diff options
Diffstat (limited to 'tiff/tools/tiff2bw.c')
| -rw-r--r-- | tiff/tools/tiff2bw.c | 50 |
1 files changed, 43 insertions, 7 deletions
diff --git a/tiff/tools/tiff2bw.c b/tiff/tools/tiff2bw.c index dad54afa..dbc697b0 100644 --- a/tiff/tools/tiff2bw.c +++ b/tiff/tools/tiff2bw.c @@ -1,5 +1,3 @@ -/* $Id: tiff2bw.c,v 1.21 2017-11-01 13:41:58 bfriesen Exp $ */ - /* * Copyright (c) 1988-1997 Sam Leffler * Copyright (c) 1991-1997 Silicon Graphics, Inc. @@ -40,9 +38,7 @@ #endif #include "tiffio.h" - -#define streq(a,b) (strcmp((a),(b)) == 0) -#define strneq(a,b,n) (strncmp(a,b,n) == 0) +#include "tiffiop.h" /* x% weighting -> fraction of full color */ #define PCT(x) (((x)*256+50)/100) @@ -223,6 +219,11 @@ main(int argc, char* argv[]) TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing); TIFFSetField(out, TIFFTAG_SOFTWARE, "tiff2bw"); outbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out)); + if( !outbuf ) + { + fprintf(stderr, "Out of memory\n"); + goto tiff2bw_error; + } TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize(out, rowsperstrip)); @@ -246,6 +247,11 @@ main(int argc, char* argv[]) #undef CVT } inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); + if( !inbuf ) + { + fprintf(stderr, "Out of memory\n"); + goto tiff2bw_error; + } for (row = 0; row < h; row++) { if (TIFFReadScanline(in, inbuf, row, 0) < 0) break; @@ -256,6 +262,11 @@ main(int argc, char* argv[]) break; case pack(PHOTOMETRIC_RGB, PLANARCONFIG_CONTIG): inbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); + if( !inbuf ) + { + fprintf(stderr, "Out of memory\n"); + goto tiff2bw_error; + } for (row = 0; row < h; row++) { if (TIFFReadScanline(in, inbuf, row, 0) < 0) break; @@ -265,8 +276,16 @@ main(int argc, char* argv[]) } break; case pack(PHOTOMETRIC_RGB, PLANARCONFIG_SEPARATE): + { + tmsize_t inbufsize; rowsize = TIFFScanlineSize(in); - inbuf = (unsigned char *)_TIFFmalloc(3*rowsize); + inbufsize = TIFFSafeMultiply(tmsize_t, 3, rowsize); + inbuf = (unsigned char *)_TIFFmalloc(inbufsize); + if( !inbuf ) + { + fprintf(stderr, "Out of memory\n"); + goto tiff2bw_error; + } for (row = 0; row < h; row++) { for (s = 0; s < 3; s++) if (TIFFReadScanline(in, @@ -278,6 +297,7 @@ main(int argc, char* argv[]) break; } break; + } } #undef pack if (inbuf) @@ -452,7 +472,23 @@ cpTags(TIFF* in, TIFF* out) { struct cpTag *p; for (p = tags; p < &tags[NTAGS]; p++) - cpTag(in, out, p->tag, p->count, p->type); + { + if( p->tag == TIFFTAG_GROUP3OPTIONS ) + { + uint16 compression; + if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) || + compression != COMPRESSION_CCITTFAX3 ) + continue; + } + if( p->tag == TIFFTAG_GROUP4OPTIONS ) + { + uint16 compression; + if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) || + compression != COMPRESSION_CCITTFAX4 ) + continue; + } + cpTag(in, out, p->tag, p->count, p->type); + } } #undef NTAGS |