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36 lines
1.0 KiB
36 lines
1.0 KiB
diff --git a/libdjvu/DjVuPort.cpp b/libdjvu/DjVuPort.cpp |
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index 2b3e0d2..ede7f6b 100644 |
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--- a/libdjvu/DjVuPort.cpp |
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+++ b/libdjvu/DjVuPort.cpp |
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@@ -507,10 +507,19 @@ GP<DjVuFile> |
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DjVuPortcaster::id_to_file(const DjVuPort * source, const GUTF8String &id) |
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{ |
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GPList<DjVuPort> list; |
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+ |
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+ if (!!opening_id && opening_id == id) |
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+ G_THROW("DjVuPortcaster: recursive opening of the same file (corrupted file?)"); |
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+ else |
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+ opening_id = id; |
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+ |
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compute_closure(source, list, true); |
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GP<DjVuFile> file; |
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for(GPosition pos=list;pos;++pos) |
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if ((file=list[pos]->id_to_file(source, id))) break; |
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+ |
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+ opening_id = GUTF8String(); |
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+ |
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return file; |
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} |
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diff --git a/libdjvu/DjVuPort.h b/libdjvu/DjVuPort.h |
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index e2b3125..313dc2b 100644 |
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--- a/libdjvu/DjVuPort.h |
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+++ b/libdjvu/DjVuPort.h |
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@@ -484,6 +484,7 @@ private: |
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const DjVuPort *dst, int distance); |
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void compute_closure(const DjVuPort *src, GPList<DjVuPort> &list, |
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bool sorted=false); |
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+ GUTF8String opening_id; |
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}; |
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