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Bug fix: Image size prediction altered the pointers to MD5 of data files 

which stem from a previous session.
This commit is contained in:
Thomas Schmitt 2013-01-14 18:13:49 +01:00
parent 05e7f84966
commit 6905ab3e56
3 changed files with 25 additions and 16 deletions
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6
libisofs/ecma119.c
View File

@ -1,7 +1,7 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2007 Mario Danic
* Copyright (c) 2009 - 2012 Thomas Schmitt
* Copyright (c) 2009 - 2013 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
@ -1613,6 +1613,7 @@ int checksum_prepare_nodes(Ecma119Image *target, IsoNode *node, int flag)
*/;
} else if (ret == 1 && img->checksum_array == NULL) {
/* No checksum array loaded. Delete "isofs.cx" */
if (!target->will_cancel)
iso_node_set_attrs(node, (size_t) 1,
&cx_names, cx_value_lengths, &cx_valuept, 4 | 8);
no_md5 = 1;
@ -1639,8 +1640,9 @@ int checksum_prepare_nodes(Ecma119Image *target, IsoNode *node, int flag)
}
/* Equip nodes with provisory isofs.cx numbers: 4 byte, all 0.
Omit those from old image which will not be copied and have no MD5.
Do not alter the nodes if this is only a will_cancel run.
*/
if (!no_md5) {
if (!(target->will_cancel || no_md5)) {
ret = iso_file_set_isofscx(file, (unsigned int) 0, 0);
if (ret < 0)
return ret;

4
libisofs/filesrc.c
View File

@ -127,7 +127,7 @@ int iso_file_src_create(Ecma119Image *img, IsoFile *file, IsoFileSrc **src)
/* insert the filesrc in the tree */
ret = iso_rbtree_insert(img->files, fsrc, (void**)src);
if (ret <= 0) {
if (ret == 0 && (*src)->checksum_index > 0) {
if (ret == 0 && (*src)->checksum_index > 0 && !img->will_cancel) {
/* Duplicate file source was mapped to previously registered source
*/
cret = iso_file_set_isofscx(file, (*src)->checksum_index, 0);
@ -152,7 +152,7 @@ int iso_file_src_create(Ecma119Image *img, IsoFile *file, IsoFileSrc **src)
no_md5 = 1;
}
if ((img->md5_file_checksums & 1) && !no_md5) {
if ((img->md5_file_checksums & 1) && !(no_md5 || img->will_cancel)) {
img->checksum_idx_counter++;
if (img->checksum_idx_counter < 0x7fffffff) {
fsrc->checksum_index = img->checksum_idx_counter;

9
libisofs/md5.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2009 Thomas Schmitt
* Copyright (c) 2009 - 2013 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
@ -527,6 +527,7 @@ int checksum_copy_old_nodes(Ecma119Image *target, IsoNode *node, int flag)
if (md5_pt == NULL)
return 0;
if (!target->will_cancel) {
ret = iso_node_lookup_attr(node, "isofs.cx", &value_length,
&value, 0);
if (ret == 1 && value_length == 4) {
@ -538,7 +539,13 @@ int checksum_copy_old_nodes(Ecma119Image *target, IsoNode *node, int flag)
}
if (value != NULL)
free(value);
/* ts B30114 : It is unclear why these are removed here.
At least with the opts->will_cancel runs,
this is not appropriate.
*/
iso_node_remove_xinfo(node, checksum_md5_xinfo_func);
}
iso_node_remove_xinfo(node, checksum_cx_xinfo_func);
}
} else if (node->type == LIBISO_DIR) {