home *** CD-ROM | disk | FTP | other *** search
- RCS_ID_C="$Id: inetd.c,v 1.11 1993/10/21 01:51:20 ppessi Exp $";
- /*
- * inetd.c --- Internet super-server
- *
- * Author: ppessi <Pekka.Pessi@hut.fi>
- *
- * Copyright © 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
- * Helsinki University of Technology, Finland.
- * All rights reserved.
- *
- * Created : Mon May 24 00:34:11 1993 ppessi
- * Last modified: Thu Oct 21 03:51:03 1993 ppessi
- *
- * $Log: inetd.c,v $
- * Revision 1.11 1993/10/21 01:51:20 ppessi
- * Added correcto prototype for CheckIO()
- *
- * Revision 1.10 1993/10/20 05:31:07 ppessi
- * Using now gettimeofday().
- *
- * Revision 1.9 1993/08/13 04:57:07 jraja
- * Fixes for the second release.
- *
- * Revision 1.8 1993/08/10 20:46:23 jraja
- * Added version string.
- *
- * Revision 1.7 1993/08/10 20:29:26 jraja
- * Added leap years to the time calculations (ppessi).
- *
- * Revision 1.6 1993/06/20 12:40:17 jraja
- * Added SAVEDS to the start_builtin for it to be able to find SysBase.
- *
- * Revision 1.5 1993/06/04 11:44:19 jraja
- * Fixes for the first release.
- *
- * Revision 1.4 93/06/03 20:11:51 ppessi
- * Changed the daemon naming scheme, removed template from inetd.conf
- *
- * Revision 1.3 93/05/28 20:11:48 ppessi
- * Now works with CreateNewProc
- *
- * Revision 1.2 93/05/25 23:07:35 ppessi
- * Added external daemon launching
- *
- * Revision 1.1 93/05/24 21:42:36 ppessi
- * Original BSD code.
- *
- */
-
- #include "inetd_rev.h"
- static const char version[] = VERSTAG;
-
- char copyright[] =
- "@(#) Copyright © 1983 The Regents of the University of California.\n"
- "All rights reserved.\n"
- "Copyright © 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>\n"
- "Helsinki University of Technology, Finland.\n"
- "All rights reserved.\n";
-
- /*
- * Copyright (c) 1983,1991 The Regents of the University of California.
- * 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 the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
- */
-
- /****** netutil.doc/inetd ***************************************************
- *
- * NAME
- * inetd - internet ``super-server''
- *
- * TEMPLATE
- * inetd DEBUG/S CONFIGFILE
- *
- * DESCRIPTION
- *
- * Inetd should be run when the AmiTCP/IP protocol stack is started.
- * Inetd listens for connections on certain internet sockets. When a
- * connection is found on one of its sockets, it decides what service the
- * socket corresponds to, and invokes a program to service the request.
- * After the program is finished, it continues to listen on the socket
- * (except in some cases which will be described below). Essentially,
- * inetd allows running one daemon to invoke several others, reducing
- * load on the system.
- *
- * PARAMETERS
- * DEBUG Turns on debugging.
- *
- * CONFIGFILE Specifies the configuration file name.
- *
- * CONFIGURATION
- *
- * Upon execution, inetd reads its configuration information from a
- * configuration file which, by default, is AmiTCP:db/inetd.conf. There
- * must be an entry for each field of the configuration file, with
- * entries for each field separated by a tab or a space. Comments are
- * denoted by a ``#'' at the beginning of a line or ``;'' anywhere in the
- * line. There must be an entry for each field. The fields of the
- * configuration file are as follows:
- *
- * service name
- * socket type
- * protocol
- * wait/nowait
- * user
- * server program
- * server program name
- * server program arguments
- *
- * The service-name entry is the name of a valid service in the
- * netdatabase. For ``internal'' services (discussed below), the service
- * name must be the official name of the service.
- *
- * The socket-type should be one of ``stream'', ``dgram'', ``raw'',
- * ``rdm'', or ``seqpacket'', depending on whether the socket is a
- * stream, datagram, raw, reliably delivered message, or sequenced packet
- * socket. Current system supports only stream, datagram and raw
- * protocols.
- *
- * The protocol must be a valid protocol as given in netdatabase.
- * Examples might be ``tcp'' or ``udp''.
- *
- * The wait/nowait entry is useful for datagram sockets only (other
- * sockets should have a ``nowait'' entry in this space). If a datagram
- * server connects to its peer, freeing the socket so inetd can received
- * further messages on the socket, it is said to be a ``multi-threaded''
- * server, and should use the ``nowait'' entry. For datagram servers
- * which process all incoming datagrams on a socket and eventually time
- * out, the server is said to be ``single-threaded'' and should use a
- * ``wait'' entry. Comsat and talkd are both examples of the latter type
- * of datagram server.
- *
- * The user entry should contain the user name of the user as whom the
- * server should run. This field is for Unix and future compability
- * only.
- *
- * The server-program entry should contain the pathname of the program
- * which is to be executed by inetd when a request is found on its
- * socket. If the server program is resident, the path name should be
- * suppressed. If inetd provides this service internally, this entry
- * should be ``internal''.
- *
- * The server-program-name is CLI command name for the server process. It
- * is shown in the printout of ``status'' command. (Task name of the
- * server process is the service and the peer address, e.g. ``echo
- * [192.233.15.19]''.) This and argument entry are optional.
- *
- * The server program arguments should be just as arguments normally are.
- *
- * Inetd provides several ``trivial'' services internally by use of
- * routines within itself. These services are ``echo'', ``discard'',
- * ``chargen'' (character generator), ``daytime'' (human readable time),
- * and ``time'' (machine readable time, in the form of the number of
- * seconds since mid night, January 1, 1900). All of these services are
- * TCP and UDP based. For details of these services, consult the
- * appropriate RFC from the Network Information Center.
- *
- * Inetd rereads its configuration file when it receives the CTRL-F
- * signal. Services may be added, deleted or modified when the
- * configuration file is reread.
- *
- * HISTORY
- * The inetd command appeared in 4.3BSD system.
- *
- * SEE ALSO
- *
- *****************************************************************************
- *
- */
-
- /*
- * Inetd - Internet super-server
- *
- * This program invokes all internet services as needed.
- * connection-oriented services are invoked each time a connection is
- * made, by creating a process. Created server process is passed the
- * connection as file descriptor 0 and is expected to do a getpeername
- * to find out the source host and port.
- *
- * Datagram oriented services are invoked when a datagram arrives; a
- * process is created and passed a pending message on file descriptor
- * 0. Datagram servers may either connect to their peer, freeing up
- * the original socket for inetd to receive further messages on, or
- * ``take over the socket'', processing all arriving datagrams and,
- * eventually, timing out. The first type of server is said to
- * be ``multi-threaded''; the second type of server
- * ``single-threaded''.
- *
- * Inetd uses a configuration file which is read at startup and,
- * possibly, at some later time in response to a signal CTRL_F. The
- * configuration file is parsed with standard DOS functions with
- * template given below. Multiple line entries must have a ``+'' char at
- * the end of the file.
- *
- * service must be in /etc/services
- * socket type stream/dgram/raw/rdm/seqpacket
- * protocol must be in /etc/protocols
- * dowait single-threaded/multi-threaded
- * user user to run daemon as
- * server program full path name
- * server program name CLI command name (optional)
- * server program arguments Normal command argument line
- *
- * Comment lines are indicated by a `#' in column 1.
- */
-
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <sys/time.h>
-
- #include <netinet/in.h>
- #include <arpa/inet.h>
-
- #include <errno.h>
- #include <signal.h>
- #include <netdb.h>
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <time.h>
-
- #ifdef AMIGA
- #include <exec/execbase.h>
- #include <exec/memory.h>
- #include <devices/timer.h>
- #include <dos/dostags.h>
- extern struct ExecBase *SysBase;
- #if __SASC
- #include <proto/socket.h>
- #include <proto/dos.h>
- #include <clib/exec_protos.h>
- #include <pragmas/exec_sysbase_pragmas.h>
- #include <pragmas/timer_pragmas.h>
- /* #elif __GNUC__
- #include <inline/socket.h>
- #include <inline/exec.h>
- */
- #else
- #error Unsupported compiler
- #include <clib/socket_protos.h>
- #endif
- #include <sys/syslog.h>
- /* Correct prototype for the CheckIO.
- * (The one in clib/exec_protos.h has wrong return value type: BOOL (16 bits)
- * instead of a pointer (32 bits)!)
- */
- struct IORequest * CheckIO(struct IORequest *req);
- #else /* def AMIGA */
- #include <pwd.h>
- #include <sys/file.h>
- #include <sys/wait.h>
- #include <sys/resource.h>
- #include <syslog.h>
- #endif
-
- /* Compiler specific definitions */
- #if __GNUC__
- #define SAVEDS
- #define REG(X)
- #define ASM
- #elif __SASC
- #define SAVEDS __saveds
- #define REG(X) register __ ## X
- #define ASM __asm
- #else
- #define SAVEDS
- #endif
-
- #include "inetd.h"
- #include "inetdlib.h"
-
- /* don't start more than TOOMANY servers in CNT_INTVL seconds */
- #define TOOMANY 10
- #define CNT_INTVL 60
-
- #define RETRYTIME (60*10) /* retry after bind or server fail */
-
- #define INETDNAME "inetd"
-
- #define MAXARGS 9
- enum fileargs
- {
- service = 0, socket_type, protocol, wait, user, server, cmdname, arguments
- };
- #define TYPETEMPLATE "stream,dgram,raw,rdm,seqpacket"
- #define WAITTEMPLATE "nowait,wait"
-
- extern int errno;
-
- void reapchild(void);
- void startserver(register struct servtab *sep, long ctrl);
- void askalarm(long seconds);
- void getalarm(void);
- void config(void);
- void retry(void);
- void setup(register struct servtab *sep);
- struct servtab *enter(struct servtab *cp);
-
- int setconfig(void);
- struct servtab *getconfigent(void);
- void freeconfig(register struct servtab *cp);
- void endconfig(void);
- void print_service(char *action, struct servtab *sep);
-
- ASM VOID exitcode(REG(d0) LONG status, REG(d1) LONG exitmessage);
- LONG start_builtin(void);
- void setproctitle(char *a, int s);
-
- UBYTE *proctitle(char *a, int s);
- void amigainit(void);
- void amigadeinit(void);
- static ULONG csprintf(struct CSource *buf, const char *fmt, ...);
-
- int nsock = 0, maxsock = 0;
- fd_set allsock;
- int options = 0;
- struct servent *sp = NULL;
-
- /*
- * We create a "process table" for builtins, because they
- * must be waited as they use the same code segment as we do
- */
- #define MAX_BUILTIN_PROC 16
- int builtins_started = 0;
- long ptable[MAX_BUILTIN_PROC] = { 0 };
-
- struct DaemonPort *dport = NULL;
-
- #define DO_WAIT ((struct DaemonMessage *)1)
- #define DONT_WAIT ((struct DaemonMessage *)NULL)
-
- struct MsgPort *tport = NULL;
- struct timerequest *tmsg = NULL;
- int timer_is_open = 0;
- #define TimerBase (tmsg->tr_node.io_Device)
-
- struct servtab {
- char *se_service; /* name of service */
- long se_socktype; /* type of socket to use */
- char *se_proto; /* protocol used */
- struct DaemonMessage *se_wait; /* single threaded server */
- char *se_user; /* user name to run as */
- struct biltin *se_bi; /* if built-in, description */
- char *se_server; /* server program */
- char *se_argv0; /* cli name for daemon */
- char *se_argv; /* program arguments */
- long se_fd; /* open descriptor */
- struct sockaddr_in se_ctrladdr;/* bound address */
- struct timeval se_time; /* start of se_count */
- struct servtab *se_next;
- short se_checked; /* looked at during merge */
- short se_count; /* number started since se_time */
- } *servtab;
-
- /*
- * Internal Services
- *
- * Because Data Segment is *not* duplicated by CreateNewProc
- * server routines must be re-entrable and not touch global data
- */
- int echo_stream(void *SocketBase, int s, struct servtab *sep);
- int echo_dg(void *SocketBase, int s, struct servtab *sep);
- int discard_stream(void *SocketBase, int s, struct servtab *sep);
- int discard_dg(void *SocketBase, int s, struct servtab *sep);
- int machtime_stream(void *SocketBase, int s, struct servtab *sep);
- int machtime_dg(void *SocketBase, int s, struct servtab *sep);
- int daytime_stream(void *SocketBase, int s, struct servtab *sep);
- int daytime_dg(void *SocketBase, int s, struct servtab *sep);
- int chargen_stream(void *SocketBase, int s, struct servtab *sep);
- int chargen_dg(void *SocketBase, int s, struct servtab *sep);
-
- struct biltin {
- char *bi_service; /* internally provided service name */
- int bi_socktype; /* type of socket supported */
- int bi_process; /* 1 if should start a process */
- struct DaemonMessage *bi_wait; /* DO_WAIT if should wait for child */
- int (*bi_fn)(void *SocketBase, int s, struct servtab *sep);
- /* function which performs it */
- } biltins[] = {
- /* Echo received data */
- "echo", SOCK_STREAM, 1, DONT_WAIT, echo_stream,
- "echo", SOCK_DGRAM, 0, DONT_WAIT, echo_dg,
-
- /* Internet /dev/null */
- "discard", SOCK_STREAM, 1, DONT_WAIT, discard_stream,
- "discard", SOCK_DGRAM, 0, DONT_WAIT, discard_dg,
-
- /* Return 32 bit time since 1970 */
- "time", SOCK_STREAM, 0, DONT_WAIT, machtime_stream,
- "time", SOCK_DGRAM, 0, DONT_WAIT, machtime_dg,
-
- /* Return human-readable time */
- "daytime", SOCK_STREAM, 0, DONT_WAIT, daytime_stream,
- "daytime", SOCK_DGRAM, 0, DONT_WAIT, daytime_dg,
-
- /* Familiar character generator */
- "chargen", SOCK_STREAM, 1, DONT_WAIT, chargen_stream,
- "chargen", SOCK_DGRAM, 0, DONT_WAIT, chargen_dg,
- 0
- };
-
- /* Internal buffer size. Allocated from stack */
- #define BUFSIZE 8192
-
- #define NUMINT (sizeof(intab) / sizeof(struct inent))
-
- int debug;
- char *CONFIG = _PATH_INETDCONF;
-
- main(void)
- {
- register struct servtab *sep;
- ULONG events;
- ULONG mask;
-
- {
- LONG Argv[2];
- struct RDArgs *rdargs;
-
- Argv[0] = Argv[1] = 0;
- rdargs = ReadArgs("DEBUG/S,CONFIGFILE", Argv, NULL);
-
- if (!rdargs) {
- PrintFault(IoErr(), "ReadArgs");
- exit(1);
- }
- debug = Argv[0];
- if (Argv[1])
- CONFIG = strdup((char *)Argv[1]);
-
- FreeArgs(rdargs);
- }
-
- if (debug) {
- options |= SO_DEBUG;
- } else {
- #if 0
- daemon(0, 0);
- #endif
- }
- #ifdef notyet
- openlog("inetd", LOG_PID | LOG_NOWAIT, LOG_DAEMON);
- #endif
-
- amigainit();
-
- events = 1 << (dport->dp_Port.mp_SigBit) | 1 << (tport->mp_SigBit)
- | SIGBREAKF_CTRL_F | SIGBREAKF_CTRL_C;
- SetSocketSignals(0L, 0L, 0L); /* no no no no no no there is no EINTR */
-
- config();
-
- for (;;) {
- int n, ctrl;
- fd_set readable;
-
- mask = events;
- readable = allsock;
- if ((n = WaitSelect(maxsock + 1, &readable, (fd_set *)NULL,
- (fd_set *)NULL, (struct timeval *)NULL, &mask)) < 0) {
- if (errno != EINTR)
- syslog(LOG_WARNING, "select: %s", strerror(errno));
- continue;
- }
-
- if (mask & SIGBREAKF_CTRL_F) {
- config();
- }
-
- if (mask & SIGBREAKF_CTRL_C) {
- exit(0);
- }
-
- if (mask & (1<<(tport->mp_SigBit))) {
- getalarm();
- }
-
- if (mask & (1<<(dport->dp_Port.mp_SigBit))) {
- reapchild();
- }
-
- for (sep = servtab; n && sep; sep = sep->se_next)
- if (sep->se_fd != -1 && FD_ISSET(sep->se_fd, &readable)) {
- n--;
- if (debug)
- fprintf(stderr, "someone wants %s\n", sep->se_service);
- if (sep->se_socktype == SOCK_STREAM) {
- ctrl = accept(sep->se_fd, NULL, NULL);
- if (debug)
- fprintf(stderr, "accept, ctrl %ld\n", ctrl);
- if (ctrl < 0) {
- if (errno != EINTR)
- syslog(LOG_WARNING, "accept (for %s): %s",
- sep->se_service, strerror(errno));
- continue;
- }
- } else
- ctrl = sep->se_fd;
- if (sep->se_bi == 0 || sep->se_bi->bi_process) {
- startserver(sep, ctrl);
- } else {
- (*sep->se_bi->bi_fn)(SocketBase, ctrl, sep);
- if (sep->se_socktype == SOCK_STREAM)
- CloseSocket(ctrl);
- }
- }
- }
- }
-
- /*
- * startserver:
- * Launch a new process to handle service
- */
- void
- startserver( register struct servtab *sep, long ctrl)
- {
- LONG id;
- struct DaemonMessage *dm = CreateIORequest(dport, sizeof(*dm));
- UBYTE *dname = proctitle(sep->se_service, ctrl);
- int ok = 0;
-
- if (!dm || !dname) {
- syslog(LOG_ERR, "inetd exhausted memory, exits");
- if (dm) DeleteIORequest(dm);
- if (dname) FreeVec(dname);
- exit(1);
- }
-
- if (sep->se_count++ == 0) {
- (void)gettimeofday(&sep->se_time, (struct timezone *)0);
- } else if (sep->se_count >= TOOMANY) {
- struct timeval now;
- (void)gettimeofday(&now, (struct timezone *)0);
- if (now.tv_sec - sep->se_time.tv_sec > CNT_INTVL) {
- sep->se_time = now;
- sep->se_count = 1;
- } else {
- syslog(LOG_ERR, "%s/%s server failing (looping), "
- "service terminated\n", sep->se_service, sep->se_proto);
- FD_CLR(sep->se_fd, &allsock);
- (void) CloseSocket(sep->se_fd);
- sep->se_fd = -1;
- sep->se_count = 0;
- nsock--;
- askalarm(RETRYTIME);
- }
- }
-
- if (sep->se_socktype == SOCK_STREAM)
- id = ReleaseSocket(ctrl, -1);
- else
- id = ReleaseCopyOfSocket(ctrl, -1);
-
- if (dm != NULL && id != -1) {
- dm->dm_Msg.mn_Node.ln_Name = dname;
- dm->dm_Id = id;
- dm->dm_Family = AF_INET;
- dm->dm_Type = sep->se_socktype;
-
- if (sep->se_bi) {
- struct Process *pid = NULL;
- /*
- * Start a built in function
- */
- dm->dm_Retval = (LONG)sep;
- dm->dm_Type = DMTYPE_INTERNAL;
- if (builtins_started < MAX_BUILTIN_PROC) {
- pid =
- CreateNewProcTags(NP_Entry, start_builtin, NP_StackSize, BUFSIZE*2,
- NP_ExitCode, exitcode, NP_ExitData, dm,
- NP_Priority, -10,
- dname ? NP_Name : TAG_DONE, dname,
- TAG_DONE);
- ok = pid != NULL;
- if (ok) {
- dm->dm_Pid = pid;
- ptable[builtins_started++] = (long)pid;
- }
- }
- } else {
- /*
- * Start an external process
- */
- BPTR input = Open("NIL:", MODE_OLDFILE);
- BPTR output = Open("NIL:", MODE_OLDFILE);
- #if 1
- BPTR seglist;
- struct Segment *sl;
-
- /* Try to find seglist from resident list */
- Forbid();
- if (sl = FindSegment(sep->se_server, NULL, FALSE)) {
- if (sl->seg_UC >= 0) {
- sl->seg_UC++;
- dm->dm_Seg = sl; /* must be freed */
- } else if (sl->seg_UC != -2) {
- sl = NULL;
- }
- }
- Permit();
-
- if (sl)
- seglist = sl->seg_Seg;
- else
- seglist = NewLoadSegTags(sep->se_server, TAG_DONE);
-
- if (input && output && seglist) {
- ok = (int)
- CreateNewProcTags(NP_Seglist, seglist,
- NP_FreeSeglist, sl == NULL,
- NP_Cli, TRUE,
- NP_CommandName, sep->se_argv0,
- NP_Arguments, sep->se_argv,
- NP_Input, input,
- NP_Output, output,
- NP_StackSize, BUFSIZE*2,
- NP_Priority, -10,
- NP_ExitCode, dport->dp_ExitCode,
- NP_ExitData, dm,
- dname ? NP_Name : TAG_END, dname,
- TAG_END, NULL);
- }
- if (!ok) {
- if (seglist) UnLoadSeg(seglist);
- if (input) Close(input);
- if (output) Close(output);
- }
- }
- #else
- if (input && output) {
- ok = !SystemTags(sep->se_argv,
- SYS_Asynch, 1, SYS_UserShell, 1,
- SYS_Input, input, SYS_Output, output,
- NP_StackSize, BUFSIZE*2,
- NP_ExitCode, exitcode, NP_ExitData, dm,
- NP_Priority, -10,
- dname ? NP_Name : TAG_END, dname,
- TAG_END, NULL);
- }
- if (!ok) {
- if (input) Close(input);
- if (output) Close(output);
- }
- }
- #endif
- if (ok && sep->se_wait) {
- sep->se_wait = dm;
- if (sep->se_fd >= 0) {
- FD_CLR(sep->se_fd, &allsock);
- nsock--;
- }
- }
- }
-
- /* Clean up */
- if (!ok) {
- /* Drop the pending datagram */
- char buf[32];
- if (sep->se_socktype != SOCK_STREAM)
- recv(ctrl, buf, sizeof (buf), 0);
-
- if (dm) DeleteIORequest(dm);
- if (dname) FreeVec(dname);
- if (id != -1) {
- ctrl = ObtainSocket(id, AF_INET, sep->se_socktype, 0);
- if (ctrl >= 0) CloseSocket(ctrl);
- }
- }
- }
-
- /*
- * reapchild:
- * handle death messages from childs
- */
- void
- reapchild(void)
- {
- struct DaemonMessage *dm;
-
- while (dm = (struct DaemonMessage *)GetMsg(dport)) {
- long status = dm->dm_Retval;
- register struct servtab *sep;
-
- if (debug)
- fprintf(stderr, "reaped child %s\n", dm->dm_Msg.mn_Node.ln_Name);
- for (sep = servtab; sep; sep = sep->se_next)
- if (sep->se_wait == dm) {
- if (status)
- syslog(LOG_WARNING,
- "%s: exit status 0x%lx",
- sep->se_server, status);
- if (debug)
- fprintf(stderr, "restored %s, fd %ld\n",
- sep->se_service, sep->se_fd);
- FD_SET(sep->se_fd, &allsock);
- nsock++;
- sep->se_wait = DO_WAIT;
- }
-
- /* update "process table" */
- if (dm->dm_Type == DMTYPE_INTERNAL) {
- long pid = (long)dm->dm_Pid;
- int i = --builtins_started;
- for (i; i >= 0; i--)
- if (pid = ptable[i]) {
- ptable[i] = ptable[builtins_started];
- break;
- }
- if (i < 0) {
- syslog(LOG_ALERT, "inetd: unknown internal daemon 0x%lx", pid);
- builtins_started++;
- }
- }
- /* Free resources allocated for the daemon */
- if (dm->dm_Seg) {
- Forbid();
- dm->dm_Seg->seg_UC--;
- Permit();
- }
- if (dm->dm_Msg.mn_Node.ln_Name)
- FreeVec(dm->dm_Msg.mn_Node.ln_Name);
- DeleteIORequest(dm);
- }
- }
-
- /*
- * config:
- * configure services
- */
- void
- config(void)
- {
- register struct servtab *sep, *cp, **sepp;
-
- if (!setconfig()) {
- endconfig();
- return;
- }
-
- for (sep = servtab; sep; sep = sep->se_next)
- sep->se_checked = 0;
- while (cp = getconfigent()) {
- for (sep = servtab; sep; sep = sep->se_next)
- if (strcmp(sep->se_service, cp->se_service) == 0 &&
- strcmp(sep->se_proto, cp->se_proto) == 0)
- break;
- if (sep != 0) {
- freeconfig(sep);
- /*
- * sep->se_wait may be holding the "pid" of a daemon
- * that we're waiting for. If so, don't overwrite
- * it unless the config file explicitly says don't
- * wait.
- */
- if (cp->se_bi == 0 &&
- (sep->se_wait == DO_WAIT || cp->se_wait == DONT_WAIT))
- sep->se_wait = cp->se_wait;
- sep->se_service = cp->se_service;
- sep->se_proto = cp->se_proto;
- sep->se_user = cp->se_user;
- sep->se_server = cp->se_server;
- sep->se_argv = cp->se_argv;
- if (debug)
- print_service("REDO", sep);
- } else {
- sep = enter(cp);
- if (debug)
- print_service("ADD ", sep);
- }
- sep->se_checked = 1;
- sp = getservbyname(sep->se_service, sep->se_proto);
- if (sp == 0) {
- syslog(LOG_ERR, "%s/%s: unknown service",
- sep->se_service, sep->se_proto);
- if (sep->se_fd != -1)
- (void) CloseSocket(sep->se_fd);
- sep->se_fd = -1;
- continue;
- }
- if (sp->s_port != sep->se_ctrladdr.sin_port) {
- sep->se_ctrladdr.sin_port = sp->s_port;
- if (sep->se_fd != -1)
- (void) CloseSocket(sep->se_fd);
- sep->se_fd = -1;
- }
- if (sep->se_fd == -1)
- setup(sep);
- }
- endconfig();
- /*
- * Purge anything not looked at above.
- */
- sepp = &servtab;
- while (sep = *sepp) {
- if (sep->se_checked) {
- sepp = &sep->se_next;
- continue;
- }
- *sepp = sep->se_next;
- if (sep->se_fd != -1) {
- FD_CLR(sep->se_fd, &allsock);
- nsock--;
- (void) CloseSocket(sep->se_fd);
- }
- if (debug)
- print_service("FREE", sep);
- freeconfig(sep);
- free((char *)sep);
- }
- }
-
- /*
- * askalarm:
- * ask for timeout
- */
- void
- askalarm(long seconds)
- {
- if (tmsg->tr_node.io_Message.mn_Node.ln_Type == NT_UNKNOWN
- || CheckIO(tmsg)) {
- tmsg->tr_time.tv_secs = seconds;
- tmsg->tr_time.tv_micro = 0;
- SendIO(tmsg);
- }
- }
-
- /*
- * getalarm:
- * handle timeouts
- */
- void
- getalarm(void)
- {
- struct Message *msg;
- while (msg = GetMsg(tport)) {
- if ((struct timerequest *)msg == tmsg) {
- tmsg->tr_node.io_Message.mn_Node.ln_Type = NT_UNKNOWN;
- retry();
- continue;
- }
- }
- }
-
- /*
- * retry:
- * try to setup all configured services
- */
- void
- retry(void)
- {
- register struct servtab *sep;
-
- for (sep = servtab; sep; sep = sep->se_next)
- if (sep->se_fd == -1)
- setup(sep);
- }
-
- /*
- * setup:
- * open a socket for given port
- */
- void
- setup(register struct servtab *sep)
- {
- int on = 1;
-
- if ((sep->se_fd = socket(AF_INET, sep->se_socktype, 0)) < 0) {
- syslog(LOG_ERR, "%s/%s: socket: %s",
- sep->se_service, sep->se_proto, strerror(errno));
- return;
- }
- #define turnon(fd, opt) \
- setsockopt(fd, SOL_SOCKET, opt, (char *)&on, sizeof (on))
- if (strcmp(sep->se_proto, "tcp") == 0 && (options & SO_DEBUG) &&
- turnon(sep->se_fd, SO_DEBUG) < 0)
- syslog(LOG_ERR, "setsockopt (SO_DEBUG): %s", strerror(errno));
- if (turnon(sep->se_fd, SO_REUSEADDR) < 0)
- syslog(LOG_ERR, "setsockopt (SO_REUSEADDR): %s", strerror(errno));
- #undef turnon
- if (bind(sep->se_fd, (struct sockaddr *)&sep->se_ctrladdr,
- sizeof (sep->se_ctrladdr)) < 0) {
- syslog(LOG_ERR, "%s/%s: bind: %s",
- sep->se_service, sep->se_proto, strerror(errno));
- (void) CloseSocket(sep->se_fd);
- sep->se_fd = -1;
- askalarm(RETRYTIME);
- return;
- }
- if (sep->se_socktype == SOCK_STREAM)
- listen(sep->se_fd, 10);
- FD_SET(sep->se_fd, &allsock);
- nsock++;
- if (sep->se_fd > maxsock)
- maxsock = sep->se_fd;
- }
-
- /*
- * enter:
- * Allocate a new server entry
- */
- struct servtab *
- enter(struct servtab *cp)
- {
- register struct servtab *sep;
-
- sep = (struct servtab *)malloc(sizeof (*sep));
- if (sep == (struct servtab *)0) {
- syslog(LOG_ERR, "Out of memory.");
- exit(20);
- }
- *sep = *cp;
- sep->se_fd = -1;
- sep->se_next = servtab;
- servtab = sep;
-
- return (sep);
- }
-
- /*
- * print_service:
- * Dump relevant information to stderr
- */
- void
- print_service(char *action, struct servtab *sep)
- {
- fprintf(stderr, "%s: %s proto=%s, "
- "wait=%ld, user=%s builtin=0x%lx server=%s\n",
- action, sep->se_service, sep->se_proto,
- sep->se_wait, sep->se_user, (int)sep->se_bi, sep->se_server);
- }
-
-
- /*
- * Functions to read configuration file
- */
-
- BPTR fconfig = NULL;
- long linecnt = 0;
- struct servtab serv;
- #define LINEBUFLEN 1024
- char *linbuf = NULL;
- struct CSource line = { 0, 0, 0 };
- struct RDArgs *largs = NULL;
-
- void logdoserror(const char *banner);
- struct CSource * nextline(BPTR fh);
-
- int
- setconfig(void)
- {
- linecnt = 0;
-
- if (!linbuf)
- linbuf = malloc(LINEBUFLEN);
-
- if (!largs)
- largs = AllocDosObject(DOS_RDARGS, NULL);
-
- if (fconfig != NULL) {
- Seek(fconfig, 0L, OFFSET_BEGINNING);
- } else {
- fconfig = Open(CONFIG, MODE_OLDFILE);
- if (!fconfig) logdoserror("setconfig");
- }
- return (fconfig != NULL && linbuf != NULL && largs != NULL);
- }
-
- void
- endconfig(void)
- {
- if (fconfig) {
- (void) Close(fconfig);
- fconfig = NULL;
- }
- #if 0
- if (linbuf) {
- free(linbuf);
- linbuf = NULL;
- }
- #endif
- if (largs) {
- FreeDosObject(DOS_RDARGS, largs);
- largs = NULL;
- }
- }
-
- struct servtab *
- getconfigent(void)
- {
- register struct servtab *sep = &serv;
- struct CSource *cp;
-
- more:
- while ((cp = nextline(fconfig)) &&
- (cp->CS_Buffer[0] == '#' || cp->CS_Buffer[0] == ';'))
- ;
- if (cp == NULL)
- return NULL;
-
- {
- short len, i, item;
- char *old, *new;
- UBYTE *argv[MAXARGS];
- UBYTE argbuf[LINEBUFLEN];
-
- /* Parse line */
- for (len = i = 0; i < MAXARGS - 1; i++) {
- argv[i] = argbuf + len;
- item = (short)ReadItem(argbuf + len, sizeof(argbuf) - len, cp);
- if (item < 0) {
- logdoserror("ReadItem");
- return NULL;
- } else if (item == ITEM_NOTHING) {
- for (; i < MAXARGS; i++) {
- argv[i] = " ";
- len += 2;
- }
- } else {
- len += strlen(argv[i]) + 1;
- }
- }
- if (i == MAXARGS - 1) {
- argv[i] = cp->CS_Buffer + cp->CS_CurChr;
- len += strlen(argv[i]) + 1;
- }
-
- sep->se_socktype = FindArg(TYPETEMPLATE, (STRPTR)argv[socket_type]) + 1;
- if (sep->se_socktype == 0)
- sep->se_socktype = DMTYPE_UNKNOWN;
-
- switch (FindArg(WAITTEMPLATE, (STRPTR)argv[wait])) {
- case -1:
- /* A error message might be cool */
- case 0:
- sep->se_wait = DONT_WAIT;
- break;
- case 1:
- sep->se_wait = DO_WAIT;
- break;
- }
-
- new = malloc(len);
- if (!new) {
- SetIoErr(ERROR_NO_FREE_STORE);
- logdoserror("getconfigent");
- return NULL;
- }
-
- sep->se_service = new;
- old = (char *)argv[service]; while (*new++ = *old++);
- sep->se_proto = new;
- old = (char *)argv[protocol]; while (*new++ = *old++);
- sep->se_user = new;
- old = (char *)argv[user]; while (*new++ = *old++);
- sep->se_server = new;
- old = (char *)argv[server]; while (*new++ = *old++);
- sep->se_argv0 = new;
- old = (char *)argv[cmdname]; while (*new++ = *old++);
- sep->se_argv = new;
- old = (char *)argv[arguments]; while (*new++ = *old++);
- /* An empty command line can cause a guru with SASC startup code */
- if (sep->se_argv[0] == '\0')
- sep->se_argv = " ";
- }
-
- if (strcmp(sep->se_server, "internal") == 0) {
- register struct biltin *bi;
-
- for (bi = biltins; bi->bi_service; bi++)
- if (bi->bi_socktype == sep->se_socktype &&
- strcmp(bi->bi_service, sep->se_service) == 0)
- break;
- if (bi->bi_service == 0) {
- syslog(LOG_ERR, "inetd: internal service %s unknown\n", sep->se_service);
- free(sep->se_service);
- goto more;
- }
- sep->se_bi = bi;
- sep->se_wait = bi->bi_wait;
- } else
- sep->se_bi = NULL;
-
- return (sep);
- }
-
- void
- freeconfig(register struct servtab *cp)
- {
- if (cp->se_service)
- free(cp->se_service);
- }
-
- /*
- * nextline
- * get a CSource string containing next line
- */
- struct CSource *
- nextline(BPTR fh)
- {
- size_t len = line.CS_Length = 0;
- UBYTE *buffer = line.CS_Buffer = linbuf;
-
- line.CS_CurChr = 0;
-
- for (;;) {
- linecnt++;
- if (FGets(fh, buffer + len, LINEBUFLEN - len - 1) == NULL) {
- if (IoErr()) {
- logdoserror("nextline");
- return NULL;
- }
- if (len == 0)
- return NULL;
- }
-
- len += strlen(buffer + len);
- line.CS_Length = len;
-
- /* a long line ? */
- if (len == LINEBUFLEN - 1 && buffer[LINEBUFLEN - 2] != '\n') {
- if (buffer[0] != '#') {
- SetIoErr(ERROR_LINE_TOO_LONG);
- logdoserror("nextline");
- return NULL;
- } else {
- /* A kludge for LONG comment lines */
- len = 1;
- linecnt--;
- continue;
- }
- }
-
- /* Check for a continued line */
- if (len > 1 && buffer[len - 2] != '+') {
- return &line;
- } else {
- /* current line continues */
- if (len > 2)
- len -= 2;
- else
- len = 0;
- }
- }
- }
-
- /*
- * logdoserror
- * add the last DOS error into AmiTCP/IP log
- */
- void
- logdoserror(const char *banner)
- {
- LONG code = IoErr();
-
- if (linbuf && Fault(code, (UBYTE *)banner, linbuf, LINEBUFLEN)) {
- syslog(LOG_ERR, "inetd %s at line %ld\n", linbuf, linecnt);
- } else {
- syslog(LOG_ERR, "inetd %s: unknown DOS error %ld at line %ld\n",
- code, linecnt);
- }
- }
-
-
- /*
- * Internet services provided internally by inetd:
- */
-
- /* Echo service -- echo data back */
- int
- echo_stream(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[BUFSIZE];
- int i;
-
- while ((i = recv(s, buffer, sizeof(buffer), 0)) > 0 &&
- send(s, buffer, i, 0) > 0)
- ;
- return 0;
- }
-
- /* Echo service -- echo data back */
- int
- echo_dg(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[BUFSIZE];
- long i, size;
- struct sockaddr sa;
-
- size = sizeof(sa);
- if ((i = recvfrom(s, buffer, sizeof(buffer), 0, &sa, &size)) < 0)
- return 0;
- (void) sendto(s, buffer, i, 0, &sa, sizeof(sa));
-
- return 0;
- }
-
- /* Discard service -- ignore data */
- int
- discard_stream(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[BUFSIZE];
-
- while (recv(s, buffer, sizeof(buffer), 0) > 0)
- ;
-
- return 0;
- }
-
-
- /* Discard service -- ignore data */
- int
- discard_dg(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[BUFSIZE];
-
- (void) recv(s, buffer, sizeof(buffer), 0);
-
- return 0;
- }
-
- #include <ctype.h>
- #define LINESIZ 72
- char ring[128];
- char *endring = NULL;
-
- void
- initring(void)
- {
- register int i;
-
- endring = ring;
-
- for (i = 0; i <= 128; ++i)
- if (isprint(i))
- *endring++ = i;
- }
-
- /* Character generator */
- chargen_stream(void *SocketBase, int s, struct servtab *sep)
- {
- register char *rs;
- long len;
- char text[LINESIZ+2];
-
- if (!endring) {
- initring();
- rs = ring;
- }
-
- text[LINESIZ] = '\r';
- text[LINESIZ + 1] = '\n';
- for (rs = ring;;) {
- if ((len = endring - rs) >= LINESIZ)
- bcopy(rs, text, LINESIZ);
- else {
- bcopy(rs, text, len);
- bcopy(ring, text + len, LINESIZ - len);
- }
- if (++rs == endring)
- rs = ring;
- if (send(s, text, sizeof(text), 0) != sizeof(text))
- break;
- }
-
- return 0;
- }
-
- /* Character generator */
- chargen_dg(void *SocketBase, int s, struct servtab *sep)
- {
- struct sockaddr sa;
- static char *rs;
- long len, size;
- char text[LINESIZ+2];
-
- if (endring == 0) {
- initring();
- rs = ring;
- }
-
- size = sizeof(sa);
- if (recvfrom(s, text, sizeof(text), 0, &sa, &size) < 0)
- return 0;
-
- if ((len = endring - rs) >= LINESIZ)
- bcopy(rs, text, LINESIZ);
- else {
- bcopy(rs, text, len);
- bcopy(ring, text + len, LINESIZ - len);
- }
- if (++rs == endring)
- rs = ring;
- text[LINESIZ] = '\r';
- text[LINESIZ + 1] = '\n';
- (void) sendto(s, text, sizeof(text), 0, &sa, sizeof(sa));
-
- return 0;
- }
-
- /*
- * Return a machine readable date and time, in the form of the
- * number of seconds since midnight, Jan 1, 1900. Since gettimeofday
- * returns the number of seconds since midnight, Jan 1, 1970,
- * we must add 2208988800 seconds to this figure to make up for
- * some seventy years Bell Labs was asleep.
- */
-
- long
- machtime(void)
- {
- struct timeval tv;
-
- if (gettimeofday(&tv, (struct timezone *)0) < 0) {
- /* fprintf(stderr, "Unable to get time of day\n"); */
- return (0L);
- }
- return (htonl((long)tv.tv_sec + 2208988800));
- }
-
- int
- machtime_stream(void *SocketBase, int s, struct servtab *sep)
- {
- long result;
-
- result = machtime();
- (void) send(s, (char *) &result, sizeof(result), 0);
-
- return 0;
- }
-
- machtime_dg(void *SocketBase, int s, struct servtab *sep)
- {
- long result;
- struct sockaddr sa;
- long size;
-
- size = sizeof(sa);
- if (recvfrom(s, (char *)&result, sizeof(result), 0, &sa, &size) < 0)
- return 0;
- result = machtime();
- (void) sendto(s, (char *) &result, sizeof(result), 0, &sa, sizeof(sa));
-
- return 0;
- }
-
- /* Return human-readable time of day */
- int
- daytime_stream(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[256];
- time_t time(), clock;
- char *ctime();
-
- clock = time((time_t *) 0);
-
- (void) strncpy(buffer, ctime(&clock), 24); buffer[24] = '\0';
- (void) strcat(buffer, "\r\n");
- (void) send(s, buffer, strlen(buffer), 0);
- return 0;
- }
-
- /* Return human-readable time of day */
- int
- daytime_dg(void *SocketBase, int s, struct servtab *sep)
- {
- char buffer[256];
- time_t time(), clock;
- struct sockaddr sa;
- long size;
-
- clock = time((time_t *) 0);
-
- size = sizeof(sa);
- if (recvfrom(s, buffer, sizeof(buffer), 0, &sa, &size) < 0)
- return 0;
-
- (void) strncpy(buffer, ctime(&clock), 24); buffer[24] = '\0';
- (void) strcat(buffer, "\r\n");
- (void) sendto(s, buffer, strlen(buffer), 0, &sa, sizeof(sa));
- return 0;
- }
-
- /*
- * Internal server stub
- */
- LONG SAVEDS start_builtin(void)
- {
- struct Process *me = (struct Process *)FindTask(0L);
- struct DaemonMessage *dm = (struct DaemonMessage *)me->pr_ExitData;
- LONG retval = DERR_LIB;
- void *SocketBase;
-
- if (SocketBase = OpenLibrary("bsdsocket.library", 2L)) {
- struct servtab *sep = (struct servtab *)dm->dm_Retval;
- int s = ObtainSocket(dm->dm_Id, AF_INET, sep->se_socktype, 0);
- if (s != -1) {
- dm->dm_Id = -1;
- retval = (*sep->se_bi->bi_fn)(SocketBase, s, sep);
- } else {
- retval = DERR_OBTAIN;
- }
- CloseLibrary(SocketBase);
- }
-
- return retval;
- }
-
- /*
- * setproctitle:
- * set the process title
- */
- void
- setproctitle(char *a, int s)
- {
- #ifdef notyet
- int size;
- register char *cp;
- struct sockaddr_in sin;
- char buf[80];
- struct CSource csbuf;
-
- csbuf.CS_Buffer = buf;
- csbuf.CS_Length = sizeof(buf) - 1;
- csbuf.CS_CurChr = 0;
-
- size = sizeof(sin);
- if (getpeername(s, (struct sockaddr *)&sin, &size) == 0) {
- struct MemList ml, *nml;
-
- (void) csprintf(csbuf, "%s [%s]", a, inet_ntoa(sin.sin_addr));
-
- ml.ml_NumEntries = 1;
- ml.ml_ME[0].me_Reqs = MEMF_PUBLIC;
- ml.ml_ME[0].me_Length = csbuf.CS_CurChr + 1;
-
- /* A memlist entry is needed for automatic resource deallocation */
- if ((LONG)(nml = AllocEntry(&ml)) > 0) {
- struct Task *me = FindTask(NULL);
-
- cp = nml->ml_ME[1].me_Addr;
- buf[csbuf.CS_CurChr] = '\0';
- strcpy(cp, buf);
-
- /* Old name is pointer to se_service, so there is no need to free it */
- me->tc_Node.ln_Name = cp;
- Forbid();
- AddHead(&me->tc_MemEntry, nml);
- Permit();
- }
- }
- #endif
- }
-
- /*
- * proctitle:
- * allocate a new process title
- */
- UBYTE *
- proctitle(char *a, int s)
- {
- long size;
- struct sockaddr_in sin;
- register char *cp;
- char buf[80];
- struct CSource csbuf;
-
- csbuf.CS_Buffer = buf;
- csbuf.CS_Length = sizeof(buf) - 1;
- csbuf.CS_CurChr = 0;
-
- size = sizeof(sin);
- if (getpeername(s, (struct sockaddr *)&sin, &size) == 0) {
- (void) csprintf(&csbuf, "%s [%s]", a, inet_ntoa(sin.sin_addr));
- } else {
- (void) csprintf(&csbuf, "%s", a);
- }
- if (cp = AllocVec(csbuf.CS_CurChr + 1, MEMF_PUBLIC)) {
- buf[csbuf.CS_CurChr] = '\0';
- strcpy(cp, buf);
- }
- return cp;
- }
-
- #if __SASC
- #define SysBase (*(struct ExecBase**)4)
- /*
- * Amiga process catcher
- */
- ASM VOID
- exitcode(REG(d0) LONG status, REG(d1) LONG exitmessage)
- {
- ((struct DaemonMessage *)exitmessage)->dm_Retval = status;
- ReplyMsg((struct Message *)exitmessage);
- }
-
- void
- exitcode_end(void)
- {
- }
- #undef SysBase
-
- #define exitcode_len (((char *)exitcode_end)-((char *)exitcode))
- #else
- #error Unsupported compiler
- #endif
-
- void *WindowPtr = NULL;
-
- /*
- * Initialize Amiga Specific Features
- */
- void
- amigainit(void)
- {
- struct DaemonPort *dp, *dpo;
- BYTE msgbit;
- struct Process *me = (struct Process *)FindTask(NULL);
- int old_is_alive = 0;
-
- atexit(amigadeinit);
-
- /* Remove requesters */
- WindowPtr = me->pr_WindowPtr;
- me->pr_WindowPtr = (void *)-1L;
-
- if ((msgbit = AllocSignal(-1)) == -1) {
- (void)fprintf(stderr, "inetd: no free signals\n");
- exit(2);
- }
-
- /* Allocate a global port for DaemonMessages */
- if (dp = AllocVec(sizeof(*dp) + exitcode_len + sizeof(DAEMONPORTNAME),
- MEMF_CLEAR|MEMF_PUBLIC)) {
- dp->dp_Port.mp_Node.ln_Type = NT_MSGPORT;
- dp->dp_Port.mp_SigTask = me;
- dp->dp_Port.mp_Flags = PA_SIGNAL;
- dp->dp_Port.mp_SigBit = msgbit;
- memcpy(dp->dp_ExitCode = (char *)(dp + 1), exitcode, exitcode_len);
- memcpy(dp->dp_Port.mp_Node.ln_Name = exitcode_len + (UBYTE *)(dp + 1),
- DAEMONPORTNAME, sizeof(DAEMONPORTNAME));
- /* Flush copied function */
- CacheClearE(dp->dp_ExitCode, exitcode_len, CACRF_ClearI);
- }
-
- Forbid();
-
- dpo = (struct DaemonPort*)FindPort(DAEMONPORTNAME);
- if (!dpo) {
- if (dp) AddPort(dp);
- } else {
- FreeVec(dp);
- dp = dpo;
- if (dpo->dp_Port.mp_SigTask == NULL) {
- dpo->dp_Port.mp_SigTask = me;
- dpo->dp_Port.mp_SigBit = msgbit;
- dpo->dp_Port.mp_Flags = PA_SIGNAL;
- SetSignal(1 << msgbit, 1 << msgbit); /* check old messages */
- } else {
- old_is_alive = 1;
- }
- }
- Permit();
-
- if (old_is_alive || !dp) {
- FreeSignal(msgbit);
- (void)fprintf(stderr, old_is_alive ?
- "inetd: already exists\n" :
- "inetd: memory exhausted\n");
- exit(2);
- }
-
- dport = dp;
-
- if (!(tport = CreateMsgPort())) {
- (void)fprintf(stderr, "inetd: could not create message port\n");
- exit(2);
- }
- if (!(tmsg = CreateIORequest(tport, sizeof(*tmsg)))){
- (void)fprintf(stderr, "inetd: could not create timer message\n");
- exit(2);
- }
-
- tmsg->tr_node.io_Message.mn_Node.ln_Type = NT_UNKNOWN;
-
- if (OpenDevice(TIMERNAME, UNIT_MICROHZ,
- (struct IORequest *)tmsg, 0)) {
- (void)fprintf(stderr, "inetd: could not open %s\n", TIMERNAME);
- exit(2);
- }
- timer_is_open = 1;
- }
-
- /*
- * Deinitialize Amiga Specific stuff
- */
- void
- amigadeinit(void)
- {
- struct Process *me = (struct Process *)FindTask(NULL);
-
- /* Resume requesters for this process */
- me->pr_WindowPtr = WindowPtr;
-
- if (tmsg && timer_is_open) {
- if (tmsg->tr_node.io_Message.mn_Node.ln_Type != NT_UNKNOWN
- && !CheckIO(tmsg)) {
- AbortIO(tmsg);
- WaitIO(tmsg);
- }
- }
- if (timer_is_open) {
- CloseDevice(tmsg);
- timer_is_open = 0;
- }
- if (tmsg) {
- DeleteIORequest(tmsg);
- }
- if (tport) {
- DeleteMsgPort(tport);
- }
-
- if (dport) {
- BYTE sigbit;
- int i;
-
- /* Try to kill all our builtin children */
- for (i = builtins_started - 1; i >= 0; i--)
- Signal((struct Task*)ptable[i], SIGBREAKF_CTRL_C);
- /* Close all sockets */
- for (i = NOFILE - 1; i >= 0; i--) {
- CloseSocket(i);
- }
- /* Wait until all childs are terminated */
- while (builtins_started > 0) {
- WaitPort(dport);
- reapchild();
- }
-
- Forbid();
- sigbit = dport->dp_Port.mp_SigBit;
- dport->dp_Port.mp_Flags = PA_IGNORE;
- dport->dp_Port.mp_SigBit = (UBYTE)-1; /* braindead */
- dport->dp_Port.mp_SigTask = NULL;
- FreeSignal(sigbit);
- Permit();
- }
- }
-
- /*
- * Generic printing functions
- */
- void ASM
- stuffchar(REG(d0) char ch, REG(a3) struct CSource * sc)
- {
- if (sc->CS_CurChr < sc->CS_Length
- && (sc->CS_Buffer[sc->CS_CurChr] = ch))
- sc->CS_CurChr++;
- }
-
- static ULONG
- csprintf(struct CSource *buf, const char *fmt, ...)
- {
- ULONG start = buf->CS_CurChr;
- va_list ap;
-
- if (buf->CS_Length && buf->CS_CurChr < buf->CS_Length) {
- va_start(ap, fmt);
- RawDoFmt((STRPTR)fmt, ap, stuffchar, buf);
- va_end(ap);
-
- if (buf->CS_CurChr == buf->CS_Length) {
- buf->CS_CurChr--; /* must NUL terminate */
- }
- buf->CS_Buffer[buf->CS_CurChr] = '\0';
-
- return buf->CS_CurChr - start;
- } else {
- /* A pathological case */
- return 0;
- }
- }
-