Re: Re: about option_t

["cyx_mail@foxmail.com" <cyx_mail@foxmail.com>]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="windows-1254", Size: 1536 bytes --]

thanks for you help!


2008-05-05 






·¢¼þÈË£º James Carlson 
·¢ËÍʱ¼ä£º 2008-05-05  19:41:21 
ÊÕ¼þÈË£º cyx_mail@foxmail.com 
³­ËÍ£º linux-ppp 
Ö÷Ì⣺ Re: about option_t 
 
cyx_mail@foxmail.com writes:
> Which piece of code call the void *addr.
'addr' is a type-dependent value.  It's not necessarily called as a
function -- that only happens if the type is o_special,
o_special_noarg, or o_wild.
> some plugins uses this pointer to call functions when the plugin loads. BTW, what is the exactly meaning of each value of enum opt_type struct? Thanks a lot!
The values should be relatively self-explanatory, if you read the code
in options.c or examine any of the code that uses the options.
  o_special_noarg - option is processed by a function call and
  consumes no other arguments.
  o_special - option processed by function call and consumes one more
  argument.
  o_bool - option address is a 'bool' to be set to the lower 8 bits of
  'flags'.  If 'addr2' is set, use the OPT_A2{COPY,CLR,CLRB,OR) to
  determine what is done to that value.
  o_int - parse an integer, offset by low 8 bits of 'flags', and store
  in 'addr'.
  o_wild - special self-identifying option (no keyword; parsed by
  appearance).  Used only for IPv4 addresses, device name, and tty
  speed.
-- 
__________ NOD32 3072 (20080503) Information __________
This message was checked by NOD32 antivirus system.
http://www.nod32cn.com
ÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éݶ\x17¥Šwÿº{.nÇ+‰·¥Š{±þšiþ)í…æèw*\x1fjg¬±¨\x1e¶‰šŽŠÝ¢jÿ¾\a«þG«éÿ¢¸\f¢·¦j:+v‰¨ŠwèjØm¶Ÿÿþø\x1e¯ù\x1e®w¥þŠàþf£¢·hšâúÿ†Ù¥