Sorry, this Subject was tagged with a [SPAM] notation on my end and I neglected to remove it before I replied.
Gary > -----Original Message----- > From: IBM Mainframe Assembler List [mailto:ASSEMBLER- > l...@listserv.uga.edu] On Behalf Of Gary L Peskin > Sent: Saturday, November 27, 2010 11:16 PM > To: ASSEMBLER-LIST@LISTSERV.UGA.EDU > Subject: Re: [SPAM] NSLOOKUP vs BPX1GHN > > Assuming that PLIST points to a valid remote parameter list, I think > that your best bet is to dump PLIST before the call to make sure it > looks okay and to turn on Trace Resolver output with a > > //SYSTCPT DD SYSOUT=* > > I'm not sure how you're getting your base resolver files. Have a look > at > http://publib.boulder.ibm.com/infocenter/zos/v1r9/topic/com.ibm.zos.r9.h > alz0 > 02/mvsso.htm#mvsso which explains how the base resolver configuration > file is located. > > Gary > > > -----Original Message----- > > From: IBM Mainframe Assembler List [mailto:ASSEMBLER- > > l...@listserv.uga.edu] On Behalf Of esst...@juno.com > > Sent: Saturday, November 27, 2010 7:31 AM > > To: ASSEMBLER-LIST@LISTSERV.UGA.EDU > > Subject: [SPAM] NSLOOKUP vs BPX1GHN > > > > This probably is not the right forum for this question. > > But the people on this forum seem to be more knowledgeable. I have > > used BPX1GHN before to retrieve an ip-address for a given "Host Name". > > > > Im not sure I understand why I cant consistently retrieve a ip-address > > for Host Name. I consistently receive a not found or un-known host? > > Return code of 1 and Reason Code of X '1004' > > When I issue NSLOOKUP command from TSO 6, NSLOOKUP does return an ip- > > address and a server name. > > > > I also understand that NSLOOKUP and BPX1GHN uses different methologies > > to locate the host name. It is my understanding that BPX1GHN uses the > > TCP/IP Resolver service to resolve the host name through a name > server. > > BPX1GHN may also need to search the HOSTS.SITEINFO dataset. > > > > NSLOOKUP on the otherhand uses multiple socket and resolver service > > calls (a lower level servoice call). > > > > I have posted code snipets below. > > > > Not being a Network Or TCP Person can someone explain why I Can not > > retrieve the ip-address from a host name via BPX1GHN ? As I mentioned > > earlier I have used BPX1GHN at other installations. I do have an OMVS > > segment defined to me RACF id. > > > > I dont understand why I continue to receive UNKNOWN HOST for BPX1GHN. > > > > ************************************************************ > > > > MVC BPXEYE,=C'BPXPARMS' Eye Catcher > > > > XC BPXSAVE,BPXSAVE Register Save Area > > > > XC HOST_NAME,HOST_NAME > > > > LA R0,00 > > > > ST R0,BPXVAL Return Value > > > > ST R0,BPXRETCD Return Code > > > > ST R0,BPXRSNCD Reason Code > > > > ST R0,HOST_ENT@ Address Of Host Name Stru > > > > LA R0,L'C_SYSAHIP Length Of Host Name > > > > ST R0,HOST_NAME# Length Of Host Name > > > > MVC HOST_NAME(L'C_SYSAHIP),C_SYSAHIP > > > > * > > > > LOAD EP=BPX1GHN Load BPX Module > > > > STM R15,R1,LOADREGS Save Registers From Load > > > > ST R0,BPX1GHN@ Save Address Of BPX1GHN > > > > * > > > > L R15,BPX1GHN@ Get Address Of BPX1GHN > > > > CALL (15), Get host by name > > > > (HOST_NAME, Input: Name of Host being queried > > > > HOST_NAME#, Input: Length of host name > > > > HOST_ENT@, Output: 0 or -> HOSTENT structure > > > > BPXVAL, Return code > > > > BPXRETCD, Return code > > > > BPXRSNCD), Reason code > > > > LINKINST=BASR, > > > > VL,MF=(E,PLIST) --------------------------------- > - > > > > * > > > > > > > > > > > > ******************************************************************* > > ******************************************************************* > > > > BPXPARMS DSECT > > > > BPXSAVE DS 9D Register Save Area > > > > BPXEYE DS D <=EYE CATCHER > > > > BPXVAL DS A > > > > BPXRETCD DS A Return Code > > > > BPXRSNCD DS A Reason Code > > > > HOST_ENT@ DS A Address Of Host Name Structure > > > > HOST_NAME# DS A Length Of Host Name > > > > HOST_NAME DS CL255 Host Name > > > > BPXPARMS# EQU *-BPXPARMS STRUCTURE LENGTH > > > > ******************************************************************* > > ******************************************************************* > > > > > > > > Paul D'Angelo
