The following example will instruct FFST to stop wrapping dumps. The rest of the parameters are left to their earlier values.
#define INCL_FFST
#include <unichar.h>
#include <os2.h>
APIRET rc;
CONFIGPARMS FFSTConfig;
PCONFIGPARMS pFFSTConfig *FFSTConfig;
FFSTConfig.dump_file_wrap = FFST_DUMP_WRAP_OFF; /* Set dump wrap to off*/
/* set rest of the parameters to indicate no change */
FFSTConfig.dump_file_directory_size = FFST_DUMP_FILE_DIRECTORY_SIZE_NO_CHANGE;
FFSTConfig.keep_dup_dump = FFST_KEEP_DUP_DUMP_NO_CHANGE;
FFSTConfig.dump_file_directory_length = FFST_DUMP_FILE_DIERCTORY_LENGTH_NO_CHANGE;
FFSTConfig.no_of_disabled_products = FFST_NO_OF_PROBE_DISABLED_PRODUCTS_NO_CHANGE;
FFSTConfig.dump_file_directory = NULL;
FFSTConfig.PProductData = NULL;
rc = FFSTSetConfiguration( pFFSTConfig);
if (rc |= 0) /* If Problem */
{ /* reason */
printf("FFSTConfigure error: return code = %d",rc);
return;
}