projects/gcc/platform_compiler.c

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.

#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "platform_api.h"


/**
 * GCC implementation for the strdup function.
 *
 * @param s The string to duplicate.
 *
 * @return The newly allocated copy of the string or null.
 */
char* strdup (const char *s)
{
	char *str = NULL;

	if (s != NULL) {
		str = platform_malloc (strlen (s) + 1);
		if (str != NULL) {
			strcpy (str, s);
		}
	}

	return str;
}

/**
 * GCC implementation for the strnlen function.
 *
 * @param s The string to determine the length of.
 * @param maxLen The maximum number of bytes in the string to count.
 *
 * @return The length of the string or maxLen if there is no NULL byte in the string.
 */
size_t strnlen (const char *s, size_t maxLen)
{
	size_t length = 0;

	if (s != NULL) {
		while ((*s != '\0') && (length < maxLen)) {
			length++;
			s++;
		}
	}

	return length;
}