mirror of
https://github.com/linux-msm/qdl.git
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13681fcb35
Assumed to be a remnant of early development lead to a recent transition
of "start_sector" from being represented as a string to an integer. But
it turns out that "start_sector" might be an expression, e.g. to write
something at the end of the disk.
So transition back to carry "start_sector" as a string.
Fixes: b6e0ea31d7 ("program: Make start_sector unsigned in")
Reported-by: Julien Robin
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*
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* Copyright (c) 2016-2017, Linaro Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, 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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*
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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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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* 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)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <string.h>
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#include <libxml/parser.h>
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#include <libxml/tree.h>
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#include "patch.h"
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#include "qdl.h"
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static struct patch *patches;
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static struct patch *patches_last;
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int patch_load(const char *patch_file)
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{
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struct patch *patch;
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xmlNode *node;
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xmlNode *root;
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xmlDoc *doc;
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int errors;
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doc = xmlReadFile(patch_file, NULL, 0);
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if (!doc) {
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fprintf(stderr, "[PATCH] failed to parse %s\n", patch_file);
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return -EINVAL;
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}
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root = xmlDocGetRootElement(doc);
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for (node = root->children; node ; node = node->next) {
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if (node->type != XML_ELEMENT_NODE)
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continue;
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if (xmlStrcmp(node->name, (xmlChar*)"patch")) {
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fprintf(stderr, "[PATCH] unrecognized tag \"%s\", ignoring\n", node->name);
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continue;
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}
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errors = 0;
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patch = calloc(1, sizeof(struct patch));
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patch->sector_size = attr_as_unsigned(node, "SECTOR_SIZE_IN_BYTES", &errors);
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patch->byte_offset = attr_as_unsigned(node, "byte_offset", &errors);
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patch->filename = attr_as_string(node, "filename", &errors);
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patch->partition = attr_as_unsigned(node, "physical_partition_number", &errors);
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patch->size_in_bytes = attr_as_unsigned(node, "size_in_bytes", &errors);
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patch->start_sector = attr_as_string(node, "start_sector", &errors);
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patch->value = attr_as_string(node, "value", &errors);
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patch->what = attr_as_string(node, "what", &errors);
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if (errors) {
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fprintf(stderr, "[PATCH] errors while parsing patch\n");
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free(patch);
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continue;
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}
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if (patches) {
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patches_last->next = patch;
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patches_last = patch;
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} else {
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patches = patch;
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patches_last = patch;
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}
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}
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xmlFreeDoc(doc);
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return 0;
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}
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int patch_execute(struct qdl_device *qdl, int (*apply)(struct qdl_device *qdl, struct patch *patch))
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{
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struct patch *patch;
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int ret;
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for (patch = patches; patch; patch = patch->next) {
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if (strcmp(patch->filename, "DISK"))
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continue;
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ret = apply(qdl, patch);
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if (ret)
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return ret;
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}
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return 0;
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}
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