Developer's Daily | Unix by Example |
main | java | perl | unix | dev directory | web log |
sysfs ? get file system type information |
int sysfs(int option, const char * fsname); int sysfs(int option, unsigned int fs_index, char * buf); int sysfs(int option); |
sysfs returns information about the file system types currently present in the kernel. The specific form of the sysfs call and the information returned depends on the option in effect: |
1 |
Translate the file-system identifier string fsname into a file-system type index. |
||
2 |
Translate the file-system type index fs_index into a null-terminated file-system identifier string. This string will be written to the buffer pointed to by buf. Make sure that buf has enough space to accept the string. |
||
3 |
Return the total number of file system types currently present in the kernel. |
The numbering of the file-system type indexes begins with zero. |
On success, sysfs returns the file-system index for option 1, zero for option 2, and the number of currently configured file systems for option 3. On error, ?1 is returned, and errno is set appropriately. |
EINVAL |
fsname is not a valid file-system type identifier; fs_index is out-of-bounds; option is invalid. |
||
EFAULT |
Either fsname or buf is outside your accessible address space. |
SVr4. |