如何使用Linux上运行的C语言程序获得驱动器的确切总空间?我不想使用shell脚本。有什么建议吗?
最佳答案
statfs/statfs64
#include <sys/vfs.h> /* or <sys/statfs.h> */
int statfs(const char *path, struct statfs *buf);
int fstatfs(int fd, struct statfs *buf);
从手册页:
The function statfs() returns information about a mounted file system.
path is the pathname of any file within the mounted file system.
buf is a pointer to a statfs structure defined approximately as follows:
struct statfs {
long f_type; /* type of file system (see below) */
long f_bsize; /* optimal transfer block size */
long f_blocks; /* total data blocks in file system */
long f_bfree; /* free blocks in fs */
long f_bavail; /* free blocks avail to non-superuser */
long f_files; /* total file nodes in file system */
long f_ffree; /* free file nodes in fs */
fsid_t f_fsid; /* file system id */
long f_namelen; /* maximum length of filenames */
};
你可以这样使用它:
struct statfs buf;
statfs("/", &buf);
关于c - 如何使用Linux上运行的C语言程序获取驱动器的确切总空间?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/1564190/