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-rw-r--r--xpcom/base/nsCRTGlue.cpp328
1 files changed, 328 insertions, 0 deletions
diff --git a/xpcom/base/nsCRTGlue.cpp b/xpcom/base/nsCRTGlue.cpp
new file mode 100644
index 0000000000..925379f716
--- /dev/null
+++ b/xpcom/base/nsCRTGlue.cpp
@@ -0,0 +1,328 @@
+/* -*- 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
+
+#ifdef FUZZING_SNAPSHOT
+# include <mozilla/fuzzing/NyxWrapper.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
+
+#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;
+ va_copy(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);
+}
+#elif defined(FUZZING_SNAPSHOT)
+void vprintf_stderr(const char* aFmt, va_list aArgs) {
+ if (nyx_puts) {
+ auto msgbuf = mozilla::Vsmprintf(aFmt, aArgs);
+ nyx_puts(msgbuf.get());
+ } else {
+ vfprintf(stderr, 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());
+ }
+}