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https://github.com/SELinuxProject/selinux
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84 lines
2.2 KiB
Groff
84 lines
2.2 KiB
Groff
.TH "context_new" "3" "20 December 2011" "dwalsh@redhat.com" "SELinux API documentation"
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.SH "NAME"
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context_new, context_str, context_free, context_type_get, context_type_set, context_range_get, context_range_set,context_role_get, context_role_set, context_user_get, context_user_set \- Routines to manipulate SELinux security contexts
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.
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.SH "SYNOPSIS"
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.B #include <selinux/context.h>
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.sp
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.BI "context_t context_new(const char *" context_str );
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.sp
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.BI "const char * context_str(context_t " con );
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.sp
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.BI "void context_free(context_t " con );
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.sp
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.BI "const char * context_type_get(context_t " con );
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.sp
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.BI "const char * context_range_get(context_t " con );
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.sp
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.BI "const char * context_role_get(context_t " con );
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.sp
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.BI "const char * context_user_get(context_t " con );
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.sp
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.BI "int context_type_set(context_t " con ", const char *" type );
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.sp
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.BI "int context_range_set(context_t " con ", const char *" range );
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.sp
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.BI "int context_role_set(context_t " con ", const char *" role );
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.sp
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.BI "int context_user_set(context_t " con ", const char *" user );
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.
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.SH "DESCRIPTION"
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These functions allow an application to manipulate the fields of a
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security context string without requiring it to know the format of the
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string.
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.BR context_new ()
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returns a new context initialized to a context string.
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.BR context_str ()
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returns a pointer to the string value of the
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.BR context_t ,
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valid until the next call to
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.BR context_str ()
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or
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.BR context_free ()
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for the same
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.BR context_t* .
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.BR context_free ()
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frees the storage used by a context.
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.BR context_type_get (),
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.BR context_range_get (),
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.BR context_role_get (),
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.BR \%context_user_get ()
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get a pointer to the string value of a context component.
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.B Note:
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Values returned by the get functions are only valid until the next call
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to a set function or
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.BR context_free ()
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for the same
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.B context_t
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structure.
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.BR context_type_set (),
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.BR context_range_set (),
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.BR context_role_set (),
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.BR \%context_user_set ()
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set a context component.
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.
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.SH "RETURN VALUE"
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On failure
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.BR context_*_set ()
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functions return non-zero and 0 on success.
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The other functions return NULL on failure and non-NULL on success.
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On failure
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.I errno
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is set appropriately.
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.
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.SH "SEE ALSO"
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.BR selinux "(8)"
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