1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
/* gsmd extended response parser
*
* (C) 2007 by OpenMoko, Inc.
* Written by Harald Welte <laforge@openmoko.org>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include "gsmd.h"
#include <gsmd/gsmd.h>
#include <gsmd/atcmd.h>
#include <gsmd/extrsp.h>
#include <gsmd/talloc.h>
int extrsp_supports(const struct gsm_extrsp *er, int index, int value)
{
int i;
if (index >= er->num_tokens)
return -EINVAL;
if (er->tokens[index].type != GSMD_ECMD_RTT_RANGE)
return -EINVAL;
for (i = 0; i < er->tokens[index].u.range.num_items; i++) {
struct gsm_extrsp_range_item *ri =
&er->tokens[index].u.range.item[i];
if (value >= ri->min && value <= ri->max)
return 1;
}
return 0;
}
enum parser_state {
IDLE,
TOKEN_STRING,
TOKEN_STRING_LASTQUOTE,
TOKEN_NUMERIC,
TOKEN_RANGE,
};
/* parse a comma-separated list, possibly containing quote values */
struct gsm_extrsp *extrsp_parse(const void *ctx, const char *input)
{
const char *cur = input;
struct gsm_extrsp *er;
enum parser_state state = IDLE;
char buf[512];
char *cur_buf = buf;
struct gsm_extrsp_tok *cur_token;
if (!input || strlen(input) == 0)
return NULL;
er = talloc(ctx, struct gsm_extrsp);
if (!er)
return NULL;
memset(er, 0, sizeof(*er));
while (*cur) {
cur_token = &er->tokens[er->num_tokens];
switch (state) {
case IDLE:
memset(buf, 0, sizeof(buf));
cur_buf = buf;
if (isblank(*cur))
break;
else if (*cur == '"') {
cur_token->type = GSMD_ECMD_RTT_STRING;
state = TOKEN_STRING;
} else if (*cur == '(') {
cur_token->type = GSMD_ECMD_RTT_RANGE;
state = TOKEN_RANGE;
} else if (isdigit(*cur)) {
cur_token->type = GSMD_ECMD_RTT_NUMERIC;
*cur_buf = *cur;
cur_buf++;
state = TOKEN_NUMERIC;
} else if (*cur == ',') {
cur_token->type = GSMD_ECMD_RTT_EMPTY;
er->num_tokens++;
state = IDLE;
}
break;
case TOKEN_NUMERIC:
if (*cur == ',') {
/* end of number */
cur_token->u.numeric = atoi(buf);
er->num_tokens++;
state = IDLE;
} else if (isdigit(*cur)) {
*cur_buf = *cur;
cur_buf++;
} else {
/* ERORR */
}
break;
case TOKEN_STRING:
if (*cur == '"') {
/* end of string token */
strlcpy(cur_token->u.string, buf, GSM_EXTRSP_MAX_STRBUF);
er->num_tokens++;
state = TOKEN_STRING_LASTQUOTE;
} else {
*cur_buf = *cur;
cur_buf++;
}
break;
case TOKEN_STRING_LASTQUOTE:
if (*cur == ',')
state = IDLE;
else {
/* ERROR */
}
break;
case TOKEN_RANGE:
if (isdigit(*cur)) {
*cur_buf = *cur;
cur_buf++;
} else if (*cur == '-') {
/* previous number has completed */
cur_token->u.range.item[cur_token->u.range.num_items].min = atoi(buf);
memset(buf, 0, sizeof(buf));
cur_buf = buf;
} else if (*cur == ',') {
/* previous number has completed */
cur_token->u.range.item[cur_token->u.range.num_items].max = atoi(buf);
cur_token->u.range.num_items++;
} else if (*cur == ')') {
/* previous number has completed */
cur_token->u.range.item[cur_token->u.range.num_items].max = atoi(buf);
cur_token->u.range.num_items++;
state = TOKEN_STRING_LASTQUOTE;
er->num_tokens++;
} else {
/* ERROR */
}
break;
default:
break;
}
cur++;
}
if (state == TOKEN_NUMERIC) {
/* end of number */
cur_token->u.numeric = atoi(buf);
er->num_tokens++;
}
//extrsp_dump(er);
return er;
}
static const char *er_tok_names[] = {
[GSMD_ECMD_RTT_EMPTY] = "EMPTY",
[GSMD_ECMD_RTT_NUMERIC] = "NUMERIC",
[GSMD_ECMD_RTT_STRING] = "STRING",
[GSMD_ECMD_RTT_RANGE] = "RANGE",
};
void extrsp_dump(const struct gsm_extrsp *er)
{
int i;
DEBUGP("entering(er=%p, num_tokens=%u)\n", er, er->num_tokens);
for (i = 0; i < er->num_tokens; i++) {
const struct gsm_extrsp_tok *tok = &er->tokens[i];
DEBUGP("Token %u: %s: ", i, er_tok_names[tok->type]);
switch (tok->type) {
case GSMD_ECMD_RTT_EMPTY:
DEBUGP("\n");
break;
case GSMD_ECMD_RTT_NUMERIC:
DEBUGP("%d\n", tok->u.numeric);
break;
case GSMD_ECMD_RTT_STRING:
DEBUGP("%s\n", tok->u.string);
break;
case GSMD_ECMD_RTT_NONE:
break;
case GSMD_ECMD_RTT_RANGE: {
int j;
for (j = 0; j < tok->u.range.num_items; j++)
DEBUGP("%d-%d, ", tok->u.range.item[j].min,
tok->u.range.item[j].max);
}
break;
}
}
}
|
