lwip/contrib/examples/tftp/tftp_example.c
Dirk Ziegelmeier ac46e42aa2 Import lwIP contrib rep
... from http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git/ into contrib/ subdir, STABLE-2_1_0_RELEASE tag
lwIP contrib is now officially frozen
TODO: Fix build
2018-10-02 12:19:13 +02:00

92 lines
2.4 KiB
C

/*
* 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: Dirk Ziegelmeier <dziegel@gmx.de>
*
*/
#include <stdio.h>
#include "lwip/apps/tftp_server.h"
#include "tftp_example.h"
#if LWIP_UDP
static void*
tftp_open(const char* fname, const char* mode, u8_t is_write)
{
LWIP_UNUSED_ARG(mode);
if (is_write) {
return (void*)fopen(fname, "wb");
} else {
return (void*)fopen(fname, "rb");
}
}
static void
tftp_close(void* handle)
{
fclose((FILE*)handle);
}
static int
tftp_read(void* handle, void* buf, int bytes)
{
int ret = fread(buf, 1, bytes, (FILE*)handle);
if (ret <= 0) {
return -1;
}
return ret;
}
static int
tftp_write(void* handle, struct pbuf* p)
{
while (p != NULL) {
if (fwrite(p->payload, 1, p->len, (FILE*)handle) != (size_t)p->len) {
return -1;
}
p = p->next;
}
return 0;
}
static const struct tftp_context tftp = {
tftp_open,
tftp_close,
tftp_read,
tftp_write
};
void
tftp_example_init(void)
{
tftp_init(&tftp);
}
#endif /* LWIP_UDP */