/*
* appTeardown()
*
* Teardown all modules, close all files, and tidy up all
* application state.
*
* This function is idempotent.
*/
static void
appTeardown(
void)
{
static int teardownFlag = 0;
if (teardownFlag) {
return;
}
teardownFlag = 1;
if (ipset) {
skIPSetDestroy(&ipset);
}
skStreamDestroy(&in_stream);
skStreamDestroy(&out_stream);
skIPSetOptionsTeardown();
skAppUnregister();
}
int main(int argc, char **argv)
{
char errbuf[2 * PATH_MAX];
const char *filename = NULL;
skstream_t *stream = NULL;
skIPWildcard_t ipwild;
skipset_t *input_set = NULL;
skipset_t *wild_set = NULL;
char buf[64];
int found_match = 0; /* application return value */
int rv;
appSetup(argc, argv); /* never returns on error */
/* Build an IP wildcard from the pattern argument */
rv = skStringParseIPWildcard(&ipwild, pattern);
if (rv) {
skAppPrintErr("Invalid IP '%s': %s",
pattern, skStringParseStrerror(rv));
skAppUsage();
}
if (count && !quiet) {
/* Create an IPset containing the IPwildcard */
if ((rv = skIPSetCreate(&wild_set, skIPWildcardIsV6(&ipwild)))
|| (rv = skIPSetInsertIPWildcard(wild_set, &ipwild))
|| (rv = skIPSetClean(wild_set)))
{
skAppPrintErr("Unable to create temporary IPset: %s",
skIPSetStrerror(rv));
return EXIT_FAILURE;
}
}
/* Iterate over the set files */
while ((filename = appNextInput(argc, argv)) != NULL) {
/* Load the input set */
if ((rv = skStreamCreate(&stream, SK_IO_READ, SK_CONTENT_SILK))
|| (rv = skStreamBind(stream, filename))
|| (rv = skStreamOpen(stream)))
{
skStreamLastErrMessage(stream, rv, errbuf, sizeof(errbuf));
skAppPrintErr("Unable to read IPset from '%s': %s",
filename, errbuf);
skStreamDestroy(&stream);
continue;
}
rv = skIPSetRead(&input_set, stream);
if (rv) {
if (SKIPSET_ERR_FILEIO == rv) {
skStreamLastErrMessage(stream,
skStreamGetLastReturnValue(stream),
errbuf, sizeof(errbuf));
} else {
strncpy(errbuf, skIPSetStrerror(rv), sizeof(errbuf));
}
skAppPrintErr("Unable to read IPset from '%s': %s",
filename, errbuf);
skStreamDestroy(&stream);
continue;
}
skStreamDestroy(&stream);
if (quiet || !count) {
/* Only need to check for a match */
if (skIPSetCheckIPWildcard(input_set, &ipwild)) {
found_match = 1;
if (quiet) {
goto done;
}
printf("%s\n", filename);
}
} else {
/* Need a count of IPs, so intersect */
rv = skIPSetIntersect(input_set, wild_set);
if (rv) {
skAppPrintErr("Unable to intersect IPsets: %s",
skIPSetStrerror(rv));
skIPSetDestroy(&input_set);
skIPSetDestroy(&wild_set);
return EXIT_FAILURE;
}
printf("%s:%s\n",
filename,
skIPSetCountIPsString(input_set, buf, sizeof(buf)));
if ('0' != buf[0]) {
found_match = 1;
}
}
skIPSetDestroy(&input_set);
}
done:
/* done */
skIPSetDestroy(&input_set);
skIPSetDestroy(&wild_set);
return ((found_match) ? 0 : 1);
}