diff options
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_aux.c')
| -rw-r--r-- | src/3rdparty/libtiff/libtiff/tif_aux.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_aux.c b/src/3rdparty/libtiff/libtiff/tif_aux.c index 33fb8a4..8188db5 100644 --- a/src/3rdparty/libtiff/libtiff/tif_aux.c +++ b/src/3rdparty/libtiff/libtiff/tif_aux.c @@ -30,31 +30,28 @@ #include "tiffiop.h" #include "tif_predict.h" #include <math.h> +#include <float.h> uint32 _TIFFMultiply32(TIFF* tif, uint32 first, uint32 second, const char* where) { - uint32 bytes = first * second; - - if (second && bytes / second != first) { + if (second && first > TIFF_UINT32_MAX / second) { TIFFErrorExt(tif->tif_clientdata, where, "Integer overflow in %s", where); - bytes = 0; + return 0; } - return bytes; + return first * second; } uint64 _TIFFMultiply64(TIFF* tif, uint64 first, uint64 second, const char* where) { - uint64 bytes = first * second; - - if (second && bytes / second != first) { + if (second && first > TIFF_UINT64_MAX / second) { TIFFErrorExt(tif->tif_clientdata, where, "Integer overflow in %s", where); - bytes = 0; + return 0; } - return bytes; + return first * second; } tmsize_t @@ -396,6 +393,15 @@ _TIFFUInt64ToDouble(uint64 ui64) } } +float _TIFFClampDoubleToFloat( double val ) +{ + if( val > FLT_MAX ) + return FLT_MAX; + if( val < -FLT_MAX ) + return -FLT_MAX; + return (float)val; +} + int _TIFFSeekOK(TIFF* tif, toff_t off) { /* Huge offsets, especially -1 / UINT64_MAX, can cause issues */ |