FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/pirimei.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 3d148edb87c2
children
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1 /*
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2 * Reading and decryption of Pirelli's factory IMEI record
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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 <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "cl_des.h"
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11 #include "exitcodes.h"
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13 u_char pirelli_imeisv[8];
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15 get_pirelli_imei()
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16 {
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17 u_char ciphertext[2][8], dieid_key[8], decrypted[2][8];
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18 int rc;
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19 static char failmsg[] =
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20 "decryption failed: no valid IMEI record or incompatible firmware\n";
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22 printf("Requesting Calypso die ID\n");
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23 rc = do_dieid_read(dieid_key);
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24 if (rc)
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25 return(rc);
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26 printf("Reading IMEI record in Pirelli's factory data block\n");
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27 rc = do_memory_read(0x027F0504, ciphertext, 16);
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28 if (rc)
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29 return(rc);
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30 cl_des(ciphertext[0], dieid_key, decrypted[0], CL_DES_DECRYPTION);
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31 cl_des(ciphertext[1], dieid_key, decrypted[1], CL_DES_DECRYPTION);
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32 if (bcmp(decrypted[1], dieid_key, 8)) {
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33 fputs(failmsg, stderr);
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34 return(ERROR_TARGET);
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35 }
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36 bcopy(decrypted[0], pirelli_imeisv, 8);
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37 printf("Factory IMEISV is %02X%02X%02X%02X-%02X%02X%02X-%02X\n",
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38 pirelli_imeisv[0], pirelli_imeisv[1], pirelli_imeisv[2],
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39 pirelli_imeisv[3], pirelli_imeisv[4], pirelli_imeisv[5],
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40 pirelli_imeisv[6], pirelli_imeisv[7]);
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41 return(0);
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42 }