Safer handling of MULTI/EXEC on errors.

[redis.git] / src / config.c

diff --git a/src/config.c b/src/config.c
index 9d28d6780387ded093fdc56e8b53dc6428158eec..7e8f8a2ba9440936cbd74e790a350affd12d92d6 100644 (file)
--- a/src/config.c
+++ b/src/config.c
@@ -1,3 +1,34 @@
+/* Configuration file parsing and CONFIG GET/SET commands implementation.
+ *
+ * Copyright (c) 2009-2012, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+

 #include "redis.h"
 
 /*-----------------------------------------------------------------------------
 #include "redis.h"
 
 /*-----------------------------------------------------------------------------


@@ -155,6 +186,9 @@ void loadServerConfigFromString(char *config) {
             loadServerConfig(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"maxclients") && argc == 2) {
             server.maxclients = atoi(argv[1]);
             loadServerConfig(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"maxclients") && argc == 2) {
             server.maxclients = atoi(argv[1]);

+            if (server.maxclients < 1) {
+                err = "Invalid max clients limit"; goto loaderr;
+            }

         } else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) {
             server.maxmemory = memtoll(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"maxmemory-policy") && argc == 2) {
         } else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) {
             server.maxmemory = memtoll(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"maxmemory-policy") && argc == 2) {


@@ -202,12 +236,18 @@ void loadServerConfigFromString(char *config) {
             if ((server.repl_serve_stale_data = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
             if ((server.repl_serve_stale_data = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }

-        } else if (!strcasecmp(argv[0],"glueoutputbuf")) {
-            redisLog(REDIS_WARNING, "Deprecated configuration directive: \"%s\"", argv[0]);
+        } else if (!strcasecmp(argv[0],"slave-read-only") && argc == 2) {
+            if ((server.repl_slave_ro = yesnotoi(argv[1])) == -1) {
+                err = "argument must be 'yes' or 'no'"; goto loaderr;
+            }

         } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) {
             if ((server.rdb_compression = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) {
             if ((server.rdb_compression = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }

+        } else if (!strcasecmp(argv[0],"rdbchecksum") && argc == 2) {
+            if ((server.rdb_checksum = yesnotoi(argv[1])) == -1) {
+                err = "argument must be 'yes' or 'no'"; goto loaderr;
+            }

         } else if (!strcasecmp(argv[0],"activerehashing") && argc == 2) {
             if ((server.activerehashing = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
         } else if (!strcasecmp(argv[0],"activerehashing") && argc == 2) {
             if ((server.activerehashing = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;


@@ -255,6 +295,10 @@ void loadServerConfigFromString(char *config) {
         {
             server.aof_rewrite_min_size = memtoll(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"requirepass") && argc == 2) {
         {
             server.aof_rewrite_min_size = memtoll(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"requirepass") && argc == 2) {

+            if (strlen(argv[1]) > REDIS_AUTHPASS_MAX_LEN) {
+                err = "Password is longer than REDIS_AUTHPASS_MAX_LEN";
+                goto loaderr;
+            }

             server.requirepass = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"pidfile") && argc == 2) {
             zfree(server.pidfile);
             server.requirepass = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"pidfile") && argc == 2) {
             zfree(server.pidfile);


@@ -262,10 +306,10 @@ void loadServerConfigFromString(char *config) {
         } else if (!strcasecmp(argv[0],"dbfilename") && argc == 2) {
             zfree(server.rdb_filename);
             server.rdb_filename = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"dbfilename") && argc == 2) {
             zfree(server.rdb_filename);
             server.rdb_filename = zstrdup(argv[1]);

-        } else if (!strcasecmp(argv[0],"hash-max-zipmap-entries") && argc == 2) {
-            server.hash_max_zipmap_entries = memtoll(argv[1], NULL);
-        } else if (!strcasecmp(argv[0],"hash-max-zipmap-value") && argc == 2) {
-            server.hash_max_zipmap_value = memtoll(argv[1], NULL);
+        } else if (!strcasecmp(argv[0],"hash-max-ziplist-entries") && argc == 2) {
+            server.hash_max_ziplist_entries = memtoll(argv[1], NULL);
+        } else if (!strcasecmp(argv[0],"hash-max-ziplist-value") && argc == 2) {
+            server.hash_max_ziplist_value = memtoll(argv[1], NULL);

         } else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){
             server.list_max_ziplist_entries = memtoll(argv[1], NULL);
         } else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) {
         } else if (!strcasecmp(argv[0],"list-max-ziplist-entries") && argc == 2){
             server.list_max_ziplist_entries = memtoll(argv[1], NULL);
         } else if (!strcasecmp(argv[0],"list-max-ziplist-value") && argc == 2) {


@@ -300,13 +344,6 @@ void loadServerConfigFromString(char *config) {
                     err = "Target command name already exists"; goto loaderr;
                 }
             }
                     err = "Target command name already exists"; goto loaderr;
                 }
             }

-        } else if (!strcasecmp(argv[0],"cluster-enabled") && argc == 2) {
-            if ((server.cluster_enabled = yesnotoi(argv[1])) == -1) {
-                err = "argument must be 'yes' or 'no'"; goto loaderr;
-            }
-        } else if (!strcasecmp(argv[0],"cluster-config-file") && argc == 2) {
-            zfree(server.cluster.configfile);
-            server.cluster.configfile = zstrdup(argv[1]);

         } else if (!strcasecmp(argv[0],"lua-time-limit") && argc == 2) {
             server.lua_time_limit = strtoll(argv[1],NULL,10);
         } else if (!strcasecmp(argv[0],"slowlog-log-slower-than") &&
         } else if (!strcasecmp(argv[0],"lua-time-limit") && argc == 2) {
             server.lua_time_limit = strtoll(argv[1],NULL,10);
         } else if (!strcasecmp(argv[0],"slowlog-log-slower-than") &&


@@ -336,6 +373,24 @@ void loadServerConfigFromString(char *config) {
             server.client_obuf_limits[class].hard_limit_bytes = hard;
             server.client_obuf_limits[class].soft_limit_bytes = soft;
             server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
             server.client_obuf_limits[class].hard_limit_bytes = hard;
             server.client_obuf_limits[class].soft_limit_bytes = soft;
             server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;

+        } else if (!strcasecmp(argv[0],"stop-writes-on-bgsave-error") &&
+                   argc == 2) {
+            if ((server.stop_writes_on_bgsave_err = yesnotoi(argv[1])) == -1) {
+                err = "argument must be 'yes' or 'no'"; goto loaderr;
+            }
+        } else if (!strcasecmp(argv[0],"slave-priority") && argc == 2) {
+            server.slave_priority = atoi(argv[1]);
+        } else if (!strcasecmp(argv[0],"sentinel")) {
+            /* argc == 1 is handled by main() as we need to enter the sentinel
+             * mode ASAP. */
+            if (argc != 1) {
+                if (!server.sentinel_mode) {
+                    err = "sentinel directive while not in sentinel mode";
+                    goto loaderr;
+                }
+                err = sentinelHandleConfiguration(argv+1,argc-1);
+                if (err) goto loaderr;
+            }

         } else {
             err = "Bad directive or wrong number of arguments"; goto loaderr;
         }
         } else {
             err = "Bad directive or wrong number of arguments"; goto loaderr;
         }


@@ -404,6 +459,7 @@ void configSetCommand(redisClient *c) {
         zfree(server.rdb_filename);
         server.rdb_filename = zstrdup(o->ptr);
     } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) {
         zfree(server.rdb_filename);
         server.rdb_filename = zstrdup(o->ptr);
     } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) {

+        if (sdslen(o->ptr) > REDIS_AUTHPASS_MAX_LEN) goto badfmt;

         zfree(server.requirepass);
         server.requirepass = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL;
     } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) {
         zfree(server.requirepass);
         server.requirepass = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL;
     } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) {


@@ -413,7 +469,12 @@ void configSetCommand(redisClient *c) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
             ll < 0) goto badfmt;
         server.maxmemory = ll;
         if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
             ll < 0) goto badfmt;
         server.maxmemory = ll;

-        if (server.maxmemory) freeMemoryIfNeeded();
+        if (server.maxmemory) {
+            if (server.maxmemory < zmalloc_used_memory()) {
+                redisLog(REDIS_WARNING,"WARNING: the new maxmemory value set via CONFIG SET is smaller than the current memory usage. This will result in keys eviction and/or inability to accept new write commands depending on the maxmemory-policy.");
+            }
+            freeMemoryIfNeeded();
+        }

     } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory-policy")) {
         if (!strcasecmp(o->ptr,"volatile-lru")) {
             server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU;
     } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory-policy")) {
         if (!strcasecmp(o->ptr,"volatile-lru")) {
             server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU;


@@ -511,17 +572,22 @@ void configSetCommand(redisClient *c) {
 
         if (yn == -1) goto badfmt;
         server.repl_serve_stale_data = yn;
 
         if (yn == -1) goto badfmt;
         server.repl_serve_stale_data = yn;

+    } else if (!strcasecmp(c->argv[2]->ptr,"slave-read-only")) {
+        int yn = yesnotoi(o->ptr);
+
+        if (yn == -1) goto badfmt;
+        server.repl_slave_ro = yn;

     } else if (!strcasecmp(c->argv[2]->ptr,"dir")) {
         if (chdir((char*)o->ptr) == -1) {
             addReplyErrorFormat(c,"Changing directory: %s", strerror(errno));
             return;
         }
     } else if (!strcasecmp(c->argv[2]->ptr,"dir")) {
         if (chdir((char*)o->ptr) == -1) {
             addReplyErrorFormat(c,"Changing directory: %s", strerror(errno));
             return;
         }

-    } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-zipmap-entries")) {
+    } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-ziplist-entries")) {

         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;

-        server.hash_max_zipmap_entries = ll;
-    } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-zipmap-value")) {
+        server.hash_max_ziplist_entries = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"hash-max-ziplist-value")) {

         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;

-        server.hash_max_zipmap_value = ll;
+        server.hash_max_ziplist_value = ll;

     } else if (!strcasecmp(c->argv[2]->ptr,"list-max-ziplist-entries")) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
         server.list_max_ziplist_entries = ll;
     } else if (!strcasecmp(c->argv[2]->ptr,"list-max-ziplist-entries")) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
         server.list_max_ziplist_entries = ll;


@@ -604,7 +670,37 @@ void configSetCommand(redisClient *c) {
             server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
         }
         sdsfreesplitres(v,vlen);
             server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
         }
         sdsfreesplitres(v,vlen);

+    } else if (!strcasecmp(c->argv[2]->ptr,"stop-writes-on-bgsave-error")) {
+        int yn = yesnotoi(o->ptr);

 
 

+        if (yn == -1) goto badfmt;
+        server.stop_writes_on_bgsave_err = yn;
+    } else if (!strcasecmp(c->argv[2]->ptr,"repl-ping-slave-period")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt;
+        server.repl_ping_slave_period = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"repl-timeout")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll <= 0) goto badfmt;
+        server.repl_timeout = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"watchdog-period")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
+        if (ll)
+            enableWatchdog(ll);
+        else
+            disableWatchdog();
+    } else if (!strcasecmp(c->argv[2]->ptr,"rdbcompression")) {
+        int yn = yesnotoi(o->ptr);
+
+        if (yn == -1) goto badfmt;
+        server.rdb_compression = yn;
+    } else if (!strcasecmp(c->argv[2]->ptr,"rdbchecksum")) {
+        int yn = yesnotoi(o->ptr);
+
+        if (yn == -1) goto badfmt;
+        server.rdb_checksum = yn;
+    } else if (!strcasecmp(c->argv[2]->ptr,"slave-priority")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
+            ll <= 0) goto badfmt;
+        server.slave_priority = ll;

     } else {
         addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s",
             (char*)c->argv[2]->ptr);
     } else {
         addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s",
             (char*)c->argv[2]->ptr);


@@ -619,6 +715,31 @@ badfmt: /* Bad format errors */
             (char*)c->argv[2]->ptr);
 }
 
             (char*)c->argv[2]->ptr);
 }
 

+#define config_get_string_field(_name,_var) do { \
+    if (stringmatch(pattern,_name,0)) { \
+        addReplyBulkCString(c,_name); \
+        addReplyBulkCString(c,_var ? _var : ""); \
+        matches++; \
+    } \
+} while(0);
+
+#define config_get_bool_field(_name,_var) do { \
+    if (stringmatch(pattern,_name,0)) { \
+        addReplyBulkCString(c,_name); \
+        addReplyBulkCString(c,_var ? "yes" : "no"); \
+        matches++; \
+    } \
+} while(0);
+
+#define config_get_numerical_field(_name,_var) do { \
+    if (stringmatch(pattern,_name,0)) { \
+        ll2string(buf,sizeof(buf),_var); \
+        addReplyBulkCString(c,_name); \
+        addReplyBulkCString(c,buf); \
+        matches++; \
+    } \
+} while(0);
+

 void configGetCommand(redisClient *c) {
     robj *o = c->argv[2];
     void *replylen = addDeferredMultiBulkLength(c);
 void configGetCommand(redisClient *c) {
     robj *o = c->argv[2];
     void *replylen = addDeferredMultiBulkLength(c);


@@ -627,6 +748,71 @@ void configGetCommand(redisClient *c) {
     int matches = 0;
     redisAssertWithInfo(c,o,o->encoding == REDIS_ENCODING_RAW);
 
     int matches = 0;
     redisAssertWithInfo(c,o,o->encoding == REDIS_ENCODING_RAW);
 

+    /* String values */
+    config_get_string_field("dbfilename",server.rdb_filename);
+    config_get_string_field("requirepass",server.requirepass);
+    config_get_string_field("masterauth",server.requirepass);
+    config_get_string_field("bind",server.bindaddr);
+    config_get_string_field("unixsocket",server.unixsocket);
+    config_get_string_field("logfile",server.logfile);
+    config_get_string_field("pidfile",server.pidfile);
+
+    /* Numerical values */
+    config_get_numerical_field("maxmemory",server.maxmemory);
+    config_get_numerical_field("maxmemory-samples",server.maxmemory_samples);
+    config_get_numerical_field("timeout",server.maxidletime);
+    config_get_numerical_field("auto-aof-rewrite-percentage",
+            server.aof_rewrite_perc);
+    config_get_numerical_field("auto-aof-rewrite-min-size",
+            server.aof_rewrite_min_size);
+    config_get_numerical_field("hash-max-ziplist-entries",
+            server.hash_max_ziplist_entries);
+    config_get_numerical_field("hash-max-ziplist-value",
+            server.hash_max_ziplist_value);
+    config_get_numerical_field("list-max-ziplist-entries",
+            server.list_max_ziplist_entries);
+    config_get_numerical_field("list-max-ziplist-value",
+            server.list_max_ziplist_value);
+    config_get_numerical_field("set-max-intset-entries",
+            server.set_max_intset_entries);
+    config_get_numerical_field("zset-max-ziplist-entries",
+            server.zset_max_ziplist_entries);
+    config_get_numerical_field("zset-max-ziplist-value",
+            server.zset_max_ziplist_value);
+    config_get_numerical_field("lua-time-limit",server.lua_time_limit);
+    config_get_numerical_field("slowlog-log-slower-than",
+            server.slowlog_log_slower_than);
+    config_get_numerical_field("slowlog-max-len",
+            server.slowlog_max_len);
+    config_get_numerical_field("port",server.port);
+    config_get_numerical_field("databases",server.dbnum);
+    config_get_numerical_field("repl-ping-slave-period",server.repl_ping_slave_period);
+    config_get_numerical_field("repl-timeout",server.repl_timeout);
+    config_get_numerical_field("maxclients",server.maxclients);
+    config_get_numerical_field("watchdog-period",server.watchdog_period);
+    config_get_numerical_field("slave-priority",server.slave_priority);
+
+    /* Bool (yes/no) values */
+    config_get_bool_field("no-appendfsync-on-rewrite",
+            server.aof_no_fsync_on_rewrite);
+    config_get_bool_field("slave-serve-stale-data",
+            server.repl_serve_stale_data);
+    config_get_bool_field("slave-read-only",
+            server.repl_slave_ro);
+    config_get_bool_field("stop-writes-on-bgsave-error",
+            server.stop_writes_on_bgsave_err);
+    config_get_bool_field("daemonize", server.daemonize);
+    config_get_bool_field("rdbcompression", server.rdb_compression);
+    config_get_bool_field("rdbchecksum", server.rdb_checksum);
+    config_get_bool_field("activerehashing", server.activerehashing);
+
+    /* Everything we can't handle with macros follows. */
+
+    if (stringmatch(pattern,"appendonly",0)) {
+        addReplyBulkCString(c,"appendonly");
+        addReplyBulkCString(c,server.aof_state == REDIS_AOF_OFF ? "no" : "yes");
+        matches++;
+    }

     if (stringmatch(pattern,"dir",0)) {
         char buf[1024];
 
     if (stringmatch(pattern,"dir",0)) {
         char buf[1024];
 


@@ -637,27 +823,6 @@ void configGetCommand(redisClient *c) {
         addReplyBulkCString(c,buf);
         matches++;
     }
         addReplyBulkCString(c,buf);
         matches++;
     }

-    if (stringmatch(pattern,"dbfilename",0)) {
-        addReplyBulkCString(c,"dbfilename");
-        addReplyBulkCString(c,server.rdb_filename);
-        matches++;
-    }
-    if (stringmatch(pattern,"requirepass",0)) {
-        addReplyBulkCString(c,"requirepass");
-        addReplyBulkCString(c,server.requirepass);
-        matches++;
-    }
-    if (stringmatch(pattern,"masterauth",0)) {
-        addReplyBulkCString(c,"masterauth");
-        addReplyBulkCString(c,server.masterauth);
-        matches++;
-    }
-    if (stringmatch(pattern,"maxmemory",0)) {
-        ll2string(buf,sizeof(buf),server.maxmemory);
-        addReplyBulkCString(c,"maxmemory");
-        addReplyBulkCString(c,buf);
-        matches++;
-    }

     if (stringmatch(pattern,"maxmemory-policy",0)) {
         char *s;
 
     if (stringmatch(pattern,"maxmemory-policy",0)) {
         char *s;
 


@@ -674,28 +839,6 @@ void configGetCommand(redisClient *c) {
         addReplyBulkCString(c,s);
         matches++;
     }
         addReplyBulkCString(c,s);
         matches++;
     }

-    if (stringmatch(pattern,"maxmemory-samples",0)) {
-        ll2string(buf,sizeof(buf),server.maxmemory_samples);
-        addReplyBulkCString(c,"maxmemory-samples");
-        addReplyBulkCString(c,buf);
-        matches++;
-    }
-    if (stringmatch(pattern,"timeout",0)) {
-        ll2string(buf,sizeof(buf),server.maxidletime);
-        addReplyBulkCString(c,"timeout");
-        addReplyBulkCString(c,buf);
-        matches++;
-    }
-    if (stringmatch(pattern,"appendonly",0)) {
-        addReplyBulkCString(c,"appendonly");
-        addReplyBulkCString(c,server.aof_state == REDIS_AOF_OFF ? "no" : "yes");
-        matches++;
-    }
-    if (stringmatch(pattern,"no-appendfsync-on-rewrite",0)) {
-        addReplyBulkCString(c,"no-appendfsync-on-rewrite");
-        addReplyBulkCString(c,server.aof_no_fsync_on_rewrite ? "yes" : "no");
-        matches++;
-    }

     if (stringmatch(pattern,"appendfsync",0)) {
         char *policy;
 
     if (stringmatch(pattern,"appendfsync",0)) {
         char *policy;
 


@@ -725,71 +868,6 @@ void configGetCommand(redisClient *c) {
         sdsfree(buf);
         matches++;
     }
         sdsfree(buf);
         matches++;
     }

-    if (stringmatch(pattern,"auto-aof-rewrite-percentage",0)) {
-        addReplyBulkCString(c,"auto-aof-rewrite-percentage");
-        addReplyBulkLongLong(c,server.aof_rewrite_perc);
-        matches++;
-    }
-    if (stringmatch(pattern,"auto-aof-rewrite-min-size",0)) {
-        addReplyBulkCString(c,"auto-aof-rewrite-min-size");
-        addReplyBulkLongLong(c,server.aof_rewrite_min_size);
-        matches++;
-    }
-    if (stringmatch(pattern,"slave-serve-stale-data",0)) {
-        addReplyBulkCString(c,"slave-serve-stale-data");
-        addReplyBulkCString(c,server.repl_serve_stale_data ? "yes" : "no");
-        matches++;
-    }
-    if (stringmatch(pattern,"hash-max-zipmap-entries",0)) {
-        addReplyBulkCString(c,"hash-max-zipmap-entries");
-        addReplyBulkLongLong(c,server.hash_max_zipmap_entries);
-        matches++;
-    }
-    if (stringmatch(pattern,"hash-max-zipmap-value",0)) {
-        addReplyBulkCString(c,"hash-max-zipmap-value");
-        addReplyBulkLongLong(c,server.hash_max_zipmap_value);
-        matches++;
-    }
-    if (stringmatch(pattern,"list-max-ziplist-entries",0)) {
-        addReplyBulkCString(c,"list-max-ziplist-entries");
-        addReplyBulkLongLong(c,server.list_max_ziplist_entries);
-        matches++;
-    }
-    if (stringmatch(pattern,"list-max-ziplist-value",0)) {
-        addReplyBulkCString(c,"list-max-ziplist-value");
-        addReplyBulkLongLong(c,server.list_max_ziplist_value);
-        matches++;
-    }
-    if (stringmatch(pattern,"set-max-intset-entries",0)) {
-        addReplyBulkCString(c,"set-max-intset-entries");
-        addReplyBulkLongLong(c,server.set_max_intset_entries);
-        matches++;
-    }
-    if (stringmatch(pattern,"zset-max-ziplist-entries",0)) {
-        addReplyBulkCString(c,"zset-max-ziplist-entries");
-        addReplyBulkLongLong(c,server.zset_max_ziplist_entries);
-        matches++;
-    }
-    if (stringmatch(pattern,"zset-max-ziplist-value",0)) {
-        addReplyBulkCString(c,"zset-max-ziplist-value");
-        addReplyBulkLongLong(c,server.zset_max_ziplist_value);
-        matches++;
-    }
-    if (stringmatch(pattern,"lua-time-limit",0)) {
-        addReplyBulkCString(c,"lua-time-limit");
-        addReplyBulkLongLong(c,server.lua_time_limit);
-        matches++;
-    }
-    if (stringmatch(pattern,"slowlog-log-slower-than",0)) {
-        addReplyBulkCString(c,"slowlog-log-slower-than");
-        addReplyBulkLongLong(c,server.slowlog_log_slower_than);
-        matches++;
-    }
-    if (stringmatch(pattern,"slowlog-max-len",0)) {
-        addReplyBulkCString(c,"slowlog-max-len");
-        addReplyBulkLongLong(c,server.slowlog_max_len);
-        matches++;
-    }

     if (stringmatch(pattern,"loglevel",0)) {
         char *s;
 
     if (stringmatch(pattern,"loglevel",0)) {
         char *s;
 


@@ -822,6 +900,25 @@ void configGetCommand(redisClient *c) {
         sdsfree(buf);
         matches++;
     }
         sdsfree(buf);
         matches++;
     }

+    if (stringmatch(pattern,"unixsocketperm",0)) {
+        char buf[32];
+        snprintf(buf,sizeof(buf),"%o",server.unixsocketperm);
+        addReplyBulkCString(c,"unixsocketperm");
+        addReplyBulkCString(c,buf);
+        matches++;
+    }
+    if (stringmatch(pattern,"slaveof",0)) {
+        char buf[256];
+
+        addReplyBulkCString(c,"slaveof");
+        if (server.masterhost)
+            snprintf(buf,sizeof(buf),"%s %d",
+                server.masterhost, server.masterport);
+        else
+            buf[0] = '\0';
+        addReplyBulkCString(c,buf);
+        matches++;
+    }

     setDeferredMultiBulkLength(c,replylen,matches*2);
 }
 
     setDeferredMultiBulkLength(c,replylen,matches*2);
 }
 


@@ -839,6 +936,9 @@ void configCommand(redisClient *c) {
         server.stat_numcommands = 0;
         server.stat_numconnections = 0;
         server.stat_expiredkeys = 0;
         server.stat_numcommands = 0;
         server.stat_numconnections = 0;
         server.stat_expiredkeys = 0;

+        server.stat_rejected_conn = 0;
+        server.stat_fork_time = 0;
+        server.aof_delayed_fsync = 0;

         resetCommandTableStats();
         addReply(c,shared.ok);
     } else {
         resetCommandTableStats();
         addReply(c,shared.ok);
     } else {