recvmsg: Check if CMSG buffer was too small and return an error #2413
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agrover
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SteveLauC
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May 22, 2024
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Proposed fix accepted and squashed. Took a swag at updating docstring to mention the new error condition. |
If MSG_CTRUNC is set, it is not safe to iterate the cmsgs, since they could have been truncated. Change RecvMsg::cmsgs() to return a Result, and to check for this flag (an API change). Update tests for API change. Add test for too-small buffer.
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If MSG_CTRUNC is set, it is not safe to iterate the cmsgs, since they could have been truncated. Change
RecvMsg::cmsgs()to return aResult, and to check for this flag (an API change).Update tests for API change. Add test for too-small buffer.
fixes #2400
Checklist:
CONTRIBUTING.md