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https://github.com/RIOT-OS/RIOT.git
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62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* Copyright (C) 2022 ML!PA Consulting GmbH
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_suit_transport_vfs
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* @{
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*
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* @fil
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* @brief SUIT VFS
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*
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* @author Benjamin Valentin <benjamin.valentin@ml-pa.com>
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* @}
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*/
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#include <fcntl.h>
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#include <string.h>
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#include "suit/transport/vfs.h"
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#include "log.h"
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#include "vfs.h"
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int suit_transport_vfs_fetch(const suit_manifest_t *manifest, coap_blockwise_cb_t cb, void *ctx)
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{
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const char *file = &manifest->urlbuf[7];
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size_t offset = 0;
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int res, fd;
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LOG_DEBUG("suit_vfs: read firmware from %s\n", file);
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fd = vfs_open(file, O_RDONLY, 0);
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if (fd < 0) {
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return fd;
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}
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void *buf = manifest->urlbuf;
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size_t max_len = manifest->urlbuf_len;
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while ((res = vfs_read(fd, buf, max_len)) > 0) {
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size_t len = res;
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res = cb(ctx, offset, buf, len, 1);
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if (res < 0) {
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LOG_ERROR("suit_vfs: write failed with %d\n", res);
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break;
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}
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offset += len;
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}
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if (res < 0) {
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LOG_ERROR("suit_vfs: read failed with %d\n", res);
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} else {
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res = cb(ctx, offset, buf, 0, 0);
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}
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vfs_close(fd);
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return res;
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}
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