Throw if open file with EXV_ENABLE_FILESYSTEM off (backport #3020) #3021
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If ImageFactory::createIo() is called with a file path and has been built with EXV_ENABLE_FILESYSTEM off it returns a NULL pointer. ImageFactory::open() then calls io->open() on this pointer, causing a segfault. The documentation of ImageFactory::createIo does not say it can return a NULL pointer. This commit makes it throw an exception instead of returning a NULL pointer. (cherry picked from commit b0f1c48)
This can be thrown anywhere a file operation is not permitted because exiv2 has been build with EXV_ENABLE_FILESYSTEM off. (cherry picked from commit 5fb8c65)
kmilos
approved these changes
Aug 5, 2024
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If ImageFactory::createIo() is called with a file path and has been built with EXV_ENABLE_FILESYSTEM off it returns a NULL pointer. ImageFactory::open() then calls io->open() on this pointer, causing a segfault. The documentation of ImageFactory::createIo does not say it can return a NULL pointer. This commit makes it throw an exception instead of returning a NULL pointer.
This is an automatic backport of pull request #3020 done by Mergify.