sunos man page for sysfs

sysfs(2)							   System Calls 							  sysfs(2)

NAME
       sysfs - get file system type information

SYNOPSIS
       #include <sys/fstyp.h>
       #include <sys/fsid.h>

       int sysfs(int opcode, const char *fsname);

       int sysfs(int opcode, int fs_index, char *buf);

       int sysfs(int opcode);

DESCRIPTION
       The  sysfs()  function  returns	information  about  the  file system types configured  in the system.  The number of arguments accepted by
       sysfs() depends on the opcode argument, which can take the following values:

       GETFSIND        Translate fsname, a null-terminated file-system type identifier,
			into a file-system type index.

       GETFSTYP        Translate fs_index, a file-system type index, into a null-terminated file-system type identifier and write it into the buf-
		       fer pointed to by buf, which must be at least of size FSTYPSZ as defined in <sys/fstyp.h>.

       GETNFSTYP       Return the total number of file system types configured in the system.

RETURN VALUES
       Upon successful completion, the value returned depends upon the opcode argument as follows:

       GETFSIND        the file-system type index

       GETFSTYP        0

       GETNFSTYP       the number of file system types configured

       Otherwise, -1 is returned  and errno is set to indicate the error.

ERRORS
       The sysfs() function will fail if:

       EFAULT	       The buf or fsname argument points to an illegal address.

       EINVAL	       The fsname argument points to an invalid file-system identifier; the fs_index argument is 0 or invalid; or the opcode argu-
		       ment is invalid.

SunOS 5.10							    5 Jul 1990								  sysfs(2)