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/* vi: set sw=4 ts=4: */
/*
* Utility routines.
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
/* Like strncpy but make sure the resulting string is always 0 terminated. */
char* FAST_FUNC safe_strncpy(char *dst, const char *src, size_t size)
{
if (!size) return dst;
dst[--size] = '\0';
return strncpy(dst, src, size);
}
/* Like strcpy but can copy overlapping strings. */
void FAST_FUNC overlapping_strcpy(char *dst, const char *src)
{
/* Cheap optimization for dst == src case -
* better to have it here than in many callers.
*/
if (dst != src) {
while ((*dst = *src) != '\0') {
dst++;
src++;
}
}
}
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