1 /*
2 * SysDB - src/tools/sysdb/command.c
3 * Copyright (C) 2014 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #if HAVE_CONFIG_H
29 # include "config.h"
30 #endif /* HAVE_CONFIG_H */
32 #include "tools/sysdb/command.h"
33 #include "tools/sysdb/input.h"
35 #include "frontend/proto.h"
36 #include "utils/error.h"
37 #include "utils/strbuf.h"
39 #include <errno.h>
41 #include <assert.h>
42 #include <ctype.h>
43 #include <string.h>
45 /*
46 * public API
47 */
49 char *
50 sdb_command_exec(sdb_input_t *input)
51 {
52 const char *query;
53 uint32_t query_len;
55 char *data = NULL;
57 query = sdb_strbuf_string(input->input);
58 query_len = (uint32_t)input->query_len;
60 assert(input->query_len <= input->tokenizer_pos);
62 /* removing leading and trailing newlines */
63 while (query_len && (*query == '\n')) {
64 ++query;
65 --query_len;
66 }
67 while (query_len && (query[query_len - 1]) == '\n')
68 --query_len;
70 if (query_len) {
71 sdb_strbuf_t *recv_buf;
72 const char *result;
73 uint32_t rcode = 0;
75 recv_buf = sdb_strbuf_create(1024);
76 if (! recv_buf)
77 return NULL;
79 data = strndup(query, query_len);
80 /* ignore errors; we'll only hide the command from the caller */
82 sdb_client_send(input->client, CONNECTION_QUERY, query_len, query);
83 if (sdb_client_recv(input->client, &rcode, recv_buf) < 0)
84 rcode = UINT32_MAX;
86 if (rcode == UINT32_MAX)
87 printf("ERROR: ");
88 result = sdb_strbuf_string(recv_buf);
89 if (result && *result)
90 printf("%s\n", result);
91 else if (rcode == UINT32_MAX) {
92 char errbuf[1024];
93 printf("%s\n", sdb_strerror(errno, errbuf, sizeof(errbuf)));
94 }
96 sdb_strbuf_destroy(recv_buf);
97 }
99 sdb_strbuf_skip(input->input, 0, input->query_len);
100 input->tokenizer_pos -= input->query_len;
101 input->query_len = 0;
102 return data;
103 } /* sdb_command_exec */
105 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */