mirror of
https://github.com/lwip-tcpip/lwip.git
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109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Dirk Ziegelmeier <dziegel@gmx.de>
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*
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*/
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#include <stdio.h>
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#include "lwip/apps/tftp_server.h"
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#include "tftp_example.h"
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#include <string.h>
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#if LWIP_UDP
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static void*
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tftp_open(const char* fname, const char* mode, u8_t is_write)
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{
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LWIP_UNUSED_ARG(mode);
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if (is_write) {
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return (void*)fopen(fname, "wb");
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} else {
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return (void*)fopen(fname, "rb");
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}
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}
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static void
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tftp_close(void* handle)
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{
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fclose((FILE*)handle);
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}
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static int
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tftp_read(void* handle, void* buf, int bytes)
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{
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int ret = fread(buf, 1, bytes, (FILE*)handle);
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if (ret <= 0) {
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return -1;
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}
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return ret;
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}
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static int
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tftp_write(void* handle, struct pbuf* p)
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{
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while (p != NULL) {
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if (fwrite(p->payload, 1, p->len, (FILE*)handle) != (size_t)p->len) {
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return -1;
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}
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p = p->next;
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}
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return 0;
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}
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/* For TFTP client only */
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static void
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tftp_error(void* handle, int err, const char* msg, int size)
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{
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char message[100];
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LWIP_UNUSED_ARG(handle);
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memset(message, 0, sizeof(message));
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MEMCPY(message, msg, LWIP_MIN(sizeof(message)-1, (size_t)size));
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printf("TFTP error: %d (%s)", err, message);
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}
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static const struct tftp_context tftp = {
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tftp_open,
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tftp_close,
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tftp_read,
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tftp_write,
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tftp_error
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};
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void
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tftp_example_init(void)
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{
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tftp_init_server(&tftp);
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}
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#endif /* LWIP_UDP */
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