/* See LICENSE file for copyright and license details. */
-#include <err.h>
+#include <errno.h>
#include <pwd.h>
+#include <stdio.h>
+#include <string.h>
#include <sys/types.h>
#include <unistd.h>
struct passwd *pw = getpwuid(geteuid());
if (pw == NULL) {
- warn("Failed to get username");
+ fprintf(stderr, "getpwuid '%d': %s\n", geteuid(), strerror(errno));
return NULL;
}