This function installs a CGI function on HTTP errors. The CGI function must be implemented in the same way than a CGI function, installed with CGI_Install(). For deleting an entry, install a null pointer.
|error_state||HTTP error state: |
07: 401 Unauthorized
08: 404 not found
10: 500 Server error (File system error)
22: 503 Service not available (Out of memory)
|CgiFuncOnErr||Pointer to CGI handler function|
- Do not install a CGI function for HTTP state 401 (authentication required), which does a redirect to another file. This blocks the input of the username and password by a browser.
- At the RTOS-LNX, CGI functions on HTTP errors can be installed by only one process. With other words, it is not allowed that one process installs a CGI function for error 401 and another process installs a CGI function for error 404. All error callbacks need to be located in one process.
- zero on success, -1 on failure.
- See also