centos man page for context_role_set

context_new(3)						     SELinux API documentation						    context_new(3)

NAME
       context_new,  context_str,  context_free,  context_type_get,  context_type_set, context_range_get, context_range_set,context_role_get, con-
       text_role_set, context_user_get, context_user_set - Routines to manipulate SELinux security contexts

SYNOPSIS
       #include <selinux/context.h>

       context_t context_new(const char *context_str);

       const char * context_str(context_t con);

       void context_free(context_t con);

       const char * context_type_get(context_t con);

       const char * context_range_get(context_t con);

       const char * context_role_get(context_t con);

       const char * context_user_get(context_t con);

       int context_type_set(context_t con, const char *type);

       int context_range_set(context_t con, const char *range);

       int context_role_set(context_t con, const char *role);

       int context_user_set(context_t con, const char *user);

DESCRIPTION
       These functions allow an application to manipulate the fields of a security context string without requiring it to know the format  of  the
       string.

       context_new() returns a new context initialized to a context string.

       context_str()  returns a pointer to the string value of the context_t, valid until the next call to context_str() or context_free() for the
       same context_t*.

       context_free() frees the storage used by a context.

       context_type_get(), context_range_get(), context_role_get(), context_user_get() get a pointer to the string value of a context component.

       Note: Values returned by the get functions are only valid until the next call to a set function or context_free() for  the  same  context_t
       structure.

       context_type_set(), context_range_set(), context_role_set(), context_user_set() set a context component.

RETURN VALUE
       On failure context_*_set() functions return non-zero and 0 on success.

       The other functions return NULL on failure and non-NULL on success.

       On failure errno is set appropriately.

SEE ALSO
       selinux(8)

dwalsh@redhat.com						 20 December 2011						    context_new(3)