Index: check_smtp.c
===================================================================
RCS file: /usr/local/cvs/root/nagios-plugins/plugins/check_smtp.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- check_smtp.c 3 Jul 2003 23:27:44 -0000 1.1.1.1
+++ check_smtp.c 3 Jul 2003 23:35:52 -0000 1.2
@@ -69,12 +69,80 @@
char *server_address = NULL;
char *server_expect = NULL;
char *from_arg = " ";
+char *authtype = NULL;
+char *authuser = NULL;
+char *authpass = NULL;
int warning_time = 0;
int check_warning_time = FALSE;
int critical_time = 0;
int check_critical_time = FALSE;
int verbose = FALSE;
+/* encode64 routine from http://www.experts-exchange.com/Programming/Programming_Languages/C/Q_20245582.html */
+
+/* #define OK (0) */
+/* #define FAIL (-1) */
+#define BUFOVER (-2)
+#define CHAR64(c) (((c) < 0 || (c) > 127) ? -1 : index_64[(c)])
+static char basis_64[] =
+"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????";
+static char index_64[128] = {
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
+ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
+ -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1
+};
+
+static int
+encode64(const char *_in, unsigned inlen, char *_out, unsigned outmax, unsigned *outlen)
+{
+
+ const unsigned char *in = (const unsigned char *) _in;
+ unsigned char *out = (unsigned char *) _out;
+ unsigned char oval;
+ char *blah;
+ unsigned olen;
+
+ olen = (inlen + 2) / 3 * 4;
+ if (outlen)
+ *outlen = olen;
+ if (outmax < olen)
+ return BUFOVER;
+
+ blah = (char *) out;
+ while (inlen >= 3)
+ {
+/* user provided max buffer size; make sure we don't go over it */
+ *out++ = basis_64[in[0] >> 2];
+ *out++ = basis_64[((in[0] << 4) & 0x30) | (in[1] >> 4)];
+ *out++ = basis_64[((in[1] << 2) & 0x3c) | (in[2] >> 6)];
+ *out++ = basis_64[in[2] & 0x3f];
+ in += 3;
+ inlen -= 3;
+ }
+ if (inlen > 0)
+ {
+/* user provided max buffer size; make sure we don't go over it */
+ *out++ = basis_64[in[0] >> 2];
+ oval = (in[0] << 4) & 0x30;
+ if (inlen > 1)
+ oval |= in[1] >> 4;
+ *out++ = basis_64[oval];
+ *out++ = (inlen < 2) ? '=' : basis_64[(in[1] << 2) & 0x3c];
+ *out++ = '=';
+ }
+
+ if (olen < outmax)
+ *out = '\0';
+
+ return OK;
+
+}
+
int
main (int argc, char **argv)
{
@@ -151,14 +219,19 @@
&& (end_time - start_time) > warning_time) result =
STATE_WARNING;
- if (verbose == TRUE)
- printf ("SMTP %s - %d sec. response time, %s\n",
+ if (authtype == NULL) {
+ if (verbose == TRUE)
+ printf ("SMTP %s - %d sec. response time, %s\n",
state_text (result), (int) (end_time - start_time), buffer);
- else
- printf ("SMTP %s - %d second response time\n", state_text (result),
+ else
+ printf ("SMTP %s - %d second response time\n", state_text (result),
(int) (end_time - start_time));
+ }
}
}
+ }
+
+ if (result == STATE_OK) {
/* close the connection */
@@ -168,6 +241,112 @@
/* allow for response to helo command to reach us */
recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
+ if (authtype != NULL) {
+ if (strcmp (authtype, "LOGIN") == 0) {
+ if (authuser == NULL) {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - no authuser specified\n", state_text (result));
+ } else if (authpass == NULL) {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - no authpass specified\n", state_text (result));
+ } else {
+ char abuf[MAX_INPUT_BUFFER];
+ unsigned alen;
+ int ret;
+ do {
+ send(sd, "AUTH LOGIN\r\n", strlen("AUTH LOGIN\r\n"), 0);
+ if (verbose == TRUE) {
+ printf ("sent AUTH LOGIN\n");
+ }
+ if ((ret = recv(sd, buffer, MAX_INPUT_BUFFER-1, 0)) == -1) {
+ result = STATE_WARNING;
+ printf ("SMTP %s - recv() failed after AUTH LOGIN\n",
+ state_text (result));
+ break;
+ }
+ buffer[ret] = 0;
+ if (verbose == TRUE) {
+ printf ("received %s\n", buffer);
+ }
+ if (strncmp (buffer, "334", 3) != 0) {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - Invalid response received from host after AUTH LOGIN\n",
+ state_text (result));
+ break;
+ }
+ if (encode64 (authuser, strlen(authuser), abuf, MAX_INPUT_BUFFER, &alen) != OK) {
+ result = STATE_WARNING;
+ printf ("SMTP %s - Failed to base64-encode authuser\n",
+ state_text (result));
+ break;
+ }
+ strcat (abuf, "\r\n");
+ send(sd, abuf, strlen(abuf), 0);
+ if (verbose == TRUE) {
+ printf ("sent %s\n", abuf);
+ }
+ if ((ret = recv(sd, buffer, MAX_INPUT_BUFFER-1, 0)) == -1) {
+ result = STATE_WARNING;
+ printf ("SMTP %s - recv() failed after sending authuser\n",
+ state_text (result));
+ break;
+ }
+ buffer[ret] = 0;
+ if (verbose == TRUE) {
+ printf ("received %s\n", buffer);
+ }
+ if (strncmp (buffer, "334", 3) != 0) {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - Invalid response received from host after authuser\n",
+ state_text (result));
+ break;
+ }
+ if (encode64 (authpass, strlen(authpass), abuf, MAX_INPUT_BUFFER, &alen) != OK) {
+ result = STATE_WARNING;
+ printf ("SMTP %s - Failed to base64-encode authpass\n",
+ state_text (result));
+ break;
+ }
+ strcat (abuf, "\r\n");
+ send(sd, abuf, strlen(abuf), 0);
+ if (verbose == TRUE) {
+ printf ("sent %s\n", abuf);
+ }
+ if ((ret = recv(sd, buffer, MAX_INPUT_BUFFER-1, 0)) == -1) {
+ result = STATE_WARNING;
+ printf ("SMTP %s - recv() failed after sending authpass\n",
+ state_text (result));
+ break;
+ }
+ buffer[ret] = 0;
+ if (verbose == TRUE) {
+ printf ("received %s\n", buffer);
+ }
+ if (strncmp (buffer, "235", 3) != 0) {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - Invalid response received from host after authpass\n",
+ state_text (result));
+ break;
+ }
+ break;
+ } while (0);
+ if (result == STATE_OK) {
+ if (verbose == TRUE)
+ printf ("SMTP %s - %d sec. response time, %s\n",
+ state_text (result), (int) (end_time - start_time), buffer);
+ else
+ printf ("SMTP %s - %d second response time\n", state_text (result),
+ (int) (end_time - start_time));
+ }
+ }
+ } else {
+ result = STATE_CRITICAL;
+ printf ("SMTP %s - authtype %s is not supported\n", state_text (result), authtype);
+ }
+ }
+ }
+
+ if (result == STATE_OK) {
#ifdef SMTP_USE_DUMMYCMD
send(sd, from_str, strlen(from_str), 0);
@@ -211,6 +390,9 @@
{"warning", required_argument, 0, 'w'},
{"port", required_argument, 0, 'p'},
{"from", required_argument, 0, 'f'},
+ {"authtype", required_argument, 0, 'A'},
+ {"authuser", required_argument, 0, 'U'},
+ {"authpass", required_argument, 0, 'P'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
@@ -233,10 +415,10 @@
while (1) {
#ifdef HAVE_GETOPT_H
c =
- getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:", long_options,
+ getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:A:U:P:", long_options,
&option_index);
#else
- c = getopt (argc, argv, "+?hVvt:p:f:e:c:w:H:");
+ c = getopt (argc, argv, "+?hVvt:p:f:e:c:w:H:A:U:P:");
#endif
if (c == -1 || c == EOF)
break;
@@ -261,6 +443,15 @@
case 'f': /* from argument */
from_arg = optarg;
break;
+ case 'A':
+ authtype = optarg;
+ break;
+ case 'U':
+ authuser = optarg;
+ break;
+ case 'P':
+ authpass = optarg;
+ break;
case 'e': /* server expect string on 220 */
server_expect = optarg;
break;
@@ -355,6 +546,12 @@
" String to expect in first line of server response (default: %s)\n"
" -f, --from=STRING\n"
" from address to include in MAIL command (default NULL, Exchange2000 requires one)\n"
+ " -A, --authtype=STRING\n"
+ " SMTP AUTH type to check (default NULL, only LOGIN supported)\n"
+ " -U, --authuser=STRING\n"
+ " SMTP AUTH username\n"
+ " -P, --authpass=STRING\n"
+ " SMTP AUTH password\n"
" -w, --warning=INTEGER\n"
" Seconds necessary to result in a warning status\n"
" -c, --critical=INTEGER\n"
@@ -379,7 +576,7 @@
print_usage (void)
{
printf
- ("Usage: %s -H host [-e expect] [-p port] [-f from addr] [-w warn] [-c crit] [-t timeout] [-v]\n"
+ ("Usage: %s -H host [-e expect] [-p port] [-A authtype -U authuser -P authpass] [-f from addr] [-w warn] [-c crit] [-t timeout] [-v]\n"
" %s --help\n"
" %s --version\n", progname, progname, progname);
}