be7e51a083
Addresses: https://github.com/NixOS/nixpkgs/issues/73624 https://github.com/NixOS/nixpkgs/issues/70086
72 lines
2.3 KiB
Diff
72 lines
2.3 KiB
Diff
commit 970fb11a296b5bbdc5e8425851253d2c5913c45e
|
|
Author: Leon Bottou <leon@bottou.org>
|
|
Date: Tue Mar 26 20:36:31 2019 -0400
|
|
|
|
Fix bug#296
|
|
|
|
diff --git a/libdjvu/DjVmDir.cpp b/libdjvu/DjVmDir.cpp
|
|
index a6a39e0..0a0fac6 100644
|
|
--- a/libdjvu/DjVmDir.cpp
|
|
+++ b/libdjvu/DjVmDir.cpp
|
|
@@ -299,42 +299,44 @@ DjVmDir::decode(const GP<ByteStream> &gstr)
|
|
memcpy((char*) strings+strings_size, buffer, length);
|
|
}
|
|
DEBUG_MSG("size of decompressed names block=" << strings.size() << "\n");
|
|
- if (strings[strings.size()-1] != 0)
|
|
- {
|
|
- int strings_size=strings.size();
|
|
- strings.resize(strings_size+1);
|
|
- strings[strings_size] = 0;
|
|
- }
|
|
+ int strings_size=strings.size();
|
|
+ strings.resize(strings_size+3);
|
|
+ memset((char*) strings+strings_size, 0, 4);
|
|
|
|
- // Copy names into the files
|
|
+ // Copy names into the files
|
|
const char * ptr=strings;
|
|
for(pos=files_list;pos;++pos)
|
|
{
|
|
GP<File> file=files_list[pos];
|
|
-
|
|
+ if (ptr >= (const char*)strings + strings_size)
|
|
+ G_THROW( "DjVu document is corrupted (DjVmDir)" );
|
|
file->id=ptr;
|
|
ptr+=file->id.length()+1;
|
|
if (file->flags & File::HAS_NAME)
|
|
{
|
|
- file->name=ptr;
|
|
- ptr+=file->name.length()+1;
|
|
- } else
|
|
+ file->name=ptr;
|
|
+ ptr+=file->name.length()+1;
|
|
+ }
|
|
+ else
|
|
{
|
|
file->name=file->id;
|
|
}
|
|
if (file->flags & File::HAS_TITLE)
|
|
{
|
|
- file->title=ptr;
|
|
- ptr+=file->title.length()+1;
|
|
- } else
|
|
- file->title=file->id;
|
|
- /* msr debug: multipage file, file->title is null.
|
|
+ file->title=ptr;
|
|
+ ptr+=file->title.length()+1;
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ file->title=file->id;
|
|
+ }
|
|
+ /* msr debug: multipage file, file->title is null.
|
|
DEBUG_MSG(file->name << ", " << file->id << ", " << file->title << ", " <<
|
|
file->offset << ", " << file->size << ", " <<
|
|
file->is_page() << "\n"); */
|
|
}
|
|
|
|
- // Check that there is only one file with SHARED_ANNO flag on
|
|
+ // Check that there is only one file with SHARED_ANNO flag on
|
|
int shared_anno_cnt=0;
|
|
for(pos=files_list;pos;++pos)
|
|
{
|