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/* $OpenBSD: suidexec_none.c,v 1.1 2014/08/27 07:36:14 blambert Exp $ */
/*
* Written by Bret Stephen Lambert <blambert@openbsd.org> 2014
* Public Domain.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/wait.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <unistd.h>
#include "setuid_regress.h"
int
main(int argc, char *argv[])
{
struct kinfo_proc kproc;
char *toexec = NULL;
if (argc > 1) {
argv++;
if ((toexec = strdup(argv[0])) == NULL)
err(1, "strdup");
}
/* should only respond to setuid upon exec */
if (issetugid())
errx(1, "process incorrectly marked as issetugid()");
if (read_kproc_pid(&kproc, getpid()) == -1)
err(1, "kproc read failed");
if (kproc.p_psflags & PS_SUGID)
errx(1, "PS_SUGID not set");
if (kproc.p_psflags & PS_SUGIDEXEC)
errx(1, "PS_SUGIDEXEC incorrectly set");
if (toexec != NULL)
if (execv(toexec, argv) == -1)
err(1, "exec of %s failed", toexec);
free(toexec);
exit(0);
}
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