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[libpng16] Quiet a "comparison always true" warning in pngstest.c (John Bowler).

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This commit is contained in:
John Bowler
2014-12-16 19:18:06 -06:00
committed by Glenn Randers-Pehrson
parent 0659cddd21
commit a00ea0aeae
3 changed files with 30 additions and 17 deletions
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39
contrib/libtests/pngstest.c
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@@ -3173,32 +3173,43 @@ read_one_file(Image *image)
{
long int cb = ftell(f);
if (cb > 0 && (unsigned long int)cb < (size_t)~(size_t)0)
if (cb > 0)
{
png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
if (b != NULL)
if ((unsigned long int)cb <= (size_t)~(size_t)0)
{
rewind(f);
png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
if (fread(b, (size_t)cb, 1, f) == 1)
if (b != NULL)
{
fclose(f);
image->input_memory_size = cb;
image->input_memory = b;
rewind(f);
if (fread(b, (size_t)cb, 1, f) == 1)
{
fclose(f);
image->input_memory_size = cb;
image->input_memory = b;
}
else
{
free(b);
return logclose(image, f, image->file_name,
": read failed: ");
}
}
else
{
free(b);
return logclose(image, f, image->file_name,
": read failed: ");
}
": out of memory: ");
}
else
return logclose(image, f, image->file_name,
": out of memory: ");
": file too big for this architecture: ");
/* cb is the length of the file as a (long) and
* this is greater than the maximum amount of
* memory that can be requested from malloc.
*/
}
else if (cb == 0)