debian man page for explain_program_name

explain_program_name(3) 				     Library Functions Manual					   explain_program_name(3)

NAME
       explain_program_name - manipulate the program name

SYNOPSIS
       #include <libexplain/libexplain.h>
       const char *explain_program_name_get(void);
       void explain_program_name_set(const char *name);
       void explain_program_name_assemble(int yesno);

DESCRIPTION
       These  functions  may  be  used to manipulate libexplain's idea of the command name of the current process, and whether or not that name is
       included in error messages.

   explain_program_name_get
       const char *explain_program_name_get(void);

       The explain_program_name_get function may be used to obtain the command name of the calling process.  Depending on how capable /proc is	on
       your  system,  or,  failing  that,  how capable lsof(1) is on your system, this may or may not produce a sensible result.  It works well on
       Linux.

       Returns:
	       pointer to string containing the command name (no slashes) of the calling process.

   explain_program_name_set
       void explain_program_name_set(const char *name);

       The explain_program_name_set function may be used to set the libexplain libraries' idea of the command name of the calling process, setting
       the string to be returned by the explain_program_name_get(3) function.  This overrides the automatic behavior, which can be quite desirable
       in commands that can be invoked with more than one name, e.g. if they are a hard link synonym.

       This also sets the option to include the program name in all of the error messages issued by the explain_*_or_die(3) functions.

       name    The name of the calling process.  Only the basename will be used if a path containing slashes is given.

   explain_program_name_assemble
       void explain_program_name_assemble(int yesno);

       The explain_program_name_assemble function is used to control whether or not the name of the calling process is to  be  included  in  error
       messages issued by the explain_*_or_die(3) functions.  If not explicitly set, is controlled by the EXPLAIN_OPTIONS environment variable, or
       defaults to true if not set there either.

       yesno   non-zero (true) to have program name included, zero (false) to have program name excluded.

COPYRIGHT
       libexplain version 0.52
       Copyright (C) 2008 Peter Miller

AUTHOR
       Written by Peter Miller <pmiller@opensource.org.au>

															   explain_program_name(3)