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/*
* Oracle Linux DTrace.
* Copyright (c) 2008, 2020, Oracle and/or its affiliates. All rights reserved.
* Licensed under the Universal Permissive License v 1.0 as shown at
* http://oss.oracle.com/licenses/upl.
*/
#include <string.h>
#include <sys/types.h>
/*
* Appends src to the dstsize buffer at dst. The append will never
* overflow the destination buffer and the buffer will always be null
* terminated. Never reference beyond &dst[dstsize-1] when computing
* the length of the pre-existing string.
*/
size_t
strlcat(char *dst, const char *src, size_t dstsize)
{
char *df = dst;
size_t left = dstsize;
size_t l1;
size_t l2 = strlen(src);
size_t copied;
while (left-- != 0 && *df != '\0')
df++;
l1 = df - dst;
if (dstsize == l1)
return l1 + l2;
copied = l1 + l2 >= dstsize ? dstsize - l1 - 1 : l2;
memcpy(dst + l1, src, copied);
dst[l1+copied] = '\0';
return l1 + l2;
}
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