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netpbm/SOURCES/netpbm-security-code.patch

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diff -ruNp a/analyzer/pgmtexture.c b/analyzer/pgmtexture.c
--- a/analyzer/pgmtexture.c 2021-06-02 15:53:59.866205957 +0200
+++ b/analyzer/pgmtexture.c 2021-06-02 16:13:04.906252648 +0200
@@ -54,6 +54,7 @@ vector(unsigned int const nl,
assert(nh >= nl);
+ overflow_add(nh - nl, 1);
MALLOCARRAY(v, (unsigned) (nh - nl + 1));
if (v == NULL)
@@ -85,6 +86,7 @@ matrix (unsigned int const nrl,
assert(nrh >= nrl);
/* allocate pointers to rows */
+ overflow_add(nrh - nrl, 1);
MALLOCARRAY(m, (unsigned) (nrh - nrl + 1));
if (m == NULL)
pm_error("Unable to allocate memory for a matrix.");
@@ -93,6 +95,7 @@ matrix (unsigned int const nrl,
assert (nch >= ncl);
+ overflow_add(nch - ncl, 1);
/* allocate rows and set pointers to them */
for (i = nrl; i <= nrh; ++i) {
MALLOCARRAY(m[i], (unsigned) (nch - ncl + 1));
diff -ruNp a/converter/other/gemtopnm.c b/converter/other/gemtopnm.c
--- a/converter/other/gemtopnm.c 2021-06-02 15:53:59.835205659 +0200
+++ b/converter/other/gemtopnm.c 2021-06-02 16:15:29.598641385 +0200
@@ -106,6 +106,7 @@ main(argc, argv)
pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 );
+ overflow_add(cols, padright);
{
/* allocate input row data structure */
int plane;
diff -ruNp a/converter/other/jpegtopnm.c b/converter/other/jpegtopnm.c
--- a/converter/other/jpegtopnm.c 2021-06-02 15:53:59.833205640 +0200
+++ b/converter/other/jpegtopnm.c 2021-06-02 16:16:28.520206914 +0200
@@ -862,6 +862,8 @@ convertImage(FILE *
/* Calculate output image dimensions so we can allocate space */
jpeg_calc_output_dimensions(cinfoP);
+ overflow2(cinfoP->output_width, cinfoP->output_components);
+
/* Start decompressor */
jpeg_start_decompress(cinfoP);
diff -ruNp a/converter/other/pbmtopgm.c b/converter/other/pbmtopgm.c
--- a/converter/other/pbmtopgm.c 2021-06-02 15:53:59.831205621 +0200
+++ b/converter/other/pbmtopgm.c 2021-06-02 16:17:14.248645808 +0200
@@ -60,6 +60,7 @@ main(int argc, char *argv[]) {
outrow = pgm_allocrow(cols) ;
+ overflow2(width, height);
maxval = MIN(PGM_OVERALLMAXVAL, width*height);
pgm_writepgminit(stdout, cols, rows, maxval, 0) ;
diff -ruNp a/converter/other/pnmtoddif.c b/converter/other/pnmtoddif.c
--- a/converter/other/pnmtoddif.c 2021-06-02 15:53:59.832205630 +0200
+++ b/converter/other/pnmtoddif.c 2021-06-02 16:18:17.064248709 +0200
@@ -629,6 +629,7 @@ main(int argc, char *argv[]) {
switch (PNM_FORMAT_TYPE(format)) {
case PBM_TYPE:
ip.bits_per_pixel = 1;
+ overflow_add(cols, 7);
ip.bytes_per_line = (cols + 7) / 8;
ip.spectral = 2;
ip.components = 1;
@@ -644,6 +645,7 @@ main(int argc, char *argv[]) {
ip.polarity = 2;
break;
case PPM_TYPE:
+ overflow2(cols, 3);
ip.bytes_per_line = 3 * cols;
ip.bits_per_pixel = 24;
ip.spectral = 5;
diff -ruNp a/converter/other/pnmtojpeg.c b/converter/other/pnmtojpeg.c
--- a/converter/other/pnmtojpeg.c 2021-06-02 15:53:59.835205659 +0200
+++ b/converter/other/pnmtojpeg.c 2021-06-02 19:57:44.413225834 +0200
@@ -606,7 +606,11 @@ read_scan_script(j_compress_ptr const ci
want JPOOL_PERMANENT.
*/
const unsigned int scan_info_size = nscans * sizeof(jpeg_scan_info);
- jpeg_scan_info * const scan_info =
+ const jpeg_scan_info * scan_info;
+
+ overflow2(nscans, sizeof(jpeg_scan_info));
+
+ scan_info =
(jpeg_scan_info *)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
scan_info_size);
@@ -938,6 +942,9 @@ compute_rescaling_array(JSAMPLE ** const
const long half_maxval = maxval / 2;
long val;
+ overflow_add(maxval, 1);
+ overflow2(maxval+1, sizeof(JSAMPLE));
+
*rescale_p = (JSAMPLE *)
(cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_IMAGE,
(size_t) (((long) maxval + 1L) *
@@ -1016,6 +1023,7 @@ convert_scanlines(struct jpeg_compress_s
*/
/* Allocate the libpnm output and compressor input buffers */
+ overflow2(cinfo_p->image_width, cinfo_p->input_components);
buffer = (*cinfo_p->mem->alloc_sarray)
((j_common_ptr) cinfo_p, JPOOL_IMAGE,
(unsigned int) cinfo_p->image_width * cinfo_p->input_components,
diff -ruNp a/converter/other/pnmtops.c b/converter/other/pnmtops.c
--- a/converter/other/pnmtops.c 2021-06-02 15:53:59.835205659 +0200
+++ b/converter/other/pnmtops.c 2021-06-02 20:02:06.055502227 +0200
@@ -294,17 +294,21 @@ parseCommandLine(int argc, const char **
validateCompDimension(width, 72, "-width value");
validateCompDimension(height, 72, "-height value");
+ overflow2(width, 72);
cmdlineP->width = width * 72;
+ overflow2(height, 72);
cmdlineP->height = height * 72;
if (imagewidthSpec) {
validateCompDimension(imagewidth, 72, "-imagewidth value");
+ overflow2(imagewidth, 72);
cmdlineP->imagewidth = imagewidth * 72;
}
else
cmdlineP->imagewidth = 0;
if (imageheightSpec) {
- validateCompDimension(imagewidth, 72, "-imageheight value");
+ validateCompDimension(imageheight, 72, "-imageheight value");
+ overflow2(imageheight, 72);
cmdlineP->imageheight = imageheight * 72;
}
else
diff -ruNp a/converter/other/rletopnm.c b/converter/other/rletopnm.c
--- a/converter/other/rletopnm.c 2021-06-02 15:53:59.834205650 +0200
+++ b/converter/other/rletopnm.c 2021-06-02 20:03:24.864187893 +0200
@@ -19,6 +19,8 @@
* If you modify this software, you should include a notice giving the
* name of the person performing the modification, the date of modification,
* and the reason for such modification.
+ *
+ * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com>
*/
/*
* rletopnm - A conversion program to convert from Utah's "rle" image format
diff -ruNp a/converter/other/sirtopnm.c b/converter/other/sirtopnm.c
--- a/converter/other/sirtopnm.c 2021-06-02 15:53:59.833205640 +0200
+++ b/converter/other/sirtopnm.c 2021-06-02 20:03:50.280409024 +0200
@@ -69,6 +69,7 @@ char* argv[];
}
break;
case PPM_TYPE:
+ overflow3(cols, rows, 3);
picsize = cols * rows * 3;
planesize = cols * rows;
if ( !( sirarray = (unsigned char*) malloc( picsize ) ) )
diff -ruNp a/converter/other/tifftopnm.c b/converter/other/tifftopnm.c
--- a/converter/other/tifftopnm.c 2021-06-02 15:53:59.834205650 +0200
+++ b/converter/other/tifftopnm.c 2021-06-02 20:04:47.721908789 +0200
@@ -1372,7 +1372,9 @@ convertRasterByRows(pnmOut * const
if (scanbuf == NULL)
pm_error("can't allocate memory for scanline buffer");
- MALLOCARRAY(samplebuf, cols * spp);
+ /* samplebuf is unsigned int * !!! */
+ samplebuf = (unsigned int *) malloc3(cols , sizeof(unsigned int) , spp);
+
if (samplebuf == NULL)
pm_error("can't allocate memory for row buffer");
diff -ruNp a/converter/other/xwdtopnm.c b/converter/other/xwdtopnm.c
--- a/converter/other/xwdtopnm.c 2021-06-02 15:53:59.833205640 +0200
+++ b/converter/other/xwdtopnm.c 2021-06-02 20:23:21.807634239 +0200
@@ -210,6 +210,10 @@ processX10Header(X10WDFileHeader * cons
*colorsP = pnm_allocrow(2);
PNM_ASSIGN1((*colorsP)[0], 0);
PNM_ASSIGN1((*colorsP)[1], *maxvalP);
+ overflow_add(h10P->pixmap_width, 15);
+ if(h10P->pixmap_width < 0)
+ pm_error("assert: negative width");
+ overflow2((((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width), 8);
*padrightP =
(((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width) * 8;
*bits_per_itemP = 16;
@@ -635,6 +639,7 @@ processX11Header(X11WDFileHeader * cons
*colsP = h11FixedP->pixmap_width;
*rowsP = h11FixedP->pixmap_height;
+ overflow2(h11FixedP->bytes_per_line, 8);
*padrightP =
h11FixedP->bytes_per_line * 8 -
h11FixedP->pixmap_width * h11FixedP->bits_per_pixel;
diff -ruNp a/converter/pbm/mdatopbm.c b/converter/pbm/mdatopbm.c
--- a/converter/pbm/mdatopbm.c 2021-06-02 15:53:59.826205573 +0200
+++ b/converter/pbm/mdatopbm.c 2021-06-02 20:23:21.807634239 +0200
@@ -245,10 +245,13 @@ main(int argc, char **argv) {
pm_readlittleshort(infile, &yy); nInCols = yy;
}
+ overflow2(nOutCols, 8);
nOutCols = 8 * nInCols;
nOutRows = nInRows;
- if (bScale)
+ if (bScale) {
+ overflow2(nOutRows, 2);
nOutRows *= 2;
+ }
data = pbm_allocarray(nOutCols, nOutRows);
diff -ruNp a/converter/pbm/mgrtopbm.c b/converter/pbm/mgrtopbm.c
--- a/converter/pbm/mgrtopbm.c 2021-06-02 15:53:59.828205592 +0200
+++ b/converter/pbm/mgrtopbm.c 2021-06-02 20:23:21.808634248 +0200
@@ -65,6 +65,8 @@ readMgrHeader(FILE * const ifP,
if (head.h_high < ' ' || head.l_high < ' ')
pm_error("Invalid width field in MGR header");
+ overflow_add(*colsP, pad);
+
*colsP = (((int)head.h_wide - ' ') << 6) + ((int)head.l_wide - ' ');
*rowsP = (((int)head.h_high - ' ') << 6) + ((int) head.l_high - ' ');
*padrightP = ( ( *colsP + pad - 1 ) / pad ) * pad - *colsP;
diff -ruNp a/converter/pbm/pbmtogem.c b/converter/pbm/pbmtogem.c
--- a/converter/pbm/pbmtogem.c 2021-06-02 15:53:59.828205592 +0200
+++ b/converter/pbm/pbmtogem.c 2021-06-02 20:23:21.809634256 +0200
@@ -79,6 +79,7 @@ putinit (int const rows, int const cols)
bitsperitem = 0;
bitshift = 7;
outcol = 0;
+ overflow_add(cols, 7);
outmax = (cols + 7) / 8;
outrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
lastrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char));
diff -ruNp a/converter/pbm/pbmtogo.c b/converter/pbm/pbmtogo.c
--- a/converter/pbm/pbmtogo.c 2021-06-02 15:53:59.826205573 +0200
+++ b/converter/pbm/pbmtogo.c 2021-06-02 20:23:21.809634256 +0200
@@ -158,6 +158,7 @@ main(int argc,
bitrow = pbm_allocrow(cols);
/* Round cols up to the nearest multiple of 8. */
+ overflow_add(cols, 7);
rucols = ( cols + 7 ) / 8;
bytesperrow = rucols; /* GraphOn uses bytes */
rucols = rucols * 8;
diff -ruNp a/converter/pbm/pbmtolj.c b/converter/pbm/pbmtolj.c
--- a/converter/pbm/pbmtolj.c 2021-06-02 15:53:59.828205592 +0200
+++ b/converter/pbm/pbmtolj.c 2021-06-02 20:23:21.810634265 +0200
@@ -120,7 +120,11 @@ parseCommandLine(int argc, char ** argv,
static void
allocateBuffers(unsigned int const cols) {
+ overflow_add(cols, 8);
rowBufferSize = (cols + 7) / 8;
+ overflow_add(rowBufferSize, 128);
+ overflow_add(rowBufferSize, rowBufferSize+128);
+ overflow_add(rowBufferSize+10, rowBufferSize/8);
packBufferSize = rowBufferSize + (rowBufferSize + 127) / 128 + 1;
deltaBufferSize = rowBufferSize + rowBufferSize / 8 + 10;
diff -ruNp a/converter/pbm/pbmtomda.c b/converter/pbm/pbmtomda.c
--- a/converter/pbm/pbmtomda.c 2021-06-02 15:53:59.827205582 +0200
+++ b/converter/pbm/pbmtomda.c 2021-06-02 20:23:21.810634265 +0200
@@ -179,6 +179,7 @@ int main(int argc, char **argv)
nOutRowsUnrounded = bScale ? nInRows/2 : nInRows;
+ overflow_add(nOutRowsUnrounded, 3);
nOutRows = ((nOutRowsUnrounded + 3) / 4) * 4;
/* MDA wants rows a multiple of 4 */
nOutCols = nInCols / 8;
diff -ruNp a/converter/pbm/pbmtoppa/pbm.c b/converter/pbm/pbmtoppa/pbm.c
--- a/converter/pbm/pbmtoppa/pbm.c 2021-06-02 15:53:59.830205611 +0200
+++ b/converter/pbm/pbmtoppa/pbm.c 2021-06-02 20:23:21.811634274 +0200
@@ -11,185 +11,128 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <limits.h>
-#include "pm.h"
-#include "nstring.h"
#include "ppapbm.h"
-int
-make_pbm_stat(pbm_stat * const pbmStatP,
- FILE * const ifP) {
-
- char line[1024];
- char * rc;
- int retval;
-
- pbmStatP->fptr = ifP;
- pbmStatP->version = none;
- pbmStatP->current_line = 0;
- pbmStatP->unread = 0;
-
- rc = fgets(line, 1024, ifP);
- if (rc == NULL)
- retval = 0;
- else {
- line[strlen(line)-1] = 0;
-
- if (streq(line,"P1"))
- pbmStatP->version=P1;
- if (streq(line,"P4"))
- pbmStatP->version=P4;
-
- if (pbmStatP->version == none) {
- pm_message("unknown PBM magic '%s'", line);
- retval = 0;
- } else {
- do {
- char * rc;
- rc = fgets(line, 1024, ifP);
- if (rc == NULL)
- return 0;
- } while (line[0] == '#');
- {
- int rc;
- rc = sscanf(line, "%d %d",
- &pbmStatP->width, &pbmStatP->height);
- if (rc != 2)
- retval = 0;
- else {
- if (pbmStatP->width < 0) {
- pm_message("Image has negative width");
- retval = 0;
- } else if (pbmStatP->width > INT_MAX/2) {
- pm_message("Uncomputeably large width: %d",
- pbmStatP->width);
- retval = 0;
- } else if (pbmStatP->height < 0) {
- pm_message("Image has negative height");
- retval = 0;
- } else if (pbmStatP->height > INT_MAX/2) {
- pm_message("Uncomputeably large height: %d",
- pbmStatP->height);
- retval = 0;
- } else
- retval = 1;
- }
- }
- }
- }
- return retval;
-}
-
+int make_pbm_stat(pbm_stat* pbm,FILE* fptr)
+{
+ char line[1024];
+
+ pbm->fptr=fptr;
+ pbm->version=none;
+ pbm->current_line=0;
+ pbm->unread = 0;
+
+ if (fgets (line, 1024, fptr) == NULL)
+ return 0;
+ line[strlen(line)-1] = 0;
+
+ if(!strcmp(line,"P1")) pbm->version=P1;
+ if(!strcmp(line,"P4")) pbm->version=P4;
+ if(pbm->version == none)
+ {
+ fprintf(stderr,"pbm_readheader(): unknown PBM magic '%s'\n",line);
+ return 0;
+ }
+
+ do
+ if (fgets (line, 1024, fptr) == NULL)
+ return 0;
+ while (line[0] == '#');
+ if (2 != sscanf (line, "%d %d", &pbm->width, &pbm->height))
+ return 0;
-static int
-getbytes(FILE * const ifP,
- unsigned int const width,
- unsigned char * const data) {
-
- unsigned char mask;
- unsigned char acc;
- unsigned char * place;
- unsigned int num;
- int retval;
-
- if (width == 0)
- retval = 0;
- else {
- for (mask = 0x80, acc = 0, num = 0, place = data; num < width; ) {
- switch (getc(ifP)) {
- case EOF:
- return 0;
- case '1':
- acc |= mask;
- /* fall through */
- case '0':
- mask >>= 1;
- ++num;
- if (mask == 0x00) { /* if (num % 8 == 0) */
- *place++ = acc;
- acc = 0;
- mask = 0x80;
- }
- }
- }
- if (width % 8 != 0)
- *place = acc;
-
- retval = 1;
- }
- return retval;
+ return 1;
}
-
-
-int
-pbm_readline(pbm_stat * const pbmStatP,
- unsigned char * const data) {
-/*----------------------------------------------------------------------------
- Read a single line into data which must be at least (pbmStatP->width+7)/8
- bytes of storage.
------------------------------------------------------------------------------*/
- int retval;
-
- if (pbmStatP->current_line >= pbmStatP->height)
- retval = 0;
- else {
- if (pbmStatP->unread) {
- memcpy(data, pbmStatP->revdata, (pbmStatP->width+7)/8);
- ++pbmStatP->current_line;
- pbmStatP->unread = 0;
- free(pbmStatP->revdata);
- pbmStatP->revdata = NULL;
- retval = 1;
- } else {
- switch (pbmStatP->version) {
- case P1:
- if (getbytes(pbmStatP->fptr, pbmStatP->width, data)) {
- pbmStatP->current_line++;
- retval = 1;
- } else
- retval = 0;
- break;
- case P4: {
- int tmp, tmp2;
- tmp = (pbmStatP->width+7)/8;
- tmp2 = fread(data,1,tmp,pbmStatP->fptr);
- if (tmp2 == tmp) {
- ++pbmStatP->current_line;
- retval = 1;
- } else {
- pm_message("error reading line data (%d)", tmp2);
- retval = 0;
- }
- } break;
-
- default:
- pm_message("unknown PBM version");
- retval = 0;
- }
- }
+static int getbytes(FILE *fptr,int width,unsigned char* data)
+{
+ unsigned char mask,acc,*place;
+ int num;
+
+ if(!width) return 0;
+ for(mask=0x80, acc=0, num=0, place=data; num<width; )
+ {
+ switch(getc(fptr))
+ {
+ case EOF:
+ return 0;
+ case '1':
+ acc|=mask;
+ /* fall through */
+ case '0':
+ mask>>=1;
+ num++;
+ if(!mask) /* if(num%8 == 0) */
+ {
+ *place++ = acc;
+ acc=0;
+ mask=0x80;
+ }
}
- return retval;
+ }
+ if(width%8)
+ *place=acc;
+ return 1;
}
+/* Reads a single line into data which must be at least (pbm->width+7)/8
+ bytes of storage */
+int pbm_readline(pbm_stat* pbm,unsigned char* data)
+{
+ int tmp,tmp2;
+
+ if(pbm->current_line >= pbm->height) return 0;
+
+ if (pbm->unread)
+ {
+ memcpy (data, pbm->revdata, (pbm->width+7)/8);
+ pbm->current_line++;
+ pbm->unread = 0;
+ free (pbm->revdata);
+ pbm->revdata = NULL;
+ return 1;
+ }
+ switch(pbm->version)
+ {
+ case P1:
+ if(getbytes(pbm->fptr,pbm->width,data))
+ {
+ pbm->current_line++;
+ return 1;
+ }
+ return 0;
-void
-pbm_unreadline(pbm_stat * const pbmStatP,
- void * const data) {
-/*----------------------------------------------------------------------------
- Push a line back into the buffer; we read too much!
------------------------------------------------------------------------------*/
- /* can store only one line in the unread buffer */
-
- if (!pbmStatP->unread) {
- pbmStatP->unread = 1;
- pbmStatP->revdata = malloc ((pbmStatP->width+7)/8);
- memcpy(pbmStatP->revdata, data, (pbmStatP->width+7)/8);
- --pbmStatP->current_line;
+ case P4:
+ overflow_add(pbm->width, 7);
+ tmp=(pbm->width+7)/8;
+ tmp2=fread(data,1,tmp,pbm->fptr);
+ if(tmp2 == tmp)
+ {
+ pbm->current_line++;
+ return 1;
}
-}
+ fprintf(stderr,"pbm_readline(): error reading line data (%d)\n",tmp2);
+ return 0;
+ default:
+ fprintf(stderr,"pbm_readline(): unknown PBM version\n");
+ return 0;
+ }
+}
+/* push a line back into the buffer; we read too much! */
+void pbm_unreadline (pbm_stat *pbm, void *data)
+{
+ /* can only store one line in the unread buffer */
+ if (pbm->unread)
+ return;
+
+ pbm->unread = 1;
+ overflow_add(pbm->width, 7);
+ pbm->revdata = malloc ((pbm->width+7)/8);
+ memcpy (pbm->revdata, data, (pbm->width+7)/8);
+ pbm->current_line--;
+}
diff -ruNp a/converter/pbm/pbmtoppa/pbmtoppa.c b/converter/pbm/pbmtoppa/pbmtoppa.c
--- a/converter/pbm/pbmtoppa/pbmtoppa.c 2021-06-02 15:53:59.829205601 +0200
+++ b/converter/pbm/pbmtoppa/pbmtoppa.c 2021-06-02 20:23:21.811634274 +0200
@@ -453,6 +453,7 @@ main(int argc, char *argv[]) {
pm_error("main(): unrecognized parameter '%s'", argv[argn]);
}
+ overflow_add(Width, 7);
Pwidth=(Width+7)/8;
printer.fptr=out;
diff -ruNp a/converter/pbm/pbmtoxbm.c b/converter/pbm/pbmtoxbm.c
--- a/converter/pbm/pbmtoxbm.c 2021-06-02 15:53:59.829205601 +0200
+++ b/converter/pbm/pbmtoxbm.c 2021-06-02 20:23:21.812634282 +0200
@@ -352,6 +352,8 @@ convertRaster(FILE * const ifP,
unsigned char * bitrow;
unsigned int row;
+
+ overflow_add(cols, padright);
putinit(xbmVersion);
diff -ruNp a/converter/pbm/pbmto4425.c b/converter/pbm/pbmto4425.c
--- a/converter/pbm/pbmto4425.c 2021-06-02 15:53:59.827205582 +0200
+++ b/converter/pbm/pbmto4425.c 2021-06-02 20:23:21.808634248 +0200
@@ -2,6 +2,7 @@
#include "nstring.h"
#include "pbm.h"
+#include <string.h>
static char bit_table[2][3] = {
{1, 4, 0x10},
@@ -160,7 +161,7 @@ main(int argc, char * argv[]) {
xres = vmap_width * 2;
yres = vmap_height * 3;
- vmap = malloc(vmap_width * vmap_height * sizeof(char));
+ vmap = malloc3(vmap_width, vmap_height, sizeof(char));
if(vmap == NULL)
{
pm_error( "Cannot allocate memory" );
diff -ruNp a/converter/pbm/pktopbm.c b/converter/pbm/pktopbm.c
--- a/converter/pbm/pktopbm.c 2021-06-02 15:53:59.828205592 +0200
+++ b/converter/pbm/pktopbm.c 2021-06-02 20:23:21.813634291 +0200
@@ -280,6 +280,7 @@ main(int argc, char *argv[]) {
if (flagbyte == 7) { /* long form preamble */
integer packetlength = get32() ; /* character packet length */
car = get32() ; /* character number */
+ overflow_add(packetlength, pktopbm_pkloc);
endofpacket = packetlength + pktopbm_pkloc;
/* calculate end of packet */
if ((car >= MAXPKCHAR) || !filename[car]) {
diff -ruNp a/converter/pbm/thinkjettopbm.l b/converter/pbm/thinkjettopbm.l
--- a/converter/pbm/thinkjettopbm.l 2021-06-02 15:53:59.828205592 +0200
+++ b/converter/pbm/thinkjettopbm.l 2021-06-02 20:23:21.813634291 +0200
@@ -114,7 +114,9 @@ DIG [0-9]
<RASTERMODE>\033\*b{DIG}+W {
int l;
if (rowCount >= rowCapacity) {
- rowCapacity += 100;
+ overflow_add(rowCapacity, 100);
+ rowCapacity += 100;
+ overflow2(rowCapacity, sizeof *rows);
rows = realloc (rows, rowCapacity * sizeof *rows);
if (rows == NULL)
pm_error ("Out of memory.");
@@ -226,6 +228,8 @@ yywrap (void)
/*
* Quite simple since ThinkJet bit arrangement matches PBM
*/
+
+ overflow2(maxRowLength, 8);
pbm_writepbminit(stdout, maxRowLength*8, rowCount, 0);
packed_bitrow = malloc(maxRowLength);
diff -ruNp a/converter/pbm/ybmtopbm.c b/converter/pbm/ybmtopbm.c
--- a/converter/pbm/ybmtopbm.c 2021-06-02 15:53:59.827205582 +0200
+++ b/converter/pbm/ybmtopbm.c 2021-06-02 20:23:21.814634300 +0200
@@ -43,6 +43,7 @@ getinit(FILE * const ifP,
pm_error("EOF / read error");
*depthP = 1;
+ overflow_add(*colsP, 15);
}
diff -ruNp a/converter/pgm/lispmtopgm.c b/converter/pgm/lispmtopgm.c
--- a/converter/pgm/lispmtopgm.c 2021-06-02 15:53:59.831205621 +0200
+++ b/converter/pgm/lispmtopgm.c 2021-06-02 20:23:21.814634300 +0200
@@ -58,6 +58,7 @@ main( argc, argv )
pm_error( "depth (%d bits) is too large", depth);
pgm_writepgminit( stdout, cols, rows, (gray) maxval, 0 );
+ overflow_add(cols, 7);
grayrow = pgm_allocrow( ( cols + 7 ) / 8 * 8 );
for ( row = 0; row < rows; ++row )
@@ -102,6 +103,8 @@ getinit( file, colsP, rowsP, depthP, pad
if ( *depthP == 0 )
*depthP = 1; /* very old file */
+
+ overflow_add((int)colsP, 31);
*padrightP = ( ( *colsP + 31 ) / 32 ) * 32 - *colsP;
diff -ruNp a/converter/pgm/psidtopgm.c b/converter/pgm/psidtopgm.c
--- a/converter/pgm/psidtopgm.c 2021-06-02 15:53:59.830205611 +0200
+++ b/converter/pgm/psidtopgm.c 2021-06-02 20:23:21.815634309 +0200
@@ -78,6 +78,7 @@ main(int argc,
pm_error("bits/sample (%d) is too large.", bitspersample);
pgm_writepgminit(stdout, cols, rows, maxval, 0);
+ overflow_add(cols, 7);
grayrow = pgm_allocrow((cols + 7) / 8 * 8);
for (row = 0; row < rows; ++row) {
unsigned int col;
diff -ruNp a/converter/ppm/ilbmtoppm.c b/converter/ppm/ilbmtoppm.c
--- a/converter/ppm/ilbmtoppm.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ilbmtoppm.c 2021-06-02 20:23:21.817634326 +0200
@@ -608,6 +608,7 @@ decode_row(FILE * const ifP,
rawtype *chp;
cols = bmhdP->w;
+ overflow_add(cols, 15);
bytes = RowBytes(cols);
for( plane = 0; plane < nPlanes; plane++ ) {
int mask;
@@ -695,6 +696,23 @@ decode_mask(FILE * const ifP,
Multipalette handling
****************************************************************************/
+static void *
+xmalloc2(x, y)
+ int x;
+ int y;
+{
+ void *mem;
+
+ overflow2(x,y);
+ if( x * y == 0 )
+ return NULL;
+
+ mem = malloc2(x,y);
+ if( mem == NULL )
+ pm_error("out of memory allocating %d bytes", x * y);
+ return mem;
+}
+
static void
multi_adjust(ColorMap * const cmapP,
@@ -1363,6 +1381,9 @@ dcol_to_ppm(FILE * const ifP,
if( redmaxval != maxval || greenmaxval != maxval || bluemaxval != maxval )
pm_message("scaling colors to %d bits", pm_maxvaltobits(maxval));
+ overflow_add(redmaxval, 1);
+ overflow_add(greenmaxval, 1);
+ overflow_add(bluemaxval, 1);
MALLOCARRAY_NOFAIL(redtable, redmaxval +1);
MALLOCARRAY_NOFAIL(greentable, greenmaxval +1);
MALLOCARRAY_NOFAIL(bluetable, bluemaxval +1);
@@ -1802,7 +1823,9 @@ PCHG_ConvertSmall(PCHGHeader * const
ChangeCount32 = *data++;
remDataSize -= 2;
+ overflow_add(ChangeCount16, ChangeCount32);
changes = ChangeCount16 + ChangeCount32;
+ overflow_add(changes, 1);
for (i = 0; i < changes; ++i) {
if (totalchanges >= pchgP->TotalChanges) goto fail;
if (remDataSize < 2) goto fail;
@@ -2067,6 +2090,9 @@ read_pchg(FILE * const ifP,
cmap->mp_change[i] = NULL;
if( PCHG.StartLine < 0 ) {
int nch;
+ if(PCHG.MaxReg < PCHG.MinReg)
+ pm_error("assert: MinReg > MaxReg");
+ overflow_add(PCHG.MaxReg-PCHG.MinReg, 2);
nch = PCHG.MaxReg - PCHG.MinReg +1;
MALLOCARRAY_NOFAIL(cmap->mp_init, nch + 1);
for( i = 0; i < nch; i++ )
@@ -2143,6 +2169,7 @@ process_body( FILE * const ifP,
if (typeid == ID_ILBM) {
int isdeep;
+ overflow_add(bmhdP->w, 15);
MALLOCARRAY_NOFAIL(ilbmrow, RowBytes(bmhdP->w));
*viewportmodesP |= fakeviewport; /* -isham/-isehb */
diff -ruNp a/converter/ppm/imgtoppm.c b/converter/ppm/imgtoppm.c
--- a/converter/ppm/imgtoppm.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/imgtoppm.c 2021-06-02 20:23:21.818634335 +0200
@@ -84,6 +84,7 @@ main(int argc, char ** argv) {
len = atoi((char*) buf );
if ( fread( buf, len, 1, ifp ) != 1 )
pm_error( "bad colormap buf" );
+ overflow2(cmaplen, 3);
if ( cmaplen * 3 != len )
{
pm_message(
@@ -105,6 +106,7 @@ main(int argc, char ** argv) {
pm_error( "bad pixel data header" );
buf[8] = '\0';
len = atoi((char*) buf );
+ overflow2(cols, rows);
if ( len != cols * rows )
pm_message(
"pixel data length (%d) does not match image size (%d)",
diff -ruNp a/converter/ppm/Makefile b/converter/ppm/Makefile
--- a/converter/ppm/Makefile 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/Makefile 2021-06-02 20:23:21.815634309 +0200
@@ -11,7 +11,7 @@ SUBDIRS = hpcdtoppm ppmtompeg
PORTBINARIES = 411toppm eyuvtoppm gouldtoppm ilbmtoppm imgtoppm \
leaftoppm mtvtoppm neotoppm \
- pcxtoppm pc1toppm pi1toppm picttoppm pjtoppm \
+ pcxtoppm pc1toppm pi1toppm pjtoppm \
ppmtoacad ppmtoapplevol ppmtoarbtxt ppmtoascii \
ppmtobmp ppmtoeyuv ppmtogif ppmtoicr ppmtoilbm \
ppmtoleaf ppmtolj ppmtomitsu ppmtoneo \
diff -ruNp a/converter/ppm/pcxtoppm.c b/converter/ppm/pcxtoppm.c
--- a/converter/ppm/pcxtoppm.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/pcxtoppm.c 2021-06-02 20:23:21.818634335 +0200
@@ -409,6 +409,7 @@ pcx_planes_to_pixels(pixels, bitplanes,
/*
* clear the pixel buffer
*/
+ overflow2(bytesperline, 8);
npixels = (bytesperline * 8) / bitsperpixel;
p = pixels;
while (--npixels >= 0)
@@ -470,6 +471,7 @@ pcx_16col_to_ppm(FILE * const ifP,
}
/* BytesPerLine should be >= BitsPerPixel * cols / 8 */
+ overflow2(BytesPerLine, 8);
rawcols = BytesPerLine * 8 / BitsPerPixel;
if (headerCols > rawcols) {
pm_message("warning - BytesPerLine = %d, "
diff -ruNp a/converter/ppm/picttoppm.c b/converter/ppm/picttoppm.c
--- a/converter/ppm/picttoppm.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/picttoppm.c 2021-06-02 20:23:21.820634352 +0200
@@ -1,3 +1,4 @@
+#error "Unfixable. Don't ship me"
/*
* picttoppm.c -- convert a MacIntosh PICT file to PPM format.
*
diff -ruNp a/converter/ppm/pjtoppm.c b/converter/ppm/pjtoppm.c
--- a/converter/ppm/pjtoppm.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/pjtoppm.c 2021-06-02 20:23:21.821634361 +0200
@@ -10,98 +10,66 @@
** implied warranty.
*/
-#include <stdbool.h>
-
#include "ppm.h"
-#include "pm_c_util.h"
#include "mallocvar.h"
static char usage[] = "[paintjetfile]";
-
-
-static unsigned int
-uintProduct(unsigned int const multiplicand,
- unsigned int const multiplier) {
-
- if (UINT_MAX / multiplier < multiplicand)
- pm_error("Airthmetic overflow");
-
- return multiplicand * multiplier;
-}
-
-
-
+static int egetc ARGS((FILE *fp));
static int
-egetc(FILE * const ifP) {
+egetc(fp)
+ FILE *fp;
+{
int c;
-
- c = fgetc(ifP);
-
- if (c == -1)
+ if ((c = fgetc(fp)) == -1)
pm_error("unexpected end of file");
-
- return c;
+ return(c);
}
-
-
int
-main(int argc, const char ** argv) {
-
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
int cmd, val;
char buffer[BUFSIZ];
- int planes = 3;
- unsigned int rows;
- unsigned int rowsX;
- unsigned int cols;
- bool colsIsSet;
+ int planes = 3, rows = -1, cols = -1;
+ int r = 0, c = 0, p = 0, i;
unsigned char **image = NULL;
int *imlen;
- FILE * ifP;
+ FILE *fp = stdin;
int mode;
- bool modeIsSet;
int argn;
unsigned char bf[3];
- pixel * pixrow;
- int c;
- int row;
- int plane;
+ pixel *pixrow;
- pm_proginit(&argc, argv);
+ ppm_init(&argc, argv);
argn = 1;
if (argn != argc)
- ifP = pm_openr(argv[argn++]);
+ fp = pm_openr(argv[argn++]);
else
- ifP = stdin;
+ fp = stdin;
if (argn != argc)
pm_usage(usage);
- row = 0; /* initial value */
- plane = 0; /* initial value */
- modeIsSet = false; /* initial value */
- colsIsSet = false; /* initial value */
- rowsX = 0; /* initial value */
-
- while ((c = fgetc(ifP)) != -1) {
+ while ((c = fgetc(fp)) != -1) {
if (c != '\033')
continue;
- switch (c = egetc(ifP)) {
+ switch (c = egetc(fp)) {
case 'E': /* reset */
break;
- case '*': {
- unsigned int i;
- cmd = egetc(ifP);
+ case '*':
+ cmd = egetc(fp);
for (i = 0; i < BUFSIZ; i++) {
- if (!isdigit(c = egetc(ifP)) && c != '+' && c != '-')
+ if (!isdigit(c = egetc(fp)) && c != '+' && c != '-')
break;
buffer[i] = c;
}
if (i != 0) {
buffer[i] = '\0';
- if (sscanf(buffer, "%d", &val) != 1)
+ if (sscanf(buffer, "%d", &val) != 1)
pm_error("bad value `%s' at <ESC>*%c%c", buffer, cmd, c);
}
else
@@ -125,18 +93,18 @@ main(int argc, const char ** argv) {
case 'r':
switch (c) {
case 'S': /* width */
- if (val < 0)
+ if (val < 0) {
pm_error("invalid width value");
- else {
+ } else {
cols = val;
- colsIsSet = true;
}
break;
case 'T': /* height */
- if (val < 0)
+ if (val < 0) {
pm_error ("invalid height value");
- else
- rowsX = val;
+ } else {
+ rows = val;
+ }
break;
case 'U': /* planes */
planes = val;
@@ -163,40 +131,43 @@ main(int argc, const char ** argv) {
if (val != 0 && val != 1)
pm_error("unimplemented transmission mode %d", val);
mode = val;
- modeIsSet = true;
break;
case 'V': /* send plane */
case 'W': /* send last plane */
- if (row >= rowsX || image == NULL) {
- if (row >= rowsX)
- rowsX += 100;
+ if (rows == -1 || r >= rows || image == NULL) {
+ if (rows == -1 || r >= rows) {
+ overflow_add(rows, 100);
+ rows += 100;
+ }
+
if (image == NULL) {
- MALLOCARRAY(image, uintProduct(rowsX, planes));
- MALLOCARRAY(imlen, uintProduct(rowsX, planes));
- } else {
- REALLOCARRAY(image, uintProduct(rowsX, planes));
- REALLOCARRAY(imlen, uintProduct(rowsX, planes));
+ image = (unsigned char **)
+ malloc3(rows , planes , sizeof(unsigned char *));
+ imlen = (int *) malloc3(rows , planes, sizeof(int));
}
+ else {
+ overflow2(rows,planes);
+ image = (unsigned char **)
+ realloc2(image, rows * planes,
+ sizeof(unsigned char *));
+ imlen = (int *) realloc2(imlen, rows * planes, sizeof(int)); }
}
if (image == NULL || imlen == NULL)
pm_error("out of memory");
- if (plane >= planes)
+ if (p == planes)
pm_error("too many planes");
- if (!colsIsSet)
- pm_error("missing width value");
-
- cols = MAX(cols, val);
- imlen[row * planes + plane] = val;
- MALLOCARRAY(image[row * planes + plane], val);
- if (image[row * planes + plane] == NULL)
+ cols = cols > val ? cols : val;
+ imlen[r * planes + p] = val;
+ MALLOCARRAY(image[r * planes + p], val);
+ if (image[r * planes + p] == NULL)
pm_error("out of memory");
- if (fread(image[row * planes + plane], 1, val, ifP) != val)
+ if (fread(image[r * planes + p], 1, val, fp) != val)
pm_error("short data");
if (c == 'V')
- ++plane;
+ p++;
else {
- plane = 0;
- ++row;
+ p = 0;
+ r++;
}
break;
default:
@@ -205,7 +176,7 @@ main(int argc, const char ** argv) {
}
break;
case 'p': /* Position */
- if (plane != 0)
+ if (p != 0)
pm_error("changed position in the middle of "
"transferring planes");
switch (c) {
@@ -214,15 +185,15 @@ main(int argc, const char ** argv) {
break;
case 'Y':
if (buffer[0] == '+')
- val = row + val;
+ val = r + val;
if (buffer[0] == '-')
- val = row - val;
- for (; val > row; ++row)
- for (plane = 0; plane < 3; ++plane) {
- imlen[row * planes + plane] = 0;
- image[row * planes + plane] = NULL;
+ val = r - val;
+ for (; val > r; r++)
+ for (p = 0; p < 3; p++) {
+ imlen[r * planes + p] = 0;
+ image[r * planes + p] = NULL;
}
- row = val;
+ r = val;
break;
default:
pm_message("uninmplemented <ESC>*%c%d%c", cmd, val, c);
@@ -231,86 +202,65 @@ main(int argc, const char ** argv) {
default:
pm_message("uninmplemented <ESC>*%c%d%c", cmd, val, c);
break;
- }
- } /* case */
- } /* switch */
+ }
+ }
}
- pm_close(ifP);
-
- if (!modeIsSet)
- pm_error("Input does not contain a 'bM' transmission mode order");
-
- rows = row;
+ pm_close(fp);
+ rows = r;
if (mode == 1) {
- unsigned int const newcols = 10240;
- /* It could not be larger than that! */
-
- unsigned char * buf;
- unsigned int row;
-
- for (row = 0, cols = 0; row < rows; ++row) {
- unsigned int plane;
- if (image[row * planes] == NULL)
+ unsigned char *buf;
+ int newcols = 0;
+ newcols = 10240; /* It could not be larger that that! */
+ cols = 0;
+ for (r = 0; r < rows; r++) {
+ if (image[r * planes] == NULL)
continue;
- for (plane = 0; plane < planes; ++plane) {
- unsigned int i;
- unsigned int col;
+ for (p = 0; p < planes; p++) {
MALLOCARRAY(buf, newcols);
- if (buf == NULL)
+ if (buf == NULL)
pm_error("out of memory");
- for (i = 0, col = 0;
- col < imlen[plane + row * planes];
- col += 2)
- for (cmd = image[plane + row * planes][col],
- val = image[plane + row * planes][col+1];
- cmd >= 0 && i < newcols; cmd--, i++)
+ for (i = 0, c = 0; c < imlen[p + r * planes]; c += 2)
+ for (cmd = image[p + r * planes][c],
+ val = image[p + r * planes][c+1];
+ cmd >= 0 && i < newcols; cmd--, i++) {
buf[i] = val;
- cols = MAX(cols, i);
- free(image[plane + row * planes]);
- /*
- * This is less than what we have so it realloc should
+ overflow_add(i, 1);
+ }
+ cols = cols > i ? cols : i;
+ free(image[p + r * planes]);
+ /*
+ * This is less than what we have so it realloc should
* not return null. Even if it does, tough! We will
* lose a line, and probably die on the next line anyway
*/
- image[plane + row * planes] = realloc(buf, i);
+ image[p + r * planes] = (unsigned char *) realloc(buf, i);
}
}
+ overflow2(cols, 8);
cols *= 8;
}
-
+
+
ppm_writeppminit(stdout, cols, rows, (pixval) 255, 0);
pixrow = ppm_allocrow(cols);
-
- for (row = 0; row < rows; ++row) {
- if (image[row * planes] == NULL) {
- unsigned int col;
- for (col = 0; col < cols; ++col)
- PPM_ASSIGN(pixrow[col], 0, 0, 0);
+ for (r = 0; r < rows; r++) {
+ if (image[r * planes] == NULL) {
+ for (c = 0; c < cols; c++)
+ PPM_ASSIGN(pixrow[c], 0, 0, 0);
continue;
}
- {
- unsigned int col;
- unsigned int cmd;
- for (cmd = 0, col = 0; col < cols; col += 8, ++cmd) {
- unsigned int i;
- for (i = 0; i < 8 && col + i < cols; ++i) {
- unsigned int plane;
- for (plane = 0; plane < planes; ++plane)
- if (mode == 0 && cmd >= imlen[row * planes + plane])
- bf[plane] = 0;
- else
- bf[plane] = (image[row * planes + plane][cmd] &
- (1 << (7 - i))) ? 255 : 0;
- PPM_ASSIGN(pixrow[col + i], bf[0], bf[1], bf[2]);
- }
+ for (cmd = 0, c = 0; c < cols; c += 8, cmd++)
+ for (i = 0; i < 8 && c + i < cols; i++) {
+ for (p = 0; p < planes; p++)
+ if (mode == 0 && cmd >= imlen[r * planes + p])
+ bf[p] = 0;
+ else
+ bf[p] = (image[r * planes + p][cmd] &
+ (1 << (7 - i))) ? 255 : 0;
+ PPM_ASSIGN(pixrow[c + i], bf[0], bf[1], bf[2]);
}
- }
- ppm_writeppmrow(stdout, pixrow, cols, 255, 0);
+ ppm_writeppmrow(stdout, pixrow, cols, (pixval) 255, 0);
}
pm_close(stdout);
-
- return 0;
+ exit(0);
}
-
-
-
diff -ruNp a/converter/ppm/ppmtoeyuv.c b/converter/ppm/ppmtoeyuv.c
--- a/converter/ppm/ppmtoeyuv.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/ppmtoeyuv.c 2021-06-02 20:23:21.821634361 +0200
@@ -114,6 +114,7 @@ create_multiplication_tables(const pixva
int index;
+ overflow_add(maxval, 1);
MALLOCARRAY_NOFAIL(mult299 , maxval+1);
MALLOCARRAY_NOFAIL(mult587 , maxval+1);
MALLOCARRAY_NOFAIL(mult114 , maxval+1);
diff -ruNp a/converter/ppm/ppmtolj.c b/converter/ppm/ppmtolj.c
--- a/converter/ppm/ppmtolj.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ppmtolj.c 2021-06-02 20:23:21.821634361 +0200
@@ -182,6 +182,7 @@ int main(int argc, char *argv[]) {
ppm_readppminit( ifp, &cols, &rows, &maxval, &format );
pixelrow = ppm_allocrow( cols );
+ overflow2(cols, 6);
obuf = (unsigned char *) pm_allocrow(cols * 3, sizeof(unsigned char));
cbuf = (unsigned char *) pm_allocrow(cols * 6, sizeof(unsigned char));
if (mode == C_TRANS_MODE_DELTA)
diff -ruNp a/converter/ppm/ppmtomitsu.c b/converter/ppm/ppmtomitsu.c
--- a/converter/ppm/ppmtomitsu.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ppmtomitsu.c 2021-06-02 20:23:21.822634370 +0200
@@ -685,6 +685,8 @@ main(int argc, char * argv[]) {
medias = MSize_User;
if (dpi300) {
+ overflow2(medias.maxcols, 2);
+ overflow2(medias.maxrows, 2);
medias.maxcols *= 2;
medias.maxrows *= 2;
}
diff -ruNp a/converter/ppm/ppmtopcx.c b/converter/ppm/ppmtopcx.c
--- a/converter/ppm/ppmtopcx.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ppmtopcx.c 2021-06-02 20:23:21.823634378 +0200
@@ -31,13 +31,13 @@
#define PCX_MAXVAL (pixval)255
-struct CmdlineInfo {
+struct cmdlineInfo {
/* All the information the user supplied in the command line,
in a form easy for the program to use.
*/
- const char * inputFilespec; /* '-' if stdin */
+ const char *inputFilespec; /* '-' if stdin */
unsigned int truecolor; /* -24bit option */
- unsigned int use8Bit; /* -8bit option */
+ unsigned int use_8_bit; /* -8bit option */
unsigned int planes; /* zero means minimum */
unsigned int packed;
unsigned int verbose;
@@ -49,16 +49,16 @@ struct CmdlineInfo {
-struct PcxCmapEntry {
+struct pcxCmapEntry {
unsigned char r;
unsigned char g;
unsigned char b;
};
-static struct PcxCmapEntry
+static struct pcxCmapEntry
pcxCmapEntryFromPixel(pixel const colorPixel) {
- struct PcxCmapEntry retval;
+ struct pcxCmapEntry retval;
retval.r = PPM_GETR(colorPixel);
retval.g = PPM_GETG(colorPixel);
@@ -70,8 +70,8 @@ pcxCmapEntryFromPixel(pixel const colorP
static void
-parseCommandLine(int argc, const char ** argv,
- struct CmdlineInfo * const cmdlineP) {
+parseCommandLine(int argc, char ** argv,
+ struct cmdlineInfo * const cmdlineP) {
/*----------------------------------------------------------------------------
parse program command line described in Unix standard form by argc
and argv. Return the information in the options as *cmdlineP.
@@ -82,7 +82,7 @@ parseCommandLine(int argc, const char **
Note that the strings we return are stored in the storage that
was passed to us as the argv array. We also trash *argv.
-----------------------------------------------------------------------------*/
- optEntry * option_def;
+ optEntry *option_def;
/* Instructions to pm_optParseOptions3 on how to parse our options.
*/
optStruct3 opt;
@@ -97,7 +97,7 @@ parseCommandLine(int argc, const char **
OPTENT3(0, "24bit", OPT_FLAG, NULL,
&cmdlineP->truecolor, 0);
OPTENT3(0, "8bit", OPT_FLAG, NULL,
- &cmdlineP->use8Bit, 0);
+ &cmdlineP->use_8_bit, 0);
OPTENT3(0, "planes", OPT_UINT, &cmdlineP->planes,
&planesSpec, 0);
OPTENT3(0, "packed", OPT_FLAG, NULL,
@@ -115,7 +115,7 @@ parseCommandLine(int argc, const char **
opt.short_allowed = FALSE; /* We have no short (old-fashioned) options */
opt.allowNegNum = FALSE; /* We have no parms that are negative numbers */
- pm_optParseOptions3( &argc, (char **)argv, opt, sizeof(opt), 0 );
+ pm_optParseOptions3( &argc, argv, opt, sizeof(opt), 0 );
/* Uses and sets argc, argv, and some of *cmdline_p and others. */
if (!xposSpec)
@@ -141,7 +141,7 @@ parseCommandLine(int argc, const char **
pm_error("-planes is meaningless with -packed.");
if (cmdlineP->truecolor)
pm_error("-planes is meaningless with -24bit");
- if (cmdlineP->use8Bit)
+ if (cmdlineP->use_8_bit)
pm_error("-planes is meaningless with -8bit");
}
@@ -151,7 +151,7 @@ parseCommandLine(int argc, const char **
if (!paletteSpec)
cmdlineP->palette = NULL;
- if (cmdlineP->use8Bit && cmdlineP->truecolor)
+ if (cmdlineP->use_8_bit && cmdlineP->truecolor)
pm_error("You cannot specify both -8bit and -truecolor");
if (argc-1 < 1)
@@ -172,8 +172,8 @@ parseCommandLine(int argc, const char **
* Write out a two-byte little-endian word to the PCX file
*/
static void
-putword(unsigned int const w,
- FILE * const fp) {
+Putword(int const w,
+ FILE * const fp) {
int rc;
@@ -189,13 +189,12 @@ putword(unsigned int const w,
* Write out a byte to the PCX file
*/
static void
-putbyte(unsigned int const b,
- FILE * const ofP) {
+Putbyte(int const b,
+ FILE * const fp) {
int rc;
- rc = fputc(b & 0xff, ofP);
-
+ rc = fputc(b & 0xff, fp);
if (rc == EOF)
pm_error("Error writing byte to output file.");
}
@@ -204,9 +203,9 @@ putbyte(unsigned int const b,
static void
extractPlane(unsigned char * const rawrow,
- unsigned int const cols,
+ int const cols,
unsigned char * const buf,
- unsigned int const plane) {
+ int const plane) {
/*----------------------------------------------------------------------------
From the image row 'rawrow', which is an array of 'cols' palette indices
(as unsigned 8 bit integers), extract plane number 'plane' and return
@@ -224,7 +223,9 @@ extractPlane(unsigned char * const rawro
cp = buf; /* initial value */
- for (col = 0, cbit = 7, byteUnderConstruction = 0x00; col < cols; ++col) {
+ cbit = 7;
+ byteUnderConstruction = 0x00;
+ for (col = 0; col < cols; ++col) {
if (rawrow[col] & planeMask)
byteUnderConstruction |= (1 << cbit);
@@ -246,17 +247,14 @@ extractPlane(unsigned char * const rawro
static void
-packBits(unsigned char * const rawrow,
- unsigned int const width,
+PackBits(unsigned char * const rawrow,
+ int const width,
unsigned char * const buf,
- unsigned int const bits) {
+ int const bits) {
- unsigned int x;
- int i;
- int shift;
+ int x, i, shift;
- shift = -1;
- i = -1;
+ shift = i = -1;
for (x = 0; x < width; ++x) {
if (shift < 0) {
@@ -272,73 +270,71 @@ packBits(unsigned char * const rawrow,
static void
-writeHeader(FILE * const ofP,
- unsigned int const cols,
- unsigned int const rows,
- unsigned int const bitsPerPixel,
- unsigned int const planes,
- struct PcxCmapEntry const cmap16[],
- unsigned int const xPos,
- unsigned int const yPos) {
-
- unsigned int bytesPerLine;
-
- putbyte(PCX_MAGIC, ofP); /* .PCX magic number */
- putbyte(0x05, ofP); /* PC Paintbrush version */
- putbyte(0x01, ofP); /* .PCX run length encoding */
- putbyte(bitsPerPixel, ofP); /* bits per pixel */
-
- putword(xPos, ofP); /* x1 - image left */
- putword(yPos, ofP); /* y1 - image top */
- putword(xPos+cols-1, ofP); /* x2 - image right */
- putword(yPos+rows-1, ofP); /* y2 - image bottom */
+write_header(FILE * const fp,
+ int const cols,
+ int const rows,
+ int const BitsPerPixel,
+ int const Planes,
+ struct pcxCmapEntry const cmap16[],
+ unsigned int const xPos,
+ unsigned int const yPos) {
+
+ int i, BytesPerLine;
+
+ Putbyte(PCX_MAGIC, fp); /* .PCX magic number */
+ Putbyte(0x05, fp); /* PC Paintbrush version */
+ Putbyte(0x01, fp); /* .PCX run length encoding */
+ Putbyte(BitsPerPixel, fp); /* bits per pixel */
+
+ Putword(xPos, fp); /* x1 - image left */
+ Putword(yPos, fp); /* y1 - image top */
+ Putword(xPos+cols-1, fp); /* x2 - image right */
+ Putword(yPos+rows-1, fp); /* y2 - image bottom */
- putword(cols, ofP); /* horizontal resolution */
- putword(rows, ofP); /* vertical resolution */
+ Putword(cols, fp); /* horizontal resolution */
+ Putword(rows, fp); /* vertical resolution */
/* Write out the Color Map for images with 16 colors or less */
- if (cmap16) {
- unsigned int i;
+ if (cmap16)
for (i = 0; i < 16; ++i) {
- putbyte(cmap16[i].r, ofP);
- putbyte(cmap16[i].g, ofP);
- putbyte(cmap16[i].b, ofP);
+ Putbyte(cmap16[i].r, fp);
+ Putbyte(cmap16[i].g, fp);
+ Putbyte(cmap16[i].b, fp);
}
- } else {
+ else {
unsigned int i;
for (i = 0; i < 16; ++i) {
- putbyte(0, ofP);
- putbyte(0, ofP);
- putbyte(0, ofP);
+ Putbyte(0, fp);
+ Putbyte(0, fp);
+ Putbyte(0, fp);
}
}
- putbyte(0, ofP); /* reserved byte */
- putbyte(planes, ofP); /* number of color planes */
+ Putbyte(0, fp); /* reserved byte */
+ Putbyte(Planes, fp); /* number of color planes */
- bytesPerLine = ((cols * bitsPerPixel) + 7) / 8;
- putword(bytesPerLine, ofP); /* number of bytes per scanline */
+ BytesPerLine = ((cols * BitsPerPixel) + 7) / 8;
+ Putword(BytesPerLine, fp); /* number of bytes per scanline */
- putword(1, ofP); /* palette info */
+ Putword(1, fp); /* palette info */
{
unsigned int i;
for (i = 0; i < 58; ++i) /* fill to end of header */
- putbyte(0, ofP);
+ Putbyte(0, fp);
}
}
static void
-pcxEncode(FILE * const ofP,
+PCXEncode(FILE * const fp,
const unsigned char * const buf,
- unsigned int const size) {
+ int const Size) {
- const unsigned char * const end = buf + size;
+ const unsigned char * const end = buf + Size;
const unsigned char * currentP;
- unsigned int previous;
- unsigned int count;
+ int previous, count;
currentP = buf;
previous = *currentP++;
@@ -351,19 +347,19 @@ pcxEncode(FILE * const of
else {
if (count > 1 || (previous & 0xc0) == 0xc0) {
count |= 0xc0;
- putbyte ( count , ofP );
+ Putbyte ( count , fp );
}
- putbyte(previous, ofP);
+ Putbyte(previous, fp);
previous = c;
- count = 1;
+ count = 1;
}
}
if (count > 1 || (previous & 0xc0) == 0xc0) {
count |= 0xc0;
- putbyte(count, ofP);
+ Putbyte ( count , fp );
}
- putbyte(previous, ofP);
+ Putbyte(previous, fp);
}
@@ -390,46 +386,63 @@ indexOfColor(colorhash_table const cht,
static void
-writeRaster16Color(FILE * const ofP,
- pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
- unsigned int const planes,
- colorhash_table const cht,
- bool const packbits,
- unsigned int const bitsPerPixel) {
-
- unsigned int const bytesPerLine = ((cols * bitsPerPixel) + 7) / 8;
-
- unsigned char * indexRow; /* malloc'ed */
- /* indexRow[x] is the palette index of the pixel at column x of
- the row currently being processed
- */
- unsigned char * planesrow; /* malloc'ed */
- /* This is the input for a single row to the compressor */
+ppmTo16ColorPcx(pixel ** const pixels,
+ int const cols,
+ int const rows,
+ struct pcxCmapEntry const pcxcmap[],
+ int const colors,
+ colorhash_table const cht,
+ bool const packbits,
+ unsigned int const planesRequested,
+ unsigned int const xPos,
+ unsigned int const yPos) {
- unsigned int row;
+ int Planes, BytesPerLine, BitsPerPixel;
+ unsigned char *indexRow; /* malloc'ed */
+ /* indexRow[x] is the palette index of the pixel at column x of
+ the row currently being processed
+ */
+ unsigned char *planesrow; /* malloc'ed */
+ /* This is the input for a single row to the compressor */
+ int row;
+ if (packbits) {
+ Planes = 1;
+ if (colors > 4) BitsPerPixel = 4;
+ else if (colors > 2) BitsPerPixel = 2;
+ else BitsPerPixel = 1;
+ } else {
+ BitsPerPixel = 1;
+ if (planesRequested)
+ Planes = planesRequested;
+ else {
+ if (colors > 8) Planes = 4;
+ else if (colors > 4) Planes = 3;
+ else if (colors > 2) Planes = 2;
+ else Planes = 1;
+ }
+ }
+ overflow2(BitsPerPixel, cols);
+ overflow_add(BitsPerPixel * cols, 7);
+ BytesPerLine = ((cols * BitsPerPixel) + 7) / 8;
MALLOCARRAY_NOFAIL(indexRow, cols);
- MALLOCARRAY(planesrow, bytesPerLine);
-
- if (!planesrow)
- pm_error("Failed to allocate buffer for a line of %u bytes",
- bytesPerLine);
+ MALLOCARRAY_NOFAIL(planesrow, BytesPerLine);
+ write_header(stdout, cols, rows, BitsPerPixel, Planes, pcxcmap,
+ xPos, yPos);
for (row = 0; row < rows; ++row) {
- unsigned int col;
+ int col;
for (col = 0; col < cols; ++col)
indexRow[col] = indexOfColor(cht, pixels[row][col]);
if (packbits) {
- packBits(indexRow, cols, planesrow, bitsPerPixel);
- pcxEncode(ofP, planesrow, bytesPerLine);
+ PackBits(indexRow, cols, planesrow, BitsPerPixel);
+ PCXEncode(stdout, planesrow, BytesPerLine);
} else {
unsigned int plane;
- for (plane = 0; plane < planes; ++plane) {
+ for (plane = 0; plane < Planes; ++plane) {
extractPlane(indexRow, cols, planesrow, plane);
- pcxEncode(stdout, planesrow, bytesPerLine);
+ PCXEncode(stdout, planesrow, BytesPerLine);
}
}
}
@@ -440,142 +453,83 @@ writeRaster16Color(FILE * const ofP,
static void
-ppmTo16ColorPcx(pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
- struct PcxCmapEntry const pcxcmap[],
- unsigned int const colorCt,
- colorhash_table const cht,
- bool const packbits,
- unsigned int const planesRequested,
- unsigned int const xPos,
- unsigned int const yPos) {
-
- unsigned int planes;
- unsigned int bitsPerPixel;
-
- if (packbits) {
- planes = 1;
- if (colorCt > 4) bitsPerPixel = 4;
- else if (colorCt > 2) bitsPerPixel = 2;
- else bitsPerPixel = 1;
- } else {
- bitsPerPixel = 1;
- if (planesRequested)
- planes = planesRequested;
- else {
- if (colorCt > 8) planes = 4;
- else if (colorCt > 4) planes = 3;
- else if (colorCt > 2) planes = 2;
- else planes = 1;
- }
- }
-
- writeHeader(stdout, cols, rows, bitsPerPixel, planes, pcxcmap,
- xPos, yPos);
-
- writeRaster16Color(stdout, pixels, cols, rows, planes, cht, packbits,
- bitsPerPixel);
-}
-
-
-
-static void
ppmTo256ColorPcx(pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
- struct PcxCmapEntry const pcxcmap[],
- unsigned int const colorCt,
+ int const cols,
+ int const rows,
+ struct pcxCmapEntry const pcxcmap[],
+ int const colors,
colorhash_table const cht,
unsigned int const xPos,
unsigned int const yPos) {
- unsigned char * rawrow;
- unsigned int row;
-
- MALLOCARRAY(rawrow, cols);
+ int row;
+ unsigned int i;
+ unsigned char *rawrow;
- if (!rawrow)
- pm_error("Failed to allocate a buffer for %u columns", cols);
+ rawrow = (unsigned char *)pm_allocrow(cols, sizeof(unsigned char));
/* 8 bits per pixel, 1 plane */
- writeHeader(stdout, cols, rows, 8, 1, NULL, xPos, yPos);
+ write_header(stdout, cols, rows, 8, 1, NULL, xPos, yPos);
for (row = 0; row < rows; ++row) {
- unsigned int col;
+ int col;
for (col = 0; col < cols; ++col)
rawrow[col] = indexOfColor(cht, pixels[row][col]);
- pcxEncode(stdout, rawrow, cols);
-
+ PCXEncode(stdout, rawrow, cols);
}
- putbyte(PCX_256_COLORS, stdout);
-
- {
- unsigned int i;
-
- for (i = 0; i < MAXCOLORS; ++i) {
- putbyte(pcxcmap[i].r, stdout);
- putbyte(pcxcmap[i].g, stdout);
- putbyte(pcxcmap[i].b, stdout);
- }
+ Putbyte(PCX_256_COLORS, stdout);
+ for (i = 0; i < MAXCOLORS; ++i) {
+ Putbyte(pcxcmap[i].r, stdout);
+ Putbyte(pcxcmap[i].g, stdout);
+ Putbyte(pcxcmap[i].b, stdout);
}
- free(rawrow);
+ pm_freerow((void*)rawrow);
}
static void
ppmToTruecolorPcx(pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
+ int const cols,
+ int const rows,
pixval const maxval,
unsigned int const xPos,
unsigned int const yPos) {
- unsigned char * redrow;
- unsigned char * grnrow;
- unsigned char * blurow;
- unsigned int row;
-
- MALLOCARRAY(redrow, cols);
- MALLOCARRAY(grnrow, cols);
- MALLOCARRAY(blurow, cols);
+ unsigned char *redrow, *greenrow, *bluerow;
+ int col, row;
- if (!redrow || !grnrow || !blurow)
- pm_error("Unable to allocate buffer for a row of %u pixels", cols);
+ redrow = (unsigned char *)pm_allocrow(cols, sizeof(unsigned char));
+ greenrow = (unsigned char *)pm_allocrow(cols, sizeof(unsigned char));
+ bluerow = (unsigned char *)pm_allocrow(cols, sizeof(unsigned char));
/* 8 bits per pixel, 3 planes */
- writeHeader(stdout, cols, rows, 8, 3, NULL, xPos, yPos);
-
- for (row = 0; row < rows; ++row) {
- pixel * const pixrow = pixels[row];
-
- unsigned int col;
-
- for (col = 0; col < cols; ++col) {
- pixel const pix = pixrow[col];
-
- if (maxval != PCX_MAXVAL) {
- redrow[col] = (long)PPM_GETR(pix) * PCX_MAXVAL / maxval;
- grnrow[col] = (long)PPM_GETG(pix) * PCX_MAXVAL / maxval;
- blurow[col] = (long)PPM_GETB(pix) * PCX_MAXVAL / maxval;
- } else {
- redrow[col] = PPM_GETR(pix);
- grnrow[col] = PPM_GETG(pix);
- blurow[col] = PPM_GETB(pix);
+ write_header(stdout, cols, rows, 8, 3, NULL, xPos, yPos);
+ for( row = 0; row < rows; row++ ) {
+ register pixel *pP = pixels[row];
+ for( col = 0; col < cols; col++, pP++ ) {
+ if( maxval != PCX_MAXVAL ) {
+ redrow[col] = (long)PPM_GETR(*pP) * PCX_MAXVAL / maxval;
+ greenrow[col] = (long)PPM_GETG(*pP) * PCX_MAXVAL / maxval;
+ bluerow[col] = (long)PPM_GETB(*pP) * PCX_MAXVAL / maxval;
+ }
+ else {
+ redrow[col] = PPM_GETR(*pP);
+ greenrow[col] = PPM_GETG(*pP);
+ bluerow[col] = PPM_GETB(*pP);
}
}
- pcxEncode(stdout, redrow, cols);
- pcxEncode(stdout, grnrow, cols);
- pcxEncode(stdout, blurow, cols);
+ PCXEncode(stdout, redrow, cols);
+ PCXEncode(stdout, greenrow, cols);
+ PCXEncode(stdout, bluerow, cols);
}
- free(blurow);
- free(grnrow);
- free(redrow);
+ pm_freerow((void*)bluerow);
+ pm_freerow((void*)greenrow);
+ pm_freerow((void*)redrow);
}
-static const struct PcxCmapEntry
+static const struct pcxCmapEntry
stdPalette[] = {
{ 0, 0, 0 },
{ 0, 0, 170 },
@@ -653,19 +607,20 @@ putPcxColorInHash(colorhash_table const
static void
-generateStandardPalette(struct PcxCmapEntry ** const pcxcmapP,
+generateStandardPalette(struct pcxCmapEntry ** const pcxcmapP,
pixval const maxval,
colorhash_table * const chtP,
- unsigned int * const colorsP) {
+ int * const colorsP) {
unsigned int const stdPaletteSize = 16;
-
- unsigned int colorIndex;
- struct PcxCmapEntry * pcxcmap;
- colorhash_table cht;
+ unsigned int colorIndex;
+ struct pcxCmapEntry * pcxcmap;
+ colorhash_table cht;
MALLOCARRAY_NOFAIL(pcxcmap, MAXCOLORS);
+ *pcxcmapP = pcxcmap;
+
cht = ppm_alloccolorhash();
for (colorIndex = 0; colorIndex < stdPaletteSize; ++colorIndex) {
@@ -692,7 +647,6 @@ generateStandardPalette(struct PcxCmapEn
pcxcmap[colorIndex].b = 0;
}
- *pcxcmapP = pcxcmap;
*chtP = cht;
*colorsP = stdPaletteSize;
}
@@ -721,10 +675,11 @@ readPpmPalette(const char * const pale
*paletteSizeP, MAXCOLORS);
{
- unsigned int j;
- unsigned int row;
- for (row = 0, j = 0; row < rows; ++row) {
- unsigned int col;
+ int j;
+ int row;
+ j = 0; /* initial value */
+ for (row = 0; row < rows; ++row) {
+ int col;
for (col = 0; col < cols; ++col)
(*ppmPaletteP)[j++] = pixels[row][col];
}
@@ -735,16 +690,16 @@ readPpmPalette(const char * const pale
static void
-readPaletteFromFile(struct PcxCmapEntry ** const pcxcmapP,
+readPaletteFromFile(struct pcxCmapEntry ** const pcxcmapP,
const char * const paletteFileName,
pixval const maxval,
colorhash_table * const chtP,
- unsigned int * const colorsP) {
+ int * const colorsP) {
unsigned int colorIndex;
pixel ppmPalette[MAXCOLORS];
unsigned int paletteSize;
- struct PcxCmapEntry * pcxcmap;
+ struct pcxCmapEntry * pcxcmap;
colorhash_table cht;
readPpmPalette(paletteFileName, &ppmPalette, &paletteSize);
@@ -777,7 +732,7 @@ readPaletteFromFile(struct PcxCmapEntry
static void
moveBlackToIndex0(colorhist_vector const chv,
- unsigned int const colorCt) {
+ int const colors) {
/*----------------------------------------------------------------------------
If black is in the palette, make it at Index 0.
-----------------------------------------------------------------------------*/
@@ -789,7 +744,7 @@ moveBlackToIndex0(colorhist_vector const
blackPresent = FALSE; /* initial assumption */
- for (i = 0; i < colorCt; ++i)
+ for (i = 0; i < colors; ++i)
if (PPM_EQUAL(chv[i].color, blackPixel))
blackPresent = TRUE;
@@ -798,11 +753,10 @@ moveBlackToIndex0(colorhist_vector const
beginning of the table and if the color is already elsewhere in
the table, removes it.
*/
- int colorCt2;
-
- colorCt2 = colorCt;
- ppm_addtocolorhist(chv, &colorCt2, MAXCOLORS, &blackPixel, 0, 0);
- assert(colorCt2 == colorCt);
+ int colors2;
+ colors2 = colors;
+ ppm_addtocolorhist(chv, &colors2, MAXCOLORS, &blackPixel, 0, 0);
+ assert(colors2 == colors);
}
}
@@ -810,12 +764,12 @@ moveBlackToIndex0(colorhist_vector const
static void
makePcxColormapFromImage(pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
+ int const cols,
+ int const rows,
pixval const maxval,
- struct PcxCmapEntry ** const pcxcmapP,
+ struct pcxCmapEntry ** const pcxcmapP,
colorhash_table * const chtP,
- unsigned int * const colorCtP,
+ int * const colorsP,
bool * const tooManyColorsP) {
/*----------------------------------------------------------------------------
Make a colormap (palette) for the PCX header that can be used
@@ -831,29 +785,29 @@ makePcxColormapFromImage(pixel **
Iff there are too many colors to do that (i.e. more than 256),
return *tooManyColorsP == TRUE.
-----------------------------------------------------------------------------*/
- int colorCt;
+ int colors;
colorhist_vector chv;
pm_message("computing colormap...");
- chv = ppm_computecolorhist(pixels, cols, rows, MAXCOLORS, &colorCt);
+ chv = ppm_computecolorhist(pixels, cols, rows, MAXCOLORS, &colors);
if (chv == NULL)
*tooManyColorsP = TRUE;
else {
- unsigned int i;
- struct PcxCmapEntry * pcxcmap;
+ int i;
+ struct pcxCmapEntry * pcxcmap;
*tooManyColorsP = FALSE;
- pm_message("%d colors found", colorCt);
+ pm_message("%d colors found", colors);
- moveBlackToIndex0(chv, colorCt);
+ moveBlackToIndex0(chv, colors);
MALLOCARRAY_NOFAIL(pcxcmap, MAXCOLORS);
*pcxcmapP = pcxcmap;
- for (i = 0; i < colorCt; ++i) {
+ for (i = 0; i < colors; ++i) {
pixel p;
PPM_DEPTH(p, chv[i].color, maxval, PCX_MAXVAL);
@@ -870,9 +824,9 @@ makePcxColormapFromImage(pixel **
pcxcmap[i].b = 0;
}
- *chtP = ppm_colorhisttocolorhash(chv, colorCt);
+ *chtP = ppm_colorhisttocolorhash(chv, colors);
- *colorCtP = colorCt;
+ *colorsP = colors;
ppm_freecolorhist(chv);
}
@@ -882,43 +836,43 @@ makePcxColormapFromImage(pixel **
static void
ppmToPalettePcx(pixel ** const pixels,
- unsigned int const cols,
- unsigned int const rows,
+ int const cols,
+ int const rows,
pixval const maxval,
unsigned int const xPos,
unsigned int const yPos,
- struct PcxCmapEntry const pcxcmap[],
+ struct pcxCmapEntry const pcxcmap[],
colorhash_table const cht,
- unsigned int const colorCt,
+ int const colors,
bool const packbits,
unsigned int const planes,
- bool const use8Bit) {
+ bool const use_8_bit) {
/* convert image */
- if (colorCt <= 16 && !use8Bit )
- ppmTo16ColorPcx(pixels, cols, rows, pcxcmap, colorCt, cht,
+ if( colors <= 16 && !use_8_bit )
+ ppmTo16ColorPcx(pixels, cols, rows, pcxcmap, colors, cht,
packbits, planes, xPos, yPos);
else
- ppmTo256ColorPcx(pixels, cols, rows, pcxcmap, colorCt, cht,
+ ppmTo256ColorPcx(pixels, cols, rows, pcxcmap, colors, cht,
xPos, yPos);
}
int
-main(int argc, const char *argv[]) {
+main(int argc, char *argv[]) {
- struct CmdlineInfo cmdline;
- FILE * ifP;
+ struct cmdlineInfo cmdline;
+ FILE* ifP;
int rows, cols;
pixval maxval;
pixel **pixels;
- struct PcxCmapEntry * pcxcmap;
+ struct pcxCmapEntry * pcxcmap;
colorhash_table cht;
bool truecolor;
- unsigned int colorCt;
+ int colors;
- pm_proginit(&argc, argv);
+ ppm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
@@ -931,15 +885,15 @@ main(int argc, const char *argv[]) {
else {
if (cmdline.stdpalette) {
truecolor = FALSE;
- generateStandardPalette(&pcxcmap, maxval, &cht, &colorCt);
+ generateStandardPalette(&pcxcmap, maxval, &cht, &colors);
} else if (cmdline.palette) {
truecolor = FALSE;
readPaletteFromFile(&pcxcmap, cmdline.palette, maxval,
- &cht, &colorCt);
+ &cht, &colors);
} else {
bool tooManyColors;
makePcxColormapFromImage(pixels, cols, rows, maxval,
- &pcxcmap, &cht, &colorCt,
+ &pcxcmap, &cht, &colors,
&tooManyColors);
if (tooManyColors) {
@@ -958,8 +912,8 @@ main(int argc, const char *argv[]) {
else {
ppmToPalettePcx(pixels, cols, rows, maxval,
cmdline.xpos, cmdline.ypos,
- pcxcmap, cht, colorCt, cmdline.packed,
- cmdline.planes, cmdline.use8Bit);
+ pcxcmap, cht, colors, cmdline.packed,
+ cmdline.planes, cmdline.use_8_bit);
ppm_freecolorhash(cht);
free(pcxcmap);
diff -ruNp a/converter/ppm/ppmtopict.c b/converter/ppm/ppmtopict.c
--- a/converter/ppm/ppmtopict.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ppmtopict.c 2021-06-02 20:23:21.824634387 +0200
@@ -450,6 +450,8 @@ main(int argc, const char ** argv) {
putShort(stdout, 0); /* mode */
/* Finally, write out the data. */
+ overflow_add(cols/MAX_COUNT, 1);
+ overflow_add(cols, cols/MAX_COUNT+1);
outBuf = malloc((unsigned)(cols+cols/MAX_COUNT+1));
for (row = 0, oc = 0; row < rows; ++row) {
unsigned int rowSize;
diff -ruNp a/converter/ppm/ppmtopj.c b/converter/ppm/ppmtopj.c
--- a/converter/ppm/ppmtopj.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/ppmtopj.c 2021-06-02 20:23:21.824634387 +0200
@@ -179,6 +179,7 @@ char *argv[];
pixels = ppm_readppm( ifp, &cols, &rows, &maxval );
pm_close( ifp );
+ overflow2(cols,2);
obuf = (unsigned char *) pm_allocrow(cols, sizeof(unsigned char));
cbuf = (unsigned char *) pm_allocrow(cols * 2, sizeof(unsigned char));
diff -ruNp a/converter/ppm/ppmtopjxl.c b/converter/ppm/ppmtopjxl.c
--- a/converter/ppm/ppmtopjxl.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/ppmtopjxl.c 2021-06-02 20:23:21.825634396 +0200
@@ -267,6 +267,9 @@ main(int argc, const char * argv[]) {
if (maxval > PCL_MAXVAL)
pm_error("color range too large; reduce with ppmcscale");
+ if (cols < 0 || rows < 0)
+ pm_error("negative size is not possible");
+
/* Figure out the colormap. */
pm_message("Computing colormap...");
chv = ppm_computecolorhist(pixels, cols, rows, MAXCOLORS, &colors);
@@ -286,6 +289,8 @@ main(int argc, const char * argv[]) {
case 0: /* direct mode (no palette) */
bpp = bitsperpixel(maxval); /* bits per pixel */
bpg = bpp; bpb = bpp;
+ overflow2(bpp, 3);
+ overflow_add(bpp*3, 7);
bpp = (bpp*3+7)>>3; /* bytes per pixel now */
bpr = (bpp<<3)-bpg-bpb;
bpp *= cols; /* bytes per row now */
@@ -295,9 +300,13 @@ main(int argc, const char * argv[]) {
case 3: case 7: pclindex++;
default:
bpp = 8/pclindex;
+ overflow_add(cols, bpp);
+ if(bpp == 0)
+ pm_error("assert: no bpp");
bpp = (cols+bpp-1)/bpp; /* bytes per row */
}
}
+ overflow2(bpp,2);
inrow = (char *)malloc((unsigned)bpp);
outrow = (char *)malloc((unsigned)bpp*2);
runcnt = (signed char *)malloc((unsigned)bpp);
diff -ruNp a/converter/ppm/ppmtowinicon.c b/converter/ppm/ppmtowinicon.c
--- a/converter/ppm/ppmtowinicon.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/ppmtowinicon.c 2021-06-02 20:23:21.825634396 +0200
@@ -12,6 +12,7 @@
#include <math.h>
#include <string.h>
+#include <stdlib.h>
#include "pm_c_util.h"
#include "winico.h"
@@ -214,6 +215,7 @@ createAndBitmap (gray ** const ba, int c
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
u1 * row;
@@ -342,6 +344,7 @@ create4Bitmap (pixel ** const pa, int co
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
@@ -402,6 +405,7 @@ create8Bitmap (pixel ** const pa, int co
MALLOCARRAY_NOFAIL(rowData, rows);
icBitmap->xBytes = xBytes;
icBitmap->data = rowData;
+ overflow2(xBytes, rows);
icBitmap->size = xBytes * rows;
for (y=0;y<rows;y++) {
@@ -709,7 +713,11 @@ addEntryToIcon(MS_Ico const MSIcon
entry->bitcount = bpp;
entry->ih = createInfoHeader(entry, xorBitmap, andBitmap);
entry->colors = palette->colors;
- entry->size_in_bytes =
+ overflow2(4, entry->color_count);
+ overflow_add(xorBitmap->size, andBitmap->size);
+ overflow_add(xorBitmap->size + andBitmap->size, 40);
+ overflow_add(xorBitmap->size + andBitmap->size + 40, 4 * entry->color_count);
+ entry->size_in_bytes =
xorBitmap->size + andBitmap->size + 40 + (4 * entry->color_count);
if (verbose)
pm_message("entry->size_in_bytes = %d + %d + %d = %d",
diff -ruNp a/converter/ppm/ppmtoxpm.c b/converter/ppm/ppmtoxpm.c
--- a/converter/ppm/ppmtoxpm.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ppmtoxpm.c 2021-06-02 20:23:21.826634405 +0200
@@ -198,6 +198,7 @@ genNumstr(unsigned int const input, int
unsigned int i;
/* Allocate memory for printed number. Abort if error. */
+ overflow_add(digits, 1);
if (!(str = (char *) malloc(digits + 1)))
pm_error("out of memory");
@@ -315,6 +316,7 @@ genCmap(colorhist_vector const chv,
unsigned int charsPerPixel;
unsigned int xpmMaxval;
+ if (includeTransparent) overflow_add(ncolors, 1);
MALLOCARRAY(cmap, cmapSize);
if (cmapP == NULL)
pm_error("Out of memory allocating %u bytes for a color map.",
diff -ruNp a/converter/ppm/qrttoppm.c b/converter/ppm/qrttoppm.c
--- a/converter/ppm/qrttoppm.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/qrttoppm.c 2021-06-02 20:23:21.826634405 +0200
@@ -46,7 +46,7 @@ main( argc, argv )
ppm_writeppminit( stdout, cols, rows, maxval, 0 );
pixelrow = ppm_allocrow( cols );
- buf = (unsigned char *) malloc( 3 * cols );
+ buf = (unsigned char *) malloc2( 3 , cols );
if ( buf == (unsigned char *) 0 )
pm_error( "out of memory" );
diff -ruNp a/converter/ppm/sldtoppm.c b/converter/ppm/sldtoppm.c
--- a/converter/ppm/sldtoppm.c 2021-06-02 15:53:59.845205755 +0200
+++ b/converter/ppm/sldtoppm.c 2021-06-02 20:23:21.827634413 +0200
@@ -154,127 +154,85 @@ vscale(int * const px,
-static void
-upcase(const char * const sname,
- char * const uname) {
-
- unsigned int i;
- const char * ip;
-
- for (i = 0, ip = sname; i < 31; ++i) {
- char const ch = *ip++;
-
- if (ch != EOS)
- uname[i] = islower(ch) ? toupper(ch) : ch;
- }
- uname[i] = EOS;
-}
-
-
-
-static void
-skipBytes(FILE * const fileP,
- unsigned int const count) {
-
- unsigned int i;
-
- for (i = 0; i < count; ++i)
- getc(fileP);
-}
-
-
-
-static void
-scanDirectory(FILE * const slFileP,
- long const dirPos,
- bool const dirOnly,
- const char * const uname,
- bool * const foundP) {
-/*----------------------------------------------------------------------------
- Scan the directory at the current position in *slFileP, either listing
- the directory ('dirOnly' true) or searching for a slide named
- 'uname' ('dirOnly' false).
-
- 'dirPos' is the offset in the file of the directory, i.e. the current
- position of *slFileP.
-
- In the latter case, return as *foundP whether the slide name is there.
------------------------------------------------------------------------------*/
- bool found;
- bool eof;
- long pos;
- unsigned char libent[36];
-
- for (found = false, eof = false, pos = dirPos; !found && !eof; ) {
- size_t readCt;
- readCt = fread(libent, 36, 1, slFileP);
- if (readCt != 1)
- eof = true;
- else {
- /* The directory entry is 32 bytes of NUL-terminated slide name
- followed by 4 bytes of offset of the next directory entry.
- */
- const char * const slideName = (const char *)(&libent[0]);
- if (pm_strnlen(slideName, 32) == 32)
- pm_error("Invalid input: slide name field is not "
- "nul-terminated");
- else {
- if (strlen(slideName) == 0)
- eof = true;
- else {
- pos += 36;
- if (dirOnly) {
- pm_message(" %s", slideName);
- } else if (streq(slideName, uname)) {
- long const dpos =
- (((((libent[35] << 8) | libent[34]) << 8) |
- libent[33]) << 8) | libent[32];
-
- if ((slFileP == stdin) ||
- (fseek(slFileP, dpos, 0) == -1)) {
-
- skipBytes(slFileP, dpos - pos);
- }
- found = true;
- }
- }
- }
- }
- }
- *foundP = found;
-}
-
/* SLIDEFIND -- Find a slide in a library or, if DIRONLY is
nonzero, print a directory listing of the library.
If UCASEN is nonzero, the requested slide name is
converted to upper case. */
static void
-slidefind(const char * const slideName,
- bool const dirOnly,
+slidefind(const char * const sname,
+ bool const dironly,
bool const ucasen) {
- char uname[32]; /* upper case translation of 'slideName' */
- char header[32]; /* (supposed) header read from file */
+ char uname[32];
+ unsigned char libent[36];
+ long pos;
bool found;
+ bool eof;
- if (dirOnly)
+ if (dironly)
pm_message("Slides in library:");
else {
- upcase(slideName, uname);
+ unsigned int i;
+ const char * ip;
+
+ ip = sname; /* initial value */
+
+ for (i = 0; i < 31; ++i) {
+ char const ch = *ip++;
+ if (ch == EOS)
+ break;
+
+ {
+ char const upperCh =
+ ucasen && islower(ch) ? toupper(ch) : ch;
+
+ uname[i] = upperCh;
+ }
+ }
+ uname[i] = EOS;
}
/* Read slide library header and verify. */
-
- if ((fread(header, 32, 1, slfile) != 1) ||
- (!STRSEQ(header, "AutoCAD Slide Library 1.0\r\n\32"))) {
+
+ if ((fread(libent, 32, 1, slfile) != 1) ||
+ (!streq((char *)libent, "AutoCAD Slide Library 1.0\015\012\32"))) {
pm_error("not an AutoCAD slide library file.");
}
+ pos = 32;
+
+ /* Search for a slide with the requested name or list the directory */
+
+ for (found = false, eof = false; !found && !eof; ) {
+ size_t readCt;
+ readCt = fread(libent, 36, 1, slfile);
+ if (readCt != 1)
+ eof = true;
+ else if (strlen((char *)libent) == 0)
+ eof = true;
+ }
+ if (!eof) {
+ pos += 36;
+ if (dironly) {
+ pm_message(" %s", libent);
+ } else if (streq((char *)libent, uname)) {
+ long dpos;
+
+ dpos = (((((libent[35] << 8) | libent[34]) << 8) |
+ libent[33]) << 8) | libent[32];
+
+ if ((slfile == stdin) || (fseek(slfile, dpos, 0) == -1)) {
+ dpos -= pos;
+
+ while (dpos-- > 0)
+ getc(slfile);
+ }
+ found = true;
+ }
+ }
- scanDirectory(slfile, 32, dirOnly, ucasen ? uname : slideName, &found);
-
- if (!found && !dirOnly)
- pm_error("slide '%s' not in library.", slideName);
+ if (!found && !dironly)
+ pm_error("slide '%s' not in library.", sname);
}
@@ -392,7 +350,7 @@ slider(slvecfn slvec,
/* Verify that slide format is compatible with this program. */
- if (!STRSEQ(slfrof.slh, slhi.slh))
+ if (streq(slfrof.slh, slhi.slh))
pm_error("this is not an AutoCAD slide file.");
/* Verify that the number format and file level in the header are
@@ -506,6 +464,8 @@ slider(slvecfn slvec,
/* Allocate image buffer and clear it to black. */
+ overflow_add(ixdots, 1);
+ overflow_add(iydots, 1);
pixels = ppm_allocarray(pixcols = ixdots + 1, pixrows = iydots + 1);
PPM_ASSIGN(rgbcolor, 0, 0, 0);
ppmd_filledrectangle(pixels, pixcols, pixrows, pixmaxval, 0, 0,
diff -ruNp a/converter/ppm/ximtoppm.c b/converter/ppm/ximtoppm.c
--- a/converter/ppm/ximtoppm.c 2021-06-02 15:53:59.846205765 +0200
+++ b/converter/ppm/ximtoppm.c 2021-06-02 20:23:21.828634422 +0200
@@ -22,9 +22,7 @@
#include "shhopt.h"
#include "nstring.h"
-
-
-struct CmdlineInfo {
+struct cmdlineInfo {
/* All the information the user supplied in the command line,
in a form easy for the program to use.
*/
@@ -36,8 +34,8 @@ struct CmdlineInfo {
static void
-parseCommandLine(int argc, const char ** argv,
- struct CmdlineInfo *cmdlineP) {
+parseCommandLine(int argc, char ** argv,
+ struct cmdlineInfo *cmdlineP) {
/*----------------------------------------------------------------------------
Note that many of the strings that this function returns in the
*cmdlineP structure are actually in the supplied argv array. And
@@ -59,7 +57,7 @@ parseCommandLine(int argc, const char **
opt.short_allowed = FALSE; /* We have no short (old-fashioned) options */
opt.allowNegNum = FALSE; /* We have no parms that are negative numbers */
- pm_optParseOptions3(&argc, (char**)argv, opt, sizeof(opt), 0);
+ pm_optParseOptions3(&argc, argv, opt, sizeof(opt), 0);
/* Uses and sets argc, argv, and all of *cmdlineP. */
if (!alphaoutSpec)
@@ -102,11 +100,6 @@ ReadXimHeader(FILE * const in_fp,
pm_message("ReadXimHeader: unable to read file header" );
return(0);
}
- /* Force broken ASCIIZ strings to at least be valid ASCIIZ */
- a_head.author [sizeof(a_head.author) - 1] = '\0';
- a_head.date [sizeof(a_head.date) - 1] = '\0';
- a_head.program[sizeof(a_head.program) - 1] = '\0';
-
if (atoi(a_head.header_size) != sizeof(ImageHeader)) {
pm_message("ReadXimHeader: header size mismatch" );
return(0);
@@ -120,15 +113,39 @@ ReadXimHeader(FILE * const in_fp,
header->ncolors = atoi(a_head.num_colors);
header->nchannels = atoi(a_head.num_channels);
header->bytes_per_line = atoi(a_head.bytes_per_line);
-#if 0
- header->npics = atoi(a_head.num_pictures);
-#endif
+/* header->npics = atoi(a_head.num_pictures);
+*/
header->bits_channel = atoi(a_head.bits_per_channel);
header->alpha_flag = atoi(a_head.alpha_channel);
- header->author = pm_strdup(a_head.author);
- header->date = pm_strdup(a_head.date);
- header->program = pm_strdup(a_head.program);
-
+ if (strlen(a_head.author)) {
+ overflow_add(strlen(a_head.author),1);
+ if (!(header->author = calloc((unsigned int)strlen(a_head.author)+1,
+ 1))) {
+ pm_message("ReadXimHeader: can't calloc author string" );
+ return(0);
+ }
+ header->width = atoi(a_head.image_width);
+ strncpy(header->author, a_head.author, strlen(a_head.author));
+ }
+ if (strlen(a_head.date)) {
+ overflow_add(strlen(a_head.date),1);
+ if (!(header->date =calloc((unsigned int)strlen(a_head.date)+1,1))){
+ pm_message("ReadXimHeader: can't calloc date string" );
+ return(0);
+ }
+ header->width = atoi(a_head.image_width);
+ strncpy(header->date, a_head.date, strlen(a_head.date));
+ }
+ if (strlen(a_head.program)) {
+ overflow_add(strlen(a_head.program),1);
+ if (!(header->program = calloc(
+ (unsigned int)strlen(a_head.program) + 1, 1))) {
+ pm_message("ReadXimHeader: can't calloc program string" );
+ return(0);
+ }
+ header->width = atoi(a_head.image_width);
+ strncpy(header->program, a_head.program,strlen(a_head.program));
+ }
/* Do double checking for backwards compatibility */
if (header->npics == 0)
header->npics = 1;
@@ -147,6 +164,7 @@ ReadXimHeader(FILE * const in_fp,
if (header->nchannels == 3 && header->bits_channel == 8)
header->ncolors = 0;
else if (header->nchannels == 1 && header->bits_channel == 8) {
+ overflow2(header->ncolors, sizeof(Color));
header->colors = (Color *)calloc((unsigned int)header->ncolors,
sizeof(Color));
if (header->colors == NULL) {
@@ -197,8 +215,7 @@ ReadImageChannel(FILE * const in
}
/* return to the beginning of the next image's buffer */
if (fseek(infp, marker, 0) == -1) {
- pm_message("ReadImageChannel: can't fseek to location "
- "in image buffer");
+ pm_message("ReadImageChannel: can't fseek to location in image buffer" );
return(0);
}
free((char *)line);
@@ -307,26 +324,28 @@ ReadXimImage(FILE * const in_fp,
***********************************************************************/
static int
-ReadXim(FILE * const in_fp,
- XimImage * const xim) {
-
+ReadXim(in_fp, xim)
+ FILE *in_fp;
+ XimImage *xim;
+{
if (!ReadXimHeader(in_fp, xim)) {
pm_message("can't read xim header" );
- return 0;
- } else if (!ReadXimImage(in_fp, xim)) {
+ return(0);
+ }
+ if (!ReadXimImage(in_fp, xim)) {
pm_message("can't read xim data" );
- return 0;
- } else
- return 1;
+ return(0);
+ }
+ return(1);
}
int
-main(int argc,
- const char **argv) {
+main(int argc,
+ char *argv[]) {
- struct CmdlineInfo cmdline;
+ struct cmdlineInfo cmdline;
FILE *ifP, *imageout_file, *alpha_file;
XimImage xim;
pixel *pixelrow, colormap[256];
@@ -338,7 +357,7 @@ main(int argc,
pixval maxval;
bool success;
- pm_proginit(&argc, argv);
+ ppm_init(&argc, argv);
parseCommandLine(argc, argv, &cmdline);
diff -ruNp a/editor/pamcut.c b/editor/pamcut.c
--- a/editor/pamcut.c 2021-06-02 15:53:59.809205409 +0200
+++ b/editor/pamcut.c 2021-06-02 20:23:21.828634422 +0200
@@ -799,6 +799,8 @@ cutOneImage(FILE * const ifP
outpam = inpam; /* Initial value -- most fields should be same */
outpam.file = ofP;
+ overflow_add(rightcol, 1);
+ overflow_add(bottomrow, 1);
outpam.width = rightcol - leftcol + 1;
outpam.height = bottomrow - toprow + 1;
diff -ruNp a/editor/pnmgamma.c b/editor/pnmgamma.c
--- a/editor/pnmgamma.c 2021-06-02 15:53:59.805205371 +0200
+++ b/editor/pnmgamma.c 2021-06-02 20:23:21.829634431 +0200
@@ -596,6 +596,7 @@ createGammaTables(enum transferFunction
xelval ** const btableP) {
/* Allocate space for the tables. */
+ overflow_add(maxval, 1);
MALLOCARRAY(*rtableP, maxval+1);
MALLOCARRAY(*gtableP, maxval+1);
MALLOCARRAY(*btableP, maxval+1);
diff -ruNp a/editor/pnmhisteq.c b/editor/pnmhisteq.c
--- a/editor/pnmhisteq.c 2021-06-02 15:53:59.800205323 +0200
+++ b/editor/pnmhisteq.c 2021-06-02 20:23:21.829634431 +0200
@@ -107,6 +107,7 @@ computeLuminosityHistogram(xel * const *
unsigned int pixelCount;
unsigned int * lumahist;
+ overflow_add(maxval, 1);
MALLOCARRAY(lumahist, maxval + 1);
if (lumahist == NULL)
pm_error("Out of storage allocating array for %u histogram elements",
diff -ruNp a/editor/pnmindex.csh b/editor/pnmindex.csh
--- a/editor/pnmindex.csh 2021-06-02 15:53:59.801205332 +0200
+++ b/editor/pnmindex.csh 2021-06-02 20:23:21.829634431 +0200
@@ -1,5 +1,7 @@
#!/bin/csh -f
#
+echo "Unsafe code, needs debugging, do not ship"
+exit 1
# pnmindex - build a visual index of a bunch of anymaps
#
# Copyright (C) 1991 by Jef Poskanzer.
diff -ruNp a/editor/pnmpad.c b/editor/pnmpad.c
--- a/editor/pnmpad.c 2021-06-02 15:53:59.808205400 +0200
+++ b/editor/pnmpad.c 2021-06-02 20:23:21.829634431 +0200
@@ -654,6 +654,8 @@ main(int argc, const char ** argv) {
computePadSizes(cmdline, cols, rows, &lpad, &rpad, &tpad, &bpad);
+ overflow_add(cols, lpad);
+ overflow_add(cols + lpad, rpad);
newcols = cols + lpad + rpad;
if (cmdline.reportonly)
diff -ruNp a/editor/pnmremap.c b/editor/pnmremap.c
--- a/editor/pnmremap.c 2021-06-02 15:53:59.809205409 +0200
+++ b/editor/pnmremap.c 2021-06-02 20:23:21.830634440 +0200
@@ -470,6 +470,7 @@ fserr_init(struct pam * const pamP,
unsigned int const fserrSize = pamP->width + 2;
+ overflow_add(pamP->width, 2);
fserrP->width = pamP->width;
MALLOCARRAY(fserrP->thiserr, pamP->depth);
@@ -508,6 +509,7 @@ floydInitRow(struct pam * const pamP,
unsigned int col;
+ overflow_add(pamP->width, 2);
for (col = 0; col < pamP->width + 2; ++col) {
unsigned int plane;
for (plane = 0; plane < pamP->depth; ++plane)
diff -ruNp a/editor/pnmscalefixed.c b/editor/pnmscalefixed.c
--- a/editor/pnmscalefixed.c 2021-06-02 15:53:59.800205323 +0200
+++ b/editor/pnmscalefixed.c 2021-06-02 20:23:21.830634440 +0200
@@ -214,6 +214,7 @@ compute_output_dimensions(const struct c
const int rows, const int cols,
int * newrowsP, int * newcolsP) {
+ overflow2(rows, cols);
if (cmdline.pixels) {
if (rows * cols <= cmdline.pixels) {
*newrowsP = rows;
@@ -265,6 +266,8 @@ compute_output_dimensions(const struct c
if (*newcolsP < 1) *newcolsP = 1;
if (*newrowsP < 1) *newrowsP = 1;
+
+ overflow2(*newcolsP, *newrowsP);
}
@@ -446,6 +449,9 @@ main(int argc, char **argv ) {
unfilled. We can address that by stretching, whereas the other
case would require throwing away some of the input.
*/
+
+ overflow2(newcols, SCALE);
+ overflow2(newrows, SCALE);
sxscale = SCALE * newcols / cols;
syscale = SCALE * newrows / rows;
diff -ruNp a/editor/ppmdither.c b/editor/ppmdither.c
--- a/editor/ppmdither.c 2021-06-02 15:53:59.803205352 +0200
+++ b/editor/ppmdither.c 2021-06-02 20:23:21.831634448 +0200
@@ -356,6 +356,11 @@ dithMatrix(unsigned int const dithPower)
(dithDim * sizeof(*dithMat)) + /* pointers */
(dithDim * dithDim * sizeof(**dithMat)); /* data */
+
+ overflow2(dithDim, sizeof(*dithMat));
+ overflow3(dithDim, dithDim, sizeof(**dithMat));
+ overflow_add(dithDim * sizeof(*dithMat), dithDim * dithDim * sizeof(**dithMat));
+
dithMat = malloc(dithMatSize);
if (dithMat == NULL)
diff -ruNp a/editor/specialty/pamoil.c b/editor/specialty/pamoil.c
--- a/editor/specialty/pamoil.c 2021-06-02 15:53:59.817205486 +0200
+++ b/editor/specialty/pamoil.c 2021-06-02 20:23:21.831634448 +0200
@@ -112,6 +112,7 @@ main(int argc, char *argv[] ) {
tuples = pnm_readpam(ifp, &inpam, PAM_STRUCT_SIZE(tuple_type));
pm_close(ifp);
+ overflow_add(inpam.maxval, 1);
MALLOCARRAY(hist, inpam.maxval + 1);
if (hist == NULL)
pm_error("Unable to allocate memory for histogram.");
diff -ruNp a/lib/libpam.c b/lib/libpam.c
--- a/lib/libpam.c 2021-06-02 15:53:59.867205967 +0200
+++ b/lib/libpam.c 2021-06-02 20:23:21.832634457 +0200
@@ -225,7 +225,8 @@ allocPamRow(const struct pam * const pam
unsigned int const bytesPerTuple = allocationDepth(pamP) * sizeof(sample);
tuple * tuplerow;
- tuplerow = malloc(pamP->width * (sizeof(tuple *) + bytesPerTuple));
+ overflow_add(sizeof(tuple *), bytesPerTuple);
+ tuplerow = malloc2(pamP->width, (sizeof(tuple *) + bytesPerTuple));
if (tuplerow != NULL) {
/* Now we initialize the pointers to the individual tuples
diff -ruNp a/lib/libpammap.c b/lib/libpammap.c
--- a/lib/libpammap.c 2021-06-02 15:53:59.867205967 +0200
+++ b/lib/libpammap.c 2021-06-02 20:23:00.658449503 +0200
@@ -108,6 +108,8 @@ allocTupleIntListItem(struct pam * const
*/
struct tupleint_list_item * retval;
+ overflow2(pamP->depth, sizeof(sample));
+ overflow_add(sizeof(*retval)-sizeof(retval->tupleint.tuple), pamP->depth*sizeof(sample));
unsigned int const size =
sizeof(*retval) - sizeof(retval->tupleint.tuple)
+ pamP->depth * sizeof(sample);
diff -ruNp a/lib/libpm.c b/lib/libpm.c
--- a/lib/libpm.c 2021-06-02 15:53:59.867205967 +0200
+++ b/lib/libpm.c 2021-06-02 20:23:21.832634457 +0200
@@ -888,5 +888,53 @@ pm_parse_height(const char * const arg)
return height;
}
+/*
+ * Maths wrapping
+ */
+void __overflow2(int a, int b)
+{
+ if(a < 0 || b < 0)
+ pm_error("object too large");
+ if(b == 0)
+ return;
+ if(a > INT_MAX / b)
+ pm_error("object too large");
+}
+
+void overflow3(int a, int b, int c)
+{
+ overflow2(a,b);
+ overflow2(a*b, c);
+}
+
+void overflow_add(int a, int b)
+{
+ if( a > INT_MAX - b)
+ pm_error("object too large");
+}
+
+void *malloc2(int a, int b)
+{
+ overflow2(a, b);
+ if(a*b == 0)
+ pm_error("Zero byte allocation");
+ return malloc(a*b);
+}
+
+void *malloc3(int a, int b, int c)
+{
+ overflow3(a, b, c);
+ if(a*b*c == 0)
+ pm_error("Zero byte allocation");
+ return malloc(a*b*c);
+}
+
+void *realloc2(void * a, int b, int c)
+{
+ overflow2(b, c);
+ if(b*c == 0)
+ pm_error("Zero byte allocation");
+ return realloc(a, b*c);
+}
diff -ruNp a/lib/pm.h b/lib/pm.h
--- a/lib/pm.h 2021-06-02 15:53:59.866205957 +0200
+++ b/lib/pm.h 2021-06-02 20:23:21.833634466 +0200
@@ -442,5 +442,12 @@ pm_parse_height(const char * const arg);
}
#endif
+void *malloc2(int, int);
+void *malloc3(int, int, int);
+#define overflow2(a,b) __overflow2(a,b)
+void __overflow2(int, int);
+void overflow3(int, int, int);
+void overflow_add(int, int);
+
#endif
diff -ruNp a/other/pnmcolormap.c b/other/pnmcolormap.c
--- a/other/pnmcolormap.c 2021-06-02 15:53:59.882206111 +0200
+++ b/other/pnmcolormap.c 2021-06-02 20:23:21.833634466 +0200
@@ -1002,6 +1002,7 @@ colormapToSquare(struct pam * const pamP
pamP->width = intsqrt;
else
pamP->width = intsqrt + 1;
+ overflow_add(intsqrt, 1);
}
{
unsigned int const intQuotient = colormap.size / pamP->width;
diff -ruNp a/urt/rle_addhist.c b/urt/rle_addhist.c
--- a/urt/rle_addhist.c 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/rle_addhist.c 2021-06-02 20:23:21.834634475 +0200
@@ -70,13 +70,18 @@ rle_addhist(char * argv[],
return;
length = 0;
- for (i = 0; argv[i]; ++i)
+ for (i = 0; argv[i]; ++i) {
+ overflow_add(length, strlen(argv[i]));
+ overflow_add(length+1, strlen(argv[i]));
length += strlen(argv[i]) +1; /* length of each arg plus space. */
+ }
time(&temp);
timedate = ctime(&temp);
length += strlen(timedate); /* length of date and time in ASCII. */
-
+ overflow_add(strlen(padding), 4);
+ overflow_add(strlen(histoire), strlen(padding) + 4);
+ overflow_add(length, strlen(histoire) + strlen(padding) + 4);
length += strlen(padding) + 3 + strlen(histoire) + 1;
/* length of padding, "on " and length of history name plus "="*/
if (in_hdr) /* if we are interested in the old comments... */
@@ -84,8 +89,10 @@ rle_addhist(char * argv[],
else
old = NULL;
- if (old && *old)
+ if (old && *old) {
+ overflow_add(length, strlen(old));
length += strlen(old); /* add length if there. */
+ }
++length; /*Cater for the null. */
diff -ruNp a/urt/rle_getrow.c b/urt/rle_getrow.c
--- a/urt/rle_getrow.c 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/rle_getrow.c 2021-06-02 20:23:21.834634475 +0200
@@ -164,6 +164,7 @@ rle_get_setup(rle_hdr * const the_hdr) {
char * cp;
VAXSHORT(comlen, infile); /* get comment length */
+ overflow_add(comlen, 1);
evenlen = (comlen + 1) & ~1; /* make it even */
if (evenlen) {
MALLOCARRAY(comment_buf, evenlen);
diff -ruNp a/urt/rle.h b/urt/rle.h
--- a/urt/rle.h 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/rle.h 2021-06-02 20:23:21.834634475 +0200
@@ -153,6 +153,17 @@ rle_hdr /* End of typedef. *
*/
extern rle_hdr rle_dflt_hdr;
+/*
+ * Provided by pm library
+ */
+
+extern void overflow_add(int, int);
+#define overflow2(a,b) __overflow2(a,b)
+extern void __overflow2(int, int);
+extern void overflow3(int, int, int);
+extern void *malloc2(int, int);
+extern void *malloc3(int, int, int);
+extern void *realloc2(void *, int, int);
/* Declare RLE library routines. */
diff -ruNp a/urt/rle_hdr.c b/urt/rle_hdr.c
--- a/urt/rle_hdr.c 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/rle_hdr.c 2021-06-02 20:23:21.835634483 +0200
@@ -148,7 +148,7 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
if (toHdrP->cmap) {
size_t const size =
toHdrP->ncmap * (1 << toHdrP->cmaplen) * sizeof(rle_map);
- toHdrP->cmap = malloc(size);
+ toHdrP->cmap = malloc3(toHdrP->ncmap, 1<<toHdrP->cmaplen, sizeof(rle_map));
if (!toHdrP->cmap)
pm_error("Failed to allocate memory for %u color maps "
"of length %u", toHdrP->ncmap, 1 << toHdrP->cmaplen);
@@ -164,11 +164,16 @@ rle_hdr_cp(rle_hdr * const fromHdrP,
/* Count the comments. */
for (cp = toHdrP->comments, size = 0; *cp; ++cp)
+ {
+ overflow_add(size,1);
++size;
+ }
/* Check if there are really any comments. */
if (size > 0) {
+ overflow_add(size,1);
++size; /* Copy the NULL pointer, too. */
+ overflow2(size, sizeof(char *));
size *= sizeof(char *);
toHdrP->comments = malloc(size);
if (!toHdrP->comments)
diff -ruNp a/urt/rle_putcom.c b/urt/rle_putcom.c
--- a/urt/rle_putcom.c 2021-06-02 15:53:59.824205554 +0200
+++ b/urt/rle_putcom.c 2021-06-02 20:25:22.620707940 +0200
@@ -98,12 +98,14 @@ rle_putcom(const char * const value,
const char * v;
const char ** old_comments;
int i;
- for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp)
+ for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp) {
+ overflow_add(i, 1);
if (match(value, *cp) != NULL) {
v = *cp;
*cp = value;
return v;
}
+ }
/* Not found */
/* Can't realloc because somebody else might be pointing to this
* comments block. Of course, if this were true, then the
diff -ruNp a/urt/Runput.c b/urt/Runput.c
--- a/urt/Runput.c 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/Runput.c 2021-06-02 20:23:21.834634475 +0200
@@ -202,10 +202,11 @@ RunSetup(rle_hdr * the_hdr)
if ( the_hdr->background != 0 )
{
register int i;
- register rle_pixel *background =
- (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) );
- register int *bg_color;
- /*
+ register rle_pixel *background;
+ register int *bg_color;
+
+ overflow_add(the_hdr->ncolors,1);
+ background = (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) ); /*
* If even number of bg color bytes, put out one more to get to
* 16 bit boundary.
*/
@@ -224,7 +225,7 @@ RunSetup(rle_hdr * the_hdr)
/* Big-endian machines are harder */
register int i, nmap = (1 << the_hdr->cmaplen) *
the_hdr->ncmap;
- register char *h_cmap = (char *)malloc( nmap * 2 );
+ register char *h_cmap = (char *)malloc2( nmap, 2 );
if ( h_cmap == NULL )
{
fprintf( stderr,
diff -ruNp a/urt/scanargs.c b/urt/scanargs.c
--- a/urt/scanargs.c 2021-06-02 15:53:59.825205563 +0200
+++ b/urt/scanargs.c 2021-06-02 20:56:36.681068294 +0200
@@ -62,8 +62,8 @@ typedef int *ptr;
/*
* Storage allocation macros
*/
-#define NEW( type, cnt ) (type *) malloc( (cnt) * sizeof( type ) )
-#define RENEW( type, ptr, cnt ) (type *) realloc( ptr, (cnt) * sizeof( type ) )
+#define NEW( type, cnt ) (type *) malloc2( (cnt), sizeof( type ) )
+#define RENEW( type, ptr, cnt ) (type *) realloc2( ptr, (cnt), sizeof( type ) )
static CONST_DECL char * prformat( CONST_DECL char *, int );
static int isnum( CONST_DECL char *, int, int );
@@ -114,7 +114,7 @@ va_list argl;
bool required;
int excnt; /* which flag is set */
- unsigned int exflag; /* How many of a set of exclusive
+ bool exflag; /* when set, one of a set of exclusive
flags is set */
bool list_of; /* set if parsing off a list of args */
@@ -258,7 +258,7 @@ reswitch:
/* go back to label */
ncp = cp-1; /* remember */
cp -= 3;
- for (excnt = exflag = 0
+ for (excnt = 0, exflag = NO
; *cp != ' ' && !(*cp=='-' &&(cp[-1]=='!'||cp[-1]=='%'));
(--cp, excnt++))
{
@@ -273,7 +273,7 @@ reswitch:
ERROR ("extra flags ignored");
if (exflag)
ERROR ("more than one exclusive flag chosen");
- exflag++;
+ exflag = YES;
required = NO;
check += cnt;
arg_used[cnt] = 1;