thodg/libgit2/src

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  • Hash : c05790a8
    Author : Patrick Steinhardt
    Date : 2018-08-09T11:16:15

    smart_pkt: return parsed length via out-parameter The `parse_len` function currently directly returns the parsed length of a packet line or an error code in case there was an error. Instead, convert this to our usual style of using the return value as error code only and returning the actual value via an out-parameter. Thus, we can now convert the output parameter to an unsigned type, as the size of a packet cannot ever be negative. While at it, we also move the check whether the input buffer is long enough into `parse_len` itself. We don't really want to pass around potentially non-NUL-terminated buffers to functions without also passing along the length, as this is dangerous in the unlikely case where other callers for that function get added. Note that we need to make sure though to not mess with `GIT_EBUFS` error codes, as these indicate not an error to the caller but that he needs to fetch more data.

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