diff options
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/check_ssh.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/plugins/check_ssh.c b/plugins/check_ssh.c index 6e0b0f17..86267b29 100644 --- a/plugins/check_ssh.c +++ b/plugins/check_ssh.c @@ -34,6 +34,7 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net"; int port = -1; char *server_name = NULL; +char *remote_version = NULL; int verbose = FALSE; int process_arguments (int, char **); @@ -41,7 +42,7 @@ int validate_arguments (void); void print_help (void); void print_usage (void); -int ssh_connect (char *haddr, int hport); +int ssh_connect (char *haddr, int hport, char *remote_version); int main (int argc, char **argv) @@ -60,7 +61,7 @@ main (int argc, char **argv) alarm (socket_timeout); /* ssh_connect exits if error is found */ - result = ssh_connect (server_name, port); + result = ssh_connect (server_name, port, remote_version); alarm (0); @@ -84,6 +85,7 @@ process_arguments (int argc, char **argv) {"use-ipv6", no_argument, 0, '6'}, {"timeout", required_argument, 0, 't'}, {"verbose", no_argument, 0, 'v'}, + {"remote-version", required_argument, 0, 'r'}, {0, 0, 0, 0} }; @@ -95,7 +97,7 @@ process_arguments (int argc, char **argv) strcpy (argv[c], "-t"); while (1) { - c = getopt_long (argc, argv, "+Vhv46t:H:p:", longopts, &option); + c = getopt_long (argc, argv, "+Vhv46t:r:H:p:", longopts, &option); if (c == -1 || c == EOF) break; @@ -109,7 +111,7 @@ process_arguments (int argc, char **argv) case 'h': /* help */ print_help (); exit (STATE_OK); - case 'v': /* verose */ + case 'v': /* verbose */ verbose = TRUE; break; case 't': /* timeout period */ @@ -128,6 +130,9 @@ process_arguments (int argc, char **argv) usage (_("IPv6 support not available\n")); #endif break; + case 'r': /* remote version */ + remote_version = optarg; + break; case 'H': /* host */ if (is_host (optarg) == FALSE) usage2 (_("Invalid host name/address"), optarg); @@ -183,7 +188,7 @@ validate_arguments (void) *-----------------------------------------------------------------------*/ int -ssh_connect (char *haddr, int hport) +ssh_connect (char *haddr, int hport, char *remote_version) { int sd; int result; @@ -214,13 +219,22 @@ ssh_connect (char *haddr, int hport) ssh_proto = output + 4; ssh_server = ssh_proto + strspn (ssh_proto, "-0123456789. "); ssh_proto[strspn (ssh_proto, "0123456789. ")] = 0; - printf - (_("SSH OK - %s (protocol %s)\n"), - ssh_server, ssh_proto); + asprintf (&buffer, "SSH-%s-check_ssh_%s\r\n", ssh_proto, rev_no); send (sd, buffer, strlen (buffer), MSG_DONTWAIT); if (verbose) printf ("%s\n", buffer); + + if (remote_version && strcmp(remote_version, ssh_server)) { + printf + (_("SSH WARNING - %s (protocol %s) version mismatch, expected '%s'\n"), + ssh_server, ssh_proto, remote_version); + exit (STATE_WARNING); + } + + printf + (_("SSH OK - %s (protocol %s)\n"), + ssh_server, ssh_proto); exit (STATE_OK); } } @@ -248,6 +262,10 @@ print_help (void) printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT); + printf (_("\ + -r, --remote-version=STRING\n\ + Warn if string doesn't match expected server version (ex: OpenSSH_3.9p1)\n")); + printf (_(UT_VERBOSE)); printf (_(UT_SUPPORT)); @@ -257,7 +275,7 @@ void print_usage (void) { printf (_("\ -Usage: %s [-46] [-t <timeout>] [-p <port>] <host>\n"), progname); +Usage: %s [-46] [-t <timeout>] [-r <remote version>] [-p <port>] <host>\n"), progname); printf (_(UT_HLP_VRS), progname, progname); } |