shisa_key_update - API function

       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.

       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.

       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.

       shisa_key_update - API function

       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/

       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.

       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

              infoshishi

       should give you access to the complete manual.

shishi                                                1.0.3                                  shisa_key_update(3)

#include<shisa.h>intshisa_key_update(Shisa*dbh,constchar*realm,constchar*principal,constShisa_key*oldkey,constShisa_key*newkey);