FreeCalypso > hg > fc-am-toolkit

annotate bootutil/c155_main.c @ 22:873d5f33e8f3

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doc: beginning with FC-aftermarket-intro
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 11 Jun 2023 06:18:53 +0000
parents 36e65605d16a
children
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1 /*
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2 * This C module is the main for c155-analyze-boot utility.
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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 <sys/file.h>
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7 #include <sys/stat.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <unistd.h>
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13 #include "../bootmatch/bootmatch.h"
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15 extern struct bootmatch bootmatch_c155[];
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17 #define LENGTH_OF_INTEREST 0x2000
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19 static u_char image[LENGTH_OF_INTEREST];
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20
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21 static void
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22 read_bin_file(filename)
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23 char *filename;
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24 {
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25 int fd;
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26 struct stat st;
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27
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28 fd = open(filename, O_RDONLY);
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29 if (fd < 0) {
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30 perror(filename);
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31 exit(1);
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32 }
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33 fstat(fd, &st);
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34 if (!S_ISREG(st.st_mode)) {
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35 fprintf(stderr, "error: %s is not a regular file\n", filename);
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36 exit(1);
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37 }
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38 if (st.st_size < LENGTH_OF_INTEREST) {
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39 fprintf(stderr, "error: %s is too short\n", filename);
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40 exit(1);
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41 }
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42 read(fd, image, LENGTH_OF_INTEREST);
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43 close(fd);
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44 }
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45
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46 main(argc, argv)
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47 char **argv;
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48 {
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49 if (argc != 2) {
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50 fprintf(stderr, "usage: %s flashdump.bin\n", argv[0]);
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51 exit(1);
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52 }
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53 read_bin_file(argv[1]);
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54 if (check_for_match(image, bootmatch_c155))
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55 puts("ok");
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56 else
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57 puts("unknown");
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58 exit(0);
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59 }