selinux/libselinux/utils/selabel_partial_match.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <errno.h>
#include <stdbool.h>
#include <selinux/selinux.h>
#include <selinux/label.h>
static void usage(const char *progname)
{
fprintf(stderr,
"usage: %s [-v] -p <path> [-f file]\n\n"
"Where:\n\t"
"-v Validate file_contxts entries against loaded policy.\n\t"
"-p Path to check if a match or partial match is possible\n\t"
" against a regex entry in the file_contexts file.\n\t"
"-f Optional file_contexts file (defaults to current policy).\n\n"
"Example:\n\t"
"%s -p /sys/devices/system/cpu/online\n\t"
" Check if a match or partial match is possible against\n\t"
" the path \"/sys/devices/system/cpu/online\", returning\n\t"
" TRUE or FALSE.\n\n", progname, progname);
exit(1);
}
int main(int argc, char **argv)
{
int opt;
bool partial_match;
char *validate = NULL, *path = NULL, *file = NULL;
struct selabel_handle *hnd;
struct selinux_opt selabel_option[] = {
{ SELABEL_OPT_PATH, file },
{ SELABEL_OPT_VALIDATE, validate }
};
if (argc < 2)
usage(argv[0]);
while ((opt = getopt(argc, argv, "f:vp:")) > 0) {
switch (opt) {
case 'f':
file = optarg;
break;
case 'v':
validate = (char *)1;
break;
case 'p':
path = optarg;
break;
default:
usage(argv[0]);
}
}
selabel_option[0].value = file;
selabel_option[1].value = validate;
hnd = selabel_open(SELABEL_CTX_FILE, selabel_option, 2);
if (!hnd) {
fprintf(stderr, "ERROR: selabel_open - Could not obtain "
"handle.\n");
return -1;
}
partial_match = selabel_partial_match(hnd, path);
printf("Match or Partial match: %s\n",
partial_match == 1 ? "TRUE" : "FALSE");
selabel_close(hnd);
return partial_match;
}