mirror of https://github.com/storytold/pdfcraft.git synced 2026-10-25 02:29:31 -06:00

Files

T

aiongg fc1372a64c fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

hayro-cmap reads CMap streams with hayro-postscript's token scanner,
whose object::read skipped each `<<` and `>>` by calling itself again.
A CMap holding a long run of `<` or `>` used one stack frame per pair,
overflowed the stack and aborted the process.

Vendor hayro-postscript 0.1.0 with read() looping over the delimiters
instead (from storytold/craft-libs#263), patched in beside hayro-cmap.
Four object::tests cover long `<<` and `>>` runs and the skipped
delimiters, plain and nested.

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examples

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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src

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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Cargo.lock

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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Cargo.toml

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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Cargo.toml.orig

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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LICENSE-APACHE

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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LICENSE-MIT

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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README.md

fix(render): vendor hayro-postscript so a run of << in a CMap can't overflow the stack (#4363 )

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README.md

hayro-postscript

A lightweight PostScript scanner.

This crate provides a scanner for tokenizing PostScript programs into typed objects. It currently only implements a very small subset of the PostScript language, with the main goal of being enough to parse CMAP files, but the scope might be expanded upon in the future.

The supported types include integers and real numbers, name objects, strings and arrays. Unsupported is anything else, including dictionaries, procedures, etc. An error will be returned in case any of these is encountered.

Safety

This crate forbids unsafe code via a crate-level attribute.

License

Licensed under either of

Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.