int btrfs_main(int argc, char **argv)
{
const struct cmd_struct *cmd;
const char *bname;
if ((bname = strrchr(argv[0], '/')) != NULL)
bname++;
else
bname = argv[0];
if (!strcmp(bname, "btrfsck")) {
argv[0] = "check";
} else {
argc--;
argv++;
handle_options(&argc, &argv);
if (argc > 0) {
if (!prefixcmp(argv[0], "--"))
argv[0] += 2;
} else {
usage_command_group(&btrfs_cmd_group, 0, 0);
exit(1);
}
}
cmd = parse_command_token(argv[0], &btrfs_cmd_group);
handle_help_options_next_level(cmd, argc, argv);
crc32c_optimization_init();
fixup_argv0(argv, cmd->token);
exit(cmd->fn(argc, argv));
}
void help_command_group(const struct cmd_group *grp, int argc, char **argv)
{
int full = 0;
if (argc > 1) {
if (!strcmp(argv[1], "--full"))
full = 1;
}
usage_command_group(grp, full, 0);
}
int handle_command_group(const struct cmd_group *grp, int argc,
char **argv)
{
const struct cmd_struct *cmd;
argc--;
argv++;
if (argc < 1) {
usage_command_group(grp, 0, 0);
exit(1);
}
cmd = parse_command_token(argv[0], grp);
handle_help_options_next_level(cmd, argc, argv);
fixup_argv0(argv, cmd->token);
return cmd->fn(argc, argv);
}
void help_unknown_token(const char *arg, const struct cmd_group *grp)
{
fprintf(stderr, "%s: unknown token '%s'\n", argv0_buf, arg);
usage_command_group(grp, 0, 1);
exit(1);
}