oneof
int oneof(char *, char*[], int);
if (((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
(argnum = oneof(fs->fs_spec, argv, argc)) >= 0) &&
if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
(argnum = oneof(fs->fs_spec, argv, argc)) >= 0) {
static int oneof(char *, char *[], int);
if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
(argnum = oneof(fs->fs_spec, argv, argc)) >= 0) {
int oneof(char *, char *[], int);