FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/hexstrings.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 0da2cf5a999c
children
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1 /*
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2 * The decode_hex_digits() function contained in this module
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3 * will be used by the XRAM and flash loading commands
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4 * which take SREC-like long hex string arguments.
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5 */
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6
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7 #include <ctype.h>
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8 #include "types.h"
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9
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10 decode_hex_digits(str, ndigits, valp)
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11 char *str;
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12 int ndigits;
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13 u32 *valp;
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14 {
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15 u32 accum;
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16 int i, c;
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17
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18 accum = 0;
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19 for (i = 0; i < ndigits; i++) {
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20 c = *str++;
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21 if (!isxdigit(c))
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22 return(-1);
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23 accum <<= 4;
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24 if (isdigit(c))
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25 accum += c - '0';
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26 else if (islower(c))
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27 accum += c - 'a' + 10;
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28 else
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29 accum += c - 'A' + 10;
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30 }
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31 *valp = accum;
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32 return(0);
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33 }