Implementation of data link layer such as character count in c?

Answer 1

#include <stdio.h>

#include <string.h>

void stuff(char str[40]);

main()

{

char str[40];

int i;

printf("\n enter the string:");

scanf("%s", &str);

printf("\n the given string is:");

printf("\n %s", str);

stuff(str);

}

void stuff(char str[40])

{

int i, j, k = 0, l, n, z;

printf("\n now we are stuffing the data::\n");

n = strlen(str);

for (i = 0; i < n; i++)

{

if (str[i] == '1')

{

k = 1;

for (l = i + 1; l <= i + 5; l++)

{

if (str[l] == '1')

k++;

else

break;

}

if (k == 6)

{

i = i + 6;

z = n + 1;

for (j = z; j >= i; j--)

{

str[j] = str[j - 1];

}

str[j] = '0';

}

}

}

printf("\nThe resultant string after stuffing is..\n");

printf("%s\n", str);

}