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getenforce.c
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getenforce.c
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#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "selinux_internal.h"
#include "policy.h"
#include <stdio.h>
#include <limits.h>
int security_getenforce(void)
{
int fd, ret, enforce = 0;
char path[PATH_MAX];
char buf[20];
if (!selinux_mnt) {
errno = ENOENT;
return -1;
}
snprintf(path, sizeof path, "%s/enforce", selinux_mnt);
fd = open(path, O_RDONLY | O_CLOEXEC);
if (fd < 0)
return -1;
memset(buf, 0, sizeof buf);
ret = read(fd, buf, sizeof buf - 1);
close(fd);
if (ret < 0)
return -1;
if (sscanf(buf, "%d", &enforce) != 1)
return -1;
return !!enforce;
}