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[libpng17] 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 19:16:18 -06:00
committed by Glenn Randers-Pehrson
parent ba8495bba9
commit 201e9144a6
3 changed files with 30 additions and 17 deletions
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5
ANNOUNCE
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@@ -1,5 +1,5 @@
Libpng 1.7.0beta43 - December 15, 2014
Libpng 1.7.0beta43 - December 17, 2014
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@@ -658,11 +658,12 @@ Version 1.7.0beta42 [November 20, 2014]
Merged clang no-warning fix from libpng-1.6.13: png_digit was defined
but never used in pngerror.c.
Version 1.7.0beta43 [December 15, 2014]
Version 1.7.0beta43 [December 17, 2014]
Added ".align 2" to arm/filter_neon.S to support old GAS assemblers that
don't do alignment correctly.
Revised Makefile.am and scripts/*.dfn to work with MinGW/MSYS;
renamed scripts/*.dfn to scripts/*.c (Bob Friesenhahn and John Bowler).
Quiet a "comparison always true" warning in pngstest.c (John Bowler).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

3
CHANGES
View File

@@ -4947,11 +4947,12 @@ Version 1.7.0beta42 [November 20, 2014]
Merged clang no-warning fix from libpng-1.6.13: png_digit was defined
but never used in pngerror.c.
Version 1.7.0beta43 [December 15, 2014]
Version 1.7.0beta43 [December 17, 2014]
Added ".align 2" to arm/filter_neon.S to support old GAS assemblers that
don't do alignment correctly.
Revised Makefile.am and scripts/*.dfn to work with MinGW/MSYS;
renamed scripts/*.dfn to scripts/*.c (Bob Friesenhahn and John Bowler).
Quiet a "comparison always true" warning in pngstest.c (John Bowler).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net
(subscription required; visit

13
contrib/libtests/pngstest.c
View File

@@ -3173,7 +3173,9 @@ 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)
{
if ((unsigned long int)cb <= (size_t)~(size_t)0)
{
png_bytep b = voidcast(png_bytep, malloc((size_t)cb));
@@ -3201,6 +3203,15 @@ read_one_file(Image *image)
": out of memory: ");
}
else
return logclose(image, f, image->file_name,
": 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)
return logclose(image, f, image->file_name,
": zero length: ");