diff options
Diffstat (limited to 'plugins/check_ssh.c')
| -rw-r--r-- | plugins/check_ssh.c | 62 |
1 files changed, 16 insertions, 46 deletions
diff --git a/plugins/check_ssh.c b/plugins/check_ssh.c index faaead6a..3efc2e62 100644 --- a/plugins/check_ssh.c +++ b/plugins/check_ssh.c @@ -34,7 +34,6 @@ int validate_arguments (void); void print_help (void); void print_usage (void); -char *ssh_resolve (char *hostname); int ssh_connect (char *haddr, short hport); int @@ -49,7 +48,7 @@ main (int argc, char **argv) alarm (socket_timeout); /* ssh_connect exits if error is found */ - ssh_connect (ssh_resolve (server_name), port); + ssh_connect (server_name, port); alarm (0); @@ -62,6 +61,7 @@ int process_arguments (int argc, char **argv) { int c; + char *tmp = NULL; #ifdef HAVE_GETOPT_H int option_index = 0; @@ -109,6 +109,8 @@ process_arguments (int argc, char **argv) socket_timeout = atoi (optarg); break; case 'H': /* host */ + if (is_host (optarg) == FALSE) + usage ("Invalid hostname/address\n"); server_name = optarg; break; case 'p': /* port */ @@ -125,9 +127,12 @@ process_arguments (int argc, char **argv) c = optind; if (server_name == NULL && argv[c]) { - server_name = argv[c++]; + if (is_host (argv[c])) { + server_name = argv[c++]; + } } - else if (port == -1 && argv[c]) { + + if (port == -1 && argv[c]) { if (is_intpos (argv[c])) { port = atoi (argv[c++]); } @@ -153,26 +158,6 @@ validate_arguments (void) /************************************************************************ * -* Resolve hostname into IP address -* -*-----------------------------------------------------------------------*/ - -char * -ssh_resolve (char *hostname) -{ - struct hostent *host; - - host = gethostbyname (hostname); - if (!host) { - herror (hostname); - exit (STATE_CRITICAL); - } - return (host->h_addr); -} - - -/************************************************************************ -* * Try to connect to SSH server at specified server and port * *-----------------------------------------------------------------------*/ @@ -180,10 +165,8 @@ ssh_resolve (char *hostname) int ssh_connect (char *haddr, short hport) { - int s; - struct sockaddr_in addr; - int addrlen; - int len; + int sd; + int result; char *output = NULL; char *buffer = NULL; char *ssh_proto = NULL; @@ -192,27 +175,14 @@ ssh_connect (char *haddr, short hport) sscanf ("$Revision$", "$Revision: %[0123456789.]", revision); - addrlen = sizeof (addr); - memset (&addr, 0, addrlen); - addr.sin_port = htons (hport); - addr.sin_family = AF_INET; - bcopy (haddr, (void *) &addr.sin_addr.s_addr, 4); + result = my_tcp_connect (haddr, hport, &sd); - s = socket (AF_INET, SOCK_STREAM, 0); - if (!s) { - printf ("socket(): %s for %s:%d\n", strerror (errno), server_name, hport); - exit (STATE_CRITICAL); - } - - if (connect (s, (struct sockaddr *) &addr, addrlen)) { - printf ("connect(): %s for %s:%d\n", strerror (errno), server_name, - hport); - exit (STATE_CRITICAL); - } + if (result != STATE_OK) + return result; output = (char *) malloc (BUFF_SZ + 1); memset (output, 0, BUFF_SZ + 1); - recv (s, output, BUFF_SZ, 0); + recv (sd, output, BUFF_SZ, 0); if (strncmp (output, "SSH", 3)) { printf ("Server answer: %s", output); exit (STATE_CRITICAL); @@ -228,7 +198,7 @@ ssh_connect (char *haddr, short hport) ("SSH ok - %s (protocol %s)\n", ssh_server, ssh_proto); asprintf (&buffer, "SSH-%s-check_ssh_%s\r\n", ssh_proto, revision); - send (s, buffer, strlen (buffer), MSG_DONTWAIT); + send (sd, buffer, strlen (buffer), MSG_DONTWAIT); if (verbose) printf ("%s\n", buffer); exit (STATE_OK); |