1/* $NetBSD$ */ 2 3/* 4 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (c) 1996,1999 by Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 17 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20#if defined(LIBC_SCCS) && !defined(lint) 21static const char rcsid[] = "Id: util.c,v 1.3 2005/04/27 04:56:34 sra Exp "; 22#endif 23 24#include "port_before.h" 25 26#include <sys/types.h> 27#include <sys/socket.h> 28#include <netinet/in.h> 29#include <arpa/nameser.h> 30#include <resolv.h> 31 32#include <ctype.h> 33#include <errno.h> 34#include <stdio.h> 35#include <string.h> 36#include <stdlib.h> 37 38#include <irs.h> 39 40#include "port_after.h" 41 42#include "irs_p.h" 43 44#ifdef SPRINTF_CHAR 45# define SPRINTF(x) strlen(sprintf/**/x) 46#else 47# define SPRINTF(x) sprintf x 48#endif 49 50void 51map_v4v6_address(const char *src, char *dst) { 52 u_char *p = (u_char *)dst; 53 char tmp[NS_INADDRSZ]; 54 int i; 55 56 /* Stash a temporary copy so our caller can update in place. */ 57 memcpy(tmp, src, NS_INADDRSZ); 58 /* Mark this ipv6 addr as a mapped ipv4. */ 59 for (i = 0; i < 10; i++) 60 *p++ = 0x00; 61 *p++ = 0xff; 62 *p++ = 0xff; 63 /* Retrieve the saved copy and we're done. */ 64 memcpy((void*)p, tmp, NS_INADDRSZ); 65} 66 67int 68make_group_list(struct irs_gr *this, const char *name, 69 gid_t basegid, gid_t *groups, int *ngroups) 70{ 71 struct group *grp; 72 int i, ng; 73 int ret, maxgroups; 74 75 ret = -1; 76 ng = 0; 77 maxgroups = *ngroups; 78 /* 79 * When installing primary group, duplicate it; 80 * the first element of groups is the effective gid 81 * and will be overwritten when a setgid file is executed. 82 */ 83 if (ng >= maxgroups) 84 goto done; 85 groups[ng++] = basegid; 86 if (ng >= maxgroups) 87 goto done; 88 groups[ng++] = basegid; 89 /* 90 * Scan the group file to find additional groups. 91 */ 92 (*this->rewind)(this); 93 while ((grp = (*this->next)(this)) != NULL) { 94 if ((gid_t)grp->gr_gid == basegid) 95 continue; 96 for (i = 0; grp->gr_mem[i]; i++) { 97 if (!strcmp(grp->gr_mem[i], name)) { 98 if (ng >= maxgroups) 99 goto done; 100 groups[ng++] = grp->gr_gid; 101 break; 102 } 103 } 104 } 105 ret = 0; 106 done: 107 *ngroups = ng; 108 return (ret); 109} 110 111/*! \file */ 112