1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1996,1999 by Internet Software Consortium. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * Permission to use, copy, modify, and distribute this software for any 10*0Sstevel@tonic-gate * purpose with or without fee is hereby granted, provided that the above 11*0Sstevel@tonic-gate * copyright notice and this permission notice appear in all copies. 12*0Sstevel@tonic-gate * 13*0Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 14*0Sstevel@tonic-gate * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 15*0Sstevel@tonic-gate * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 16*0Sstevel@tonic-gate * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 17*0Sstevel@tonic-gate * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 18*0Sstevel@tonic-gate * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 19*0Sstevel@tonic-gate * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 20*0Sstevel@tonic-gate * SOFTWARE. 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 23*0Sstevel@tonic-gate 24*0Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 25*0Sstevel@tonic-gate static const char rcsid[] = "$Id: util.c,v 1.12 2001/05/29 05:49:21 marka Exp $"; 26*0Sstevel@tonic-gate #endif 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate #include "port_before.h" 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #include <sys/types.h> 31*0Sstevel@tonic-gate #include <sys/socket.h> 32*0Sstevel@tonic-gate #include <netinet/in.h> 33*0Sstevel@tonic-gate #include <arpa/nameser.h> 34*0Sstevel@tonic-gate #include <resolv.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include <ctype.h> 37*0Sstevel@tonic-gate #include <errno.h> 38*0Sstevel@tonic-gate #include <stdio.h> 39*0Sstevel@tonic-gate #include <string.h> 40*0Sstevel@tonic-gate #include <stdlib.h> 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #include <irs.h> 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #include "port_after.h" 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #include "irs_p.h" 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #ifdef SPRINTF_CHAR 49*0Sstevel@tonic-gate # define SPRINTF(x) strlen(sprintf/**/x) 50*0Sstevel@tonic-gate #else 51*0Sstevel@tonic-gate # define SPRINTF(x) sprintf x 52*0Sstevel@tonic-gate #endif 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate void 55*0Sstevel@tonic-gate map_v4v6_address(const char *src, char *dst) { 56*0Sstevel@tonic-gate u_char *p = (u_char *)dst; 57*0Sstevel@tonic-gate char tmp[NS_INADDRSZ]; 58*0Sstevel@tonic-gate int i; 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* Stash a temporary copy so our caller can update in place. */ 61*0Sstevel@tonic-gate memcpy(tmp, src, NS_INADDRSZ); 62*0Sstevel@tonic-gate /* Mark this ipv6 addr as a mapped ipv4. */ 63*0Sstevel@tonic-gate for (i = 0; i < 10; i++) 64*0Sstevel@tonic-gate *p++ = 0x00; 65*0Sstevel@tonic-gate *p++ = 0xff; 66*0Sstevel@tonic-gate *p++ = 0xff; 67*0Sstevel@tonic-gate /* Retrieve the saved copy and we're done. */ 68*0Sstevel@tonic-gate memcpy((void*)p, tmp, NS_INADDRSZ); 69*0Sstevel@tonic-gate } 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate int 72*0Sstevel@tonic-gate make_group_list(struct irs_gr *this, const char *name, 73*0Sstevel@tonic-gate gid_t basegid, gid_t *groups, int *ngroups) 74*0Sstevel@tonic-gate { 75*0Sstevel@tonic-gate struct group *grp; 76*0Sstevel@tonic-gate int i, ng; 77*0Sstevel@tonic-gate int ret, maxgroups; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate ret = -1; 80*0Sstevel@tonic-gate ng = 0; 81*0Sstevel@tonic-gate maxgroups = *ngroups; 82*0Sstevel@tonic-gate /* 83*0Sstevel@tonic-gate * When installing primary group, duplicate it; 84*0Sstevel@tonic-gate * the first element of groups is the effective gid 85*0Sstevel@tonic-gate * and will be overwritten when a setgid file is executed. 86*0Sstevel@tonic-gate */ 87*0Sstevel@tonic-gate if (ng >= maxgroups) 88*0Sstevel@tonic-gate goto done; 89*0Sstevel@tonic-gate groups[ng++] = basegid; 90*0Sstevel@tonic-gate if (ng >= maxgroups) 91*0Sstevel@tonic-gate goto done; 92*0Sstevel@tonic-gate groups[ng++] = basegid; 93*0Sstevel@tonic-gate /* 94*0Sstevel@tonic-gate * Scan the group file to find additional groups. 95*0Sstevel@tonic-gate */ 96*0Sstevel@tonic-gate (*this->rewind)(this); 97*0Sstevel@tonic-gate while ((grp = (*this->next)(this)) != NULL) { 98*0Sstevel@tonic-gate if ((gid_t)grp->gr_gid == basegid) 99*0Sstevel@tonic-gate continue; 100*0Sstevel@tonic-gate for (i = 0; grp->gr_mem[i]; i++) { 101*0Sstevel@tonic-gate if (!strcmp(grp->gr_mem[i], name)) { 102*0Sstevel@tonic-gate if (ng >= maxgroups) 103*0Sstevel@tonic-gate goto done; 104*0Sstevel@tonic-gate groups[ng++] = grp->gr_gid; 105*0Sstevel@tonic-gate break; 106*0Sstevel@tonic-gate } 107*0Sstevel@tonic-gate } 108*0Sstevel@tonic-gate } 109*0Sstevel@tonic-gate ret = 0; 110*0Sstevel@tonic-gate done: 111*0Sstevel@tonic-gate *ngroups = ng; 112*0Sstevel@tonic-gate return (ret); 113*0Sstevel@tonic-gate } 114