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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/. */
#include "nsCRTGlue.h"
#include "nsXPCOM.h"
#include "nsDebug.h"
#include "prtime.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>
#include "mozilla/Sprintf.h"
#ifdef XP_WIN
# include <io.h>
# include <windows.h>
# include "mozilla/LateWriteChecks.h"
# include "mozilla/UniquePtr.h"
#endif
#ifdef ANDROID
# include <android/log.h>
#endif
using namespace mozilla;
const char* NS_strspnp(const char* aDelims, const char* aStr) {
const char* d;
do {
for (d = aDelims; *d != '\0'; ++d) {
if (*aStr == *d) {
++aStr;
break;
}
}
} while (*d);
return aStr;
}
char* NS_strtok(const char* aDelims, char** aStr) {
if (!*aStr) {
return nullptr;
}
char* ret = (char*)NS_strspnp(aDelims, *aStr);
if (!*ret) {
*aStr = ret;
return nullptr;
}
char* i = ret;
do {
for (const char* d = aDelims; *d != '\0'; ++d) {
if (*i == *d) {
*i = '\0';
*aStr = ++i;
return ret;
}
}
++i;
} while (*i);
*aStr = nullptr;
return ret;
}
uint32_t NS_strlen(const char16_t* aString) {
MOZ_ASSERT(aString);
const char16_t* end;
for (end = aString; *end; ++end) {
// empty loop
}
return end - aString;
}
int NS_strcmp(const char16_t* aStrA, const char16_t* aStrB) {
while (*aStrB) {
int r = *aStrA - *aStrB;
if (r) {
return r;
}
++aStrA;
++aStrB;
}
return *aStrA != '\0';
}
int NS_strncmp(const char16_t* aStrA, const char16_t* aStrB, size_t aLen) {
while (aLen && *aStrB) {
int r = *aStrA - *aStrB;
if (r) {
return r;
}
++aStrA;
++aStrB;
--aLen;
}
return aLen ? *aStrA != '\0' : 0;
}
char16_t* NS_xstrdup(const char16_t* aString) {
uint32_t len = NS_strlen(aString);
return NS_xstrndup(aString, len);
}
template <typename CharT>
CharT* NS_xstrndup(const CharT* aString, uint32_t aLen) {
auto newBuf = (CharT*)moz_xmalloc((aLen + 1) * sizeof(CharT));
memcpy(newBuf, aString, aLen * sizeof(CharT));
newBuf[aLen] = '\0';
return newBuf;
}
template char16_t* NS_xstrndup<char16_t>(const char16_t* aString,
uint32_t aLen);
template char* NS_xstrndup<char>(const char* aString, uint32_t aLen);
char* NS_xstrdup(const char* aString) {
uint32_t len = strlen(aString);
char* str = (char*)moz_xmalloc(len + 1);
memcpy(str, aString, len);
str[len] = '\0';
return str;
}
// clang-format off
// This table maps uppercase characters to lower case characters;
// characters that are neither upper nor lower case are unaffected.
const unsigned char nsLowerUpperUtils::kUpper2Lower[256] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64,
// upper band mapped to lower [A-Z] => [a-z]
97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,
91, 92, 93, 94, 95,
96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
const unsigned char nsLowerUpperUtils::kLower2Upper[256] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96,
// lower band mapped to upper [a-z] => [A-Z]
65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
// clang-format on
bool NS_IsUpper(char aChar) {
return aChar != (char)nsLowerUpperUtils::kUpper2Lower[(unsigned char)aChar];
}
bool NS_IsLower(char aChar) {
return aChar != (char)nsLowerUpperUtils::kLower2Upper[(unsigned char)aChar];
}
#ifndef XPCOM_GLUE_AVOID_NSPR
void NS_MakeRandomString(char* aBuf, int32_t aBufLen) {
# define TABLE_SIZE 36
static const char table[] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0',
'1', '2', '3', '4', '5', '6', '7', '8', '9'};
// turn PR_Now() into milliseconds since epoch
// and salt rand with that.
static unsigned int seed = 0;
if (seed == 0) {
double fpTime = double(PR_Now());
seed =
(unsigned int)(fpTime * 1e-6 + 0.5); // use 1e-6, granularity of
// PR_Now() on the mac is seconds
srand(seed);
}
int32_t i;
for (i = 0; i < aBufLen; ++i) {
*aBuf++ = table[rand() % TABLE_SIZE];
}
*aBuf = 0;
}
#endif
#ifdef HAVE_VA_COPY
# define VARARGS_ASSIGN(foo, bar) VA_COPY(foo, bar)
#elif defined(HAVE_VA_LIST_AS_ARRAY)
# define VARARGS_ASSIGN(foo, bar) foo[0] = bar[0]
#else
# define VARARGS_ASSIGN(foo, bar) (foo) = (bar)
#endif
#if defined(XP_WIN)
void vprintf_stderr(const char* aFmt, va_list aArgs) {
if (IsDebuggerPresent()) {
int lengthNeeded = _vscprintf(aFmt, aArgs);
if (lengthNeeded) {
lengthNeeded++;
auto buf = MakeUnique<char[]>(lengthNeeded);
if (buf) {
va_list argsCpy;
VARARGS_ASSIGN(argsCpy, aArgs);
vsnprintf(buf.get(), lengthNeeded, aFmt, argsCpy);
buf[lengthNeeded - 1] = '\0';
va_end(argsCpy);
OutputDebugStringA(buf.get());
}
}
}
// stderr is unbuffered by default so we open a new FILE (which is buffered)
// so that calls to printf_stderr are not as likely to get mixed together.
int fd = _fileno(stderr);
if (fd == -2) {
return;
}
FILE* fp = _fdopen(_dup(fd), "a");
if (!fp) {
return;
}
vfprintf(fp, aFmt, aArgs);
AutoSuspendLateWriteChecks suspend;
fclose(fp);
}
#elif defined(ANDROID)
void vprintf_stderr(const char* aFmt, va_list aArgs) {
__android_log_vprint(ANDROID_LOG_INFO, "Gecko", aFmt, aArgs);
}
#else
void vprintf_stderr(const char* aFmt, va_list aArgs) {
vfprintf(stderr, aFmt, aArgs);
}
#endif
void printf_stderr(const char* aFmt, ...) {
va_list args;
va_start(args, aFmt);
vprintf_stderr(aFmt, args);
va_end(args);
}
void fprintf_stderr(FILE* aFile, const char* aFmt, ...) {
va_list args;
va_start(args, aFmt);
if (aFile == stderr) {
vprintf_stderr(aFmt, args);
} else {
vfprintf(aFile, aFmt, args);
}
va_end(args);
}
void print_stderr(std::stringstream& aStr) {
#if defined(ANDROID)
// On Android logcat output is truncated to 1024 chars per line, and
// we usually use std::stringstream to build up giant multi-line gobs
// of output. So to avoid the truncation we find the newlines and
// print the lines individually.
std::string line;
while (std::getline(aStr, line)) {
printf_stderr("%s\n", line.c_str());
}
#else
printf_stderr("%s", aStr.str().c_str());
#endif
}
void fprint_stderr(FILE* aFile, std::stringstream& aStr) {
if (aFile == stderr) {
print_stderr(aStr);
} else {
fprintf_stderr(aFile, "%s", aStr.str().c_str());
}
}