1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright (c) 1997, by Sun Microsystems, Inc. 28*0Sstevel@tonic-gate * All rights reserved. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate /*LINTLIBRARY*/ 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* 36*0Sstevel@tonic-gate * getdgrp.c 37*0Sstevel@tonic-gate * 38*0Sstevel@tonic-gate * Contains the following global functions: 39*0Sstevel@tonic-gate * getdgrp() Get the device groups that meet certain criteria. 40*0Sstevel@tonic-gate */ 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate /* 43*0Sstevel@tonic-gate * Header Files Referenced 44*0Sstevel@tonic-gate * <sys/types.h> Data Types 45*0Sstevel@tonic-gate * <stdio.h> Standard I/O definitions 46*0Sstevel@tonic-gate * <string.h> Character-string definitions 47*0Sstevel@tonic-gate * <devmgmt.h> Definitions for accessing device table files 48*0Sstevel@tonic-gate * "devtab.h" Local definitions for device tables 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate #include <sys/types.h> 52*0Sstevel@tonic-gate #include <stdio.h> 53*0Sstevel@tonic-gate #include <string.h> 54*0Sstevel@tonic-gate #include <stdlib.h> 55*0Sstevel@tonic-gate #include <devmgmt.h> 56*0Sstevel@tonic-gate #include "devtab.h" 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * Local definitions 60*0Sstevel@tonic-gate * struct dgrplist Structure that makes up the internal device 61*0Sstevel@tonic-gate * group list 62*0Sstevel@tonic-gate * Members: 63*0Sstevel@tonic-gate * name Name of the device group 64*0Sstevel@tonic-gate * next Pointer to the next in the list 65*0Sstevel@tonic-gate */ 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate struct dgrplist { 68*0Sstevel@tonic-gate char *name; 69*0Sstevel@tonic-gate struct dgrplist *next; 70*0Sstevel@tonic-gate }; 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* 74*0Sstevel@tonic-gate * Local functions 75*0Sstevel@tonic-gate * initdgrplist Initialize the internal device group list 76*0Sstevel@tonic-gate * addtodgrplist Add a device group to the device group list 77*0Sstevel@tonic-gate * isindevlist Does the device group contain a device? 78*0Sstevel@tonic-gate * isincallerslist Is a device group in the caller's list? 79*0Sstevel@tonic-gate * buildreturnlist Build list of device groups to return 80*0Sstevel@tonic-gate * freedgrplist Free the internal device group list 81*0Sstevel@tonic-gate */ 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate static void initdgrplist(void); 84*0Sstevel@tonic-gate static int addtodgrplist(struct dgrptabent *); 85*0Sstevel@tonic-gate static int isindevlist(struct dgrptabent *, char **); 86*0Sstevel@tonic-gate static int isincallerslist(struct dgrptabent *, char **); 87*0Sstevel@tonic-gate static char **buildreturnlist(void); 88*0Sstevel@tonic-gate static void freedgrplist(void); 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate /* 92*0Sstevel@tonic-gate * Local data 93*0Sstevel@tonic-gate * dgrplistfirst First (dummy) node in the device group list 94*0Sstevel@tonic-gate * dgrplistcount Number of items in the device group list 95*0Sstevel@tonic-gate */ 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate static struct dgrplist dgrplistfirst; 98*0Sstevel@tonic-gate static int dgrplistcount; 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate /* 101*0Sstevel@tonic-gate * char **getdgrp(dgroups, criteria, options) 102*0Sstevel@tonic-gate * char **dgroups 103*0Sstevel@tonic-gate * char **criteria 104*0Sstevel@tonic-gate * int options 105*0Sstevel@tonic-gate * 106*0Sstevel@tonic-gate * This function compiles a list of device groups containing devices 107*0Sstevel@tonic-gate * that meet certain criteria and returns a pointer to the first 108*0Sstevel@tonic-gate * item in that list. 109*0Sstevel@tonic-gate * 110*0Sstevel@tonic-gate * Arguments: 111*0Sstevel@tonic-gate * dgroups The list of device groups to choose from or the list 112*0Sstevel@tonic-gate * of device groups to exclude from the list (depends on 113*0Sstevel@tonic-gate * "options" 114*0Sstevel@tonic-gate * criteria The criteria that a device must meet 115*0Sstevel@tonic-gate * options Indicates 1) whether to "and" the criteria or to "or" 116*0Sstevel@tonic-gate * the criteria, 2) indicates whether to limit the 117*0Sstevel@tonic-gate * generated list to "dgroups" or to exclude those 118*0Sstevel@tonic-gate * device-groups from the list, 3) to list all device 119*0Sstevel@tonic-gate * groups even if they don't contain valid devices. 120*0Sstevel@tonic-gate * 121*0Sstevel@tonic-gate * Returns: char ** 122*0Sstevel@tonic-gate * A pointer to the first address in the list of addresses of generated 123*0Sstevel@tonic-gate * device groups 124*0Sstevel@tonic-gate */ 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate char ** 127*0Sstevel@tonic-gate getdgrp( 128*0Sstevel@tonic-gate char **dgroups, /* List of device groups */ 129*0Sstevel@tonic-gate char **criteria, /* List of criteria to meet */ 130*0Sstevel@tonic-gate int options) /* Options governing the search */ 131*0Sstevel@tonic-gate { 132*0Sstevel@tonic-gate /* Automatic data */ 133*0Sstevel@tonic-gate char **devlist; /* Devices that meet criteria */ 134*0Sstevel@tonic-gate char **plist; /* Device groups to return */ 135*0Sstevel@tonic-gate struct dgrptabent *dgrp; /* Dgrp information struct */ 136*0Sstevel@tonic-gate int errorflag; /* TRUE if error occurred */ 137*0Sstevel@tonic-gate int listallflag; /* TRUE if DTAB_LISTALL && (!criteria || !*criteria) */ 138*0Sstevel@tonic-gate 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate /* 141*0Sstevel@tonic-gate * Open the device-group table if needed 142*0Sstevel@tonic-gate */ 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate if (!oam_dgroup && !_opendgrptab("r")) 145*0Sstevel@tonic-gate return (NULL); 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate /* 149*0Sstevel@tonic-gate * Get the list of devices that meet the criteria specified 150*0Sstevel@tonic-gate * This step can be skipped if DTAB_LISTALL is requested and 151*0Sstevel@tonic-gate * there is no criteria list. 152*0Sstevel@tonic-gate */ 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate if (((options & DTAB_LISTALL) == 0) || (criteria && *criteria)) { 155*0Sstevel@tonic-gate devlist = getdev(NULL, criteria, (options & DTAB_ANDCRITERIA)); 156*0Sstevel@tonic-gate listallflag = FALSE; 157*0Sstevel@tonic-gate } else { 158*0Sstevel@tonic-gate devlist = NULL; 159*0Sstevel@tonic-gate listallflag = TRUE; 160*0Sstevel@tonic-gate } 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate /* 164*0Sstevel@tonic-gate * Initialize the device group list (contains the device groups 165*0Sstevel@tonic-gate * we're accumulating) 166*0Sstevel@tonic-gate */ 167*0Sstevel@tonic-gate 168*0Sstevel@tonic-gate errorflag = FALSE; 169*0Sstevel@tonic-gate initdgrplist(); 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate 172*0Sstevel@tonic-gate /* 173*0Sstevel@tonic-gate * If no device groups were specified by the caller, accumulate all 174*0Sstevel@tonic-gate * device groups 175*0Sstevel@tonic-gate */ 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate _setdgrptab(); 178*0Sstevel@tonic-gate if (!dgroups || !(*dgroups)) { 179*0Sstevel@tonic-gate while (!errorflag && (dgrp = _getdgrptabent())) { 180*0Sstevel@tonic-gate if (!dgrp->comment && (listallflag || 181*0Sstevel@tonic-gate isindevlist(dgrp, devlist))) 182*0Sstevel@tonic-gate errorflag = !addtodgrplist(dgrp); 183*0Sstevel@tonic-gate _freedgrptabent(dgrp); 184*0Sstevel@tonic-gate } 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate else { 188*0Sstevel@tonic-gate 189*0Sstevel@tonic-gate /* 190*0Sstevel@tonic-gate * If the exclusion flag is not set, build a list of device 191*0Sstevel@tonic-gate * groups that is a subset of those specified by the caller 192*0Sstevel@tonic-gate */ 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate if ((options & DTAB_EXCLUDEFLAG) == 0) { 195*0Sstevel@tonic-gate while (!errorflag && (dgrp = _getdgrptabent())) { 196*0Sstevel@tonic-gate if (!dgrp->comment && isincallerslist(dgrp, dgroups) && 197*0Sstevel@tonic-gate (listallflag || isindevlist(dgrp, devlist))) { 198*0Sstevel@tonic-gate errorflag = !addtodgrplist(dgrp); 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate _freedgrptabent(dgrp); 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate } 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate /* 205*0Sstevel@tonic-gate * If the exclusion flag is set, build a list of device groups 206*0Sstevel@tonic-gate * that meet the criteria and are not in the list of device 207*0Sstevel@tonic-gate * groups specified by the caller. 208*0Sstevel@tonic-gate */ 209*0Sstevel@tonic-gate else { 210*0Sstevel@tonic-gate while (!errorflag && (dgrp = _getdgrptabent())) { 211*0Sstevel@tonic-gate if (!dgrp->comment && !isincallerslist(dgrp, dgroups) && 212*0Sstevel@tonic-gate (listallflag || isindevlist(dgrp, devlist))) { 213*0Sstevel@tonic-gate errorflag = !addtodgrplist(dgrp); 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate _freedgrptabent(dgrp); 216*0Sstevel@tonic-gate } 217*0Sstevel@tonic-gate } 218*0Sstevel@tonic-gate } 219*0Sstevel@tonic-gate plist = buildreturnlist(); 220*0Sstevel@tonic-gate freedgrplist(); 221*0Sstevel@tonic-gate _enddgrptab(); 222*0Sstevel@tonic-gate return (plist); 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate /* 226*0Sstevel@tonic-gate * int initdgrplist() 227*0Sstevel@tonic-gate * 228*0Sstevel@tonic-gate * Initializes the internal device group linked list 229*0Sstevel@tonic-gate * 230*0Sstevel@tonic-gate * Arguments: None 231*0Sstevel@tonic-gate * 232*0Sstevel@tonic-gate * Returns: void 233*0Sstevel@tonic-gate */ 234*0Sstevel@tonic-gate 235*0Sstevel@tonic-gate static void 236*0Sstevel@tonic-gate initdgrplist(void) 237*0Sstevel@tonic-gate { 238*0Sstevel@tonic-gate /* Automatic data */ 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate /* 241*0Sstevel@tonic-gate * Initialize the structure. Dummy node points to nothing, count to 242*0Sstevel@tonic-gate * zero. 243*0Sstevel@tonic-gate */ 244*0Sstevel@tonic-gate dgrplistcount = 0; 245*0Sstevel@tonic-gate dgrplistfirst.name = ""; 246*0Sstevel@tonic-gate dgrplistfirst.next = NULL; 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate 249*0Sstevel@tonic-gate /* 250*0Sstevel@tonic-gate * int addtodgrplist(dgrp) 251*0Sstevel@tonic-gate * struct dgrptabent *dgrp 252*0Sstevel@tonic-gate * 253*0Sstevel@tonic-gate * Adds the device group described by the "dgrp" structure to the 254*0Sstevel@tonic-gate * internal list of device-groups we're accumulating. 255*0Sstevel@tonic-gate * 256*0Sstevel@tonic-gate * Arguments: 257*0Sstevel@tonic-gate * dgrp Describes the device-group we're adding 258*0Sstevel@tonic-gate * 259*0Sstevel@tonic-gate * Returns: int 260*0Sstevel@tonic-gate * TRUE if successful, FALSE otherwise 261*0Sstevel@tonic-gate */ 262*0Sstevel@tonic-gate 263*0Sstevel@tonic-gate static int 264*0Sstevel@tonic-gate addtodgrplist(struct dgrptabent *dgrp) 265*0Sstevel@tonic-gate { 266*0Sstevel@tonic-gate /* Automatic data */ 267*0Sstevel@tonic-gate struct dgrplist *newnode; /* Allocated node */ 268*0Sstevel@tonic-gate struct dgrplist *p; /* Running dgrp list ptr */ 269*0Sstevel@tonic-gate struct dgrplist *q; /* Another Running dgrp list ptr */ 270*0Sstevel@tonic-gate char *newstr; /* Space for the dgroup name */ 271*0Sstevel@tonic-gate int errorflag; /* TRUE if error */ 272*0Sstevel@tonic-gate int cmpval; /* Value from strcmp() */ 273*0Sstevel@tonic-gate 274*0Sstevel@tonic-gate /* No errors seen yet */ 275*0Sstevel@tonic-gate errorflag = FALSE; 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate /* Find where we're supposed to insert this item in the list */ 278*0Sstevel@tonic-gate q = &dgrplistfirst; 279*0Sstevel@tonic-gate p = q->next; 280*0Sstevel@tonic-gate while (p && ((cmpval = strcmp(p->name, dgrp->name)) < 0)) { 281*0Sstevel@tonic-gate q = p; 282*0Sstevel@tonic-gate p = p->next; 283*0Sstevel@tonic-gate } 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate /* If the item isn't already in the list, insert it */ 286*0Sstevel@tonic-gate if ((p == NULL) || (cmpval != 0)) { 287*0Sstevel@tonic-gate 288*0Sstevel@tonic-gate /* Allocate space for the structure */ 289*0Sstevel@tonic-gate newnode = malloc(sizeof (struct dgrplist)); 290*0Sstevel@tonic-gate if (newnode) { 291*0Sstevel@tonic-gate 292*0Sstevel@tonic-gate /* Allocate space for the device group name */ 293*0Sstevel@tonic-gate if (newstr = malloc(strlen(dgrp->name)+1)) { 294*0Sstevel@tonic-gate 295*0Sstevel@tonic-gate /* Link the new structure into the list */ 296*0Sstevel@tonic-gate newnode->name = strcpy(newstr, dgrp->name); 297*0Sstevel@tonic-gate newnode->next = p; 298*0Sstevel@tonic-gate q->next = newnode; 299*0Sstevel@tonic-gate dgrplistcount++; 300*0Sstevel@tonic-gate } else { 301*0Sstevel@tonic-gate /* No space for the string. Clean up */ 302*0Sstevel@tonic-gate errorflag = TRUE; 303*0Sstevel@tonic-gate free(newnode); 304*0Sstevel@tonic-gate } 305*0Sstevel@tonic-gate } else errorflag = TRUE; 306*0Sstevel@tonic-gate } 307*0Sstevel@tonic-gate 308*0Sstevel@tonic-gate /* Return a value that indicates whether we've had an error */ 309*0Sstevel@tonic-gate return (!errorflag); 310*0Sstevel@tonic-gate } 311*0Sstevel@tonic-gate 312*0Sstevel@tonic-gate /* 313*0Sstevel@tonic-gate * int isindevlist(dgrp, devlist) 314*0Sstevel@tonic-gate * struct dgrptabent *dgrp 315*0Sstevel@tonic-gate * char **devlist 316*0Sstevel@tonic-gate * 317*0Sstevel@tonic-gate * This function searches the device membership list of the device 318*0Sstevel@tonic-gate * group <dgrp> for any of the devices listed in the list of devices 319*0Sstevel@tonic-gate * <devlist>. It returns TRUE if at least one device in <devlist> is 320*0Sstevel@tonic-gate * found in <dgrp>, otherwise it returns false. 321*0Sstevel@tonic-gate * 322*0Sstevel@tonic-gate * Arguments: 323*0Sstevel@tonic-gate * dgrp The device group to examine 324*0Sstevel@tonic-gate * devlist The list of devices to search for 325*0Sstevel@tonic-gate * 326*0Sstevel@tonic-gate * Returns: int 327*0Sstevel@tonic-gate * TRUE if one of the devices in <devlist> is a member of the device 328*0Sstevel@tonic-gate * group <dgrp>, FALSE otherwise 329*0Sstevel@tonic-gate */ 330*0Sstevel@tonic-gate 331*0Sstevel@tonic-gate static int 332*0Sstevel@tonic-gate isindevlist( 333*0Sstevel@tonic-gate struct dgrptabent *dgrp, /* Dgrp to search for */ 334*0Sstevel@tonic-gate char **devlist) /* List of devices to search against */ 335*0Sstevel@tonic-gate { 336*0Sstevel@tonic-gate /* Automatic data */ 337*0Sstevel@tonic-gate struct member *pmbr; /* Next member of the dgrp list */ 338*0Sstevel@tonic-gate char **pdev; /* Next device in the dev list */ 339*0Sstevel@tonic-gate char *mbralias; /* The alias of a group member */ 340*0Sstevel@tonic-gate int cmpval; /* strcmp() result */ 341*0Sstevel@tonic-gate int notfound; /* TRUE if no mbr of dgrp is in dev list */ 342*0Sstevel@tonic-gate int allocflag; /* TRUE if the mbralias string is malloc()ed */ 343*0Sstevel@tonic-gate 344*0Sstevel@tonic-gate 345*0Sstevel@tonic-gate /* 346*0Sstevel@tonic-gate * For each device in the device group, search the alphabetically 347*0Sstevel@tonic-gate * sorted list of devices for that device. 348*0Sstevel@tonic-gate */ 349*0Sstevel@tonic-gate 350*0Sstevel@tonic-gate notfound = TRUE; 351*0Sstevel@tonic-gate for (pmbr = dgrp->membership; notfound && pmbr; pmbr = pmbr->next) { 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate /* 354*0Sstevel@tonic-gate * Get the member's alias (we've got it if the member is not a 355*0Sstevel@tonic-gate * pathname) 356*0Sstevel@tonic-gate */ 357*0Sstevel@tonic-gate allocflag = (*pmbr->name == '/'); 358*0Sstevel@tonic-gate if (allocflag) 359*0Sstevel@tonic-gate mbralias = devattr(pmbr->name, DTAB_ALIAS); 360*0Sstevel@tonic-gate else mbralias = pmbr->name; 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate /* If we've got a member alias, search the device list for it */ 363*0Sstevel@tonic-gate if (mbralias) 364*0Sstevel@tonic-gate for (pdev = devlist; notfound && *pdev; pdev++) 365*0Sstevel@tonic-gate 366*0Sstevel@tonic-gate if ((cmpval = strcmp(mbralias, *pdev)) == 0) notfound = FALSE; 367*0Sstevel@tonic-gate else if (cmpval < 0) 368*0Sstevel@tonic-gate break; /* Optimization: alpha sorted list */ 369*0Sstevel@tonic-gate 370*0Sstevel@tonic-gate /* 371*0Sstevel@tonic-gate * Free the space allocated to the member alias 372*0Sstevel@tonic-gate * (if it was allocated above by devattr()) 373*0Sstevel@tonic-gate */ 374*0Sstevel@tonic-gate if (allocflag) free(mbralias); 375*0Sstevel@tonic-gate 376*0Sstevel@tonic-gate } 377*0Sstevel@tonic-gate 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate /* 380*0Sstevel@tonic-gate * Return a value indicating that we the device group contains 381*0Sstevel@tonic-gate * a member that is in the list of devices 382*0Sstevel@tonic-gate */ 383*0Sstevel@tonic-gate 384*0Sstevel@tonic-gate return (!notfound); 385*0Sstevel@tonic-gate } 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate /* 388*0Sstevel@tonic-gate * int isincallerslist(dgrp, dgroups) 389*0Sstevel@tonic-gate * struct dgrptabent *dgrp 390*0Sstevel@tonic-gate * char **dgroups 391*0Sstevel@tonic-gate * 392*0Sstevel@tonic-gate * This function looks through the "dgroups" list for the device 393*0Sstevel@tonic-gate * group described by "dgrp" 394*0Sstevel@tonic-gate * 395*0Sstevel@tonic-gate * Arguments: 396*0Sstevel@tonic-gate * dgrp Device group to search for 397*0Sstevel@tonic-gate * dgroups The address of the first item in the list of device 398*0Sstevel@tonic-gate * groups to search 399*0Sstevel@tonic-gate * 400*0Sstevel@tonic-gate * Returns: int 401*0Sstevel@tonic-gate * TRUE if found, FALSE otherwise 402*0Sstevel@tonic-gate */ 403*0Sstevel@tonic-gate 404*0Sstevel@tonic-gate static int 405*0Sstevel@tonic-gate isincallerslist( 406*0Sstevel@tonic-gate struct dgrptabent *dgrp, /* Dgrp to search for */ 407*0Sstevel@tonic-gate char **dgroups) /* Caller's list of dgroups */ 408*0Sstevel@tonic-gate { 409*0Sstevel@tonic-gate /* Automatic data */ 410*0Sstevel@tonic-gate char **pdgrp; 411*0Sstevel@tonic-gate int notfound; 412*0Sstevel@tonic-gate 413*0Sstevel@tonic-gate /* 414*0Sstevel@tonic-gate * Search the list of device groups for the name of the device group 415*0Sstevel@tonic-gate * in the structure described by <dgrp>. 416*0Sstevel@tonic-gate */ 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate /* Initializations */ 419*0Sstevel@tonic-gate notfound = TRUE; 420*0Sstevel@tonic-gate 421*0Sstevel@tonic-gate /* Search the device group list for name of this device group */ 422*0Sstevel@tonic-gate for (pdgrp = dgroups; notfound && *pdgrp; pdgrp++) { 423*0Sstevel@tonic-gate if (strcmp(dgrp->name, *pdgrp) == 0) notfound = FALSE; 424*0Sstevel@tonic-gate } 425*0Sstevel@tonic-gate 426*0Sstevel@tonic-gate /* Return TRUE if the device group is in the list, FALSE otherwise */ 427*0Sstevel@tonic-gate return (!notfound); 428*0Sstevel@tonic-gate } 429*0Sstevel@tonic-gate 430*0Sstevel@tonic-gate /* 431*0Sstevel@tonic-gate * char **buildreturnlist() 432*0Sstevel@tonic-gate * 433*0Sstevel@tonic-gate * This function builds the list of pointers to device groups 434*0Sstevel@tonic-gate * to return to the caller from the linked list of device-groups 435*0Sstevel@tonic-gate * we've been accumulating. 436*0Sstevel@tonic-gate * 437*0Sstevel@tonic-gate * Arguments: none 438*0Sstevel@tonic-gate * 439*0Sstevel@tonic-gate * Returns: char ** 440*0Sstevel@tonic-gate * A pointer to the first element in the malloc()ed list of pointers 441*0Sstevel@tonic-gate * to malloc()ed character strings containing device groups which have 442*0Sstevel@tonic-gate * member devices which match the criteria 443*0Sstevel@tonic-gate */ 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate static char ** 446*0Sstevel@tonic-gate buildreturnlist(void) 447*0Sstevel@tonic-gate { 448*0Sstevel@tonic-gate char **list; /* List being built */ 449*0Sstevel@tonic-gate char **pp; /* Temp ptr within list */ 450*0Sstevel@tonic-gate struct dgrplist *pdgrpent; /* Ptr into list of dgrps to return */ 451*0Sstevel@tonic-gate 452*0Sstevel@tonic-gate /* Allocate space for the list of pointers to device groups */ 453*0Sstevel@tonic-gate list = malloc((dgrplistcount+1)*sizeof (char *)); 454*0Sstevel@tonic-gate 455*0Sstevel@tonic-gate /* 456*0Sstevel@tonic-gate * For each item in the device group list, put an entry in the 457*0Sstevel@tonic-gate * list of names we're building 458*0Sstevel@tonic-gate */ 459*0Sstevel@tonic-gate if ((pp = list) != NULL) { 460*0Sstevel@tonic-gate for (pdgrpent = dgrplistfirst.next; pdgrpent; 461*0Sstevel@tonic-gate pdgrpent = pdgrpent->next) { 462*0Sstevel@tonic-gate 463*0Sstevel@tonic-gate *pp++ = pdgrpent->name; 464*0Sstevel@tonic-gate } 465*0Sstevel@tonic-gate /* The list ends with a null pointer */ 466*0Sstevel@tonic-gate *pp = NULL; 467*0Sstevel@tonic-gate } 468*0Sstevel@tonic-gate 469*0Sstevel@tonic-gate /* Return a pointer to the allocated list */ 470*0Sstevel@tonic-gate return (list); 471*0Sstevel@tonic-gate } 472*0Sstevel@tonic-gate 473*0Sstevel@tonic-gate /* 474*0Sstevel@tonic-gate * void freedgrplist() 475*0Sstevel@tonic-gate * 476*0Sstevel@tonic-gate * This function frees the resources allocated to the internal 477*0Sstevel@tonic-gate * linked list of device groups 478*0Sstevel@tonic-gate * 479*0Sstevel@tonic-gate * Arguments: none 480*0Sstevel@tonic-gate * 481*0Sstevel@tonic-gate * Returns: void 482*0Sstevel@tonic-gate */ 483*0Sstevel@tonic-gate 484*0Sstevel@tonic-gate static void 485*0Sstevel@tonic-gate freedgrplist(void) 486*0Sstevel@tonic-gate { 487*0Sstevel@tonic-gate struct dgrplist *pdgrpent; /* Dgrp to free */ 488*0Sstevel@tonic-gate struct dgrplist *nextnode; /* Next one to free */ 489*0Sstevel@tonic-gate 490*0Sstevel@tonic-gate for (pdgrpent = dgrplistfirst.next; pdgrpent; pdgrpent = nextnode) { 491*0Sstevel@tonic-gate nextnode = pdgrpent->next; 492*0Sstevel@tonic-gate free(pdgrpent); 493*0Sstevel@tonic-gate } 494*0Sstevel@tonic-gate } 495