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Fix bug with xref stream with no index.

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Fix bug with pdfiOStreamPeek not appending new stream data to buffer.

Add more debug printfs for values.
This commit is contained in:
Michael R Sweet
2021-08-24 13:49:43 -04:00
parent 4ec19545f3
commit 6745f785b7
3 changed files with 24 additions and 15 deletions
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35
pdfio-value.c
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@ -359,7 +359,18 @@ _pdfioValueRead(pdfio_file_t *pdf, // I - PDF file
// Integer or object ref...
unsigned char *tempptr; // Pointer into buffer
PDFIO_DEBUG("_pdfioValueRead: %d bytes left in buffer.\n", (int)(tb->bufend - tb->bufptr));
#ifdef DEBUG
PDFIO_DEBUG("_pdfioValueRead: %d bytes left in buffer: '", (int)(tb->bufend - tb->bufptr));
for (tempptr = tb->bufptr; tempptr < tb->bufend; tempptr ++)
{
if (*tempptr < ' ' || *tempptr == 0x7f)
PDFIO_DEBUG("\\%03o", *tempptr);
else
PDFIO_DEBUG("%c", *tempptr);
}
PDFIO_DEBUG("'.\n");
#endif // DEBUG
if ((tb->bufend - tb->bufptr) < 10)
{
// Fill up buffer...
@ -370,20 +381,18 @@ _pdfioValueRead(pdfio_file_t *pdf, // I - PDF file
if ((bytes = (tb->peek_cb)(tb->cb_data, tb->buffer, sizeof(tb->buffer))) > 0)
tb->bufend = tb->buffer + bytes;
PDFIO_DEBUG("_pdfioValueRead: %d bytes now left in buffer.\n", (int)(tb->bufend - tb->bufptr));
}
#ifdef DEBUG
PDFIO_DEBUG("_pdfioValueRead: Bytes are '");
for (tempptr = tb->bufptr; tempptr < tb->bufend; tempptr ++)
{
if (*tempptr < ' ' || *tempptr == 0x7f)
PDFIO_DEBUG("\\%03o", *tempptr);
else
PDFIO_DEBUG("%c", *tempptr);
}
PDFIO_DEBUG("'.\n");
PDFIO_DEBUG("_pdfioValueRead: %d bytes now in buffer: '", (int)(tb->bufend - tb->bufptr));
for (tempptr = tb->bufptr; tempptr < tb->bufend; tempptr ++)
{
if (*tempptr < ' ' || *tempptr == 0x7f)
PDFIO_DEBUG("\\%03o", *tempptr);
else
PDFIO_DEBUG("%c", *tempptr);
}
PDFIO_DEBUG("'.\n");
#endif // DEBUG
}
tempptr = tb->bufptr;