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comparison calypso/main.c @ 4:deeeef558279

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fcsim-calypso-be put together
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 05:07:34 +0000
parents
children f6b03af63bf7
comparison
equal deleted inserted replaced
3:45ea06eaa9fd 4:deeeef558279
1 #include <ctype.h>
2 #include <stdio.h>
3 #include <stdlib.h>
4 #include <string.h>
5 #include <strings.h>
6
7 static
8 is_string_all_hex(str)
9 char *str;
10 {
11 char *cp;
12
13 for (cp = str; *cp; cp++)
14 if (!isxdigit(*cp))
15 return(0);
16 return(1);
17 }
18
19 cmd_exchange(input)
20 char *input;
21 {
22 char *targv[3];
23 int rc;
24
25 targv[0] = "X";
26 targv[1] = input;
27 targv[2] = 0;
28
29 tpinterf_make_cmd(targv);
30 rc = tpinterf_send_cmd();
31 if (rc < 0)
32 return(rc);
33 return tpinterf_pass_output(20);
34 }
35
36 cmd_atr()
37 {
38 static char *atr_argv[2] = {"atr", 0};
39 int rc;
40
41 tpinterf_make_cmd(atr_argv);
42 rc = tpinterf_send_cmd();
43 if (rc < 0)
44 return(rc);
45 return tpinterf_pass_output(1);
46 }
47
48 cmd_poweroff()
49 {
50 static char *poweroff_argv[2] = {"poweroff", 0};
51
52 tpinterf_make_cmd(poweroff_argv);
53 tpinterf_send_cmd();
54 }
55
56 main(argc, argv)
57 char **argv;
58 {
59 char inbuf[576], *cp;
60 unsigned len;
61
62 parse_target_fd_opt(argc, argv);
63 putchar('\n');
64
65 while (fgets(inbuf, sizeof inbuf, stdin)) {
66 cp = index(inbuf, '\n');
67 if (!cp) {
68 printf("back end error: missing newline on input\n");
69 continue;
70 }
71 *cp = '\0';
72 if (!strcmp(inbuf, "atr")) {
73 cmd_atr();
74 continue;
75 }
76 if (!strcmp(inbuf, "poweroff")) {
77 cmd_poweroff();
78 exit(0);
79 }
80 if (!is_string_all_hex(inbuf)) {
81 printf("back end error: input is not all hex\n");
82 continue;
83 }
84 len = strlen(inbuf);
85 if (len & 1) {
86 printf(
87 "back end error: input has odd number of hex digits\n");
88 continue;
89 }
90 if (len < 10) {
91 printf(
92 "back end error: input is too short for command APDU\n");
93 continue;
94 }
95 if (len > 520) {
96 printf(
97 "back end error: input is too long for command APDU\n");
98 continue;
99 }
100 cmd_exchange(inbuf);
101 }
102
103 exit(0);
104 }