The Tor Browser: xpcom/reflect/xptcall/src/md/unix/xptcstubs

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

     2 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     3  *

     4  * This Source Code Form is subject to the terms of the Mozilla Public

     5  * License, v. 2.0. If a copy of the MPL was not distributed with this

     6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     9 #include "xptcprivate.h"

    10 #include "xptiprivate.h"

    12 #include <stddef.h>

    13 #include <stdlib.h>

    14 #include <stdint.h>

    16 // "This code is for IA64 only"

    18 /* Implement shared vtbl methods. */

    20 extern "C" nsresult ATTRIBUTE_USED

    21 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex,

    22   uint64_t* intargs, uint64_t* floatargs, uint64_t* restargs)

    23 {

    25 #define PARAM_BUFFER_COUNT     16

    27   nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];

    28   nsXPTCMiniVariant* dispatchParams = nullptr;

    29   const nsXPTMethodInfo* info;

    30   nsresult result = NS_ERROR_FAILURE;

    31   uint64_t* iargs = intargs;

    32   uint64_t* fargs = floatargs;

    33   uint8_t paramCount;

    34   uint8_t i;

    36   NS_ASSERTION(self,"no self");

    38   self->mEntry->GetMethodInfo(uint16_t(methodIndex), &info);

    39   NS_ASSERTION(info,"no method info");

    40   if (! info)

    41       return NS_ERROR_UNEXPECTED;

    43   paramCount = info->GetParamCount();

    45   // setup variant array pointer

    46   if(paramCount > PARAM_BUFFER_COUNT)

    47     dispatchParams = new nsXPTCMiniVariant[paramCount];

    48   else

    49     dispatchParams = paramBuffer;

    50   NS_ASSERTION(dispatchParams,"no place for params");

    51   if (! dispatchParams)

    52       return NS_ERROR_OUT_OF_MEMORY;

    54   for(i = 0; i < paramCount; ++i)

    55   {

    56     int isfloat = 0;

    57     const nsXPTParamInfo& param = info->GetParam(i);

    58     const nsXPTType& type = param.GetType();

    59     nsXPTCMiniVariant* dp = &dispatchParams[i];

    61     if(param.IsOut() || !type.IsArithmetic())

    62     {

    63 #ifdef __LP64__

    64         /* 64 bit pointer mode */

    65         dp->val.p = (void*) *iargs;

    66 #else

    67         /* 32 bit pointer mode */

    68         uint32_t* adr = (uint32_t*) iargs;

    69         dp->val.p = (void*) (*(adr+1));

    70 #endif

    71     }

    72     else

    73     switch(type)

    74     {

    75     case nsXPTType::T_I8     : dp->val.i8  = *(iargs); break;

    76     case nsXPTType::T_I16    : dp->val.i16 = *(iargs); break;

    77     case nsXPTType::T_I32    : dp->val.i32 = *(iargs); break;

    78     case nsXPTType::T_I64    : dp->val.i64 = *(iargs); break;

    79     case nsXPTType::T_U8     : dp->val.u8  = *(iargs); break;

    80     case nsXPTType::T_U16    : dp->val.u16 = *(iargs); break;

    81     case nsXPTType::T_U32    : dp->val.u32 = *(iargs); break;

    82     case nsXPTType::T_U64    : dp->val.u64 = *(iargs); break;

    83     case nsXPTType::T_FLOAT  :

    84       isfloat = 1;

    85       if (i < 7)

    86         dp->val.f = (float) *((double*) fargs); /* register */

    87       else

    88         dp->val.u32 = *(fargs); /* memory */

    89       break;

    90     case nsXPTType::T_DOUBLE :

    91       isfloat = 1;

    92       dp->val.u64 = *(fargs);

    93       break;

    94     case nsXPTType::T_BOOL   : dp->val.b   = *(iargs); break;

    95     case nsXPTType::T_CHAR   : dp->val.c   = *(iargs); break;

    96     case nsXPTType::T_WCHAR  : dp->val.wc  = *(iargs); break;

    97     default:

    98       NS_ERROR("bad type");

    99       break;

   100     }

   101     if (i < 7)

   102     {

   103       /* we are parsing register arguments */

   104       if (i == 6)

   105       {

   106         // run out of register arguments, move on to memory arguments

   107         iargs = restargs;

   108         fargs = restargs;

   109       }

   110       else

   111       {

   112         ++iargs; // advance one integer register slot

   113         if (isfloat) ++fargs; // advance float register slot if isfloat

   114       }

   115     }

   116     else

   117     {

   118       /* we are parsing memory arguments */

   119       ++iargs;

   120       ++fargs;

   121     }

   122   }

   124   result = self->mOuter->CallMethod((uint16_t) methodIndex, info, dispatchParams);

   126   if(dispatchParams != paramBuffer)

   127     delete [] dispatchParams;

   129   return result;

   130 }

   132 extern "C" nsresult SharedStub(uint64_t,uint64_t,uint64_t,uint64_t,

   133  uint64_t,uint64_t,uint64_t,uint64_t,uint64_t,uint64_t *);

   135 /* Variable a0-a7 were put there so we can have access to the 8 input

   136    registers on Stubxyz entry */

   138 #define STUB_ENTRY(n) \

   139 nsresult nsXPTCStubBase::Stub##n(uint64_t a1, \

   140 uint64_t a2,uint64_t a3,uint64_t a4,uint64_t a5,uint64_t a6,uint64_t a7, \

   141 uint64_t a8) \

   142 { uint64_t a0 = (uint64_t) this; \

   143  return SharedStub(a0,a1,a2,a3,a4,a5,a6,a7,(uint64_t) n, &a8); \

   144 }

   146 #define SENTINEL_ENTRY(n) \

   147 nsresult nsXPTCStubBase::Sentinel##n() \

   148 { \

   149     NS_ERROR("nsXPTCStubBase::Sentinel called"); \

   150     return NS_ERROR_NOT_IMPLEMENTED; \

   151 }

   153 #include "xptcstubsdef.inc"

The Tor Browser / file revision

xpcom/reflect/xptcall/src/md/unix/xptcstubs_ipf64.cpp@129ffea94266

xpcom/reflect/xptcall/src/md/unix/xptcstubs_ipf64.cpp