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diff -u -r1.16 ppm2tiff.c
--- ./tools/ppm2tiff.c 10 Apr 2010 19:22:34 -0000 1.16
+++ ./tools/ppm2tiff.c 31 Oct 2012 06:25:13 -0000
@@ -89,6 +89,7 @@
int c;
extern int optind;
extern char* optarg;
+ size_t scanline_size;
if (argc < 2) {
fprintf(stderr, "%s: Too few arguments\n", argv[0]);
@@ -237,8 +238,16 @@
}
if (TIFFScanlineSize(out) > linebytes)
buf = (unsigned char *)_TIFFmalloc(linebytes);
- else
- buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
+ else {
+ scanline_size = TIFFScanlineSize(out);
+ if (scanline_size != 0)
+ buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
+ else {
+ fprintf(stderr, "%s: scanline size overflow\n",infile);
+ (void) TIFFClose(out);
+ exit(-2);
+ }
+ }
if (resolution > 0) {
TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution);
TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution);
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