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1277d583ef
It's kinda funny how I can make a mistake like this in Serenity and then get so used to it by spending lots of time using this API that I start to believe that this is how printf() always worked..
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
#include <AK/AKString.h>
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#include <AK/Vector.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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struct FileSystem {
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String fs;
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size_t total_block_count { 0 };
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size_t free_block_count { 0 };
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size_t total_inode_count { 0 };
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size_t free_inode_count { 0 };
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String mount_point;
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};
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int main(int, char**)
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{
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FILE* fp = fopen("/proc/df", "r");
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if (!fp) {
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perror("failed to open /proc/df");
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return 1;
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}
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printf("Filesystem Blocks Used Available Mount point\n");
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for (;;) {
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char buf[4096];
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char* ptr = fgets(buf, sizeof(buf), fp);
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if (!ptr)
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break;
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auto parts = String(buf, Chomp).split(',');
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if (parts.size() < 6)
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break;
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bool ok;
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String fs = parts[0];
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unsigned total_block_count = parts[1].to_uint(ok);
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ASSERT(ok);
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unsigned free_block_count = parts[2].to_uint(ok);
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ASSERT(ok);
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unsigned total_inode_count = parts[3].to_uint(ok);
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ASSERT(ok);
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unsigned free_inode_count = parts[4].to_uint(ok);
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ASSERT(ok);
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String mount_point = parts[5];
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(void)total_inode_count;
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(void)free_inode_count;
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printf("%-10s", fs.characters());
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printf("%10u ", total_block_count);
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printf("%10u ", total_block_count - free_block_count);
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printf("%10u ", free_block_count);
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printf("%s", mount_point.characters());
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printf("\n");
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}
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int rc = fclose(fp);
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ASSERT(rc == 0);
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return 0;
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}
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