prntstring
prntstring("System id", sysid, 32);
prntstring("Volume id", volid, 32);
prntstring("Volume set id", volsetid, 128);
prntstring("Publisher id", pubid, 128);
prntstring("Data preparer id", prepid, 128);
prntstring("Application id", applid, 128);
prntstring("Copyright File id", copyfile, 37);
prntstring("Abstract File id", absfile, 37);
prntstring("Bibliographic File id", bibfile, 37);
static void prntstring(char *heading, char *s, int maxlen);