Attachment 144462 Details for Bug 201739 – fix endless loop

[patch] fix endless loop

Macaulay2-0.9.95-personality.patch (text/plain), 1.07 KB, created by David Woodhouse on 2006-12-28 13:18:49 UTC

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Creator: David Woodhouse

Created: 2006-12-28 13:18:49 UTC

Size: 1.07 KB

patch

obsolete

>--- Macaulay2-0.9.95/Macaulay2/d/M2lib.c~	2006-10-15 23:22:55.000000000 +0100
>+++ Macaulay2-0.9.95/Macaulay2/d/M2lib.c	2006-12-28 12:59:30.000000000 +0000
>@@ -368,7 +368,19 @@ char **argv;
> 	       personality(oldpersonality | ADDR_NO_RANDOMIZE);
> 	       newpersonality = personality(-1);
> 	       personality(oldpersonality | ADDR_NO_RANDOMIZE);	/* just in case the previous line sets the personality to -1, which can happen */
>-	       if ((newpersonality & ADDR_NO_RANDOMIZE) != 0) return execvp(argv[0],argv);
>+	       if ((newpersonality & ADDR_NO_RANDOMIZE) != 0) {
>+		       /* Sometimes the personality isn't inherited.
>+			  Prevent endless loops by adding --no-personality to
>+			  the command line */
>+		       char **new_argv = malloc((argc+2) * sizeof(char *));
>+		       if (!new_argv) fatal("out of memory");
>+
>+		       new_argv[0] = argv[0];
>+		       new_argv[1] = "--no-personality";
>+		       memcpy(&new_argv[2], &argv[1], sizeof(char *) * (argc));
>+		       
>+		       return execvp(new_argv[0],new_argv);
>+	       }
> 	  }
> 	  else personality(oldpersonality);
>      }

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Attachments on bug 201739: 144462