41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/statfs.h>
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int main(int argc, char **argv) {
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int fd = open("/bin/about.elf", O_RDONLY);
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if (fd == -1)
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return 0;
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printf("fd = %d\n", fd);
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struct statfs diskInfo;
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fstatfs(fd, &diskInfo);
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unsigned long long blocksize1 = diskInfo.f_bsize; //每个block里包含的字节数
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unsigned long long totalsize =
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blocksize1 * diskInfo.f_blocks; //总的字节数，f_blocks为block的数目
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printf("Total_size=%llu B =%llu KB =%llu MB = %llu GB\n", totalsize,
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totalsize >> 10, totalsize >> 20, totalsize >> 30);
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/* 2.获取一下剩余空间和可用空间的大小 */
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unsigned long long freeDisk = diskInfo.f_bfree * blocksize1; //剩余空间的大小
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unsigned long long availableDisk =
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diskInfo.f_bavail * blocksize1; //可用空间大小
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printf("Disk_free=%llu MB =%llu GB Disk_available=%llu MB = %llu GB\n",
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freeDisk >> 20, freeDisk >> 30, availableDisk >> 20,
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availableDisk >> 30);
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printf("====================\n");
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printf("diskInfo address: %p\n", diskInfo);
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printf("f_type= %lu\n", diskInfo.f_type);
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printf("f_bsize = %lu\n", diskInfo.f_bsize);
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printf("f_blocks = %d\n", diskInfo.f_blocks);
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printf("f_bfree = %lu\n", diskInfo.f_bfree);
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printf("b_avail = %d\n", diskInfo.f_bavail);
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printf("f_files = %d\n", diskInfo.f_files);
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printf("f_ffree = %lu\n", diskInfo.f_ffree);
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printf("f_fsid = %ld\n", diskInfo.f_fsid);
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printf("f_namelen = %ld\n", diskInfo.f_namelen);
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printf("f_frsize = %ld\n", diskInfo.f_frsize);
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printf("f_flags = %ld\n", diskInfo.f_flags);
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return 0;
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}
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