mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
39 lines
928 B
C
39 lines
928 B
C
/* xmemdup.c -- Duplicate a memory buffer, using xcalloc.
|
|
This trivial function is in the public domain.
|
|
Jeff Garzik, September 1999. */
|
|
|
|
/*
|
|
|
|
@deftypefn Replacement void* xmemdup (void *@var{input}, size_t @var{copy_size}, size_t @var{alloc_size})
|
|
|
|
Duplicates a region of memory without fail. First, @var{alloc_size} bytes
|
|
are allocated, then @var{copy_size} bytes from @var{input} are copied into
|
|
it, and the new memory is returned. If fewer bytes are copied than were
|
|
allocated, the remaining memory is zeroed.
|
|
|
|
@end deftypefn
|
|
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#include "ansidecl.h"
|
|
#include "libiberty.h"
|
|
|
|
#include <sys/types.h> /* For size_t. */
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif
|
|
|
|
PTR
|
|
xmemdup (input, copy_size, alloc_size)
|
|
const PTR input;
|
|
size_t copy_size;
|
|
size_t alloc_size;
|
|
{
|
|
PTR output = xcalloc (1, alloc_size);
|
|
memcpy (output, input, copy_size);
|
|
return output;
|
|
}
|