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Applied similar bug fixes to Joliet and ISO 9660:1999

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This commit is contained in:
Thomas Schmitt 2014-04-02 19:40:17 +02:00
parent 185cbd99bf
commit 97ec68530b
5 changed files with 47 additions and 19 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
bzr branch lp:libisofs/for-libisoburn (to become libisofs-1.3.8.tar.gz)
===============================================================================
* Bug fix: Prevent allocation of empty hash tables. Thanks Richard Nolde.
* Bug fix: Prevent allocation of empty directory children lists.
Thanks Richard Nolde.
libisofs-1.3.6.tar.gz Tue Mar 04 2014
===============================================================================
* Bug fix: Division by zero if HFS+ was combined with TOC emulation for

2
libisofs/ecma119_tree.c
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2009 - 2012 Thomas Schmitt
* Copyright (c) 2009 - 2014 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

28
libisofs/iso1999.c
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2011-2012 Thomas Schmitt
* Copyright (c) 2011-2014 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
@ -80,7 +80,8 @@ void iso1999_node_free(Iso1999Node *node)
for (i = 0; i < node->info.dir->nchildren; i++) {
iso1999_node_free(node->info.dir->children[i]);
}
free(node->info.dir->children);
if (node->info.dir->children != NULL)
free(node->info.dir->children);
free(node->info.dir);
}
iso_node_unref(node->node);
@ -111,11 +112,14 @@ int create_node(Ecma119Image *t, IsoNode *iso, Iso1999Node **node)
free(n);
return ISO_OUT_OF_MEM;
}
n->info.dir->children = calloc(sizeof(void*), dir->nchildren);
if (n->info.dir->children == NULL) {
free(n->info.dir);
free(n);
return ISO_OUT_OF_MEM;
n->info.dir->children = NULL;
if (dir->nchildren > 0) {
n->info.dir->children = calloc(sizeof(void*), dir->nchildren);
if (n->info.dir->children == NULL) {
free(n->info.dir);
free(n);
return ISO_OUT_OF_MEM;
}
}
n->type = ISO1999_DIR;
} else if (iso->type == LIBISO_FILE) {
@ -293,6 +297,8 @@ void sort_tree(Iso1999Node *root)
{
size_t i;
if (root->info.dir->children == NULL)
return;
qsort(root->info.dir->children, root->info.dir->nchildren,
sizeof(void*), cmp_node);
for (i = 0; i < root->info.dir->nchildren; i++) {
@ -312,10 +318,14 @@ int mangle_single_dir(Ecma119Image *img, Iso1999Node *dir)
int need_sort = 0;
char *full_name = NULL, *tmp = NULL;
nchildren = dir->info.dir->nchildren;
if (nchildren <= 0) {
ret = ISO_SUCCESS;
goto ex;
}
children = dir->info.dir->children;
LIBISO_ALLOC_MEM(full_name, char, 208);
LIBISO_ALLOC_MEM(tmp, char, 208);
nchildren = dir->info.dir->nchildren;
children = dir->info.dir->children;
/* a hash table will temporary hold the names, for fast searching */
ret = iso_htable_create((nchildren * 100) / 80, iso_str_hash,

28
libisofs/joliet.c
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@ -1,7 +1,7 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2007 Mario Danic
* Copyright (c) 2011-2012 Thomas Schmitt
* Copyright (c) 2011-2014 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
@ -126,7 +126,8 @@ void joliet_node_free(JolietNode *node)
for (i = 0; i < node->info.dir->nchildren; i++) {
joliet_node_free(node->info.dir->children[i]);
}
free(node->info.dir->children);
if (node->info.dir->children != NULL)
free(node->info.dir->children);
free(node->info.dir);
}
iso_node_unref(node->node);
@ -157,11 +158,14 @@ int create_node(Ecma119Image *t, IsoNode *iso, JolietNode **node)
free(joliet);
return ISO_OUT_OF_MEM;
}
joliet->info.dir->children = calloc(sizeof(void*), dir->nchildren);
if (joliet->info.dir->children == NULL) {
free(joliet->info.dir);
free(joliet);
return ISO_OUT_OF_MEM;
joliet->info.dir->children = NULL;
if (dir->nchildren > 0) {
joliet->info.dir->children = calloc(sizeof(void*), dir->nchildren);
if (joliet->info.dir->children == NULL) {
free(joliet->info.dir);
free(joliet);
return ISO_OUT_OF_MEM;
}
}
joliet->type = JOLIET_DIR;
} else if (iso->type == LIBISO_FILE) {
@ -333,6 +337,8 @@ void sort_tree(JolietNode *root)
{
size_t i;
if (root->info.dir->children == NULL)
return;
qsort(root->info.dir->children, root->info.dir->nchildren,
sizeof(void*), cmp_node);
for (i = 0; i < root->info.dir->nchildren; i++) {
@ -406,10 +412,14 @@ int mangle_single_dir(Ecma119Image *t, JolietNode *dir)
uint16_t *full_name = NULL;
uint16_t *tmp = NULL;
nchildren = dir->info.dir->nchildren;
if (nchildren <= 0) {
ret = ISO_SUCCESS;
goto ex;
}
children = dir->info.dir->children;
LIBISO_ALLOC_MEM(full_name, uint16_t, LIBISO_JOLIET_NAME_MAX);
LIBISO_ALLOC_MEM(tmp, uint16_t, LIBISO_JOLIET_NAME_MAX);
nchildren = dir->info.dir->nchildren;
children = dir->info.dir->children;
if (t->opts->joliet_long_names)
maxchar = 103;

1
libisofs/util_htable.c
View File

@ -1,5 +1,6 @@
/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2014 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