OpenDNSSEC-enforcer  1.4.8.2
memory.c
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1 /*
2  * Copyright (c) 2008-2009 Nominet UK. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  * notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  * notice, this list of conditions and the following disclaimer in the
11  * documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
19  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
21  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
23  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  */
26 
27 /*+
28  * Filename: memory.c
29  *
30  * Description:
31  * Wrappers around memory allocation routines. If any fail,
32  * the program will write a memory exhaustion error to stderr
33  * and terminate.
34 -*/
35 
36 #include <stdio.h>
37 #include <stdlib.h>
38 
39 #include "ksm/memory.h"
40 #include "ksm/ksmdef.h"
41 #include "ksm/message.h"
42 
43 /*+
44  * MemMalloc - Allocate Memory
45  * MemCalloc - Allocate Contiguous Memory
46  * MemRealloc - Reallocate Memory
47  *
48  * Description:
49  * Wrapper routines around the Unix memory allocation routines. If
50  * an allocation routine returns null, an error is logged and the
51  * program exits.
52  *
53  * MemFree is also defined, but as a macro to allow the passed element
54  * to be zeroed. The definition can be found in the header file.
55 -*/
56 
57 void* MemMalloc(size_t size)
58 {
59  void *ptr = malloc(size);
60  if (ptr == NULL) {
61  MsgLog(KSM_STMTALLOC, "malloc: Out of swap space");
62  fprintf(stderr, "malloc: Out of swap space");
63  exit(1);
64  }
65  return ptr;
66 }
67 
68 void* MemCalloc(size_t nmemb, size_t size)
69 {
70  void *ptr = calloc(nmemb, size);
71  if (ptr == NULL) {
72  MsgLog(KSM_STMTALLOC, "calloc: Out of swap space");
73  fprintf(stderr, "calloc: Out of swap space");
74  exit(1);
75  }
76  return ptr;
77 }
78 
79 void* MemRealloc(void *ptr, size_t size)
80 {
81  void *ptr1 = realloc(ptr, size);
82  if (ptr1 == NULL) {
83  MsgLog(KSM_STMTALLOC, "realloc: Out of swap space");
84  fprintf(stderr, "realloc: Out of swap space");
85  exit(1);
86  }
87  return ptr1;
88 }
int MsgLog(int status,...)
Definition: message.c:335
void * MemRealloc(void *ptr, size_t size)
Definition: memory.c:79
#define KSM_STMTALLOC
Definition: ksmdef.h:77
void * MemCalloc(size_t nmemb, size_t size)
Definition: memory.c:68
void * MemMalloc(size_t size)
Definition: memory.c:57