/* $OpenBSD: server.c,v 1.26 2005/12/24 19:07:52 xsa Exp $ */ /* * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org> * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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/types.h> #include <sys/stat.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include "cvs.h" #include "log.h" #include "proto.h" /* argument vector built by the `Argument' and `Argumentx' requests */ char **cvs_args; u_int cvs_nbarg = 0; u_int cvs_utf8ok = 0; u_int cvs_case = 0; struct cvs_cmd cvs_cmd_server = { CVS_OP_SERVER, 0, "server", { }, "Server mode", "", "", NULL, 0, NULL, NULL, NULL, NULL, NULL, NULL, 0 }; char cvs_server_tmpdir[MAXPATHLEN]; /* * cvs_server() * * Implement the `cvs server' command. As opposed to the general method of * CVS client/server implementation, the cvs program merely acts as a * redirector to the cvs daemon for most of the tasks. * * The `cvs server' command is only used on the server side of a remote * cvs command. With this command, the cvs program starts listening on * standard input for CVS protocol requests. */ int cvs_server(int argc, char **argv) { int l, ret; size_t len; char reqbuf[512]; if (argc != 1) return (CVS_EX_USAGE); /* make sure standard in and standard out are line-buffered */ (void)setvbuf(stdin, NULL, _IOLBF, (size_t)0); (void)setvbuf(stdout, NULL, _IOLBF, (size_t)0); /* create the temporary directory */ l = snprintf(cvs_server_tmpdir, sizeof(cvs_server_tmpdir), "%s/cvs-serv%d", cvs_tmpdir, getpid()); if (l == -1 || l >= (int)sizeof(cvs_server_tmpdir)) { errno = ENAMETOOLONG; fatal("cvs_server: tmpdir path too long: `%s'", cvs_server_tmpdir); } if (mkdir(cvs_server_tmpdir, 0700) == -1) fatal("cvs_server: mkdir: `%s': %s", cvs_server_tmpdir, strerror(errno)); cvs_chdir(cvs_server_tmpdir, 1); for (;;) { if (fgets(reqbuf, (int)sizeof(reqbuf), stdin) == NULL) { if (feof(stdin)) break; else if (ferror(stdin)) { (void)cvs_rmdir(cvs_server_tmpdir); fatal("cvs_server: fgets failed"); } } len = strlen(reqbuf); if (len == 0) continue; else if (reqbuf[len - 1] != '\n') { (void)cvs_rmdir(cvs_server_tmpdir); fatal("cvs_server: truncated request"); } reqbuf[--len] = '\0'; cvs_req_handle(reqbuf); } /* cleanup the temporary tree */ ret = cvs_rmdir(cvs_server_tmpdir); return (ret); }