122440Sdist /* 222440Sdist * Copyright (c) 1983 Regents of the University of California. 3*34203Sbostic * All rights reserved. 4*34203Sbostic * 5*34203Sbostic * Redistribution and use in source and binary forms are permitted 6*34203Sbostic * provided that this notice is preserved and that due credit is given 7*34203Sbostic * to the University of California at Berkeley. The name of the University 8*34203Sbostic * may not be used to endorse or promote products derived from this 9*34203Sbostic * software without specific prior written permission. This software 10*34203Sbostic * is provided ``as is'' without express or implied warranty. 1122440Sdist */ 1222440Sdist 1313955Ssam #ifndef lint 14*34203Sbostic static char sccsid[] = "@(#)startdaemon.c 5.2 (Berkeley) 05/05/88"; 15*34203Sbostic #endif /* not lint */ 1613955Ssam 1712114Sralph /* 1812114Sralph * Tell the printer daemon that there are new files in the spool directory. 1912114Sralph */ 2012114Sralph 2113443Sralph #include <stdio.h> 2213443Sralph #include <sys/types.h> 2313443Sralph #include <sys/socket.h> 2413443Sralph #include <sys/un.h> 2513443Sralph #include "lp.local.h" 2612114Sralph 2713443Sralph startdaemon(printer) 2813443Sralph char *printer; 2912114Sralph { 3013443Sralph struct sockaddr_un sun; 3113443Sralph register int s, n; 3212114Sralph char buf[BUFSIZ]; 3312114Sralph 3413443Sralph s = socket(AF_UNIX, SOCK_STREAM, 0); 3513443Sralph if (s < 0) { 3613443Sralph perr("socket"); 3712114Sralph return(0); 3812743Sralph } 3913443Sralph sun.sun_family = AF_UNIX; 4013443Sralph strcpy(sun.sun_path, SOCKETNAME); 4113443Sralph if (connect(s, &sun, strlen(sun.sun_path) + 2) < 0) { 4213443Sralph perr("connect"); 4313443Sralph (void) close(s); 4413443Sralph return(0); 4513443Sralph } 4612114Sralph (void) sprintf(buf, "\1%s\n", printer); 4713443Sralph n = strlen(buf); 4813443Sralph if (write(s, buf, n) != n) { 4913443Sralph perr("write"); 5013443Sralph (void) close(s); 5112114Sralph return(0); 5212114Sralph } 5313443Sralph if (read(s, buf, 1) == 1) { 5413443Sralph if (buf[0] == '\0') { /* everything is OK */ 5513443Sralph (void) close(s); 5613443Sralph return(1); 5713443Sralph } 5813443Sralph putchar(buf[0]); 5912114Sralph } 6013443Sralph while ((n = read(s, buf, sizeof(buf))) > 0) 6113443Sralph fwrite(buf, 1, n, stdout); 6213443Sralph (void) close(s); 6313443Sralph return(0); 6412114Sralph } 6512743Sralph 6612743Sralph static 6713443Sralph perr(msg) 6813443Sralph char *msg; 6912743Sralph { 7013443Sralph extern char *name; 7112743Sralph extern int sys_nerr; 7212743Sralph extern char *sys_errlist[]; 7313443Sralph extern int errno; 7412743Sralph 7513443Sralph printf("%s: %s: ", name, msg); 7612743Sralph fputs(errno < sys_nerr ? sys_errlist[errno] : "Unknown error" , stdout); 7712743Sralph putchar('\n'); 7812743Sralph } 79