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Full Discussion: Extract sequences of bytes from binary for differents blocks
Top Forums Shell Programming and Scripting Extract sequences of bytes from binary for differents blocks Post 302845143 by Ophiuchus on Wednesday 21st of August 2013 02:53:14 AM
Old 08-21-2013
hello ahamed,

Thanks really for your help!

Now is displayed much better, all data related with one block in a single line.

In order to print without spaces the bytes I've changed the
Code:
printf("%02x ", ptr[i]);

to
Code:
printf("%02x", ptr[i]);

But I'm trying to separate each sequence by "|" in this way:
For the first bytes sequences extracted
Code:
1 byte|3 bytes|8 bytes|8 bytes

Example:

32|000001|991145278934550f|73494549232fffff

And for the other sequences that begin with 0x80, 0x81 etc like this:
Code:
1 byte|1 byte|1 byte|1 byte|4 bytes|8 bytes|1 byte

Example:

80 0f 01 02 00000030 7349526905ffffff 00

for 0x83 ... would be one byte more:
Code:
|1 byte|1 byte|1 byte|1 byte|4 bytes|8 bytes|1 byte|1 byte
Example:
83|10|01|0c|0000009f|7349526905ffffff|01|01

I hope you can help me with this printing.

Thanks so much
 

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LEARN ABOUT OSX

gb18030

GB18030(5)						      BSD File Formats Manual							GB18030(5)

NAME

     gb18030 -- GB 18030 encoding method for Chinese text

SYNOPSIS

     ENCODING "GB18030"

DESCRIPTION

     The GB18030 encoding implements GB 18030-2000, a PRC national standard for the encoding of Chinese characters.  It is a superset of the older
     GB 2312-1980 and GBK encodings, and incorporates Unicode's Unihan Extension A completely.	It also provides code space for all Unicode 3.0
     code points.

     Multibyte characters in the GB18030 encoding can be one byte, two bytes, or four bytes long.  There are a total of over 1.5 million code
     positions.

     GB 11383-1981 (ASCII) characters are represented by single bytes in the range 0x00 to 0x7F.

     Chinese characters are represented as either two bytes or four bytes.  Characters that are represented by two bytes begin with a byte in the
     range 0x81-0xFE and end with a byte either in the range 0x40-0x7E or 0x80-0xFE.

     Characters that are represented by four bytes begin with a byte in the range 0x81-0xFE, have a second byte in the range 0x30-0x39, a third
     byte in the range 0x81-0xFE and a fourth byte in the range 0x30-0x39.

SEE ALSO

     euc(5), gb2312(5), gbk(5), utf8(5)

     Chinese National Standard GB 18030-2000: Information Technology -- Chinese ideograms coded character set for information interchange --
     Extension for the basic set, March 2000.

     The Unicode Standard, Version 3.0, The Unicode Consortium, 2000.

STANDARDS

     The GB18030 encoding is believed to be compatible with GB 18030-2000.

BSD
								  August 10, 2003							       BSD
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