selinux/libselinux/utils/getsebool.c
Dan Walsh bac96c8c70 libselinux: getsebool: support boolean name substitution
Use selinux_boolean_sub to translate the boolean name handed in by the user.
Report back the correct name of the boolean.

Signed-off-by: Eric Paris <eparis@redhat.com>
2012-09-12 13:14:29 -04:00

114 lines
2.3 KiB
C

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <getopt.h>
#include <errno.h>
#include <string.h>
#include <selinux/selinux.h>
static void usage(const char *progname)
{
fprintf(stderr, "usage: %s -a or %s boolean...\n", progname, progname);
exit(1);
}
int main(int argc, char **argv)
{
int i, get_all = 0, rc = 0, active, pending, len = 0, opt;
char **names;
while ((opt = getopt(argc, argv, "a")) > 0) {
switch (opt) {
case 'a':
if (argc > 2)
usage(argv[0]);
if (is_selinux_enabled() <= 0) {
fprintf(stderr, "%s: SELinux is disabled\n",
argv[0]);
return 1;
}
errno = 0;
rc = security_get_boolean_names(&names, &len);
if (rc) {
fprintf(stderr,
"%s: Unable to get boolean names: %s\n",
argv[0], strerror(errno));
return 1;
}
if (!len) {
printf("No booleans\n");
return 0;
}
get_all = 1;
break;
default:
usage(argv[0]);
}
}
if (is_selinux_enabled() <= 0) {
fprintf(stderr, "%s: SELinux is disabled\n", argv[0]);
return 1;
}
if (!len) {
if (argc < 2)
usage(argv[0]);
len = argc - 1;
names = malloc(sizeof(char *) * len);
if (!names) {
fprintf(stderr, "%s: out of memory\n", argv[0]);
return 2;
}
for (i = 0; i < len; i++) {
names[i] = strdup(argv[i + 1]);
if (!names[i]) {
fprintf(stderr, "%s: out of memory\n",
argv[0]);
return 2;
}
}
}
for (i = 0; i < len; i++) {
active = security_get_boolean_active(names[i]);
if (active < 0) {
if (get_all && errno == EACCES)
continue;
fprintf(stderr, "Error getting active value for %s\n",
names[i]);
rc = -1;
goto out;
}
pending = security_get_boolean_pending(names[i]);
if (pending < 0) {
fprintf(stderr, "Error getting pending value for %s\n",
names[i]);
rc = -1;
goto out;
}
char *alt_name = selinux_boolean_sub(names[i]);
if (! alt_name) {
perror("Out of memory\n");
rc = -1;
goto out;
}
if (pending != active) {
printf("%s --> %s pending: %s\n", alt_name,
(active ? "on" : "off"),
(pending ? "on" : "off"));
} else {
printf("%s --> %s\n", alt_name,
(active ? "on" : "off"));
}
free(alt_name);
}
out:
for (i = 0; i < len; i++)
free(names[i]);
free(names);
return rc;
}