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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /xpcom/base/nsCRTGlue.cpp | |
parent | Initial commit. (diff) | |
download | firefox-upstream/124.0.1.tar.xz firefox-upstream/124.0.1.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'xpcom/base/nsCRTGlue.cpp')
-rw-r--r-- | xpcom/base/nsCRTGlue.cpp | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/xpcom/base/nsCRTGlue.cpp b/xpcom/base/nsCRTGlue.cpp new file mode 100644 index 0000000000..99289daa63 --- /dev/null +++ b/xpcom/base/nsCRTGlue.cpp @@ -0,0 +1,226 @@ +/* -*- 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> +#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 |