New journal event output

To enable, set econfig key keep_journal to at least 2.  Output events
are *not* flushed to disk immediately.

Put it in Hvy Metal II now to gather real data for future testing of a
journal replay tool.

include/journal.h

@@ -34,12 +34,15 @@
 #ifndef JOURNAL_H
 #define JOURNAL_H
 
+struct player;			/* FIXME temporary hack */
+
 int journal_startup(void);
 void journal_shutdown(void);
 int journal_reopen(void);
 void journal_login(void);
 void journal_logout(void);
 void journal_prng(unsigned);
+void journal_output(struct player *, int, char *);
 void journal_input(char *);
 void journal_command(char *);
 void journal_update(int);

src/lib/subs/journal.c

@@ -46,6 +46,7 @@
  *     logout CNUM
  *     command NAME
  *     input INPUT
+ *     output THREAD ID OUTPUT
  *     update ETU
  */
 
@@ -99,6 +100,7 @@ journal_entry(char *fmt, ...)
 		fprintf(journal, "\\%03o", *p);
 	}
 	fputs("\n", journal);
+	if (fmt[0] != 'o')	/* FIXME disgusting hack */
 	    fflush(journal);
 	if (ferror(journal)) {
 	    logerror("Error writing journal (%s)", strerror(errno));
@@ -168,6 +170,17 @@ journal_logout(void)
     journal_entry("logout %d", player->cnum);
 }
 
+void
+journal_output(struct player *pl, int id, char *output)
+{
+    if (keep_journal < 2)
+	return;
+    if (pl && pl->state == PS_PLAYING)
+	journal_entry("output %d %d %s", pl->cnum, id, output);
+    else
+	journal_entry("output %p %d %s", pl, id, output);
+}
+
 void
 journal_input(char *input)
 {

src/lib/subs/pr.c

@@ -56,6 +56,7 @@
 #include "com.h"
 #include "empio.h"
 #include "file.h"
+#include "journal.h"
 #include "misc.h"
 #include "nat.h"
 #include "player.h"
@@ -245,6 +246,7 @@ pr_player(struct player *pl, int id, char *buf)
 	    bp += len;
 	}
     }
+    journal_output(pl, id, buf);
 }
 
 /*
@@ -299,6 +301,7 @@ upr_player(struct player *pl, int id, char *buf)
 	    io_puts(pl->iop, printbuf);
 	}
     }
+    journal_output(pl, id, buf);
 }
 
 /*