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https://issues.apache.org/jira/browse/AXIS2C-818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bill Mitchell resolved AXIS2C-818.
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Resolution: Fixed
Fix Version/s: Current (Nightly)
This fix has been applied as svn revision 617570.
> If the returned message read fills the buffer, http_transport_utils.c
> clobbers the byte past the end of the buffer
> ------------------------------------------------------------------------------------------------------------------
>
> Key: AXIS2C-818
> URL: https://issues.apache.org/jira/browse/AXIS2C-818
> Project: Axis2-C
> Issue Type: Bug
> Components: transport/http
> Affects Versions: 1.1.0
> Environment: Windows, Visual Studio 2005, debug build, libcurl
> enabled, guththila parser enabled
> Reporter: Bill Mitchell
> Fix For: Current (Nightly)
>
> Attachments: http_transport_utils_diff
>
>
> If the returned message from libcurl exceeds 4096 characters, the size of a
> guththila buffer, http_transport_utils clobbers the byte following the end of
> the buffer. When running the Windows version in debug mode, this is nicely
> diagnosed by the C runtime as a heap corruption failure.
> The problem lies in axis2_http_transport_utils_on_data_request() where it
> always stores a zero byte past the end of the data read, even if the data
> read fully fills the size of the provided buffer. As I don't know the intent
> of storing the zero byte, It's not clear to me which of 3 remedies is best:
> (1) don't ever store the zero byte, it's past the end of the bytes read
> (2) store the zero byte only if fewer characters were read than the size of
> the buffer
> (3) always read one byte less than the size of the buffer, thus guaranteeing
> space for a terminating null byte
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