17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*23310c00Skeerthi * Common Development and Distribution License (the "License"). 6*23310c00Skeerthi * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate 227c478bd9Sstevel@tonic-gate /* 23*23310c00Skeerthi * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <stdio.h> 307c478bd9Sstevel@tonic-gate #include <stdlib.h> 317c478bd9Sstevel@tonic-gate #include <stdarg.h> 327c478bd9Sstevel@tonic-gate #include <libintl.h> 337c478bd9Sstevel@tonic-gate #include <signal.h> 347c478bd9Sstevel@tonic-gate #include <errno.h> 357c478bd9Sstevel@tonic-gate #include <fcntl.h> 367c478bd9Sstevel@tonic-gate #include <unistd.h> 377c478bd9Sstevel@tonic-gate #include <string.h> 387c478bd9Sstevel@tonic-gate #include <strings.h> 397c478bd9Sstevel@tonic-gate #include <syslog.h> 407c478bd9Sstevel@tonic-gate #include <sys/types.h> 417c478bd9Sstevel@tonic-gate #include <sys/socket.h> 427c478bd9Sstevel@tonic-gate #include <sys/file.h> 437c478bd9Sstevel@tonic-gate #include <netinet/in.h> 447c478bd9Sstevel@tonic-gate #include "netpr.h" 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate #define TIMEOUT 1 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate static int netpr_send_message(int, char *, ...); 497c478bd9Sstevel@tonic-gate static int xfer_cfAfile(int, char *, char *, uint); 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate int 527c478bd9Sstevel@tonic-gate bsd_print(int sockfd, caddr_t pa, np_bsdjob_t * bsdjob) 537c478bd9Sstevel@tonic-gate { 547c478bd9Sstevel@tonic-gate int filesize; 557c478bd9Sstevel@tonic-gate int xfer; 567c478bd9Sstevel@tonic-gate int net; 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "bsd_print"); 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate filesize = bsdjob->np_data->np_data_size; 617c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "filesize is %d", filesize); 627c478bd9Sstevel@tonic-gate 637c478bd9Sstevel@tonic-gate 647c478bd9Sstevel@tonic-gate if (netpr_send_message(sockfd, "%c%s\n", XFER_REQUEST, 657c478bd9Sstevel@tonic-gate bsdjob->np_printer) != 0) { 667c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_SEND_RESPONSE); 677c478bd9Sstevel@tonic-gate } 687c478bd9Sstevel@tonic-gate 697c478bd9Sstevel@tonic-gate /* 707c478bd9Sstevel@tonic-gate * control file 717c478bd9Sstevel@tonic-gate */ 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate if (bsdjob->np_print_order == CONTROL_FIRST) { 747c478bd9Sstevel@tonic-gate if ((xfer_cfAfile(sockfd, bsdjob->np_cfAfile, 757c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilename, 767c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilesize)) != 0) { 777c478bd9Sstevel@tonic-gate (void) fprintf(stderr, 787c478bd9Sstevel@tonic-gate gettext("Netpr: Error sending control file\n")); 797c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "Error sending control file"); 807c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_UNKNOWN); 817c478bd9Sstevel@tonic-gate 827c478bd9Sstevel@tonic-gate } 837c478bd9Sstevel@tonic-gate } 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate /* send msg - get ready for transfer */ 867c478bd9Sstevel@tonic-gate 877c478bd9Sstevel@tonic-gate if ((netpr_send_message(sockfd, "%c%d %s\n", XFER_DATA, filesize, 887c478bd9Sstevel@tonic-gate bsdjob->np_data->np_dfAfilename)) != 0) { 897c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_SEND_RESPONSE); 907c478bd9Sstevel@tonic-gate } 917c478bd9Sstevel@tonic-gate 927c478bd9Sstevel@tonic-gate /* 937c478bd9Sstevel@tonic-gate * send the file 947c478bd9Sstevel@tonic-gate */ 957c478bd9Sstevel@tonic-gate 967c478bd9Sstevel@tonic-gate if ((xfer = xfer_file(sockfd, pa, filesize, bsdjob->np_timeout)) != 0) { 977c478bd9Sstevel@tonic-gate return (xfer); 987c478bd9Sstevel@tonic-gate } 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate /* send msg - done */ 1017c478bd9Sstevel@tonic-gate if ((net = netpr_send_message(sockfd, "", NULL)) != 0) { 1027c478bd9Sstevel@tonic-gate (void) fprintf(stderr, 1037c478bd9Sstevel@tonic-gate gettext("Netpr: network error transfering %s returns: %d\n"), 1047c478bd9Sstevel@tonic-gate bsdjob->np_filename, net); 1057c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, 1067c478bd9Sstevel@tonic-gate "network error transfering %s returns: %d", 1077c478bd9Sstevel@tonic-gate bsdjob->np_filename, net); 1087c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_WRITE_FAILED); 1097c478bd9Sstevel@tonic-gate } 1107c478bd9Sstevel@tonic-gate 1117c478bd9Sstevel@tonic-gate /* 1127c478bd9Sstevel@tonic-gate * control file 1137c478bd9Sstevel@tonic-gate */ 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate if (bsdjob->np_print_order == DATA_FIRST) { 1167c478bd9Sstevel@tonic-gate if ((xfer_cfAfile(sockfd, bsdjob->np_cfAfile, 1177c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilename, 1187c478bd9Sstevel@tonic-gate bsdjob->np_cfAfilesize)) != 0) { 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate (void) fprintf(stderr, 1217c478bd9Sstevel@tonic-gate gettext("Netpr: Error sending control file\n")); 1227c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "Error sending control file"); 1237c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_UNKNOWN); 1247c478bd9Sstevel@tonic-gate } 1257c478bd9Sstevel@tonic-gate } 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate return (0); 1287c478bd9Sstevel@tonic-gate } 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate int 1317c478bd9Sstevel@tonic-gate xfer_file(int sockfd, caddr_t pa, int filesize, int seed) 1327c478bd9Sstevel@tonic-gate { 1337c478bd9Sstevel@tonic-gate int ctr; 1347c478bd9Sstevel@tonic-gate int timeout; 1357c478bd9Sstevel@tonic-gate int nw; 1367c478bd9Sstevel@tonic-gate int error_msg = 0; 1377c478bd9Sstevel@tonic-gate int pause = 0; 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file"); 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate /* send file */ 1427c478bd9Sstevel@tonic-gate ctr = filesize; 1437c478bd9Sstevel@tonic-gate timeout = seed = seed ? seed : 10; 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate while (ctr > 0) { 1467c478bd9Sstevel@tonic-gate 1477c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: write while loop => ctr = %d", ctr); 1487c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: timeout = %d", timeout); 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler); 151*23310c00Skeerthi (void) alarm(10); 1527c478bd9Sstevel@tonic-gate nw = write(sockfd, pa, ctr); 1537c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_file: write while loop => nw = %d", nw); 1547c478bd9Sstevel@tonic-gate (void) alarm(0); 1557c478bd9Sstevel@tonic-gate if ((nw == 0) || (nw < 0)) { 1567c478bd9Sstevel@tonic-gate if (timeout < (seed * 4)) { 1577c478bd9Sstevel@tonic-gate (void) sleep(timeout); 1587c478bd9Sstevel@tonic-gate timeout *= 2; 1597c478bd9Sstevel@tonic-gate } else if (timeout == (seed * 4)) { 1607c478bd9Sstevel@tonic-gate (void) sleep(timeout); 1617c478bd9Sstevel@tonic-gate timeout *= 2; 1627c478bd9Sstevel@tonic-gate 1637c478bd9Sstevel@tonic-gate /* 1647c478bd9Sstevel@tonic-gate * Send message to user once 1657c478bd9Sstevel@tonic-gate */ 1667c478bd9Sstevel@tonic-gate if (error_msg == 0) { 1677c478bd9Sstevel@tonic-gate error_msg++; 1687c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG, 1697c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;" 1707c478bd9Sstevel@tonic-gate "possibly offline or out of paper.")); 1717c478bd9Sstevel@tonic-gate } 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate } else if (timeout > (seed * 4)) { 1747c478bd9Sstevel@tonic-gate (void) sleep(timeout); 1757c478bd9Sstevel@tonic-gate if (pause++ > 3) 1767c478bd9Sstevel@tonic-gate timeout = (seed * 10); 1777c478bd9Sstevel@tonic-gate } 1787c478bd9Sstevel@tonic-gate 1797c478bd9Sstevel@tonic-gate } else { 1807c478bd9Sstevel@tonic-gate ctr -= nw; 1817c478bd9Sstevel@tonic-gate pa += nw; 1827c478bd9Sstevel@tonic-gate if (error_msg) { 1837c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current"); 1847c478bd9Sstevel@tonic-gate error_msg = 0; 1857c478bd9Sstevel@tonic-gate pause = 0; 1867c478bd9Sstevel@tonic-gate } 1877c478bd9Sstevel@tonic-gate timeout = seed; 1887c478bd9Sstevel@tonic-gate } 1897c478bd9Sstevel@tonic-gate } 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate return (E_SUCCESS); 1927c478bd9Sstevel@tonic-gate } 1937c478bd9Sstevel@tonic-gate 1947c478bd9Sstevel@tonic-gate static int 1957c478bd9Sstevel@tonic-gate xfer_cfAfile(int sockfd, char * cfAfile, char * cfAname, uint size) 1967c478bd9Sstevel@tonic-gate { 1977c478bd9Sstevel@tonic-gate int ctr; 1987c478bd9Sstevel@tonic-gate caddr_t pa; 1997c478bd9Sstevel@tonic-gate int nw = 0; 2007c478bd9Sstevel@tonic-gate int timeout; 2017c478bd9Sstevel@tonic-gate int printererr; 2027c478bd9Sstevel@tonic-gate 2037c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile"); 2047c478bd9Sstevel@tonic-gate 2057c478bd9Sstevel@tonic-gate if ((netpr_send_message(sockfd, "%c%d %s\n", XFER_CONTROL, 2067c478bd9Sstevel@tonic-gate size, cfAname)) != 0) { 2077c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_MSG_FAILED); 2087c478bd9Sstevel@tonic-gate } 2097c478bd9Sstevel@tonic-gate 2107c478bd9Sstevel@tonic-gate /* send the control file */ 2117c478bd9Sstevel@tonic-gate pa = cfAfile; 2127c478bd9Sstevel@tonic-gate ctr = size; 2137c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile : cfAfile %s", pa); 2147c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "xfer_cfAfile : size %d", size); 2157c478bd9Sstevel@tonic-gate 2167c478bd9Sstevel@tonic-gate /* send control file */ 2177c478bd9Sstevel@tonic-gate timeout = TIMEOUT; 2187c478bd9Sstevel@tonic-gate printererr = 0; 2197c478bd9Sstevel@tonic-gate while (ctr > 0) { 2207c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler); 2217c478bd9Sstevel@tonic-gate (void) alarm(2); 2227c478bd9Sstevel@tonic-gate nw = write(sockfd, pa, size); 2237c478bd9Sstevel@tonic-gate (void) alarm(0); 2247c478bd9Sstevel@tonic-gate if (nw <= 0) { 2257c478bd9Sstevel@tonic-gate if (timeout < 16) { 2267c478bd9Sstevel@tonic-gate (void) sleep(timeout); 2277c478bd9Sstevel@tonic-gate timeout *= 2; 2287c478bd9Sstevel@tonic-gate } else if (timeout == 16) { 2297c478bd9Sstevel@tonic-gate /* talk with the printer and see what's happening */ 2307c478bd9Sstevel@tonic-gate /* send message back to caller */ 2317c478bd9Sstevel@tonic-gate (void) sleep(timeout); 2327c478bd9Sstevel@tonic-gate timeout *= 2; 2337c478bd9Sstevel@tonic-gate printererr = 1; 2347c478bd9Sstevel@tonic-gate 2357c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG, 2367c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;" 2377c478bd9Sstevel@tonic-gate "possibly offline or out of paper.")); 2387c478bd9Sstevel@tonic-gate 2397c478bd9Sstevel@tonic-gate } else if (timeout > 16) { 2407c478bd9Sstevel@tonic-gate (void) sleep(timeout); 2417c478bd9Sstevel@tonic-gate } 2427c478bd9Sstevel@tonic-gate } 2437c478bd9Sstevel@tonic-gate ctr -= nw; 2447c478bd9Sstevel@tonic-gate pa += nw; 2457c478bd9Sstevel@tonic-gate } 2467c478bd9Sstevel@tonic-gate 2477c478bd9Sstevel@tonic-gate if (printererr == 1) { 2487c478bd9Sstevel@tonic-gate (void) fprintf(stderr, gettext("Printer status ok\n")); 2497c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current"); 2507c478bd9Sstevel@tonic-gate } 2517c478bd9Sstevel@tonic-gate 2527c478bd9Sstevel@tonic-gate 2537c478bd9Sstevel@tonic-gate /* send msg - done */ 2547c478bd9Sstevel@tonic-gate if (netpr_send_message(sockfd, "", NULL) != 0) { 2557c478bd9Sstevel@tonic-gate return (NETWORK_ERROR_MSG_FAILED); 2567c478bd9Sstevel@tonic-gate } 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate return (0); 2597c478bd9Sstevel@tonic-gate } 2607c478bd9Sstevel@tonic-gate 2617c478bd9Sstevel@tonic-gate /* 2627c478bd9Sstevel@tonic-gate * netpr_response() reads in a byte from the network printer 2637c478bd9Sstevel@tonic-gate */ 2647c478bd9Sstevel@tonic-gate static int 2657c478bd9Sstevel@tonic-gate netpr_response(int nd) 2667c478bd9Sstevel@tonic-gate { 2677c478bd9Sstevel@tonic-gate char c; 2687c478bd9Sstevel@tonic-gate int msg_given = 0; 2697c478bd9Sstevel@tonic-gate int firstloop = 0; 2707c478bd9Sstevel@tonic-gate 2717c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_response"); 2727c478bd9Sstevel@tonic-gate 2737c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler); 2747c478bd9Sstevel@tonic-gate (void) alarm(2); 2757c478bd9Sstevel@tonic-gate while (1) { 2767c478bd9Sstevel@tonic-gate errno = 0; 2777c478bd9Sstevel@tonic-gate if ((read(nd, &c, 1) != 1)) { 2787c478bd9Sstevel@tonic-gate 2797c478bd9Sstevel@tonic-gate if (firstloop == 0) { 2807c478bd9Sstevel@tonic-gate (void) alarm(0); 2817c478bd9Sstevel@tonic-gate firstloop++; 2827c478bd9Sstevel@tonic-gate } 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate if (errno == EINTR) { 2857c478bd9Sstevel@tonic-gate if (msg_given == 0) { 2867c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG, 2877c478bd9Sstevel@tonic-gate gettext("Printer not responding;" 2887c478bd9Sstevel@tonic-gate "Either warming up or needs attention")); 2897c478bd9Sstevel@tonic-gate msg_given++; 2907c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, 2917c478bd9Sstevel@tonic-gate "read hanging in netpr_response: %m"); 2927c478bd9Sstevel@tonic-gate } 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate } else { 2957c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, 2967c478bd9Sstevel@tonic-gate "read in netpr_response failed: %m"); 2977c478bd9Sstevel@tonic-gate return (NETWORK_READ_RESPONSE_FAILED); 2987c478bd9Sstevel@tonic-gate } 2997c478bd9Sstevel@tonic-gate 3007c478bd9Sstevel@tonic-gate } else { 3017c478bd9Sstevel@tonic-gate if (c) { 3027c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, 3037c478bd9Sstevel@tonic-gate "Printer returned error: %m"); 3047c478bd9Sstevel@tonic-gate return (NETWORK_PRINTER_REFUSED_CONN); 3057c478bd9Sstevel@tonic-gate } else { 3067c478bd9Sstevel@tonic-gate if (msg_given) 3077c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current"); 3087c478bd9Sstevel@tonic-gate return (0); 3097c478bd9Sstevel@tonic-gate } 3107c478bd9Sstevel@tonic-gate } 3117c478bd9Sstevel@tonic-gate } 3127c478bd9Sstevel@tonic-gate 3137c478bd9Sstevel@tonic-gate } 3147c478bd9Sstevel@tonic-gate 3157c478bd9Sstevel@tonic-gate static int 3167c478bd9Sstevel@tonic-gate netpr_send_message(int nd, char *fmt, ...) 3177c478bd9Sstevel@tonic-gate { 3187c478bd9Sstevel@tonic-gate char buf[BUFSIZ]; 3197c478bd9Sstevel@tonic-gate int ctr; 3207c478bd9Sstevel@tonic-gate char * pa; 3217c478bd9Sstevel@tonic-gate va_list ap; 3227c478bd9Sstevel@tonic-gate int timeout = 1; 3237c478bd9Sstevel@tonic-gate int nw; 3247c478bd9Sstevel@tonic-gate int err_msg = 0; 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message"); 3277c478bd9Sstevel@tonic-gate va_start(ap, fmt); 3287c478bd9Sstevel@tonic-gate (void) vsnprintf(buf, sizeof (buf), fmt, ap); 3297c478bd9Sstevel@tonic-gate va_end(ap); 3307c478bd9Sstevel@tonic-gate 3317c478bd9Sstevel@tonic-gate pa = buf; 3327c478bd9Sstevel@tonic-gate ctr = (strlen(buf) != 0) ? strlen(buf) : 1; 3337c478bd9Sstevel@tonic-gate 3347c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message : ctr = %d", ctr); 3357c478bd9Sstevel@tonic-gate while (ctr > 0) { 3367c478bd9Sstevel@tonic-gate (void) signal(SIGALRM, null_sighandler); 3377c478bd9Sstevel@tonic-gate (void) alarm(2); 3387c478bd9Sstevel@tonic-gate nw = write(nd, pa, ctr); 3397c478bd9Sstevel@tonic-gate syslog(LOG_DEBUG, "netpr_send_message : nw = %d", nw); 3407c478bd9Sstevel@tonic-gate (void) alarm(0); 3417c478bd9Sstevel@tonic-gate 3427c478bd9Sstevel@tonic-gate if (nw <= 0) { 3437c478bd9Sstevel@tonic-gate if (timeout < 16) { 3447c478bd9Sstevel@tonic-gate (void) sleep(timeout); 3457c478bd9Sstevel@tonic-gate timeout *= 2; 3467c478bd9Sstevel@tonic-gate } else if (timeout == 16) { 3477c478bd9Sstevel@tonic-gate (void) sleep(timeout); 3487c478bd9Sstevel@tonic-gate timeout *= 2; 3497c478bd9Sstevel@tonic-gate if (err_msg == 0) { 3507c478bd9Sstevel@tonic-gate err_msg++; 3517c478bd9Sstevel@tonic-gate tell_lptell(ERRORMSG, 3527c478bd9Sstevel@tonic-gate gettext("Printer not accepting input;" 3537c478bd9Sstevel@tonic-gate "possibly offline or out of paper.")); 3547c478bd9Sstevel@tonic-gate } 3557c478bd9Sstevel@tonic-gate } else 3567c478bd9Sstevel@tonic-gate (void) sleep(timeout); 3577c478bd9Sstevel@tonic-gate } else { 3587c478bd9Sstevel@tonic-gate ctr -= nw; 3597c478bd9Sstevel@tonic-gate pa += nw; 3607c478bd9Sstevel@tonic-gate if (err_msg) 3617c478bd9Sstevel@tonic-gate tell_lptell(OKMSG, "Current"); 3627c478bd9Sstevel@tonic-gate } 3637c478bd9Sstevel@tonic-gate } 3647c478bd9Sstevel@tonic-gate 3657c478bd9Sstevel@tonic-gate return (netpr_response(nd)); 3667c478bd9Sstevel@tonic-gate } 3677c478bd9Sstevel@tonic-gate 3687c478bd9Sstevel@tonic-gate /* 3697c478bd9Sstevel@tonic-gate * null() is to be used as a signal handler that does nothing. It is used in 3707c478bd9Sstevel@tonic-gate * place of SIG_IGN, because we want the signal to be delivered and 3717c478bd9Sstevel@tonic-gate * interupt the current system call. 3727c478bd9Sstevel@tonic-gate */ 3737c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 3747c478bd9Sstevel@tonic-gate void 3757c478bd9Sstevel@tonic-gate null_sighandler(int i) 3767c478bd9Sstevel@tonic-gate { 3777c478bd9Sstevel@tonic-gate } 378