Data Transmission

Code

#include <stdio.h>
#include <stdint.h>
#include <string.h>
void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {

    uint32_t forth_byte_mask   = 0x000000ff;
    uint32_t third_byte_mask   = 0x0000ff00;
    uint32_t second_byte_mask  = 0x00ff0000;
    uint32_t first_byte_mask   = 0xff000000;

    arr[0] = (value & first_byte_mask)>>(32-8);
    arr[1] = (value & second_byte_mask)>>(32-16);
    arr[2] = (value & third_byte_mask) >>(32-24);
    arr[3] = (value & forth_byte_mask) >>(32-32);
}

int main() {
    uint32_t value;
    uint8_t arr[4];
    scanf("%u", &value);
    convert_to_big_endian(value, arr);
    for (int i = 0; i < 4; i++) {
        printf("%u", arr[i]);
        if(i<3){
            printf(" ");
        }
    }
    return 0;
}

Solving Approach

Mask the value with a preset mask values then store it in buffer