IP control - NSIS Forums

Yurik
19th July 2006 11:17 UTC

IP control
Does anybody have handy IP control which allows to input only valid IP thus making unnecessary complicated checking?

Yurik
24th July 2006 17:16 UTC

It's a pity that nobody answered. Here is my solution which is just silly checking of a string entered in text box:


Var IpToCheck
Var IpSectionsCount ; every IP consists of 4 sections
Function CheckIsIpValid
  Pop $IpToCheck ; trimmed ip

  StrCpy $IpSectionsCount 0
  ${Do}
    Push "." ; divider char
    Push $IpToCheck

    Call SplitFirstStrPart
    Pop $1 ; first IP number
    Pop $IpToCheck ; the rest of IP string

    Push $1 ; verify if numeric
    Call IsNumeric
    Pop $0

    ${if} $0 == 0
      goto invalid_ip
    ${else}
      ${if} $1 < 0
        goto invalid_ip
      ${endif}
      ${if} $1 > 255 
        goto invalid_ip
      ${endif}
    ${endif}
    IntOp $IpSectionsCount $IpSectionsCount + 1
  ${LoopUntil} $IpToCheck == ""

  ${if} $IpSectionsCount == 4
    Push 1 ; OK, valid IP
  ${else}
    goto invalid_ip
  ${endif}
  Return

invalid_ip:
  Push 0 ; Invalid IP
FunctionEnd

The code does not verify a lot of things like that first section is not 0 but suits for most of situations.
SplitFirstStrPart -
http://nsis.sourceforge.net/Get_firs...rest_of_string
IsNumeric - http://forums.winamp.com/showthread....ring+is+number

Comperio
25th July 2006 02:13 UTC

InstallOptionsEX has custom page function for IP addresses. It may work for what you need.

Also, Check IP might be an alternative way to check an IP address.

Yurik
25th July 2006 08:29 UTC

I've tried CheckIP but it is a bit obscure. It seems that is really checks ip (not just ip number correctness) which is sometimes not needed in an installer.
I will try to see InstallOptionsEx, thanks!

JoeMcC00L
26th July 2006 23:40 UTC

http://forums.winamp.com/showthread....hreadid=252007

Heh, I thought I was the only one looking for this. I haven't found a workable solution yet. For some reason, InstallOptionsEx has some trouble displaying my InstallOptions pages. (And it doesn't help that the project is abandoned :().

Anyway, I know I posted a bit later than you but I figured the screenshot in mine might help.

Joe

deguix
29th July 2006 01:40 UTC

Well... I recommend using the function to verify the IP. The control is buggy, just like everything else in the plug-in.