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Clean up some compiler warnings.

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Michael R Sweet 2025-02-22 19:48:09 -05:00
parent 6e2e4bbcc6
commit 1237599dea
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GPG Key ID: BE67C75EC81F3244
6 changed files with 65 additions and 70 deletions
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2
pdfio-aes.c
View File

@ -241,7 +241,7 @@ _pdfioCryptoAESEncrypt(
if (len > 0)
{
// Pad the final buffer with (16 - len)...
memset(outbuffer + len, 16 - len, 16 - len);
memset(outbuffer + len, (int)(16 - len), 16 - len);
xor_with_iv(outbuffer, iv);
cipher((state_t*)outbuffer, ctx);

12
pdfio-common.c
View File

@ -98,7 +98,7 @@ _pdfioFileFlush(pdfio_file_t *pdf) // I - PDF file
if (!write_buffer(pdf, pdf->buffer, (size_t)(pdf->bufptr - pdf->buffer)))
return (false);
pdf->bufpos += pdf->bufptr - pdf->buffer;
pdf->bufpos += (off_t)(pdf->bufptr - pdf->buffer);
}
pdf->bufptr = pdf->buffer;
@ -216,7 +216,7 @@ _pdfioFilePeek(pdfio_file_t *pdf, // I - PDF file
PDFIO_DEBUG("_pdfioFilePeek: Sliding buffer, total=%ld\n", (long)total);
memmove(pdf->buffer, pdf->bufptr, total);
pdf->bufpos += pdf->bufptr - pdf->buffer;
pdf->bufpos += (off_t)(pdf->bufptr - pdf->buffer);
pdf->bufptr = pdf->buffer;
pdf->bufend = pdf->buffer + total;
@ -317,14 +317,14 @@ _pdfioFileRead(pdfio_file_t *pdf, // I - PDF file
// Advance current position in file as needed...
if (pdf->bufend)
{
pdf->bufpos += pdf->bufend - pdf->buffer;
pdf->bufpos += (off_t)(pdf->bufend - pdf->buffer);
pdf->bufptr = pdf->bufend = NULL;
}
// Read directly from the file...
if ((rbytes = read_buffer(pdf, bufptr, bytes)) > 0)
{
pdf->bufpos += rbytes;
pdf->bufpos += (off_t)rbytes;
continue;
}
else if (rbytes < 0 && (errno == EINTR || errno == EAGAIN))
@ -361,14 +361,14 @@ _pdfioFileSeek(pdfio_file_t *pdf, // I - PDF file
// Adjust offset for relative seeks...
if (whence == SEEK_CUR)
{
offset += pdf->bufpos + (pdf->bufptr - pdf->buffer);
offset += pdf->bufpos + (off_t)(pdf->bufptr - pdf->buffer);
whence = SEEK_SET;
}
if (pdf->mode == _PDFIO_MODE_READ)
{
// Reading, see if we already have the data we need...
if (whence != SEEK_END && offset >= pdf->bufpos && pdf->bufend && offset < (pdf->bufpos + pdf->bufend - pdf->buffer))
if (whence != SEEK_END && offset >= pdf->bufpos && pdf->bufend && offset < (off_t)(pdf->bufpos + pdf->bufend - pdf->buffer))
{
// Yes, seek within existing buffer...
pdf->bufptr = pdf->buffer + (offset - pdf->bufpos);

35
pdfio-content.c
View File

@ -322,7 +322,7 @@ pdfioArrayCreateColorFromPalette(
pdfioArrayAppendName(indexed_color, "Indexed");
pdfioArrayAppendName(indexed_color, "DeviceRGB");
pdfioArrayAppendNumber(indexed_color, num_colors - 1);
pdfioArrayAppendNumber(indexed_color, (double)(num_colors - 1));
pdfioArrayAppendBinary(indexed_color, colors, num_colors * 3);
return (indexed_color);
@ -1814,14 +1814,14 @@ pdfioFileCreateFontObjFromFile(
if ((i - start) > 1)
{
// Encode a repeating sequence...
pdfioArrayAppendNumber(w_array, start);
pdfioArrayAppendNumber(w_array, i - 1);
pdfioArrayAppendNumber(w_array, (double)start);
pdfioArrayAppendNumber(w_array, (double)(i - 1));
pdfioArrayAppendNumber(w_array, w0);
}
else
{
// Encode a non-repeating sequence...
pdfioArrayAppendNumber(w_array, start);
pdfioArrayAppendNumber(w_array, (double)start);
if ((temp_array = pdfioArrayCreate(pdf)) == NULL)
goto done;
@ -1946,7 +1946,7 @@ pdfioFileCreateICCObjFromData(
if ((dict = pdfioDictCreate(pdf)) == NULL)
return (NULL);
pdfioDictSetNumber(dict, "N", num_colors);
pdfioDictSetNumber(dict, "N", (double)num_colors);
pdfioDictSetName(dict, "Filter", "FlateDecode");
if ((obj = pdfioFileCreateObj(pdf, dict)) == NULL)
@ -2012,7 +2012,7 @@ pdfioFileCreateICCObjFromFile(
return (NULL);
}
pdfioDictSetNumber(dict, "N", num_colors);
pdfioDictSetNumber(dict, "N", (double)num_colors);
pdfioDictSetName(dict, "Filter", "FlateDecode");
if ((obj = pdfioFileCreateObj(pdf, dict)) == NULL)
@ -2095,8 +2095,8 @@ pdfioFileCreateImageObjFromData(
pdfioDictSetName(dict, "Type", "XObject");
pdfioDictSetName(dict, "Subtype", "Image");
pdfioDictSetBoolean(dict, "Interpolate", interpolate);
pdfioDictSetNumber(dict, "Width", width);
pdfioDictSetNumber(dict, "Height", height);
pdfioDictSetNumber(dict, "Width", (double)width);
pdfioDictSetNumber(dict, "Height", (double)height);
pdfioDictSetNumber(dict, "BitsPerComponent", 8);
if (color_data)
@ -2539,7 +2539,7 @@ copy_jpeg(pdfio_dict_t *dict, // I - Dictionary
}
// Copy from the file buffer to the ICC buffer
if ((bytes = bufend - bufptr) > length)
if ((bytes = bufend - bufptr) > (ssize_t)length)
bytes = (ssize_t)length;
memcpy(icc_data + icc_datalen, bufptr, bytes);
@ -2566,7 +2566,7 @@ copy_jpeg(pdfio_dict_t *dict, // I - Dictionary
{
bytes = bufend - bufptr;
if (length > bytes)
if (length > (size_t)bytes)
{
// Consume everything we have and grab more...
length -= (size_t)bytes;
@ -2591,7 +2591,10 @@ copy_jpeg(pdfio_dict_t *dict, // I - Dictionary
}
if (width == 0 || height == 0 || (num_colors != 1 && num_colors != 3))
return (NULL);
{
_pdfioFileError(dict->pdf, "Unable to find JPEG dimensions or image data.");
goto finish;
}
// Create the image object...
pdfioDictSetNumber(dict, "Width", width);
@ -3567,9 +3570,9 @@ create_image(
return (NULL);
}
pdfioDictSetNumber(decode, "BitsPerComponent", depth);
pdfioDictSetNumber(decode, "BitsPerComponent", (double)depth);
pdfioDictSetNumber(decode, "Colors", 1);
pdfioDictSetNumber(decode, "Columns", width);
pdfioDictSetNumber(decode, "Columns", (double)width);
pdfioDictSetNumber(decode, "Predictor", _PDFIO_PREDICTOR_PNG_AUTO);
pdfioDictSetDict(mask_dict, "DecodeParms", decode);
@ -3619,9 +3622,9 @@ create_image(
return (NULL);
}
pdfioDictSetNumber(decode, "BitsPerComponent", depth);
pdfioDictSetNumber(decode, "Colors", num_colors);
pdfioDictSetNumber(decode, "Columns", width);
pdfioDictSetNumber(decode, "BitsPerComponent", (double)depth);
pdfioDictSetNumber(decode, "Colors", (double)num_colors);
pdfioDictSetNumber(decode, "Columns", (double)width);
pdfioDictSetNumber(decode, "Predictor", _PDFIO_PREDICTOR_PNG_AUTO);
pdfioDictSetDict(dict, "DecodeParms", decode);

4
pdfio-crypto.c
View File

@ -1,7 +1,7 @@
//
// Cryptographic support functions for PDFio.
//
// Copyright © 2021-2023 by Michael R Sweet.
// Copyright © 2021-2025 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
@ -466,6 +466,7 @@ _pdfioCryptoMakeReader(
if (memcmp(pdf->password, pdf_user_key, 32) && memcmp(own_user_key, pdf_user_key, 16))
{
_pdfioFileError(pdf, "Unable to unlock file.");
*ivlen = 0;
return (NULL);
}
@ -483,6 +484,7 @@ _pdfioCryptoMakeReader(
switch (pdf->encryption)
{
default :
_pdfioFileError(pdf, "Unsupported encryption algorithm.");
*ivlen = 0;
return (NULL);

14
pdfio-file.c
View File

@ -1799,7 +1799,7 @@ load_xref(
return (false);
}
if (_pdfioFileSeek(pdf, line_offset + ptr + 3 - line, SEEK_SET) < 0)
if (_pdfioFileSeek(pdf, line_offset + (off_t)(ptr + 3 - line), SEEK_SET) < 0)
{
_pdfioFileError(pdf, "Unable to seek to xref object %lu %u.", (unsigned long)number, (unsigned)generation);
return (false);
@ -1941,7 +1941,7 @@ load_xref(
if (w[0] == 0 || buffer[0] == 1)
{
// Location of object...
current->offset = offset;
current->offset = (off_t)offset;
}
else if (number != offset)
{
@ -1978,7 +1978,7 @@ load_xref(
else if (!current)
{
// Add this object...
if (!add_obj(pdf, (size_t)number, (unsigned short)generation, offset))
if (!add_obj(pdf, (size_t)number, (unsigned short)generation, (off_t)offset))
return (false);
}
@ -2105,7 +2105,7 @@ load_xref(
if (pdfioFileFindObj(pdf, (size_t)number))
continue; // Don't replace newer object...
if (!add_obj(pdf, (size_t)number, (unsigned short)generation, offset))
if (!add_obj(pdf, (size_t)number, (unsigned short)generation, (off_t)offset))
return (false);
}
@ -2361,7 +2361,7 @@ write_pages(pdfio_file_t *pdf) // I - PDF file
for (i = 0; i < pdf->num_pages; i ++)
pdfioArrayAppendObj(kids, pdf->pages[i]);
pdfioDictSetNumber(pdf->pages_obj->value.value.dict, "Count", pdf->num_pages);
pdfioDictSetNumber(pdf->pages_obj->value.value.dict, "Count", (double)pdf->num_pages);
pdfioDictSetArray(pdf->pages_obj->value.value.dict, "Kids", kids);
// Write the Pages object...
@ -2438,7 +2438,7 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
}
pdfioDictSetName(xref_dict, "Type", "XRef");
pdfioDictSetNumber(xref_dict, "Size", pdf->num_objs + 2);
pdfioDictSetNumber(xref_dict, "Size", (double)(pdf->num_objs + 2));
pdfioDictSetArray(xref_dict, "W", w_array);
pdfioDictSetName(xref_dict, "Filter", "FlateDecode");
pdfioDictSetObj(xref_dict, "Info", pdf->info_obj);
@ -2586,7 +2586,7 @@ write_trailer(pdfio_file_t *pdf) // I - PDF file
pdfioDictSetArray(pdf->trailer_dict, "ID", pdf->id_array);
pdfioDictSetObj(pdf->trailer_dict, "Info", pdf->info_obj);
pdfioDictSetObj(pdf->trailer_dict, "Root", pdf->root_obj);
pdfioDictSetNumber(pdf->trailer_dict, "Size", pdf->num_objs + 1);
pdfioDictSetNumber(pdf->trailer_dict, "Size", (double)(pdf->num_objs + 1));
if (!_pdfioDictWrite(pdf->trailer_dict, NULL, NULL))
{

68
pdfio-stream.c
View File

@ -1,7 +1,7 @@
//
// PDF stream functions for PDFio.
//
// Copyright © 2021-2024 by Michael R Sweet.
// Copyright © 2021-2025 by Michael R Sweet.
//
// Licensed under Apache License v2.0. See the file "LICENSE" for more
// information.
@ -140,7 +140,7 @@ pdfioStreamClose(pdfio_stream_t *st) // I - Stream
// Update the length as needed...
if (st->length_obj)
{
st->length_obj->value.value.number = st->obj->stream_length;
st->length_obj->value.value.number = (double)st->obj->stream_length;
pdfioObjClose(st->length_obj);
}
else if (st->obj->length_offset)
@ -440,14 +440,14 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
if ((st->remaining = pdfioObjGetLength(obj)) == 0)
{
free(st);
return (NULL);
_pdfioFileError(obj->pdf, "No stream data.");
goto error;
}
if (_pdfioFileSeek(st->pdf, obj->stream_offset, SEEK_SET) != obj->stream_offset)
{
free(st);
return (NULL);
_pdfioFileError(obj->pdf, "Unable to seek to stream data.");
goto error;
}
type = pdfioObjGetType(obj);
@ -460,11 +460,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
ivlen = (size_t)_pdfioFilePeek(st->pdf, iv, sizeof(iv));
if ((st->crypto_cb = _pdfioCryptoMakeReader(st->pdf, obj, &st->crypto_ctx, iv, &ivlen)) == NULL)
{
// TODO: Add error message?
free(st);
return (NULL);
}
goto error;
PDFIO_DEBUG("_pdfioStreamOpen: ivlen=%d\n", (int)ivlen);
if (ivlen > 0)
@ -495,8 +491,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
{
// TODO: Implement compound filters...
_pdfioFileError(st->pdf, "Unsupported compound stream filter.");
free(st);
return (NULL);
goto error;
}
// No filter, read as-is...
@ -529,8 +524,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
else if (bpc < 1 || bpc == 3 || (bpc > 4 && bpc < 8) || (bpc > 8 && bpc < 16) || bpc > 16)
{
_pdfioFileError(st->pdf, "Unsupported BitsPerColor value %d.", bpc);
free(st);
return (NULL);
goto error;
}
if (colors == 0)
@ -540,8 +534,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
else if (colors < 0 || colors > 4)
{
_pdfioFileError(st->pdf, "Unsupported Colors value %d.", colors);
free(st);
return (NULL);
goto error;
}
if (columns == 0)
@ -551,15 +544,13 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
else if (columns < 0)
{
_pdfioFileError(st->pdf, "Unsupported Columns value %d.", columns);
free(st);
return (NULL);
goto error;
}
if ((predictor > 2 && predictor < 10) || predictor > 15)
{
_pdfioFileError(st->pdf, "Unsupported Predictor function %d.", predictor);
free(st);
return (NULL);
goto error;
}
else if (predictor > 1)
{
@ -573,23 +564,19 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
if ((st->prbuffer = calloc(1, st->pbsize - 1)) == NULL || (st->psbuffer = calloc(1, st->pbsize)) == NULL)
{
_pdfioFileError(st->pdf, "Unable to allocate %lu bytes for Predictor buffers.", (unsigned long)st->pbsize);
free(st->prbuffer);
free(st->psbuffer);
free(st);
return (NULL);
goto error;
}
}
else
{
st->predictor = _PDFIO_PREDICTOR_NONE;
}
st->cbsize = 4096;
if ((st->cbuffer = malloc(st->cbsize)) == NULL)
{
_pdfioFileError(st->pdf, "Unable to allocate %lu bytes for Flate compression buffer.", (unsigned long)st->cbsize);
free(st->prbuffer);
free(st->psbuffer);
free(st);
return (NULL);
goto error;
}
PDFIO_DEBUG("_pdfioStreamOpen: pos=%ld\n", (long)_pdfioFileTell(st->pdf));
@ -601,10 +588,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
if (rbytes <= 0)
{
_pdfioFileError(st->pdf, "Unable to read bytes for stream.");
free(st->prbuffer);
free(st->psbuffer);
free(st);
return (NULL);
goto error;
}
if (st->crypto_cb)
@ -618,10 +602,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
if ((status = inflateInit(&(st->flate))) != Z_OK)
{
_pdfioFileError(st->pdf, "Unable to start Flate filter: %s", zstrerror(status));
free(st->prbuffer);
free(st->psbuffer);
free(st);
return (NULL);
goto error;
}
st->remaining -= st->flate.avail_in;
@ -635,8 +616,7 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
{
// Something else we don't support
_pdfioFileError(st->pdf, "Unsupported stream filter '/%s'.", filter);
free(st);
return (NULL);
goto error;
}
}
else
@ -646,6 +626,16 @@ _pdfioStreamOpen(pdfio_obj_t *obj, // I - Object
}
return (st);
// If we get here something went wrong...
error:
free(st->cbuffer);
free(st->prbuffer);
free(st->psbuffer);
free(st);
return (NULL);
}