C++ read_key函数代码示例

gint check_deepest_dist (TestData *td)
{
  guint64 res;
  VsgPRTreeKey2d k1, k2;

  read_key (td->k1, &k1);
  read_key (td->k2, &k2);

  res = vsg_prtree_key2d_deepest_distance (&k1, &k2);

  if (res != td->ref)
    {
      g_printerr ("Error - k1 = \"%s\" -> (", td->k1);
      vsg_prtree_key2d_write (&k1, stderr);
      g_printerr (") k2 = \"%s\" -> (", td->k2);
      vsg_prtree_key2d_write (&k2, stderr);
      g_printerr (") ref=%ld != res=%ld ", td->ref, res);
      g_printerr ("\n");

      return 1;
    }
  else if (_verbose)
    {
      g_printerr ("OK - k1 = \"%s\"", td->k1);
      g_printerr (" k2 = \"%s\"", td->k2);
      g_printerr (" ref=%ld", td->ref);
      g_printerr ("\n");

    }

  return 0;
}

void logon(int & error_code) {
    char user[256]=" ;103<;01",password[256]=" ;103<;01";
    read_key("01",(unsigned char *)user,sizeof(user));
    read_key("02",(unsigned char *)password,sizeof(password));
    unscr(user);
    unscr(password);
    if (!server_user) logonu(server_user,user,password,error_code);
}

int main(int argc, char *argv[]) {
    if (argc != 5) error(2,
                             "Usage: tweetnacl-encrypt send-key.sec recv-key.pub text.txt text.enc");

    // This will also erroneously fail if the file "-" exists
    if (file_exists(argv[4])) errorf(1, "File <%s> exists", argv[4]);

    // Alice is sending to Bob, not surprisingly
    unsigned char a_secret_key[crypto_box_SECRETKEYBYTES];
    unsigned char b_public_key[crypto_box_PUBLICKEYBYTES];

    read_key(argv[1], a_secret_key, crypto_box_SECRETKEYBYTES);
    read_key(argv[2], b_public_key, crypto_box_PUBLICKEYBYTES);

    unsigned char nonce[crypto_box_NONCEBYTES];
    randombytes(nonce, sizeof(nonce));

    FILE *out;
    if (strcmp(argv[4], "-") != 0) {
        out = create_file(argv[4]);
        fwrite(nonce, sizeof(nonce), 1, out);
    } else {
        out = stdout;
        fwrite(bytes_to_hex(nonce, sizeof(nonce)), sizeof(nonce) * 2, 1, out);
        fputs("\n", out);
    }

    // Input
    // unsigned char *message = read_file(argv[3]);
    Content c = read_file(argv[3]);
    long psize = crypto_box_ZEROBYTES + c.size;
    unsigned char *padded = malloc(psize);
    if (padded == NULL) error(1, "Malloc failed!");
    memset(padded, 0, crypto_box_ZEROBYTES);
    memcpy(padded + crypto_box_ZEROBYTES, c.bytes, c.size);
    free(c.bytes);

    // Output
    unsigned char *encrypted = calloc(psize, sizeof(unsigned char));
    if (encrypted == NULL) error(1, "Calloc failed!");

    // Encrypt
    crypto_box(encrypted, padded, psize, nonce, b_public_key, a_secret_key);
    free(padded);

    if (out != stdout) {
        fwrite(encrypted + crypto_box_BOXZEROBYTES,
               psize - crypto_box_BOXZEROBYTES, 1, out);
    } else {
        fwrite(bytes_to_hex(encrypted + crypto_box_BOXZEROBYTES,
                            psize - crypto_box_BOXZEROBYTES),
               (psize - crypto_box_BOXZEROBYTES) * 2, 1, out);
        fputs("\n", out);
    }
    free(encrypted);
    return 0;
}

static bool_t audpl_load (const char * path, VFSFile * file, char * * title,
 Index * filenames, Index * tuples)
{
    ReadState * state = malloc (sizeof (ReadState));
    state->file = file;
    state->cur = state->buf;
    state->len = 0;

    char * key, * val;

    if (! read_key (state, & key, & val) || strcmp (key, "title"))
    {
        free (state);
        return FALSE;
    }

    * title = str_get (val);

    bool_t readed = read_key (state, & key, & val);

    while (readed && ! strcmp (key, "uri"))
    {
        char * uri = str_get (val);
        Tuple * tuple = NULL;

        while ((readed = read_key (state, & key, & val)) && strcmp (key, "uri"))
        {
            if (! tuple)
                tuple = tuple_new_from_filename (uri);

            if (! strcmp (key, "empty"))
                continue;

            int field = tuple_field_by_name (key);
            TupleValueType type = tuple_field_get_type (field);

            if (field < 0)
                break;

            if (type == TUPLE_STRING)
                tuple_set_str (tuple, field, NULL, val);
            else if (type == TUPLE_INT)
                tuple_set_int (tuple, field, NULL, atoi (val));
        }

        index_append (filenames, uri);
        index_append (tuples, tuple);
    }

    free (state);
    return TRUE;
}

/*
 * Reads an AMF0 hash, with a configurable key reading function - either
 * des_read_string or des_read_sym
 */
static void des0_read_props(VALUE self, VALUE hash, VALUE(*read_key)(AMF_DESERIALIZER*, long), int translate_case) {
    AMF_DESERIALIZER *des;
    Data_Get_Struct(self, AMF_DESERIALIZER, des);

    while(1) {
        int len = des_read_uint16(des);
        if(len == 0) {
            des_read_byte(des); // Read type byte
            return;
        } else {
            VALUE key = translate_case ? snakecase_str(read_key(des, len)) : read_key(des, len);
            char type = des_read_byte(des);
            rb_hash_aset(hash, key, des0_deserialize(self, type));
        }
    }
}

/************按键处理函数，按键数据低位在前高位在后ó************/
void tm1651_key_process()
{
 uint8_t temp =0 ;
 temp =   read_key() ;      //(0x10)			  //读取按键返回值
 
// static uint16_t i=0;
 if(temp!= 0xff)
 {     
   
  //disp0(CODE_Clean);					  // 清屏
  //    GUI_Clear();
  switch(temp)
  {
    
    case 0xf7 : pid_input_detect |=PID_Input_BIT7; break;// disp(0xc0,1);break;	GUI_DispDecMin(1);	  //K1与SG1对应的按键按下 显示1  A
    case 0xf6 : pid_input_detect |=PID_Input_BIT6;break;//disp(0xc0,2);break;		  //K1与SG2对应的按键按下 显示2	 B
    case 0xf5 : pid_input_detect |=PID_Input_BIT5;break;//disp(0xc0,3);break;		  //K1与SG3对应的按键按下 显示3  C
    case 0xf4 : pid_input_detect |=PID_Input_BIT4;break;//disp(0xc0,4);break;		  //K1与SG4对应的按键按下   D  
    case 0xf3 : pid_input_detect |=PID_Input_BIT3;break;//disp(0xc0,5);break;		  //K1与SG5对应的按键按下  E
    case 0xf2 : pid_input_detect |=PID_Input_BIT2;break;//disp(0xc0,6);break;		  //K1与SG6对应的按键按下  F
    case 0xf1 : pid_input_detect |=PID_Input_BIT1;break;//disp(0xc0,7);break;		  //KK1与SG7对应的按键按下  G // 
    default   : break;
  }
 }
}

int main(){

char returned_key;

	returned_key = read_key();

}

/* Simple implementation of decryption: look for any crypto_LUKS
 * partitions and decrypt them, then rescan for VGs.  This only works
 * for Fedora whole-disk encryption.  WIP to make this work for other
 * encryption schemes.
 */
void
inspect_do_decrypt (void)
{
  CLEANUP_FREE_STRING_LIST char **partitions = guestfs_list_partitions (g);
  if (partitions == NULL)
    exit (EXIT_FAILURE);

  int need_rescan = 0;
  size_t i;
  for (i = 0; partitions[i] != NULL; ++i) {
    CLEANUP_FREE char *type = guestfs_vfs_type (g, partitions[i]);
    if (type && STREQ (type, "crypto_LUKS")) {
      char mapname[32];
      make_mapname (partitions[i], mapname, sizeof mapname);

      CLEANUP_FREE char *key = read_key (partitions[i]);
      /* XXX Should we call guestfs_luks_open_ro if readonly flag
       * is set?  This might break 'mount_ro'.
       */
      if (guestfs_luks_open (g, partitions[i], key, mapname) == -1)
        exit (EXIT_FAILURE);

      need_rescan = 1;
    }
  }

  if (need_rescan) {
    if (guestfs_vgscan (g) == -1)
      exit (EXIT_FAILURE);
    if (guestfs_vg_activate_all (g, 1) == -1)
      exit (EXIT_FAILURE);
  }
}

int
add_elements(struct ds_context *ctx)
{
	PMEMobjpool *pop;
	int errors = 0;
	int i;
	int key_len;
	int val_len;
	unsigned char *key;
	unsigned char *value;

	if (ctx == NULL) {
		errors++;
	} else if (ctx->pop == NULL) {
		errors++;
	}

	if (!errors) {
		pop = ctx->pop;

		for (i = 0; i < ctx->insertions; i++) {
			key = NULL;
			value = NULL;
			key_len = read_key(&key);
			val_len = read_value(&value);
			art_insert(pop, key, key_len, value, val_len);
			if (key != NULL)
				free(key);
			if (value != NULL)
				free(value);
		}
	}

	return errors;
}

/*
**	funkey_keys(test_list, status, ch)
**
**	Test function keys
*/
static void
funkey_keys(
	       TestList * t,
	       int *state,
	       int *ch)
{
    char keybuf[256];

    if (keypad_xmit) {
	tc_putp(keypad_xmit);
    }
    keys_tested(1, 1, hex_out);	/* also clears screen */
    keybuf[0] = '\0';
    end_state = 0;
    if (scan_mode) {
	fkmax = scan_max;
    }
    tty_raw(0, char_mask);
    while (end_state != 'd') {
	read_key(keybuf, sizeof(keybuf));
	fresh_line();
	if (found_match(keybuf, hex_out, 0)) {
	    continue;
	}
	if (found_exit(keybuf, hex_out, 0)) {
	    break;
	}
    }
    if (keypad_local) {
	tc_putp(keypad_local);
    }
    keys_tested(0, 0, hex_out);
    ptext("Function key test ");
    generic_done_message(t, state, ch);
}

/*************************************************************************
 * posix_read_keyboard --- 
 *
 * 引数：	caller
 *		packet
 *
 * 返値：	E_OK を返す。
 *
 * 処理：	メッセージの送り手(POSIX lowlib)に文字列を返す。
 *
 */
W
posix_read_keyboard (ID caller, ID tskid, DDEV_PRD_REQ *packet)
{
  struct posix_response res;
  W		i;

#ifdef notdef
    dbg_printf("\nKEYBOARD: posix_read_keyboard %d len = %d\n",
	       caller, packet->length);
#endif
  {
    B buf[packet->length+1];

    for (i = 0; i < packet->length; i++) {
      buf[i] = read_key (driver_mode);
    }
    buf[packet->length] = 0;
    vput_reg(tskid, packet->buf, packet->length, buf);

    res.receive_port = 0;
    res.msg_length = sizeof (res);
    res.operation = PSC_READ;
    res.errno = EP_OK;
    res.status = packet->length;
    res.ret1 = 0;
    res.ret2 = 0;

#ifdef notdef
    dbg_printf("KEYBOARD: reply to app %d\n", caller);
#endif
    snd_mbf (caller, sizeof (res), &res);
    return (E_OK);
  }
}

static void setting_fma(int argc, char **argv)
{
	int c;
	
	/* suspend task haliza utama dulu */
	vTaskSuspend( hdl_tampilan );
	xSerialGetChar(1, &c, 20 );

	/* disable interrupt touchpad */
	//*pFIO_MASKA_S = 0;
	//ssync();
	
	while( 1 )
	{
		if (xSerialGetChar(1, &c, 20 ) == pdTRUE) break;
		cls_layar();
		read_key();
		update_lcd();
	}
	
	//cls_layar();	
	//*pFIO_MASKA_S = PORT_INT_KEYPAD;
	//ssync();
	vTaskResume( hdl_tampilan );

}

int main(int argc, char *argv[]) {
    if (argc != 4) error(2,
        "Usage: tweetnacl-verify sign.pub message.signed message.txt");

    // This will also erroneously fail if the file "-" exists
    if (file_exists(argv[3])) errorf(1, "File <%s> exists", argv[3]);

    unsigned char public_key[crypto_sign_PUBLICKEYBYTES];
    read_key(argv[1], public_key, crypto_sign_PUBLICKEYBYTES);

    Content c = read_file(argv[2]);
    unsigned char *m = malloc(c.size);
    // printf("%zu\n", c.size);
    unsigned long long msize;
    int result = crypto_sign_open(m, &msize, c.bytes, c.size, public_key);
    free(c.bytes);
    // printf("%i\n", result);
    if (result == -1) error(1, "Signature failed verification");

    if (strcmp(argv[3], "-") != 0) {
        FILE *out = create_file(argv[3]);
        fwrite(m, msize, 1, out);
        fclose(out);
    } else {
        fwrite(m, msize, 1, stdout);
    }

    free(m);
    return 0;
}

/*
**	probe_enq_ok()
**
**	does the terminal do enq/ack handshaking?
*/
static void 
probe_enq_ok(void)
{
	int tc, len, ulen;

	put_str("Testing ENQ/ACK, standby...");
	fflush(stdout);
	can_test("u8 u9", FLAG_TESTED);

	tty_ENQ = user9 ? user9 : "\005";
	tc_putp(tty_ENQ);
	event_start(TIME_SYNC);	/* start the timer */
	read_key(tty_ACK, TTY_ACK_SIZE - 1);

	if (event_time(TIME_SYNC) > 400000 || tty_ACK[0] == '\0') {
		/* These characters came from the user.  Sigh. */
		tty_can_sync = SYNC_FAILED;
		ptext("\nThis program expects the ENQ sequence to be");
		ptext(" answered with the ACK character.  This will help");
		ptext(" the program reestablish synchronization when");
		ptextln(" the terminal is overrun with data.");
		ptext("\nENQ sequence from (u9): ");
		putln(expand(tty_ENQ));
		ptext("ACK received: ");
		putln(expand(tty_ACK));
		len = user8 ? strlen(user8) : 0;
		sprintf(temp, "Length of ACK %d.  Expected length of ACK %d.",
			(int) strlen(tty_ACK), len);
		ptextln(temp);
		if (len) {
			temp[0] = user8[len - 1];
			temp[1] = '\0';
			ptext("Terminating character found in (u8): ");
			putln(expand(temp));
		}
		return;
	}

	tty_can_sync = SYNC_TESTED;
	if ((len = strlen(tty_ACK)) == 1) {
		/* single character acknowledge string */
		ACK_terminator = tty_ACK[0];
		ACK_length = 4096;
		return;
	}
	tc = tty_ACK[len - 1];
	if (user8) {
		ulen = strlen(user8);
		if (tc == user8[ulen - 1]) {
			/* ANSI style acknowledge string */
			ACK_terminator = tc;
			ACK_length = 4096;
			return;
		}
	}
	/* fixed length acknowledge string */
	ACK_length = len;
	ACK_terminator = -2;
}

int main(int argc, char **argv)
{
	int ret = EXIT_SUCCESS;
	int c;
	char *_in = NULL;
	char *_key = NULL;
	char *_out = NULL;
	FILE *in = NULL;
	FILE *out = NULL;
	char *key = NULL;
	long key_length;
 
	while((c = getopt(argc, argv, "i:k:o:")) != -1) {
		switch(c) {
		case 'i':
			_in = optarg;
			break;
		case 'k':
			_key = optarg;
			break;
		case 'o':
			_out = optarg;
			break;
		default:
			printf("Usage: xor -i in -k key -o out\n");
			return EXIT_FAILURE;
		}
	}
	if(_in == NULL || _key == NULL || _out == NULL) {
		printf("Usage: xor -i in -k key -o out\n");
		return EXIT_FAILURE;
	}
 
	if(read_key(_key, &key, &key_length) != 0) {
		printf("error reading %s\n", _key);
		return EXIT_FAILURE;
	}
 
	in = fopen(_in, "rb");
	if(in == NULL) {
		printf("error opening %s\n", _in);
		RET_GOTO(EXIT_FAILURE, free_key);
	}
 
	out = fopen(_out, "wb");
	if(out == NULL) {
		printf("error opening %s\n", _out);
		RET_GOTO(EXIT_FAILURE, close_in);
	}
	xor(in, out, key, key_length);
 
	fclose(out);
close_in:
	fclose(in);
free_key:
	free(key);
 
	return ret;
}