如何确定db2secGetAuthIDs中initsessionidtype的正确返回值

SQL_API_RC SQL_API_FN db2secGetAuthIDs(
  db2Uint32 initsessionidtype,
  db2Uint32 initsessionid,
  db2Uint32 *authidcount,
  db2SecAuthID *authidlist,
  db2Uint32 *authidlistlen,
  char *authidlistbuffer,
  db2Uint32 *authidlistbufferlen,
  db2Uint32 *sqlcode,
  char *sqlstate
);

#include <stdio.h>
#include <stdlib.h>
#include <sqlcli1.h>

int main() {
  SQLRETURN rc;
  db2Uint32 initsessionidtype = DB2SEC_SESSIONIDTYPE_CLIENT;
  db2Uint32 initsessionid = 12345; // 假设这是客户端会话ID
  db2Uint32 authidcount;
  db2SecAuthID authidlist[10];
  db2Uint32 authidlistlen = 10;
  char authidlistbuffer[1024];
  db2Uint32 authidlistbufferlen = 1024;
  db2Uint32 sqlcode;
  char sqlstate[6];

  rc = db2secGetAuthIDs(initsessionidtype, initsessionid, &authidcount, authidlist, &authidlistlen, authidlistbuffer, &authidlistbufferlen, &sqlcode, sqlstate);

  if (rc == SQL_SUCCESS) {
    printf("获取授权标识符列表成功！\n");
    printf("授权标识符数量：%u\n", authidcount);
    for (int i = 0; i < authidcount; i++) {
      printf("授权标识符：%s\n", authidlist[i].authid);
    }
  } else {
    printf("获取授权标识符列表失败！错误码：%d，SQLSTATE：%s\n", sqlcode, sqlstate);
  }

  return 0;
}