FreeCalypso > hg > freecalypso-tools
annotate rvinterf/etmsync/dispatch.c @ 921:74d284add54d
fc-fsio: guard against bogus readdir results from the target
If the FFS being operated on contains SE K2x0 extended filenames,
readdir will return strings that are bad for printing. We need to
guard against this possibility, and also against possible other
bogosity that could be sent by other alien firmwares.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 31 Dec 2022 22:55:23 +0000 |
parents | e7502631a0f9 |
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0
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1 /* |
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2 * This module implements the command dispatch for fc-fsio |
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3 * and possibly other similar utilities in the future. |
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4 */ |
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5 |
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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 #include "cmdtab.h" |
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12 #include "exitcodes.h" |
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13 |
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14 extern struct cmdtab cmdtab[]; |
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15 |
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16 parse_and_dispatch_cmd(cmd, is_script) |
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17 char *cmd; |
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18 { |
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19 char *argv[MAX_CMD_ARGS+2]; |
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20 char *cp, **ap; |
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21 struct cmdtab *tp; |
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22 |
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23 for (cp = cmd; isspace(*cp); cp++) |
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24 ; |
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25 if (!*cp || *cp == '#') |
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26 return(0); |
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27 if (is_script) |
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28 printf("Script command: %s\n", cp); |
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29 argv[0] = cp; |
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30 while (*cp && !isspace(*cp)) |
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31 cp++; |
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32 if (*cp) |
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33 *cp++ = '\0'; |
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34 for (tp = cmdtab; tp->cmd; tp++) |
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35 if (!strcmp(tp->cmd, argv[0])) |
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36 break; |
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37 if (!tp->func) { |
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38 fprintf(stderr, "error: no such command\n"); |
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39 return(ERROR_USAGE); |
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40 } |
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41 for (ap = argv + 1; ; ) { |
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42 while (isspace(*cp)) |
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43 cp++; |
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44 if (!*cp || *cp == '#') |
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45 break; |
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46 if (ap - argv - 1 >= tp->maxargs) { |
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47 fprintf(stderr, "error: too many arguments\n"); |
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48 return(ERROR_USAGE); |
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49 } |
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50 if (*cp == '"') { |
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51 *ap++ = ++cp; |
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52 while (*cp && *cp != '"') |
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53 cp++; |
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54 if (*cp != '"') { |
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55 fprintf(stderr, |
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56 "error: unterminated quoted string\n"); |
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57 return(ERROR_USAGE); |
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58 } |
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59 *cp++ = '\0'; |
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60 } else { |
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61 *ap++ = cp; |
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62 while (*cp && !isspace(*cp)) |
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63 cp++; |
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64 if (*cp) |
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65 *cp++ = '\0'; |
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66 } |
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67 } |
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68 if (ap - argv - 1 < tp->minargs) { |
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69 fprintf(stderr, "error: too few arguments\n"); |
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70 return(ERROR_USAGE); |
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71 } |
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72 *ap = 0; |
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73 return tp->func(ap - argv, argv); |
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74 } |
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75 |
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76 dispatch_ready_argv(argc, argv) |
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77 char **argv; |
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78 { |
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79 struct cmdtab *tp; |
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80 |
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81 for (tp = cmdtab; tp->cmd; tp++) |
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82 if (!strcmp(tp->cmd, argv[0])) |
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83 break; |
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84 if (!tp->func) { |
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85 fprintf(stderr, "error: no such command\n"); |
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86 return(ERROR_USAGE); |
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87 } |
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88 if (argc - 1 > tp->maxargs) { |
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89 fprintf(stderr, "error: too many arguments\n"); |
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90 return(ERROR_USAGE); |
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91 } |
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92 if (argc - 1 < tp->minargs) { |
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93 fprintf(stderr, "error: too few arguments\n"); |
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94 return(ERROR_USAGE); |
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95 } |
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96 return tp->func(argc, argv); |
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97 } |
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98 |
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99 cmd_exec(argc, argv) |
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100 char **argv; |
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101 { |
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102 FILE *f; |
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103 char linebuf[512], *cp; |
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104 int lineno, retval = 0; |
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105 |
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106 f = fopen(argv[1], "r"); |
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107 if (!f) { |
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108 perror(argv[1]); |
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109 return(ERROR_USAGE); |
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110 } |
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111 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { |
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112 cp = index(linebuf, '\n'); |
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113 if (!cp) { |
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114 fprintf(stderr, "%s line %d: missing newline\n", |
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115 argv[1], lineno); |
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116 fclose(f); |
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117 return(ERROR_USAGE); |
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118 } |
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119 *cp = '\0'; |
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120 retval = parse_and_dispatch_cmd(linebuf, 1); |
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121 if (retval) |
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122 break; |
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123 } |
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124 fclose(f); |
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125 return(retval); |
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126 } |
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127 |
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128 cmd_exit() |
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129 { |
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130 exit(0); |
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131 } |