annotate rvinterf/old/g23sh/usercmd.c @ 1011:6d9b10633f10

etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents e7502631a0f9
children
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1 /*
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2 * This module implements g23sh user command dispatch.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <ctype.h>
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdlib.h>
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11
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12 extern char usercmd[];
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13
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14 extern void cmd_sendsp();
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15
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16 void
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17 cmd_exit()
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18 {
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19 tty_cleanup();
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20 exit(0);
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21 }
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22
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23 static struct cmdtab {
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24 char *cmd;
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25 int minargs;
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26 int maxargs;
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27 void (*func)();
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28 } cmdtab[] = {
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29 {"exit", 0, 0, cmd_exit},
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30 {"quit", 0, 0, cmd_exit},
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31 {"sp", 2, 2, cmd_sendsp},
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32 {0, 0, 0, 0}
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33 };
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34
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35 void
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36 dispatch_user_cmd()
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37 {
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38 char *argv[10];
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39 char *cp, **ap;
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40 struct cmdtab *tp;
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41
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42 for (cp = usercmd; isspace(*cp); cp++)
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43 ;
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44 if (!*cp || *cp == '#')
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45 return;
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46 argv[0] = cp;
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47 while (*cp && !isspace(*cp))
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48 cp++;
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49 if (*cp)
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50 *cp++ = '\0';
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51 for (tp = cmdtab; tp->cmd; tp++)
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52 if (!strcmp(tp->cmd, argv[0]))
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53 break;
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54 if (!tp->func) {
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55 printf("error: no such command\n");
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56 return;
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57 }
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58 for (ap = argv + 1; ; ) {
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59 while (isspace(*cp))
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60 cp++;
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61 if (!*cp || *cp == '#')
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62 break;
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63 if (ap - argv - 1 >= tp->maxargs) {
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64 printf("error: too many arguments\n");
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65 return;
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66 }
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67 if (*cp == '"') {
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68 *ap++ = ++cp;
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69 while (*cp && *cp != '"')
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70 cp++;
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71 if (*cp != '"') {
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72 printf("error: unterminated quoted string\n");
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73 return;
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74 }
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75 *cp++ = '\0';
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76 } else {
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77 *ap++ = cp;
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78 while (*cp && !isspace(*cp))
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79 cp++;
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80 if (*cp)
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81 *cp++ = '\0';
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82 }
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83 }
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84 if (ap - argv - 1 < tp->minargs) {
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85 printf("error: too few arguments\n");
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86 return;
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87 }
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88 *ap = 0;
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89 tp->func(ap - argv, argv);
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90 }