SECURE_PATH(3) Library Functions Manual SECURE_PATH(3)

secure_path
determine if a file appears to be ``secure''

System Utilities Library (libutil, -lutil)

#include <util.h>

int
secure_path(const char *path);

The secure_path() function takes a path name and returns zero if the referenced file is “secure”, non-zero if not. Any “insecurity”, other than failure to access the referenced file, will be logged to the system log.

To be “secure”, the referenced file must exist, be a regular file (and not a directory), owned by the super-user, and writable only by the super-user.

openlog(3)

The secure_path() function is based on the BSD/OS implementation of same, and appeared in NetBSD 1.5 by kind permission.
May 4, 2010 NetBSD 9.0