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
|
/*
* Copyright (C) 2003-2012 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 "config.h"
#include "argparser.h"
#include "result.h"
#include <glib.h>
#include <stdlib.h>
bool
check_uint32(struct client *client, uint32_t *dst, const char *s)
{
char *test;
*dst = strtoul(s, &test, 10);
if (test == s || *test != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
return true;
}
bool
check_int(struct client *client, int *value_r, const char *s)
{
char *test;
long value;
value = strtol(s, &test, 10);
if (test == s || *test != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
#if G_MAXLONG > G_MAXINT
if (value < G_MININT || value > G_MAXINT) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
#endif
*value_r = (int)value;
return true;
}
bool
check_range(struct client *client, unsigned *value_r1, unsigned *value_r2,
const char *s)
{
char *test, *test2;
long value;
value = strtol(s, &test, 10);
if (test == s || (*test != '\0' && *test != ':')) {
command_error(client, ACK_ERROR_ARG,
"Integer or range expected: %s", s);
return false;
}
if (value == -1 && *test == 0) {
/* compatibility with older MPD versions: specifying
"-1" makes MPD display the whole list */
*value_r1 = 0;
*value_r2 = G_MAXUINT;
return true;
}
if (value < 0) {
command_error(client, ACK_ERROR_ARG,
"Number is negative: %s", s);
return false;
}
#if G_MAXLONG > G_MAXUINT
if (value > G_MAXUINT) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
#endif
*value_r1 = (unsigned)value;
if (*test == ':') {
value = strtol(++test, &test2, 10);
if (test2 == test || *test2 != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer or range expected: %s", s);
return false;
}
if (test == test2)
value = G_MAXUINT;
if (value < 0) {
command_error(client, ACK_ERROR_ARG,
"Number is negative: %s", s);
return false;
}
#if G_MAXLONG > G_MAXUINT
if (value > G_MAXUINT) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
#endif
*value_r2 = (unsigned)value;
} else {
*value_r2 = (unsigned)value + 1;
}
return true;
}
bool
check_unsigned(struct client *client, unsigned *value_r, const char *s)
{
unsigned long value;
char *endptr;
value = strtoul(s, &endptr, 10);
if (endptr == s || *endptr != 0) {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
if (value > G_MAXUINT) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
*value_r = (unsigned)value;
return true;
}
bool
check_bool(struct client *client, bool *value_r, const char *s)
{
long value;
char *endptr;
value = strtol(s, &endptr, 10);
if (endptr == s || *endptr != 0 || (value != 0 && value != 1)) {
command_error(client, ACK_ERROR_ARG,
"Boolean (0/1) expected: %s", s);
return false;
}
*value_r = !!value;
return true;
}
bool
check_float(struct client *client, float *value_r, const char *s)
{
float value;
char *endptr;
value = strtof(s, &endptr);
if (endptr == s || *endptr != 0) {
command_error(client, ACK_ERROR_ARG,
"Float expected: %s", s);
return false;
}
*value_r = value;
return true;
}
|
