ladybird/Userland/df.cpp

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1.5 KiB
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#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <AK/AKString.h>
#include <AK/Vector.h>
struct FileSystem {
String fs;
size_t total_block_count { 0 };
size_t free_block_count { 0 };
size_t total_inode_count { 0 };
size_t free_inode_count { 0 };
String mount_point;
};
int main(int, char**)
{
FILE* fp = fopen("/proc/df", "r");
if (!fp) {
perror("failed to open /proc/df");
return 1;
}
printf("Filesystem Blocks Used Available Mount point\n");
for (;;) {
char buf[4096];
char* ptr = fgets(buf, sizeof(buf), fp);
if (!ptr)
break;
auto parts = String(buf, Chomp).split(',');
if (parts.size() < 6)
break;
bool ok;
String fs = parts[0];
unsigned total_block_count = parts[1].to_uint(ok);
ASSERT(ok);
unsigned free_block_count = parts[2].to_uint(ok);
ASSERT(ok);
unsigned total_inode_count = parts[3].to_uint(ok);
ASSERT(ok);
unsigned free_inode_count = parts[4].to_uint(ok);
ASSERT(ok);
String mount_point = parts[5];
printf("% 10s", fs.characters());
printf("%10u ", total_block_count);
printf("%10u ", total_block_count - free_block_count);
printf("%10u ", free_block_count);
printf("%s", mount_point.characters());
printf("\n");
}
int rc = fclose(fp);
ASSERT(rc == 0);
return 0;
}