1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 /*static char sccsid[] = "from: @(#)startdaemon.c 5.7 (Berkeley) 3/2/91";*/ 36 static char rcsid[] = "$Id: startdaemon.c,v 1.3 1993/11/10 04:36:04 cgd Exp $"; 37 #endif /* not lint */ 38 39 /* 40 * Tell the printer daemon that there are new files in the spool directory. 41 */ 42 43 #include <sys/types.h> 44 #include <sys/socket.h> 45 #include <sys/un.h> 46 #include <stdio.h> 47 #include "lp.local.h" 48 #include "pathnames.h" 49 50 startdaemon(printer) 51 char *printer; 52 { 53 struct sockaddr_un sun; 54 register int s, n; 55 char buf[BUFSIZ]; 56 static void perr(); 57 58 s = socket(AF_UNIX, SOCK_STREAM, 0); 59 if (s < 0) { 60 perr("socket"); 61 return(0); 62 } 63 bzero(&sun, sizeof(sun)); 64 sun.sun_family = AF_UNIX; 65 strcpy(sun.sun_path, _PATH_SOCKETNAME); 66 if (connect(s, (struct sockaddr *)&sun, strlen(sun.sun_path) + 2) < 0) { 67 perr("connect"); 68 (void) close(s); 69 return(0); 70 } 71 (void) sprintf(buf, "\1%s\n", printer); 72 n = strlen(buf); 73 if (write(s, buf, n) != n) { 74 perr("write"); 75 (void) close(s); 76 return(0); 77 } 78 if (read(s, buf, 1) == 1) { 79 if (buf[0] == '\0') { /* everything is OK */ 80 (void) close(s); 81 return(1); 82 } 83 putchar(buf[0]); 84 } 85 while ((n = read(s, buf, sizeof(buf))) > 0) 86 fwrite(buf, 1, n, stdout); 87 (void) close(s); 88 return(0); 89 } 90 91 static void 92 perr(msg) 93 char *msg; 94 { 95 extern int errno; 96 extern char *name; 97 char *strerror(); 98 99 (void)printf("%s: %s: %s\n", name, msg, strerror(errno)); 100 } 101