HTTP_READ_STATUS HTTPReadPostName( BYTE* cData, WORD wLen );
Reads a name from a URL encoded string in the TCP buffer. This function is meant to be called from an HTTPExecutePost callback to facilitate easier parsing of incoming data. This function also prevents buffer overflows by forcing the programmer to indicate how many bytes are expected. At least 2 extra bytes are needed in cData over the maximum length of data expected to be read.
This function will read until the next '=' character, which indicates the end of a name parameter. It assumes that the front of the buffer is the beginning of the name paramter to be read.
This function properly updates curHTTP.byteCount by decrementing it by the number of bytes read. It also removes the delimiting '=' from the buffer.
Front of TCP buffer is the beginning of a name parameter, and the rest of the TCP buffer contains a URL-encoded string with a name parameter terminated by a '=' character.
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Parameters |
Description |
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cData |
where to store the name once it is read |
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wLen |
how many bytes can be written to cData |
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Return Values |
Description |
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HTTP_READ_OK |
name was successfully read |
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HTTP_READ_TRUNCTATED |
entire name could not fit in the buffer, so the value was truncated and data has been lost |
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HTTP_READ_INCOMPLETE |
entire name was not yet in the buffer, so call this function again later to retrieve |