Lies dich hier mal ein (erstmal ohne die Abschnitte EBCDIC / BINARY und MIXED).

You can use the QtmhCvtDb API to parse the information into a structure.
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When the method is post, the system reads the data from standard input. Before the CGI attempts to read standard input, it must check environment variables REQUEST_METHOD and CONTENT_LENGTH. Read standard input only when the REQUEST_METHOD is POST. The read must specify no more than CONTENT_LENGTH bytes. Attempts to specify more than CONTENT_LENGTH bytes on reading standard input are not defined.