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-rw-r--r--lib/bind/irs/nis_pr.c302
1 files changed, 302 insertions, 0 deletions
diff --git a/lib/bind/irs/nis_pr.c b/lib/bind/irs/nis_pr.c
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--- /dev/null
+++ b/lib/bind/irs/nis_pr.c
@@ -0,0 +1,302 @@
+/*
+ * 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: nis_pr.c,v 1.3.18.1 2005/04/27 05:01:04 sra Exp $";
+#endif
+
+/* Imports */
+
+#include "port_before.h"
+
+#ifndef WANT_IRS_NIS
+static int __bind_irs_nis_unneeded;
+#else
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+#ifdef T_NULL
+#undef T_NULL /* Silence re-definition warning of T_NULL. */
+#endif
+#include <rpc/rpc.h>
+#include <rpc/xdr.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <netdb.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <isc/memcluster.h>
+#include <irs.h>
+
+#include "port_after.h"
+
+#include "irs_p.h"
+#include "nis_p.h"
+
+/* Definitions */
+
+struct pvt {
+ int needrewind;
+ char * nis_domain;
+ char * curkey_data;
+ int curkey_len;
+ char * curval_data;
+ int curval_len;
+ struct protoent proto;
+ char * prbuf;
+};
+
+enum do_what { do_none = 0x0, do_key = 0x1, do_val = 0x2, do_all = 0x3 };
+
+static /*const*/ char protocols_byname[] = "protocols.byname";
+static /*const*/ char protocols_bynumber[] = "protocols.bynumber";
+
+/* Forward */
+
+static void pr_close(struct irs_pr *);
+static struct protoent * pr_byname(struct irs_pr *, const char *);
+static struct protoent * pr_bynumber(struct irs_pr *, int);
+static struct protoent * pr_next(struct irs_pr *);
+static void pr_rewind(struct irs_pr *);
+static void pr_minimize(struct irs_pr *);
+
+static struct protoent * makeprotoent(struct irs_pr *this);
+static void nisfree(struct pvt *, enum do_what);
+
+/* Public */
+
+struct irs_pr *
+irs_nis_pr(struct irs_acc *this) {
+ struct irs_pr *pr;
+ struct pvt *pvt;
+
+ if (!(pr = memget(sizeof *pr))) {
+ errno = ENOMEM;
+ return (NULL);
+ }
+ memset(pr, 0x5e, sizeof *pr);
+ if (!(pvt = memget(sizeof *pvt))) {
+ memput(pr, sizeof *pr);
+ errno = ENOMEM;
+ return (NULL);
+ }
+ memset(pvt, 0, sizeof *pvt);
+ pvt->needrewind = 1;
+ pvt->nis_domain = ((struct nis_p *)this->private)->domain;
+ pr->private = pvt;
+ pr->byname = pr_byname;
+ pr->bynumber = pr_bynumber;
+ pr->next = pr_next;
+ pr->rewind = pr_rewind;
+ pr->close = pr_close;
+ pr->minimize = pr_minimize;
+ pr->res_get = NULL;
+ pr->res_set = NULL;
+ return (pr);
+}
+
+/* Methods. */
+
+static void
+pr_close(struct irs_pr *this) {
+ struct pvt *pvt = (struct pvt *)this->private;
+
+ nisfree(pvt, do_all);
+ if (pvt->proto.p_aliases)
+ free(pvt->proto.p_aliases);
+ if (pvt->prbuf)
+ free(pvt->prbuf);
+ memput(pvt, sizeof *pvt);
+ memput(this, sizeof *this);
+}
+
+static struct protoent *
+pr_byname(struct irs_pr *this, const char *name) {
+ struct pvt *pvt = (struct pvt *)this->private;
+ int r;
+ char *tmp;
+
+ nisfree(pvt, do_val);
+ DE_CONST(name, tmp);
+ r = yp_match(pvt->nis_domain, protocols_byname, tmp,
+ strlen(tmp), &pvt->curval_data, &pvt->curval_len);
+ if (r != 0) {
+ errno = ENOENT;
+ return (NULL);
+ }
+ return (makeprotoent(this));
+}
+
+static struct protoent *
+pr_bynumber(struct irs_pr *this, int num) {
+ struct pvt *pvt = (struct pvt *)this->private;
+ char tmp[sizeof "-4294967295"];
+ int r;
+
+ nisfree(pvt, do_val);
+ (void) sprintf(tmp, "%d", num);
+ r = yp_match(pvt->nis_domain, protocols_bynumber, tmp, strlen(tmp),
+ &pvt->curval_data, &pvt->curval_len);
+ if (r != 0) {
+ errno = ENOENT;
+ return (NULL);
+ }
+ return (makeprotoent(this));
+}
+
+static struct protoent *
+pr_next(struct irs_pr *this) {
+ struct pvt *pvt = (struct pvt *)this->private;
+ struct protoent *rval;
+ int r;
+
+ do {
+ if (pvt->needrewind) {
+ nisfree(pvt, do_all);
+ r = yp_first(pvt->nis_domain, protocols_bynumber,
+ &pvt->curkey_data, &pvt->curkey_len,
+ &pvt->curval_data, &pvt->curval_len);
+ pvt->needrewind = 0;
+ } else {
+ char *newkey_data;
+ int newkey_len;
+
+ nisfree(pvt, do_val);
+ r = yp_next(pvt->nis_domain, protocols_bynumber,
+ pvt->curkey_data, pvt->curkey_len,
+ &newkey_data, &newkey_len,
+ &pvt->curval_data, &pvt->curval_len);
+ nisfree(pvt, do_key);
+ pvt->curkey_data = newkey_data;
+ pvt->curkey_len = newkey_len;
+ }
+ if (r != 0) {
+ errno = ENOENT;
+ return (NULL);
+ }
+ rval = makeprotoent(this);
+ } while (rval == NULL);
+ return (rval);
+}
+
+static void
+pr_rewind(struct irs_pr *this) {
+ struct pvt *pvt = (struct pvt *)this->private;
+
+ pvt->needrewind = 1;
+}
+
+static void
+pr_minimize(struct irs_pr *this) {
+ UNUSED(this);
+ /* NOOP */
+}
+
+/* Private */
+
+static struct protoent *
+makeprotoent(struct irs_pr *this) {
+ struct pvt *pvt = (struct pvt *)this->private;
+ char *p, **t;
+ int n, m;
+
+ if (pvt->prbuf)
+ free(pvt->prbuf);
+ pvt->prbuf = pvt->curval_data;
+ pvt->curval_data = NULL;
+
+ for (p = pvt->prbuf; *p && *p != '#';)
+ p++;
+ while (p > pvt->prbuf && isspace((unsigned char)(p[-1])))
+ p--;
+ *p = '\0';
+
+ p = pvt->prbuf;
+ n = m = 0;
+
+ pvt->proto.p_name = p;
+ while (*p && !isspace((unsigned char)*p))
+ p++;
+ if (!*p)
+ return (NULL);
+ *p++ = '\0';
+
+ while (*p && isspace((unsigned char)*p))
+ p++;
+ pvt->proto.p_proto = atoi(p);
+ while (*p && !isspace((unsigned char)*p))
+ p++;
+ *p++ = '\0';
+
+ while (*p) {
+ if ((n + 1) >= m || !pvt->proto.p_aliases) {
+ m += 10;
+ t = realloc(pvt->proto.p_aliases,
+ m * sizeof(char *));
+ if (!t) {
+ errno = ENOMEM;
+ goto cleanup;
+ }
+ pvt->proto.p_aliases = t;
+ }
+ pvt->proto.p_aliases[n++] = p;
+ while (*p && !isspace((unsigned char)*p))
+ p++;
+ if (*p)
+ *p++ = '\0';
+ }
+ if (!pvt->proto.p_aliases)
+ pvt->proto.p_aliases = malloc(sizeof(char *));
+ if (!pvt->proto.p_aliases)
+ goto cleanup;
+ pvt->proto.p_aliases[n] = NULL;
+ return (&pvt->proto);
+
+ cleanup:
+ if (pvt->proto.p_aliases) {
+ free(pvt->proto.p_aliases);
+ pvt->proto.p_aliases = NULL;
+ }
+ if (pvt->prbuf) {
+ free(pvt->prbuf);
+ pvt->prbuf = NULL;
+ }
+ return (NULL);
+}
+
+static void
+nisfree(struct pvt *pvt, enum do_what do_what) {
+ if ((do_what & do_key) && pvt->curkey_data) {
+ free(pvt->curkey_data);
+ pvt->curkey_data = NULL;
+ }
+ if ((do_what & do_val) && pvt->curval_data) {
+ free(pvt->curval_data);
+ pvt->curval_data = NULL;
+ }
+}
+
+#endif /*WANT_IRS_NIS*/
+
+/*! \file */
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