don't check remote on local printer

[unix-history] / usr / src / usr.sbin / lpr / common_source / startdaemon.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
static char sccsid[] = "@(#)startdaemon.c       5.1 (Berkeley) %G%";
#endif not lint

/*
* Tell the printer daemon that there are new files in the spool directory.
*/

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "lp.local.h"

startdaemon(printer)
       char *printer;
{
       struct sockaddr_un sun;
       register int s, n;
       char buf[BUFSIZ];

       s = socket(AF_UNIX, SOCK_STREAM, 0);
       if (s < 0) {
               perr("socket");
               return(0);
       }
       sun.sun_family = AF_UNIX;
       strcpy(sun.sun_path, SOCKETNAME);
       if (connect(s, &sun, strlen(sun.sun_path) + 2) < 0) {
               perr("connect");
               (void) close(s);
               return(0);
       }
       (void) sprintf(buf, "\1%s\n", printer);
       n = strlen(buf);
       if (write(s, buf, n) != n) {
               perr("write");
               (void) close(s);
               return(0);
       }
       if (read(s, buf, 1) == 1) {
               if (buf[0] == '\0') {           /* everything is OK */
                       (void) close(s);
                       return(1);
               }
               putchar(buf[0]);
       }
       while ((n = read(s, buf, sizeof(buf))) > 0)
               fwrite(buf, 1, n, stdout);
       (void) close(s);
       return(0);
}

static
perr(msg)
       char *msg;
{
       extern char *name;
       extern int sys_nerr;
       extern char *sys_errlist[];
       extern int errno;

       printf("%s: %s: ", name, msg);
       fputs(errno < sys_nerr ? sys_errlist[errno] : "Unknown error" , stdout);
       putchar('\n');
}