narc/cli/include/command.h

45 lines
1.4 KiB
C

/*
* Copyright 2024 <lhearachel@proton.me>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef NARC_COMMAND_H
#define NARC_COMMAND_H
#include <stdbool.h>
// Standard failure macro. `fail` should be implemented for all commands
// as an end-state where any potentially-allocated memory is freed and the
// routine returns EXIT_FAILURE.
#define FAIL(msgfmt, ...) \
{ \
fprintf(stderr, msgfmt, __VA_ARGS__); \
goto fail; \
}
struct command {
const char *abbrev;
const char *name;
int (*main)(int argc, const char **argv);
};
extern const struct command handlers[];
int create(int argc, const char **argv);
int extract(int argc, const char **argv);
int yank(int argc, const char **argv);
int info(int argc, const char **argv);
int help(int argc, const char **argv);
#endif // NARC_COMMAND_H