init_sysdeps.c

来自「ALSA驱动的一些调试测试工具」· C语言 代码 · 共 64 行

/*
 * Copyright (C) 2003 Greg Kroah-Hartman <[e-mail]>
 * Copyright (C) 2005-2006 Kay Sievers <[e-mail]>
 *
 *	This program is free software; you can redistribute it and/or modify it
 *	under the terms of the GNU General Public License as published by the
 *	Free Software Foundation version 2 of the License.
 * 
 *	This program is distributed in the hope that it will be useful, but
 *	WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *	General Public License for more details.
 * 
 *	You should have received a copy of the GNU General Public License along
 *	with this program; if not, write to the Free Software Foundation, Inc.,
 *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#if defined(__GLIBC__) && !(defined(__UCLIBC__) && defined(__USE_BSD))
static size_t strlcpy(char *dst, const char *src, size_t size)
{
	size_t bytes = 0;
	char *q = dst;
	const char *p = src;
	char ch;

	while ((ch = *p++)) {
		if (bytes+1 < size)
			*q++ = ch;
		bytes++;
	}

	/* If size == 0 there is no space for a final null... */
	if (size)
		*q = '\0';
	return bytes;
}

static size_t strlcat(char *dst, const char *src, size_t size)
{
	size_t bytes = 0;
	char *q = dst;
	const char *p = src;
	char ch;

	while (bytes < size && *q) {
		q++;
		bytes++;
	}
	if (bytes == size)
		return (bytes + strlen(src));

	while ((ch = *p++)) {
		if (bytes+1 < size)
		*q++ = ch;
		bytes++;
	}

	*q = '\0';
	return bytes;
}
#endif /* __GLIBC__ */