<rdar://problem/14065748> pwgMediaForPWG: roll_max_36.1025x3622.0472in becomes 91700 x 180568 instead of 91700 x 9199999

Convert fractional portion separately to avoid integer overflow.


git-svn-id: svn+ssh://src.apple.com/svn/cups/cups.org/trunk@11011 a1ca3aef-8c08-0410-bb20-df032aa958be

2 files changed, 17 insertions, 2 deletions

diff --git a/cups/pwg-media.c b/cups/pwg-media.c
index 3a4cb9709..49f69297f 100644
--- a/cups/pwg-media.c
+++ b/cups/pwg-media.c
@@ -1132,6 +1132,7 @@ pwg_scan_measurement(
     int        denom)			/* I - Denominator from units */
 {
   int	value = 0,			/* Measurement value */
+	fractional = 0,			/* Fractional value */
 	divisor = 1,			/* Fractional divisor */
 	digits = 10 * numer * denom;	/* Maximum fractional value to read */
 
@@ -1153,7 +1154,7 @@ pwg_scan_measurement(
 
     while (divisor < digits && *buf >= '0' && *buf <= '9')
     {
-      value = value * 10 + (*buf++) - '0';
+      fractional = fractional * 10 + (*buf++) - '0';
       divisor *= 10;
     }
 
@@ -1168,7 +1169,7 @@ pwg_scan_measurement(
   if (bufptr)
     *bufptr = (char *)buf;
 
-  return (value * numer / denom / divisor);
+  return (value * numer / denom + fractional * numer / denom / divisor);
 }
 
 
diff --git a/cups/testpwg.c b/cups/testpwg.c
index b3d5cead5..58f6f73e4 100644
--- a/cups/testpwg.c
+++ b/cups/testpwg.c
@@ -170,6 +170,20 @@ main(int  argc,				/* I - Number of command-line args */
   else
     puts("PASS");
 
+  fputs("pwgMediaForPWG(\"roll_max_36.1025x3622.0472in\"): ", stdout);
+  if ((pwgmedia = pwgMediaForPWG("roll_max_36.1025x3622.0472in")) == NULL)
+  {
+    puts("FAIL (not found)");
+    status ++;
+  }
+  else if (pwgmedia->width != 91700 || pwgmedia->length != 9199999)
+  {
+    printf("FAIL (%dx%d)\n", pwgmedia->width, pwgmedia->length);
+    status ++;
+  }
+  else
+    printf("PASS (%dx%d)\n", pwgmedia->width, pwgmedia->length);
+
   fputs("pwgMediaForLegacy(\"na-letter\"): ", stdout);
   if ((pwgmedia = pwgMediaForLegacy("na-letter")) == NULL)
   {