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>

    15 // "This code is for IA64 only"

    17 /* Implement shared vtbl methods. */

    19 extern "C" nsresult ATTRIBUTE_USED

    20 PrepareAndDispatch(nsXPTCStubBase* self, uint32_t methodIndex,

    21   uint64_t* intargs, uint64_t* floatargs, uint64_t* restargs)

    22 {

    24 #define PARAM_BUFFER_COUNT     16

    26   nsXPTCMiniVariant paramBuffer[PARAM_BUFFER_COUNT];

    27   nsXPTCMiniVariant* dispatchParams = nullptr;

    28   const nsXPTMethodInfo* info;

    29   nsresult result = NS_ERROR_FAILURE;

    30   uint64_t* iargs = intargs;

    31   uint64_t* fargs = floatargs;

    32   uint8_t paramCount;

    33   uint8_t i;

    35   NS_ASSERTION(self,"no self");

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

    38   NS_ASSERTION(info,"no interface info");

    40   paramCount = info->GetParamCount();

    42   // setup variant array pointer

    43   if(paramCount > PARAM_BUFFER_COUNT)

    44     dispatchParams = new nsXPTCMiniVariant[paramCount];

    45   else

    46     dispatchParams = paramBuffer;

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

    48   if (! dispatchParams)

    49       return NS_ERROR_OUT_OF_MEMORY;

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

    52   {

    53     int isfloat = 0;

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

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

    56     nsXPTCMiniVariant* dp = &dispatchParams[i];

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

    59     {

    60 #ifdef __LP64__

    61         /* 64 bit pointer mode */

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

    63 #else

    64         /* 32 bit pointer mode */

    65         uint32_t* adr = (uint32_t*) iargs;

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

    67 #endif

    68     }

    69     else

    70     switch(type)

    71     {

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

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

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

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

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

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

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

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

    80     case nsXPTType::T_FLOAT  :

    81       isfloat = 1;

    82       if (i < 7)

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

    84       else

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

    86       break;

    87     case nsXPTType::T_DOUBLE :

    88       isfloat = 1;

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

    90       break;

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

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

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

    94     default:

    95       NS_ERROR("bad type");

    96       break;

    97     }

    98     if (i < 7)

    99     {

   100       /* we are parsing register arguments */

   101       if (i == 6)

   102       {

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

   104         iargs = restargs;

   105         fargs = restargs;

   106       }

   107       else

   108       {

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

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

   111       }

   112     }

   113     else

   114     {

   115       /* we are parsing memory arguments */

   116       ++iargs;

   117       ++fargs;

   118     }

   119   }

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

   123   if(dispatchParams != paramBuffer)

   124     delete [] dispatchParams;

   126   return result;

   127 }

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

   130  uint64_t,uint64_t,uint64_t,uint64_t,uint64_t,uint64_t *);

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

   133    registers on Stubxyz entry */

   135 #define STUB_ENTRY(n) \

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

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

   138 uint64_t a8) \

   139 { uint64_t a0 = (uint64_t) this; \

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

   141 }

   143 #define SENTINEL_ENTRY(n) \

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

   145 { \

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

   147     return NS_ERROR_NOT_IMPLEMENTED; \

   148 }

   150 #include "xptcstubsdef.inc"

The Tor Browser / file revision

xpcom/reflect/xptcall/src/md/unix/xptcstubs_ipf32.cpp@129ffea94266

xpcom/reflect/xptcall/src/md/unix/xptcstubs_ipf32.cpp