You should be able to compile this with these changes:

1) Change these global declarations from:

   extern  dsUint32            dsmHandle;
   extern  dsmApiVersion       apiVer;      /* application's API version */
   dsInt16   rc;

to

dsUint32_t       dsmHandle;
dsmApiVersion    apiVer;      /* application's API version */
dsInt16_t        rc;

2) Declare the function rcApiOut function above main():

void rcApiOut (dsUint32_t handle, dsInt16_t rc);

The revised program now looks like this:

==========================
#include <stdio.h>
#include <stdlib.h>

#include "dsmapitd.h"      /* ADSM API type definitions                */
#include "dsmapifp.h"      /* ADSM API function prototypes.            */
#include "dsmapips.h"      /* ADSM API function prototypes.            */

dsUint32_t       dsmHandle;
dsmApiVersion    apiVer;      /* application's API version */
char             *node;
char             *pw;         /* Must allocate space                    */
char             *owner;      /*     for these pointer variables        */
dsInt16_t        rc;

void rcApiOut (dsUint32_t handle, dsInt16_t rc);

int main(int argc, char **argv)
{

        apiVer.version = DSM_API_VERSION;
        apiVer.release = DSM_API_RELEASE;
        apiVer.level   = DSM_API_LEVEL;

        rc = dsmInit(&dsmHandle,
                                        &apiVer,
                                        NULL,NULL,NULL,
                                        NULL,
                                        NULL,NULL);
        if (rc)
        {
                printf("\n*** Init failed: ");
                rcApiOut(dsmHandle, rc);
        }

        printf("\n* It must have worked.*\n\n");

        return rc;
}

void rcApiOut (dsUint32_t handle, dsInt16_t rc)
{
     char *msgBuf ;

     if ((msgBuf = (char *)malloc(DSM_MAX_RC_MSG_LENGTH+1)) == NULL)
     {
          printf("Abort:  Not enough memory.\n") ;
          exit(1) ;
      }

      dsmRCMsg(handle, rc, msgBuf);
      printf("%s\n",msgBuf);
      free(msgBuf) ;
      return;
}
==========================

Andy Raibeck
IBM Storage Systems Division
ADSM Client Development
e-mail: storman AT us.ibm DOT com

Please respond to ADSM-L AT VM.MARIST DOT EDU
To: ADSM-L AT VM.MARIST DOT EDU
cc:
Subject: Help! C API problems


Hi.  I am trying to write a program that will attempt to connect to an ADSM
server and then disconnect.  The point is to determine if the server is up.  I
have been looking at the online API documentation as well as the sample
programs supplied.  I'm handicapped because I am not overly fluent in C.  I'm
attempting this on AIX 4.1.5 with the version 3 ADSM client.  I would
appreciate any help you can provide.  The following is the text of the program
as well as the errors I'm receiving while attempting the
compile.

Thanks for your help!!

Craig
catreptow AT equitable-of-iowa DOT com
========================================================
tetons:tcat#cat adsm_up.c
#include <stdio.h>
#include <stdlib.h>

#include "dsmapitd.h"      /* ADSM API type definitions                */
#include "dsmapifp.h"      /* ADSM API function prototypes.            */
#include "dsmapips.h"      /* ADSM API function prototypes.            */

extern  dsUint32            dsmHandle;
extern  dsmApiVersion       apiVer;      /* application's API version */
char    *node;
char    *pw;                /* Must allocate space                    */
char    *owner;             /*     for these pointer variables        */
dsInt16   rc;

int main(int argc, char **argv)
{

        apiVer.version = DSM_API_VERSION;
        apiVer.release = DSM_API_RELEASE;
        apiVer.level   = DSM_API_LEVEL;

        rc = dsmInit(&dsmHandle,
                                        &apiVer,
                                        NULL,NULL,NULL,
                                        NULL,
                                        NULL,NULL);
        if (rc)
        {
                printf("\n*** Init failed: ");
                rcApiOut(dsmHandle, rc);
        }

        printf("\n* It must have worked.*\n\n");

        return rc;
}

void rcApiOut (dsUint32_t handle, dsInt16_t rc)
{
     char *msgBuf ;

     if ((msgBuf = (char *)malloc(DSM_MAX_RC_MSG_LENGTH+1)) == NULL)
     {
          printf("Abort:  Not enough memory.\n") ;
          exit(1) ;
      }

      dsmRCMsg(handle, rc, msgBuf);
      printf("%s\n",msgBuf);
      free(msgBuf) ;
      return;
}

tetons:tcat#
==========================================================
tetons:tcat#cc adsm_up.c -o adsm_up
"adsm_up.c", line 8.9: 1506-166 (S) Definition of function dsUint32 requires
parentheses.
"adsm_up.c", line 8.29: 1506-276 (S) Syntax error: possible missing '{'?
"adsm_up.c", line 18.9: 1506-045 (S) Undeclared identifier apiVer.
"adsm_up.c", line 22.23: 1506-045 (S) Undeclared identifier dsmHandle.
"adsm_up.c", line 22.9: 1506-045 (S) Undeclared identifier rc.
"adsm_up.c", line 38.6: 1506-343 (S) Redeclaration of rcApiOut differs from
previous declaration on line 30 of "adsm_up.c".
"adsm_up.c", line 38.6: 1506-050 (I) Return type "void" in redeclaration is not
compatible with the previous return type "int".
"adsm_up.c", line 38.6: 1506-379 (I) Prototype for function rcApiOut must
contain only promoted types if prototype and nonprototype declarations are
mixed.
"adsm_up.c", line 38.6: 1506-380 (I) Parameter 2 has type "short" which
promotes to "int".
tetons:tcat#