shithub: jbig2

Download patch

ref: 674d8f53697d25624c7677e2eba01804a35fe669
parent: 80576e0a275d83a6bcd344265bdeeb85efb08176
author: Julian Smith <jules@op59.net>
date: Thu Nov 21 12:16:27 EST 2019

Coverity 350198: fixed jbig2_error() printf format / type mismatches.

Unfortunately stdint_.h isn't available to jbig2dec code so we can't use
PRIdSIZE. Have instead used %li with a cast to long.

[This commit addresses all printf warnings from gcc -W -Wall; it probably fixes
multiple similar coverity issues.]

--- a/jbig2_symbol_dict.c
+++ b/jbig2_symbol_dict.c
@@ -664,14 +664,14 @@
 
                 /* SumatraPDF: prevent read access violation */
                 if (size < jbig2_huffman_offset(hs) || (size - jbig2_huffman_offset(hs) < (size_t) image->height * stride) || (size < jbig2_huffman_offset(hs))) {
-                    jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "not enough data for decoding uncompressed (%d/%d)", image->height * stride,
-                                size - jbig2_huffman_offset(hs));
+                    jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "not enough data for decoding uncompressed (%d/%li)", image->height * stride,
+                                (long) (size - jbig2_huffman_offset(hs)));
                     goto cleanup;
                 }
 
                 BMSIZE = (size_t) image->height * stride;
                 jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, segment->number,
-                            "reading %dx%d uncompressed bitmap for %d symbols (%d bytes)", image->width, image->height, NSYMSDECODED - HCFIRSTSYM, BMSIZE);
+                            "reading %dx%d uncompressed bitmap for %d symbols (%li bytes)", image->width, image->height, NSYMSDECODED - HCFIRSTSYM, (long) BMSIZE);
 
                 for (j = 0; j < image->height; j++) {
                     memcpy(dst, src, stride);
@@ -683,12 +683,12 @@
 
                 /* SumatraPDF: prevent read access violation */
                 if (size < jbig2_huffman_offset(hs) || size < BMSIZE || size - jbig2_huffman_offset(hs) < BMSIZE) {
-                    jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "not enough data for decoding (%d/%d)", BMSIZE, size - jbig2_huffman_offset(hs));
+                    jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "not enough data for decoding (%li/%li)", (long) BMSIZE, (long) (size - jbig2_huffman_offset(hs)));
                     goto cleanup;
                 }
 
                 jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, segment->number,
-                            "reading %dx%d collective bitmap for %d symbols (%d bytes)", image->width, image->height, NSYMSDECODED - HCFIRSTSYM, BMSIZE);
+                            "reading %dx%d collective bitmap for %d symbols (%li bytes)", image->width, image->height, NSYMSDECODED - HCFIRSTSYM, (long) BMSIZE);
 
                 rparams.MMR = 1;
                 code = jbig2_decode_generic_mmr(ctx, segment, &rparams, data + jbig2_huffman_offset(hs), BMSIZE, image);