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Message
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| j1 |
 Posted: Tue Mar 21, 2006 11:28 am Post subject: C Client program not picking up environment variable values |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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Hi,
I am trying to run a C client from a Solaris Box, connecting to a Qmgr on another soalris box. I am getting the MQRC 2058, and the program dosent seem to be picking up either the MQSERVER or MQCHLLIB/MQCHLTAB variable values for the MQCONN call. The same environment variable valies work for the amqsput program and I compred the code of my program with amqsput and I dont see any major difference. Am i missing out something simple. Do let me know. i also looked through the other posts, but didnt find anything
Rgds |
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| j1 |
| Posted: Tue Mar 21, 2006 11:30 am Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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i also tried running it as
instead of just
but get an
| Quote: |
| ksh: syntax error: `(' unexpected |
error. |
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| jefflowrey |
| Posted: Tue Mar 21, 2006 11:48 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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So when you run amqsputc from the same shell as you run your program, then amqsputc connects to the queue manager, but your program doesn't?
_________________
I am *not* the model of the modern major general. |
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| wschutz |
| Posted: Tue Mar 21, 2006 11:53 am Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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are you "exporting" those variables?
_________________
-wayne |
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| j1 |
| Posted: Tue Mar 21, 2006 11:56 am Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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| yup, am exporting the variables. and am running ampqsputc without the "." and it connects just fine. |
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| j1 |
| Posted: Tue Mar 21, 2006 11:59 am Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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here is what it looks like :
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#include <cmqc.h>
#include <cmqxc.h>
#include <stdio.h>
#include <string.h>
int main()
{
MQHCONN hConn;
MQHOBJ hObject;
char qmgrName[50];
MQLONG iCompCode;
MQLONG iReason;
MQLONG iMessageLen;
MQBYTE buffer[1000];
MQLONG iOpenOptions ;
MQOD mqod = {MQOD_DEFAULT};
MQMD mqmd = {MQMD_DEFAULT};
MQPMO mqpmo = {MQPMO_DEFAULT};
MQCNO mqcno = {MQCNO_DEFAULT} ;
MQCD mqcd = {MQCD_CLIENT_CONN_DEFAULT};
qmgrName[0] = 0;
MQCONN(qmgrName, /* queue manager */
&hConn, /* connection handle */
&iCompCode, /* completion code */
&iReason);
/* MQCONNX(qmgrName,
&mqcno,
&hConn,
&iCompCode,
&iReason);*/
printf(" Completion Code %ld\n", iCompCode);
printf(" CONNX Reason Code %ld\n", iReason);
printf(" Conn name %s\n", mqcd.ConnectionName);
printf(" Channel Name name %s\n", mqcd.ChannelName);
printf(" Qmger Name %s\n", qmgrName);
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[/code] |
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| jefflowrey |
| Posted: Tue Mar 21, 2006 12:02 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Did you link your program against the client libraries, or against the server libraries?
_________________
I am *not* the model of the modern major general. |
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| j1 |
| Posted: Tue Mar 21, 2006 12:14 pm Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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i am compiling it with the '-lmqm' suffix. Initially when i ran the program it gave me an error that it couldnt find the libmqm and libmqmz.so files, so i just copied them over from the server to /usr/lib. Do you think that may be the problem  What exactly do you mean by linking against client vs server libraries. pls pardon the novice progammer who has only coded ESQL fr the last 3 years. A c client coding task has been fosited upon me... |
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| jefflowrey |
| Posted: Tue Mar 21, 2006 12:19 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| wschutz |
| Posted: Tue Mar 21, 2006 12:19 pm Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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he means: -lmqic
and I thought the install makes symlinks for the mq libs in /usr/lib for you, this is generally a bad idea:
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| so i just copied them over from the server to /usr/lib. |
_________________
-wayne |
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| clindsey |
| Posted: Tue Mar 21, 2006 1:18 pm Post subject: |
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Knight
Joined: 12 Jul 2002
Posts: 586
Location: Dallas, Tx
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| Quote: |
I am trying to run a C client from a Solaris Box, connecting to a Qmgr on another soalris box
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You should install WMQ client code on this box. Let the install put the code in the correct place and let it create the links.
Clients are a free download. Go to the SupportPacs page at http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27007197#1
and get either MACY (V 5.3) or MP6M (V 6.0)
Charlie |
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| j1 |
| Posted: Wed Mar 22, 2006 6:27 am Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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Hi All,
Thanks for the inputs. I did download the supportpacs, but the samples with the 6.0 support pacs, dont seem to have SSL support. Not sure if the support pac itself has SSL Support. The 5.3 support pac seems to have SSL support, but I beleive the way SSL works with 5.3 and 6.0 is different. correct ?
Coming back to the Code I was building, Compiling with the client libraries did resolve the MQRC 2058 but am now getting a MQRC 2277 on my MQCONN call. I think it may be one of the connection parameters I am passing in. Looking into the client side error logs indicates that the Channel Name wasnt getting picked up from the MQSERVER variable. Here is the exact error message:
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AMQ9498: The MQCD structure supplied was not valid.
EXPLANATION:
The value of the 'ChannelName' field has the value '0'. This value is invalid
for the operation requested.
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Also, below is an excerpt of the program, with sensitive information masked out. I wonder if it is the "mqcno.ClientConnPtr=&mqcd;" line.
Thanks again for the help.
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MQHCONN hConn;
MQHOBJ hObject;
char qmgrName[50];
MQLONG iCompCode;
MQLONG iReason;
MQLONG iMessageLen;
MQBYTE buffer[1000];
MQLONG iOpenOptions ;
MQOD mqod = {MQOD_DEFAULT};
MQMD mqmd = {MQMD_DEFAULT};
MQPMO mqpmo = {MQPMO_DEFAULT};
MQCNO mqcno = {MQCNO_DEFAULT} ;
MQCD mqcd = {MQCD_CLIENT_CONN_DEFAULT};
MQSCO mysco = {MQSCO_DEFAULT};
qmgrName[0] = 0;
/* For SSL **/
strncpy(mysco.KeyRepository, "something here",MQ_SSL_KEY_REPOSITORY_LENGTH);
printf("Key Repository:%s\n", mysco.KeyRepository);
/** Specify CipherSpec */
strcpy(mqcd.SSLCipherSpec,"cipher spec here");
mqcno.SSLConfigPtr = &mysco;
mqcno.ClientConnPtr=&mqcd;
mqcno.Version = MQCNO_VERSION_4;
printf("CipherSpec :%s\n", mqcd.SSLCipherSpec);
/*MQCONN(qmgrName,
&hConn,
&iCompCode,
&iReason); */
MQCONNX(qmgrName,
&mqcno,
&hConn,
&iCompCode,
&iReason);
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| wschutz |
| Posted: Wed Mar 22, 2006 7:04 am Post subject: |
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Jedi Knight
Joined: 02 Jun 2005
Posts: 3316
Location: IBM (retired)
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If you want to use the MQCONNX call, you need to specify MQCD.ChannelName and MQCD.ConnectionName ('host(port)').
If you do use MQCONNX, then the MQSERVER / MQCHLLIB / TAB environment variables are ignored.
V6 of the client does support SSL.
_________________
-wayne |
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| jefflowrey |
| Posted: Wed Mar 22, 2006 7:07 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| wschutz wrote: |
| If you do use MQCONNX, then the MQSERVER / MQCHLLIB / TAB environment variables are ignored. |
To clarify a bit - the environment variables are ignored because you have said "I will specify all of the details of the client channel myself". That's what the MQCONNX is for.
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I am *not* the model of the modern major general. |
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| j1 |
| Posted: Wed Mar 22, 2006 7:14 am Post subject: |
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Centurion
Joined: 23 Jun 2003
Posts: 139
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| I would like to use the channel table set up in this case, but arent we constrained to use the MQCONNX call to specify cipherspec, key repository path on the client side etc..., since those are also part of the connection options structure. |
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