TCP/IP management APIs (2)
**
** Description : Print TCP/IP interface status
**
** Program summary
** ---------------
**
** Object - User space APIs:
** QUSCRTUS Create user space Creates a user space in either
** user domain or system domain.
** Only user domain user spaces are
** accessible by the user space APIs.
**
** QUSDLTUS Delete user space Deletes the user space specified.
**
** QUSPTRUS Retrieve pointer to The address of the first byte
** user space of the storage allocated by the
** user space requested is returned.
**
**
** Communication - TCP/IP management APIs:
** QtocRtvTCPA Retrieve TCP/IP Retrieves TCP/IPv4 and TCP/IPv6
** attributes (V5R2) stack attributes.
**
** QtocLstNetIfc List network Returns a detailed list of all
** interfaces logical TCP/IP interfaces.
**
**
**
** Sequence of events:
** 1. The current operational status of the TCP/IP stack is retrieved
** to ensure that TCP/IP connection information is available.
**
** 2. A user space is created and a list of the logical TCP/IP network
** interfaces is loaded to the user space.
**
** 3. For each TCP/IP network interface retrieved from user space a
** report line is printed.
**
** 4. Finally the user space is deleted and the program is terminated.
**
**
** Programmer's notes:
** Earliest release program will run: V5R1
**
** The examples here are all retrieving information about TCP/IPv4
** stacks and connections. As of V5R2 new API formats are available
** for retrieval of similar TCP/IPv6 stack and interface information.
**
**
** Compile options:
**
** CrtRpgMod Module( CBX1061 ) DbgView( *LIST )
**
** CrtPgm Pgm( CBX1061 )
** Module( CBX1061 )
**
**-- Header specifications: --------------------------------------------**
H Option( *SrcStmt )
**-- Printer file: -----------------------------------------------------**
FQSYSPRT O F 132 Printer InfDs( PrtLinInf ) OflInd( *InOf )
**-- Printer file information: -----------------------------------------**
D PrtLinInf Ds
D PlOvfLin 5i 0 Overlay( PrtLinInf: 188 )
D PlCurLin 5i 0 Overlay( PrtLinInf: 367 )
D PlCurPag 5i 0 Overlay( PrtLinInf: 369 )
**-- System information: -----------------------------------------------**
D SDs
D PsPgmNam *Proc
**-- Global declarations: ----------------------------------------------**
D Lix s 10u 0
D PxUsrSpc c 'LSTNETIFC QTEMP'
**
D Time s 6s 0
D NbrRcds s 10u 0
D TcpIfcSts s 9a
D IfcLinTyp s 7a
**-- Interface status table: -------------------------------------------**
D StsTbl Ds
D IfcSts 9a Dim( 9 )
D 81a Overlay( StsTbl )
D Inz( 'Inactive Active Starting +
D Ending RCYPND RCYCNL +
D Failed Failed-T DOD ' )
**-- Interface line type table: ----------------------------------------**
D TypTbl Ds
D LinTyp 7a Dim( 15 )
D 105a Overlay( TypTbl )
D Inz( 'NOTFND ERROR NONE OTHER +
D n/a ELAN TRLAN FR +
D ASYNC PPP WLS X.25 +
D DDI TDLC L2TP ' )
**-- Api error data structure: -----------------------------------------**
D ApiError Ds
D AeBytPro 10i 0 Inz( %Size( ApiError ))
D AeBytAvl 10i 0 Inz
D AeMsgId 7a
D 1a
D AeMsgDta 128a
**-- API Header information: -------------------------------------------**
D HdrInf Ds Based( pHdrInf )
D HiUsrSpcNamSp 10a
D HiUsrSpcLibSp 10a
**-- User space generic header: ---------- -----------------------------**
D UsrSpc Ds Based( pUsrSpc )
D UsOfsHdr 10i 0 Overlay( UsrSpc: 117 )
D UsOfsLst 10i 0 Overlay( UsrSpc: 125 )
D UsNumLstEnt 10i 0 Overlay( UsrSpc: 133 )
D UsSizLstEnt 10i 0 Overlay( UsrSpc: 137 )
**-- User space pointers: ----------------------------------------------**
D pUsrSpc s * Inz( *Null )
D pHdrInf s * Inz( *Null )
D pLstEnt s * Inz( *Null )
**-- TCP/IP attributes: ------------------------------------------------**
D TCPA0100 Ds
D T1BytRtn 10u 0
D T1BytAvl 10u 0
D T1StkSts 10u 0
D T1ActTim 10u 0
D T1LstStrD 8a
D T1LstStrT 6a
D T1LstEndD 8a
D T1LstEndT 6a
D T1StrJob 10a
D T1StrUsr 10a
D T1StrNbr 6a
D T1StrJobInt 16a
D T1EndJob 10a
D T1EndUsr 10a
D T1EndNbr 6a
D T1EndJobInt 16a
D T1OfsAddInf 10u 0
D T1LenAddInf 10u 0
**-- Interface list entry: ---------------------------------------------**
D NIFC0100 Ds Based( pLstEnt )
D I1IntAdr 15a
D 1a
D I1IntAdrB 10u 0
D I1NetAdr 15a
D 1a
D I1NetAdrB 10u 0
D I1NetName 10a
D I1LinD 10a
D I1IfcName 10a
D 2a
D I1IfcSts 10u 0
D I1IfcTypSrv 10i 0
D I1IfcMtu 10i 0
D I1IfcLinTyp 10i 0
D I1HostAdr 15a
D 1a
D I1HostAdrB 10u 0
D I1IfcSubMsk 15a
D 1a
D I1IfcSubMskB 10u 0
D I1DirBdcAdr 15a
D 1a
D I1DirBdcAdrB 10u 0
D I1ChgDat 8a
D I1ChgTim 6a
D I1AstLocIfc 15a
D 3a
D I1AstLocIfcB 10u 0
D I1ChgSts 10u 0
D I1PckRul 10i 0
D I1AutStr 10u 0
D I1TrlBitSeq 10u 0
D I1IfcTyp 10u 0
D I1PrxArpEnb 10u 0
D I1PrxArpAlw 10u 0
D I1CfgMtu 10i 0
**-- Following fields were added in V5R2 - do not reference in V5R1:
D I1NetNameF 24a
D I1IfcNameF 24a
**-- Create user space: -------------------------------------------------**
D CrtUsrSpc Pr ExtPgm( 'QUSCRTUS' )
D CsSpcNamQ 20a Const
D C***tAtr 10a Const
D CsInzSiz 10i 0 Const
D CsInzVal 1a Const
D CsPubAut 10a Const
D CsText 50a Const
**-- Optional 1:
D CsReplace 10a Const Options( *NoPass )
D CsError 32767a Options( *NoPass: *VarSize )
**-- Optional 2:
D CsDomain 10a Const Options( *NoPass )
**-- Delete user space: -------------------------------------------------**
D DltUsrSpc Pr ExtPgm( 'QUSDLTUS' )
D DsSpcNamQ 20a Const
D DsError 32767a Options( *VarSize )
**-- Retrieve pointer to user space: ------------------------------------**
D RtvPtrSpc Pr ExtPgm( 'QUSPTRUS' )
D RpSpcNamQ 20a Const
D RpPointer *
D RpError 32767a Options( *NoPass: *VarSize )
**-- Retrieve TCP/IP attributes: ---------------------------------------**
D RtvTcpA Pr ExtProc( 'QtocRtvTCPA' )
D RtRcvVar 32767a Options( *VarSize )
D RtRcvVarLen 10i 0 Const
D RtFmtNam 8a Const
D RtError 32767a Options( *VarSize )
**-- List network interfaces: ------------------------------------------**
D LstNetIfc Pr ExtProc( 'QtocLstNetIfc' )
D LiSpcNamQ 20a Const
D LiFmtNam 8a Const
D LiError 32767a Options( *VarSize )
**
**-- Mainline: ---------------------------------------------------------**
**
C Time Time
C Except Header
**
C CallP RtvTcpA( TCPA0100
C : %Size( TCPA0100 )
C : 'TCPA0100'
C : ApiError
C )
**
C Select
C When AeBytAvl > *Zero
**-- Error occurred...
C Except NoStack
**
C When T1StkSts = 0 Or
C T1StkSts = 2
**-- TCP/IP stack not operational...
C Except NoStack
**
C Other
**
C CallP CrtUsrSpc( PxUsrSpc
C : *Blanks
C : 65535
C : x'00'
C : '*CHANGE'
C : *Blanks
C : '*YES'
C : ApiError
C )
**
C CallP LstNetIfc( PxUsrSpc
C : 'NIFC0100'
C : ApiError
C )
**
C If AeBytAvl = *Zero
C ExSr PrcLstEnt
C EndIf
**
C CallP DltUsrSpc( PxUsrSpc
C : ApiError
C )
**
C If NbrRcds = *Zero
C Except NoRcds
C EndIf
C EndSl
**
C Eval *InLr = *On
C Return
**
**-- Process list entries: ---------------------------------------------**
C PrcLstEnt BegSr
**
C CallP RtvPtrSpc( PxUsrSpc
C : pUsrSpc
C )
**
C Eval pHdrInf = pUsrSpc + UsOfsHdr
C Eval pLstEnt = pUsrSpc + UsOfsLst
**
C For Lix = 1 to UsNumLstEnt
**
C ExSr PrtIfcDtl
**
C If Lix < UsNumLstEnt
C Eval pLstEnt = pLstEnt + UsSizLstEnt
C EndIf
C EndFor
**
C EndSr
**-- Print interface detail line: --------------------------------------**
C PrtIfcDtl BegSr
**
C If PlCurLin > PlOvfLin - 3
C Except Header
C EndIf
**
C Eval TcpIfcSts = IfcSts(I1IfcSts + 1)
C Eval IfcLinTyp = LinTyp(I1IfcLinTyp + 5)
**
C Eval NbrRcds = NbrRcds + 1
C Except IfcDtl
**
C EndSr
**-- Print file definition: --------------------------------------------**
OQSYSPRT EF Header 2 3
O UDATE Y 8
O Time 18 ' : : '
O 75 'Print TCP/IP interface -
O status'
O 107 'Program:'
O PsPgmNam 118
O 126 'Page:'
O PAGE + 1
OQSYSPRT EF Header 1
O 16 'Internet address'
O 29 'Subnet mask'
O 50 'Network address'
O 64 'Host address'
O 72 'Line'
O 84 '-type'
O 96 'Interface'
O 106 '-status'
O 118 'MTU'
**
OQSYSPRT EF IfcDtl 1
O I1IntAdr 15
O I1IfcSubMsk 33
O I1NetAdr 50
O I1HostAdr 67
O I1LinD 78
O IfcLinTyp 86
O I1IfcName 97
O TcpIfcSts 108
O I1IfcMtu 3 118
**
OQSYSPRT EF NoStack 1
O 26 '(TCP/IP stack not active)'
OQSYSPRT EF NoRcds 1
O 26 '(No entries found)'
Thanks to Carsten Flensburg
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