diff options
Diffstat (limited to 'contrib/tcp_wrappers/tcpd.c')
-rw-r--r-- | contrib/tcp_wrappers/tcpd.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/contrib/tcp_wrappers/tcpd.c b/contrib/tcp_wrappers/tcpd.c deleted file mode 100644 index d865b9cce8ebd..0000000000000 --- a/contrib/tcp_wrappers/tcpd.c +++ /dev/null @@ -1,129 +0,0 @@ - /* - * General front end for stream and datagram IP services. This program logs - * the remote host name and then invokes the real daemon. For example, - * install as /usr/etc/{tftpd,fingerd,telnetd,ftpd,rlogind,rshd,rexecd}, - * after saving the real daemons in the directory specified with the - * REAL_DAEMON_DIR macro. This arrangement requires that the network daemons - * are started by inetd or something similar. Connections and diagnostics - * are logged through syslog(3). - * - * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands. - */ - -#ifndef lint -static char sccsid[] = "@(#) tcpd.c 1.10 96/02/11 17:01:32"; -#endif - -/* System libraries. */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <stdio.h> -#include <syslog.h> -#include <string.h> - -#ifndef MAXPATHNAMELEN -#define MAXPATHNAMELEN BUFSIZ -#endif - -#ifndef STDIN_FILENO -#define STDIN_FILENO 0 -#endif - -/* Local stuff. */ - -#include "patchlevel.h" -#include "tcpd.h" - -int allow_severity = SEVERITY; /* run-time adjustable */ -int deny_severity = LOG_WARNING; /* ditto */ - -main(argc, argv) -int argc; -char **argv; -{ - struct request_info request; - char path[MAXPATHNAMELEN]; - - /* Attempt to prevent the creation of world-writable files. */ - -#ifdef DAEMON_UMASK - umask(DAEMON_UMASK); -#endif - - /* - * If argv[0] is an absolute path name, ignore REAL_DAEMON_DIR, and strip - * argv[0] to its basename. - */ - - if (argv[0][0] == '/') { - strcpy(path, argv[0]); - argv[0] = strrchr(argv[0], '/') + 1; - } else { - sprintf(path, "%s/%s", REAL_DAEMON_DIR, argv[0]); - } - - /* - * Open a channel to the syslog daemon. Older versions of openlog() - * require only two arguments. - */ - -#ifdef LOG_MAIL - (void) openlog(argv[0], LOG_PID, FACILITY); -#else - (void) openlog(argv[0], LOG_PID); -#endif - - /* - * Find out the endpoint addresses of this conversation. Host name - * lookups and double checks will be done on demand. - */ - - request_init(&request, RQ_DAEMON, argv[0], RQ_FILE, STDIN_FILENO, 0); - fromhost(&request); - - /* - * Optionally look up and double check the remote host name. Sites - * concerned with security may choose to refuse connections from hosts - * that pretend to have someone elses host name. - */ - -#ifdef PARANOID - if (STR_EQ(eval_hostname(request.client), paranoid)) - refuse(&request); -#endif - - /* - * The BSD rlogin and rsh daemons that came out after 4.3 BSD disallow - * socket options at the IP level. They do so for a good reason. - * Unfortunately, we cannot use this with SunOS 4.1.x because the - * getsockopt() system call can panic the system. - */ - -#ifdef KILL_IP_OPTIONS - fix_options(&request); -#endif - - /* - * Check whether this host can access the service in argv[0]. The - * access-control code invokes optional shell commands as specified in - * the access-control tables. - */ - -#ifdef HOSTS_ACCESS - if (!hosts_access(&request)) - refuse(&request); -#endif - - /* Report request and invoke the real daemon program. */ - - syslog(allow_severity, "connect from %s", eval_client(&request)); - closelog(); - (void) execv(path, argv); - syslog(LOG_ERR, "error: cannot execute %s: %m", path); - clean_exit(&request); - /* NOTREACHED */ -} |