Class: CapNG::Print

Inherits:
Object
  • Object
show all
Defined in:
ext/capng/print.c,
ext/capng/print.c

Overview

Print Linux capabitlities.

Examples:

require 'capng'

@print = CapNG::Print.new
@print.caps_text(:buffer, :effective)

Constant Summary collapse

STDOUT =

Print target into STDOUT.

LONG2NUM(CAPNG_PRINT_STDOUT)
BUFFER =

Print target into buffer varible.

LONG2NUM(CAPNG_PRINT_BUFFER)

Instance Method Summary collapse

Constructor Details

#initialize ⇒ nil

Initalize Print class.



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# File 'ext/capng/print.c', line 68

static VALUE
rb_capng_print_initialize(VALUE self)
{
  return Qnil;
}

Instance Method Details

#caps_numeric(rb_where_name_or_type, rb_select_name_or_enum) ⇒ Integer

Print capability as numeric.



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# File 'ext/capng/print.c', line 146

static VALUE
rb_capng_print_caps_numeric(VALUE self, VALUE rb_where_name_or_type,
                            VALUE rb_select_name_or_enum)
{
  char* result = NULL;
  capng_select_t select = 0;
  capng_print_t print_type = 0;

  switch (TYPE(rb_where_name_or_type)) {
    case T_SYMBOL:
      print_type =
        print_name_to_print_type(RSTRING_PTR(rb_sym2str(rb_where_name_or_type)));
      break;
    case T_STRING:
      print_type = print_name_to_print_type(StringValuePtr(rb_where_name_or_type));
      break;
    case T_FIXNUM:
      print_type = NUM2INT(rb_where_name_or_type);
      break;
    default:
      rb_raise(rb_eArgError,
               "Expected a String or a Symbol instance, or a print type constant");
  }

  switch (TYPE(rb_select_name_or_enum)) {
    case T_SYMBOL:
      select =
        select_name_to_select_type(RSTRING_PTR(rb_sym2str(rb_select_name_or_enum)));
      break;
    case T_STRING:
      select = select_name_to_select_type(StringValuePtr(rb_select_name_or_enum));
      break;
    case T_FIXNUM:
      select = NUM2INT(rb_select_name_or_enum);
      break;
    default:
      rb_raise(rb_eArgError,
               "Expected a String or a Symbol instance, or a capability type constant");
  }

  switch (print_type) {
    case CAPNG_PRINT_STDOUT:
      capng_print_caps_numeric(CAPNG_PRINT_STDOUT, select);
      break;
    case CAPNG_PRINT_BUFFER:
      result = capng_print_caps_numeric(CAPNG_PRINT_BUFFER, select);
  }

  if (result)
    return rb_str_new2(result);
  else
    return rb_str_new2("none");
}

#caps_text(rb_where_name_or_type, rb_capability_name_or_type) ⇒ Integer

Print capability as text.

constants



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# File 'ext/capng/print.c', line 83

static VALUE
rb_capng_print_caps_text(VALUE self, VALUE rb_where_name_or_type,
                         VALUE rb_capability_name_or_type)
{
  char* result = NULL;
  capng_type_t capability_type = 0;
  capng_print_t print_type = 0;

  switch (TYPE(rb_capability_name_or_type)) {
    case T_SYMBOL:
      capability_type = capability_type_name_to_capability_type(
        RSTRING_PTR(rb_sym2str(rb_capability_name_or_type)));
      break;
    case T_STRING:
      capability_type = capability_type_name_to_capability_type(
        StringValuePtr(rb_capability_name_or_type));
      break;
    case T_FIXNUM:
      capability_type = NUM2INT(rb_capability_name_or_type);
      break;
    default:
      rb_raise(rb_eArgError,
               "Expected a String or a Symbol instance, or a capability type constant");
  }

  switch (TYPE(rb_where_name_or_type)) {
    case T_SYMBOL:
      print_type =
        print_name_to_print_type(RSTRING_PTR(rb_sym2str(rb_where_name_or_type)));
      break;
    case T_STRING:
      print_type = print_name_to_print_type(StringValuePtr(rb_where_name_or_type));
      break;
    case T_FIXNUM:
      print_type = NUM2INT(rb_where_name_or_type);
      break;
    default:
      rb_raise(rb_eArgError,
               "Expected a String or a Symbol instance, or a print type constant");
  }

  switch (print_type) {
    case CAPNG_PRINT_STDOUT:
      capng_print_caps_text(CAPNG_PRINT_STDOUT, capability_type);
      break;
    case CAPNG_PRINT_BUFFER:
      result = capng_print_caps_text(CAPNG_PRINT_BUFFER, capability_type);
  }

  if (result)
    return rb_str_new2(result);
  else
    return rb_str_new2("none");
}