* the path for the file will be too long */
errno = ENAMETOOLONG;
return -1;
}
if (_tinydir_strlen(
#ifdef _MSC_VER
dir->_f.cFileName
#else
dir->_e->d_name
#endif
) >= _TINYDIR_FILENAME_MAX)
{
errno = ENAMETOOLONG;
return -1;
}
_tinydir_strcpy(file->path, dir->path);
_tinydir_strcat(file->path, TINYDIR_STRING("/"));
_tinydir_strcpy(file->name,
#ifdef _MSC_VER
dir->_f.cFileName
#else
dir->_e->d_name
#endif
);
_tinydir_strcat(file->path, file->name);
#ifndef _MSC_VER
#ifdef __MINGW32__
if (_tstat(
#else
if (stat(
#endif
file->path, &file->_s) == -1)
{
return -1;
}
#endif
_tinydir_get_ext(file);
file->is_dir =
#ifdef _MSC_VER
!!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
#else
S_ISDIR(file->_s.st_mode);
#endif
file->is_reg =
#ifdef _MSC_VER
!!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NORMAL) ||
(
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DEVICE) &&
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_ENCRYPTED) &&
#ifdef FILE_ATTRIBUTE_INTEGRITY_STREAM
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_INTEGRITY_STREAM) &&
#endif
#ifdef FILE_ATTRIBUTE_NO_SCRUB_DATA
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_NO_SCRUB_DATA) &&
#endif
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_OFFLINE) &&
!(dir->_f.dwFileAttributes & FILE_ATTRIBUTE_TEMPORARY));
#else
S_ISREG(file->_s.st_mode);
#endif
return 0;
}
_TINYDIR_FUNC
int tinydir_readfile_n(const tinydir_dir *dir, tinydir_file *file, size_t i)
{
if (dir == NULL || file == NULL)
{
errno = EINVAL;
return -1;
}
if (i >= dir->n_files)
{
errno = ENOENT;
return -1;
}
memcpy(file, &dir->_files[i], sizeof(tinydir_file));
_tinydir_get_ext(file);
return 0;
}
_TINYDIR_FUNC
int tinydir_open_subdir_n(tinydir_dir *dir, size_t i)
{
_tinydir_char_t path[_TINYDIR_PATH_MAX];
if (dir == NULL)
{
errno = EINVAL;
return -1;
}
if (i >= dir->n_files || !dir->_files[i].is_dir)
{
errno = ENOENT;
return -1;
}
_tinydir_strcpy(path, dir->_files[i].path);
tinydir_close(dir);
if (tinydir_open_sorted(dir, path) == -1)
{
return -1;
}
return 0;
}
/* Open a single file given its path */
_TINYDIR_FUNC
int tinydir_file_open(tinydir_file *file, const _tinydir_char_t *path)
{
tinydir_dir dir;
int result = 0;
int found = 0;
_tinydir_char_t dir_name_buf[_TINYDIR_PATH_MAX];
_tinydir_char_t file_name_buf[_TINYDIR_FILENAME_MAX];
_tinydir_char_t *dir_name;
_tinydir_char_t *base_name;
#if (defined _MSC_VER || defined __MINGW32__)
_tinydir_char_t drive_buf[_TINYDIR_PATH_MAX];
_tinydir_char_t ext_buf[_TINYDIR_FILENAME_MAX];
#endif
if (file == NULL || path == NULL || _tinydir_strlen(path) == 0)
{
errno = EINVAL;
return -1;
}
if (_tinydir_strlen(path) + _TINYDIR_PATH_EXTRA >= _TINYDIR_PATH_MAX)
{
errno = ENAMETOOLONG;
return -1;
}
/* Get the parent path */
#if (defined _MSC_VER || defined __MINGW32__)
#if ((defined _MSC_VER) && (_MSC_VER >= 1400))
_tsplitpath_s(
path,
drive_buf, _TINYDIR_DRIVE_MAX,
dir_name_buf, _TINYDIR_FILENAME_MAX,
file_name_buf, _TINYDIR_FILENAME_MAX,
ext_buf, _TINYDIR_FILENAME_MAX);
#else
_tsplitpath(
path,
drive_buf,
dir_name_buf,
file_name_buf,
ext_buf);
#endif
/* _splitpath_s not work fine with only filename and widechar support */
#ifdef _UNICODE
if (drive_buf[0] == L'\xFEFE')
drive_buf[0] = '\0';
if (dir_name_buf[0] == L'\xFEFE')
dir_name_buf[0] = '\0';
#endif
if (errno)
{
errno = EINVAL;
return -1;
}
/* Emulate the behavior of dirname by returning "." for dir name if it's
empty */
if (drive_buf[0] == '\0' && dir_name_buf[0] == '\0')
{
_tinydir_strcpy(dir_name_buf, TINYDIR_STRING("."));
}
/* Concatenate the drive letter and dir name to form full dir name */
_tinydir_strcat(drive_buf, dir_name_buf);
dir_name = drive_buf;
/* Concatenate the file name and extension to form base name */
_tinydir_strcat(file_name_buf, ext_buf);
base_name = file_name_buf;
#else
_tinydir_strcpy(dir_name_buf, path);
dir_name = dirname(dir_name_buf);
_tinydir_strcpy(file_name_buf, path);
base_name =basename(file_name_buf);
#endif
/* Open the parent directory */
if (tinydir_open(&dir, dir_name) == -1)
{
return -1;
}
/* Read through the parent directory and look for the file */
while (dir.has_next)
{
if (tinydir_readfile(&dir, file) == -1)
{
result = -1;
goto bail;
}
if (_tinydir_strcmp(file->name, base_name) == 0)
{
/* File found */
found = 1;
break;
}
tinydir_next(&dir);
}
if (!found)
{
result = -1;
errno = ENOENT;
}
bail:
tinydir_close(&dir);
return result;
}
_TINYDIR_FUNC
void _tinydir_get_ext(tinydir_file *file)
{
_tinydir_char_t *period = _tinydir_strrchr(file->name, TINYDIR_STRING('.'));
if (period == NULL)
{
file->extension = &(file->name[_tinydir_strlen(file->name)]);
}
else
{
file->extension = period + 1;
}
}
_TINYDIR_FUNC
int _tinydir_file_cmp(const void *a, const void *b)
{
const tinydir_file *fa = (const tinydir_file *)a;
const tinydir_file *fb = (const tinydir_file *)b;
if (fa->is_dir != fb->is_dir)
{
return -(fa->is_dir - fb->is_dir);
}
return _tinydir_strncmp(fa->name, fb->name, _TINYDIR_FILENAME_MAX);
}
#ifndef _MSC_VER
#ifndef _TINYDIR_USE_READDIR
/*
The following authored by Ben Hutchings <ben@decadent.org.uk>
from https://womble.decadent.org.uk/readdir_r-advisory.html
*/
/* Calculate the required buffer size (in bytes) for directory *
* entries read from the given directory handle. Return -1 if this *
* this cannot be done. *
* *
* This code does not trust values of NAME_MAX that are less than *
* 255, since some systems (including at least HP-UX) incorrectly *
* define it to be a smaller value. */
_TINYDIR_FUNC
size_t _tinydir_dirent_buf_size(_TINYDIR_DIR *dirp)
{
long name_max;
size_t name_end;
/* parameter may be unused */
(void)dirp;
#if defined _TINYDIR_USE_FPATHCONF
name_max = fpathconf(dirfd(dirp), _PC_NAME_MAX);
if (name_max == -1)
#if defined(NAME_MAX)
name_max = (NAME_MAX > 255) ? NAME_MAX : 255;
#else
return (size_t)(-1);
#endif
#elif defined(NAME_MAX)
name_max = (NAME_MAX > 255) ? NAME_MAX : 255;
#else
#error "buffer size for readdir_r cannot be determined"
#endif
name_end = (size_t)offsetof(struct _tinydir_dirent, d_name) + name_max + 1;
return (name_end > sizeof(struct _tinydir_dirent) ?
name_end : sizeof(struct _tinydir_dirent));
}
#endif
#endif
#ifdef __cplusplus
}
#endif
# if defined (_MSC_VER)
# pragma warning(pop)
# endif
#endif