]> git.meshlink.io Git - catta/blobdiff - avahi-daemon/main.c
daemon: we better stay away from SIGQUIT since it is supposed to cause a core dump
[catta] / avahi-daemon / main.c
index 76b03d0a599038947d0e2a87a2bd1a8c1bf3ce86..d46f40a8dddf990f6f5f07766e7e3d01b8f1be08 100644 (file)
@@ -1,18 +1,16 @@
-/* $Id$ */
-
 /***
   This file is part of avahi.
+
   avahi is free software; you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.
+
   avahi is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
   Public License for more details.
+
   You should have received a copy of the GNU Lesser General Public
   License along with avahi; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 #include <grp.h>
 #include <pwd.h>
 #include <sys/stat.h>
+#include <sys/ioctl.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <time.h>
 #include <stdlib.h>
 #include <sys/time.h>
 #include <sys/resource.h>
+#include <sys/socket.h>
+
+#ifdef HAVE_INOTIFY
+#include <sys/inotify.h>
+#endif
+
+#ifdef HAVE_KQUEUE
+#include <sys/types.h>
+#include <sys/event.h>
+#include <unistd.h>
+#endif
 
 #include <libdaemon/dfork.h>
 #include <libdaemon/dsignal.h>
 #include <avahi-common/simple-watch.h>
 #include <avahi-common/error.h>
 #include <avahi-common/alternative.h>
+#include <avahi-common/domain.h>
+
 #include <avahi-core/core.h>
+#include <avahi-core/publish.h>
+#include <avahi-core/dns-srv-rr.h>
 #include <avahi-core/log.h>
 
+#ifdef ENABLE_CHROOT
+#include "chroot.h"
+#include "caps.h"
+#endif
+
+#include "setproctitle.h"
 #include "main.h"
 #include "simple-protocol.h"
 #include "static-services.h"
+#include "static-hosts.h"
 #include "ini-file-parser.h"
+#include "sd-daemon.h"
 
 #ifdef HAVE_DBUS
 #include "dbus-protocol.h"
 #endif
 
 AvahiServer *avahi_server = NULL;
+AvahiSimplePoll *simple_poll_api = NULL;
+static char *argv0 = NULL;
+int nss_support = 0;
 
 typedef enum {
     DAEMON_RUN,
@@ -78,11 +103,23 @@ typedef struct {
     int daemonize;
     int use_syslog;
     char *config_file;
+#ifdef HAVE_DBUS
     int enable_dbus;
+    int fail_on_missing_dbus;
+    unsigned n_clients_max;
+    unsigned n_objects_per_client_max;
+    unsigned n_entries_per_entry_group_max;
+#endif
     int drop_root;
+    int set_rlimits;
+#ifdef ENABLE_CHROOT
+    int use_chroot;
+#endif
+    int modify_proc_title;
+
+    int disable_user_service_publishing;
     int publish_resolv_conf;
     char ** publish_dns_servers;
-    int no_rlimits;
     int debug;
 
     int rlimit_as_set, rlimit_core_set, rlimit_data_set, rlimit_fsize_set, rlimit_nofile_set, rlimit_stack_set;
@@ -95,43 +132,50 @@ typedef struct {
 } DaemonConfig;
 
 #define RESOLV_CONF "/etc/resolv.conf"
+#define BROWSE_DOMAINS_MAX 16
 
 static AvahiSEntryGroup *dns_servers_entry_group = NULL;
 static AvahiSEntryGroup *resolv_conf_entry_group = NULL;
 
-static char **resolv_conf = NULL;
+static char **resolv_conf_name_servers = NULL;
+static char **resolv_conf_search_domains = NULL;
 
 static DaemonConfig config;
 
-#define MAX_NAME_SERVERS 10
-
 static int has_prefix(const char *s, const char *prefix) {
     size_t l;
 
     l = strlen(prefix);
-    
+
     return strlen(s) >= l && strncmp(s, prefix, l) == 0;
 }
 
-static int load_resolv_conf(const DaemonConfig *c) {
+static int load_resolv_conf(void) {
     int ret = -1;
     FILE *f;
-    int i = 0;
-    
-    avahi_strfreev(resolv_conf);
-    resolv_conf = NULL;
+    int i = 0, j = 0;
 
-    if (!c->publish_resolv_conf)
-        return 0;
+    avahi_strfreev(resolv_conf_name_servers);
+    resolv_conf_name_servers = NULL;
 
-    if (!(f = fopen(RESOLV_CONF, "r"))) {
-        avahi_log_warn("Failed to open "RESOLV_CONF".");
+    avahi_strfreev(resolv_conf_search_domains);
+    resolv_conf_search_domains = NULL;
+
+#ifdef ENABLE_CHROOT
+    f = avahi_chroot_helper_get_file(RESOLV_CONF);
+#else
+    f = fopen(RESOLV_CONF, "r");
+#endif
+
+    if (!f) {
+        avahi_log_warn("Failed to open "RESOLV_CONF": %s", strerror(errno));
         goto finish;
     }
 
-    resolv_conf = avahi_new0(char*, MAX_NAME_SERVERS+1);
+    resolv_conf_name_servers = avahi_new0(char*, AVAHI_WIDE_AREA_SERVERS_MAX+1);
+    resolv_conf_search_domains = avahi_new0(char*, BROWSE_DOMAINS_MAX+1);
 
-    while (!feof(f) && i < MAX_NAME_SERVERS) {
+    while (!feof(f)) {
         char ln[128];
         char *p;
 
@@ -141,11 +185,32 @@ static int load_resolv_conf(const DaemonConfig *c) {
         ln[strcspn(ln, "\r\n#")] = 0;
         p = ln + strspn(ln, "\t ");
 
-        if (has_prefix(p, "nameserver")) {
+        if ((has_prefix(p, "nameserver ") || has_prefix(p, "nameserver\t")) && i < AVAHI_WIDE_AREA_SERVERS_MAX) {
             p += 10;
             p += strspn(p, "\t ");
             p[strcspn(p, "\t ")] = 0;
-            resolv_conf[i++] = avahi_strdup(p);
+            resolv_conf_name_servers[i++] = avahi_strdup(p);
+        }
+
+        if ((has_prefix(p, "search ") || has_prefix(p, "search\t") ||
+             has_prefix(p, "domain ") || has_prefix(p, "domain\t"))) {
+
+            p += 6;
+
+            while (j < BROWSE_DOMAINS_MAX) {
+                size_t k;
+
+                p += strspn(p, "\t ");
+                k = strcspn(p, "\t ");
+
+                if (k > 0) {
+                    resolv_conf_search_domains[j++] = avahi_strndup(p, k);
+                    p += k;
+                }
+
+                if (!*p)
+                    break;
+            }
         }
     }
 
@@ -154,10 +219,13 @@ static int load_resolv_conf(const DaemonConfig *c) {
 finish:
 
     if (ret != 0) {
-        avahi_strfreev(resolv_conf);
-        resolv_conf = NULL;
+        avahi_strfreev(resolv_conf_name_servers);
+        resolv_conf_name_servers = NULL;
+
+        avahi_strfreev(resolv_conf_search_domains);
+        resolv_conf_search_domains = NULL;
     }
-        
+
     if (f)
         fclose(f);
 
@@ -170,18 +238,18 @@ static AvahiSEntryGroup* add_dns_servers(AvahiServer *s, AvahiSEntryGroup* g, ch
     assert(s);
     assert(l);
 
-    if (!g) 
+    if (!g)
         g = avahi_s_entry_group_new(s, NULL, NULL);
 
     assert(avahi_s_entry_group_is_empty(g));
 
     for (p = l; *p; p++) {
         AvahiAddress a;
-        
-        if (!avahi_address_parse(*p, AF_UNSPEC, &a))
+
+        if (!avahi_address_parse(*p, AVAHI_PROTO_UNSPEC, &a))
             avahi_log_warn("Failed to parse address '%s', ignoring.", *p);
         else
-            if (avahi_server_add_dns_server_address(s, g, -1, AF_UNSPEC, NULL, AVAHI_DNS_SERVER_RESOLVE, &a, 53) < 0) {
+            if (avahi_server_add_dns_server_address(s, g, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, NULL, AVAHI_DNS_SERVER_RESOLVE, &a, 53) < 0) {
                 avahi_s_entry_group_free(g);
                 avahi_log_error("Failed to add DNS server address: %s", avahi_strerror(avahi_server_errno(s)));
                 return NULL;
@@ -197,56 +265,157 @@ static void remove_dns_server_entry_groups(void) {
 
     if (resolv_conf_entry_group)
         avahi_s_entry_group_reset(resolv_conf_entry_group);
-    
-    if (dns_servers_entry_group) 
+
+    if (dns_servers_entry_group)
         avahi_s_entry_group_reset(dns_servers_entry_group);
 }
 
+static void update_wide_area_servers(void) {
+    AvahiAddress a[AVAHI_WIDE_AREA_SERVERS_MAX];
+    unsigned n = 0;
+    char **p;
+
+    if (!resolv_conf_name_servers) {
+        avahi_server_set_wide_area_servers(avahi_server, NULL, 0);
+        return;
+    }
+
+    for (p = resolv_conf_name_servers; *p && n < AVAHI_WIDE_AREA_SERVERS_MAX; p++) {
+        if (!avahi_address_parse(*p, AVAHI_PROTO_UNSPEC, &a[n]))
+            avahi_log_warn("Failed to parse address '%s', ignoring.", *p);
+        else
+            n++;
+    }
+
+    avahi_server_set_wide_area_servers(avahi_server, a, n);
+}
+
+static AvahiStringList *filter_duplicate_domains(AvahiStringList *l) {
+    AvahiStringList *e, *n, *p;
+
+    if (!l)
+        return l;
+
+    for (p = l, e = l->next; e; e = n) {
+        n = e->next;
+
+        if (avahi_domain_equal((char*) e->text, (char*) l->text)) {
+            p->next = e->next;
+            avahi_free(e);
+        } else
+            p = e;
+    }
+
+    l->next = filter_duplicate_domains(l->next);
+    return l;
+}
+
+static void update_browse_domains(void) {
+    AvahiStringList *l;
+    int n;
+    char **p;
+
+    if (!resolv_conf_search_domains) {
+        avahi_server_set_browse_domains(avahi_server, NULL);
+        return;
+    }
+
+    l = avahi_string_list_copy(config.server_config.browse_domains);
+
+    for (p = resolv_conf_search_domains, n = 0; *p && n < BROWSE_DOMAINS_MAX; p++, n++) {
+        if (!avahi_is_valid_domain_name(*p))
+            avahi_log_warn("'%s' is no valid domain name, ignoring.", *p);
+        else
+            l = avahi_string_list_add(l, *p);
+    }
+
+    l = filter_duplicate_domains(l);
+
+    avahi_server_set_browse_domains(avahi_server, l);
+    avahi_string_list_free(l);
+}
+
 static void server_callback(AvahiServer *s, AvahiServerState state, void *userdata) {
     DaemonConfig *c = userdata;
-    
+
     assert(s);
     assert(c);
 
-    /** This function is possibly called before the global variable
+    /* This function is possibly called before the global variable
      * avahi_server has been set, therefore we do it explicitly */
 
     avahi_server = s;
-    
+
 #ifdef HAVE_DBUS
-    if (c->enable_dbus)
+    if (c->enable_dbus && state != AVAHI_SERVER_INVALID && state != AVAHI_SERVER_FAILURE)
         dbus_protocol_server_state_changed(state);
 #endif
 
-    if (state == AVAHI_SERVER_RUNNING) {
-        avahi_log_info("Server startup complete.  Host name is <%s>", avahi_server_get_host_name_fqdn(s));
-        static_service_add_to_server();
+    switch (state) {
+        case AVAHI_SERVER_RUNNING:
+            avahi_log_info("Server startup complete. Host name is %s. Local service cookie is %u.", avahi_server_get_host_name_fqdn(s), avahi_server_get_local_service_cookie(s));
+            sd_notifyf(0, "STATUS=Server startup complete. Host name is %s. Local service cookie is %u.", avahi_server_get_host_name_fqdn(s), avahi_server_get_local_service_cookie(s));
+            avahi_set_proc_title(argv0, "%s: running [%s]", argv0, avahi_server_get_host_name_fqdn(s));
 
-        remove_dns_server_entry_groups();
+            static_service_add_to_server();
+            static_hosts_add_to_server();
+
+            remove_dns_server_entry_groups();
+
+            if (c->publish_resolv_conf && resolv_conf_name_servers && resolv_conf_name_servers[0])
+                resolv_conf_entry_group = add_dns_servers(s, resolv_conf_entry_group, resolv_conf_name_servers);
+
+            if (c->publish_dns_servers && c->publish_dns_servers[0])
+                dns_servers_entry_group = add_dns_servers(s, dns_servers_entry_group, c->publish_dns_servers);
+
+            simple_protocol_restart_queries();
+            break;
 
-        if (resolv_conf && resolv_conf[0])
-            resolv_conf_entry_group = add_dns_servers(s, resolv_conf_entry_group, resolv_conf);
+        case AVAHI_SERVER_COLLISION: {
+            char *n;
 
-        if (c->publish_dns_servers && c->publish_dns_servers[0])
-            dns_servers_entry_group = add_dns_servers(s, dns_servers_entry_group, c->publish_dns_servers);
+            static_service_remove_from_server();
+            static_hosts_remove_from_server();
+            remove_dns_server_entry_groups();
 
-        simple_protocol_restart_queries();
-        
-    } else if (state == AVAHI_SERVER_COLLISION) {
-        char *n;
+            n = avahi_alternative_host_name(avahi_server_get_host_name(s));
 
-        static_service_remove_from_server();
+            avahi_log_warn("Host name conflict, retrying with %s", n);
+            sd_notifyf(0, "STATUS=Host name conflict, retrying with %s", n);
+            avahi_set_proc_title(argv0, "%s: collision [%s]", argv0, n);
 
-        remove_dns_server_entry_groups();
+            avahi_server_set_host_name(s, n);
+            avahi_free(n);
+
+            break;
+        }
+
+        case AVAHI_SERVER_FAILURE:
+
+            avahi_log_error("Server error: %s", avahi_strerror(avahi_server_errno(s)));
+            sd_notifyf(0, "STATUS=Server error: %s", avahi_strerror(avahi_server_errno(s)));
+
+            avahi_simple_poll_quit(simple_poll_api);
+            break;
+
+        case AVAHI_SERVER_REGISTERING:
+
+            sd_notifyf(0, "STATUS=Registering host name %s", avahi_server_get_host_name_fqdn(s));
+            avahi_set_proc_title(argv0, "%s: registering [%s]", argv0, avahi_server_get_host_name_fqdn(s));
+
+            static_service_remove_from_server();
+            static_hosts_remove_from_server();
+            remove_dns_server_entry_groups();
+
+            break;
+
+        case AVAHI_SERVER_INVALID:
+            break;
 
-        n = avahi_alternative_host_name(avahi_server_get_host_name(s));
-        avahi_log_warn("Host name conflict, retrying with <%s>", n);
-        avahi_server_set_host_name(s, n);
-        avahi_free(n);
     }
 }
 
-static void help(FILE *f, const char *argv0) {
+static void help(FILE *f) {
     fprintf(f,
             "%s [options]\n"
             "    -h --help          Show this help\n"
@@ -260,6 +429,10 @@ static void help(FILE *f, const char *argv0) {
             "                       "AVAHI_CONFIG_FILE"\n"
             "       --no-rlimits    Don't enforce resource limits\n"
             "       --no-drop-root  Don't drop privileges\n"
+#ifdef ENABLE_CHROOT
+            "       --no-chroot     Don't chroot()\n"
+#endif
+            "       --no-proc-title Don't modify process title\n"
             "       --debug         Increase verbosity\n",
             argv0);
 }
@@ -271,27 +444,34 @@ static int parse_command_line(DaemonConfig *c, int argc, char *argv[]) {
     enum {
         OPTION_NO_RLIMITS = 256,
         OPTION_NO_DROP_ROOT,
+#ifdef ENABLE_CHROOT
+        OPTION_NO_CHROOT,
+#endif
+        OPTION_NO_PROC_TITLE,
         OPTION_DEBUG
     };
-    
+
     static const struct option long_options[] = {
-        { "help",         no_argument,       NULL, 'h' },
-        { "daemonize",    no_argument,       NULL, 'D' },
-        { "kill",         no_argument,       NULL, 'k' },
-        { "version",      no_argument,       NULL, 'V' },
-        { "file",         required_argument, NULL, 'f' },
-        { "reload",       no_argument,       NULL, 'r' },
-        { "check",        no_argument,       NULL, 'c' },
-        { "syslog",       no_argument,       NULL, 's' },
-        { "no-rlimits",   no_argument,       NULL, OPTION_NO_RLIMITS },
-        { "no-drop-root", no_argument,       NULL, OPTION_NO_DROP_ROOT },
-        { "debug",        no_argument,       NULL, OPTION_DEBUG },
+        { "help",           no_argument,       NULL, 'h' },
+        { "daemonize",      no_argument,       NULL, 'D' },
+        { "kill",           no_argument,       NULL, 'k' },
+        { "version",        no_argument,       NULL, 'V' },
+        { "file",           required_argument, NULL, 'f' },
+        { "reload",         no_argument,       NULL, 'r' },
+        { "check",          no_argument,       NULL, 'c' },
+        { "syslog",         no_argument,       NULL, 's' },
+        { "no-rlimits",     no_argument,       NULL, OPTION_NO_RLIMITS },
+        { "no-drop-root",   no_argument,       NULL, OPTION_NO_DROP_ROOT },
+#ifdef ENABLE_CHROOT
+        { "no-chroot",      no_argument,       NULL, OPTION_NO_CHROOT },
+#endif
+        { "no-proc-title",  no_argument,       NULL, OPTION_NO_PROC_TITLE },
+        { "debug",          no_argument,       NULL, OPTION_DEBUG },
         { NULL, 0, NULL, 0 }
     };
 
     assert(c);
 
-    opterr = 0;
     while ((o = getopt_long(argc, argv, "hDkVf:rcs", long_options, NULL)) >= 0) {
 
         switch(o) {
@@ -321,16 +501,23 @@ static int parse_command_line(DaemonConfig *c, int argc, char *argv[]) {
                 c->command = DAEMON_CHECK;
                 break;
             case OPTION_NO_RLIMITS:
-                c->no_rlimits = 1;
+                c->set_rlimits = 0;
                 break;
             case OPTION_NO_DROP_ROOT:
                 c->drop_root = 0;
                 break;
+#ifdef ENABLE_CHROOT
+            case OPTION_NO_CHROOT:
+                c->use_chroot = 0;
+                break;
+#endif
+            case OPTION_NO_PROC_TITLE:
+                c->modify_proc_title = 0;
+                break;
             case OPTION_DEBUG:
                 c->debug = 1;
                 break;
             default:
-                fprintf(stderr, "Invalid command line argument: %c\n", o);
                 return -1;
         }
     }
@@ -339,14 +526,54 @@ static int parse_command_line(DaemonConfig *c, int argc, char *argv[]) {
         fprintf(stderr, "Too many arguments\n");
         return -1;
     }
-        
+
     return 0;
 }
 
 static int is_yes(const char *s) {
     assert(s);
-    
-    return *s == 'y' || *s == 'Y';
+
+    return *s == 'y' || *s == 'Y' || *s == '1' || *s == 't' || *s == 'T';
+}
+
+static int parse_unsigned(const char *s, unsigned *u) {
+    char *e = NULL;
+    unsigned long ul;
+    unsigned k;
+
+    errno = 0;
+    ul = strtoul(s, &e, 0);
+
+    if (!e || *e || errno != 0)
+        return -1;
+
+    k = (unsigned) ul;
+
+    if ((unsigned long) k != ul)
+        return -1;
+
+    *u = k;
+    return 0;
+}
+
+static int parse_usec(const char *s, AvahiUsec *u) {
+    char *e = NULL;
+    unsigned long long ull;
+    AvahiUsec k;
+
+    errno = 0;
+    ull = strtoull(s, &e, 0);
+
+    if (!e || *e || errno != 0)
+        return -1;
+
+    k = (AvahiUsec) ull;
+
+    if ((unsigned long long) k != ull)
+        return -1;
+
+    *u = k;
+    return 0;
 }
 
 static int load_config_file(DaemonConfig *c) {
@@ -358,9 +585,9 @@ static int load_config_file(DaemonConfig *c) {
 
     if (!(f = avahi_ini_file_load(c->config_file ? c->config_file : AVAHI_CONFIG_FILE)))
         goto finish;
-    
+
     for (g = f->groups; g; g = g->groups_next) {
-        
+
         if (strcasecmp(g->name, "server") == 0) {
             AvahiIniFilePair *p;
 
@@ -372,29 +599,143 @@ static int load_config_file(DaemonConfig *c) {
                 } else if (strcasecmp(p->key, "domain-name") == 0) {
                     avahi_free(c->server_config.domain_name);
                     c->server_config.domain_name = avahi_strdup(p->value);
+                } else if (strcasecmp(p->key, "browse-domains") == 0) {
+                    char **e, **t;
+
+                    e = avahi_split_csv(p->value);
+
+                    for (t = e; *t; t++) {
+                        char cleaned[AVAHI_DOMAIN_NAME_MAX];
+
+                        if (!avahi_normalize_name(*t, cleaned, sizeof(cleaned))) {
+                            avahi_log_error("Invalid domain name \"%s\" for key \"%s\" in group \"%s\"\n", *t, p->key, g->name);
+                            avahi_strfreev(e);
+                            goto finish;
+                        }
+
+                        c->server_config.browse_domains = avahi_string_list_add(c->server_config.browse_domains, cleaned);
+                    }
+
+                    avahi_strfreev(e);
+
+                    c->server_config.browse_domains = filter_duplicate_domains(c->server_config.browse_domains);
                 } else if (strcasecmp(p->key, "use-ipv4") == 0)
                     c->server_config.use_ipv4 = is_yes(p->value);
                 else if (strcasecmp(p->key, "use-ipv6") == 0)
                     c->server_config.use_ipv6 = is_yes(p->value);
                 else if (strcasecmp(p->key, "check-response-ttl") == 0)
                     c->server_config.check_response_ttl = is_yes(p->value);
+                else if (strcasecmp(p->key, "allow-point-to-point") == 0)
+                    c->server_config.allow_point_to_point = is_yes(p->value);
                 else if (strcasecmp(p->key, "use-iff-running") == 0)
                     c->server_config.use_iff_running = is_yes(p->value);
-                else if (strcasecmp(p->key, "enable-dbus") == 0)
-                    c->enable_dbus = is_yes(p->value);
-                else if (strcasecmp(p->key, "drop-root") == 0)
-                    c->drop_root = is_yes(p->value);
-                else {
+                else if (strcasecmp(p->key, "disallow-other-stacks") == 0)
+                    c->server_config.disallow_other_stacks = is_yes(p->value);
+#ifdef HAVE_DBUS
+                else if (strcasecmp(p->key, "enable-dbus") == 0) {
+
+                    if (*(p->value) == 'w' || *(p->value) == 'W') {
+                        c->fail_on_missing_dbus = 0;
+                        c->enable_dbus = 1;
+                    } else if (*(p->value) == 'y' || *(p->value) == 'Y') {
+                        c->fail_on_missing_dbus = 1;
+                        c->enable_dbus = 1;
+                    } else {
+                        c->enable_dbus = 0;
+                    }
+                }
+#endif
+                else if (strcasecmp(p->key, "allow-interfaces") == 0) {
+                    char **e, **t;
+
+                    avahi_string_list_free(c->server_config.allow_interfaces);
+                    c->server_config.allow_interfaces = NULL;
+                    e = avahi_split_csv(p->value);
+
+                    for (t = e; *t; t++)
+                        c->server_config.allow_interfaces = avahi_string_list_add(c->server_config.allow_interfaces, *t);
+
+                    avahi_strfreev(e);
+                } else if (strcasecmp(p->key, "deny-interfaces") == 0) {
+                    char **e, **t;
+
+                    avahi_string_list_free(c->server_config.deny_interfaces);
+                    c->server_config.deny_interfaces = NULL;
+                    e = avahi_split_csv(p->value);
+
+                    for (t = e; *t; t++)
+                        c->server_config.deny_interfaces = avahi_string_list_add(c->server_config.deny_interfaces, *t);
+
+                    avahi_strfreev(e);
+                } else if (strcasecmp(p->key, "ratelimit-interval-usec") == 0) {
+                    AvahiUsec k;
+
+                    if (parse_usec(p->value, &k) < 0) {
+                        avahi_log_error("Invalid ratelimit-interval-usec setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->server_config.ratelimit_interval = k;
+
+                } else if (strcasecmp(p->key, "ratelimit-burst") == 0) {
+                    unsigned k;
+
+                    if (parse_unsigned(p->value, &k) < 0) {
+                        avahi_log_error("Invalid ratelimit-burst setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->server_config.ratelimit_burst = k;
+
+                } else if (strcasecmp(p->key, "cache-entries-max") == 0) {
+                    unsigned k;
+
+                    if (parse_unsigned(p->value, &k) < 0) {
+                        avahi_log_error("Invalid cache-entries-max setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->server_config.n_cache_entries_max = k;
+#ifdef HAVE_DBUS
+                } else if (strcasecmp(p->key, "clients-max") == 0) {
+                    unsigned k;
+
+                    if (parse_unsigned(p->value, &k) < 0) {
+                        avahi_log_error("Invalid clients-max setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->n_clients_max = k;
+                } else if (strcasecmp(p->key, "objects-per-client-max") == 0) {
+                    unsigned k;
+
+                    if (parse_unsigned(p->value, &k) < 0) {
+                        avahi_log_error("Invalid objects-per-client-max setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->n_objects_per_client_max = k;
+                } else if (strcasecmp(p->key, "entries-per-entry-group-max") == 0) {
+                    unsigned k;
+
+                    if (parse_unsigned(p->value, &k) < 0) {
+                        avahi_log_error("Invalid entries-per-entry-group-max setting %s", p->value);
+                        goto finish;
+                    }
+
+                    c->n_entries_per_entry_group_max = k;
+#endif
+                } else {
                     avahi_log_error("Invalid configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
                     goto finish;
                 }
             }
-            
+
         } else if (strcasecmp(g->name, "publish") == 0) {
             AvahiIniFilePair *p;
 
             for (p = g->pairs; p; p = p->pairs_next) {
-                
+
                 if (strcasecmp(p->key, "publish-addresses") == 0)
                     c->server_config.publish_addresses = is_yes(p->value);
                 else if (strcasecmp(p->key, "publish-hinfo") == 0)
@@ -405,10 +746,33 @@ static int load_config_file(DaemonConfig *c) {
                     c->server_config.publish_domain = is_yes(p->value);
                 else if (strcasecmp(p->key, "publish-resolv-conf-dns-servers") == 0)
                     c->publish_resolv_conf = is_yes(p->value);
+                else if (strcasecmp(p->key, "disable-publishing") == 0)
+                    c->server_config.disable_publishing = is_yes(p->value);
+                else if (strcasecmp(p->key, "disable-user-service-publishing") == 0)
+                    c->disable_user_service_publishing = is_yes(p->value);
+                else if (strcasecmp(p->key, "add-service-cookie") == 0)
+                    c->server_config.add_service_cookie = is_yes(p->value);
                 else if (strcasecmp(p->key, "publish-dns-servers") == 0) {
                     avahi_strfreev(c->publish_dns_servers);
                     c->publish_dns_servers = avahi_split_csv(p->value);
-                } else {
+                } else if (strcasecmp(p->key, "publish-a-on-ipv6") == 0)
+                    c->server_config.publish_a_on_ipv6 = is_yes(p->value);
+                else if (strcasecmp(p->key, "publish-aaaa-on-ipv4") == 0)
+                    c->server_config.publish_aaaa_on_ipv4 = is_yes(p->value);
+                else {
+                    avahi_log_error("Invalid configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
+                    goto finish;
+                }
+            }
+
+        } else if (strcasecmp(g->name, "wide-area") == 0) {
+            AvahiIniFilePair *p;
+
+            for (p = g->pairs; p; p = p->pairs_next) {
+
+                if (strcasecmp(p->key, "enable-wide-area") == 0)
+                    c->server_config.enable_wide_area = is_yes(p->value);
+                else {
                     avahi_log_error("Invalid configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
                     goto finish;
                 }
@@ -418,7 +782,7 @@ static int load_config_file(DaemonConfig *c) {
             AvahiIniFilePair *p;
 
             for (p = g->pairs; p; p = p->pairs_next) {
-                
+
                 if (strcasecmp(p->key, "enable-reflector") == 0)
                     c->server_config.enable_reflector = is_yes(p->value);
                 else if (strcasecmp(p->key, "reflect-ipv") == 0)
@@ -428,12 +792,12 @@ static int load_config_file(DaemonConfig *c) {
                     goto finish;
                 }
             }
-            
+
         } else if (strcasecmp(g->name, "rlimits") == 0) {
             AvahiIniFilePair *p;
 
             for (p = g->pairs; p; p = p->pairs_next) {
-                
+
                 if (strcasecmp(p->key, "rlimit-as") == 0) {
                     c->rlimit_as_set = 1;
                     c->rlimit_as = atoi(p->value);
@@ -452,10 +816,12 @@ static int load_config_file(DaemonConfig *c) {
                 } else if (strcasecmp(p->key, "rlimit-stack") == 0) {
                     c->rlimit_stack_set = 1;
                     c->rlimit_stack = atoi(p->value);
-#ifdef RLIMIT_NPROC
                 } else if (strcasecmp(p->key, "rlimit-nproc") == 0) {
+#ifdef RLIMIT_NPROC
                     c->rlimit_nproc_set = 1;
                     c->rlimit_nproc = atoi(p->value);
+#else
+                    avahi_log_error("Ignoring configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
 #endif
                 } else {
                     avahi_log_error("Invalid configuration key \"%s\" in group \"%s\"\n", p->key, g->name);
@@ -463,7 +829,7 @@ static int load_config_file(DaemonConfig *c) {
                 }
 
             }
-            
+
         } else {
             avahi_log_error("Invalid configuration file group \"%s\".\n", g->name);
             goto finish;
@@ -476,7 +842,7 @@ finish:
 
     if (f)
         avahi_ini_file_free(f);
-    
+
     return r;
 }
 
@@ -489,7 +855,7 @@ static void log_function(AvahiLogLevel level, const char *txt) {
         LOG_INFO,
         LOG_DEBUG
     };
-    
+
     assert(level < AVAHI_LOG_LEVEL_MAX);
     assert(txt);
 
@@ -499,15 +865,174 @@ static void log_function(AvahiLogLevel level, const char *txt) {
     daemon_log(log_level_map[level], "%s", txt);
 }
 
-static void dump(const char *text, void* userdata) {
+static void dump(const char *text, AVAHI_GCC_UNUSED void* userdata) {
     avahi_log_info("%s", text);
 }
 
-static void signal_callback(AvahiWatch *watch, int fd, AvahiWatchEvent event, void *userdata) {
+#ifdef HAVE_INOTIFY
+
+static int inotify_fd = -1;
+
+static void add_inotify_watches(void) {
+    int c = 0;
+    /* We ignore the return values, because one or more of these files
+     * might not exist and we're OK with that. In addition we never
+     * want to remove these watches, hence we keep their ids? */
+
+#ifdef ENABLE_CHROOT
+    c = config.use_chroot;
+#endif
+
+    inotify_add_watch(inotify_fd, c ? "/services" : AVAHI_SERVICE_DIR, IN_CLOSE_WRITE|IN_DELETE|IN_DELETE_SELF|IN_MOVED_FROM|IN_MOVED_TO|IN_MOVE_SELF
+#ifdef IN_ONLYDIR
+                      |IN_ONLYDIR
+#endif
+    );
+    inotify_add_watch(inotify_fd, c ? "/" : AVAHI_CONFIG_DIR, IN_CLOSE_WRITE|IN_DELETE|IN_DELETE_SELF|IN_MOVED_FROM|IN_MOVED_TO|IN_MOVE_SELF
+#ifdef IN_ONLYDIR
+                      |IN_ONLYDIR
+#endif
+    );
+}
+
+#endif
+
+#ifdef HAVE_KQUEUE
+
+#define NUM_WATCHES 2
+
+static int kq = -1;
+static int kfds[NUM_WATCHES];
+static int num_kfds = 0;
+
+static void add_kqueue_watch(const char *dir);
+
+static void add_kqueue_watches(void) {
+    int c = 0;
+
+#ifdef ENABLE_CHROOT
+    c = config.use_chroot;
+#endif
+
+    add_kqueue_watch(c ? "/" : AVAHI_CONFIG_DIR);
+    add_kqueue_watch(c ? "/services" : AVAHI_SERVICE_DIR);
+}
+
+static void add_kqueue_watch(const char *dir) {
+    int fd;
+    struct kevent ev;
+
+    if (kq < 0)
+        return;
+
+    if (num_kfds >= NUM_WATCHES)
+        return;
+
+    fd = open(dir, O_RDONLY);
+    if (fd < 0)
+        return;
+    EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
+           NOTE_DELETE | NOTE_EXTEND | NOTE_WRITE | NOTE_RENAME,
+           0, 0);
+    if (kevent(kq, &ev, 1, NULL, 0, NULL) == -1) {
+        close(fd);
+        return;
+    }
+
+    kfds[num_kfds++] = fd;
+}
+
+#endif
+
+static void reload_config(void) {
+
+#ifdef HAVE_INOTIFY
+    /* Refresh in case the config dirs have been removed */
+    add_inotify_watches();
+#endif
+
+#ifdef HAVE_KQUEUE
+    add_kqueue_watches();
+#endif
+
+#ifdef ENABLE_CHROOT
+    static_service_load(config.use_chroot);
+    static_hosts_load(config.use_chroot);
+#else
+    static_service_load(0);
+    static_hosts_load(0);
+#endif
+    static_service_add_to_server();
+    static_hosts_add_to_server();
+
+    if (resolv_conf_entry_group)
+        avahi_s_entry_group_reset(resolv_conf_entry_group);
+
+    load_resolv_conf();
+
+    update_wide_area_servers();
+    update_browse_domains();
+
+    if (config.publish_resolv_conf && resolv_conf_name_servers && resolv_conf_name_servers[0])
+        resolv_conf_entry_group = add_dns_servers(avahi_server, resolv_conf_entry_group, resolv_conf_name_servers);
+}
+
+#ifdef HAVE_INOTIFY
+
+static void inotify_callback(AvahiWatch *watch, int fd, AVAHI_GCC_UNUSED AvahiWatchEvent event, AVAHI_GCC_UNUSED void *userdata) {
+    char* buffer;
+    int n = 0;
+
+    assert(fd == inotify_fd);
+    assert(watch);
+
+    ioctl(inotify_fd, FIONREAD, &n);
+    if (n <= 0)
+        n = 128;
+
+    buffer = avahi_malloc(n);
+    if (read(inotify_fd, buffer, n) < 0 ) {
+        avahi_free(buffer);
+        avahi_log_error("Failed to read inotify event: %s", avahi_strerror(errno));
+        return;
+    }
+    avahi_free(buffer);
+
+    avahi_log_info("Files changed, reloading.");
+    reload_config();
+}
+
+#endif
+
+#ifdef HAVE_KQUEUE
+
+static void kqueue_callback(AvahiWatch *watch, int fd, AVAHI_GCC_UNUSED AvahiWatchEvent event, AVAHI_GCC_UNUSED void *userdata) {
+    struct kevent ev;
+    struct timespec nullts = { 0, 0 };
+    int res;
+
+    assert(fd == kq);
+    assert(watch);
+
+    res = kevent(kq, NULL, 0, &ev, 1, &nullts);
+
+    if (res > 0) {
+        /* Sleep for a half-second to avoid potential races
+         * during install/uninstall. */
+        usleep(500000);
+        avahi_log_info("Files changed, reloading.");
+        reload_config();
+    } else {
+        avahi_log_error("Failed to read kqueue event: %s", avahi_strerror(errno));
+    }
+}
+
+#endif
+
+static void signal_callback(AvahiWatch *watch, AVAHI_GCC_UNUSED int fd, AVAHI_GCC_UNUSED AvahiWatchEvent event, AVAHI_GCC_UNUSED void *userdata) {
     int sig;
-    AvahiSimplePoll *simple_poll_api = userdata;
     const AvahiPoll *poll_api;
-    
+
     assert(watch);
     assert(simple_poll_api);
 
@@ -521,28 +1046,17 @@ static void signal_callback(AvahiWatch *watch, int fd, AvahiWatchEvent event, vo
 
     switch (sig) {
         case SIGINT:
-        case SIGQUIT:
         case SIGTERM:
             avahi_log_info(
-                "Got %s, quitting.",
-                sig == SIGINT ? "SIGINT" :
-                (sig == SIGQUIT ? "SIGQUIT" : "SIGTERM"));
+                    "Got %s, quitting.",
+                    sig == SIGINT ? "SIGINT" : "SIGTERM");
             avahi_simple_poll_quit(simple_poll_api);
             break;
 
         case SIGHUP:
             avahi_log_info("Got SIGHUP, reloading.");
-            static_service_load();
-            static_service_add_to_server();
-
-            if (resolv_conf_entry_group)
-                avahi_s_entry_group_reset(resolv_conf_entry_group);
-
-            load_resolv_conf(&config);
-            
-            if (resolv_conf && resolv_conf[0])
-                resolv_conf_entry_group = add_dns_servers(avahi_server, resolv_conf_entry_group, resolv_conf);
 
+            reload_config();
             break;
 
         case SIGUSR1:
@@ -556,15 +1070,40 @@ static void signal_callback(AvahiWatch *watch, int fd, AvahiWatchEvent event, vo
     }
 }
 
+/* Imported from ../avahi-client/nss-check.c */
+int avahi_nss_support(void);
+
+static void ignore_signal(int sig)  {
+    struct sigaction sa;
+
+    memset(&sa, 0, sizeof(sa));
+    sa.sa_handler = SIG_IGN;
+    sa.sa_flags = SA_RESTART;
+
+    sigaction(sig, &sa, NULL);
+}
+
 static int run_server(DaemonConfig *c) {
     int r = -1;
     int error;
-    AvahiSimplePoll *simple_poll_api;
-    const AvahiPoll *poll_api;
-    AvahiWatch *sig_watch;
+    const AvahiPoll *poll_api = NULL;
+    AvahiWatch *sig_watch = NULL;
+    int retval_is_sent = 0;
+#ifdef HAVE_INOTIFY
+    AvahiWatch *inotify_watch = NULL;
+#endif
+#ifdef HAVE_KQUEUE
+    int i;
+    AvahiWatch *kqueue_watch = NULL;
+#endif
 
     assert(c);
 
+    ignore_signal(SIGPIPE);
+
+    if (!(nss_support = avahi_nss_support()))
+        avahi_log_warn("WARNING: No NSS support for mDNS detected, consider installing nss-mdns!");
+
     if (!(simple_poll_api = avahi_simple_poll_new())) {
         avahi_log_error("Failed to create main loop object.");
         goto finish;
@@ -572,7 +1111,7 @@ static int run_server(DaemonConfig *c) {
 
     poll_api = avahi_simple_poll_get(simple_poll_api);
 
-    if (daemon_signal_init(SIGINT, SIGQUIT, SIGHUP, SIGTERM, SIGUSR1, 0) < 0) {
+    if (daemon_signal_init(SIGINT, SIGHUP, SIGTERM, SIGUSR1, 0) < 0) {
         avahi_log_error("Could not register signal handlers (%s).", strerror(errno));
         goto finish;
     }
@@ -584,24 +1123,95 @@ static int run_server(DaemonConfig *c) {
 
     if (simple_protocol_setup(poll_api) < 0)
         goto finish;
-    
+
 #ifdef HAVE_DBUS
-    if (c->enable_dbus)
-        if (dbus_protocol_setup(poll_api) < 0)
+    if (c->enable_dbus) {
+        if (dbus_protocol_setup(poll_api,
+                                config.disable_user_service_publishing,
+                                config.n_clients_max,
+                                config.n_objects_per_client_max,
+                                config.n_entries_per_entry_group_max,
+                                !c->fail_on_missing_dbus
+#ifdef ENABLE_CHROOT
+                                && !config.use_chroot
+#endif
+            ) < 0) {
+
+            avahi_log_warn("WARNING: Failed to contact D-Bus daemon.");
+
+            if (c->fail_on_missing_dbus)
+                goto finish;
+        }
+    }
+#endif
+
+#ifdef ENABLE_CHROOT
+
+    if (config.drop_root && config.use_chroot) {
+        if (chroot(AVAHI_CONFIG_DIR) < 0) {
+            avahi_log_error("Failed to chroot(): %s", strerror(errno));
             goto finish;
+        }
+
+        avahi_log_info("Successfully called chroot().");
+        chdir("/");
+
+        if (avahi_caps_drop_all() < 0) {
+            avahi_log_error("Failed to drop capabilities.");
+            goto finish;
+        }
+        avahi_log_info("Successfully dropped remaining capabilities.");
+    }
+
+#endif
+
+#ifdef HAVE_INOTIFY
+    if ((inotify_fd = inotify_init()) < 0)
+        avahi_log_warn( "Failed to initialize inotify: %s", strerror(errno));
+    else {
+        add_inotify_watches();
+
+        if (!(inotify_watch = poll_api->watch_new(poll_api, inotify_fd, AVAHI_WATCH_IN, inotify_callback, NULL))) {
+            avahi_log_error( "Failed to create inotify watcher");
+            goto finish;
+        }
+    }
+#endif
+
+#ifdef HAVE_KQUEUE
+    if ((kq = kqueue()) < 0)
+        avahi_log_warn( "Failed to initialize kqueue: %s", strerror(errno));
+    else {
+        add_kqueue_watches();
+
+        if (!(kqueue_watch = poll_api->watch_new(poll_api, kq, AVAHI_WATCH_IN, kqueue_callback, NULL))) {
+            avahi_log_error( "Failed to create kqueue watcher");
+            goto finish;
+        }
+    }
+#endif
+
+    load_resolv_conf();
+#ifdef ENABLE_CHROOT
+    static_service_load(config.use_chroot);
+    static_hosts_load(config.use_chroot);
+#else
+    static_service_load(0);
+    static_hosts_load(0);
 #endif
-    
-    load_resolv_conf(c);
-    static_service_load();
 
     if (!(avahi_server = avahi_server_new(poll_api, &c->server_config, server_callback, c, &error))) {
         avahi_log_error("Failed to create server: %s", avahi_strerror(error));
         goto finish;
     }
 
+    update_wide_area_servers();
+    update_browse_domains();
 
-    if (c->daemonize)
+    if (c->daemonize) {
         daemon_retval_send(0);
+        retval_is_sent = 1;
+    }
 
     for (;;) {
         if ((r = avahi_simple_poll_iterate(simple_poll_api, -1)) < 0) {
@@ -609,42 +1219,69 @@ static int run_server(DaemonConfig *c) {
             /* We handle signals through an FD, so let's continue */
             if (errno == EINTR)
                 continue;
-            
+
             avahi_log_error("poll(): %s", strerror(errno));
             goto finish;
         } else if (r > 0)
             /* Quit */
             break;
     }
-    
+
+    r = 0;
 
 finish:
-    
+
     static_service_remove_from_server();
     static_service_free_all();
+
+    static_hosts_remove_from_server();
+    static_hosts_free_all();
+
     remove_dns_server_entry_groups();
-    
+
     simple_protocol_shutdown();
 
-#ifdef ENABLE_DBUS
+#ifdef HAVE_DBUS
     if (c->enable_dbus)
         dbus_protocol_shutdown();
 #endif
 
-    if (avahi_server)
+    if (avahi_server) {
         avahi_server_free(avahi_server);
+        avahi_server = NULL;
+    }
 
     daemon_signal_done();
 
     if (sig_watch)
         poll_api->watch_free(sig_watch);
 
-    if (simple_poll_api)
+#ifdef HAVE_INOTIFY
+    if (inotify_watch)
+        poll_api->watch_free(inotify_watch);
+    if (inotify_fd >= 0)
+        close(inotify_fd);
+#endif
+
+#ifdef HAVE_KQUEUE
+    if (kqueue_watch)
+        poll_api->watch_free(kqueue_watch);
+    if (kq >= 0)
+        close(kq);
+    for (i = 0; i < num_kfds; i++) {
+        if (kfds[i] >= 0)
+            close(kfds[i]);
+    }
+#endif
+
+    if (simple_poll_api) {
         avahi_simple_poll_free(simple_poll_api);
+        simple_poll_api = NULL;
+    }
 
-    if (r != 0 && c->daemonize)
+    if (!retval_is_sent && c->daemonize)
         daemon_retval_send(1);
-    
+
     return r;
 }
 
@@ -654,7 +1291,7 @@ static int drop_root(void) {
     struct passwd *pw;
     struct group * gr;
     int r;
-    
+
     if (!(pw = getpwnam(AVAHI_USER))) {
         avahi_log_error( "Failed to find user '"AVAHI_USER"'.");
         return -1;
@@ -674,11 +1311,13 @@ static int drop_root(void) {
 
 #if defined(HAVE_SETRESGID)
     r = setresgid(gr->gr_gid, gr->gr_gid, gr->gr_gid);
+#elif defined(HAVE_SETEGID)
+    if ((r = setgid(gr->gr_gid)) >= 0)
+        r = setegid(gr->gr_gid);
 #elif defined(HAVE_SETREGID)
     r = setregid(gr->gr_gid, gr->gr_gid);
 #else
-    if ((r = setgid(gr->gr_gid)) >= 0)
-        r = setegid(gr->gr_gid);
+#error "No API to drop privileges"
 #endif
 
     if (r < 0) {
@@ -688,11 +1327,13 @@ static int drop_root(void) {
 
 #if defined(HAVE_SETRESUID)
     r = setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);
+#elif defined(HAVE_SETEUID)
+    if ((r = setuid(pw->pw_uid)) >= 0)
+        r = seteuid(pw->pw_uid);
 #elif defined(HAVE_SETREUID)
     r = setreuid(pw->pw_uid, pw->pw_uid);
 #else
-    if ((r = setuid(pw->pw_uid)) >= 0)
-        r = seteuid(pw->pw_uid);
+#error "No API to drop privileges"
 #endif
 
     if (r < 0) {
@@ -703,7 +1344,7 @@ static int drop_root(void) {
     set_env("USER", pw->pw_name);
     set_env("LOGNAME", pw->pw_name);
     set_env("HOME", pw->pw_dir);
-    
+
     avahi_log_info("Successfully dropped root privileges.");
 
     return 0;
@@ -733,12 +1374,12 @@ static int make_runtime_dir(void) {
 
     u = umask(0000);
     reset_umask = 1;
-    
+
     if (mkdir(AVAHI_DAEMON_RUNTIME_DIR, 0755) < 0 && errno != EEXIST) {
         avahi_log_error("mkdir(\""AVAHI_DAEMON_RUNTIME_DIR"\"): %s", strerror(errno));
         goto fail;
     }
-    
+
     chown(AVAHI_DAEMON_RUNTIME_DIR, pw->pw_uid, gr->gr_gid);
 
     if (stat(AVAHI_DAEMON_RUNTIME_DIR, &st) < 0) {
@@ -768,9 +1409,10 @@ static void set_one_rlimit(int resource, rlim_t limit, const char *name) {
 }
 
 static void enforce_rlimits(void) {
-
+#ifdef RLIMIT_AS
     if (config.rlimit_as_set)
         set_one_rlimit(RLIMIT_AS, config.rlimit_as, "RLIMIT_AS");
+#endif
     if (config.rlimit_core_set)
         set_one_rlimit(RLIMIT_CORE, config.rlimit_core, "RLIMIT_CORE");
     if (config.rlimit_data_set)
@@ -786,7 +1428,8 @@ static void enforce_rlimits(void) {
         set_one_rlimit(RLIMIT_NPROC, config.rlimit_nproc, "RLIMIT_NPROC");
 #endif
 
-#ifdef RLIMIT_MEMLOCK
+    /* the sysctl() call from iface-pfroute.c needs locked memory on FreeBSD */
+#if defined(RLIMIT_MEMLOCK) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
     /* We don't need locked memory */
     set_one_rlimit(RLIMIT_MEMLOCK, 0, "RLIMIT_MEMLOCK");
 #endif
@@ -807,32 +1450,43 @@ static void init_rand_seed(void) {
     }
 
     /* If the initialization failed by some reason, we add the time to the seed*/
-    seed |= (unsigned) time(NULL);
+    seed ^= (unsigned) time(NULL);
 
     srand(seed);
 }
 
 int main(int argc, char *argv[]) {
     int r = 255;
-    const char *argv0;
     int wrote_pid_file = 0;
 
     avahi_set_log_function(log_function);
 
     init_rand_seed();
-    
+
     avahi_server_config_init(&config.server_config);
     config.command = DAEMON_RUN;
     config.daemonize = 0;
     config.config_file = NULL;
+#ifdef HAVE_DBUS
     config.enable_dbus = 1;
+    config.fail_on_missing_dbus = 1;
+    config.n_clients_max = 0;
+    config.n_objects_per_client_max = 0;
+    config.n_entries_per_entry_group_max = 0;
+#endif
+
     config.drop_root = 1;
+    config.set_rlimits = 1;
+#ifdef ENABLE_CHROOT
+    config.use_chroot = 1;
+#endif
+    config.modify_proc_title = 1;
+
+    config.disable_user_service_publishing = 0;
     config.publish_dns_servers = NULL;
     config.publish_resolv_conf = 0;
     config.use_syslog = 0;
-    config.no_rlimits = 0;
     config.debug = 0;
-    
     config.rlimit_as_set = 0;
     config.rlimit_core_set = 0;
     config.rlimit_data_set = 0;
@@ -842,21 +1496,28 @@ int main(int argc, char *argv[]) {
 #ifdef RLIMIT_NPROC
     config.rlimit_nproc_set = 0;
 #endif
-    
+
     if ((argv0 = strrchr(argv[0], '/')))
-        argv0++;
+        argv0 = avahi_strdup(argv0 + 1);
     else
-        argv0 = argv[0];
+        argv0 = avahi_strdup(argv[0]);
 
     daemon_pid_file_ident = (const char *) argv0;
     daemon_log_ident = (char*) argv0;
     daemon_pid_file_proc = pid_file_proc;
-    
+
     if (parse_command_line(&config, argc, argv) < 0)
         goto finish;
 
+    if (config.modify_proc_title)
+        avahi_init_proc_title(argc, argv);
+
+#ifdef ENABLE_CHROOT
+    config.use_chroot = config.use_chroot && config.drop_root;
+#endif
+
     if (config.command == DAEMON_HELP) {
-        help(stdout, argv0);
+        help(stdout);
         r = 0;
     } else if (config.command == DAEMON_VERSION) {
         printf("%s "PACKAGE_VERSION"\n", argv0);
@@ -876,7 +1537,7 @@ int main(int argc, char *argv[]) {
         }
 
         r = 0;
-        
+
     } else if (config.command == DAEMON_CHECK)
         r = (daemon_pid_file_is_running() >= 0) ? 0 : 1;
     else if (config.command == DAEMON_RUN) {
@@ -886,7 +1547,7 @@ int main(int argc, char *argv[]) {
             avahi_log_error("This program is intended to be run as root.");
             goto finish;
         }
-        
+
         if ((pid = daemon_pid_file_is_running()) >= 0) {
             avahi_log_error("Daemon already running on PID %u", pid);
             goto finish;
@@ -894,10 +1555,10 @@ int main(int argc, char *argv[]) {
 
         if (load_config_file(&config) < 0)
             goto finish;
-        
+
         if (config.daemonize) {
             daemon_retval_init();
-            
+
             if ((pid = daemon_fork()) < 0)
                 goto finish;
             else if (pid != 0) {
@@ -905,7 +1566,7 @@ int main(int argc, char *argv[]) {
                 /** Parent **/
 
                 if ((ret = daemon_retval_wait(20)) < 0) {
-                    avahi_log_error("Could not recieve return value from daemon process.");
+                    avahi_log_error("Could not receive return value from daemon process.");
                     goto finish;
                 }
 
@@ -919,12 +1580,31 @@ int main(int argc, char *argv[]) {
         if (config.use_syslog || config.daemonize)
             daemon_log_use = DAEMON_LOG_SYSLOG;
 
+        if (sd_listen_fds(0) <= 0)
+            if (daemon_close_all(-1) < 0)
+                avahi_log_warn("Failed to close all remaining file descriptors: %s", strerror(errno));
+
+        daemon_reset_sigs(-1);
+        daemon_unblock_sigs(-1);
+
         if (make_runtime_dir() < 0)
             goto finish;
 
         if (config.drop_root) {
+#ifdef ENABLE_CHROOT
+            if (config.use_chroot)
+                if (avahi_caps_reduce() < 0)
+                    goto finish;
+#endif
+
             if (drop_root() < 0)
                 goto finish;
+
+#ifdef ENABLE_CHROOT
+            if (config.use_chroot)
+                if (avahi_caps_reduce2() < 0)
+                    goto finish;
+#endif
         }
 
         if (daemon_pid_file_create() < 0) {
@@ -936,17 +1616,29 @@ int main(int argc, char *argv[]) {
         } else
             wrote_pid_file = 1;
 
-        if (!config.no_rlimits)
+        if (config.set_rlimits)
             enforce_rlimits();
 
         chdir("/");
-        
+
+#ifdef ENABLE_CHROOT
+        if (config.drop_root && config.use_chroot)
+            if (avahi_chroot_helper_start(argv0) < 0) {
+                avahi_log_error("failed to start chroot() helper daemon.");
+                goto finish;
+            }
+#endif
         avahi_log_info("%s "PACKAGE_VERSION" starting up.", argv0);
-        
+        sd_notifyf(0, "STATUS=%s "PACKAGE_VERSION" starting up.", argv0);
+        avahi_set_proc_title(argv0, "%s: starting up", argv0);
+
         if (run_server(&config) == 0)
             r = 0;
+
+        avahi_log_info("%s "PACKAGE_VERSION" exiting.", argv0);
+        sd_notifyf(0, "STATUS=%s "PACKAGE_VERSION" exiting.", argv0);
     }
-        
+
 finish:
 
     if (config.daemonize)
@@ -955,10 +1647,22 @@ finish:
     avahi_server_config_free(&config.server_config);
     avahi_free(config.config_file);
     avahi_strfreev(config.publish_dns_servers);
-    avahi_strfreev(resolv_conf);
+    avahi_strfreev(resolv_conf_name_servers);
+    avahi_strfreev(resolv_conf_search_domains);
 
-    if (wrote_pid_file)
+    if (wrote_pid_file) {
+#ifdef ENABLE_CHROOT
+        avahi_chroot_helper_unlink(pid_file_proc());
+#else
         daemon_pid_file_remove();
-    
+#endif
+    }
+
+#ifdef ENABLE_CHROOT
+    avahi_chroot_helper_shutdown();
+#endif
+
+    avahi_free(argv0);
+
     return r;
 }