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https://github.com/samba-team/samba.git
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0479a2f1cb
There are still a few tidyups of old FSF addresses to come (in both s3
and s4). More commits soon.
(This used to be commit fcf38a38ac)
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/*
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Unix SMB/CIFS implementation.
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wins hook feature, we run a specified script
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which can then do some custom actions
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Copyright (C) Stefan Metzmacher 2005
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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 "nbt_server/nbt_server.h"
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#include "nbt_server/wins/winsdb.h"
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#include "system/filesys.h"
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static const char *wins_hook_action_string(enum wins_hook_action action)
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{
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switch (action) {
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case WINS_HOOK_ADD: return "add";
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case WINS_HOOK_MODIFY: return "refresh";
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case WINS_HOOK_DELETE: return "delete";
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}
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return "unknown";
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}
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void wins_hook(struct winsdb_handle *h, const struct winsdb_record *rec, enum wins_hook_action action)
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{
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const char *script = lp_wins_hook();
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uint32_t i, length;
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int child;
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char *cmd = NULL;
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TALLOC_CTX *tmp_mem = NULL;
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if (!script || !script[0]) return;
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tmp_mem = talloc_new(h);
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if (!tmp_mem) goto failed;
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length = winsdb_addr_list_length(rec->addresses);
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if (action == WINS_HOOK_MODIFY && length < 1) {
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action = WINS_HOOK_DELETE;
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}
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cmd = talloc_asprintf(tmp_mem,
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"%s %s %s %02x %ld",
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script,
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wins_hook_action_string(action),
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rec->name->name,
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rec->name->type,
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rec->expire_time);
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if (!cmd) goto failed;
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for (i=0; rec->addresses[i]; i++) {
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cmd = talloc_asprintf_append(cmd, " %s", rec->addresses[i]->address);
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if (!cmd) goto failed;
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}
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DEBUG(10,("call wins hook '%s'\n", cmd));
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/* signal handling in posix really sucks - doing this in a library
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affects the whole app, but what else to do?? */
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signal(SIGCHLD, SIG_IGN);
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child = fork();
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if (child == (pid_t)-1) {
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goto failed;
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}
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if (child == 0) {
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/* TODO: close file handles */
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execl("/bin/sh", "sh", "-c", cmd, NULL);
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_exit(0);
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}
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talloc_free(tmp_mem);
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return;
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failed:
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talloc_free(tmp_mem);
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DEBUG(0,("FAILED: calling wins hook '%s'\n", script));
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}
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