/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * listdgrp.c * * Contains * listdgrp Writes on the standard output stream a list of devices * that belong to the specified device group */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <devmgmt.h> #include <devtab.h> #include <fmtmsg.h> /* * Local Definitions * TRUE Boolean TRUE value (if not already defined) * FALSE Boolean not-TRUE value (if not already defined) */ #ifndef TRUE #define TRUE ('t') #endif #ifndef FALSE #define FALSE (0) #endif /* * Messages: * M_USAGE Command usage error * M_NODGRP Device group not found * M_DGRPTAB Device-group table not found * M_ERROR Internal error */ #define M_USAGE "usage: listdgrp dgroup" #define M_NODGRP "Device group not found: %s" #define M_DGRPTAB "Cannot open device-group table: %s" #define M_ERROR "Internal error, errno=%d" /* * Exit codes * EX_OK Exiting okay, no problem * EX_ERROR Some problem with the command * EX_NODGRPTAB Device group table could not be opened * EX_NODGROUP Device group couldn't be found */ #define EX_OK 0 #define EX_ERROR 1 #define EX_NODGRPTAB 2 #define EX_NODGROUP 3 /* * Macros * stdmsg(r,l,s,t) Write a message in standard format * r Recoverability flag * l Label * s Severity * t Tag */ #define stdmsg(r,l,s,t) (void) fmtmsg(MM_PRINT|MM_UTIL|r,l,s,t,MM_NULLACT,MM_NULLTAG) /* * Global Variables */ /* * Static Variables * * lbl Buffer for the message label */ static char lbl[MM_MXLABELLN+1]; static char msg[MM_MXTXTLN+1]; /* * listdgrp <dgroup> * * List the devices that belong to the device group <dgroup>. * It writes the list to the standard output file (stdout) * in a new-line list. * * Returns: * 0 Ok * 1 Syntax or other error * 2 Device table can't be opened * 3 Device group doesn't exist */ int main(int argc, char **argv) { /* * Automatic data */ char **devices; /* List of devices in the group */ char **pp; /* Running pointer to device names */ char *cmdname; /* Simple command name */ char *dgrptab; /* The device-group table name */ char *dgroup; /* Device group to list */ int exitcode; /* Value to return to the caller */ int sev; /* Message severity */ int optchar; /* Option char (from getopt()) */ int usageerr; /* TRUE if syntax error on command */ /* Build the message label from the (simple) command name */ if ((cmdname = strrchr(argv[0], '/')) != (char *) NULL) cmdname++; else cmdname = argv[0]; (void) strlcat(strcpy(lbl, "UX:"), cmdname, sizeof(lbl)); /* Only write the text component of a message (this goes away in SVR4.1) */ (void) putenv("MSGVERB=text"); /* * Parse the command line: * - Options * - Device group to display */ /* * Extract options from the command line */ /* Initializations */ usageerr = FALSE; /* No errors on the command line (yet) */ /* * Loop until all of the command line options have been parced * (and don't let getopt() write messages) */ opterr = FALSE; while ((optchar = getopt(argc, argv, "")) != EOF) switch (optchar) { /* Default case -- command usage error */ case '?': default: usageerr = TRUE; break; } /* Check the argument count and extract the device group name */ if (usageerr || (optind != argc-1)) usageerr = TRUE; else dgroup = argv[optind]; /* If there is a usage error, write an appropriate message and exit */ if (usageerr) { stdmsg(MM_NRECOV, lbl, MM_ERROR, M_USAGE); exit(EX_ERROR); } /* Open the device-group file (if there's one to be opened) */ if (!_opendgrptab("r")) { if (dgrptab = _dgrptabpath()) { (void) snprintf(msg, sizeof(msg), M_DGRPTAB, dgrptab); exitcode = EX_NODGRPTAB; sev = MM_ERROR; } else { (void) sprintf(msg, M_ERROR, errno); exitcode = EX_ERROR; sev = MM_HALT; } stdmsg(MM_NRECOV, lbl, sev, msg); exit(exitcode); } /* * Get the list of devices associated with the device group. * If we get one, write the list to the standard output. * Otherwise, write an appropriate error message */ exitcode = EX_OK; if (devices = listdgrp(dgroup)) { for (pp = devices ; *pp ; pp++) (void) puts(*pp); } else { if (errno == EINVAL) { (void) snprintf(msg, sizeof(msg), M_NODGRP, dgroup); stdmsg(MM_NRECOV, lbl, MM_ERROR, msg); exitcode = EX_NODGROUP; } else { (void) sprintf(msg, M_ERROR, errno); stdmsg(MM_NRECOV, lbl, MM_HALT, msg); exitcode = EX_ERROR; } } /* Finished (now wasn't that special?) */ return(exitcode); }
