NAME

     kldstat — get status of kld file

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/param.h>
     #include <sys/linker.h>

     int
     kldstat(int fileid, struct kld_file_stat *stat);

DESCRIPTION

     The kldstat() system call writes the info for the file referred to by fileid into stat.

     struct kld_file_stat {
             int         version;        /* set to sizeof(linker_file_stat) */
             char        name[MAXPATHLEN];
             int         refs;
             int         id;
             caddr_t     address;
             size_t      size;
             char        pathname[MAXPATHLEN];
     };

     version     This field is set to the size of the structure mentioned above by the code
                 calling kldstat(), and not kldstat() itself.

     name        The name of the file referred to by fileid.

     refs        The number of modules referenced by fileid.

     id          The id of the file specified in fileid.

     address     The load address of the kld file.

     size        The amount of memory in bytes allocated by the file.

     pathname    The full name of the file referred to by fileid, including the path.

RETURN VALUES

     The kldstat() function returns the value 0 if successful; otherwise the value -1 is returned
     and the global variable errno is set to indicate the error.

ERRORS

     The information for the file referred to by fileid is filled into the structure pointed to
     by stat unless:

     [ENOENT]           The file was not found (probably not loaded).

     [EINVAL]           The version specified in the version field of stat is not the proper
                        version.  You would need to rebuild world, the kernel, or your
                        application, if this error occurs, given that you did properly fill in
                        the version field.

     [EFAULT]           There was a problem copying one, some, or all of the fields into stat in
                        the copyout(9) function.

SEE ALSO

     kldfind(2), kldfirstmod(2), kldload(2), kldnext(2), kldsym(2), kldunload(2), modfind(2),
     modfnext(2), modnext(2), modstat(2), kld(4), kldstat(8)

HISTORY

     The kld interface first appeared in FreeBSD 3.0.

BUGS

     The pathname may not be accurate if the file system mounts have changed since the module was
     loaded, or if this function is called within a chrooted environment.