fts.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <libgen.h>
#include "flash_ts.h"
#include "fts.h"

int main (int argc, char **argv) {
	if (strcmp(basename(argv[0]), "fts-set") == 0) {
		if (argc != 3) {
			fprintf(stderr, "Usage: %s KEY VALUE\n", argv[0]);
			exit(EXIT_FAILURE);
		}

		int fts_dev;
		if ((fts_dev = open(FTS_DEVICE, O_RDONLY)) == -1) {
			perror("Failed to open " FTS_DEVICE);
			exit(EXIT_FAILURE);
		}

		struct flash_ts_io_req cmd;
		strncpy(cmd.key, argv[1], FLASH_TS_MAX_KEY_SIZE - 1);
		strncpy(cmd.val, argv[2], FLASH_TS_MAX_VAL_SIZE - 1);

		if (ioctl(fts_dev, FLASH_TS_IO_SET, &cmd) == -1) {
			perror("Failed to write fts entry");
			exit(EXIT_FAILURE);
		}

		return EXIT_SUCCESS;
	}
	else if (strcmp(basename(argv[0]), "fts-get") == 0) {
		if (argc != 2) {
			fprintf(stderr, "Usage: %s KEY\n", argv[0]);
			exit(EXIT_FAILURE);
		}

		int fts_dev;
		if ((fts_dev = open(FTS_DEVICE, O_RDONLY)) == -1) {
			perror("Failed to open " FTS_DEVICE);
			exit(EXIT_FAILURE);
		}

		struct flash_ts_io_req cmd;
		strncpy(cmd.key, argv[1], FLASH_TS_MAX_KEY_SIZE - 1);

		if (ioctl(fts_dev, FLASH_TS_IO_GET, &cmd) == -1) {
			perror("Failed to read fts entry");
			exit(EXIT_FAILURE);
		}

		printf("%s\n", cmd.val);

		return EXIT_SUCCESS;
	} else {
		fprintf(stderr, "Invalid applet %s\n", argv[0]);
		fprintf(stderr, "Supported applets: fts-get, fts-set\n");
		exit(EXIT_FAILURE);
	}
}