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/*
* Authors: Martin Nagy <mnagy@redhat.com>
*
* Copyright (C) 2009 Red Hat
* see file 'COPYING' for use and warranty information
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 or later
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LD_UTIL_H_
#define _LD_UTIL_H_
#define CHECK(op) \
do { \
result = (op); \
if (result != ISC_R_SUCCESS) \
goto cleanup; \
} while (0)
#define CHECK_NEXT(op) \
do { \
result = (op); \
if (result != ISC_R_SUCCESS) \
goto next; \
} while (0)
#define CHECKED_MEM_ALLOCATE(m, target_ptr, s) \
do { \
(target_ptr) = isc_mem_allocate((m), (s)); \
if ((target_ptr) == NULL) { \
result = ISC_R_NOMEMORY; \
goto cleanup; \
} \
} while (0)
#define CHECKED_MEM_GET(m, target_ptr, s) \
do { \
(target_ptr) = isc_mem_get((m), (s)); \
if ((target_ptr) == NULL) { \
result = ISC_R_NOMEMORY; \
goto cleanup; \
} \
} while (0)
#define CHECKED_MEM_GET_PTR(m, target_ptr) \
CHECKED_MEM_GET(m, target_ptr, sizeof(*(target_ptr)))
#define CHECKED_MEM_STRDUP(m, source, target) \
do { \
(target) = isc_mem_strdup((m), (source)); \
if ((target) == NULL) { \
result = ISC_R_NOMEMORY; \
goto cleanup; \
} \
} while (0)
#define ZERO_PTR(ptr) memset((ptr), 0, sizeof(*(ptr)))
#define SAFE_MEM_PUT(m, target_ptr, target_size) \
do { \
if ((target_ptr) != NULL) \
isc_mem_put((m), (target_ptr), \
(target_size)); \
} while (0)
#define SAFE_MEM_PUT_PTR(m, target_ptr) \
SAFE_MEM_PUT((m), (target_ptr), sizeof(*(target_ptr)))
#define MEM_PUT_AND_DETACH(target_ptr) \
isc_mem_putanddetach(&(target_ptr)->mctx, target_ptr, \
sizeof(*(target_ptr)))
#define DECLARE_BUFFER(name, len) \
isc_buffer_t name; \
unsigned char name##__base[len]
#define INIT_BUFFER(name) \
isc_buffer_init(&name, name##__base, sizeof(name##__base))
#define DECLARE_BUFFERED_NAME(name) \
dns_name_t name; \
DECLARE_BUFFER(name##__buffer, DNS_NAME_MAXWIRE)
#define INIT_BUFFERED_NAME(name) \
do { \
INIT_BUFFER(name##__buffer); \
dns_name_init(&name, NULL); \
dns_name_setbuffer(&name, &name##__buffer); \
} while (0)
#define FOR_EACH(elt, list) \
for ((elt) = HEAD(list); (elt) != NULL; (elt) = NEXT(elt, link))
#define FOR_EACH_UNLINK(elt, list) \
do { \
typeof(elt) __next_elt; \
for (elt = HEAD(list); elt != NULL; elt = NEXT(elt, link)) { \
__next_elt = NEXT(elt, link); \
UNLINK(list, elt, link);
#define END_FOR_EACH_UNLINK(elt) \
elt = __next_elt; \
} \
} while (0)
#endif /* !_LD_UTIL_H_ */
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