46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* This software may be distributed and modified according to the terms of
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* the GNU General Public License version 2. Note that NO WARRANTY is provided.
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* See "LICENSE_GPLv2.txt" for details.
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*
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* @TAG(GD_GPL)
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*/
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#include <config.h>
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#include <assert.h>
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#include <string.h>
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word_t strnlen(const char *s, word_t maxlen)
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{
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word_t len;
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for (len = 0; len < maxlen && s[len]; len++);
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return len;
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}
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word_t strlcpy(char *dest, const char *src, word_t size)
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{
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word_t len;
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for (len = 0; len + 1 < size && src[len]; len++) {
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dest[len] = src[len];
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}
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dest[len] = '\0';
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return len;
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}
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word_t strlcat(char *dest, const char *src, word_t size)
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{
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word_t len;
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/* get to the end of dest */
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for (len = 0; len < size && dest[len]; len++);
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/* check that dest was at least 'size' length to prevent inserting
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* a null byte when we shouldn't */
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if (len < size) {
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for (; len + 1 < size && *src; len++, src++) {
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dest[len] = *src;
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}
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dest[len] = '\0';
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}
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return len;
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}
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