mirror of
https://github.com/SELinuxProject/selinux
synced 2024-12-26 16:02:26 +00:00
bb3f428c08
When getsebool's main() fails to allocate memory for the boolean names, it returns without freeing variables first, even though other errors do this (with label "out"). This silences a warning reported by clang's static analyzer. Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
115 lines
2.3 KiB
C
115 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 __attribute__ ((__noreturn__)) 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 = NULL;
|
|
|
|
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 = calloc(len, sizeof(char *));
|
|
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]);
|
|
rc = 2;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|