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/*
* Replacement for a missing strlcpy.
*
* Provides the same functionality as the *BSD function strlcpy, originally
* developed by Todd Miller and Theo de Raadt. strlcpy works similarly to
* strncpy, except saner and simpler. The result is always nul-terminated
* even if the source string is longer than the destination string, and the
* total space required is returned. The destination string is not nul-filled
* like strncpy does, just nul-terminated.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
*
* The authors hereby relinquish any claim to any copyright that they may have
* in this work, whether granted under contract or by operation of law or
* international treaty, and hereby commit to the public, at large, that they
* shall not, at any time in the future, seek to enforce any copyright in this
* work against any person or entity, or prevent any person or entity from
* copying, publishing, distributing or creating derivative works of this
* work.
*/
#include <config.h>
#include <portable/system.h>
/*
* If we're running the test suite, rename strlcpy to avoid conflicts with
* the system version.
*/
#if TESTING
# define strlcpy test_strlcpy
size_t test_strlcpy(char *, const char *, size_t);
#endif
size_t
strlcpy(char *dst, const char *src, size_t size)
{
size_t length, copy;
length = strlen(src);
if (size > 0) {
copy = (length >= size) ? size - 1 : length;
memcpy(dst, src, copy);
dst[copy] = '\0';
}
return length;
}
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