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a29f44cc07
Failures to apply program or patch operations are silently ignored, forcing the user to inspect the logs to conclude if the flashing succeded. Instead make the operations halt execution. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
#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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static struct patch *patches;
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static struct patch *patches_last;
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static unsigned attr_as_unsigned(xmlNode *node, const char *attr, int *errors)
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{
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xmlChar *value;
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value = xmlGetProp(node, (xmlChar*)attr);
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if (!value)
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(*errors)++;
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return strtoul((char*)value, NULL, 10);
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}
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static const char *attr_as_string(xmlNode *node, const char *attr, int *errors)
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{
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xmlChar *value;
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value = xmlGetProp(node, (xmlChar*)attr);
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if (!value)
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(*errors)++;
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return strdup((char*)value);
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}
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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(int fd, int (*apply)(int fd, 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(fd, 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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