diff options
Diffstat (limited to 'ext/gd/gd.c')
| -rw-r--r-- | ext/gd/gd.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/ext/gd/gd.c b/ext/gd/gd.c index d0eea0bd0b..d2655a6022 100644 --- a/ext/gd/gd.c +++ b/ext/gd/gd.c @@ -1537,11 +1537,11 @@ PHP_FUNCTION(imagetruecolortopalette) RETURN_FALSE; } - if (ncolors <= 0) { - php_error_docref(NULL, E_WARNING, "Number of colors has to be greater than zero"); + if (ncolors <= 0 || ZEND_LONG_INT_OVFL(ncolors)) { + php_error_docref(NULL, E_WARNING, "Number of colors has to be greater than zero and no more than %d", INT_MAX); RETURN_FALSE; } - gdImageTrueColorToPalette(im, dither, ncolors); + gdImageTrueColorToPalette(im, dither, (int)ncolors); RETURN_TRUE; } @@ -3039,6 +3039,11 @@ PHP_FUNCTION(imagegammacorrect) return; } + if ( input <= 0.0 || output <= 0.0 ) { + php_error_docref(NULL TSRMLS_CC, E_WARNING, "Gamma values should be positive"); + RETURN_FALSE; + } + if ((im = (gdImagePtr)zend_fetch_resource(Z_RES_P(IM), "Image", le_gd)) == NULL) { RETURN_FALSE; } |