Question

Implement function (in C programming) that calculates and returns the total size of items in a directory given by name.

• Only consider immediate contents (no need to recursively check subdirectories).
• Assume that appropriate header files are included (no need to specify them using #include).

int dir_size(const char *name);

Answer 1

C code:

#include<stdio.h>
#include<dirent.h>
#include<string.h>

//Required Function
int dir_size(const char *name)
{
DIR *d;
d = opendir(name);
struct dirent *dir;
int count=0;
if(d)
{
while((dir = readdir(d)) != NULL)
{
//printf("%s\n", dir->d_name);
if(strcmp(dir->d_name,".")&&strcmp(dir->d_name,"..")) //condition for not counting "." and ".."
{
count++;
}
}
closedir(d);
}
return count;
}

int main()
{
const char directory[100];
printf("Enter the path of Directory:");
scanf("%s",directory);
int size=dir_size(&directory[0]);
printf("\nThe size of the directory is %d\n",size);
return 0;
}
Sample Input Output: