umcumgr/src/image.c

//
// Created by nock on 26/03/19.
//

#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include "image.h"
#include "nmgr.h"

void image_help(void){
    printf("umcumgr image [list|upload|reset]\n");
}

static char *hex(char in) {
    static char out[3] = {0};
    static char lookup[] = {
        '0', '1', '2', '3', '4', '5', '6', '7',
        '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
    };
    out[0] = lookup[in >> 4];
    out[1] = lookup[in & 0xf];
    out[2] = 0;
    return out;
}

void image_main(int fd, int argc, char **argv){
    if (!strcmp(argv[1], "list")) {
        int rc = write(fd, &(char []){SHELL_NLIP_PKT_START1, SHELL_NLIP_PKT_START2}, 2);
        rc = write(fd, IMAGE_LIST_CMD, sizeof(IMAGE_LIST_CMD)-1);
        if (rc < sizeof(IMAGE_LIST_CMD)-1) {
            fprintf(stderr, "Failed to send command: %s", strerror(errno));
        }
        rc = write(fd, "\n", 1);
        //return;
        char tmp[256] = {0};
        while (1) {
            if (read(fd, &tmp, 255) < 0) {
                if (errno == EAGAIN) {
                    continue;
                }
                fprintf(stderr, "Failed to read from port: %s\n", strerror(errno));
                break;
            }
            printf("%s ", tmp);
            break;
        }
    } else if (!strcmp(argv[1], "upload")) {
        printf("upload\n");
    } else if (!strcmp(argv[1], "reset")) {
        printf("reset\n");
    } else {
        image_help();
    }
}