remove duplicate prototypes for signal functions
[paraslash.git] / server.c
index 8c9b48a6e371e27bad84baaa482556a4fda45550..6195266bb8f87ca168c410c44aef5dfac18586b4 100644 (file)
--- a/server.c
+++ b/server.c
@@ -41,6 +41,9 @@
 #include "daemon.h"
 #include "string.h"
 #include "ipc.h"
+#include "fd.h"
+#include "signal.h"
+#include "user_list.h"
 
 /** define the array of error lists needed by para_server */
 INIT_SERVER_ERRLISTS;
@@ -55,15 +58,15 @@ struct misc_meta_data *mmd;
  * It also contains the options for all audio file selectors and all supported
  * senders.
 */
-struct gengetopt_args_info conf;
-char *user_list = NULL;
+struct server_args_info conf;
+char *user_list_file = NULL;
 extern void dccp_send_init(struct sender *);
 extern void http_send_init(struct sender *);
 extern void ortp_send_init(struct sender *);
-extern struct audio_format afl[];
 
+/* TODO: This is better handled by autoconf */
 /** the list of supported audio file selectors */
-struct audio_file_selector dblist[] = {
+struct audio_file_selector selectors[] = {
        {
                .name = "random",
                .init = random_selector_init,
@@ -134,15 +137,7 @@ void para_log(int ll, const char* fmt,...)
 
        if (ll < conf.loglevel_arg)
                return;
-       if (!logfile) {
-               if (ll < WARNING)
-                       outfd = stdout;
-               else
-                       outfd = stderr;
-       } else
-               outfd = logfile;
-       if (conf.daemon_given && !logfile)
-               return;
+       outfd = logfile? logfile : stderr;
        time(&t1);
        tm = localtime(&t1);
        strftime(str, MAXLINE, "%b %d %H:%M:%S", tm);
@@ -228,11 +223,11 @@ static void parse_config(int override)
                cf = conf.config_file_arg;
        else
                cf = make_message("%s/.paraslash/server.conf", home);
-       free(user_list);
+       free(user_list_file);
        if (!conf.user_list_given)
-               user_list = make_message("%s/.paraslash/server.users", home);
+               user_list_file = make_message("%s/.paraslash/server.users", home);
        else
-               user_list = para_strdup(conf.user_list_arg);
+               user_list_file = para_strdup(conf.user_list_arg);
        ret = stat(cf, &statbuf);
        if (ret && conf.config_file_given) {
                ret = -1;
@@ -241,7 +236,7 @@ static void parse_config(int override)
        }
        if (!ret) {
                int tmp = conf.daemon_given;
-               cmdline_parser_configfile(cf, &conf, override, 0, 0);
+               server_cmdline_parser_configfile(cf, &conf, override, 0, 0);
                conf.daemon_given = tmp;
        }
        /* logfile */
@@ -258,8 +253,8 @@ out:
        free(home);
        if (ret > 0)
                return;
-       free(user_list);
-       user_list = NULL;
+       free(user_list_file);
+       user_list_file = NULL;
        exit(EXIT_FAILURE);
 }
 
@@ -268,7 +263,6 @@ static void setup_signal_handling(void)
        int ret = 0;
 
        signal_pipe = para_signal_init();
-//     fcntl(signal_pipe, F_SETFL, O_NONBLOCK);
        PARA_NOTICE_LOG("%s", "setting up signal handlers\n");
        ret += para_install_sighandler(SIGINT);
        ret += para_install_sighandler(SIGTERM);
@@ -289,12 +283,12 @@ static void init_selector(void)
        mmd->selector_change = -1; /* no change nec., set to new num by com_chs */
        if (!conf.selector_given)
                goto random;
-       for (i = 0; dblist[i].name; i++) {
-               if (strcmp(dblist[i].name, conf.selector_arg))
+       for (i = 0; selectors[i].name; i++) {
+               if (strcmp(selectors[i].name, conf.selector_arg))
                        continue;
                PARA_NOTICE_LOG("initializing %s audio file selector\n",
-                       dblist[i].name);
-               ret = dblist[i].init(&dblist[i]);
+                       selectors[i].name);
+               ret = selectors[i].init(&selectors[i]);
                if (ret < 0) {
                        PARA_WARNING_LOG("%s", PARA_STRERROR(-ret));
                        break;
@@ -305,16 +299,23 @@ static void init_selector(void)
        PARA_WARNING_LOG("%s", "falling back to the random selector\n");
 random:
        mmd->selector_num = 0;
-       dblist[0].init(&dblist[0]); /* always successful */
+       selectors[0].init(&selectors[0]); /* always successful */
 }
 
 static unsigned init_network(void)
 {
-       int sockfd = init_tcp_socket(conf.port_arg);
+       int fd, ret = init_tcp_socket(conf.port_arg);
 
-       if (sockfd < 0)
-               exit(EXIT_FAILURE);
-       return sockfd;
+       if (ret < 0)
+               goto err;
+       fd = ret;
+       ret = mark_fd_nonblock(fd);
+       if (ret < 0)
+               goto err;
+       return fd;
+err:
+       PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret));
+       exit(EXIT_FAILURE);
 }
 
 static void init_random_seed(void)
@@ -347,13 +348,14 @@ static unsigned do_inits(int argc, char **argv)
 
        init_random_seed();
        /* parse command line options */
-       cmdline_parser(argc, argv, &conf);
-       para_drop_privileges(conf.user_arg);
+       server_cmdline_parser(argc, argv, &conf);
+       para_drop_privileges(conf.user_arg, conf.group_arg);
        /* parse config file, open log and set defaults */
        parse_config(0);
        log_welcome("para_server", conf.loglevel_arg);
        shm_init(); /* init mmd struct */
        server_uptime(UPTIME_SET); /* reset server uptime */
+       init_user_list(user_list_file);
        /* become daemon */
        if (conf.daemon_given)
                daemon_init();
@@ -367,10 +369,6 @@ static unsigned do_inits(int argc, char **argv)
        /* init network socket */
        PARA_NOTICE_LOG("%s", "initializing tcp command socket\n");
        sockfd = init_network();
-       if (conf.autoplay_given) {
-               mmd->afs_status_flags |= AFS_PLAYING;
-               mmd->new_afs_status_flags |= AFS_PLAYING;
-       }
        PARA_NOTICE_LOG("%s", "init complete\n");
        return sockfd;
 }
@@ -379,8 +377,8 @@ static void change_selector(void)
 {
        int ret, old = mmd->selector_num, new = mmd->selector_change;
 
-       dblist[old].shutdown();
-       ret = dblist[new].init(&dblist[new]);
+       selectors[old].shutdown();
+       ret = selectors[new].init(&selectors[new]);
        mmd->selector_change = -1; /* reset */
        if (ret >= 0) {
                mmd->selector_num = new;
@@ -388,7 +386,7 @@ static void change_selector(void)
        }
        /* init failed */
        PARA_ERROR_LOG("%s -- switching to the random selector\n", PARA_STRERROR(-ret));
-       dblist[0].init(&dblist[0]);
+       selectors[0].init(&selectors[0]);
        mmd->selector_num = 0;
 }
 
@@ -403,6 +401,7 @@ static void handle_sighup(void)
        parse_config(1); /* reopens log */
        mmd->selector_change = mmd->selector_num; /* do not change selector.. */
        change_selector(); /* .. just reload */
+       init_user_list(user_list_file); /* reload user list */
 }
 
 static void status_refresh(void)
@@ -436,7 +435,7 @@ int main(int argc, char *argv[])
        /* listen on sock_fd, new connection on new_fd */
        int sockfd, new_fd;
        struct sockaddr_in their_addr;
-       int err, i, max_fileno, ret;
+       int i, max_fileno, ret;
        pid_t chld_pid;
        fd_set rfds, wfds;
        struct timeval *timeout;
@@ -444,14 +443,12 @@ int main(int argc, char *argv[])
        valid_fd_012();
        sockfd = do_inits(argc, argv);
 repeat:
-       /* check socket and signal pipe in any case */
        FD_ZERO(&rfds);
        FD_ZERO(&wfds);
-       FD_SET(sockfd, &rfds);
-       max_fileno = sockfd;
-       FD_SET(signal_pipe, &rfds);
-       max_fileno = MAX(max_fileno, signal_pipe);
-
+       max_fileno = -1;
+       /* check socket and signal pipe in any case */
+       para_fd_set(sockfd, &rfds, &max_fileno);
+       para_fd_set(signal_pipe, &rfds, &max_fileno);
        timeout = afs_preselect();
        status_refresh();
        for (i = 0; senders[i].name; i++) {
@@ -459,44 +456,30 @@ repeat:
                        continue;
                if (!senders[i].pre_select)
                        continue;
-               senders[i].pre_select(mmd->audio_format >= 0?
-                       &afl[mmd->audio_format] : NULL,
-                       &max_fileno,
-                       &rfds, &wfds);
+               senders[i].pre_select( &max_fileno, &rfds, &wfds);
        }
-       if (dblist[mmd->selector_num].pre_select) {
-               ret = dblist[mmd->selector_num].pre_select(&rfds, &wfds);
-               max_fileno = MAX(max_fileno, ret);
+       if (selectors[mmd->selector_num].pre_select) {
+               ret = selectors[mmd->selector_num].pre_select(&rfds, &wfds);
+               max_fileno = PARA_MAX(max_fileno, ret);
        }
        mmd_unlock();
-//     PARA_DEBUG_LOG("%s: select (max = %i)\n", __func__, max_fileno);
-       ret = select(max_fileno + 1, &rfds, &wfds, NULL, timeout);
-       err = errno;
-       //PARA_DEBUG_LOG("%s: select returned  %i\n", __func__, ret);
+       ret = para_select(max_fileno + 1, &rfds, &wfds, timeout);
        mmd_lock();
        if (mmd->selector_change >= 0)
                change_selector();
-       if (dblist[mmd->selector_num].post_select)
-               dblist[mmd->selector_num].post_select(&rfds, &wfds);
-       if (ret < 0 && err == EINTR)
-               goto repeat;
-       if (ret < 0) {
-               PARA_CRIT_LOG("select error (%s)\n", strerror(err));
+       if (selectors[mmd->selector_num].post_select)
+               selectors[mmd->selector_num].post_select(&rfds, &wfds);
+       if (ret < 0)
                goto repeat;
-       }
        for (i = 0; senders[i].name; i++) {
                if (senders[i].status != SENDER_ON)
                        continue;
                if (!senders[i].post_select)
                        continue;
-               senders[i].post_select(mmd->audio_format >= 0?
-                       &afl[mmd->audio_format] : NULL,
-                       &rfds, &wfds);
-       }
-       if (!ret) {
-               afs_send_chunk();
-               status_refresh();
+               senders[i].post_select(&rfds, &wfds);
        }
+       afs_send_chunk();
+       status_refresh();
        if (FD_ISSET(signal_pipe, &rfds)) {
                int sig;
                sig = para_next_signal();
@@ -512,7 +495,7 @@ repeat:
                case SIGTERM:
                        PARA_EMERG_LOG("terminating on signal %d\n", sig);
                        kill(0, SIGTERM);
-                       dblist[mmd->selector_num].shutdown();
+                       selectors[mmd->selector_num].shutdown();
                        mutex_destroy(mmd_mutex);
                        shm_detach(mmd);
                        shm_destroy(mmd_shm_id);