TCPSpeedTest - I have a problem getting this to work. Server onl…

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Jesper Taxbøl / Mbed 2 deprecated TCPSpeedTest

I have a problem getting this to work. Server only recieves half of the data being sent. Whats wrong

services/mysql/mycrypt.c@0:66300c77c6e9, 2011-03-29 (annotated)

Committer:: tax
Date:: Tue Mar 29 13:20:15 2011 +0000
Revision:: 0:66300c77c6e9

Who changed what in which revision?

User	Revision	Line number	New contents of line
tax	0:66300c77c6e9	1	/* Copyright (C) 2007 MySQL AB & Michael Widenius
tax	0:66300c77c6e9	2
tax	0:66300c77c6e9	3	This program is free software; you can redistribute it and/or modify
tax	0:66300c77c6e9	4	it under the terms of the GNU General Public License as published by
tax	0:66300c77c6e9	5	the Free Software Foundation; version 2 of the License.
tax	0:66300c77c6e9	6
tax	0:66300c77c6e9	7	This program is distributed in the hope that it will be useful,
tax	0:66300c77c6e9	8	but WITHOUT ANY WARRANTY; without even the implied warranty of
tax	0:66300c77c6e9	9	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
tax	0:66300c77c6e9	10	GNU General Public License for more details.
tax	0:66300c77c6e9	11
tax	0:66300c77c6e9	12	You should have received a copy of the GNU General Public License
tax	0:66300c77c6e9	13	along with this program; if not, write to the Free Software
tax	0:66300c77c6e9	14	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
tax	0:66300c77c6e9	15
tax	0:66300c77c6e9	16	#define SCRAMBLE_LENGTH_323 8
tax	0:66300c77c6e9	17
tax	0:66300c77c6e9	18	#include <string.h>
tax	0:66300c77c6e9	19	#include <math.h>
tax	0:66300c77c6e9	20
tax	0:66300c77c6e9	21	typedef unsigned int uint;
tax	0:66300c77c6e9	22	typedef unsigned long ulong;
tax	0:66300c77c6e9	23	typedef unsigned char uchar;
tax	0:66300c77c6e9	24
tax	0:66300c77c6e9	25	struct my_rnd_struct {
tax	0:66300c77c6e9	26	unsigned long seed1,seed2,max_value;
tax	0:66300c77c6e9	27	double max_value_dbl;
tax	0:66300c77c6e9	28	};
tax	0:66300c77c6e9	29
tax	0:66300c77c6e9	30	static void my_rnd_init(struct my_rnd_struct *rand_st, ulong seed1, ulong seed2);
tax	0:66300c77c6e9	31	static double my_rnd(struct my_rnd_struct *rand_st);
tax	0:66300c77c6e9	32	static void hash_password(ulong result, const char password, uint password_len);
tax	0:66300c77c6e9	33
tax	0:66300c77c6e9	34	/*
tax	0:66300c77c6e9	35	Initialize random generator
tax	0:66300c77c6e9	36
tax	0:66300c77c6e9	37	NOTES
tax	0:66300c77c6e9	38	MySQL's password checks depends on this, so don't do any changes
tax	0:66300c77c6e9	39	that changes the random numbers that are generated!
tax	0:66300c77c6e9	40	*/
tax	0:66300c77c6e9	41
tax	0:66300c77c6e9	42	static void my_rnd_init(struct my_rnd_struct *rand_st, ulong seed1, ulong seed2)
tax	0:66300c77c6e9	43	{
tax	0:66300c77c6e9	44	rand_st->max_value= 0x3FFFFFFFL;
tax	0:66300c77c6e9	45	rand_st->max_value_dbl=(double) rand_st->max_value;
tax	0:66300c77c6e9	46	rand_st->seed1=seed1%rand_st->max_value ;
tax	0:66300c77c6e9	47	rand_st->seed2=seed2%rand_st->max_value;
tax	0:66300c77c6e9	48	}
tax	0:66300c77c6e9	49
tax	0:66300c77c6e9	50	/*
tax	0:66300c77c6e9	51	Generate random number.
tax	0:66300c77c6e9	52
tax	0:66300c77c6e9	53	SYNOPSIS
tax	0:66300c77c6e9	54	my_rnd()
tax	0:66300c77c6e9	55	rand_st INOUT Structure used for number generation
tax	0:66300c77c6e9	56
tax	0:66300c77c6e9	57	RETURN VALUE
tax	0:66300c77c6e9	58	generated pseudo random number
tax	0:66300c77c6e9	59	*/
tax	0:66300c77c6e9	60
tax	0:66300c77c6e9	61	static double my_rnd(struct my_rnd_struct *rand_st)
tax	0:66300c77c6e9	62	{
tax	0:66300c77c6e9	63	rand_st->seed1=(rand_st->seed1*3+rand_st->seed2) % rand_st->max_value;
tax	0:66300c77c6e9	64	rand_st->seed2=(rand_st->seed1+rand_st->seed2+33) % rand_st->max_value;
tax	0:66300c77c6e9	65	return (((double) rand_st->seed1)/rand_st->max_value_dbl);
tax	0:66300c77c6e9	66	}
tax	0:66300c77c6e9	67
tax	0:66300c77c6e9	68	/*
tax	0:66300c77c6e9	69	Generate binary hash from raw text string
tax	0:66300c77c6e9	70	Used for Pre-4.1 password handling
tax	0:66300c77c6e9	71	SYNOPSIS
tax	0:66300c77c6e9	72	hash_password()
tax	0:66300c77c6e9	73	result OUT store hash in this location
tax	0:66300c77c6e9	74	password IN plain text password to build hash
tax	0:66300c77c6e9	75	password_len IN password length (password may be not null-terminated)
tax	0:66300c77c6e9	76	*/
tax	0:66300c77c6e9	77
tax	0:66300c77c6e9	78	static void hash_password(ulong result, const char password, uint password_len)
tax	0:66300c77c6e9	79	{
tax	0:66300c77c6e9	80	register ulong nr=1345345333L, add=7, nr2=0x12345671L;
tax	0:66300c77c6e9	81	ulong tmp;
tax	0:66300c77c6e9	82	const char *password_end= password + password_len;
tax	0:66300c77c6e9	83	for (; password < password_end; password++)
tax	0:66300c77c6e9	84	{
tax	0:66300c77c6e9	85	if (password == ' ' \|\| password == '\t')
tax	0:66300c77c6e9	86	continue; /* skip space in password */
tax	0:66300c77c6e9	87	tmp= (ulong) (uchar) *password;
tax	0:66300c77c6e9	88	nr^= (((nr & 63)+add)*tmp)+ (nr << 8);
tax	0:66300c77c6e9	89	nr2+=(nr2 << 8) ^ nr;
tax	0:66300c77c6e9	90	add+=tmp;
tax	0:66300c77c6e9	91	}
tax	0:66300c77c6e9	92	result[0]=nr & (((ulong) 1L << 31) -1L); /* Don't use sign bit (str2int) */;
tax	0:66300c77c6e9	93	result[1]=nr2 & (((ulong) 1L << 31) -1L);
tax	0:66300c77c6e9	94	}
tax	0:66300c77c6e9	95
tax	0:66300c77c6e9	96
tax	0:66300c77c6e9	97
tax	0:66300c77c6e9	98	/*
tax	0:66300c77c6e9	99	Scramble string with password.
tax	0:66300c77c6e9	100	Used in pre 4.1 authentication phase.
tax	0:66300c77c6e9	101	SYNOPSIS
tax	0:66300c77c6e9	102	scramble_323()
tax	0:66300c77c6e9	103	to OUT Store scrambled message here. Buffer must be at least
tax	0:66300c77c6e9	104	SCRAMBLE_LENGTH_323+1 bytes long
tax	0:66300c77c6e9	105	message IN Message to scramble. Message must be at least
tax	0:66300c77c6e9	106	SRAMBLE_LENGTH_323 bytes long.
tax	0:66300c77c6e9	107	password IN Password to use while scrambling
tax	0:66300c77c6e9	108	*/
tax	0:66300c77c6e9	109
tax	0:66300c77c6e9	110	void scramble_323(char to, const char message, const char *password)
tax	0:66300c77c6e9	111	{
tax	0:66300c77c6e9	112	struct my_rnd_struct rand_st;
tax	0:66300c77c6e9	113	ulong hash_pass[2], hash_message[2];
tax	0:66300c77c6e9	114
tax	0:66300c77c6e9	115	if (password && password[0])
tax	0:66300c77c6e9	116	{
tax	0:66300c77c6e9	117	char extra, *to_start=to;
tax	0:66300c77c6e9	118	const char *message_end= message + SCRAMBLE_LENGTH_323;
tax	0:66300c77c6e9	119	hash_password(hash_pass,password, (uint) strlen(password));
tax	0:66300c77c6e9	120	hash_password(hash_message, message, SCRAMBLE_LENGTH_323);
tax	0:66300c77c6e9	121	my_rnd_init(&rand_st,hash_pass[0] ^ hash_message[0],
tax	0:66300c77c6e9	122	hash_pass[1] ^ hash_message[1]);
tax	0:66300c77c6e9	123	for (; message < message_end; message++)
tax	0:66300c77c6e9	124	to++= (char) (floor(my_rnd(&rand_st)31)+64);
tax	0:66300c77c6e9	125	extra=(char) (floor(my_rnd(&rand_st)*31));
tax	0:66300c77c6e9	126	while (to_start != to)
tax	0:66300c77c6e9	127	*(to_start++)^=extra;
tax	0:66300c77c6e9	128	}
tax	0:66300c77c6e9	129	*to= 0;
tax	0:66300c77c6e9	130	}
tax	0:66300c77c6e9	131

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	29 Mar 2011
Imports:	16
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

services/mysql/mycrypt.c@0:66300c77c6e9, 2011-03-29 (annotated)

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