annotate loadtools/secondprog.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>
date Sat, 31 Dec 2022 22:55:23 +0000
parents 064d4eedb3a6
children
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064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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1 /*
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2 * This module contains the code for passing the serial channel to a
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3 * second program, used by fc-iram and fc-xram.
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4 */
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5
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6 #include <stdio.h>
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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7 #include <stdlib.h>
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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8 #include <unistd.h>
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9
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10 extern char **passon_argv;
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11 extern int passon_argc;
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12
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13 exec_2nd_prog()
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14 {
064d4eedb3a6 loadtools: second program invokation support added to fc-iram like in fc-xram
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15 char **execp_argv;
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16 char **sp, **dp;
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17 extern int target_fd;
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18 char desc_arg[16];
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19
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20 sprintf(desc_arg, "-d%d", target_fd);
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21 execp_argv = (char **) malloc(sizeof(char *) * (passon_argc + 2));
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22 if (!execp_argv) {
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23 perror("malloc argv for execvp");
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24 exit(1);
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25 }
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26 sp = passon_argv;
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27 dp = execp_argv;
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28 *dp++ = *sp++;
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29 *dp++ = desc_arg;
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30 while (*sp)
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31 *dp++ = *sp++;
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32 *dp = NULL;
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33 execvp(execp_argv[0], execp_argv);
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34 fprintf(stderr, "Unable to execvp %s\n", passon_argv[0]);
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35 exit(1);
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36 }