[C]

1. CGI_BYTECOUNT
2. CGI_LD_LIBRARY_PATH
3. CGI_LIMIT
4. CGI_NICE
5. CGI_PATH
6. CGI_PATTERN
7. CGI_TIMELIMIT
8. CGI_WRAP
9. CHECK_FD
10. CHST_BOGUS
11. CHST_CR
12. CHST_CRLF
13. CHST_CRLFCR
14. CHST_FIRSTWORD
15. CHST_FIRSTWS
16. CHST_LF
17. CHST_LINE
18. CHST_SECONDWORD
19. CHST_SECONDWS
20. CHST_THIRDWORD
21. CHST_THIRDWS
22. CNST_FREE
23. CNST_LINGERING
24. CNST_PAUSING
25. CNST_READING
26. CNST_RESTARTING
27. CNST_SENDING
28. CR
29. ClientData