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(struct kld_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.

Debian                                           March 28, 2012                                       KLDSTAT(2)