]> git.pond.sub.org Git - empserver/blobdiff - src/lib/player/login.c
Update copyright notice
[empserver] / src / lib / player / login.c
index 03b92e17bad60068b2c07e0137448d4562ad2ffd..893d1b6c3580bb4fafebf0e929cfc7a6a1742c6d 100644 (file)
@@ -1,11 +1,11 @@
 /*
  *  Empire - A multi-player, client/server Internet based war game.
- *  Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
- *                           Ken Stevens, Steve McClure
+ *  Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *                Ken Stevens, Steve McClure, Markus Armbruster
  *
- *  This program is free software; you can redistribute it and/or modify
+ *  Empire is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
+ *  the Free Software Foundation, either version 3 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
@@ -14,8 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  *  ---
  *
  *  ---
  *
  *  login.c: Allow the player to login
- * 
+ *
  *  Known contributors to this file:
  *     Dave Pare, 1994
  *     Steve McClure, 2000
+ *     Markus Armbruster, 2004-2012
+ *     Ron Koenderink, 2005-2009
  */
 
 #include <config.h>
 
-#include <string.h>
-#include "prototypes.h"
-#include "misc.h"
-#include "proto.h"
-#include "player.h"
 #include "com.h"
-#include "empthread.h"
 #include "empio.h"
+#include "empthread.h"
+#include "file.h"
+#include "journal.h"
 #include "match.h"
-#include "nsc.h"
+#include "misc.h"
 #include "nat.h"
+#include "nsc.h"
 #include "optlist.h"
-#include "file.h"
-#include "subs.h"
-#include "common.h"
-#include "gen.h"
-
-#if !defined(_WIN32)
-#include <netinet/in.h>
-#endif
-#include <errno.h>
-
-extern struct cmndstr login_coms[];
-
+#include "player.h"
+#include "proto.h"
+#include "prototypes.h"
+#include "server.h"
+
+static int client_cmd(void);
+static int coun_cmd(void);
+static int kill_cmd(void);
+static int options_cmd(void);
+static int pass_cmd(void);
+static int play_cmd(void);
+static int quit_cmd(void);
+static int sanc_cmd(void);
+static int user_cmd(void);
+
+static struct cmndstr login_coms[] = {
+    {"client client-id...", 0, client_cmd, 0, 0},
+    {"coun country", 0, coun_cmd, 0, 0},
+    {"kill", 0, kill_cmd, 0, 0},
+    {"options option=value...", 0, options_cmd, 0, 0},
+    {"pass password", 0, pass_cmd, 0, 0},
+    {"play [user [country [password]]]", 0, play_cmd, 0, 0},
+    {"quit", 0, quit_cmd, 0, 0},
+    {"sanc", 0, sanc_cmd, 0, 0},
+    {"user name", 0, user_cmd, 0, 0},
+    {NULL, 0, NULL, 0, 0}
+};
 
 /*ARGSUSED*/
 void
 player_login(void *ud)
 {
+    time_t deadline;
     char buf[128];
     char space[128];
-    int ac;
-    int cmd;
+    int res, ac, cmd, prev_state;
 
     player->proc = empth_self();
 
     pr_id(player, C_INIT, "Empire server ready\n");
 
-    while (!io_eof(player->iop) && !io_error(player->iop)) {
-       io_output(player->iop, IO_WAIT);
+    for (;;) {
+       deadline = player_io_deadline(player, 0);
+       if (io_outputwaiting(player->iop)) {
+           if (io_output(player->iop, deadline) <= 0)
+               break;
+           continue;
+       }
        if (io_gets(player->iop, buf, sizeof(buf)) < 0) {
-           io_input(player->iop, IO_WAIT);
+           res = io_input(player->iop, deadline);
+           if (res <= 0)
+               break;
+           continue;
+       }
+       journal_input(buf);
+       ac = parse(buf, space, player->argp, NULL, NULL, NULL);
+       if (ac <= 0) {
+           pr_id(player, C_BADCMD, "Can't parse command\n");
            continue;
        }
-       ac = parse(buf, player->argp, NULL, space, NULL);
        cmd = comtch(player->argp[0], login_coms, 0);
        if (cmd < 0) {
            pr_id(player, C_BADCMD, "Command %s not found\n", player->argp[0]);
@@ -95,15 +121,12 @@ player_login(void *ud)
        default:
            break;
        }
-       if (player->state >= PS_SHUTDOWN)
-           break;
     }
+    prev_state = player->state;
     player->state = PS_SHUTDOWN;
-    if (!io_eof(player->iop)) {
-       pr_id(player, C_EXIT, "so long...\n");
-       io_noblocking(player->iop, 0);
-       while (io_output(player->iop, IO_WAIT) > 0) ;
-    }
+    if (prev_state == PS_PLAYING)
+       empth_rwlock_unlock(shutdown_lock);
+    pr_id(player, C_EXIT, "so long...\n");
     player_delete(player);
     empth_exit();
     /*NOTREACHED*/
@@ -112,17 +135,23 @@ player_login(void *ud)
 static int
 client_cmd(void)
 {
-    int i;
+    int i, sz;
+    char *p, *end;
 
     if (!player->argp[1])
        return RET_SYN;
 
+    p = player->client;
+    end = player->client + sizeof(player->client) - 1;
     for (i = 1; player->argp[i]; ++i) {
        if (i > 1)
-           strncat(player->client, " ", sizeof(player->client) - 1);
-       strncat(player->client, player->argp[i], sizeof(player->client) - 1);
+           *p++ = ' ';
+       sz = strlen(player->argp[i]);
+       sz = MIN(sz, end - p);
+       memcpy(p, player->argp[i], sz);
+       p += sz;
     }
-    player->client[sizeof(player->client) - 1] = '\0';
+    *p = 0;
     pr_id(player, C_CMDOK, "talking to %s\n", player->client);
     return RET_OK;
 }
@@ -190,7 +219,7 @@ pass_cmd(void)
 {
     if (!player->argp[1])
        return RET_SYN;
-    if (player->cnum == 255) {
+    if (player->cnum == NATID_BAD) {
        pr_id(player, C_CMDERR, "need country first\n");
        return RET_FAIL;
     }
@@ -219,7 +248,8 @@ options_cmd(void)
        int val;
     };
     static struct logoptstr login_opts[] = {
-       { "utf-8", PF_UTF8 }
+       { "utf-8", PF_UTF8 },
+       { NULL, 0 }
     };
     char **ap;
     char *p;
@@ -227,7 +257,7 @@ options_cmd(void)
     unsigned i;
 
     if (!player->argp[1]) {
-       for (i = 0; i < sizeof(login_opts) / sizeof(*login_opts); ++i)
+       for (i = 0; login_opts[i].name; ++i)
            pr_id(player, C_DATA, "%s=%d\n",
                  login_opts[i].name,
                  (player->flags & login_opts[i].val) != 0);
@@ -262,7 +292,7 @@ may_play(void)
 {
     struct natstr *np;
 
-    if (player->cnum == 255 || !player->authenticated) {
+    if (player->cnum == NATID_BAD || !player->authenticated) {
        pr_id(player, C_CMDERR, "need country and password\n");
        return 0;
     }
@@ -272,8 +302,11 @@ may_play(void)
        && !strstr(privip, player->hostaddr)) {
        logerror("Deity login from untrusted host attempted by %s",
                 praddr(player));
+       logerror("To allow this, add %s to econfig key privip",
+                player->hostaddr);
        pr_id(player, C_EXIT,
-             "Deity login only from IPs in econfig key privip!\n");
+             "Deity login not allowed from this IP!"
+             "  See log for help on how to allow it.\n");
        return 0;
     }
     return 1;
@@ -286,6 +319,7 @@ play_cmd(void)
     natid cnum;
     struct natstr *natp;
     char **ap;
+    char buf[128];
 
     ap = player->argp;
     if (*++ap) {
@@ -311,7 +345,7 @@ play_cmd(void)
     }
     if (!may_play())
        return RET_FAIL;
-    other = getplayer((natid)player->cnum);
+    other = getplayer(player->cnum);
     if (other) {
        natp = getnatp(player->cnum);
        if (natp->nat_stat != STAT_VIS) {
@@ -321,11 +355,18 @@ play_cmd(void)
        }
        return RET_FAIL;
     }
+    snprintf(buf, sizeof(buf), "Play#%d", player->cnum);
     logerror("%s logged in as country #%d", praddr(player), player->cnum);
+    journal_login();
+    empth_set_name(empth_self(), buf);
     pr_id(player, C_INIT, "%d\n", CLIENTPROTO);
+    empth_rwlock_rdlock(shutdown_lock);
+    player->state = PS_PLAYING;
     player_main(player);
+    journal_logout();
     logerror("%s logged out, country #%d", praddr(player), player->cnum);
-    player->state = PS_SHUTDOWN;
+    if (!io_eof(player->iop) && !io_error(player->iop))
+       io_set_eof(player->iop);
     return RET_OK;
 }
 
@@ -342,28 +383,18 @@ kill_cmd(void)
        return RET_FAIL;
     }
     logerror("%s killed country #%d", praddr(player), player->cnum);
-    io_shutdown(other->iop, IO_READ | IO_WRITE);
-    pr_id(player, C_EXIT, "closed socket of offending job\n");
+    pr_flash(other, "Disconnected by %s\n", praddr(player));
+    io_set_eof(other->iop);
+    other->aborted = 1;
+    other->may_sleep = PLAYER_SLEEP_NEVER;
+    empth_wakeup(other->proc);
+    pr_id(player, C_EXIT, "terminated %s's connection\n", praddr(other));
     return RET_OK;
 }
 
 static int
 quit_cmd(void)
 {
-    pr_id(player, C_EXIT, "so long\n");
-    io_shutdown(player->iop, IO_READ);
+    io_set_eof(player->iop);
     return RET_OK;
 }
-
-struct cmndstr login_coms[] = {
-    {"client client-id...", 0, client_cmd, 0, 0},
-    {"coun country", 0, coun_cmd, 0, 0},
-    {"kill", 0, kill_cmd, 0, 0},
-    {"options option=value...", 0, options_cmd, 0, 0},
-    {"pass password", 0, pass_cmd, 0, 0},
-    {"play [user [country [password]]]", 0, play_cmd, 0, 0},
-    {"quit", 0, quit_cmd, 0, 0},
-    {"sanc", 0, sanc_cmd, 0, 0},
-    {"user name", 0, user_cmd, 0, 0},
-    {0, 0, 0, 0, 0}
-};