From 51f486589c2ed9a980ae6f28dfe9ef4698f564d6 Mon Sep 17 00:00:00 2001
From: Pasi Kallinen <paxed@alt.org>
Date: Thu, 21 May 2026 09:10:31 +0300
Subject: [PATCH] Add sysconf MAX_REROLLS option

Public servers probably want to set this.
---
 doc/fixes5-0-1.txt |  1 +
 include/sys.h      |  1 +
 src/cfgfiles.c     | 15 +++++++++++++++
 src/invent.c       | 27 +++++++++++++++++++++++----
 src/sys.c          |  1 +
 sys/unix/sysconf   |  4 ++++
 6 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/doc/fixes5-0-1.txt b/doc/fixes5-0-1.txt
index daa4ae615..1aa287b92 100644
--- a/doc/fixes5-0-1.txt
+++ b/doc/fixes5-0-1.txt
@@ -138,6 +138,7 @@ tty: allow custom glyph colors if they're basic 16 nethack colors
 
 General New Features
 --------------------
+sysconf option MAX_REROLLS to limit number of rerolls
 
 
 Platform- and/or Interface-Specific New Features
diff --git a/include/sys.h b/include/sys.h
index 2ea704cdb..6ad569dce 100644
--- a/include/sys.h
+++ b/include/sys.h
@@ -25,6 +25,7 @@ struct sysopt_s {
                        * -1: getenv() didn't find a value for DEBUGFILES.
                        */
     int maxplayers;
+    int maxrerolls;
     int seduce;
     int check_save_uid; /* restoring savefile checks UID? */
     int check_plname; /* use plname for checking wizards/explorers/shellers */
diff --git a/src/cfgfiles.c b/src/cfgfiles.c
index 4e410c880..6e870169e 100644
--- a/src/cfgfiles.c
+++ b/src/cfgfiles.c
@@ -74,6 +74,7 @@ staticfn boolean cnf_line_CHECK_PLNAME(char *);
 staticfn boolean cnf_line_SEDUCE(char *);
 staticfn boolean cnf_line_HIDEUSAGE(char *);
 staticfn boolean cnf_line_MAXPLAYERS(char *);
+staticfn boolean cnf_line_MAX_REROLLS(char *);
 staticfn boolean cnf_line_PERSMAX(char *);
 staticfn boolean cnf_line_PERS_IS_UID(char *);
 staticfn boolean cnf_line_ENTRYMAX(char *);
@@ -968,6 +969,19 @@ cnf_line_MAXPLAYERS(char *bufp)
     return TRUE;
 }
 
+staticfn boolean
+cnf_line_MAX_REROLLS(char *bufp)
+{
+    int n = atoi(bufp);
+
+    if (n < 0 || n > 255) {
+        config_error_add("Illegal value in MAX_REROLLS (maximum is 255)");
+        n = 10;
+    }
+    sysopt.maxrerolls = n;
+    return TRUE;
+}
+
 staticfn boolean
 cnf_line_PERSMAX(char *bufp)
 {
@@ -1349,6 +1363,7 @@ static const struct match_config_line_stmt {
     CNFL_S(SEDUCE, 6),
     CNFL_S(HIDEUSAGE, 9),
     CNFL_S(MAXPLAYERS, 10),
+    CNFL_S(MAX_REROLLS, 10),
     CNFL_S(PERSMAX, 7),
     CNFL_S(PERS_IS_UID, 11),
     CNFL_S(ENTRYMAX, 8),
diff --git a/src/invent.c b/src/invent.c
index 078c3c5d5..228eacd12 100644
--- a/src/invent.c
+++ b/src/invent.c
@@ -26,6 +26,7 @@ staticfn int ckvalidcat(struct obj *);
 staticfn int ckunpaid(struct obj *);
 staticfn char *safeq_xprname(struct obj *);
 staticfn char *safeq_shortxprname(struct obj *);
+staticfn boolean hit_reroll_limit(int);
 staticfn char display_pickinv(const char *, const char *, const char *,
                             boolean, boolean, long *);
 staticfn char display_used_invlets(char);
@@ -2540,6 +2541,15 @@ askchain(
     return cnt;
 }
 
+staticfn boolean
+hit_reroll_limit(int curr)
+{
+#ifdef SYSCF
+    if (sysopt.maxrerolls && curr >= (sysopt.maxrerolls-1))
+        return TRUE;
+#endif /*SYSCF*/
+    return FALSE;
+}
 
 /* The menu for rerolling attributes and inventory.
 
@@ -2569,9 +2579,17 @@ reroll_menu(void)
              ATR_NONE, NO_COLOR, "start the game with this character",
              MENU_ITEMFLAGS_NONE);
     any.a_char = 'y';
+    Strcat(buf, "reroll another character");
+#ifdef SYSCF
+    if (sysopt.maxrerolls > 0) {
+        char *bp = eos(buf);
+
+        Sprintf(bp, " (%li/%i)",
+                u.uroleplay.numrerolls+1, sysopt.maxrerolls);
+    }
+#endif /*SYSCF*/
     add_menu(win, &nul_glyphinfo, &any, flags.lootabc ? 0 : 'r', 0,
-             ATR_NONE, NO_COLOR, "reroll another character",
-             MENU_ITEMFLAGS_NONE);
+             ATR_NONE, NO_COLOR, buf, MENU_ITEMFLAGS_NONE);
     any.a_char = 0;
     add_menu(win, &nul_glyphinfo, &any, 0, 0, ATR_NONE, NO_COLOR, "",
              MENU_ITEMFLAGS_NONE);
@@ -2600,7 +2618,7 @@ reroll_menu(void)
     if (select_menu(win, PICK_ONE, &pick_list) > 0) {
         option = pick_list[0].item.a_char;
         free((genericptr_t) pick_list);
-    } else {
+    } else if (!hit_reroll_limit(u.uroleplay.numrerolls)) {
         /* user closed the menu without selecting; unclear what their choice
            is here so ask again; but (e.g. for hangup handling) stop asking if
            the user cancels out again */
@@ -2610,7 +2628,8 @@ reroll_menu(void)
 
     if (option == 'y') {
         ++u.uroleplay.numrerolls;
-        return TRUE;
+        if (!hit_reroll_limit(u.uroleplay.numrerolls))
+            return TRUE;
     }
     return FALSE;
 }
diff --git a/src/sys.c b/src/sys.c
index 758a93667..a5a0e87e0 100644
--- a/src/sys.c
+++ b/src/sys.c
@@ -59,6 +59,7 @@ sys_early_init(void)
     sysopt.genericusers = (char *) 0;
     sysopt.msghandler = (char *) 0;
     sysopt.maxplayers = 0; /* XXX eventually replace MAX_NR_OF_PLAYERS */
+    sysopt.maxrerolls = 0;
     sysopt.bones_pools = 0;
     sysopt.livelog = LL_NONE;
 
diff --git a/sys/unix/sysconf b/sys/unix/sysconf
index e960bd522..a8b136410 100644
--- a/sys/unix/sysconf
+++ b/sys/unix/sysconf
@@ -55,6 +55,10 @@ GENERICUSERS=play player game games nethack nethacker ec2-user
 # letter and "lock" (eg. alock, block, ...)
 MAXPLAYERS=10
 
+# Limit the number of rerolls
+# Default is 0 (meaning infinite), valid values are 0-255
+MAX_REROLLS=0
+
 # If not null, added to string "To get local support, " in the support
 # information help.
 #SUPPORT=call Izchak at extension 42.