/* -*- 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/UniquePtr.h" #endif #ifdef ANDROID #include <android/log.h> #include <unistd.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' : *aStrA - *aStrB; } char16_t* NS_strdup(const char16_t* aString) { uint32_t len = NS_strlen(aString); return NS_strndup(aString, len); } template<typename CharT> CharT* NS_strndup(const CharT* aString, uint32_t aLen) { auto newBuf = (CharT*)NS_Alloc((aLen + 1) * sizeof(CharT)); if (newBuf) { memcpy(newBuf, aString, aLen * sizeof(CharT)); newBuf[aLen] = '\0'; } return newBuf; } template char16_t* NS_strndup<char16_t>(const char16_t* aString, uint32_t aLen); template char* NS_strndup<char>(const char* aString, uint32_t aLen); char* NS_strdup(const char* aString) { uint32_t len = strlen(aString); char* str = (char*)NS_Alloc(len + 1); if (str) { memcpy(str, aString, len); str[len] = '\0'; } return str; } // 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 }; 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]; } bool NS_IsAscii(char16_t aChar) { return (0x0080 > aChar); } bool NS_IsAscii(const char16_t* aString) { while (*aString) { if (0x0080 <= *aString) { return false; } aString++; } return true; } bool NS_IsAscii(const char* aString) { while (*aString) { if (0x80 & *aString) { return false; } aString++; } return true; } bool NS_IsAscii(const char* aString, uint32_t aLength) { const char* end = aString + aLength; while (aString < end) { if (0x80 & *aString) { return false; } ++aString; } return true; } bool NS_IsAsciiAlpha(char16_t aChar) { return (aChar >= 'A' && aChar <= 'Z') || (aChar >= 'a' && aChar <= 'z'); } bool NS_IsAsciiWhitespace(char16_t aChar) { return aChar == ' ' || aChar == '\r' || aChar == '\n' || aChar == '\t'; } bool NS_IsAsciiDigit(char16_t aChar) { return aChar >= '0' && aChar <= '9'; } #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 static StderrCallback sStderrCallback = nullptr; void set_stderr_callback(StderrCallback aCallback) { sStderrCallback = aCallback; } #if defined(ANDROID) && !defined(RELEASE_OR_BETA) static FILE* sStderrCopy = nullptr; void stderr_to_file(const char* aFmt, va_list aArgs) { vfprintf(sStderrCopy, aFmt, aArgs); } void copy_stderr_to_file(const char* aFile) { if (sStderrCopy) { return; } size_t buflen = strlen(aFile) + 16; char* buf = (char*)malloc(buflen); snprintf(buf, buflen, "%s.%u", aFile, (uint32_t)getpid()); sStderrCopy = fopen(buf, "w"); free(buf); set_stderr_callback(stderr_to_file); } #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 (sStderrCallback) { va_list argsCpy; VARARGS_ASSIGN(argsCpy, aArgs); sStderrCallback(aFmt, aArgs); va_end(argsCpy); } 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()); } } } FILE* fp = _fdopen(_dup(2), "a"); if (!fp) { return; } vfprintf(fp, aFmt, aArgs); fclose(fp); } #elif defined(ANDROID) void vprintf_stderr(const char* aFmt, va_list aArgs) { if (sStderrCallback) { va_list argsCpy; VARARGS_ASSIGN(argsCpy, aArgs); sStderrCallback(aFmt, aArgs); va_end(argsCpy); } __android_log_vprint(ANDROID_LOG_INFO, "Gecko", aFmt, aArgs); } #else void vprintf_stderr(const char* aFmt, va_list aArgs) { if (sStderrCallback) { va_list argsCpy; VARARGS_ASSIGN(argsCpy, aArgs); sStderrCallback(aFmt, aArgs); va_end(argsCpy); } 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); }