FreeCalypso > hg > freecalypso-tools

annotate loadtools/srecreader.c @ 1011:6d9b10633f10 default tip

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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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0
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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 * This module contains the functions for reading S-record files.
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Mychaela Falconia <falcon@freecalypso.org>
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3 */
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Mychaela Falconia <falcon@freecalypso.org>
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4
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Mychaela Falconia <falcon@freecalypso.org>
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5 #include <sys/types.h>
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Mychaela Falconia <falcon@freecalypso.org>
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6 #include <stdint.h>
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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7 #include <stdio.h>
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Mychaela Falconia <falcon@freecalypso.org>
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8 #include <ctype.h>
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Mychaela Falconia <falcon@freecalypso.org>
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9 #include <strings.h>
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Mychaela Falconia <falcon@freecalypso.org>
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10 #include "srecreader.h"
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Mychaela Falconia <falcon@freecalypso.org>
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11
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Mychaela Falconia <falcon@freecalypso.org>
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12 open_srec_file(sr)
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Mychaela Falconia <falcon@freecalypso.org>
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13 struct srecreader *sr;
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Mychaela Falconia <falcon@freecalypso.org>
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14 {
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Mychaela Falconia <falcon@freecalypso.org>
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15 sr->openfile = fopen(sr->filename, "r");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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16 if (!sr->openfile) {
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Mychaela Falconia <falcon@freecalypso.org>
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17 perror(sr->filename);
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Mychaela Falconia <falcon@freecalypso.org>
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18 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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19 }
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Mychaela Falconia <falcon@freecalypso.org>
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20 sr->lineno = 0;
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21 return(0);
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22 }
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Mychaela Falconia <falcon@freecalypso.org>
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23
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Mychaela Falconia <falcon@freecalypso.org>
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24 static
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Mychaela Falconia <falcon@freecalypso.org>
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25 srec2bin(sr, asciiline)
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26 struct srecreader *sr;
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Mychaela Falconia <falcon@freecalypso.org>
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27 char *asciiline;
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Mychaela Falconia <falcon@freecalypso.org>
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28 {
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Mychaela Falconia <falcon@freecalypso.org>
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29 register int i, l, b;
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30
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31 l = decode_hex_byte(asciiline + 2);
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Mychaela Falconia <falcon@freecalypso.org>
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32 if (l < 1) {
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Mychaela Falconia <falcon@freecalypso.org>
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33 fprintf(stderr, "%s line %d: S-record length octet is bad\n",
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34 sr->filename, sr->lineno);
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35 return(-1);
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36 }
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Mychaela Falconia <falcon@freecalypso.org>
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37 sr->record[0] = l;
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Mychaela Falconia <falcon@freecalypso.org>
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38 for (i = 1; i <= l; i++) {
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Mychaela Falconia <falcon@freecalypso.org>
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39 b = decode_hex_byte(asciiline + i*2 + 2);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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40 if (b < 0) {
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Mychaela Falconia <falcon@freecalypso.org>
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41 fprintf(stderr,
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Mychaela Falconia <falcon@freecalypso.org>
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42 "%s line %d: S-record hex decode error\n",
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Mychaela Falconia <falcon@freecalypso.org>
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43 sr->filename, sr->lineno);
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parents:
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44 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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45 }
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46 sr->record[i] = b;
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Mychaela Falconia <falcon@freecalypso.org>
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47 }
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48 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
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49 }
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50
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51 static
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Mychaela Falconia <falcon@freecalypso.org>
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52 srec_cksum(sr)
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Mychaela Falconia <falcon@freecalypso.org>
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53 struct srecreader *sr;
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Mychaela Falconia <falcon@freecalypso.org>
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54 {
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Mychaela Falconia <falcon@freecalypso.org>
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55 u_char accum;
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Mychaela Falconia <falcon@freecalypso.org>
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56 register int i, len;
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57
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58 len = sr->record[0] + 1;
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Mychaela Falconia <falcon@freecalypso.org>
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59 accum = 0;
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60 for (i = 0; i < len; i++)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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61 accum += sr->record[i];
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Mychaela Falconia <falcon@freecalypso.org>
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62 if (accum != 0xFF) {
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Mychaela Falconia <falcon@freecalypso.org>
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63 fprintf(stderr, "%s line %d: bad S-record checksum\n",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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64 sr->filename, sr->lineno);
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65 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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66 }
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67 return(0);
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68 }
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69
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70 read_s_record(sr)
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Mychaela Falconia <falcon@freecalypso.org>
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71 struct srecreader *sr;
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Mychaela Falconia <falcon@freecalypso.org>
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72 {
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73 char asciiline[1024];
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Mychaela Falconia <falcon@freecalypso.org>
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74
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Mychaela Falconia <falcon@freecalypso.org>
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75 if (!fgets(asciiline, sizeof asciiline, sr->openfile)) {
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Mychaela Falconia <falcon@freecalypso.org>
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76 fprintf(stderr, "%s: premature EOF after %d S-records\n",
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Mychaela Falconia <falcon@freecalypso.org>
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77 sr->filename, sr->lineno);
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78 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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79 }
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Mychaela Falconia <falcon@freecalypso.org>
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80 sr->lineno++;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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81 if (asciiline[0] != 'S' || !isdigit(asciiline[1])) {
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Mychaela Falconia <falcon@freecalypso.org>
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82 fprintf(stderr, "%s line %d: S-record expected\n",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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83 sr->filename, sr->lineno);
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84 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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85 }
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Mychaela Falconia <falcon@freecalypso.org>
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86 sr->record_type = asciiline[1];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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87 if (srec2bin(sr, asciiline) < 0)
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88 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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89 return srec_cksum(sr);
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Mychaela Falconia <falcon@freecalypso.org>
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90 }
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Mychaela Falconia <falcon@freecalypso.org>
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91
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Mychaela Falconia <falcon@freecalypso.org>
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92 s3s7_get_addr_data(sr)
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Mychaela Falconia <falcon@freecalypso.org>
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93 struct srecreader *sr;
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Mychaela Falconia <falcon@freecalypso.org>
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94 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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95 if (sr->record[0] < 5) {
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Mychaela Falconia <falcon@freecalypso.org>
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96 fprintf(stderr, "%s line %d: S%c record is too short\n",
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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97 sr->filename, sr->lineno, sr->record_type);
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Mychaela Falconia <falcon@freecalypso.org>
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98 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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99 }
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Mychaela Falconia <falcon@freecalypso.org>
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100 sr->datalen = sr->record[0] - 5;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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101 sr->addr = ((uint32_t)sr->record[1] << 24) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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102 ((uint32_t)sr->record[2] << 16) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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103 ((uint32_t)sr->record[3] << 8) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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104 (uint32_t)sr->record[4];
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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105 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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106 }