AbstractFile* duplicateAbstractFile(AbstractFile* file, AbstractFile* backing) { uint32_t signatureBE; uint32_t signatureLE; AbstractFile* orig; if (!backing) { /* imagine that: createAbstractFileFromComp() fails, because of decompress_lzss() */ return NULL; } file->seek(file, 0); file->read(file, &signatureBE, sizeof(signatureBE)); signatureLE = signatureBE; FLIPENDIAN(signatureBE); FLIPENDIANLE(signatureLE); file->seek(file, 0); if(signatureLE == IMG2_SIGNATURE) { orig = createAbstractFileFromImg2(file); return duplicateAbstractFile(orig, duplicateImg2File(orig, backing)); } else if(signatureLE == IMG3_SIGNATURE) { orig = createAbstractFileFromImg3(file); return duplicateAbstractFile(orig, duplicateImg3File(orig, backing)); } else if(signatureBE == COMP_SIGNATURE) { orig = createAbstractFileFromComp(file); return duplicateAbstractFile(orig, duplicateCompFile(orig, backing)); } else { file->close(file); return backing; } }
AbstractFile *duplicateAbstractFile2(AbstractFile * file, AbstractFile * backing, const unsigned int *key, const unsigned int *iv, AbstractFile * certificate) { uint32_t signatureBE; uint32_t signatureLE; AbstractFile *orig; AbstractFile *newFile; file->seek(file, 0); file->read(file, &signatureBE, sizeof(signatureBE)); signatureLE = signatureBE; FLIPENDIAN(signatureBE); FLIPENDIANLE(signatureLE); file->seek(file, 0); if (signatureBE == SIGNATURE_8900) { orig = createAbstractFileFrom8900(file); newFile = duplicate8900File(orig, backing); if (certificate != NULL) replaceCertificate8900(newFile, certificate); return duplicateAbstractFile(orig, newFile); } else if (signatureLE == IMG2_SIGNATURE) { orig = createAbstractFileFromImg2(file); return duplicateAbstractFile(orig, duplicateImg2File(orig, backing)); } else if (signatureLE == IMG3_SIGNATURE) { AbstractFile2 *newFile; AbstractFile2 *img3; img3 = (AbstractFile2 *) createAbstractFileFromImg3(file); if (key != NULL) img3->setKey(img3, key, iv); newFile = (AbstractFile2 *) duplicateImg3File((AbstractFile *) img3, backing); if (key != NULL) img3->setKey(newFile, key, iv); if (certificate != NULL) replaceCertificateImg3((AbstractFile *) newFile, certificate); return duplicateAbstractFile((AbstractFile *) img3, (AbstractFile *) newFile); } else if (signatureBE == COMP_SIGNATURE) { orig = createAbstractFileFromComp(file); return duplicateAbstractFile(orig, duplicateCompFile(orig, backing)); } else { file->close(file); return backing; } }