Update copyright notice.

[empserver] / src / lib / commands / turn.c

diff --git a/src/lib/commands/turn.c b/src/lib/commands/turn.c
index 158f5c178f7fc77f682f4c85641059f4f3b4f166..4b24b4ded45a5379379451b2fee522e0b439cf28 100644 (file)
--- a/src/lib/commands/turn.c
+++ b/src/lib/commands/turn.c
@@ -1,6 +1,6 @@
 /*
  *  Empire - A multi-player, client/server Internet based war game.
- *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *  Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
  *                           Ken Stevens, Steve McClure
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -19,71 +19,113 @@
  *
  *  ---
  *
- *  See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- *  related information and legal notices. It is expected that any future
- *  projects/authors will amend these files as needed.
+ *  See files README, COPYING and CREDITS in the root of the source
+ *  tree for related information and legal notices.  It is expected
+ *  that future projects/authors will amend these files as needed.
  *
  *  ---
  *
  *  turn.c: Turn the game on, off, or set the login message.
  * 
  *  Known contributors to this file:
- *    
+ *     Marc Olzheim, 2004
  */
 
-#include "misc.h"
-#include "player.h"
+#include <config.h>
+
+#include <errno.h>
+#if !defined(_WIN32)
+#include <unistd.h>
+#elif defined(__GNUC__)
+#include <io.h>
+#endif
 #include "tel.h"
 #include "commands.h"
+#include "optlist.h"
 
-#include <fcntl.h>
-
+/*
+ * Enable / disable logins and set the message of the day.
+ */
 int
 turn(void)
 {
-    extern s_char *upfil;
-    extern s_char *downfil;
-    int fd;
+    FILE *fptr;
     struct telstr tgm;
-    register s_char *p;
-    s_char buf[MAXTELSIZE];
+    char *p;
+    char buf[1024];
+    char msgbuf[MAXTELSIZE + 1]; /* UTF-8 */
+    char *msgfilepath;
 
-    p = getstarg(player->argp[1], "on, off or message? ", buf);
+    p = getstarg(player->argp[1], "on, off or motd? ", buf);
     if (!p)
        return RET_SYN;
     if (strcmp(p, "off") == 0) {
-       (void)unlink(upfil);
-#if !defined(_WIN32)
-       fd = open(downfil, O_RDWR | O_CREAT | O_TRUNC, 0660);
-#else
-       fd = open(downfil, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0660);
-#endif
-       pr("off ");
+       msgfilepath = downfil;
     } else if (strcmp(p, "on") == 0) {
-       (void)unlink(downfil);
-#if !defined(_WIN32)
-       fd = open(upfil, O_RDWR | O_CREAT | O_TRUNC, 0660);
-#else
-       fd = open(upfil, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0660);
-#endif
-       pr("on ");
+       pr("Removing no-login message and re-enabling logins.\n");
+       if ((unlink(downfil) == -1) && (errno != ENOENT)) {
+           pr("Could not remove no-login file, logins still disabled.\n");
+           logerror("Could not remove no-login file (%s).\n", downfil);
+           return RET_SYS;
+       }
+       return RET_OK;
     } else {
-#if !defined(_WIN32)
-       fd = open(upfil, O_RDWR | O_CREAT | O_TRUNC, 0660);
-#else
-       fd = open(upfil, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0660);
-#endif
-       pr("motd ");
+       msgfilepath = motdfil;
     }
-    (void)time(&tgm.tel_date);
-    if ((tgm.tel_length = getele("The World", buf)) <= 0) {
+
+    if (msgfilepath == downfil)
+       pr("Enter a message shown to countries trying to log in.\n");
+    else
+       pr("Enter a new message of the day.\n");
+
+    time(&tgm.tel_date);
+    tgm.tel_length = getele("The World", msgbuf);
+
+    if (tgm.tel_length < 0) {
        pr("Ignored\n");
-       close(fd);
+       if (msgfilepath == downfil)
+           pr("NOT disabling logins.\n");
        return RET_SYN;
+    } else if (tgm.tel_length == 0) {
+       if (msgfilepath == motdfil) {
+           pr("Removing exsting motd.\n");
+           if ((unlink(msgfilepath) == -1) && (errno != ENOENT)) {
+               pr("Could not remove motd.\n");
+               logerror("Could not remove motd file (%s).\n",
+                        msgfilepath);
+               return RET_SYS;
+           }
+           return RET_OK;
+       } else
+           pr("Writing empty no-login message.\n");
     }
-    (void)write(fd, (s_char *)&tgm, sizeof(tgm));
-    (void)write(fd, buf, tgm.tel_length);
-    (void)close(fd);
+
+    fptr = fopen(msgfilepath, "wb");
+    if (fptr == NULL) {
+       pr("Something went wrong opening the message file.\n");
+       logerror("Could not open message file (%s).\n", msgfilepath);
+       return RET_SYS;
+    }
+
+    if (msgfilepath == downfil)
+       pr("Logins disabled.\n");
+
+    if ((fwrite(&tgm, sizeof(tgm), 1, fptr) != 1) ||
+       (fwrite(msgbuf, tgm.tel_length, 1, fptr) != 1)) {
+       fclose(fptr);
+       pr("Something went wrong writing the message file.\n");
+       logerror("Could not properly write message file (%s).\n",
+           msgfilepath);
+       return RET_SYS;
+    }
+    if (fclose(fptr)) {
+       pr("Something went wrong closing the message.\n");
+       logerror("Could not properly close message file (%s).\n",
+           msgfilepath);
+       return RET_SYS;
+    }
+
     pr("\n");
+
     return RET_OK;
 }