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/*
* Copyright (C) 2002 Nikos Mavroyanopoulos
*
* This file is part of LIBASN1.
*
* The LIBTASN1 library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <int.h>
/* These function are like strcat, strcpy. They only
* do bounds checking (they shouldn't cause buffer overruns),
* and they always produce null terminated strings.
*
* They should be used only with null terminated strings.
*/
void _asn1_str_cat( char* dest, size_t dest_tot_size, const char* src) {
size_t str_size = strlen(src);
size_t dest_size = strlen(dest);
if ( dest_tot_size - dest_size > str_size) {
strcat( dest, src);
} else {
if ( dest_tot_size - dest_size > 0) {
strncat( dest, src, (dest_tot_size - dest_size) -1);
dest[dest_tot_size-1] = 0;
}
}
}
void _asn1_str_cpy( char* dest, size_t dest_tot_size, const char* src) {
size_t str_size = strlen(src);
if ( dest_tot_size > str_size) {
strcpy( dest, src);
} else {
if ( dest_tot_size > 0) {
strncpy( dest, src, (dest_tot_size) -1);
dest[dest_tot_size-1] = 0;
}
}
}
void _asn1_mem_cpy( char* dest, size_t dest_tot_size, const char* src, size_t src_size)
{
if ( dest_tot_size >= src_size) {
memcpy( dest, src, src_size);
} else {
if ( dest_tot_size > 0) {
memcpy( dest, src, dest_tot_size);
}
}
}
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