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Avoiding to equip old session nodes with 0-MD5 if the checksum array

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was not loaded during own checksum mismatch.
This commit is contained in:
Thomas Schmitt
2009-08-13 23:34:55 +02:00
parent 74198afa04
commit ba66a7896a
2 changed files with 16 additions and 9 deletions
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10
libisofs/ecma119.c
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@ -906,6 +906,9 @@ int checksum_prepare_nodes(Ecma119Image *target, IsoNode *node, int flag)
unsigned int idx = 0;
char *value;
void *xipt = NULL;
static char *cx_names = "isofs.cx";
static size_t cx_value_lengths[1] = {0};
char *cx_valuept = "";
img= target->image;
@ -917,7 +920,12 @@ int checksum_prepare_nodes(Ecma119Image *target, IsoNode *node, int flag)
value= NULL;
ret = iso_node_lookup_attr(node, "isofs.cx", &value_length,
&value, 0);
if (ret == 1 && value_length == 4) {
if (ret == 1 && img->checksum_array == NULL) {
/* No checksum array loaded. Delete "isofs.cx" */
iso_node_set_attrs(node, (size_t) 1,
&cx_names, cx_value_lengths, &cx_valuept, 4 | 8);
no_md5 = 1;
} else if (ret == 1 && value_length == 4) {
for (i = 0; i < 4; i++)
idx = (idx << 8) | ((unsigned char *) value)[i];
if (idx > 0 && idx < 0x8000000) {