5ad7270f30
This fixes a security vulnerability in the bundled resolver library. Requested by: scottl(re)
1154 lines
28 KiB
C
1154 lines
28 KiB
C
/* alloc.c
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Functions supporting memory allocation for the object management
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protocol... */
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/*
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* Copyright (c) 1999-2003 Internet Software Consortium.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of The Internet Software Consortium nor the names
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* of its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This software has been written for the Internet Software Consortium
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* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
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* To learn more about the Internet Software Consortium, see
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* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
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* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
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* ``http://www.nominum.com''.
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*/
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#include <omapip/omapip_p.h>
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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struct dmalloc_preamble *dmalloc_list;
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unsigned long dmalloc_outstanding;
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unsigned long dmalloc_longterm;
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unsigned long dmalloc_generation;
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unsigned long dmalloc_cutoff_generation;
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#endif
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#if defined (DEBUG_RC_HISTORY)
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struct rc_history_entry rc_history [RC_HISTORY_MAX];
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int rc_history_index;
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int rc_history_count;
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#endif
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#if defined (DEBUG_RC_HISTORY)
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static void print_rc_hist_entry (int);
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#endif
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VOIDPTR dmalloc (size, file, line)
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unsigned size;
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const char *file;
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int line;
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{
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unsigned char *foo = malloc (size + DMDSIZE);
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int i;
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VOIDPTR *bar;
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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struct dmalloc_preamble *dp;
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#endif
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if (!foo)
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return (VOIDPTR)0;
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bar = (VOIDPTR)(foo + DMDOFFSET);
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memset (bar, 0, size);
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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dp = (struct dmalloc_preamble *)foo;
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dp -> prev = dmalloc_list;
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if (dmalloc_list)
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dmalloc_list -> next = dp;
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dmalloc_list = dp;
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dp -> next = (struct dmalloc_preamble *)0;
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dp -> size = size;
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dp -> file = file;
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dp -> line = line;
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dp -> generation = dmalloc_generation++;
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dmalloc_outstanding += size;
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for (i = 0; i < DMLFSIZE; i++)
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dp -> low_fence [i] =
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(((unsigned long)
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(&dp -> low_fence [i])) % 143) + 113;
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for (i = DMDOFFSET; i < DMDSIZE; i++)
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foo [i + size] =
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(((unsigned long)
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(&foo [i + size])) % 143) + 113;
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#if defined (DEBUG_MALLOC_POOL_EXHAUSTIVELY)
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/* Check _every_ entry in the pool! Very expensive. */
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for (dp = dmalloc_list; dp; dp = dp -> prev) {
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for (i = 0; i < DMLFSIZE; i++) {
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if (dp -> low_fence [i] !=
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(((unsigned long)
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(&dp -> low_fence [i])) % 143) + 113)
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{
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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foo = (unsigned char *)dp;
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for (i = DMDOFFSET; i < DMDSIZE; i++) {
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if (foo [i + dp -> size] !=
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(((unsigned long)
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(&foo [i + dp -> size])) % 143) + 113) {
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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}
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#endif
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#endif
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#ifdef DEBUG_REFCNT_DMALLOC_FREE
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rc_register (file, line, 0, foo + DMDOFFSET, 1, 0, RC_MALLOC);
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#endif
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return bar;
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}
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void dfree (ptr, file, line)
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VOIDPTR ptr;
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const char *file;
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int line;
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{
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if (!ptr) {
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log_error ("dfree %s(%d): free on null pointer.", file, line);
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return;
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}
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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{
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unsigned char *bar = ptr;
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struct dmalloc_preamble *dp, *cur;
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int i;
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bar -= DMDOFFSET;
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cur = (struct dmalloc_preamble *)bar;
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for (dp = dmalloc_list; dp; dp = dp -> prev)
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if (dp == cur)
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break;
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if (!dp) {
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log_error ("%s(%d): freeing unknown memory: %lx",
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file, line, (unsigned long)cur);
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abort ();
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}
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if (dp -> prev)
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dp -> prev -> next = dp -> next;
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if (dp -> next)
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dp -> next -> prev = dp -> prev;
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if (dp == dmalloc_list)
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dmalloc_list = dp -> prev;
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if (dp -> generation >= dmalloc_cutoff_generation)
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dmalloc_outstanding -= dp -> size;
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else
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dmalloc_longterm -= dp -> size;
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for (i = 0; i < DMLFSIZE; i++) {
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if (dp -> low_fence [i] !=
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(((unsigned long)
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(&dp -> low_fence [i])) % 143) + 113)
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{
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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for (i = DMDOFFSET; i < DMDSIZE; i++) {
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if (bar [i + dp -> size] !=
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(((unsigned long)
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(&bar [i + dp -> size])) % 143) + 113) {
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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ptr = bar;
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}
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#endif
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#ifdef DEBUG_REFCNT_DMALLOC_FREE
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rc_register (file, line,
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0, (unsigned char *)ptr + DMDOFFSET, 0, 1, RC_MALLOC);
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#endif
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free (ptr);
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}
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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/* For allocation functions that keep their own free lists, we want to
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account for the reuse of the memory. */
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void dmalloc_reuse (foo, file, line, justref)
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VOIDPTR foo;
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const char *file;
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int line;
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int justref;
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{
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struct dmalloc_preamble *dp;
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/* Get the pointer to the dmalloc header. */
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dp = foo;
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dp--;
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/* If we just allocated this and are now referencing it, this
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function would almost be a no-op, except that it would
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increment the generation count needlessly. So just return
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in this case. */
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if (dp -> generation == dmalloc_generation)
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return;
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/* If this is longterm data, and we just made reference to it,
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don't put it on the short-term list or change its name -
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we don't need to know about this. */
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if (dp -> generation < dmalloc_cutoff_generation && justref)
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return;
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/* Take it out of the place in the allocated list where it was. */
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if (dp -> prev)
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dp -> prev -> next = dp -> next;
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if (dp -> next)
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dp -> next -> prev = dp -> prev;
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if (dp == dmalloc_list)
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dmalloc_list = dp -> prev;
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/* Account for its removal. */
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if (dp -> generation >= dmalloc_cutoff_generation)
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dmalloc_outstanding -= dp -> size;
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else
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dmalloc_longterm -= dp -> size;
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/* Now put it at the head of the list. */
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dp -> prev = dmalloc_list;
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if (dmalloc_list)
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dmalloc_list -> next = dp;
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dmalloc_list = dp;
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dp -> next = (struct dmalloc_preamble *)0;
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/* Change the reference location information. */
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dp -> file = file;
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dp -> line = line;
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/* Increment the generation. */
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dp -> generation = dmalloc_generation++;
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/* Account for it. */
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dmalloc_outstanding += dp -> size;
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}
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void dmalloc_dump_outstanding ()
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{
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static unsigned long dmalloc_cutoff_point;
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struct dmalloc_preamble *dp;
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unsigned char *foo;
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int i;
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if (!dmalloc_cutoff_point)
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dmalloc_cutoff_point = dmalloc_cutoff_generation;
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for (dp = dmalloc_list; dp; dp = dp -> prev) {
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if (dp -> generation <= dmalloc_cutoff_point)
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break;
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#if defined (DEBUG_MALLOC_POOL)
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for (i = 0; i < DMLFSIZE; i++) {
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if (dp -> low_fence [i] !=
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(((unsigned long)
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(&dp -> low_fence [i])) % 143) + 113)
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{
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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foo = (unsigned char *)dp;
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for (i = DMDOFFSET; i < DMDSIZE; i++) {
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if (foo [i + dp -> size] !=
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(((unsigned long)
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(&foo [i + dp -> size])) % 143) + 113) {
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log_error ("malloc fence modified: %s(%d)",
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dp -> file, dp -> line);
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abort ();
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}
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}
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#endif
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#if defined (DEBUG_MEMORY_LEAKAGE) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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/* Don't count data that's actually on a free list
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somewhere. */
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if (dp -> file) {
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#if defined (DEBUG_RC_HISTORY)
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int i, count, inhistory = 0, noted = 0;
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/* If we have the info, see if this is actually
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new garbage. */
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if (rc_history_count < RC_HISTORY_MAX) {
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count = rc_history_count;
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} else
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count = RC_HISTORY_MAX;
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i = rc_history_index - 1;
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if (i < 0)
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i += RC_HISTORY_MAX;
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do {
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if (rc_history [i].addr == dp + 1) {
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inhistory = 1;
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if (!noted) {
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log_info (" %s(%d): %d", dp -> file,
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dp -> line, dp -> size);
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noted = 1;
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}
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print_rc_hist_entry (i);
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if (!rc_history [i].refcnt)
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break;
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}
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if (--i < 0)
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i = RC_HISTORY_MAX - 1;
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} while (count--);
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if (!inhistory)
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#endif
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log_info (" %s(%d): %d",
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dp -> file, dp -> line, dp -> size);
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}
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#endif
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}
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if (dmalloc_list)
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dmalloc_cutoff_point = dmalloc_list -> generation;
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}
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#endif /* DEBUG_MEMORY_LEAKAGE || DEBUG_MALLOC_POOL */
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#if defined (DEBUG_RC_HISTORY)
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static void print_rc_hist_entry (int i)
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{
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log_info (" referenced by %s(%d)[%lx]: addr = %lx refcnt = %x",
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rc_history [i].file, rc_history [i].line,
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(unsigned long)rc_history [i].reference,
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(unsigned long)rc_history [i].addr,
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rc_history [i].refcnt);
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}
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void dump_rc_history (void *addr)
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{
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int i;
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i = rc_history_index;
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if (!rc_history [i].file)
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i = 0;
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else if (rc_history_count < RC_HISTORY_MAX) {
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i -= rc_history_count;
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if (i < 0)
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i += RC_HISTORY_MAX;
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}
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rc_history_count = 0;
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while (rc_history [i].file) {
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if (!addr || addr == rc_history [i].addr)
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print_rc_hist_entry (i);
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++i;
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if (i == RC_HISTORY_MAX)
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i = 0;
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if (i == rc_history_index)
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break;
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}
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}
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void rc_history_next (int d)
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{
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#if defined (RC_HISTORY_COMPRESSION)
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int i, j = 0, m, n = 0;
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void *ap, *rp;
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/* If we are decreasing the reference count, try to find the
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entry where the reference was made and eliminate it; then
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we can also eliminate this reference. */
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if (d) {
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m = rc_history_index - 1000;
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if (m < -1)
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m = -1;
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ap = rc_history [rc_history_index].addr;
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rp = rc_history [rc_history_index].reference;
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for (i = rc_history_index - 1; i > m; i--) {
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if (rc_history [i].addr == ap) {
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if (rc_history [i].reference == rp) {
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if (n > 10) {
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for (n = i; n <= rc_history_index; n++)
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print_rc_hist_entry (n);
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n = 11;
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}
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memmove (&rc_history [i],
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&rc_history [i + 1],
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(unsigned)((rc_history_index - i) *
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sizeof (struct rc_history_entry)));
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--rc_history_count;
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--rc_history_index;
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for (j = i; j < rc_history_count; j++) {
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if (rc_history [j].addr == ap)
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--rc_history [j].refcnt;
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}
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if (n > 10) {
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for (n = i; n <= rc_history_index; n++)
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print_rc_hist_entry (n);
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n = 11;
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exit (0);
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}
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return;
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}
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}
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}
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}
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#endif
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if (++rc_history_index == RC_HISTORY_MAX)
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rc_history_index = 0;
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++rc_history_count;
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}
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#endif
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#if defined (DEBUG_MEMORY_LEAKAGE) || defined (DEBUG_MALLOC_POOL) || \
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defined (DEBUG_MEMORY_LEAKAGE_ON_EXIT)
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struct caller {
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struct dmalloc_preamble *dp;
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int count;
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};
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static int dmalloc_find_entry (struct dmalloc_preamble *dp,
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struct caller *array,
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int min, int max)
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{
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int middle;
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int cmp;
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middle = (min + max) / 2;
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if (middle == min)
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return middle;
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if (array [middle].dp -> file == dp -> file) {
|
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if (array [middle].dp -> line == dp -> line)
|
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return middle;
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else if (array [middle].dp -> line < dp -> line)
|
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return dmalloc_find_entry (dp, array, middle, max);
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else
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return dmalloc_find_entry (dp, array, 0, middle);
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} else if (array [middle].dp -> file < dp -> file)
|
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return dmalloc_find_entry (dp, array, middle, max);
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else
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return dmalloc_find_entry (dp, array, 0, middle);
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}
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|
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void omapi_print_dmalloc_usage_by_caller ()
|
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{
|
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struct dmalloc_preamble *dp;
|
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unsigned char *foo;
|
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int ccur, cmax, i, j;
|
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struct caller cp [1024];
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|
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cmax = 1024;
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ccur = 0;
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memset (cp, 0, sizeof cp);
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for (dp = dmalloc_list; dp; dp = dp -> prev) {
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i = dmalloc_find_entry (dp, cp, 0, ccur);
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if ((i == ccur ||
|
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cp [i].dp -> file != dp -> file ||
|
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cp [i].dp -> line != dp -> line) &&
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ccur == cmax) {
|
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log_error ("no space for memory usage summary.");
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return;
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}
|
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if (i == ccur) {
|
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cp [ccur++].dp = dp;
|
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cp [i].count = 1;
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} else if (cp [i].dp -> file < dp -> file ||
|
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(cp [i].dp -> file == dp -> file &&
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cp [i].dp -> line < dp -> line)) {
|
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if (i + 1 != ccur)
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memmove (cp + i + 2, cp + i + 1,
|
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(ccur - i) * sizeof *cp);
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cp [i + 1].dp = dp;
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cp [i + 1].count = 1;
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ccur++;
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} else if (cp [i].dp -> file != dp -> file ||
|
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cp [i].dp -> line != dp -> line) {
|
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memmove (cp + i + 1,
|
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cp + i, (ccur - i) * sizeof *cp);
|
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cp [i].dp = dp;
|
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cp [i].count = 1;
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ccur++;
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} else
|
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cp [i].count++;
|
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#if 0
|
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printf ("%d\t%s:%d\n", i, dp -> file, dp -> line);
|
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dump_rc_history (dp + 1);
|
|
#endif
|
|
}
|
|
for (i = 0; i < ccur; i++) {
|
|
printf ("%d\t%s:%d\t%d\n", i,
|
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cp [i].dp -> file, cp [i].dp -> line, cp [i].count);
|
|
dump_rc_history (cp [i].dp + 1);
|
|
}
|
|
}
|
|
#endif /* DEBUG_MEMORY_LEAKAGE || DEBUG_MALLOC_POOL */
|
|
|
|
isc_result_t omapi_object_allocate (omapi_object_t **o,
|
|
omapi_object_type_t *type,
|
|
size_t size,
|
|
const char *file, int line)
|
|
{
|
|
size_t tsize;
|
|
omapi_object_t *foo;
|
|
isc_result_t status;
|
|
|
|
if (type -> allocator) {
|
|
foo = (omapi_object_t *)0;
|
|
status = (*type -> allocator) (&foo, file, line);
|
|
tsize = type -> size;
|
|
} else
|
|
status = ISC_R_NOMEMORY;
|
|
if (status == ISC_R_NOMEMORY) {
|
|
if (type -> sizer)
|
|
tsize = (*type -> sizer) (size);
|
|
else
|
|
tsize = type -> size;
|
|
|
|
/* Sanity check. */
|
|
if (tsize < sizeof (omapi_object_t))
|
|
return ISC_R_INVALIDARG;
|
|
|
|
foo = dmalloc (tsize, file, line);
|
|
if (!foo)
|
|
return ISC_R_NOMEMORY;
|
|
}
|
|
|
|
status = omapi_object_initialize (foo, type, size, tsize, file, line);
|
|
if (status != ISC_R_SUCCESS) {
|
|
if (type -> freer)
|
|
(*type -> freer) (foo, file, line);
|
|
else
|
|
dfree (foo, file, line);
|
|
return status;
|
|
}
|
|
return omapi_object_reference (o, foo, file, line);
|
|
}
|
|
|
|
isc_result_t omapi_object_initialize (omapi_object_t *o,
|
|
omapi_object_type_t *type,
|
|
size_t usize, size_t psize,
|
|
const char *file, int line)
|
|
{
|
|
memset (o, 0, psize);
|
|
o -> type = type;
|
|
if (type -> initialize)
|
|
(*type -> initialize) (o, file, line);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_object_reference (omapi_object_t **r,
|
|
omapi_object_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!",
|
|
file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, h -> type -> rc_flag);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_object_dereference (omapi_object_t **h,
|
|
const char *file, int line)
|
|
{
|
|
int outer_reference = 0;
|
|
int inner_reference = 0;
|
|
int handle_reference = 0;
|
|
int extra_references;
|
|
omapi_object_t *p, *hp;
|
|
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with refcnt of zero!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
/* See if this object's inner object refers to it, but don't
|
|
count this as a reference if we're being asked to free the
|
|
reference from the inner object. */
|
|
if ((*h) -> inner && (*h) -> inner -> outer &&
|
|
h != &((*h) -> inner -> outer))
|
|
inner_reference = 1;
|
|
|
|
/* Ditto for the outer object. */
|
|
if ((*h) -> outer && (*h) -> outer -> inner &&
|
|
h != &((*h) -> outer -> inner))
|
|
outer_reference = 1;
|
|
|
|
/* Ditto for the outer object. The code below assumes that
|
|
the only reason we'd get a dereference from the handle
|
|
table is if this function does it - otherwise we'd have to
|
|
traverse the handle table to find the address where the
|
|
reference is stored and compare against that, and we don't
|
|
want to do that if we can avoid it. */
|
|
if ((*h) -> handle)
|
|
handle_reference = 1;
|
|
|
|
/* If we are getting rid of the last reference other than
|
|
references to inner and outer objects, or from the handle
|
|
table, then we must examine all the objects in either
|
|
direction to see if they hold any non-inner, non-outer,
|
|
non-handle-table references. If not, we need to free the
|
|
entire chain of objects. */
|
|
if ((*h) -> refcnt ==
|
|
inner_reference + outer_reference + handle_reference + 1) {
|
|
if (inner_reference || outer_reference || handle_reference) {
|
|
/* XXX we could check for a reference from the
|
|
handle table here. */
|
|
extra_references = 0;
|
|
for (p = (*h) -> inner;
|
|
p && !extra_references; p = p -> inner) {
|
|
extra_references += p -> refcnt;
|
|
if (p -> inner && p -> inner -> outer == p)
|
|
--extra_references;
|
|
if (p -> outer)
|
|
--extra_references;
|
|
if (p -> handle)
|
|
--extra_references;
|
|
}
|
|
for (p = (*h) -> outer;
|
|
p && !extra_references; p = p -> outer) {
|
|
extra_references += p -> refcnt;
|
|
if (p -> outer && p -> outer -> inner == p)
|
|
--extra_references;
|
|
if (p -> inner)
|
|
--extra_references;
|
|
if (p -> handle)
|
|
--extra_references;
|
|
}
|
|
} else
|
|
extra_references = 0;
|
|
|
|
if (!extra_references) {
|
|
hp = *h;
|
|
*h = 0;
|
|
hp -> refcnt--;
|
|
if (inner_reference)
|
|
omapi_object_dereference
|
|
(&hp -> inner, file, line);
|
|
if (outer_reference)
|
|
omapi_object_dereference
|
|
(&hp -> outer, file, line);
|
|
/* if (!hp -> type -> freer) */
|
|
rc_register (file, line, h, hp,
|
|
0, 1, hp -> type -> rc_flag);
|
|
if (hp -> type -> destroy)
|
|
(*(hp -> type -> destroy)) (hp, file, line);
|
|
if (hp -> type -> freer)
|
|
(hp -> type -> freer (hp, file, line));
|
|
else
|
|
dfree (hp, file, line);
|
|
} else {
|
|
(*h) -> refcnt--;
|
|
/* if (!(*h) -> type -> freer) */
|
|
rc_register (file, line,
|
|
h, *h, (*h) -> refcnt, 1,
|
|
(*h) -> type -> rc_flag);
|
|
}
|
|
} else {
|
|
(*h) -> refcnt--;
|
|
/* if (!(*h) -> type -> freer) */
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1,
|
|
(*h) -> type -> rc_flag);
|
|
}
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_buffer_new (omapi_buffer_t **h,
|
|
const char *file, int line)
|
|
{
|
|
omapi_buffer_t *t;
|
|
isc_result_t status;
|
|
|
|
t = (omapi_buffer_t *)dmalloc (sizeof *t, file, line);
|
|
if (!t)
|
|
return ISC_R_NOMEMORY;
|
|
memset (t, 0, sizeof *t);
|
|
status = omapi_buffer_reference (h, t, file, line);
|
|
if (status != ISC_R_SUCCESS)
|
|
dfree (t, file, line);
|
|
(*h) -> head = sizeof ((*h) -> buf) - 1;
|
|
return status;
|
|
}
|
|
|
|
isc_result_t omapi_buffer_reference (omapi_buffer_t **r,
|
|
omapi_buffer_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!",
|
|
file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, RC_MISC);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_buffer_dereference (omapi_buffer_t **h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with refcnt of zero!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
--(*h) -> refcnt;
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1, RC_MISC);
|
|
if ((*h) -> refcnt == 0)
|
|
dfree (*h, file, line);
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_typed_data_new (const char *file, int line,
|
|
omapi_typed_data_t **t,
|
|
omapi_datatype_t type, ...)
|
|
{
|
|
va_list l;
|
|
omapi_typed_data_t *new;
|
|
unsigned len;
|
|
unsigned val;
|
|
int intval;
|
|
char *s;
|
|
isc_result_t status;
|
|
omapi_object_t *obj;
|
|
|
|
va_start (l, type);
|
|
|
|
switch (type) {
|
|
case omapi_datatype_int:
|
|
len = OMAPI_TYPED_DATA_INT_LEN;
|
|
intval = va_arg (l, int);
|
|
break;
|
|
case omapi_datatype_string:
|
|
s = va_arg (l, char *);
|
|
val = strlen (s);
|
|
len = OMAPI_TYPED_DATA_NOBUFFER_LEN + val;
|
|
break;
|
|
case omapi_datatype_data:
|
|
val = va_arg (l, unsigned);
|
|
len = OMAPI_TYPED_DATA_NOBUFFER_LEN + val;
|
|
break;
|
|
case omapi_datatype_object:
|
|
len = OMAPI_TYPED_DATA_OBJECT_LEN;
|
|
obj = va_arg (l, omapi_object_t *);
|
|
break;
|
|
default:
|
|
va_end (l);
|
|
return ISC_R_INVALIDARG;
|
|
}
|
|
va_end (l);
|
|
|
|
new = dmalloc (len, file, line);
|
|
if (!new)
|
|
return ISC_R_NOMEMORY;
|
|
memset (new, 0, len);
|
|
|
|
switch (type) {
|
|
case omapi_datatype_int:
|
|
new -> u.integer = intval;
|
|
break;
|
|
case omapi_datatype_string:
|
|
memcpy (new -> u.buffer.value, s, val);
|
|
new -> u.buffer.len = val;
|
|
break;
|
|
case omapi_datatype_data:
|
|
new -> u.buffer.len = val;
|
|
break;
|
|
case omapi_datatype_object:
|
|
status = omapi_object_reference (&new -> u.object, obj,
|
|
file, line);
|
|
if (status != ISC_R_SUCCESS) {
|
|
dfree (new, file, line);
|
|
return status;
|
|
}
|
|
break;
|
|
}
|
|
new -> type = type;
|
|
|
|
return omapi_typed_data_reference (t, new, file, line);
|
|
}
|
|
|
|
isc_result_t omapi_typed_data_reference (omapi_typed_data_t **r,
|
|
omapi_typed_data_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, RC_MISC);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_typed_data_dereference (omapi_typed_data_t **h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with refcnt of zero!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
--((*h) -> refcnt);
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1, RC_MISC);
|
|
if ((*h) -> refcnt <= 0 ) {
|
|
switch ((*h) -> type) {
|
|
case omapi_datatype_int:
|
|
case omapi_datatype_string:
|
|
case omapi_datatype_data:
|
|
default:
|
|
break;
|
|
case omapi_datatype_object:
|
|
omapi_object_dereference (&(*h) -> u.object,
|
|
file, line);
|
|
break;
|
|
}
|
|
dfree (*h, file, line);
|
|
}
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_data_string_new (omapi_data_string_t **d, unsigned len,
|
|
const char *file, int line)
|
|
{
|
|
omapi_data_string_t *new;
|
|
|
|
new = dmalloc (OMAPI_DATA_STRING_EMPTY_SIZE + len, file, line);
|
|
if (!new)
|
|
return ISC_R_NOMEMORY;
|
|
memset (new, 0, OMAPI_DATA_STRING_EMPTY_SIZE);
|
|
new -> len = len;
|
|
return omapi_data_string_reference (d, new, file, line);
|
|
}
|
|
|
|
isc_result_t omapi_data_string_reference (omapi_data_string_t **r,
|
|
omapi_data_string_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, RC_MISC);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_data_string_dereference (omapi_data_string_t **h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with refcnt of zero!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
--((*h) -> refcnt);
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1, RC_MISC);
|
|
if ((*h) -> refcnt <= 0 ) {
|
|
dfree (*h, file, line);
|
|
}
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_value_new (omapi_value_t **d,
|
|
const char *file, int line)
|
|
{
|
|
omapi_value_t *new;
|
|
|
|
new = dmalloc (sizeof *new, file, line);
|
|
if (!new)
|
|
return ISC_R_NOMEMORY;
|
|
memset (new, 0, sizeof *new);
|
|
return omapi_value_reference (d, new, file, line);
|
|
}
|
|
|
|
isc_result_t omapi_value_reference (omapi_value_t **r,
|
|
omapi_value_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!",
|
|
file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, RC_MISC);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_value_dereference (omapi_value_t **h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with refcnt of zero!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
--((*h) -> refcnt);
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1, RC_MISC);
|
|
if ((*h) -> refcnt == 0) {
|
|
if ((*h) -> name)
|
|
omapi_data_string_dereference (&(*h) -> name,
|
|
file, line);
|
|
if ((*h) -> value)
|
|
omapi_typed_data_dereference (&(*h) -> value,
|
|
file, line);
|
|
dfree (*h, file, line);
|
|
}
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_addr_list_new (omapi_addr_list_t **d, unsigned count,
|
|
const char *file, int line)
|
|
{
|
|
omapi_addr_list_t *new;
|
|
|
|
new = dmalloc ((count * sizeof (omapi_addr_t)) +
|
|
sizeof (omapi_addr_list_t), file, line);
|
|
if (!new)
|
|
return ISC_R_NOMEMORY;
|
|
memset (new, 0, ((count * sizeof (omapi_addr_t)) +
|
|
sizeof (omapi_addr_list_t)));
|
|
new -> count = count;
|
|
new -> addresses = (omapi_addr_t *)(new + 1);
|
|
return omapi_addr_list_reference (d, new, file, line);
|
|
}
|
|
|
|
isc_result_t omapi_addr_list_reference (omapi_addr_list_t **r,
|
|
omapi_addr_list_t *h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h || !r)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (*r) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): reference store into non-null pointer!",
|
|
file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
*r = h;
|
|
h -> refcnt++;
|
|
rc_register (file, line, r, h, h -> refcnt, 0, RC_MISC);
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|
|
isc_result_t omapi_addr_list_dereference (omapi_addr_list_t **h,
|
|
const char *file, int line)
|
|
{
|
|
if (!h)
|
|
return ISC_R_INVALIDARG;
|
|
|
|
if (!*h) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of null pointer!", file, line);
|
|
abort ();
|
|
#else
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
if ((*h) -> refcnt <= 0) {
|
|
#if defined (POINTER_DEBUG)
|
|
log_error ("%s(%d): dereference of pointer with zero refcnt!",
|
|
file, line);
|
|
#if defined (DEBUG_RC_HISTORY)
|
|
dump_rc_history (*h);
|
|
#endif
|
|
abort ();
|
|
#else
|
|
*h = 0;
|
|
return ISC_R_INVALIDARG;
|
|
#endif
|
|
}
|
|
|
|
--((*h) -> refcnt);
|
|
rc_register (file, line, h, *h, (*h) -> refcnt, 1, RC_MISC);
|
|
if ((*h) -> refcnt <= 0 ) {
|
|
dfree (*h, file, line);
|
|
}
|
|
*h = 0;
|
|
return ISC_R_SUCCESS;
|
|
}
|
|
|