[Magick-bugs] Bug in xpm.c

[Werner Meisner]

There was a bug in the new xpm-decoder that leds to a Segfault
on some xpm-files

The MagickMin(const size_t x,const size_t y)-function is only 
a work-around that ignores the symptoms

The following patch corrects the bug and leds to correct handling
of xpm-files

--- coders/xpm.c.old    2007-04-03 12:22:17.000000000 +0200
+++ coders/xpm.c        2007-04-03 12:23:30.000000000 +0200
@@ -191,6 +191,7 @@
     p=color;
     for (q=targets[i]; *p != '\0'; p++)
     {
+      if (*p == '\n') break;
       if (*p != *q)
         continue;
       if (isspace((int) ((unsigned char) (*(p-1)))) == 0)