NAME

       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

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)