1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/xre/MacQuirks.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,256 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +
1.10 +#ifndef MacQuirks_h__
1.11 +#define MacQuirks_h__
1.12 +
1.13 +#include <sys/types.h>
1.14 +#include <sys/sysctl.h>
1.15 +#include "CoreFoundation/CoreFoundation.h"
1.16 +#include "CoreServices/CoreServices.h"
1.17 +#include "Carbon/Carbon.h"
1.18 +
1.19 +// This file is a copy and paste from existing methods from
1.20 +// libxul. This is intentional because this interpose
1.21 +// library does not link with libxul.
1.22 +
1.23 +struct VersionPart {
1.24 + int32_t numA;
1.25 +
1.26 + const char *strB; // NOT null-terminated, can be a null pointer
1.27 + uint32_t strBlen;
1.28 +
1.29 + int32_t numC;
1.30 +
1.31 + char *extraD; // null-terminated
1.32 +};
1.33 +
1.34 +/**
1.35 + * Parse a version part into a number and "extra text".
1.36 + *
1.37 + * @returns A pointer to the next versionpart, or null if none.
1.38 + */
1.39 +static char*
1.40 +ParseVP(char *part, VersionPart &result)
1.41 +{
1.42 + char *dot;
1.43 +
1.44 + result.numA = 0;
1.45 + result.strB = nullptr;
1.46 + result.strBlen = 0;
1.47 + result.numC = 0;
1.48 + result.extraD = nullptr;
1.49 +
1.50 + if (!part)
1.51 + return part;
1.52 +
1.53 + dot = strchr(part, '.');
1.54 + if (dot)
1.55 + *dot = '\0';
1.56 +
1.57 + if (part[0] == '*' && part[1] == '\0') {
1.58 + result.numA = INT32_MAX;
1.59 + result.strB = "";
1.60 + }
1.61 + else {
1.62 + result.numA = strtol(part, const_cast<char**>(&result.strB), 10);
1.63 + }
1.64 +
1.65 + if (!*result.strB) {
1.66 + result.strB = nullptr;
1.67 + result.strBlen = 0;
1.68 + }
1.69 + else {
1.70 + if (result.strB[0] == '+') {
1.71 + static const char kPre[] = "pre";
1.72 +
1.73 + ++result.numA;
1.74 + result.strB = kPre;
1.75 + result.strBlen = sizeof(kPre) - 1;
1.76 + }
1.77 + else {
1.78 + const char *numstart = strpbrk(result.strB, "0123456789+-");
1.79 + if (!numstart) {
1.80 + result.strBlen = strlen(result.strB);
1.81 + }
1.82 + else {
1.83 + result.strBlen = numstart - result.strB;
1.84 +
1.85 + result.numC = strtol(numstart, &result.extraD, 10);
1.86 + if (!*result.extraD)
1.87 + result.extraD = nullptr;
1.88 + }
1.89 + }
1.90 + }
1.91 +
1.92 + if (dot) {
1.93 + ++dot;
1.94 +
1.95 + if (!*dot)
1.96 + dot = nullptr;
1.97 + }
1.98 +
1.99 + return dot;
1.100 +}
1.101 +
1.102 +
1.103 +// compare two null-terminated strings, which may be null pointers
1.104 +static int32_t
1.105 +ns_strcmp(const char *str1, const char *str2)
1.106 +{
1.107 + // any string is *before* no string
1.108 + if (!str1)
1.109 + return str2 != 0;
1.110 +
1.111 + if (!str2)
1.112 + return -1;
1.113 +
1.114 + return strcmp(str1, str2);
1.115 +}
1.116 +
1.117 +// compare two length-specified string, which may be null pointers
1.118 +static int32_t
1.119 +ns_strnncmp(const char *str1, uint32_t len1, const char *str2, uint32_t len2)
1.120 +{
1.121 + // any string is *before* no string
1.122 + if (!str1)
1.123 + return str2 != 0;
1.124 +
1.125 + if (!str2)
1.126 + return -1;
1.127 +
1.128 + for (; len1 && len2; --len1, --len2, ++str1, ++str2) {
1.129 + if (*str1 < *str2)
1.130 + return -1;
1.131 +
1.132 + if (*str1 > *str2)
1.133 + return 1;
1.134 + }
1.135 +
1.136 + if (len1 == 0)
1.137 + return len2 == 0 ? 0 : -1;
1.138 +
1.139 + return 1;
1.140 +}
1.141 +
1.142 +// compare two int32_t
1.143 +static int32_t
1.144 +ns_cmp(int32_t n1, int32_t n2)
1.145 +{
1.146 + if (n1 < n2)
1.147 + return -1;
1.148 +
1.149 + return n1 != n2;
1.150 +}
1.151 +
1.152 +/**
1.153 + * Compares two VersionParts
1.154 + */
1.155 +static int32_t
1.156 +CompareVP(VersionPart &v1, VersionPart &v2)
1.157 +{
1.158 + int32_t r = ns_cmp(v1.numA, v2.numA);
1.159 + if (r)
1.160 + return r;
1.161 +
1.162 + r = ns_strnncmp(v1.strB, v1.strBlen, v2.strB, v2.strBlen);
1.163 + if (r)
1.164 + return r;
1.165 +
1.166 + r = ns_cmp(v1.numC, v2.numC);
1.167 + if (r)
1.168 + return r;
1.169 +
1.170 + return ns_strcmp(v1.extraD, v2.extraD);
1.171 +}
1.172 +
1.173 +/* this is intentionally not static so that we don't end up making copies
1.174 + * anywhere */
1.175 +int32_t
1.176 +NS_CompareVersions(const char *A, const char *B)
1.177 +{
1.178 + char *A2 = strdup(A);
1.179 + if (!A2)
1.180 + return 1;
1.181 +
1.182 + char *B2 = strdup(B);
1.183 + if (!B2) {
1.184 + free(A2);
1.185 + return 1;
1.186 + }
1.187 +
1.188 + int32_t result;
1.189 + char *a = A2, *b = B2;
1.190 +
1.191 + do {
1.192 + VersionPart va, vb;
1.193 +
1.194 + a = ParseVP(a, va);
1.195 + b = ParseVP(b, vb);
1.196 +
1.197 + result = CompareVP(va, vb);
1.198 + if (result)
1.199 + break;
1.200 +
1.201 + } while (a || b);
1.202 +
1.203 + free(A2);
1.204 + free(B2);
1.205 +
1.206 + return result;
1.207 +}
1.208 +
1.209 +
1.210 +static void
1.211 +TriggerQuirks()
1.212 +{
1.213 + int mib[2];
1.214 +
1.215 + mib[0] = CTL_KERN;
1.216 + mib[1] = KERN_OSRELEASE;
1.217 + // we won't support versions greater than 10.7.99
1.218 + char release[sizeof("10.7.99")];
1.219 + size_t len = sizeof(release);
1.220 + // sysctl will return ENOMEM if the release string is longer than sizeof(release)
1.221 + int ret = sysctl(mib, 2, release, &len, nullptr, 0);
1.222 + // we only want to trigger this on OS X 10.6, on versions 10.6.8 or newer
1.223 + // Darwin version 10 corresponds to OS X version 10.6, version 11 is 10.7
1.224 + // http://en.wikipedia.org/wiki/Darwin_(operating_system)#Release_history
1.225 + if (ret == 0 && NS_CompareVersions(release, "10.8.0") >= 0 && NS_CompareVersions(release, "11") < 0) {
1.226 + CFBundleRef mainBundle = CFBundleGetMainBundle();
1.227 + if (mainBundle) {
1.228 + CFRetain(mainBundle);
1.229 +
1.230 + CFStringRef bundleID = CFBundleGetIdentifier(mainBundle);
1.231 + if (bundleID) {
1.232 + CFRetain(bundleID);
1.233 +
1.234 + CFMutableDictionaryRef dict = (CFMutableDictionaryRef)CFBundleGetInfoDictionary(mainBundle);
1.235 + CFDictionarySetValue(dict, CFSTR("CFBundleIdentifier"), CFSTR("org.mozilla.firefox"));
1.236 +
1.237 + // Trigger a load of the quirks table for org.mozilla.firefox.
1.238 + // We use different function on 32/64bit because of how the APIs
1.239 + // behave to force a call to GetBugsForOurBundleIDFromCoreservicesd.
1.240 +#ifdef __i386__
1.241 + ProcessSerialNumber psn;
1.242 + ::GetCurrentProcess(&psn);
1.243 +#else
1.244 + SInt32 major;
1.245 + ::Gestalt(gestaltSystemVersionMajor, &major);
1.246 +#endif
1.247 +
1.248 + // restore the original id
1.249 + dict = (CFMutableDictionaryRef)CFBundleGetInfoDictionary(mainBundle);
1.250 + CFDictionarySetValue(dict, CFSTR("CFBundleIdentifier"), bundleID);
1.251 +
1.252 + CFRelease(bundleID);
1.253 + }
1.254 + CFRelease(mainBundle);
1.255 + }
1.256 + }
1.257 +}
1.258 +
1.259 +#endif //MacQuirks_h__
