diff options
Diffstat (limited to 'usr.sbin/rpc.ypxfrd/ypxfrd_main.c')
| -rw-r--r-- | usr.sbin/rpc.ypxfrd/ypxfrd_main.c | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/usr.sbin/rpc.ypxfrd/ypxfrd_main.c b/usr.sbin/rpc.ypxfrd/ypxfrd_main.c deleted file mode 100644 index 8fa3e22..0000000 --- a/usr.sbin/rpc.ypxfrd/ypxfrd_main.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright (c) 1995, 1996 - * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Bill Paul. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "ypxfrd.h" -#include <err.h> -#include <fcntl.h> -#include <paths.h> -#include <stdio.h> -#include <stdlib.h> /* getenv, exit */ -#include <unistd.h> -#include <rpc/pmap_clnt.h> /* for pmap_unset */ -#include <rpc/rpc_com.h> -#include <string.h> /* strcmp */ -#include <signal.h> -#include <sys/ttycom.h> /* TIOCNOTTY */ -#ifdef __cplusplus -#include <sysent.h> /* getdtablesize, open */ -#endif /* __cplusplus */ -#include <memory.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <syslog.h> -#include "ypxfrd_extern.h" -#include <sys/wait.h> -#include <errno.h> - -#ifndef SIG_PF -#define SIG_PF void(*)(int) -#endif - -#ifdef DEBUG -#define RPC_SVC_FG -#endif - -#define _RPCSVC_CLOSEDOWN 120 -int _rpcpmstart; /* Started by a port monitor ? */ -static int _rpcfdtype; - /* Whether Stream or Datagram ? */ - /* States a server can be in wrt request */ - -#define _IDLE 0 -#define _SERVED 1 -#define _SERVING 2 - -extern int _rpcsvcstate; /* Set when a request is serviced */ - -char *progname = "rpc.ypxfrd"; -char *yp_dir = "/var/yp/"; - -static void -_msgout(char *msg) -{ -#ifdef RPC_SVC_FG - if (_rpcpmstart) - syslog(LOG_ERR, "%s", msg); - else - warnx("%s", msg); -#else - syslog(LOG_ERR, "%s", msg); -#endif -} - -static void -closedown(int sig) -{ - if (_rpcsvcstate == _IDLE) { - extern fd_set svc_fdset; - static int size; - int i, openfd; - - if (_rpcfdtype == SOCK_DGRAM) - exit(0); - if (size == 0) { - size = getdtablesize(); - } - for (i = 0, openfd = 0; i < size && openfd < 2; i++) - if (FD_ISSET(i, &svc_fdset)) - openfd++; - if (openfd <= 1) - exit(0); - } - if (_rpcsvcstate == _SERVED) - _rpcsvcstate = _IDLE; - - (void) signal(SIGALRM, (SIG_PF) closedown); - (void) alarm(_RPCSVC_CLOSEDOWN/2); -} - - -static void -ypxfrd_svc_run(void) -{ -#ifdef FD_SETSIZE - fd_set readfds; -#else - int readfds; -#endif /* def FD_SETSIZE */ - extern int forked; - int pid; - int fd_setsize = _rpc_dtablesize(); - - /* Establish the identity of the parent ypserv process. */ - pid = getpid(); - - for (;;) { -#ifdef FD_SETSIZE - readfds = svc_fdset; -#else - readfds = svc_fds; -#endif /* def FD_SETSIZE */ - switch (select(fd_setsize, &readfds, NULL, NULL, - (struct timeval *)0)) { - case -1: - if (errno == EINTR) { - continue; - } - warn("svc_run: - select failed"); - return; - case 0: - continue; - default: - svc_getreqset(&readfds); - if (forked && pid != getpid()) - exit(0); - } - } -} - -static void reaper(int sig) -{ - int status; - int saved_errno; - - saved_errno = errno; - - if (sig == SIGHUP) { - load_securenets(); - errno = saved_errno; - return; - } - - if (sig == SIGCHLD) { - while (wait3(&status, WNOHANG, NULL) > 0) - children--; - } else { - (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS); - exit(0); - } - - errno = saved_errno; - return; -} - -void -usage(void) -{ - fprintf(stderr, "usage: rpc.ypxfrd [-p path]\n"); - exit(0); -} - -int -main(int argc, char *argv[]) -{ - register SVCXPRT *transp = NULL; - int sock; - int proto = 0; - struct sockaddr_in saddr; - int asize = sizeof (saddr); - int ch; - - while ((ch = getopt(argc, argv, "p:h")) != -1) { - switch (ch) { - case 'p': - yp_dir = optarg; - break; - default: - usage(); - break; - } - } - - load_securenets(); - - if (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) { - int ssize = sizeof (int); - - if (saddr.sin_family != AF_INET) - exit(1); - if (getsockopt(0, SOL_SOCKET, SO_TYPE, - (char *)&_rpcfdtype, &ssize) == -1) - exit(1); - sock = 0; - _rpcpmstart = 1; - proto = 0; - openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON); - } else { -#ifndef RPC_SVC_FG - int size; - int pid, i; - - pid = fork(); - if (pid < 0) - err(1, "fork"); - if (pid) - exit(0); - size = getdtablesize(); - for (i = 0; i < size; i++) - (void) close(i); - i = open(_PATH_CONSOLE, 2); - (void) dup2(i, 1); - (void) dup2(i, 2); - i = open(_PATH_TTY, 2); - if (i >= 0) { - (void) ioctl(i, TIOCNOTTY, (char *)NULL); - (void) close(i); - } - openlog("rpc.ypxfrd", LOG_PID, LOG_DAEMON); -#endif - sock = RPC_ANYSOCK; - (void) pmap_unset(YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS); - } - - if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) { - transp = svcudp_create(sock); - if (transp == NULL) { - _msgout("cannot create udp service."); - exit(1); - } - if (!_rpcpmstart) - proto = IPPROTO_UDP; - if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) { - _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, udp)."); - exit(1); - } - } - - if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) { - transp = svctcp_create(sock, 0, 0); - if (transp == NULL) { - _msgout("cannot create tcp service."); - exit(1); - } - if (!_rpcpmstart) - proto = IPPROTO_TCP; - if (!svc_register(transp, YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, ypxfrd_freebsd_prog_1, proto)) { - _msgout("unable to register (YPXFRD_FREEBSD_PROG, YPXFRD_FREEBSD_VERS, tcp)."); - exit(1); - } - } - - if (transp == (SVCXPRT *)NULL) { - _msgout("could not create a handle"); - exit(1); - } - if (_rpcpmstart) { - (void) signal(SIGALRM, (SIG_PF) closedown); - (void) alarm(_RPCSVC_CLOSEDOWN/2); - } - - (void) signal(SIGPIPE, SIG_IGN); - (void) signal(SIGCHLD, (SIG_PF) reaper); - (void) signal(SIGTERM, (SIG_PF) reaper); - (void) signal(SIGINT, (SIG_PF) reaper); - (void) signal(SIGHUP, (SIG_PF) reaper); - - ypxfrd_svc_run(); - _msgout("svc_run returned"); - exit(1); - /* NOTREACHED */ -} |
