1 /* $OpenBSD: server.c,v 1.5 2004/08/02 17:35:37 jfb 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 44 /* argument vector built by the `Argument' and `Argumentx' requests */ 45 char **cvs_args; 46 u_int cvs_nbarg = 0; 47 48 u_int cvs_utf8ok = 0; 49 u_int cvs_case = 0; 50 51 52 53 /* 54 * cvs_server() 55 * 56 * Implement the `cvs server' command. As opposed to the general method of 57 * CVS client/server implementation, the cvs program merely acts as a 58 * redirector to the cvs daemon for most of the tasks. 59 * 60 * The `cvs server' command is only used on the server side of a remote 61 * cvs command. With this command, the cvs program starts listening on 62 * standard input for CVS protocol requests. 63 */ 64 65 int 66 cvs_server(int argc, char **argv) 67 { 68 size_t len; 69 char reqbuf[128]; 70 71 if (argc != 1) { 72 return (EX_USAGE); 73 } 74 75 /* make sure standard in and standard out are line-buffered */ 76 (void)setvbuf(stdin, NULL, _IOLBF, 0); 77 (void)setvbuf(stdout, NULL, _IOLBF, 0); 78 79 if (cvs_sock_connect(CVSD_SOCK_PATH) < 0) { 80 cvs_log(LP_ERR, "failed to connect to CVS server socket"); 81 return (-1); 82 } 83 84 85 for (;;) { 86 if (fgets(reqbuf, sizeof(reqbuf), stdin) == NULL) { 87 if (feof(stdin)) 88 break; 89 else if (ferror(stdin)) 90 return (EX_DATAERR); 91 } 92 93 len = strlen(reqbuf); 94 if (len == 0) 95 continue; 96 else if (reqbuf[len - 1] != '\n') { 97 cvs_log(LP_ERR, "truncated request"); 98 return (EX_DATAERR); 99 } 100 reqbuf[--len] = '\0'; 101 102 cvs_req_handle(reqbuf); 103 104 105 } 106 107 cvs_sock_disconnect(); 108 109 return (0); 110 } 111