🚀 go-pugleaf

If you are having trouble with cmail (from the xboard package, version
3.3.pl3 or earlier), particularly if it fails with a message about not
being able to find the BlackNA tag, apply the following patch to
pgntags.c and recompile xboard.

I'm a bit embarrassed about this bug.  I didn't make the coding error
myself, but I didn't look carefully enough at some submitted code to
notice it.  I'm even more embarrassed because I posted a patch that
didn't compile on my first try.

	--Tim

*** pgntags.c	1995/07/28 05:23:42	1.4
--- pgntags.c	1995/10/12 19:48:32
***************
*** 104,122 ****
  	    oldTags = "";
  	} else {
  	    oldTags = gameInfo->extraTags;
- 	    free(gameInfo->extraTags);
  	}
  	/* Buffer size includes 7 bytes of space for [ ""]\n\0 */
  	len = strlen(oldTags) + strlen(value) + strlen(name) + 7;
! 	if ((gameInfo->extraTags = (char *) malloc(len))  !=  NULL) {
! 	    sprintf(gameInfo->extraTags, "%s[%s \"%s\"]\n",
! 		    oldTags, name, value);
  	    success = TRUE;
  	} else {
  	    success = FALSE;
  	}
      }
- 
      return(success ? 0 : ENOMEM);
  }
  
--- 104,121 ----
  	    oldTags = "";
  	} else {
  	    oldTags = gameInfo->extraTags;
  	}
  	/* Buffer size includes 7 bytes of space for [ ""]\n\0 */
  	len = strlen(oldTags) + strlen(value) + strlen(name) + 7;
! 	if ((p = (char *) malloc(len))  !=  NULL) {
! 	    sprintf(p, "%s[%s \"%s\"]\n", oldTags, name, value);
! 	    if (gameInfo->extraTags != NULL) free(gameInfo->extraTags);
! 	    gameInfo->extraTags = p;
  	    success = TRUE;
  	} else {
  	    success = FALSE;
  	}
      }
      return(success ? 0 : ENOMEM);
  }