home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1988, 1989 Free Software Foundation, Inc.
- This file is part of GNU Make.
-
- GNU Make is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU Make is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Make; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "make.h"
- #include "commands.h"
- #include "customs.h"
- #include <sys/time.h>
-
-
- char *remote_description = "Customs";
-
-
- /* ExportPermit gotten by start_remote_job_p, and used by start_remote_job. */
- static ExportPermit permit;
-
- /* Return nonzero if the next job should be done remotely. */
-
- int
- start_remote_job_p ()
- {
- if (Customs_Host (EXPORT_SAME, &permit) != RPC_SUCCESS)
- return 0;
-
- return !CUSTOMS_FAIL (&permit.addr);
- }
-
- /* Start a remote job running the command in ARGV.
- It gets standard input from STDIN_FD. On failure,
- return nonzero. On success, return zero, and set
- *USED_STDIN to nonzero if it will actually use STDIN_FD,
- zero if not, set *ID_PTR to a unique identification, and
- set *IS_REMOTE to zero if the job is local, nonzero if it
- is remote (meaning *ID_PTR is a process ID). */
-
- int
- start_remote_job (argv, stdin_fd, is_remote, id_ptr, used_stdin)
- char **argv;
- int stdin_fd;
- int *is_remote;
- int *id_ptr;
- int *used_stdin;
- {
- extern char **environ;
- extern int vfork (), execve ();
- char cwd[MAXPATHLEN];
- char waybill[MAX_DATA_SIZE], msg[128];
- struct timeval timeout;
- struct sockaddr_in sin;
- int len;
- int retsock, retport, sock;
- Rpc_Stat status;
- int pid;
-
- /* Find the current directory. */
- if (getwd (cwd) == 0)
- {
- error ("exporting: getwd: %s", cwd);
- return 1;
- }
-
- /* Create the return socket. */
- retsock = Rpc_UdpCreate (True, 0);
- if (retsock < 0)
- {
- error ("exporting: Couldn't create return socket.");
- return 1;
- }
-
- /* Get the return socket's port number. */
- len = sizeof(sin);
- if (getsockname (retsock, (struct sockaddr *) &sin, &len) < 0)
- {
- (void) close (retsock);
- perror_with_name ("exporting: ", "getsockname");
- return 1;
- }
- retport = sin.sin_port;
-
- /* Create the TCP socket for talking to the remote child. */
- sock = Rpc_TcpCreate (False, 0);
-
- /* Create a WayBill to give to the server. */
- len = Customs_MakeWayBill (&permit, cwd, argv[0], argv,
- environ, retport, waybill);
-
- /* Send the request to the server, timing out in 20 seconds. */
- timeout.tv_usec = 0;
- timeout.tv_sec = 20;
- sin.sin_family = AF_INET;
- sin.sin_port = htons (Customs_Port ());
- sin.sin_addr = permit.addr;
- status = Rpc_Call (sock, &sin, (Rpc_Proc) CUSTOMS_IMPORT,
- len, (Rpc_Opaque) waybill,
- sizeof(msg), (Rpc_Opaque) msg,
- 1, &timeout);
- if (status != RPC_SUCCESS)
- {
- (void) close (retsock);
- (void) close (sock);
- error ("exporting: %s", Rpc_ErrorMessage (status));
- return 1;
- }
- else if (msg[0] != 'O' || msg[1] != 'k' || msg[2] != '\0')
- {
- (void) close (retsock);
- (void) close (sock);
- error ("CUSTOMS_IMPORT: %s", msg);
- return 1;
- }
-
- fflush (stdout);
- fflush (stderr);
-
- pid = vfork ();
- if (pid < 0)
- {
- /* The fork failed! */
- perror_with_name ("vfork", "");
- return 1;
- }
- else if (pid == 0)
- {
- /* Child side. Run `export' to handle the connection. */
- static char sock_buf[20], retsock_buf[20], id_buf[20];
- static char *new_argv[6] =
- { "export", "-id", sock_buf, retsock_buf, id_buf, 0 };
-
- /* Set up the arguments. */
- (void) sprintf (sock_buf, "%d", sock);
- (void) sprintf (retsock_buf, "%d", retsock);
- (void) sprintf (id_buf, "%x", permit.id);
-
- /* Run the command. */
- (void) execvp (new_argv[0], new_argv);
- perror_with_name ("execvp: ", new_argv[0]);
- _exit (127);
- }
-
- /* Parent side. Return the `export' process's ID. */
- (void) close (retsock);
- (void) close (sock);
- *is_remote = 0;
- *id_ptr = pid;
- return 0;
- }
-
- /* Get the status of a dead remote child. Block waiting for one to die
- if BLOCK is nonzero. Set *EXIT_CODE_PTR to the exit status, *SIGNAL_PTR
- to the termination signal or zero if it exited normally, and *COREDUMP_PTR
- nonzero if it dumped core. Return the ID of the child that died,
- 0 if we would have to block and !BLOCK, or < 0 if there were none. */
-
- int
- remote_status (exit_code_ptr, signal_ptr, coredump_ptr, block)
- int *exit_code_ptr, *signal_ptr, *coredump_ptr;
- int block;
- {
- return -1;
- }
-
- /* Block asynchronous notification of remote child death.
- If this notification is done by raising the child termination
- signal, do not block that signal. */
- void
- block_remote_children ()
- {
- return;
- }
-
- /* Restore asynchronous notification of remote child death.
- If this is done by raising the child termination signal,
- do not unblock that signal. */
- void
- unblock_remote_children ()
- {
- return;
- }
-
- /* Send signal SIG to child ID. Return 0 if successful, -1 if not. */
- int
- remote_kill (id, sig)
- int id;
- int sig;
- {
- return -1;
- }
-