From ae31e19f92e717919ac8e3db9039eb38d2b89aae Mon Sep 17 00:00:00 2001
From: in2 <in2@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Thu, 7 Mar 2002 15:13:44 +0000
Subject: Initial revision

git-svn-id: http://opensvn.csie.org/pttbbs/pttbbs/trunk/pttbbs@1 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 util/bbsrf.c | 148 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 util/bbsrf.c

(limited to 'util/bbsrf.c')

diff --git a/util/bbsrf.c b/util/bbsrf.c
new file mode 100644
index 00000000..66f6cee0
--- /dev/null
+++ b/util/bbsrf.c
@@ -0,0 +1,148 @@
+/* $Id: bbsrf.c,v 1.1 2002/03/07 15:13:45 in2 Exp $ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <utmp.h>
+#include <pwd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include "config.h"
+
+/* fill the hid with from hostname */
+void gethid(char *hid, char *tty)
+{
+    int fd;
+    char *tp;
+    struct utmp data;
+
+    gethostname(hid, MAXHOSTNAMELEN);
+    hid[MAXHOSTNAMELEN] = '\0';
+    tp = strrchr(tty, '/') + 1;
+    if (tp && strlen(tp) == 5)
+    {
+	fd = open(_PATH_UTMP, O_RDONLY);
+	if (fd < 0)
+	    syslog(LOG_ERR, "%s: %m", _PATH_UTMP);
+	else
+	{
+	    while (read(fd, &data, sizeof(data)) == sizeof(data))
+		if (strcmp(data.ut_line, tp) == 0)
+		{
+		    if (data.ut_host[0]) {
+#if MAXHOSTNAMELEN < UT_HOSTSIZE
+			strncpy(hid, data.ut_host, MAXHOSTNAMELEN);
+			hid[MAXHOSTNAMELEN] = '\0';
+#else
+			strncpy(hid, data.ut_host, UT_HOSTSIZE);
+			hid[UT_HOSTSIZE] = '\0';
+#endif
+		    }
+		    break;
+		}
+	    close(fd);
+	}
+    }
+}
+
+/*
+   get system load averages 
+   return 0 if success; otherwise, return -1.
+ */
+int getload(double load[3])
+{
+    int rtv = -1;
+#if defined(linux)
+    FILE *fp;
+
+    fp = fopen(LOAD_FILE, "r");
+    if (fp)
+    {
+	if (fscanf(fp, "%lf %lf %lf", &load[0], &load[1], &load[2]) == 3)
+	    rtv = 0;
+	fclose(fp);
+    }
+#elif defined(__FreeBSD__)
+    if (getloadavg(load, 3) == 3)
+	rtv = 0;
+#endif
+    return rtv;
+}
+
+/*
+   show ban file
+   if filename exist, print it out, sleep 1 second, and return 0;
+   otherwise, return -1.
+ */
+int showbanfile(char *filename)
+{
+    FILE *fp;
+    char buf[256];
+
+    fp = fopen(filename, "r");
+    if (fp)
+    {
+	while (fgets(buf, sizeof(buf), fp))
+	    fputs(buf, stdout);
+	printf("\n============================="
+	       "=============================\n");
+	fclose(fp);
+	sleep(1);
+    }
+    return fp ? 0 : -1;
+}
+
+int main(void)
+{
+    int uid, rtv = 0;
+    char *tty, ttybuf[32], hid[MAXHOSTNAMELEN + 1];
+
+    openlog("bbsrf", LOG_PID | LOG_PERROR, LOG_USER);
+    chdir(BBSHOME);
+    uid = getuid();
+
+    while (1)
+    {
+	if (!showbanfile(BAN_FILE))
+	{
+	    rtv = 1;
+	    break;
+	}
+	else if (uid != BBSUID)
+	{
+	    syslog(LOG_ERR, "UID DOES NOT MATCH");
+	    rtv = -1;
+	    break;
+	}
+	else if (!getpwuid(uid))
+	{
+	    syslog(LOG_ERR, "YOU DONT EXIST");
+	    rtv = -1;
+	    break;
+	}
+	else
+	{
+	    tty = ttyname(0);
+	    if (tty)
+	    {
+		strcpy(ttybuf, tty);
+		gethid(hid, ttybuf);
+	    }
+	    else
+	    {
+		strcpy(ttybuf, "notty");
+		strcpy(hid, "unknown");
+	    }
+	    execl(BBSPROG, "mbbsd", hid, ttybuf, NULL);
+	    syslog(LOG_ERR, "execl(): %m");
+	    rtv = -1;
+	}
+	break;
+    }
+    return rtv;
+}
-- 
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