xref: /freebsd/contrib/ldns/compat/realloc.c (revision ca987d4641cdcd7f27e153db17c5bf064934faf5)
1 /* Just a replacement, if the original malloc is not
2    GNU-compliant. Based on malloc.c */
3 
4 #if HAVE_CONFIG_H
5 #include <ldns/config.h>
6 #endif
7 #undef realloc
8 
9 #include <sys/types.h>
10 
11 void *realloc (void*, size_t);
12 void *malloc (size_t);
13 
14 /* Changes allocation to new sizes, copies over old data.
15  * if oldptr is NULL, does a malloc.
16  * if size is zero, allocate 1-byte block....
17  *   (does not return NULL and free block)
18  */
19 
20 void *
21 rpl_realloc (void* ptr, size_t n)
22 {
23   if (n == 0)
24     n = 1;
25   if(ptr == 0) {
26     return malloc(n);
27   }
28   return realloc(ptr, n);
29 }
30 
31