diff options
Diffstat (limited to 'contrib/bind9/lib/bind/irs/dns_gr.c')
-rw-r--r-- | contrib/bind9/lib/bind/irs/dns_gr.c | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/contrib/bind9/lib/bind/irs/dns_gr.c b/contrib/bind9/lib/bind/irs/dns_gr.c deleted file mode 100644 index a35b10ca0435..000000000000 --- a/contrib/bind9/lib/bind/irs/dns_gr.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * 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 ISC DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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: dns_gr.c,v 1.1.2.1.4.1 2004/03/09 08:33:34 marka Exp $"; -#endif - -/* - * dns_gr.c --- this file contains the functions for accessing - * group information from Hesiod. - */ - -#include "port_before.h" - -#ifndef WANT_IRS_GR -static int __bind_irs_gr_unneeded; -#else - -#include <sys/param.h> -#include <sys/types.h> - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> - -#include <sys/types.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <resolv.h> - -#include <isc/memcluster.h> - -#include <irs.h> - -#include "port_after.h" - -#include "irs_p.h" -#include "hesiod.h" -#include "dns_p.h" - -/* Types. */ - -struct pvt { - /* - * This is our private accessor data. It has a shared hesiod context. - */ - struct dns_p * dns; - /* - * Need space to store the entries read from the group file. - * The members list also needs space per member, and the - * strings making up the user names must be allocated - * somewhere. Rather than doing lots of small allocations, - * we keep one buffer and resize it as needed. - */ - struct group group; - size_t nmemb; /* Malloc'd max index of gr_mem[]. */ - char * membuf; - size_t membufsize; -}; - -/* Forward. */ - -static struct group * gr_next(struct irs_gr *); -static struct group * gr_byname(struct irs_gr *, const char *); -static struct group * gr_bygid(struct irs_gr *, gid_t); -static void gr_rewind(struct irs_gr *); -static void gr_close(struct irs_gr *); -static int gr_list(struct irs_gr *, const char *, - gid_t, gid_t *, int *); -static void gr_minimize(struct irs_gr *); -static struct __res_state * gr_res_get(struct irs_gr *); -static void gr_res_set(struct irs_gr *, - struct __res_state *, - void (*)(void *)); - -static struct group * get_hes_group(struct irs_gr *this, - const char *name, - const char *type); - -/* Public. */ - -struct irs_gr * -irs_dns_gr(struct irs_acc *this) { - struct dns_p *dns = (struct dns_p *)this->private; - struct irs_gr *gr; - struct pvt *pvt; - - if (!dns || !dns->hes_ctx) { - errno = ENODEV; - return (NULL); - } - if (!(pvt = memget(sizeof *pvt))) { - errno = ENOMEM; - return (NULL); - } - memset(pvt, 0, sizeof *pvt); - pvt->dns = dns; - if (!(gr = memget(sizeof *gr))) { - memput(pvt, sizeof *pvt); - errno = ENOMEM; - return (NULL); - } - memset(gr, 0x5e, sizeof *gr); - gr->private = pvt; - gr->next = gr_next; - gr->byname = gr_byname; - gr->bygid = gr_bygid; - gr->rewind = gr_rewind; - gr->close = gr_close; - gr->list = gr_list; - gr->minimize = gr_minimize; - gr->res_get = gr_res_get; - gr->res_set = gr_res_set; - return (gr); -} - -/* methods */ - -static void -gr_close(struct irs_gr *this) { - struct pvt *pvt = (struct pvt *)this->private; - - if (pvt->group.gr_mem) - free(pvt->group.gr_mem); - if (pvt->membuf) - free(pvt->membuf); - memput(pvt, sizeof *pvt); - memput(this, sizeof *this); -} - -static struct group * -gr_next(struct irs_gr *this) { - - UNUSED(this); - - return (NULL); -} - -static struct group * -gr_byname(struct irs_gr *this, const char *name) { - return (get_hes_group(this, name, "group")); -} - -static struct group * -gr_bygid(struct irs_gr *this, gid_t gid) { - char name[32]; - - sprintf(name, "%ld", (long)gid); - return (get_hes_group(this, name, "gid")); -} - -static void -gr_rewind(struct irs_gr *this) { - - UNUSED(this); - - /* NOOP */ -} - -static int -gr_list(struct irs_gr *this, const char *name, - gid_t basegid, gid_t *groups, int *ngroups) -{ - UNUSED(this); - UNUSED(name); - UNUSED(basegid); - UNUSED(groups); - - *ngroups = 0; - /* There's some way to do this in Hesiod. */ - return (-1); -} - -static void -gr_minimize(struct irs_gr *this) { - - UNUSED(this); - /* NOOP */ -} - -/* Private. */ - -static struct group * -get_hes_group(struct irs_gr *this, const char *name, const char *type) { - struct pvt *pvt = (struct pvt *)this->private; - char **hes_list, *cp, **new; - size_t num_members = 0; - u_long t; - - hes_list = hesiod_resolve(pvt->dns->hes_ctx, name, type); - if (!hes_list) - return (NULL); - - /* - * Copy the returned hesiod string into storage space. - */ - if (pvt->membuf) - free(pvt->membuf); - pvt->membuf = strdup(*hes_list); - hesiod_free_list(pvt->dns->hes_ctx, hes_list); - - cp = pvt->membuf; - pvt->group.gr_name = cp; - if (!(cp = strchr(cp, ':'))) - goto cleanup; - *cp++ = '\0'; - - pvt->group.gr_passwd = cp; - if (!(cp = strchr(cp, ':'))) - goto cleanup; - *cp++ = '\0'; - - errno = 0; - t = strtoul(cp, NULL, 10); - if (errno == ERANGE) - goto cleanup; - pvt->group.gr_gid = (gid_t) t; - if (!(cp = strchr(cp, ':'))) - goto cleanup; - cp++; - - /* - * Parse the members out. - */ - while (*cp) { - if (num_members+1 >= pvt->nmemb || pvt->group.gr_mem == NULL) { - pvt->nmemb += 10; - new = realloc(pvt->group.gr_mem, - pvt->nmemb * sizeof(char *)); - if (new == NULL) - goto cleanup; - pvt->group.gr_mem = new; - } - pvt->group.gr_mem[num_members++] = cp; - if (!(cp = strchr(cp, ','))) - break; - *cp++ = '\0'; - } - if (!pvt->group.gr_mem) { - pvt->group.gr_mem = malloc(sizeof(char*)); - if (!pvt->group.gr_mem) - goto cleanup; - } - pvt->group.gr_mem[num_members] = NULL; - - return (&pvt->group); - - cleanup: - if (pvt->group.gr_mem) { - free(pvt->group.gr_mem); - pvt->group.gr_mem = NULL; - } - if (pvt->membuf) { - free(pvt->membuf); - pvt->membuf = NULL; - } - return (NULL); -} - -static struct __res_state * -gr_res_get(struct irs_gr *this) { - struct pvt *pvt = (struct pvt *)this->private; - struct dns_p *dns = pvt->dns; - - return (__hesiod_res_get(dns->hes_ctx)); -} - -static void -gr_res_set(struct irs_gr *this, struct __res_state * res, - void (*free_res)(void *)) { - struct pvt *pvt = (struct pvt *)this->private; - struct dns_p *dns = pvt->dns; - - __hesiod_res_set(dns->hes_ctx, res, free_res); -} - -#endif /* WANT_IRS_GR */ |