Release 10.35.74

git-svn-id: http://svn.code.sf.net/p/netpbm/code/super_stable@1158 9d0c8265-081b-0410-96cb-a4ca84ce46f8

7 files changed, 45 insertions, 4 deletions

diff --git a/Makefile.version b/Makefile.version
index 03923193..126423fb 100644
--- a/Makefile.version
+++ b/Makefile.version
@@ -1,3 +1,3 @@
 NETPBM_MAJOR_RELEASE = 10
 NETPBM_MINOR_RELEASE = 35
-NETPBM_POINT_RELEASE = 73
+NETPBM_POINT_RELEASE = 74
diff --git a/analyzer/pnmhistmap.c b/analyzer/pnmhistmap.c
index 0b1eeb1f..0e5cf302 100644
--- a/analyzer/pnmhistmap.c
+++ b/analyzer/pnmhistmap.c
@@ -453,7 +453,7 @@ main (int argc, char ** argv) {
     else
         hist_width = range;
 
-    hscale = (float)hist_width / range;
+    hscale = (float)(hist_width-1) / (range-1);
     if (hscale - 1.0 < epsilon && cmdline.verbose)
         pm_message("Horizontal scale factor: %g (maxval = %u)", 
                    hscale, maxval);
diff --git a/converter/ppm/ppmtoilbm.c b/converter/ppm/ppmtoilbm.c
index 6c04c9be..7b38dd4d 100644
--- a/converter/ppm/ppmtoilbm.c
+++ b/converter/ppm/ppmtoilbm.c
@@ -37,6 +37,10 @@
 **  - added HAM colormap "rgb4" and "rgb5" (compute with 4/5-bit table)
 **  - added IFF text chunks
 **
+**  Feb 2010: afu
+**  Added dimension check to prevent short int from overflowing.
+**  
+**
 **  TODO:
 **  - multipalette capability (PCHG chunk) for std and HAM
 **
@@ -100,6 +104,8 @@
 #define DEF_DCOLPLANES  5
 #define DEF_IFMODE      MODE_DEEP
 
+#define INT16MAX 32767
+
 static void put_big_short ARGS((short s));
 static void put_big_long ARGS((long l));
 #define put_byte(b)     (void)(putc((unsigned char)(b), stdout))
@@ -1843,6 +1849,10 @@ init_read(fp, colsP, rowsP, maxvalP, formatP, readall)
     int readall;
 {
     ppm_readppminit(fp, colsP, rowsP, maxvalP, formatP);
+
+    if( *rowsP >INT16MAX || *colsP >INT16MAX )
+      pm_error ("Input image is too large.");
+
     if( readall ) {
         int row;
 
diff --git a/doc/HISTORY b/doc/HISTORY
index 065efd5c..350c4332 100644
--- a/doc/HISTORY
+++ b/doc/HISTORY
@@ -4,6 +4,20 @@ Netpbm.
 CHANGE HISTORY 
 --------------
 
+10.03.24 BJH  Release 10.35.74
+
+              pbmtext: don't crash when font file contains a blank line.
+              Fail cleanly.
+
+              ppmtoilbm: fix arithmetic overflow with image dimension
+              represented as 16 bit integer.
+
+              pbmpage: fix garbage output.
+
+              pnmhistmap: Fix crash with -width.  Always broken.
+
+              Build: don't fail due to SIGPWR being undefined.
+
 10.01.23 BJH  Release 10.35.73
 
               Restore ability of Pnmconvol convolution matrix to be a
diff --git a/generator/pbmpage.c b/generator/pbmpage.c
index e10ee6d6..fcf7af42 100644
--- a/generator/pbmpage.c
+++ b/generator/pbmpage.c
@@ -246,6 +246,9 @@ main(int argc,char** argv) {
     bitmap.Pwidth = (Width + 7) / 8;
     bitmap.bitmap = malloc(bitmap.Pwidth * bitmap.Height);
 
+    for (x = 0; x < bitmap.Pwidth * bitmap.Height; ++x)
+        bitmap.bitmap[x] = 0x00;
+    
     if (argc>1)
         TP = atoi(argv[1]);
 
diff --git a/lib/libpbmfont.c b/lib/libpbmfont.c
index c7b5a355..54cae478 100644
--- a/lib/libpbmfont.c
+++ b/lib/libpbmfont.c
@@ -1132,5 +1132,17 @@ int mk_max;
             s++;
     }
     vec[n] = 0;
+
+    /* Caller expects there to be at least one element in vec[], so we
+       can't return an empty line.  More advanced releases of Netpbm
+       just ignore blank lines.  If important, we can fairly easily port
+       the required code back to this release, by replacing readline()
+       with a current one, modified somewhat so it compiles here.
+
+       - Bryan 2010.03.23 
+    */
+    if (n < 1)
+        pm_error("Invalid font file -- contains a blank line");
+
     return n;
 }
diff --git a/lib/libsystem.c b/lib/libsystem.c
index 094480e7..6919bf2c 100644
--- a/lib/libsystem.c
+++ b/lib/libsystem.c
@@ -216,12 +216,14 @@ signalName(unsigned int const signalClass) {
             return "SIGWINCH";
         case SIGIO:
             return "SIGIO";
-        case SIGPWR:
-            return "SIGPWR";
         case SIGSYS:
             return "SIGSYS";
         default:
             return "???";
+
+            /* There are various other signal classes on some systems, but
+               not defined by POSIX, including: SIGPWR, SIGLOST, SIGINFO
+            */
         }
     } else if ((int)signalClass >= SIGRTMIN && (int)signalClass <= SIGRTMAX)
         return "SIGRTxxx";