8. File Find (ffile)

<<available_commands>>=
fprintf(stderr, "ffind: looks up file given name\n");
<<function_declarations>>=
static int get_ffile(int argc, char *argv[]);
<<functions>>=
static int get_ffile(int argc, char *argv[])
{
    wmp_core core;
    int rc;
    wmp_file file;
    int err;

    err = 0;

    if (argc < 2) {
        fprintf(stderr, "Usage: %s NAME [prog]\n", argv[0]);
        return 1;
    }

    rc = wmp_core_open(&core, wmp_filename_get());

    if (!rc) return 0;

    wmp_file_init(&file);

    rc = wmp_lookup_file(&core, argv[1], &file);

    if (!rc) {
        fprintf(stderr,
                "Could not find file '%s'\n",
                argv[1]);
        err = 1;
    } else {
        wmp_block top;
        printf("id = %d\n", file.id);
        printf("filename = %s\n", file.filename);
        wmp_block_init(&top);
        rc = wmp_find_block(&core, file.top, &top, file.prog);
        if (rc) {
            printf("top = %d (%s)\n", file.top, top.name);
        } else {
            printf("top = %d\n", file.top);
        }
        printf("next_file = %d\n", file.next_file);
        printf("program id = %d\n", file.prog);
        wmp_block_free(&top);
    }
    wmp_file_free(&file);
    wmp_core_close(&core);
    return err;
}
<<command_parsing>>=
else if (match(argv[1], len, "ffile", 5)) {
    argv++;
    argc--;
    get_ffile(argc, argv);
}



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