X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_ssh.c;h=5617addc66baded12d9ead64636878626471b551;hb=45b373ebdad0c82296342f4ad774db2ff643e511;hp=26709a7d91e4fd7a5cb7fc49fc7789885d0348ef;hpb=f4f92be60c94fd4e0dd4b2b4b3101543eedb706a;p=nagiosplug.git diff --git a/plugins/check_ssh.c b/plugins/check_ssh.c index 26709a7..5617add 100644 --- a/plugins/check_ssh.c +++ b/plugins/check_ssh.c @@ -14,17 +14,19 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + $Id$ + ******************************************************************************/ -#include "common.h" -#include "netutils.h" -#include "utils.h" - const char *progname = "check_ssh"; const char *revision = "$Revision$"; -const char *copyright = "2000-2003"; +const char *copyright = "2000-2004"; const char *email = "nagiosplug-devel@lists.sourceforge.net"; +#include "common.h" +#include "netutils.h" +#include "utils.h" + #ifndef MSG_DONTWAIT #define MSG_DONTWAIT 0 #endif @@ -34,6 +36,7 @@ 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 **); @@ -41,22 +44,29 @@ 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) { - int result; + int result = STATE_UNKNOWN; + + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); if (process_arguments (argc, argv) == ERROR) - usage (_("Could not parse arguments\n")); + usage4 (_("Could not parse arguments")); /* initialize alarm signal handling */ signal (SIGALRM, socket_timeout_alarm_handler); + 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); @@ -64,6 +74,7 @@ main (int argc, char **argv) } + /* process command-line arguments */ int process_arguments (int argc, char **argv) @@ -80,6 +91,7 @@ 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} }; @@ -91,26 +103,26 @@ 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; switch (c) { case '?': /* help */ - usage (""); + usage2 (_("Unknown argument"), optarg); case 'V': /* version */ print_revision (progname, revision); exit (STATE_OK); case 'h': /* help */ print_help (); exit (STATE_OK); - case 'v': /* verose */ + case 'v': /* verbose */ verbose = TRUE; break; case 't': /* timeout period */ if (!is_integer (optarg)) - usage (_("Timeout Interval must be an integer!\n\n")); + usage2 (_("Timeout interval must be a positive integer"), optarg); else socket_timeout = atoi (optarg); break; @@ -121,12 +133,15 @@ process_arguments (int argc, char **argv) #ifdef USE_IPV6 address_family = AF_INET6; #else - usage (_("IPv6 support not available\n")); + usage4 (_("IPv6 support not available")); #endif break; + case 'r': /* remote version */ + remote_version = optarg; + break; case 'H': /* host */ if (is_host (optarg) == FALSE) - usage ("Invalid hostname/address\n"); + usage2 (_("Invalid hostname/address"), optarg); server_name = optarg; break; case 'p': /* port */ @@ -134,11 +149,9 @@ process_arguments (int argc, char **argv) port = atoi (optarg); } else { - printf ("Port number nust be a positive integer: %s\n", optarg); - usage (""); + usage2 (_("Port number must be a positive integer"), optarg); } } - } c = optind; @@ -178,8 +191,9 @@ validate_arguments (void) * *-----------------------------------------------------------------------*/ + int -ssh_connect (char *haddr, int hport) +ssh_connect (char *haddr, int hport, char *remote_version) { int sd; int result; @@ -210,17 +224,29 @@ 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); + close(sd); exit (STATE_OK); } } + + void print_help (void) { @@ -229,10 +255,10 @@ print_help (void) print_revision (progname, revision); - printf (_("Copyright (c) 1999 Remi Paulmier \n")); - printf (_(COPYRIGHT), copyright, email); + printf ("Copyright (c) 1999 Remi Paulmier \n"); + printf (COPYRIGHT, copyright, email); - printf (_("Try to connect to SSH server at specified server and port\n\n")); + printf (_("Try to connect to an SSH server at specified server and port\n\n")); print_usage (); @@ -244,17 +270,21 @@ 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)); } + + void print_usage (void) { - printf (_("\ -Usage: %s [-46] [-t ] [-p ] \n"), progname); - printf (_(UT_HLP_VRS), progname, progname); + printf ("\ +Usage: %s [-46] [-t ] [-r ] [-p ] \n", progname); } -/* end of check_ssh.c */