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USTAT !!!USTAT NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS NOTES CONFORMING TO SEE ALSO ---- !!NAME ustat - get file system statistics !!SYNOPSIS __#include __ /* libc[[45] */ __#include __ /* glibc2 */ __int ustat(dev_t__ ''dev''__, struct ustat *__ ''ubuf''__); __ !!DESCRIPTION __ustat__ returns information about a mounted file system. ''dev'' is a device number identifying a device containing a mounted file system. ''ubuf'' is a pointer to a ustat structure that contains the following members: daddr_t f_tfree; /* Total free blocks */ ino_t f_tinode; /* Number of free inodes */ char f_fname[[6]; /* Filsys name */ char f_fpack[[6]; /* Filsys pack name */ The last two fields, f_fname and f_fpack, are not implemented and will always be filled with null characters. !!RETURN VALUE On success, zero is returned and the ustat structure pointed to by ''ubuf'' will be filled in. On error, -1 is returned, and ''errno'' is set appropriately. !!ERRORS __EINVAL__ ''dev'' does not refer to a device containing a mounted file system. __EFAULT__ ''ubuf'' points outside of your accessible address space. __ENOSYS__ The mounted file system referenced by ''dev'' does not support this operation, or any version of Linux before 1.3.16. !!NOTES __ustat__ has only been provided for compatibility. All new programs should use statfs(2) instead. !!CONFORMING TO SVr4. SVr4 documents additional error conditions ENOLINK, ECOMM, and EINTR but has no ENOSYS condition. !!SEE ALSO statfs(2), stat(2) ----
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ustat(2)
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