1 |
|
|
/* $OpenBSD: doalloc.c,v 1.7 2010/01/12 23:22:06 nicm Exp $ */ |
2 |
|
|
|
3 |
|
|
/**************************************************************************** |
4 |
|
|
* Copyright (c) 1998,2000 Free Software Foundation, Inc. * |
5 |
|
|
* * |
6 |
|
|
* Permission is hereby granted, free of charge, to any person obtaining a * |
7 |
|
|
* copy of this software and associated documentation files (the * |
8 |
|
|
* "Software"), to deal in the Software without restriction, including * |
9 |
|
|
* without limitation the rights to use, copy, modify, merge, publish, * |
10 |
|
|
* distribute, distribute with modifications, sublicense, and/or sell * |
11 |
|
|
* copies of the Software, and to permit persons to whom the Software is * |
12 |
|
|
* furnished to do so, subject to the following conditions: * |
13 |
|
|
* * |
14 |
|
|
* The above copyright notice and this permission notice shall be included * |
15 |
|
|
* in all copies or substantial portions of the Software. * |
16 |
|
|
* * |
17 |
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
18 |
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
19 |
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
20 |
|
|
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
21 |
|
|
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
22 |
|
|
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
23 |
|
|
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
24 |
|
|
* * |
25 |
|
|
* Except as contained in this notice, the name(s) of the above copyright * |
26 |
|
|
* holders shall not be used in advertising or otherwise to promote the * |
27 |
|
|
* sale, use or other dealings in this Software without prior written * |
28 |
|
|
* authorization. * |
29 |
|
|
****************************************************************************/ |
30 |
|
|
|
31 |
|
|
/**************************************************************************** |
32 |
|
|
* Author: Thomas E. Dickey <dickey@clark.net> 1998 * |
33 |
|
|
****************************************************************************/ |
34 |
|
|
|
35 |
|
|
/* |
36 |
|
|
* Wrapper for malloc/realloc. Standard implementations allow realloc with |
37 |
|
|
* a null pointer, but older libraries may not (e.g., SunOS). |
38 |
|
|
* |
39 |
|
|
* Also if realloc fails, we discard the old memory to avoid leaks. |
40 |
|
|
*/ |
41 |
|
|
|
42 |
|
|
#include <curses.priv.h> |
43 |
|
|
|
44 |
|
|
MODULE_ID("$Id: doalloc.c,v 1.7 2010/01/12 23:22:06 nicm Exp $") |
45 |
|
|
|
46 |
|
|
NCURSES_EXPORT(void *) |
47 |
|
|
_nc_doalloc(void *oldp, size_t amount) |
48 |
|
|
{ |
49 |
|
|
void *newp; |
50 |
|
|
|
51 |
✓✓ |
2120 |
if (oldp != 0) { |
52 |
✗✓ |
738 |
if ((newp = realloc(oldp, amount)) == 0) { |
53 |
|
|
free(oldp); |
54 |
|
|
errno = ENOMEM; /* just in case 'free' reset */ |
55 |
|
|
} |
56 |
|
|
} else { |
57 |
|
322 |
newp = malloc(amount); |
58 |
|
|
} |
59 |
|
1060 |
return newp; |
60 |
|
|
} |
61 |
|
|
|
62 |
|
|
#if !HAVE_STRDUP |
63 |
|
|
NCURSES_EXPORT(char *) |
64 |
|
|
_nc_strdup(const char *src) |
65 |
|
|
{ |
66 |
|
|
char *dst; |
67 |
|
|
size_t dsize; |
68 |
|
|
if (src != 0) { |
69 |
|
|
dsize = strlen(src) + 1; |
70 |
|
|
dst = typeMalloc(char, strlen(src) + 1); |
71 |
|
|
if (dst != 0) { |
72 |
|
|
(void) strlcpy(dst, src, dsize); |
73 |
|
|
} |
74 |
|
|
} else { |
75 |
|
|
dst = 0; |
76 |
|
|
} |
77 |
|
|
return dst; |
78 |
|
|
} |
79 |
|
|
#endif |