NAME

       shisa_key_update - API function

SYNOPSIS

       #include <shisa.h>

       int  shisa_key_update(Shisa  *  dbh,  const  char  *  realm, const char * principal, const
       Shisa_key * oldkey, const Shisa_key * newkey);

ARGUMENTS

       Shisa * dbh Shisa library handle created by shisa().

       const char * realm
                   Name of the realm the principal belongs to.

       const char * principal
                   Name of the principal needing an updated key.

       const Shisa_key * oldkey
                   Pointer to a Shisa key structure giving matching criteria for locating the key
                   to be updated.

       const Shisa_key * newkey
                   Pointer  to  a  complete Shisa key structure, in which all fields are used for
                   the new key.  Note that oldkey normally has far fewer fields filled-in.

DESCRIPTION

       Modifies data about a key stored in  the  database,  a  key  belonging  to  the  principal
       selected  by  principal  and  realm.  First oldkey is used to locate the key to update, as
       does shisa_keys_find().  Then the found key is modified to carry whatever  information  is
       stored in newkey.

       Not all elements of oldkey need to be filled out, only sufficiently many so as to uniquely
       identify the desired key.  For example, if you want to modify the information stored about
       a  unique  key  of etype 3, i.e., DES-CBC-MD5, then set the field key->etype to 3, leaving
       all other fields as zero.

RETURN VALUE

       Returns   SHISA_OK   on   success,   SHISA_NO_KEY   if   no   key   could   be    located,
       SHISA_MULTIPLE_KEY_MATCH if more than a single key matched the given criteria, or an error
       code otherwise.

REPORTING BUGS

       Report     bugs     to     <bug-shishi@gnu.org>.      GNU      Shishi      home      page:
       http://www.gnu.org/software/shishi/      General      help     using     GNU     software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright © 2002-2022 Simon Josefsson.
       Copying and distribution of this file, with or without modification, are permitted in  any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  shishi  is maintained as a Texinfo manual.  If the info and
       shishi programs are properly installed at your site, the command

              info shishi

       should give you access to the complete manual.