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*d4188195Sraf * Common Development and Distribution License (the "License"). 6*d4188195Sraf * 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 */ 21*d4188195Sraf 227c478bd9Sstevel@tonic-gate /* 23*d4188195Sraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*d4188195Sraf * 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 "../common/compat.h" 307c478bd9Sstevel@tonic-gate #include <errno.h> 317c478bd9Sstevel@tonic-gate #include <stdio.h> 327c478bd9Sstevel@tonic-gate #include <sys/types.h> 337c478bd9Sstevel@tonic-gate #include <unistd.h> 34*d4188195Sraf #include <sys/syscall.h> 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate /* 377c478bd9Sstevel@tonic-gate * If reading from the utmp file, map the data to the SunOS 4.1 387c478bd9Sstevel@tonic-gate * format on the fly. 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate extern void to_utmp(char *, char *, int); 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate int 437c478bd9Sstevel@tonic-gate read(int fd, char *buf, int size) 447c478bd9Sstevel@tonic-gate { 457c478bd9Sstevel@tonic-gate return (bc_read(fd, buf, size)); 467c478bd9Sstevel@tonic-gate } 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate int 497c478bd9Sstevel@tonic-gate bc_read(int fd, char *buf, int size) 507c478bd9Sstevel@tonic-gate { 517c478bd9Sstevel@tonic-gate int fds, ret, off; 527c478bd9Sstevel@tonic-gate char *nbuf; 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate if (fd_get(fd) != -1) { /* we're reading utmp (utmpx, really) */ 557c478bd9Sstevel@tonic-gate size = getmodsize(size, sizeof (struct compat_utmp), 567c478bd9Sstevel@tonic-gate sizeof (struct utmpx)); 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate if ((nbuf = (void *)malloc(size)) == NULL) { 597c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "read: malloc failed\n"); 607c478bd9Sstevel@tonic-gate exit(-1); 617c478bd9Sstevel@tonic-gate } 627c478bd9Sstevel@tonic-gate 637c478bd9Sstevel@tonic-gate if ((ret = _read(fd, nbuf, size)) == -1) { 647c478bd9Sstevel@tonic-gate if (errno == EAGAIN) 657c478bd9Sstevel@tonic-gate errno = EWOULDBLOCK; 667c478bd9Sstevel@tonic-gate free(nbuf); 677c478bd9Sstevel@tonic-gate return (-1); 687c478bd9Sstevel@tonic-gate } 697c478bd9Sstevel@tonic-gate to_utmp(buf, nbuf, ret); 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate ret = getmodsize(ret, sizeof (struct utmpx), 727c478bd9Sstevel@tonic-gate sizeof (struct compat_utmp)); 737c478bd9Sstevel@tonic-gate free(nbuf); 747c478bd9Sstevel@tonic-gate return (ret); 757c478bd9Sstevel@tonic-gate } 767c478bd9Sstevel@tonic-gate 777c478bd9Sstevel@tonic-gate if ((ret = _read(fd, buf, size)) == -1) { 787c478bd9Sstevel@tonic-gate if (errno == EAGAIN) 797c478bd9Sstevel@tonic-gate errno = EWOULDBLOCK; 807c478bd9Sstevel@tonic-gate } 817c478bd9Sstevel@tonic-gate return (ret); 827c478bd9Sstevel@tonic-gate } 837c478bd9Sstevel@tonic-gate 847c478bd9Sstevel@tonic-gate void 857c478bd9Sstevel@tonic-gate to_utmp(char *buf, char *nbuf, int len) 867c478bd9Sstevel@tonic-gate { 877c478bd9Sstevel@tonic-gate struct compat_utmp *ut; 887c478bd9Sstevel@tonic-gate struct utmpx *utx; 897c478bd9Sstevel@tonic-gate 907c478bd9Sstevel@tonic-gate utx = (struct utmpx *)nbuf; 917c478bd9Sstevel@tonic-gate ut = (struct compat_utmp *)buf; 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate while ((char *)utx < (nbuf + len)) { 947c478bd9Sstevel@tonic-gate (void) strncpy(ut->ut_line, utx->ut_line, sizeof (ut->ut_line)); 957c478bd9Sstevel@tonic-gate (void) strncpy(ut->ut_name, utx->ut_user, sizeof (ut->ut_name)); 967c478bd9Sstevel@tonic-gate (void) strncpy(ut->ut_host, utx->ut_host, sizeof (ut->ut_host)); 977c478bd9Sstevel@tonic-gate ut->ut_time = utx->ut_tv.tv_sec; 987c478bd9Sstevel@tonic-gate utx++; 997c478bd9Sstevel@tonic-gate ut++; 1007c478bd9Sstevel@tonic-gate } 1017c478bd9Sstevel@tonic-gate } 102