-
Notifications
You must be signed in to change notification settings - Fork 0
/
gbp.c
215 lines (176 loc) · 5.45 KB
/
gbp.c
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
#include <stdlib.h>
#include <ruby.h>
#include <gbp/TL.h>
VALUE mChipcard; /* Chipcard module */
VALUE mGBP; /* PCSC module */
VALUE cReader; /* Reader class */
#define GBP_BUFSIZE 256 /* max bufsize for output */
#define STD_TIMEOUT 5000 /* default 5000 ms timeout value */
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
typedef struct _gbp_com {
char *tty; /* tty device */
unsigned char ncom; /* communication number (1 to 4) */
unsigned long vcom; /* communication speed (9600 to 38400 */
unsigned long timeout; /* timeout in ms */
int in_use;
unsigned char ibuf[GBP_BUFSIZE]; /* input buffer */
unsigned char ibuf_len;
unsigned char obuf[GBP_BUFSIZE]; /* output buffer */
unsigned char obuf_len;
} gbp_com;
gbp_com *gbp_new()
{
gbp_com *p;
p = (gbp_com *) malloc(sizeof(gbp_com));
if (p == NULL) {
}
p->tty = (char *) strdup("/dev/ttyS0");
p->ncom = 1;
p->vcom = 9600;
p->timeout = STD_TIMEOUT;
p->in_use = FALSE;
p->ibuf_len = p->obuf_len = 0;
return p;
}
void gbp_delete(gbp_com *p)
{
if (p != NULL) {
if (p->in_use) TL_Close();
if (p->tty != NULL) free(p->tty);
free(p);
}
}
static void gbp_free(void *p)
{
gbp_delete(p);
}
static VALUE gbp_alloc(VALUE klass)
{
gbp_com *gbp;
VALUE obj;
gbp = gbp_new();
obj = Data_Wrap_Struct(klass, 0, gbp_free, gbp);
return obj;
}
static void set_max_speed()
{
unsigned char ibuf[] = { 0x0A, 0x04 }, obuf[GBP_BUFSIZE];
unsigned char ibuf_len = 2, obuf_len;
TL_SendReceive(ibuf_len, ibuf, &obuf_len, obuf);
}
static VALUE gbp_initialize(VALUE self, VALUE port)
{
gbp_com *gbp;
short int status;
Data_Get_Struct(self, gbp_com, gbp);
if (TYPE(port) == T_STRING) {
if (gbp->tty != NULL)
free(gbp->tty);
gbp->tty = StringValuePtr(port);
status = TL_Open_TTY(gbp->tty, 9600);
set_max_speed();
/* TL_Close();
status = TL_Open_TTY(gbp->tty, 38400); */
} else {
gbp->ncom = NUM2CHR(port);
status = TL_Open(gbp->ncom, gbp->vcom);
}
if (status != NO_ERR) {
gbp->in_use = FALSE;
} else {
gbp->in_use = TRUE;
}
TL_SetTimeOut(gbp->timeout);
return self;
}
static VALUE gbp_init_copy(VALUE copy, VALUE orig)
{
gbp_com *orig_gbp;
gbp_com *copy_gbp;
if (copy == orig)
return copy;
if (TYPE(orig) != T_DATA || RDATA(orig)->dfree != (RUBY_DATA_FUNC) gbp_free) {
rb_raise(rb_eTypeError, "wrong argument type");
}
Data_Get_Struct(orig, gbp_com, orig_gbp);
Data_Get_Struct(copy, gbp_com, copy_gbp);
MEMCPY(copy_gbp, orig_gbp, gbp_com, 1);
return copy;
}
static char *get_err_msg(int status)
{
char *m = NULL;
switch(status) {
case ERR_COMNUM:
m = "wrong tty";
break;
case ERR_INITPORT:
m = "argument wrong";
break;
case ERR_LRC:
m = "wrong LRC";
break;
case ERR_READER_MUTE:
m = "reader is mute";
break;
case ERR_SEQUENCE_NUMBER:
m = "incorrect sequence number";
break;
case ERR_RESYNCH:
m = "resync command sent";
break;
case ERR_WRITEPORT:
m = "error during send";
break;
case ERR_READPORT:
m = "error during write";
break;
case ERR_SERIOUS_ERROR:
m = "serious error, resync failed";
break;
case ERR_NACK:
m = "NACK received from reader";
break;
case ERR_PARITY:
m = "parity error";
break;
default:
m = "unknown error code";
}
return m;
}
static VALUE gbp_send(VALUE self, VALUE bytes)
{
gbp_com *gbp;
int i;
short int status;
VALUE ary;
Check_Type(bytes, T_ARRAY);
Data_Get_Struct(self, gbp_com, gbp);
for (i = 0; i < RARRAY_LEN(bytes); i++) {
gbp->ibuf[i] = (unsigned char) FIX2INT(RARRAY_PTR(bytes)[i]);
}
gbp->ibuf_len = RARRAY_LEN(bytes);
status = TL_SendReceive(gbp->ibuf_len, gbp->ibuf, &gbp->obuf_len, gbp->obuf);
if (status != NO_ERR) {
rb_raise(rb_eRuntimeError, get_err_msg(status));
}
ary = rb_ary_new2(gbp->obuf_len);
for (i = 0; i < gbp->obuf_len; i++) {
rb_ary_push(ary, CHR2FIX(gbp->obuf[i]));
}
return ary;
}
void Init_gbp()
{
mChipcard = rb_define_module("Chipcard");
mGBP = rb_define_module_under(mChipcard, "GBP");
cReader = rb_define_class("Reader", rb_cObject);
rb_define_alloc_func(cReader, gbp_alloc);
rb_define_method(cReader, "initialize", gbp_initialize, 1);
rb_define_method(cReader, "initialize_copy", gbp_init_copy, 1);
rb_define_method(cReader, "send", gbp_send, 1);
}