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Solaris Trusted Extensions Developer's Guide
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Obtaining the Color Names of Labels

This code example uses the label_to_str() function to obtain the color name of a label. The mappings between color names and labels are defined in the label_encodings file.

#include <stdlib.h>
#include <stdio.h>

#include <tsol/label.h>

int
main()
{
   m_label_t *plabel;
   char *label = NULL;
   char *color = NULL;

   plabel = m_label_alloc(MAC_LABEL);

   if (getplabel(plabel) == -1) {
      perror("getplabel");
      exit(1);
   }

   if (label_to_str(plabel, &color, M_COLOR, 0) != 0) {
      perror("label_to_string(M_COLOR)");
      exit(1);
   }
   if (label_to_str(plabel, &label, M_LABEL, DEF_NAMES) != 0) {
      perror("label_to_str(M_LABEL)");
      exit(1);
   }

   printf("The color for the \"%s\" label is \"%s\".\n, label, color);

   m_label_free(plabel);

   return (0);
}

If the label_encodings file maps the color blue to the label CONFIDENTIAL, the program prints the following:

The color for the "CONFIDENTIAL" label is "BLUE".
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  Published under the terms fo the Public Documentation License Version 1.01. Design by Interspire