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 /* 23*0Sstevel@tonic-gate * Copyright (c) 1994, by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* 28*0Sstevel@tonic-gate * For SUNWnskit - version 1.1 29*0Sstevel@tonic-gate * 30*0Sstevel@tonic-gate * Based on: 31*0Sstevel@tonic-gate * #pragma ident "%Z%%M% %I% %E% SMI" (SMI4.1 1.6) 32*0Sstevel@tonic-gate */ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #include <stdlib.h> 35*0Sstevel@tonic-gate #include <unistd.h> 36*0Sstevel@tonic-gate #include <string.h> 37*0Sstevel@tonic-gate #include <stdio.h> 38*0Sstevel@tonic-gate #include <ctype.h> 39*0Sstevel@tonic-gate #include <pwd.h> 40*0Sstevel@tonic-gate #include <rpcsvc/ypclnt.h> 41*0Sstevel@tonic-gate #include "util.h" 42*0Sstevel@tonic-gate #include "table.h" 43*0Sstevel@tonic-gate #include "getgroup.h" 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #define MAXDOMAINLEN 256 46*0Sstevel@tonic-gate #define MAXGROUPLEN 1024 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * Reverse the netgroup file. A flag of "-u" means reverse by username, 50*0Sstevel@tonic-gate * one of "-h" means reverse by hostname. Each line in the output file 51*0Sstevel@tonic-gate * will begin with a key formed by concatenating the host or user name 52*0Sstevel@tonic-gate * with the domain name. The key will be followed by a tab, then the 53*0Sstevel@tonic-gate * comma-separated, newline-terminated list of groups to which the 54*0Sstevel@tonic-gate * user or host belongs. 55*0Sstevel@tonic-gate * 56*0Sstevel@tonic-gate * Exception: Groups to which everyone belongs (universal groups) will 57*0Sstevel@tonic-gate * not be included in the list. The universal groups will be listed under 58*0Sstevel@tonic-gate * the special name "*". 59*0Sstevel@tonic-gate * 60*0Sstevel@tonic-gate * Thus to find out all the groups that user "foo" of domain "bar" is in, 61*0Sstevel@tonic-gate * lookup the groups under foo.bar, foo.*, *.bar and *.*. 62*0Sstevel@tonic-gate * 63*0Sstevel@tonic-gate */ 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* Stores a list of strings */ 68*0Sstevel@tonic-gate typedef struct stringnode *stringlist; 69*0Sstevel@tonic-gate struct stringnode { 70*0Sstevel@tonic-gate char *str; 71*0Sstevel@tonic-gate stringlist next; 72*0Sstevel@tonic-gate }; 73*0Sstevel@tonic-gate typedef struct stringnode stringnode; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate /* Stores a list of (name,list-of-groups) */ 78*0Sstevel@tonic-gate typedef struct groupentrynode *groupentrylist; 79*0Sstevel@tonic-gate struct groupentrynode { 80*0Sstevel@tonic-gate char *name; 81*0Sstevel@tonic-gate stringlist groups; 82*0Sstevel@tonic-gate groupentrylist next; 83*0Sstevel@tonic-gate }; 84*0Sstevel@tonic-gate typedef struct groupentrynode groupentrynode; 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate stringtable ngtable; 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate static groupentrylist grouptable[TABLESIZE]; 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate static char *nextgroup(void); 91*0Sstevel@tonic-gate static void storegroup(char *group, struct grouplist *glist, int byuser); 92*0Sstevel@tonic-gate static void enter(char *name, char *group); 93*0Sstevel@tonic-gate static void appendgroup(groupentrylist grlist, char *group); 94*0Sstevel@tonic-gate static groupentrylist newentry(char *name, char *group); 95*0Sstevel@tonic-gate static void loadtable(FILE *nf); 96*0Sstevel@tonic-gate static void dumptable(void); 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate int 99*0Sstevel@tonic-gate main(argc, argv) 100*0Sstevel@tonic-gate int argc; 101*0Sstevel@tonic-gate char *argv[]; 102*0Sstevel@tonic-gate { 103*0Sstevel@tonic-gate char *group; 104*0Sstevel@tonic-gate struct grouplist *glist; 105*0Sstevel@tonic-gate int byuser; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate loadtable(stdin); 108*0Sstevel@tonic-gate if (argc == 2 && argv[1][0] == '-' && 109*0Sstevel@tonic-gate (argv[1][1] == 'u' || argv[1][1] == 'h')) { 110*0Sstevel@tonic-gate byuser = (argv[1][1] == 'u'); 111*0Sstevel@tonic-gate } else { 112*0Sstevel@tonic-gate (void) fprintf(stderr, 113*0Sstevel@tonic-gate "usage: %s -h (by host), %s -u (by user)\n", 114*0Sstevel@tonic-gate argv[0], argv[0]); 115*0Sstevel@tonic-gate exit(1); 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate while (group = nextgroup()) { 119*0Sstevel@tonic-gate glist = my_getgroup(group); 120*0Sstevel@tonic-gate storegroup(group, glist, byuser); 121*0Sstevel@tonic-gate } 122*0Sstevel@tonic-gate dumptable(); 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate return (0); 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate /* 128*0Sstevel@tonic-gate * Get the next netgroup from /etc/netgroup 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate static char * 131*0Sstevel@tonic-gate nextgroup(void) 132*0Sstevel@tonic-gate { 133*0Sstevel@tonic-gate static int index = -1; 134*0Sstevel@tonic-gate static tablelist cur = NULL; 135*0Sstevel@tonic-gate char *group; 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate while (cur == NULL) { 138*0Sstevel@tonic-gate if (++index == TABLESIZE) { 139*0Sstevel@tonic-gate return (NULL); 140*0Sstevel@tonic-gate } 141*0Sstevel@tonic-gate cur = ngtable[index]; 142*0Sstevel@tonic-gate } 143*0Sstevel@tonic-gate group = cur->key; 144*0Sstevel@tonic-gate cur = cur->next; 145*0Sstevel@tonic-gate return (group); 146*0Sstevel@tonic-gate } 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate /* 151*0Sstevel@tonic-gate * Dump out all of the stored info into a file 152*0Sstevel@tonic-gate */ 153*0Sstevel@tonic-gate static void 154*0Sstevel@tonic-gate dumptable(void) 155*0Sstevel@tonic-gate { 156*0Sstevel@tonic-gate int i; 157*0Sstevel@tonic-gate groupentrylist entry; 158*0Sstevel@tonic-gate stringlist groups; 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate for (i = 0; i < TABLESIZE; i++) { 161*0Sstevel@tonic-gate if (entry = grouptable[i]) { 162*0Sstevel@tonic-gate while (entry) { 163*0Sstevel@tonic-gate fputs(entry->name, stdout); 164*0Sstevel@tonic-gate putc('\t', stdout); 165*0Sstevel@tonic-gate for (groups = entry->groups; groups; 166*0Sstevel@tonic-gate groups = groups->next) { 167*0Sstevel@tonic-gate fputs(groups->str, stdout); 168*0Sstevel@tonic-gate if (groups->next) { 169*0Sstevel@tonic-gate putc(',', stdout); 170*0Sstevel@tonic-gate } 171*0Sstevel@tonic-gate } 172*0Sstevel@tonic-gate putc('\n', stdout); 173*0Sstevel@tonic-gate entry = entry->next; 174*0Sstevel@tonic-gate } 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate 181*0Sstevel@tonic-gate 182*0Sstevel@tonic-gate /* 183*0Sstevel@tonic-gate * Add a netgroup to a user's list of netgroups 184*0Sstevel@tonic-gate */ 185*0Sstevel@tonic-gate static void 186*0Sstevel@tonic-gate storegroup(char *group, struct grouplist *glist, int byuser) 187*0Sstevel@tonic-gate { 188*0Sstevel@tonic-gate char *name; /* username or hostname */ 189*0Sstevel@tonic-gate char *domain; 190*0Sstevel@tonic-gate char *key; 191*0Sstevel@tonic-gate static char *universal = "*"; 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate for (; glist; glist = glist->gl_nxt) { 194*0Sstevel@tonic-gate name = byuser ? glist->gl_name : glist->gl_machine; 195*0Sstevel@tonic-gate if (!name) { 196*0Sstevel@tonic-gate name = universal; 197*0Sstevel@tonic-gate } else if (!isalnum(*name) && *name != '_') { 198*0Sstevel@tonic-gate continue; 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate domain = glist->gl_domain; 201*0Sstevel@tonic-gate if (!domain) { 202*0Sstevel@tonic-gate domain = universal; 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate key = malloc((unsigned) (strlen(name)+strlen(domain)+2)); 205*0Sstevel@tonic-gate (void) sprintf(key, "%s.%s", name, domain); 206*0Sstevel@tonic-gate enter(key, group); 207*0Sstevel@tonic-gate } 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate static groupentrylist 213*0Sstevel@tonic-gate newentry(char *name, char *group) 214*0Sstevel@tonic-gate { 215*0Sstevel@tonic-gate groupentrylist new; 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate new = MALLOC(groupentrynode); 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate STRCPY(new->name, name); 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate new->groups = MALLOC(stringnode); 222*0Sstevel@tonic-gate new->groups->str = group; 223*0Sstevel@tonic-gate new->groups->next = NULL; 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate new->next = NULL; 226*0Sstevel@tonic-gate return (new); 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate static void 230*0Sstevel@tonic-gate appendgroup(groupentrylist grlist, char *group) 231*0Sstevel@tonic-gate { 232*0Sstevel@tonic-gate stringlist cur, prev; 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate for (cur = grlist->groups; cur; prev = cur, cur = cur->next) { 235*0Sstevel@tonic-gate if (strcmp(group, cur->str) == 0) { 236*0Sstevel@tonic-gate return; 237*0Sstevel@tonic-gate } 238*0Sstevel@tonic-gate } 239*0Sstevel@tonic-gate prev->next = MALLOC(stringnode); 240*0Sstevel@tonic-gate cur = prev->next; 241*0Sstevel@tonic-gate cur->str = group; 242*0Sstevel@tonic-gate cur->next = NULL; 243*0Sstevel@tonic-gate } 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate static void 246*0Sstevel@tonic-gate enter(char *name, char *group) 247*0Sstevel@tonic-gate { 248*0Sstevel@tonic-gate int key; 249*0Sstevel@tonic-gate groupentrylist gel; 250*0Sstevel@tonic-gate groupentrylist gelprev; 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate key = tablekey(name); 253*0Sstevel@tonic-gate if (grouptable[key] == NULL) { 254*0Sstevel@tonic-gate grouptable[key] = newentry(name, group); 255*0Sstevel@tonic-gate } else { 256*0Sstevel@tonic-gate gel = grouptable[key]; 257*0Sstevel@tonic-gate while (gel && strcmp(gel->name, name)) { 258*0Sstevel@tonic-gate gelprev = gel; 259*0Sstevel@tonic-gate gel = gel->next; 260*0Sstevel@tonic-gate } 261*0Sstevel@tonic-gate if (gel) { 262*0Sstevel@tonic-gate appendgroup(gel, group); 263*0Sstevel@tonic-gate } else { 264*0Sstevel@tonic-gate gelprev->next = newentry(name, group); 265*0Sstevel@tonic-gate } 266*0Sstevel@tonic-gate } 267*0Sstevel@tonic-gate } 268*0Sstevel@tonic-gate 269*0Sstevel@tonic-gate /* 270*0Sstevel@tonic-gate * Load up a hash table with the info in /etc/netgroup 271*0Sstevel@tonic-gate */ 272*0Sstevel@tonic-gate static void 273*0Sstevel@tonic-gate loadtable(FILE *nf) 274*0Sstevel@tonic-gate { 275*0Sstevel@tonic-gate char buf[MAXGROUPLEN]; 276*0Sstevel@tonic-gate char *p; 277*0Sstevel@tonic-gate char *group; 278*0Sstevel@tonic-gate char *line; 279*0Sstevel@tonic-gate 280*0Sstevel@tonic-gate while (getline(buf, MAXGROUPLEN, nf)) { 281*0Sstevel@tonic-gate for (p = buf; *p && isspace((int)*p); p++) 282*0Sstevel@tonic-gate ; /* skip leading blanks */ 283*0Sstevel@tonic-gate for (; *p && *p != '#' && *p != ' ' && *p != '\t'; p++) 284*0Sstevel@tonic-gate ; 285*0Sstevel@tonic-gate if (*p == EOS || *p == '#') 286*0Sstevel@tonic-gate continue; 287*0Sstevel@tonic-gate *p++ = EOS; 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate while (*p == ' ' || *p == '\t') { 290*0Sstevel@tonic-gate p++; 291*0Sstevel@tonic-gate } 292*0Sstevel@tonic-gate if (*p == EOS || *p == '#') 293*0Sstevel@tonic-gate continue; 294*0Sstevel@tonic-gate 295*0Sstevel@tonic-gate STRCPY(group, buf); 296*0Sstevel@tonic-gate STRCPY(line, p); 297*0Sstevel@tonic-gate store(ngtable, group, line); 298*0Sstevel@tonic-gate } 299*0Sstevel@tonic-gate } 300