added LOC Support with privilege exchange and privilege class interface
[srvx.git] / src / opserv.c
index 38ad356ee2d84bbc14fbe97b3156460d054ed2da..0702a1072e9cebbf1783cc85429df6ab2271c1df 100644 (file)
 #define KEY_BLOCK_GLINE_DURATION "block_gline_duration"
 #define KEY_ISSUER "issuer"
 #define KEY_ISSUED "issued"
+#define KEY_DEVNULL_CLASSES "classes"
+#define KEY_DEVNULL_NAME "class"
+#define KEY_DEVNULL_MODE "modes"
+#define KEY_DEVNULL_MAXCHAN "chanlimit"
+#define KEY_DEVNULL_MAXSENDQ "sendq"
 
 #define IDENT_FORMAT            "%s [%s@%s/%s]"
 #define IDENT_DATA(user)        user->nick, user->ident, user->hostname, irc_ntoa(&user->ip)
@@ -257,6 +262,36 @@ static const struct message_entry msgtab[] = {
     { "OSMSG_CSEARCH_CHANNEL_INFO", "%s [%d users] %s %s" },
     { "OSMSG_TRACE_MAX_CHANNELS", "You may not use the 'channel' criterion more than %d times." },
     { "OSMSG_FORCEKICK_LOCAL", "You cannot kick $b%s$b forcefully." },
+    { "OSMSG_DEVNULL_USER" , "[%s] %s  %s" },
+    { "OSMSG_DEVNULL_MATCH" , "%d Users found." },
+    { "OSMSG_DEVNULL_CLASS" , "%s is not a valid DevNull class." },
+    { "OSMSG_DEVNULL_ADDED", "Added %s to DevNull list (class: %s)" },
+    { "OSMSG_DEVNULL_DELETED", "Deleted %s from DevNull list (class: %s)" },
+    { "OSMSG_DEVNULL_NOTADDED", "User %s is not listed on DevNull list." },
+    { "OSMSG_DEVNULL_ACTION", "Unrecognized trace action $b%s$b" },
+    { "OSMSG_DEVNULL_FOUND", "DevNull Class %s is already existing." },
+    { "OSMSG_DEVNULL_NOTFOUND", "can't find DevNull class %s." },
+    { "OSMSG_DEVNULL_ADDED", "DevNull Class %s added." },
+    { "OSMSG_DEVNULL_REMOVED", "DevNull Class %s removed." },
+    { "OSMSG_DEVNULL_SET", "Settings for DevNull Class %s" },
+    { "OSMSG_DEVNULL_SET_A", "ChanLimit:        %s" },
+    { "OSMSG_DEVNULL_SET_A_i", "ChanLimit:        %i" },
+    { "OSMSG_DEVNULL_SET_B", "UnlimitTarget:    %s" },
+    { "OSMSG_DEVNULL_SET_C", "Flood:            %s" },
+    { "OSMSG_DEVNULL_SET_E", "ChanHide:         %s" },
+    { "OSMSG_DEVNULL_SET_F", "IdleHide:         %s" },
+    { "OSMSG_DEVNULL_SET_G", "ChServMode:       %s" },
+    { "OSMSG_DEVNULL_SET_H", "XtraOpMode:       %s" },
+    { "OSMSG_DEVNULL_SET_I", "NetServMode:      %s" },
+    { "OSMSG_DEVNULL_SET_J", "SeeIdle:          %s" },
+    { "OSMSG_DEVNULL_SET_K", "ForceIdleHide:    %s" },
+    { "OSMSG_DEVNULL_SET_L", "OverrideCC:       %s" },
+    { "OSMSG_DEVNULL_SET_M", "OverrideNoAmsg:   %s" },
+    { "OSMSG_DEVNULL_SET_N", "MaxSendQ:         %s" },
+    { "OSMSG_DEVNULL_SET_N_i", "MaxSendQ:         %i" },
+    { "OSMSG_DEVNULL_SET_DONE", "Done." },
+    { "OSMSG_DEVNULL_RENAMED", "Devnull class %s renamed to %s" },
+    { "OSMSG_DEVNULL_SET_INVALID", "Invalid Option for setting %s" },
     { NULL, NULL }
 };
 
@@ -271,6 +306,7 @@ static dict_t opserv_reserved_nick_dict; /* data is struct userNode* */
 static struct string_list *opserv_bad_words;
 static dict_t opserv_exempt_channels; /* data is not used */
 static dict_t opserv_trusted_hosts; /* data is struct trusted_host* */
+static dict_t opserv_devnull_classes; /* data is struct devnull_class* */
 static dict_t opserv_hostinfo_dict; /* data is struct opserv_hostinfo* */
 static dict_t opserv_user_alerts; /* data is struct opserv_user_alert* */
 static dict_t opserv_nick_based_alerts; /* data is struct opserv_user_alert* */
@@ -279,7 +315,9 @@ static dict_t opserv_account_alerts; /* data is struct opserv_user_alert* */
 static struct module *opserv_module;
 static struct log_type *OS_LOG;
 static unsigned int new_user_flood;
+const char *devnull_modes = DEVNULL_MODES;
 static char *level_strings[1001];
+static char devnull_inverse_modes[256];
 
 static struct {
     struct chanNode *debug_channel;
@@ -2763,6 +2801,57 @@ trusted_host_read(const char *host, void *data, UNUSED_ARG(void *extra))
     return 0;
 }
 
+static void
+opserv_add_devnull_class(const char *name, unsigned long modes, unsigned long maxchan, unsigned long maxsendq)
+{
+    struct devnull_class *th;
+    th = calloc(1, sizeof(*th));
+    if (!th)
+        return;
+    th->name = strdup(name);
+    th->modes = modes;
+    th->maxchan = maxchan;
+    th->maxsendq = maxsendq;
+    dict_insert(opserv_devnull_classes, th->name, th);
+}
+
+static void
+free_devnull_class(void *data)
+{
+    struct devnull_class *th = data;
+    free(th->name);
+    free(th);
+}
+
+static int
+devnull_class_read(const char *name, void *data, UNUSED_ARG(void *extra))
+{
+    struct record_data *rd = data;
+    const char *nameb = name, *str;
+    unsigned long modes, maxchan, maxsendq;
+    unsigned int ii;
+
+    if (rd->type == RECDB_OBJECT) {
+        dict_t obj = GET_RECORD_OBJECT(rd);
+        /* new style structure */
+        nameb = database_get_data(obj, KEY_DEVNULL_NAME, RECDB_QSTRING);
+        str = database_get_data(obj, KEY_DEVNULL_MODE, RECDB_QSTRING);
+        modes = 0;
+        if (str) {
+            for (ii=0; str[ii]; ii++)
+                modes |= 1 << (devnull_inverse_modes[(unsigned char)str[ii]] - 1);
+        }
+        str = database_get_data(obj, KEY_DEVNULL_MAXCHAN, RECDB_QSTRING);
+        maxchan = str ? ParseInterval(str) : 0;
+        str = database_get_data(obj, KEY_DEVNULL_MAXSENDQ, RECDB_QSTRING);
+        maxsendq = str ? ParseInterval(str) : 0;
+    } else
+        return 0;
+
+    opserv_add_devnull_class(nameb, modes, maxchan, maxsendq);
+    return 0;
+}
+
 static int
 opserv_saxdb_read(struct dict *conf_db)
 {
@@ -2807,6 +2896,8 @@ opserv_saxdb_read(struct dict *conf_db)
     }
     if ((object = database_get_data(conf_db, KEY_TRUSTED_HOSTS, RECDB_OBJECT)))
         dict_foreach(object, trusted_host_read, opserv_trusted_hosts);
+    if ((object = database_get_data(conf_db, KEY_DEVNULL_CLASSES, RECDB_OBJECT)))
+        dict_foreach(object, devnull_class_read, opserv_devnull_classes);
     if ((object = database_get_data(conf_db, KEY_GAGS, RECDB_OBJECT)))
         dict_foreach(object, add_gag_helper, NULL);
     if ((object = database_get_data(conf_db, KEY_ALERTS, RECDB_OBJECT)))
@@ -2864,6 +2955,28 @@ opserv_saxdb_write(struct saxdb_context *ctx)
         }
         saxdb_end_record(ctx);
     }
+    /* devnull_classes */
+    if (dict_size(opserv_devnull_classes)) {
+        saxdb_start_record(ctx, KEY_DEVNULL_CLASSES, 1);
+        for (it = dict_first(opserv_devnull_classes); it; it = iter_next(it)) {
+            struct devnull_class *th = iter_data(it);
+            saxdb_start_record(ctx, iter_key(it), 0);
+            if (th->name) saxdb_write_string(ctx, KEY_DEVNULL_NAME, th->name);
+            if (th->modes) {
+                int ii, flen;
+                char flags[50];
+                for (ii=flen=0; devnull_modes[ii]; ++ii)
+                    if (th->modes & (1 << ii))
+                        flags[flen++] = devnull_modes[ii];
+                flags[flen] = 0;
+                saxdb_write_string(ctx, KEY_DEVNULL_MODE, flags);
+            }
+            if (th->maxchan) saxdb_write_int(ctx, KEY_DEVNULL_MAXCHAN, th->maxchan);
+            if (th->maxsendq) saxdb_write_int(ctx, KEY_DEVNULL_MAXSENDQ, th->maxsendq);
+            saxdb_end_record(ctx);
+        }
+        saxdb_end_record(ctx);
+    }
     /* gags */
     if (gagList) {
         struct gag_entry *gag;
@@ -4135,6 +4248,454 @@ static MODCMD_FUNC(cmd_delalert)
     return 1;
 }
 
+static MODCMD_FUNC(cmd_listdevnull)
+{
+    struct helpfile_table tbl;
+    unsigned int count = 0, ii = 0;
+    char *on,*off,*half;
+    on = "X";
+    off = "-";
+    half = "1/2";
+    
+    dict_iterator_t it;
+    for (it = dict_first(opserv_devnull_classes); it; it = iter_next(it)) {
+        count++;
+    }
+    tbl.length = count+1;
+    tbl.width = 14;
+    tbl.flags = 0;
+    tbl.flags = TABLE_NO_FREE;
+    tbl.contents = malloc(tbl.length * sizeof(tbl.contents[0]));
+    tbl.contents[0] = malloc(tbl.width * sizeof(tbl.contents[0][0]));
+    tbl.contents[0][0] = "Name";
+    tbl.contents[0][1] = "MC";
+    tbl.contents[0][2] = "UT";
+    tbl.contents[0][3] = "FL";
+    tbl.contents[0][4] = "CH";
+    tbl.contents[0][5] = "IH";
+    tbl.contents[0][6] = "SI";
+    tbl.contents[0][7] = "IH²";
+    tbl.contents[0][8] = "oC";
+    tbl.contents[0][9] = "oM";
+    tbl.contents[0][10] = "+k";
+    tbl.contents[0][11] = "+S";
+    tbl.contents[0][12] = "+X";
+    tbl.contents[0][13] = "MaxQ";
+    if(!count)
+    {
+        table_send(cmd->parent->bot, user->nick, 0, NULL, tbl);
+        reply("MSG_NONE");
+        free(tbl.contents[0]);
+        free(tbl.contents);
+        return 0;
+    }
+    for (it = dict_first(opserv_devnull_classes); it; it = iter_next(it)) {
+        struct devnull_class *th = iter_data(it);
+        tbl.contents[++ii] = malloc(tbl.width * sizeof(tbl.contents[0][0]));
+        tbl.contents[ii][0] = th->name;
+        if(DEVNULL_FLAGGED(th, MODE_A)) {
+            tbl.contents[ii][1] = strtab(th->maxchan);
+        } else {
+            tbl.contents[ii][1] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_B)) {
+            tbl.contents[ii][2] = on;
+        } else {
+            tbl.contents[ii][2] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_D)) {
+            tbl.contents[ii][3] = on;
+        } else if(DEVNULL_FLAGGED(th, MODE_C)) {
+            tbl.contents[ii][3] = half;
+        } else {
+            tbl.contents[ii][3] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_E)) {
+            tbl.contents[ii][4] = on;
+        } else {
+            tbl.contents[ii][4] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_F)) {
+            tbl.contents[ii][5] = on;
+        } else {
+            tbl.contents[ii][5] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_J)) {
+            tbl.contents[ii][6] = on;
+        } else {
+            tbl.contents[ii][6] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_K)) {
+            tbl.contents[ii][7] = on;
+        } else {
+            tbl.contents[ii][7] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_L)) {
+            tbl.contents[ii][8] = on;
+        } else {
+            tbl.contents[ii][8] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_M)) {
+            tbl.contents[ii][9] = on;
+        } else {
+            tbl.contents[ii][9] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_G)) {
+            tbl.contents[ii][10] = on;
+        } else {
+            tbl.contents[ii][10] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_I)) {
+            tbl.contents[ii][11] = on;
+        } else {
+            tbl.contents[ii][11] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_H)) {
+            tbl.contents[ii][12] = on;
+        } else {
+            tbl.contents[ii][12] = off;
+        }
+        if(DEVNULL_FLAGGED(th, MODE_N)) {
+            tbl.contents[ii][13] = on;
+        } else {
+            tbl.contents[ii][13] = off;
+        }
+    }
+    table_send(cmd->parent->bot, user->nick, 0, NULL, tbl);
+    for(ii = 1; ii < tbl.length; ++ii)
+    {
+        free(tbl.contents[ii]);
+    }
+    free(tbl.contents[0]);
+    free(tbl.contents);
+    send_message_type(4, user, opserv,"-");
+    /*
+    tbl.contents[0][1] = "MC";
+    tbl.contents[0][2] = "UT";
+    tbl.contents[0][3] = "FL";
+    tbl.contents[0][4] = "CH";
+    tbl.contents[0][5] = "IH";
+    tbl.contents[0][6] = "SI";
+    tbl.contents[0][7] = "IH²";
+    tbl.contents[0][8] = "oC";
+    tbl.contents[0][9] = "oM";
+    tbl.contents[0][10] = "+k";
+    tbl.contents[0][11] = "+S";
+    tbl.contents[0][12] = "+X";
+    tbl.contents[0][13] = "MaxQ";
+    */
+    send_message_type(4, user, opserv,"MC = MaxChan");
+       send_message_type(4, user, opserv,"UT = UnlimitTargets");
+       send_message_type(4, user, opserv,"FL = Flood (1 = 1/2 flood, X = unlimited)");
+       send_message_type(4, user, opserv,"CH = Channel Hide (mode +n)");
+       send_message_type(4, user, opserv,"IH = Idle Hide (mode +I)");
+       send_message_type(4, user, opserv,"SI = See Idle");
+       send_message_type(4, user, opserv,"IH² = Idle Hide (override SI)");
+       send_message_type(4, user, opserv,"oC = Color override (mode +c)");
+    send_message_type(4, user, opserv,"oM = AMsg override");
+       send_message_type(4, user, opserv,"+k = ChanServ Mode (mode +k)");
+    send_message_type(4, user, opserv,"+S = NetServ Mode (mode +S)");
+    send_message_type(4, user, opserv,"+X = XtraOp Mode (mode +X)");
+    return 1;
+}
+
+static MODCMD_FUNC(cmd_adddevnull)
+{
+
+    if (dict_find(opserv_devnull_classes, argv[1], NULL)) {
+        reply("OSMSG_DEVNULL_FOUND", argv[1]);
+        return 0;
+    }
+    
+    opserv_add_devnull_class(argv[1], 0, 0, 0);
+    reply("OSMSG_DEVNULL_ADDED",argv[1]);
+    return 1;
+}
+
+
+static MODCMD_FUNC(cmd_deldevnull)
+{
+    unsigned int n;
+
+    for (n=1; n<argc; n++) {
+        struct devnull_class *th = dict_find(opserv_devnull_classes, argv[n], NULL);
+        if (!th)
+            continue;
+        nickserv_devnull_delete(th->name);
+        dict_remove(opserv_devnull_classes, argv[n]);
+        reply("OSMSG_DEVNULL_REMOVED",argv[n]);
+    }
+    return 1;
+}
+
+static MODCMD_FUNC(cmd_renamedevnull)
+{
+    struct devnull_class *th;
+    if (dict_find(opserv_devnull_classes, argv[2], NULL)) {
+        reply("OSMSG_DEVNULL_FOUND", argv[2]);
+        return 0;
+    }
+    if ((th = dict_find(opserv_devnull_classes, argv[1], NULL))) {
+        opserv_add_devnull_class(argv[2], th->modes, th->maxchan, th->maxsendq);
+        nickserv_devnull_rename(th->name,argv[2]);
+        dict_remove(opserv_devnull_classes, argv[1]);
+        reply("OSMSG_DEVNULL_RENAMED",argv[1],argv[2]);
+    } else {
+        reply("OSMSG_DEVNULL_NOTFOUND", argv[1]);
+        return 0;
+    }
+    return 1;
+}
+
+static MODCMD_FUNC(cmd_setdevnull)
+{
+    struct devnull_class *th;
+    unsigned int offset=0;
+    if ((th = dict_find(opserv_devnull_classes, argv[offset+1], NULL))) {
+        if (argc > 3) {
+            unsigned int ii;
+            for( ii = 0; argv[offset+2][ ii ]; ii++)
+                argv[offset+2][ ii ] = toupper( argv[offset+2][ ii ] );
+            for( ii = 0; argv[offset+3][ ii ]; ii++)
+                argv[offset+3][ ii ] = toupper( argv[offset+3][ ii ] );
+            if(!strcmp("CHANLIMIT",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_A);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  DEVNULL_SET_FLAG(th, MODE_A);
+                  th->maxchan = strtoul(argv[offset+3], NULL, 0);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 }
+            }
+            else if(!strcmp("UNLIMITTARGET",argv[offset+2]) || !strcmp("UNLIMITEDTARGET",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_B);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_B);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("FLOOD",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_C);
+                  DEVNULL_CLEAR_FLAG(th, MODE_D);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_D);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("HALF",argv[offset+3]) || !strcmp("2",argv[offset+3]) || !strcmp("1/2",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_C);
+                  DEVNULL_CLEAR_FLAG(th, MODE_D);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("CHANHIDE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_E);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_E);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("IDLEHIDE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_F);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_F);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("CHSERVMODE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_G);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_G);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("XTRAOPMODE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_H);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_H);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("NETSERVMODE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_I);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_I);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("SEEIDLE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_J);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_J);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("FORCEIDLEHIDE",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_K);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_K);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("OVERRIDECC",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_L);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_L);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("OVERRIDENOAMSG",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_M);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else if (!strcmp("ON",argv[offset+3]) || !strcmp("1",argv[offset+3])) {
+                  DEVNULL_SET_FLAG(th, MODE_M);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+3]);
+                 }
+            }
+            else if(!strcmp("MAXSENDQ",argv[offset+2])) {
+                 if (!strcmp("OFF",argv[offset+3]) || !strcmp("0",argv[offset+3])) {
+                  DEVNULL_CLEAR_FLAG(th, MODE_N);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 } else {
+                  DEVNULL_SET_FLAG(th, MODE_N);
+                  th->maxsendq = strtoul(argv[offset+3], NULL, 0);
+                  reply("OSMSG_DEVNULL_SET_DONE");
+                 }
+            } else {
+                 reply("OSMSG_DEVNULL_SET_INVALID", argv[offset+2]);
+            }
+            
+        } else {
+            reply("OSMSG_DEVNULL_SET", th->name);
+            if(DEVNULL_FLAGGED(th, MODE_A)) {
+                reply("OSMSG_DEVNULL_SET_A_i", th->maxchan);
+            } else {
+                reply("OSMSG_DEVNULL_SET_A", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_B)) {
+                reply("OSMSG_DEVNULL_SET_B", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_B", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_D)) {
+                reply("OSMSG_DEVNULL_SET_C", "on");
+            } else if(DEVNULL_FLAGGED(th, MODE_C)) {
+                reply("OSMSG_DEVNULL_SET_C", "half");
+            } else {
+                reply("OSMSG_DEVNULL_SET_C", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_E)) {
+                reply("OSMSG_DEVNULL_SET_E", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_E", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_F)) {
+                reply("OSMSG_DEVNULL_SET_F", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_F", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_G)) {
+                reply("OSMSG_DEVNULL_SET_G", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_G", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_H)) {
+                reply("OSMSG_DEVNULL_SET_H", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_H", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_I)) {
+                reply("OSMSG_DEVNULL_SET_I", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_I", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_J)) {
+                reply("OSMSG_DEVNULL_SET_J", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_J", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_K)) {
+                reply("OSMSG_DEVNULL_SET_K", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_K", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_L)) {
+                reply("OSMSG_DEVNULL_SET_L", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_L", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_M)) {
+                reply("OSMSG_DEVNULL_SET_M", "on");
+            } else {
+                reply("OSMSG_DEVNULL_SET_M", "off");
+            }
+            if(DEVNULL_FLAGGED(th, MODE_N)) {
+                reply("OSMSG_DEVNULL_SET_N_i", th->maxsendq);
+            } else {
+                reply("OSMSG_DEVNULL_SET_N", "off");
+            }
+        }
+    } else {
+        reply("OSMSG_DEVNULL_NOTFOUND", argv[offset+1]);
+        return 0;
+    }
+    return 1;
+}
+
+int devnull_check(const char *name) { 
+    if (dict_find(opserv_devnull_classes, name, NULL)) {
+        return 1;
+    }
+    return 0;
+}
+
+struct devnull_class* 
+    devnull_get(const char *name) {
+    return dict_find(opserv_devnull_classes, name, NULL);
+}
+
 static void
 opserv_conf_read(void)
 {
@@ -4224,6 +4785,10 @@ opserv_db_init(void) {
     dict_delete(opserv_trusted_hosts);
     opserv_trusted_hosts = dict_new();
     dict_set_free_data(opserv_trusted_hosts, free_trusted_host);
+    /* set up opserv_devnull_classes dict */
+    dict_delete(opserv_devnull_classes);
+    opserv_devnull_classes = dict_new();
+    dict_set_free_data(opserv_devnull_classes, free_devnull_class);
     /* set up opserv_chan_warn dict */
     dict_delete(opserv_chan_warn);
     opserv_chan_warn = dict_new();
@@ -4259,6 +4824,7 @@ opserv_db_cleanup(void)
     free_string_list(opserv_bad_words);
     dict_delete(opserv_exempt_channels);
     dict_delete(opserv_trusted_hosts);
+    dict_delete(opserv_devnull_classes);
     unreg_del_user_func(opserv_user_cleanup);
     dict_delete(opserv_hostinfo_dict);
     dict_delete(opserv_nick_based_alerts);
@@ -4283,6 +4849,13 @@ init_opserv(const char *nick)
     }
     conf_register_reload(opserv_conf_read);
 
+    unsigned int i;
+    /* set up handle_inverse_flags */
+    memset(devnull_inverse_modes, 0, sizeof(devnull_inverse_modes));
+    for (i=0; devnull_modes[i]; i++) {
+        devnull_inverse_modes[(unsigned char)devnull_modes[i]] = i + 1;
+    }
+
     memset(level_strings, 0, sizeof(level_strings));
     opserv_module = module_register("OpServ", OS_LOG, "opserv.help", opserv_help_expand);
     opserv_define_func("ACCESS", cmd_access, 0, 0, 0);
@@ -4361,6 +4934,11 @@ init_opserv(const char *nick)
 #if defined(WITH_MALLOC_SRVX) || defined(WITH_MALLOC_SLAB)
     opserv_define_func("STATS MEMORY", cmd_stats_memory, 0, 0, 0);
 #endif
+    opserv_define_func("DEVNULL ADD", cmd_adddevnull, 200, 0, 2);
+    opserv_define_func("DEVNULL DEL", cmd_deldevnull, 200, 0, 2);
+    opserv_define_func("DEVNULL RENAME", cmd_renamedevnull, 200, 0, 3);
+    opserv_define_func("DEVNULL SET", cmd_setdevnull, 200, 0, 2);
+    opserv_define_func("DEVNULL LIST", cmd_listdevnull, 200, 0, 0);
     opserv_define_func("TRACE", cmd_trace, 100, 0, 3);
     opserv_define_func("TRACE PRINT", NULL, 0, 0, 0);
     opserv_define_func("TRACE COUNT", NULL, 0, 0, 0);