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e907f002a7
Review-note: The for loop increment operation was changed and the
trailing i++ was removed from the loop body.
The resulting for statement is equivalent to the original
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri May 8 11:16:18 UTC 2020 on sn-devel-184
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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lmhosts name resolution module
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Copyright (C) Andrew Tridgell 1994-1998,2005
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Copyright (C) Jeremy Allison 2007
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Copyright (C) Jelmer Vernooij 2007
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009-2014
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libcli/composite/composite.h"
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#include "libcli/resolve/resolve.h"
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#include "lib/socket/socket.h"
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#include "system/network.h"
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#include "lib/socket/netif.h"
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#include "param/param.h"
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#include "lib/util/util_net.h"
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#include "libcli/nbt/libnbt.h"
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#include "dynconfig.h"
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struct resolve_lmhosts_state {
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struct socket_address **addrs;
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char **names;
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};
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/**
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lmhosts name resolution method - async send
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*/
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/*
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general name resolution - async send
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*/
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static struct composite_context *resolve_name_lmhosts_send(
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TALLOC_CTX *mem_ctx,
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struct tevent_context *event_ctx,
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void *userdata, uint32_t flags,
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uint16_t port,
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struct nbt_name *name)
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{
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struct composite_context *c;
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struct resolve_lmhosts_state *state;
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struct sockaddr_storage *resolved_iplist;
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int resolved_count, i;
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if (event_ctx == NULL) {
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return NULL;
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}
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c = composite_create(mem_ctx, event_ctx);
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if (c == NULL) return NULL;
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if (composite_nomem(c->event_ctx, c)) return c;
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state = talloc_zero(c, struct resolve_lmhosts_state);
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if (composite_nomem(state, c)) return c;
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c->private_data = state;
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c->status = resolve_lmhosts_file_as_sockaddr(dyn_LMHOSTSFILE, name->name, name->type,
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state, &resolved_iplist, &resolved_count);
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if (!composite_is_ok(c)) return c;
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for (i=0; i < resolved_count; i += 2) {
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state->addrs = talloc_realloc(state, state->addrs, struct socket_address *, i+2);
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if (composite_nomem(state->addrs, c)) return c;
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set_sockaddr_port((struct sockaddr *)&resolved_iplist[i], port);
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state->addrs[i] = socket_address_from_sockaddr(state->addrs, (struct sockaddr *)&resolved_iplist[i], sizeof(resolved_iplist[i]));
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if (composite_nomem(state->addrs[i], c)) return c;
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state->addrs[i+1] = NULL;
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state->names = talloc_realloc(state, state->names, char *, i+2);
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if (composite_nomem(state->addrs, c)) return c;
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state->names[i] = talloc_strdup(state->names, name->name);
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if (composite_nomem(state->names[i], c)) return c;
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state->names[i+1] = NULL;
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}
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composite_done(c);
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return c;
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}
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/*
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general name resolution method - recv side
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*/
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static NTSTATUS resolve_name_lmhosts_recv(struct composite_context *c,
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TALLOC_CTX *mem_ctx,
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struct socket_address ***addrs,
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char ***names)
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{
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NTSTATUS status;
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status = composite_wait(c);
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if (NT_STATUS_IS_OK(status)) {
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struct resolve_lmhosts_state *state = talloc_get_type(c->private_data, struct resolve_lmhosts_state);
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*addrs = talloc_steal(mem_ctx, state->addrs);
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if (names) {
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*names = talloc_steal(mem_ctx, state->names);
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}
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}
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talloc_free(c);
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return status;
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}
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bool resolve_context_add_lmhosts_method(struct resolve_context *ctx)
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{
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return resolve_context_add_method(ctx, resolve_name_lmhosts_send, resolve_name_lmhosts_recv, NULL);
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}
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