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Full Discussion: How to parse a binary file?
Top Forums UNIX for Advanced & Expert Users How to parse a binary file? Post 302810507 by Ophiuchus on Wednesday 22nd of May 2013 01:47:53 AM
Old 05-22-2013
Hello wisecracker,

Thank your for the help.
Quote:
Originally Posted by wisecracker
(How is it that I, a mere amateur, is showing a professional the way?)
Actually I'm not a proffesional in this area of programming or unix, in fact I'm a newbie in bash scripts. I only asking in the forum where experts could help.

Now my problem would be how to decode based on description, because sequences of bytes are interpreted sometimes as iso coded, sometimes as decimal values, sometimes as binary coded. I think here is where a template for parsing is needed but I don't know how to do it helping me with the hexdump command.

With hexdump, is possible convert an hex number like "A" into binary?
A=1010.

Thanks for help so far.

Regards
 

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bltocolor(3TSOL)				       Trusted Extensions Library Functions					  bltocolor(3TSOL)

NAME
bltocolor, bltocolor_r - get character-coded color name of label SYNOPSIS
cc [flag...] file... -ltsol [library...] #include <tsol/label.h> char *bltocolor(const m_label_t *label); char *bltocolor_r(const m_label_t *label, const int size, char *color_name); DESCRIPTION
The bltocolor() and bltocolor_r() functions get the character-coded color name associated with the binary label label. The calling process must have PRIV_SYS_TRANS_LABEL in its set of effective privileges to get color names of labels that dominate the cur- rent process's sensitivity label. RETURN VALUES
The bltocolor() function returns a pointer to a statically allocated string that contains the character-coded color name specified for the label or returns (char *)0 if, for any reason, no character-coded color name is available for this binary label. The bltocolor_r() function returns a pointer to the color_name string which contains the character-coded color name specified for the label or returns (char *)0 if, for any reason, no character-coded color name is available for this binary label. color_name must provide for a string of at least size characters. FILES
/etc/security/tsol/label_encodings The label encodings file contains the classification names, words, constraints, and values for the defined labels of this system. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Obsolete | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe with exceptions | +-----------------------------+-----------------------------+ These functions are obsolete and retained for ease of porting. They might be removed in a future Solaris Trusted Extensions release. Use the label_to_str(3TSOL) function instead. The bltocolor() function returns a pointer to a statically allocated string. Subsequent calls to it will overwrite that string with a new character-coded color name. It is not MT-Safe. The bltocolor_r() function should be used in multithreaded applications. SEE ALSO
label_to_str(3TSOL), libtsol(3LIB), attributes(5) NOTES
The functionality described on this manual page is available only if the system is configured with Trusted Extensions. If label includes a specified word or words, the character-coded color name associated with the first word specified in the label encodings file is returned. Otherwise, if no character-coded color name is specified for label, the first character-coded color name specified in the label encodings file with the same classification as the binary label is returned. SunOS 5.11 20 Jul 2007 bltocolor(3TSOL)
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