NAME

getfsstat − Get a list of all mounted file systems

SYNOPSIS

#include <sys/types.h>
#include <sys/mount.h> int getfsstat(
        struct statfs buf[],
        long bufsize,
        int flags );

PARAMETERS

bufAn array of statfs structures. 

bufsizeSpecifies the size in bytes of the buf parameter. 

flagsSpecifies one of the following flags:

MNT_WAIT
Wait for an update from each file system before returning information.

MNT_NOWAIT
Return information without requesting an update from each file system. Thus, some of the information will be out of date, but the getfsstat() function will not block because it is waiting for information from a file system that is unable to respond. 

DESCRIPTION

The getfsstat() function returns information about all mounted file systems. Upon successful completion, the buffer pointed to by the buf parameter is filled with an array of statfs structures, one for each mounted file system up to the size specified by the bufsize parameter. 

If the buf parameter is given as 0 (zero), the getfsstat() function returns just the number of mounted file systems. 

RETURN VALUES

Upon successful completion, the number of statfs structures is returned. Otherwise, −1 is returned and errno is set to indicate the error. 

ERRORS

If the getfsstat() function fails, errno may be set to one of the following values:

[EFAULT]
The buf parameter points to an invalid address. 

[EIO]An I/O error occurred while reading from or writing to the file system. 

SEE ALSO

Functions: statfs(2)

Commands: mount(8)