helloworld.c File Reference

This application is a simple example of how to read command line arguments and output to console. More...

#include <Uefi.h>
#include <Library/UefiLib.h>
#include <Library/ShellCEntryLib.h>
#include <UEFIStarter/core.h>

Functions
BOOLEAN	validate_int (cmdline_value_t value)
	Validator function for "-int" parameter. More...
INTN EFIAPI	ShellAppMain (UINTN argc, CHAR16 **argv)
	Main function, gets invoked by UEFI shell. More...

Variables
cmdline_argument_t	args1 []
	command-line arguments in group 1 More...
cmdline_argument_group_t	_arg_group1 ={ L"Group 1" ,sizeof( args1 )/sizeof(cmdline_argument_t), args1 }
	command-line argument group 1
cmdline_argument_t	args2 []
	command-line arguments in group 2 More...
cmdline_argument_group_t	_arg_group2 ={ L"Group 2" ,sizeof( args2 )/sizeof(cmdline_argument_t), args2 }
	command-line argument group 2

Detailed Description

This application is a simple example of how to read command line arguments and output to console.

Author

Richard Nusser

Copyright

2017-2018 Richard Nusser

License

GPLv3 (see http://www.gnu.org/licenses/)

See also

https://github.com/rinusser/UEFIStarter

Function Documentation

validate_int()

BOOLEAN validate_int

(

cmdline_value_t

value

)

Validator function for "-int" parameter.

Values must be greater than or equal to 2 to be valid.

Parameters

value

the value to validate

Returns

whether the value is >=2

ShellAppMain()

INTN EFIAPI ShellAppMain	(	UINTN	argc,
		CHAR16 **	argv
	)

Main function, gets invoked by UEFI shell.

Parameters

argc	the number of command-line arguments passed
argv	the command-line arguments passed

Returns

an EFI status code for the shell

Variable Documentation

args1

cmdline_argument_t args1[]

Initial value:

= {
  {{uint64:0},ARG_BOOL,  NULL,L"-bool",L"boolean parameter"},
  {{dbl:0.66},ARG_DOUBLE,NULL,L"-dbl", L"double parameter"},
}

command-line arguments in group 1

args2

cmdline_argument_t args2[]

Initial value:

= {
  {{uint64:2},ARG_INT,validate_int,L"-int",L"integer parameter"},
}

command-line arguments in group 2