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(3DS) add argv handling for .cia builds

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This commit is contained in:
aliaspider 2016-10-08 01:43:05 +01:00
parent 4edbb48f34
commit 577824f546
1 changed files with 51 additions and 3 deletions
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54
ctr/ctr_system.c
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@ -87,9 +87,6 @@ void __attribute__((weak)) __libctru_init(void (*retAddr)(void))
/* Allocate application and linear heaps */
__system_allocateHeaps();
/* Build argc/argv if present */
__system_initArgv();
}
@ -136,15 +133,65 @@ int __system_argc;
char** __system_argv;
extern const char* __system_arglist;
// sha-256 of "ARGV"
char __argv_hmac[0x20] = {0x1d, 0x78, 0xff, 0xb9, 0xc5, 0xbc, 0x78, 0xb7, 0xac, 0x29, 0x1d, 0x3e, 0x16, 0xd0, 0xcf, 0x53,
0xef, 0x12, 0x58, 0x83, 0xb6, 0x9e, 0x2f, 0x79, 0x47, 0xf9, 0x35, 0x61, 0xeb, 0x50, 0xd7, 0x67};
Result APT_ReceiveDeliverArg(void* param, size_t param_size, void* hmac, size_t hmac_size, u64* source_pid, bool* received)
{
u32 cmdbuf[16];
cmdbuf[0]=IPC_MakeHeader(0x35,2,0);
cmdbuf[1]=param_size;
cmdbuf[2]=hmac_size;
u32 saved_threadstorage[4];
u32* staticbufs = getThreadStaticBuffers();
saved_threadstorage[0]=staticbufs[0];
saved_threadstorage[1]=staticbufs[1];
saved_threadstorage[2]=staticbufs[2];
saved_threadstorage[3]=staticbufs[3];
staticbufs[0]=IPC_Desc_StaticBuffer(param_size, 0);
staticbufs[1]=(u32)param;
staticbufs[2]=IPC_Desc_StaticBuffer(hmac_size, 2);
staticbufs[3]=(u32)hmac;
Result ret = aptSendCommand(cmdbuf);
staticbufs[0]=saved_threadstorage[0];
staticbufs[1]=saved_threadstorage[1];
staticbufs[2]=saved_threadstorage[2];
staticbufs[3]=saved_threadstorage[3];
if(R_FAILED(ret))
return ret;
if(source_pid)
*source_pid = ((u64*)cmdbuf)[1];
if(received)
*received = ((bool*)cmdbuf)[16];
return cmdbuf[1];
}
void __system_initArgv(void)
{
int i;
struct
{
u32 argc;
char args[];
}*arg_struct = (void*)__system_arglist;
static u8 param[0x300];
u8 hmac[0x20];
bool received;
if(!__service_ptr
&& R_SUCCEEDED(APT_ReceiveDeliverArg(&param, sizeof(param), hmac, sizeof(hmac), NULL, &received))
&& received
&& !memcmp(hmac, __argv_hmac, sizeof(__argv_hmac)))
arg_struct = (void*)param;
__system_argc = 0;
if (arg_struct)
@ -184,6 +231,7 @@ void initSystem(void (*retAddr)(void))
{
__libctru_init(retAddr);
__appInit();
__system_initArgv();
__libc_init_array();
}