1 /* $OpenBSD: server.c,v 1.6 2004/12/07 17:10:56 tedu Exp $ */ 2 /* 3 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 16 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 17 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 18 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/types.h> 28 29 #include <stdlib.h> 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <errno.h> 33 #include <string.h> 34 #include <paths.h> 35 #include <sysexits.h> 36 37 #include "cvs.h" 38 #include "log.h" 39 #include "sock.h" 40 #include "proto.h" 41 42 43 /* argument vector built by the `Argument' and `Argumentx' requests */ 44 char **cvs_args; 45 u_int cvs_nbarg = 0; 46 u_int cvs_utf8ok = 0; 47 u_int cvs_case = 0; 48 49 /* 50 * cvs_server() 51 * 52 * Implement the `cvs server' command. As opposed to the general method of 53 * CVS client/server implementation, the cvs program merely acts as a 54 * redirector to the cvs daemon for most of the tasks. 55 * 56 * The `cvs server' command is only used on the server side of a remote 57 * cvs command. With this command, the cvs program starts listening on 58 * standard input for CVS protocol requests. 59 */ 60 int 61 cvs_server(int argc, char **argv) 62 { 63 size_t len; 64 char reqbuf[128]; 65 66 if (argc != 1) { 67 return (EX_USAGE); 68 } 69 70 /* make sure standard in and standard out are line-buffered */ 71 (void)setvbuf(stdin, NULL, _IOLBF, 0); 72 (void)setvbuf(stdout, NULL, _IOLBF, 0); 73 74 if (cvs_sock_connect(CVSD_SOCK_PATH) < 0) { 75 cvs_log(LP_ERR, "failed to connect to CVS server socket"); 76 return (-1); 77 } 78 79 80 for (;;) { 81 if (fgets(reqbuf, sizeof(reqbuf), stdin) == NULL) { 82 if (feof(stdin)) 83 break; 84 else if (ferror(stdin)) 85 return (EX_DATAERR); 86 } 87 88 len = strlen(reqbuf); 89 if (len == 0) 90 continue; 91 else if (reqbuf[len - 1] != '\n') { 92 cvs_log(LP_ERR, "truncated request"); 93 return (EX_DATAERR); 94 } 95 reqbuf[--len] = '\0'; 96 97 cvs_req_handle(reqbuf); 98 99 100 } 101 102 cvs_sock_disconnect(); 103 104 return (0); 105 } 106