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/* $Id$ */

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#include "stdafx.h"

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#include "string.h"

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#include <stdarg.h>

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void ttd_strlcat(char *dst, const char *src, size_t size)

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{

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	assert(size > 0);

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	for (; size > 0 && *dst != '\0'; --size, ++dst) {}

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	assert(size > 0);

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	while (--size > 0 && *src != '\0') *dst++ = *src++;

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	*dst = '\0';

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}

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void ttd_strlcpy(char *dst, const char *src, size_t size)

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{

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	assert(size > 0);

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	while (--size > 0 && *src != '\0') *dst++ = *src++;

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	*dst = '\0';

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}

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char* strecat(char* dst, const char* src, const char* last)

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{

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	assert(last == NULL || dst <= last);

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	for (; *dst != '\0'; ++dst)

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		if (dst == last) return dst;

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	for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;

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	*dst = '\0';

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	return strecpy(dst, src, last);

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}

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char* strecpy(char* dst, const char* src, const char* last)

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{

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	assert(last == NULL || dst <= last);

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	for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;

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	*dst = '\0';

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	return dst;

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}

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char* CDECL str_fmt(const char* str, ...)

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{

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	char buf[4096];

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	va_list va;

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	int len;

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	char* p;

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	va_start(va, str);

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	len = vsprintf(buf, str, va);

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	va_end(va);

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	p = malloc(len + 1);

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	if (p != NULL) memcpy(p, buf, len + 1);

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	return p;

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}

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void str_validate(char *str)

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{

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	for (; *str != '\0'; str++)

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		if (!IsValidAsciiChar(*str)) *str = '?';

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}