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/*
* Copyright (c) 2018 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <assert.h>
#include "opal/util/string_copy.h"
void opal_string_copy(char *dest, const char *src, size_t dest_len)
{
size_t i;
char *new_dest = dest;
// Open MPI does not do *giant* string copies. Hence, we use the
// heuristic: if "dest_len" is too large, this is a programmer
// error. We pseudo-arbitrarily pick a large value to be the max
// allowable dest_len: 128K. If we ever need to increase this
// value someday (because something has a legit reason to
// opal_string_copy() more than 128K), the core dumps that are
// generated by the assert() failure should make this fairly
// obvious.
assert(dest_len <= OPAL_MAX_SIZE_ALLOWED_BY_OPAL_STRING_COPY);
for (i = 0; i < dest_len; ++i, ++src, ++new_dest) {
*new_dest = *src;
if ('\0' == *src) {
return;
}
}
dest[i - 1] = '\0';
}
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