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Michael R Sweet 2023-12-18 10:04:00 -05:00
parent 83bfb135c6
commit abc69b3361
No known key found for this signature in database
GPG Key ID: BE67C75EC81F3244
2 changed files with 9 additions and 5 deletions
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8
pdfio-crypto.c
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@ -409,11 +409,13 @@ _pdfio_crypto_cb_t // O - Decryption callback or `NULL` for none
uint8_t data[21]; // Key data uint8_t data[21]; // Key data
_pdfio_md5_t md5; // MD5 state _pdfio_md5_t md5; // MD5 state
uint8_t digest[16]; // MD5 digest value uint8_t digest[16]; // MD5 digest value
#if PDFIO_OBJ_CRYPT
pdfio_array_t *id_array; // Object ID array pdfio_array_t *id_array; // Object ID array
unsigned char *id_value; // Object ID value unsigned char *id_value; // Object ID value
size_t id_len; // Length of object ID size_t id_len; // Length of object ID
uint8_t *file_key, // Computed file key to use uint8_t temp_key[16]; // File key for object
temp_key[16]; // File key for object #endif // PDFIO_OBJ_CRYPT
uint8_t *file_key; // Computed file key to use
PDFIO_DEBUG("_pdfioCryptoMakeReader(pdf=%p, obj=%p(%d), ctx=%p, iv=%p, ivlen=%p(%d))\n", pdf, obj, (int)obj->number, ctx, iv, ivlen, (int)*ivlen); PDFIO_DEBUG("_pdfioCryptoMakeReader(pdf=%p, obj=%p(%d), ctx=%p, iv=%p, ivlen=%p(%d))\n", pdf, obj, (int)obj->number, ctx, iv, ivlen, (int)*ivlen);
@ -425,6 +427,7 @@ _pdfio_crypto_cb_t // O - Decryption callback or `NULL` for none
return (NULL); return (NULL);
} }
#if PDFIO_OBJ_CRYPT
if ((id_array = pdfioDictGetArray(pdfioObjGetDict(obj), "ID")) != NULL) if ((id_array = pdfioDictGetArray(pdfioObjGetDict(obj), "ID")) != NULL)
{ {
// Object has its own ID that will get used for encryption... // Object has its own ID that will get used for encryption...
@ -471,6 +474,7 @@ _pdfio_crypto_cb_t // O - Decryption callback or `NULL` for none
file_key = temp_key; file_key = temp_key;
} }
else else
#endif // PDFIO_OBJ_CRYPT
{ {
// Use the default file key... // Use the default file key...
file_key = pdf->file_key; file_key = pdf->file_key;

6
pdfio-stream.c
View File

@ -1066,7 +1066,7 @@ stream_read(pdfio_stream_t *st, // I - Stream
if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK) if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
{ {
_pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status)); _pdfioFileError(st->pdf, "Unable to decompress stream data for object %ld: %s", (long)st->obj->number, zstrerror(status));
return (-1); return (-1);
} }
else if (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out) else if (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out)
@ -1127,7 +1127,7 @@ stream_read(pdfio_stream_t *st, // I - Stream
if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK) if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
{ {
_pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status)); _pdfioFileError(st->pdf, "Unable to decompress stream data for object %ld: %s", (long)st->obj->number, zstrerror(status));
return (-1); return (-1);
} }
else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out)) else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out))
@ -1197,7 +1197,7 @@ stream_read(pdfio_stream_t *st, // I - Stream
if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK) if ((status = inflate(&(st->flate), Z_NO_FLUSH)) < Z_OK)
{ {
_pdfioFileError(st->pdf, "Unable to decompress stream data: %s", zstrerror(status)); _pdfioFileError(st->pdf, "Unable to decompress stream data for object %ld: %s", (long)st->obj->number, zstrerror(status));
return (-1); return (-1);
} }
else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out)) else if (status == Z_STREAM_END || (avail_in == st->flate.avail_in && avail_out == st->flate.avail_out))