53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include <stddef.h>
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#include <string.h>
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size_t guac_strlcpy(char* restrict dest, const char* restrict src, size_t n) {
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#ifdef HAVE_STRLCPY
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return strlcpy(dest, src, n);
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#else
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/* Calculate actual length of desired string */
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size_t length = strlen(src);
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/* Copy nothing if there is no space */
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if (n <= 0)
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return length;
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/* Calculate length of the string which will be copied */
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size_t copy_length = length;
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if (copy_length >= n)
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copy_length = n - 1;
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/* Copy only as much of string as possible, manually adding a null
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* terminator */
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memcpy(dest, src, copy_length);
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dest[copy_length] = '\0';
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/* Return the overall length of the desired string */
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return length;
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#endif
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}
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