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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsCRT_h___
#define nsCRT_h___
#include <stdlib.h>
#include <ctype.h>
#include "plstr.h"
#include "nscore.h"
#include "nsCRTGlue.h"
#if defined(XP_WIN)
# define NS_LINEBREAK "\015\012"
# define NS_ULINEBREAK u"\015\012"
# define NS_LINEBREAK_LEN 2
#else
# ifdef XP_UNIX
# define NS_LINEBREAK "\012"
# define NS_ULINEBREAK u"\012"
# define NS_LINEBREAK_LEN 1
# endif /* XP_UNIX */
#endif /* XP_WIN */
/// This is a wrapper class around all the C runtime functions.
class nsCRT {
public:
enum {
LF = '\n' /* Line Feed */,
VTAB = '\v' /* Vertical Tab */,
CR = '\r' /* Carriage Return */
};
/// String comparison.
static int32_t strcmp(const char* aStr1, const char* aStr2) {
return int32_t(PL_strcmp(aStr1, aStr2));
}
/// Case-insensitive string comparison.
static int32_t strcasecmp(const char* aStr1, const char* aStr2) {
/* Some functions like `PL_strcasecmp` are reimplementations
* of the their native POSIX counterparts, which breaks libFuzzer.
* For this purpose, we use the natives instead when fuzzing.
*/
#if defined(LIBFUZZER) && defined(LINUX)
return int32_t(::strcasecmp(aStr1, aStr2));
#else
return int32_t(PL_strcasecmp(aStr1, aStr2));
#endif
}
/// Case-insensitive string comparison with length
static int32_t strncasecmp(const char* aStr1, const char* aStr2,
uint32_t aMaxLen) {
#if defined(LIBFUZZER) && defined(LINUX)
int32_t result = int32_t(::strncasecmp(aStr1, aStr2, aMaxLen));
#else
int32_t result = int32_t(PL_strncasecmp(aStr1, aStr2, aMaxLen));
#endif
// Egads. PL_strncasecmp is returning *very* negative numbers.
// Some folks expect -1,0,1, so let's temper its enthusiasm.
if (result < 0) {
result = -1;
}
return result;
}
/// Case-insensitive substring search.
static char* strcasestr(const char* aStr1, const char* aStr2) {
#if defined(LIBFUZZER) && defined(LINUX)
return const_cast<char*>(::strcasestr(aStr1, aStr2));
#else
return PL_strcasestr(aStr1, aStr2);
#endif
}
/**
How to use this fancy (thread-safe) version of strtok:
void main(void) {
printf("%s\n\nTokens:\n", string);
// Establish string and get the first token:
char* newStr;
token = nsCRT::strtok(string, seps, &newStr);
while (token != nullptr) {
// While there are tokens in "string"
printf(" %s\n", token);
// Get next token:
token = nsCRT::strtok(newStr, seps, &newStr);
}
}
* WARNING - STRTOK WHACKS str THE FIRST TIME IT IS CALLED *
* MAKE A COPY OF str IF YOU NEED TO USE IT AFTER strtok() *
*/
static char* strtok(char* aStr, const char* aDelims, char** aNewStr);
/// Like strcmp except for ucs2 strings
static int32_t strcmp(const char16_t* aStr1, const char16_t* aStr2);
// String to longlong
static int64_t atoll(const char* aStr);
static char ToUpper(char aChar) { return NS_ToUpper(aChar); }
static char ToLower(char aChar) { return NS_ToLower(aChar); }
static bool IsAsciiSpace(char16_t aChar) {
return NS_IsAsciiWhitespace(aChar);
}
};
inline bool NS_IS_SPACE(char16_t aChar) {
return ((int(aChar) & 0x7f) == int(aChar)) && isspace(int(aChar));
}
#endif /* nsCRT_h___ */
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