1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* lfmt_log() - log info */ 31 32 #include "lint.h" 33 #include <mtlib.h> 34 #include <pfmt.h> 35 #include <stdio.h> 36 #include <sys/types.h> 37 #include <sys/types32.h> 38 #include <sys/stropts.h> 39 #include <sys/strlog.h> 40 #include <fcntl.h> 41 #include <errno.h> 42 #include <synch.h> 43 #include <thread.h> 44 #include "pfmt_data.h" 45 #include <time.h> 46 #include <stropts.h> 47 #include <unistd.h> 48 #include <strings.h> 49 #include <sys/uio.h> 50 51 #define MAXMSG 1024 52 #define LOGNAME "/dev/conslog" 53 #define LOG_CONSOLE "/dev/console" 54 55 int 56 __lfmt_log(const char *text, const char *sev, va_list args, long flag, int ret) 57 { 58 static int fd = -1; 59 struct strbuf dat; 60 int msg_offset; 61 long len; 62 union { 63 long flag; 64 char buf[MAXMSG]; 65 } msg; 66 int err; 67 int fdd; 68 69 len = ret + sizeof (long) + 3; 70 71 if (len > sizeof (msg)) { 72 errno = ERANGE; 73 return (-2); 74 } 75 76 msg.flag = flag; 77 msg_offset = (int)sizeof (long); 78 79 lrw_rdlock(&_rw_pfmt_label); 80 if (*__pfmt_label) 81 msg_offset += strlcpy(msg.buf + msg_offset, __pfmt_label, 82 sizeof (msg.buf) - msg_offset); 83 lrw_unlock(&_rw_pfmt_label); 84 85 if (sev) 86 msg_offset += sprintf(msg.buf + msg_offset, sev, flag & 0xff); 87 88 msg_offset += 1 + vsprintf(msg.buf + msg_offset, text, args); 89 msg.buf[msg_offset++] = '\0'; 90 91 if (fd == -1 && 92 ((fd = open(LOGNAME, O_WRONLY)) == -1 || 93 fcntl(fd, F_SETFD, 1) == -1)) 94 return (-2); 95 96 dat.maxlen = MAXMSG; 97 dat.len = (int)msg_offset; 98 dat.buf = msg.buf; 99 100 if (putmsg(fd, 0, &dat, 0) == -1) { 101 (void) close(fd); 102 return (-2); 103 } 104 105 /* 106 * Display it to a console 107 */ 108 if ((flag & MM_CONSOLE) != 0) { 109 char *p; 110 time_t t; 111 char buf[128]; 112 err = errno; 113 fdd = open(LOG_CONSOLE, O_WRONLY); 114 if (fdd != -1) { 115 /* 116 * Use C locale for time stamp. 117 */ 118 (void) time(&t); 119 (void) ctime_r(&t, buf, sizeof (buf)); 120 p = (char *)strrchr(buf, '\n'); 121 if (p != NULL) 122 *p = ':'; 123 (void) write(fdd, buf, strlen(buf)); 124 (void) write(fdd, msg.buf + sizeof (long), 125 msg_offset - sizeof (long)); 126 (void) write(fdd, "\n", 1); 127 } else 128 return (-2); 129 (void) close(fdd); 130 errno = err; 131 } 132 return (ret); 133 } 134