BadVPN – Blame information for rev 1

Subversion Repositories:
Rev:
Rev Author Line No. Line
1 office 1 /**
2 * @file make_name_indices.h
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions 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 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #ifndef BADVPN_MAKE_NAME_INDICES_H
31 #define BADVPN_MAKE_NAME_INDICES_H
32  
33 #include <stdlib.h>
34 #include <stddef.h>
35  
36 #include <misc/strdup.h>
37 #include <misc/balloc.h>
38 #include <misc/debug.h>
39 #include <ncd/NCDStringIndex.h>
40  
41 static int ncd_make_name_indices (NCDStringIndex *string_index, const char *name, NCD_string_id_t **out_varnames, size_t *out_num_names) WARN_UNUSED;
42  
43 static size_t split_string_inplace2__indices (char *str, char del)
44 {
45 ASSERT(str)
46  
47 size_t num_extra_parts = 0;
48  
49 while (*str) {
50 if (*str == del) {
51 *str = '\0';
52 num_extra_parts++;
53 }
54 str++;
55 }
56  
57 return num_extra_parts;
58 }
59  
60 static int ncd_make_name_indices (NCDStringIndex *string_index, const char *name, NCD_string_id_t **out_varnames, size_t *out_num_names)
61 {
62 ASSERT(string_index)
63 ASSERT(name)
64 ASSERT(out_varnames)
65 ASSERT(out_num_names)
66  
67 char *data = b_strdup(name);
68 if (!data) {
69 goto fail0;
70 }
71  
72 size_t num_names = split_string_inplace2__indices(data, '.') + 1;
73  
74 NCD_string_id_t *varnames = BAllocArray(num_names, sizeof(varnames[0]));
75 if (!varnames) {
76 goto fail1;
77 }
78  
79 char *cur = data;
80 for (size_t i = 0; i < num_names; i++) {
81 NCD_string_id_t id = NCDStringIndex_Get(string_index, cur);
82 if (id < 0) {
83 goto fail2;
84 }
85  
86 varnames[i] = id;
87 cur += strlen(cur) + 1;
88 }
89  
90 free(data);
91  
92 *out_varnames = varnames;
93 *out_num_names = num_names;
94 return 1;
95  
96 fail2:
97 BFree(varnames);
98 fail1:
99 free(data);
100 fail0:
101 return 0;
102 }
103  
104 #endif