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Trusted Extensions Developer's Guide     Oracle Solaris 11.1 Information Library
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Document Information

Preface

1.  Trusted Extensions APIs and Security Policy

2.  Labels and Clearances

3.  Label Code Examples

Obtaining a Process Label

Obtaining a File Label

Setting a File Sensitivity Label

Determining the Relationship Between Two Labels

Obtaining the Color Names of Labels

4.  Interprocess Communications

5.  Trusted X Window System

6.  Label Builder GUI

7.  Trusted Web Guard Prototype

8.  Experimental Java Bindings for the Solaris Trusted Extensions Label APIs

A.  Programmer's Reference

B.  Trusted Extensions API Reference

Index

Obtaining a File Label

You can obtain a file's sensitivity label and perform operations on that label.

This code example uses the getlabel() routine to obtain the file's label. The fgetlabel() routine can be used in the same way, but it operates on a file descriptor.

#include <tsol/label.h>

main()
{
    m_label_t* docLabel;
    const char* path = "/zone/restricted/documents/designdoc.odt";
    int retval;
    char* label_string;

    /* allocate label and get the file label specified by path */
    docLabel = m_label_alloc(MAC_LABEL);
    retval = getlabel(path, docLabel);

    /* translate the file's label to a string and print the string */
    retval = label_to_str(docLabel, &label_string, M_LABEL, LONG_NAMES);
    printf("The file's label = %s\n", label_string);
    
    /* free allocated memory */
    m_label_free(docLabel);
    free(label_string);
    }

When you run this program, the output might look similar to this:

The file's label = CONFIDENTIAL : INTERNAL USE ONLY