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Bug fix: Prevent allocation of empty hash tables. Thanks Richard Nolde.

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This commit is contained in:
Thomas Schmitt 2014-04-02 18:40:03 +02:00
parent 03b45c3151
commit 0e00aeb638
2 changed files with 7 additions and 3 deletions
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3
libisofs/ecma119_tree.c
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@ -592,6 +592,9 @@ int mangle_single_dir(Ecma119Image *img, Ecma119Node *dir, int max_file_len,
nchildren = dir->info.dir->nchildren; nchildren = dir->info.dir->nchildren;
children = dir->info.dir->children; children = dir->info.dir->children;
if (nchildren <= 0)
return ISO_SUCCESS; /* nothing to do */
/* a hash table will temporary hold the names, for fast searching */ /* a hash table will temporary hold the names, for fast searching */
ret = iso_htable_create((nchildren * 100) / 80, iso_str_hash, ret = iso_htable_create((nchildren * 100) / 80, iso_str_hash,
(compare_function_t)strcmp, &table); (compare_function_t)strcmp, &table);

7
libisofs/util_htable.c
View File

@ -322,9 +322,10 @@ int iso_htable_create(size_t size, hash_funtion_t hash,
{ {
IsoHTable *t; IsoHTable *t;
if (table == NULL) { if (size <= 0)
return ISO_OUT_OF_MEM; return ISO_WRONG_ARG_VALUE;
} if (table == NULL)
return ISO_NULL_POINTER;
t = malloc(sizeof(IsoHTable)); t = malloc(sizeof(IsoHTable));
if (t == NULL) { if (t == NULL) {