diff options
Diffstat (limited to 'contrib/isc-dhcp/common/memory.c')
| -rw-r--r-- | contrib/isc-dhcp/common/memory.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/contrib/isc-dhcp/common/memory.c b/contrib/isc-dhcp/common/memory.c deleted file mode 100644 index 4a444e2..0000000 --- a/contrib/isc-dhcp/common/memory.c +++ /dev/null @@ -1,161 +0,0 @@ -/* memory.c - - Memory-resident database... */ - -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * Copyright (c) 1995-2003 by Internet Software Consortium - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT - * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * Internet Systems Consortium, Inc. - * 950 Charter Street - * Redwood City, CA 94063 - * <info@isc.org> - * http://www.isc.org/ - * - * This software has been written for Internet Systems Consortium - * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc. - * To learn more about Internet Systems Consortium, see - * ``http://www.isc.org/''. To learn more about Vixie Enterprises, - * see ``http://www.vix.com''. To learn more about Nominum, Inc., see - * ``http://www.nominum.com''. - */ - -#ifndef lint -static char copyright[] = -"$Id: memory.c,v 1.66.2.5 2004/06/10 17:59:19 dhankins Exp $ Copyright (c) 2004 Internet Systems Consortium. All rights reserved.\n"; -#endif /* not lint */ - -#include "dhcpd.h" - -struct group *root_group; -group_hash_t *group_name_hash; -int (*group_write_hook) (struct group_object *); - -isc_result_t delete_group (struct group_object *group, int writep) -{ - struct group_object *d; - - /* The group should exist and be hashed - if not, it's invalid. */ - if (group_name_hash) { - d = (struct group_object *)0; - group_hash_lookup (&d, group_name_hash, group -> name, - strlen (group -> name), MDL); - } else - return ISC_R_INVALIDARG; - if (!d) - return ISC_R_INVALIDARG; - - /* Also not okay to delete a group that's not the one in - the hash table. */ - if (d != group) - return ISC_R_INVALIDARG; - - /* If it's dynamic, and we're deleting it, we can just blow away the - hash table entry. */ - if ((group -> flags & GROUP_OBJECT_DYNAMIC) && - !(group -> flags & GROUP_OBJECT_STATIC)) { - group_hash_delete (group_name_hash, - group -> name, strlen (group -> name), MDL); - } else { - group -> flags |= GROUP_OBJECT_DELETED; - if (group -> group) - group_dereference (&group -> group, MDL); - } - - /* Store the group declaration in the lease file. */ - if (writep && group_write_hook) { - if (!(*group_write_hook) (group)) - return ISC_R_IOERROR; - } - return ISC_R_SUCCESS; -} - -isc_result_t supersede_group (struct group_object *group, int writep) -{ - struct group_object *t, *u; - isc_result_t status; - - /* Register the group in the group name hash table, - so we can look it up later. */ - if (group_name_hash) { - t = (struct group_object *)0; - group_hash_lookup (&t, group_name_hash, - group -> name, - strlen (group -> name), MDL); - if (t && t != group) { - /* If this isn't a dynamic entry, then we need to flag - the replacement as not dynamic either - otherwise, - if the dynamic entry is deleted later, the static - entry will come back next time the server is stopped - and restarted. */ - if (!(t -> flags & GROUP_OBJECT_DYNAMIC)) - group -> flags |= GROUP_OBJECT_STATIC; - - /* Delete the old object if it hasn't already been - deleted. If it has already been deleted, get rid of - the hash table entry. This is a legitimate - situation - a deleted static object needs to be kept - around so we remember it's deleted. */ - if (!(t -> flags & GROUP_OBJECT_DELETED)) - delete_group (t, 0); - else { - group_hash_delete (group_name_hash, - group -> name, - strlen (group -> name), - MDL); - group_object_dereference (&t, MDL); - } - } - } else { - group_new_hash (&group_name_hash, 0, MDL); - t = (struct group_object *)0; - } - - /* Add the group to the group name hash if it's not - already there, and also thread it into the list of - dynamic groups if appropriate. */ - if (!t) { - group_hash_add (group_name_hash, group -> name, - strlen (group -> name), group, MDL); - } - - /* Store the group declaration in the lease file. */ - if (writep && group_write_hook) { - if (!(*group_write_hook) (group)) - return ISC_R_IOERROR; - } - return ISC_R_SUCCESS; -} - -int clone_group (struct group **gp, struct group *group, - const char *file, int line) -{ - isc_result_t status; - struct group *g = (struct group *)0; - - /* Normally gp should contain the null pointer, but for convenience - it's permissible to clone a group into itself. */ - if (*gp && *gp != group) - return 0; - if (!group_allocate (&g, file, line)) - return 0; - if (group == *gp) - *gp = (struct group *)0; - group_reference (gp, g, file, line); - g -> authoritative = group -> authoritative; - group_reference (&g -> next, group, file, line); - group_dereference (&g, file, line); - return 1; -} |
