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Various changes suggested by cppcheck

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- remove unused variables
- reduce the scope where it makes sense
- correct limits (did you know that strcat()'s last parameter does not
  include the \0 that is always added?)
- set some free()'d pointers to NULL
This commit is contained in:
Tillmann Karras
2014-02-23 23:03:39 +01:00
parent 5f0a8008f4
commit 315a8ba1c0
63 changed files with 494 additions and 420 deletions
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104
Source/Core/Core/ARDecrypt.cpp
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@ -145,51 +145,56 @@ const u32 table7[0x40] = {
void generateseeds(u32 *seeds, const u8 *seedtable, u8 doreverse)
{
int i,j;
u32 tmp3;
u8 array0[0x38],array1[0x38],array2[0x08];
u8 tmp,tmp2;
i = 0;
while (i < 0x38)
for (int i = 0; i < 0x38; ++i)
{
tmp = (gentable0[i] - 1);
array0[i++] = ((u32)(0-(seedtable[tmp>>3] & gentable1[tmp&7])) >> 31);
array0[i] = ((u32)(0-(seedtable[tmp>>3] & gentable1[tmp&7])) >> 31);
}
i = 0;
while (i < 0x10)
for (int i = 0; i < 0x10; ++i)
{
memset(array2,0,8);
tmp2 = gentable2[i];
for (j = 0; j < 0x38; j++)
for (int j = 0; j < 0x38; j++)
{
tmp = (tmp2+j);
if (j > 0x1B)
{
if (tmp > 0x37) tmp-=0x1C;
if (tmp > 0x37)
{
tmp-=0x1C;
}
}
else if (tmp > 0x1B)
{
tmp-=0x1C;
}
else if (tmp > 0x1B) tmp-=0x1C;
array1[j] = array0[tmp];
}
for (j = 0; j < 0x30; j++)
for (int j = 0; j < 0x30; j++)
{
if (!array1[gentable3[j]-1]) continue;
if (!array1[gentable3[j]-1])
{
continue;
}
tmp = (((j*0x2AAB)>>16) - (j>>0x1F));
array2[tmp] |= (gentable1[j-(tmp*6)]>>2);
}
seeds[i<<1] = ((array2[0]<<24)|(array2[2]<<16)|(array2[4]<<8)|array2[6]);
seeds[(i<<1)+1] = ((array2[1]<<24)|(array2[3]<<16)|(array2[5]<<8)|array2[7]);
i++;
}
if (!doreverse)
{
j = 0x1F;
for (i = 0; i < 16; i+=2)
int j = 0x1F;
for (int i = 0; i < 16; i+=2)
{
tmp3 = seeds[i];
seeds[i] = seeds[j-1];
@ -222,20 +227,17 @@ void setcode(u32 *dst, u32 addr, u32 val)
u16 gencrc16(u32 *codes, u16 size)
{
u16 ret=0;
u8 tmp=0,tmp2;
int i;
u16 ret = 0;
if (size > 0)
{
while (tmp < size)
for (u8 tmp = 0; tmp < size; ++tmp)
{
for (i = 0; i < 4; i++)
for (int i = 0; i < 4; ++i)
{
tmp2 = ((codes[tmp] >> (i<<3))^ret);
u8 tmp2 = ((codes[tmp] >> (i<<3))^ret);
ret = ((crctable0[(tmp2>>4)&0x0F]^crctable1[tmp2&0x0F])^(ret>>8));
}
tmp++;
}
}
return ret;
@ -243,9 +245,7 @@ u16 gencrc16(u32 *codes, u16 size)
u8 verifycode(u32 *codes, u16 size)
{
u16 tmp;
tmp = gencrc16(codes,size);
u16 tmp = gencrc16(codes,size);
return (((tmp>>12)^(tmp>>8)^(tmp>>4)^tmp)&0x0F);
}
@ -338,7 +338,10 @@ bool getbitstring(u32 *ctrl, u32 *out, u8 len)
ctrl[1]++;
tmp = (ctrl[0]+(ctrl[1]<<2));
}
if (ctrl[1] >= ctrl[3]) return false;
if (ctrl[1] >= ctrl[3])
{
return false;
}
*out = ((*out<<1) | ((tmp >> (0x1F-ctrl[2])) & 1));
ctrl[2]++;
}
@ -372,13 +375,16 @@ bool batchdecrypt(u32 *codes, u16 size)
getbitstring(tmparray,tmparray2+5,2); // Region
// Grab gameid and region from the last decrypted code
// Maybe check this against dolphin's GameID? - "code is for wrong game" type msg
// TODO: Maybe check this against dolphin's GameID? - "code is for wrong game" type msg
//gameid = tmparray2[1];
//region = tmparray2[5];
tmp = codes[0];
codes[0] &= 0x0FFFFFFF;
if ((tmp>>28) != verifycode(codes,size)) return false;
if ((tmp>>28) != verifycode(codes,size))
{
return false;
}
return true;
@ -406,23 +412,24 @@ int GetVal(const char *flt, char chr)
int alphatobin(u32 *dst, std::vector<std::string> alpha, int size)
{
int i,j=0,k;
int ret=0,org=(size+1);
int j = 0;
int ret = 0;
int org = size + 1;
u32 bin[2];
u8 parity;
while (size)
for (; size; --size)
{
bin[0]=0;
for (i = 0; i < 6; i++)
bin[0] = 0;
for (int i = 0; i < 6; i++)
{
bin[0] |= (GetVal(filter,alpha[j>>1][i]) << (((5-i)*5)+2));
}
bin[0] |= (GetVal(filter,alpha[j>>1][6]) >> 3);
dst[j++] = bin[0];
bin[1]=0;
for (i = 0; i < 6; i++)
bin[1] = 0;
for (int i = 0; i < 6; i++)
{
bin[1] |= (GetVal(filter,alpha[j>>1][i+6]) << (((5-i)*5)+4));
}
@ -430,16 +437,20 @@ int alphatobin(u32 *dst, std::vector<std::string> alpha, int size)
dst[j++] = bin[1];
//verify parity bit
k=0;
parity=0;
for (i = 0; i < 64; i++)
int k = 0;
parity = 0;
for (int i = 0; i < 64; i++)
{
if (i == 32) k++;
if (i == 32)
{
k++;
}
parity ^= (bin[k] >> (i-(k<<5)));
}
if ((parity&1) != (GetVal(filter,alpha[(j-2)>>1][12])&1)) ret=(org-size);
size--;
if ((parity&1) != (GetVal(filter,alpha[(j-2)>>1][12])&1))
{
ret=(org-size);
}
}
return ret;
@ -451,12 +462,11 @@ void DecryptARCode(std::vector<std::string> vCodes, std::vector<AREntry> &ops)
buildseeds();
u32 uCodes[1200];
u32 i,ret;
u32 ret;
for(i = 0; i < vCodes.size(); ++i)
for (std::string& s : vCodes)
{
transform(vCodes[i].begin(), vCodes[i].end(), vCodes[i].begin(), toupper);
//PanicAlert("Encrypted AR Code\n%s", vCodes[i].c_str());
std::transform(s.begin(), s.end(), s.begin(), toupper);
}
if ((ret=alphatobin(uCodes, vCodes, (int)vCodes.size())))
@ -470,7 +480,7 @@ void DecryptARCode(std::vector<std::string> vCodes, std::vector<AREntry> &ops)
//PanicAlert("Action Replay Code Decryption Error:\nCRC Check Failed\n\n"
// "First Code in Block(should be verification code):\n%s", vCodes[0].c_str());
for (i = 0; i < (vCodes.size()<<1); i+=2)
for (size_t i = 0; i < (vCodes.size()<<1); i+=2)
{
AREntry op;
op.cmd_addr = uCodes[i];
@ -482,7 +492,7 @@ void DecryptARCode(std::vector<std::string> vCodes, std::vector<AREntry> &ops)
else
{
// Skip passing the verification code back
for (i = 2; i < (vCodes.size()<<1); i+=2)
for (size_t i = 2; i < (vCodes.size()<<1); i+=2)
{
AREntry op;
op.cmd_addr = uCodes[i];