FreeCalypso > hg > freecalypso-tools
view rvinterf/etmsync/cl_des.h @ 965:2969032bdfac
fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing
The only 100% safe way to pass a NULL pointer as a function argument
in K&R C is to cast 0 to a pointer type; failing to do so may cause
mysterious bugs (invalid stack frames or garbage in argument registers)
on 64-bit machines. This issue has already been fixed in most of
FC host tools, but I just found some missed spots: passing of NULL UDH
to PDU encoding functions in fcup-smsend[mult] in the case of single
(not concatenated) SMS.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 01 Sep 2023 07:33:51 +0000 |
| parents | 3d148edb87c2 |
| children |
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/* * This DES implementation is used for the purpose of decrypting * Pirelli's factory IMEI record; it has been lifted out of TI's * reference GSM firmware source. */ #ifndef CL_DES_H #define CL_DES_H /**********************************************************************************/ #define CL_DES_BUFFER_SIZE 8 #define CL_DES_KEY_SIZE 8 #define CL_DES_ENCRYPTION 1 #define CL_DES_DECRYPTION 2 /* +------------------------------------------------------------------------------ | Function : cl_des +------------------------------------------------------------------------------ | Description : The function performs DES encrypting or decrypting | | Parameters : inMsgPtr : pointer to input message M. The length of message | has to be min. 8 bytes e.g. M = 0123456789abcdef | desKeyPtr : pointer to DES key. Length has to be 8 bytes | outMsgPtr : output encrypted/decrypted message. The length is 8 b. | code : CL_DES_ENCRYPTION, CL_DES_DECRYPTION +------------------------------------------------------------------------------ */ extern void cl_des(unsigned char *inMsgPtr, unsigned char *desKeyPtr, unsigned char *outMsgPtr, unsigned char code); /**********************************************************************************/ #endif /* CL_DES_H */