FreeCalypso > hg > freecalypso-tools

annotate ffstools/tiffs-wrappers/pirffs.c @ 921:74d284add54d

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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>
date Sat, 31 Dec 2022 22:55:23 +0000
parents e7502631a0f9
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * pirffs is a wrapper around tiffs: we pass the user's command along,
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3 * together with any options, but insert the 256x18 FFS organization argument
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Mychaela Falconia <falcon@freecalypso.org>
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4 * automatically.
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Mychaela Falconia <falcon@freecalypso.org>
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <unistd.h>
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12
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13 extern char tiffs_prog_pathname[];
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14
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15 char *imgfile;
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16 char *aopt, *ropt;
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17 char **passon_argv;
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18 int passon_argc;
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19 int output_argc;
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20 char **output_argv;
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21
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22 main(argc, argv)
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23 char **argv;
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24 {
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25 extern int optind;
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26 extern char *optarg;
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27 int c;
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28 char **sp, **dp;
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29
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30 while ((c = getopt(argc, argv, "+a:r:")) != EOF)
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31 switch (c) {
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32 case 'a':
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33 aopt = optarg;
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34 continue;
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35 case 'r':
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36 ropt = optarg;
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37 continue;
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38 default:
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39 usage: fprintf(stderr,
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40 "usage: %s [global-options] <imgfile> <op> ...\n",
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41 argv[0]);
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42 exit(1);
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43 }
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44 if (argc - optind < 2)
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45 goto usage;
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46 imgfile = argv[optind++];
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47 passon_argv = argv + optind;
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48 passon_argc = argc - optind;
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49
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50 output_argc = passon_argc + 3;
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51 if (aopt)
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52 output_argc += 2;
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53 if (ropt)
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54 output_argc += 2;
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55 output_argv = malloc(sizeof(char *) * (output_argc + 1));
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56 if (!output_argv) {
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Mychaela Falconia <falcon@freecalypso.org>
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57 perror("malloc for tiffs argument list");
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58 exit(1);
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59 }
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60 dp = output_argv;
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61 *dp++ = "tiffs";
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62 if (aopt) {
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63 *dp++ = "-a";
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64 *dp++ = aopt;
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65 }
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66 if (ropt) {
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67 *dp++ = "-r";
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68 *dp++ = ropt;
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69 }
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70 *dp++ = imgfile;
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71 *dp++ = "256x18";
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72 for (sp = passon_argv; *sp; sp++)
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73 *dp++ = *sp;
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74 *dp = 0;
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75 execvp(tiffs_prog_pathname, output_argv);
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76 perror(tiffs_prog_pathname);
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77 exit(1);
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78 }