FreeCalypso > hg > freecalypso-hwlab

comparison simtool/dispatch.c @ 85:b57cf64ece29

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fc-simtool project started
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 Jan 2021 00:32:10 +0000
parents
children 91486a77643e
comparison
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84:1d7d8615d628 85:b57cf64ece29
1 /*
2 * This module implements the command dispatch for fc-simtool
3 */
4
5 #include <sys/types.h>
6 #include <ctype.h>
7 #include <stdio.h>
8 #include <string.h>
9 #include <strings.h>
10 #include <stdlib.h>
11 #include <pcsclite.h>
12 #include <winscard.h>
13 #include "globals.h"
14
15 extern int cmd_select();
16
17 cmd_exit()
18 {
19 SCardDisconnect(hCard, SCARD_UNPOWER_CARD);
20 SCardReleaseContext(hContext);
21 exit(0);
22 }
23
24 static struct cmdtab {
25 char *cmd;
26 int minargs;
27 int maxargs;
28 int (*func)();
29 } cmdtab[] = {
30 {"exit", 0, 0, cmd_exit},
31 {"quit", 0, 0, cmd_exit},
32 {"select", 1, 1, cmd_select},
33 {0, 0, 0, 0}
34 };
35
36 simtool_dispatch_cmd(cmd)
37 char *cmd;
38 {
39 char *argv[10];
40 char *cp, **ap;
41 struct cmdtab *tp;
42
43 for (cp = cmd; isspace(*cp); cp++)
44 ;
45 if (!*cp || *cp == '#')
46 return(0);
47 argv[0] = cp;
48 while (*cp && !isspace(*cp))
49 cp++;
50 if (*cp)
51 *cp++ = '\0';
52 for (tp = cmdtab; tp->cmd; tp++)
53 if (!strcmp(tp->cmd, argv[0]))
54 break;
55 if (!tp->func) {
56 fprintf(stderr, "error: no such command\n");
57 return(-1);
58 }
59 for (ap = argv + 1; ; ) {
60 while (isspace(*cp))
61 cp++;
62 if (!*cp || *cp == '#')
63 break;
64 if (ap - argv - 1 >= tp->maxargs) {
65 fprintf(stderr, "error: too many arguments\n");
66 return(-1);
67 }
68 *ap++ = cp;
69 while (*cp && !isspace(*cp))
70 cp++;
71 if (*cp)
72 *cp++ = '\0';
73 }
74 if (ap - argv - 1 < tp->minargs) {
75 fprintf(stderr, "error: too few arguments\n");
76 return(-1);
77 }
78 *ap = 0;
79 return tp->func(ap - argv, argv);
80 }