110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/* $NetBSD: util.c,v 1.2 2001/01/27 07:22:04 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996,1999 by Internet Software Consortium.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
|
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
|
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
|
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static const char rcsid[] = "Id: util.c,v 1.11 2000/02/04 08:28:33 vixie Exp";
|
|
#endif
|
|
|
|
#include "port_before.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/nameser.h>
|
|
#include <resolv.h>
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <irs.h>
|
|
|
|
#include "port_after.h"
|
|
|
|
#include "irs_p.h"
|
|
|
|
#ifdef SPRINTF_CHAR
|
|
# define SPRINTF(x) strlen(sprintf/**/x)
|
|
#else
|
|
# define SPRINTF(x) sprintf x
|
|
#endif
|
|
|
|
void
|
|
map_v4v6_address(const char *src, char *dst) {
|
|
u_char *p = (u_char *)dst;
|
|
char tmp[NS_INADDRSZ];
|
|
int i;
|
|
|
|
/* Stash a temporary copy so our caller can update in place. */
|
|
memcpy(tmp, src, NS_INADDRSZ);
|
|
/* Mark this ipv6 addr as a mapped ipv4. */
|
|
for (i = 0; i < 10; i++)
|
|
*p++ = 0x00;
|
|
*p++ = 0xff;
|
|
*p++ = 0xff;
|
|
/* Retrieve the saved copy and we're done. */
|
|
memcpy((void*)p, tmp, NS_INADDRSZ);
|
|
}
|
|
|
|
int
|
|
make_group_list(struct irs_gr *this, const char *name,
|
|
gid_t basegid, gid_t *groups, int *ngroups)
|
|
{
|
|
struct group *grp;
|
|
int i, ng;
|
|
int ret, maxgroups;
|
|
|
|
ret = -1;
|
|
ng = 0;
|
|
maxgroups = *ngroups;
|
|
/*
|
|
* When installing primary group, duplicate it;
|
|
* the first element of groups is the effective gid
|
|
* and will be overwritten when a setgid file is executed.
|
|
*/
|
|
if (ng >= maxgroups)
|
|
goto done;
|
|
groups[ng++] = basegid;
|
|
if (ng >= maxgroups)
|
|
goto done;
|
|
groups[ng++] = basegid;
|
|
/*
|
|
* Scan the group file to find additional groups.
|
|
*/
|
|
(*this->rewind)(this);
|
|
while ((grp = (*this->next)(this)) != NULL) {
|
|
if (grp->gr_gid == basegid)
|
|
continue;
|
|
for (i = 0; grp->gr_mem[i]; i++) {
|
|
if (!strcmp(grp->gr_mem[i], name)) {
|
|
if (ng >= maxgroups)
|
|
goto done;
|
|
groups[ng++] = grp->gr_gid;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
ret = 0;
|
|
done:
|
|
*ngroups = ng;
|
|
return (ret);
|
|
}
|