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made decrypter's using TEXT parameter safe

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It was changing the original TEXT before... I'm so dumb...
This commit is contained in:
Václav Šmejkal 2022-12-09 15:56:48 +01:00
parent 7a5e632f7a
commit f5a6ece798
No known key found for this signature in database
GPG Key ID: FD749A97DF2D5E19
1 changed files with 13 additions and 7 deletions
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20
src/core/lib/decrypter.c
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@ -65,14 +65,19 @@ outputFlags decryptText(char *text, char *keyNew)
int *textKeyChain; int *textKeyChain;
char *key = malloc(strlen(keyNew) + 1); char *key = malloc(strlen(keyNew) + 1);
int *encryptedTextKeyChain; int *encryptedTextKeyChain;
char *usedText = malloc(strlen(text) + 1);
char *usedTextCopy = usedText;
//COPY keyNew TO key //COPY keyNew TO key
strcpy(key, keyNew); strcpy(key, keyNew);
//COPY text TO usedText
strcpy(usedText, text);
//GET LENGTH OF returningText AND textKeyChain //GET LENGTH OF returningText AND textKeyChain
for (int i = 0; i < (int) strlen(text); i++) for (int i = 0; i < (int) strlen(usedText); i++)
{ {
if (text[i] == getEncryptionSeparator()) numberBuffer++; if (usedText[i] == getEncryptionSeparator()) numberBuffer++;
} }
//SET LENGTH (numberBuffer) //SET LENGTH (numberBuffer)
@ -90,9 +95,9 @@ outputFlags decryptText(char *text, char *keyNew)
numberBuffer = 0; numberBuffer = 0;
//GET LENGTH OF EACH CHARACTER //GET LENGTH OF EACH CHARACTER
for (int j = 0; j < (int) strlen(text); j++) for (int j = 0; j < (int) strlen(usedText); j++)
{ {
if (text[j] == getEncryptionSeparator()) break; if (usedText[j] == getEncryptionSeparator()) break;
numberBuffer++; numberBuffer++;
} }
@ -112,16 +117,16 @@ outputFlags decryptText(char *text, char *keyNew)
} }
//LOAD textBuffer //LOAD textBuffer
for (int j = 0; j < (int) strlen(text); j++) for (int j = 0; j < (int) strlen(usedText); j++)
{ {
textBuffer[j] = text[j]; textBuffer[j] = usedText[j];
if (numberBuffer == j) break; if (numberBuffer == j) break;
} }
encryptedTextKeyChain[i] = atoi(textBuffer); encryptedTextKeyChain[i] = atoi(textBuffer);
text += numberBuffer + 1; usedText += numberBuffer + 1;
} }
//DECRYPT TEXT //DECRYPT TEXT
@ -160,6 +165,7 @@ outputFlags decryptText(char *text, char *keyNew)
free(textKeyChain); free(textKeyChain);
free(encryptedTextKeyChain); free(encryptedTextKeyChain);
free(textBuffer); free(textBuffer);
free(usedTextCopy);
return output; return output;
} }