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17e2377a PB |
1 | /* |
2 | * malloc-like functions for system emulation. | |
3 | * | |
4 | * Copyright (c) 2006 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "qemu-common.h" | |
25 | ||
26 | void *get_mmap_addr(unsigned long size) | |
27 | { | |
28 | return NULL; | |
29 | } | |
30 | ||
31 | void qemu_free(void *ptr) | |
32 | { | |
33 | free(ptr); | |
34 | } | |
35 | ||
36 | void *qemu_malloc(size_t size) | |
37 | { | |
38 | return malloc(size); | |
39 | } | |
40 | ||
2137b4cc TS |
41 | void *qemu_realloc(void *ptr, size_t size) |
42 | { | |
43 | return realloc(ptr, size); | |
44 | } | |
45 | ||
17e2377a PB |
46 | void *qemu_mallocz(size_t size) |
47 | { | |
48 | void *ptr; | |
49 | ptr = qemu_malloc(size); | |
50 | if (!ptr) | |
51 | return NULL; | |
52 | memset(ptr, 0, size); | |
53 | return ptr; | |
54 | } | |
55 | ||
56 | char *qemu_strdup(const char *str) | |
57 | { | |
58 | char *ptr; | |
363a37d5 BS |
59 | size_t len = strlen(str); |
60 | ptr = qemu_malloc(len + 1); | |
17e2377a PB |
61 | if (!ptr) |
62 | return NULL; | |
ac4b0d0c | 63 | memcpy(ptr, str, len + 1); |
17e2377a PB |
64 | return ptr; |
65 | } | |
ac4b0d0c AZ |
66 | |
67 | char *qemu_strndup(const char *str, size_t size) | |
68 | { | |
69 | const char *end = memchr(str, 0, size); | |
70 | char *new; | |
71 | ||
72 | if (end) | |
73 | size = end - str; | |
74 | ||
75 | new = qemu_malloc(size + 1); | |
76 | new[size] = 0; | |
77 | ||
78 | return memcpy(new, str, size); | |
79 | } |