[monitoring-plugins] check_ssh: clang-format
Lorenz Kästle
git at monitoring-plugins.org
Thu Oct 31 16:20:13 CET 2024
Module: monitoring-plugins
Branch: master
Commit: 6410ef8acbc1445fd49da5c199febb5c2930ad65
Author: Lorenz Kästle <12514511+RincewindsHat at users.noreply.github.com>
Date: Thu Oct 31 15:55:04 2024 +0100
URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=6410ef8
check_ssh: clang-format
---
plugins/check_ssh.c | 330 ++++++++++++++++++++++++----------------------------
1 file changed, 149 insertions(+), 181 deletions(-)
diff --git a/plugins/check_ssh.c b/plugins/check_ssh.c
index 8e29fa9..9f805db 100644
--- a/plugins/check_ssh.c
+++ b/plugins/check_ssh.c
@@ -1,32 +1,32 @@
/*****************************************************************************
-*
-* Monitoring check_ssh plugin
-*
-* License: GPL
-* Copyright (c) 2000-2024 Monitoring Plugins Development Team
-*
-* Description:
-*
-* This file contains the check_ssh plugin
-*
-* Try to connect to an SSH server at specified server and port
-*
-*
-* This program is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program. If not, see <http://www.gnu.org/licenses/>.
-*
-*
-*****************************************************************************/
+ *
+ * Monitoring check_ssh plugin
+ *
+ * License: GPL
+ * Copyright (c) 2000-2024 Monitoring Plugins Development Team
+ *
+ * Description:
+ *
+ * This file contains the check_ssh plugin
+ *
+ * Try to connect to an SSH server at specified server and port
+ *
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ *****************************************************************************/
const char *progname = "check_ssh";
const char *copyright = "2000-2024";
@@ -37,11 +37,11 @@ const char *email = "devel at monitoring-plugins.org";
#include "utils.h"
#ifndef MSG_DONTWAIT
-#define MSG_DONTWAIT 0
+# define MSG_DONTWAIT 0
#endif
-#define SSH_DFL_PORT 22
-#define BUFF_SZ 256
+#define SSH_DFL_PORT 22
+#define BUFF_SZ 256
int port = -1;
char *server_name = NULL;
@@ -49,96 +49,87 @@ char *remote_version = NULL;
char *remote_protocol = NULL;
bool verbose = false;
-int process_arguments (int, char **);
-int validate_arguments (void);
-void print_help (void);
-void print_usage (void);
+int process_arguments(int, char **);
+int validate_arguments(void);
+void print_help(void);
+void print_usage(void);
-int ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol);
+int ssh_connect(char *haddr, int hport, char *remote_version, char *remote_protocol);
-
-int
-main (int argc, char **argv)
-{
+int main(int argc, char **argv) {
int result = STATE_UNKNOWN;
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
/* Parse extra opts if any */
- argv=np_extra_opts (&argc, argv, progname);
+ argv = np_extra_opts(&argc, argv, progname);
- if (process_arguments (argc, argv) == ERROR)
- usage4 (_("Could not parse arguments"));
+ if (process_arguments(argc, argv) == ERROR)
+ usage4(_("Could not parse arguments"));
/* initialize alarm signal handling */
- signal (SIGALRM, socket_timeout_alarm_handler);
+ signal(SIGALRM, socket_timeout_alarm_handler);
- alarm (socket_timeout);
+ alarm(socket_timeout);
/* ssh_connect exits if error is found */
- result = ssh_connect (server_name, port, remote_version, remote_protocol);
+ result = ssh_connect(server_name, port, remote_version, remote_protocol);
- alarm (0);
+ alarm(0);
return (result);
}
-
-
/* process command-line arguments */
-int
-process_arguments (int argc, char **argv)
-{
+int process_arguments(int argc, char **argv) {
int c;
int option = 0;
- static struct option longopts[] = {
- {"help", no_argument, 0, 'h'},
- {"version", no_argument, 0, 'V'},
- {"host", required_argument, 0, 'H'}, /* backward compatibility */
- {"hostname", required_argument, 0, 'H'},
- {"port", required_argument, 0, 'p'},
- {"use-ipv4", no_argument, 0, '4'},
- {"use-ipv6", no_argument, 0, '6'},
- {"timeout", required_argument, 0, 't'},
- {"verbose", no_argument, 0, 'v'},
- {"remote-version", required_argument, 0, 'r'},
- {"remote-protocol", required_argument, 0, 'P'},
- {0, 0, 0, 0}
- };
+ static struct option longopts[] = {{"help", no_argument, 0, 'h'},
+ {"version", no_argument, 0, 'V'},
+ {"host", required_argument, 0, 'H'}, /* backward compatibility */
+ {"hostname", required_argument, 0, 'H'},
+ {"port", required_argument, 0, 'p'},
+ {"use-ipv4", no_argument, 0, '4'},
+ {"use-ipv6", no_argument, 0, '6'},
+ {"timeout", required_argument, 0, 't'},
+ {"verbose", no_argument, 0, 'v'},
+ {"remote-version", required_argument, 0, 'r'},
+ {"remote-protocol", required_argument, 0, 'P'},
+ {0, 0, 0, 0}};
if (argc < 2)
return ERROR;
for (c = 1; c < argc; c++)
- if (strcmp ("-to", argv[c]) == 0)
- strcpy (argv[c], "-t");
+ if (strcmp("-to", argv[c]) == 0)
+ strcpy(argv[c], "-t");
while (1) {
- c = getopt_long (argc, argv, "+Vhv46t:r:H:p:P:", longopts, &option);
+ c = getopt_long(argc, argv, "+Vhv46t:r:H:p:P:", longopts, &option);
if (c == -1 || c == EOF)
break;
switch (c) {
- case '?': /* help */
- usage5 ();
- case 'V': /* version */
- print_revision (progname, NP_VERSION);
- exit (STATE_UNKNOWN);
- case 'h': /* help */
- print_help ();
- exit (STATE_UNKNOWN);
- case 'v': /* verbose */
+ case '?': /* help */
+ usage5();
+ case 'V': /* version */
+ print_revision(progname, NP_VERSION);
+ exit(STATE_UNKNOWN);
+ case 'h': /* help */
+ print_help();
+ exit(STATE_UNKNOWN);
+ case 'v': /* verbose */
verbose = true;
break;
- case 't': /* timeout period */
- if (!is_integer (optarg))
- usage2 (_("Timeout interval must be a positive integer"), optarg);
+ case 't': /* timeout period */
+ if (!is_integer(optarg))
+ usage2(_("Timeout interval must be a positive integer"), optarg);
else
- socket_timeout = atoi (optarg);
+ socket_timeout = atoi(optarg);
break;
case '4':
address_family = AF_INET;
@@ -147,71 +138,63 @@ process_arguments (int argc, char **argv)
#ifdef USE_IPV6
address_family = AF_INET6;
#else
- usage4 (_("IPv6 support not available"));
+ usage4(_("IPv6 support not available"));
#endif
break;
- case 'r': /* remote version */
+ case 'r': /* remote version */
remote_version = optarg;
break;
- case 'P': /* remote version */
+ case 'P': /* remote version */
remote_protocol = optarg;
break;
- case 'H': /* host */
- if (!is_host (optarg))
- usage2 (_("Invalid hostname/address"), optarg);
+ case 'H': /* host */
+ if (!is_host(optarg))
+ usage2(_("Invalid hostname/address"), optarg);
server_name = optarg;
break;
- case 'p': /* port */
- if (is_intpos (optarg)) {
- port = atoi (optarg);
- }
- else {
- usage2 (_("Port number must be a positive integer"), optarg);
+ case 'p': /* port */
+ if (is_intpos(optarg)) {
+ port = atoi(optarg);
+ } else {
+ usage2(_("Port number must be a positive integer"), optarg);
}
}
}
c = optind;
if (server_name == NULL && c < argc) {
- if (is_host (argv[c])) {
+ if (is_host(argv[c])) {
server_name = argv[c++];
}
}
if (port == -1 && c < argc) {
- if (is_intpos (argv[c])) {
- port = atoi (argv[c++]);
- }
- else {
- print_usage ();
- exit (STATE_UNKNOWN);
+ if (is_intpos(argv[c])) {
+ port = atoi(argv[c++]);
+ } else {
+ print_usage();
+ exit(STATE_UNKNOWN);
}
}
- return validate_arguments ();
+ return validate_arguments();
}
-int
-validate_arguments (void)
-{
+int validate_arguments(void) {
if (server_name == NULL)
return ERROR;
- if (port == -1) /* funky, but allows -p to override stray integer in args */
+ if (port == -1) /* funky, but allows -p to override stray integer in args */
port = SSH_DFL_PORT;
return OK;
}
-
/************************************************************************
-*
-* Try to connect to SSH server at specified server and port
-*
-*-----------------------------------------------------------------------*/
-
+ *
+ * Try to connect to SSH server at specified server and port
+ *
+ *-----------------------------------------------------------------------*/
-int
-ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol)
-{
+int ssh_connect(char *haddr, int hport, char *remote_version, char *remote_protocol) {
int sd;
int result;
int len = 0;
@@ -225,41 +208,41 @@ ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol
gettimeofday(&tv, NULL);
- result = my_tcp_connect (haddr, hport, &sd);
+ result = my_tcp_connect(haddr, hport, &sd);
if (result != STATE_OK)
return result;
- char *output = (char *) calloc (BUFF_SZ + 1, sizeof(char));
+ char *output = (char *)calloc(BUFF_SZ + 1, sizeof(char));
ssize_t byte_offset = 0;
- while ((version_control_string == NULL) && (recv_ret = recv(sd, output+byte_offset, BUFF_SZ - byte_offset, 0) > 0)) {
+ while ((version_control_string == NULL) && (recv_ret = recv(sd, output + byte_offset, BUFF_SZ - byte_offset, 0) > 0)) {
if (strchr(output, '\n')) { /* we've got at least one full line, start parsing*/
byte_offset = 0;
char *index = NULL;
- while ((index = strchr(output+byte_offset, '\n')) != NULL) {
+ while ((index = strchr(output + byte_offset, '\n')) != NULL) {
/*Partition the buffer so that this line is a separate string,
* by replacing the newline with NUL*/
output[(index - output)] = '\0';
len = strlen(output + byte_offset);
- if ((len >= 4) && (strncmp (output+byte_offset, "SSH-", 4) == 0)) {
+ if ((len >= 4) && (strncmp(output + byte_offset, "SSH-", 4) == 0)) {
/*if the string starts with SSH-, this _should_ be a valid version control string*/
- version_control_string = output+byte_offset;
- break;
+ version_control_string = output + byte_offset;
+ break;
}
/*the start of the next line (if one exists) will be after the current one (+ NUL)*/
byte_offset += (len + 1);
}
- if(version_control_string == NULL) {
+ if (version_control_string == NULL) {
/* move unconsumed data to beginning of buffer, null rest */
- memmove((void *)output, (void *)output+byte_offset+1, BUFF_SZ - len+1);
- memset(output+byte_offset+1, 0, BUFF_SZ-byte_offset+1);
+ memmove((void *)output, (void *)output + byte_offset + 1, BUFF_SZ - len + 1);
+ memset(output + byte_offset + 1, 0, BUFF_SZ - byte_offset + 1);
/*start reading from end of current line chunk on next recv*/
byte_offset = strlen(output);
@@ -285,9 +268,9 @@ ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol
* SSH-protoversion-softwareversion SP comments CR LF"
* - RFC 4253:4.2
*/
- strip (version_control_string);
+ strip(version_control_string);
if (verbose)
- printf ("%s\n", version_control_string);
+ printf("%s\n", version_control_string);
ssh_proto = version_control_string + 4;
/*
@@ -306,7 +289,7 @@ ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol
* "1.x" (e.g., "1.5" or "1.3")."
* - RFC 4253:5
*/
- ssh_server = ssh_proto + strspn (ssh_proto, "0123456789.") + 1; /* (+1 for the '-' separating protoversion from softwareversion) */
+ ssh_server = ssh_proto + strspn(ssh_proto, "0123456789.") + 1; /* (+1 for the '-' separating protoversion from softwareversion) */
/* If there's a space in the version string, whatever's after the space is a comment
* (which is NOT part of the server name/version)*/
@@ -316,86 +299,71 @@ ssh_connect (char *haddr, int hport, char *remote_version, char *remote_protocol
}
if (strlen(ssh_proto) == 0 || strlen(ssh_server) == 0) {
printf(_("SSH CRITICAL - Invalid protocol version control string %s\n"), version_control_string);
- exit (STATE_CRITICAL);
+ exit(STATE_CRITICAL);
}
- ssh_proto[strspn (ssh_proto, "0123456789. ")] = 0;
+ ssh_proto[strspn(ssh_proto, "0123456789. ")] = 0;
- xasprintf (&buffer, "SSH-%s-check_ssh_%s\r\n", ssh_proto, rev_no);
- send (sd, buffer, strlen (buffer), MSG_DONTWAIT);
+ xasprintf(&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);
+ printf("%s\n", buffer);
if (remote_version && strcmp(remote_version, ssh_server)) {
- printf
- (_("SSH CRITICAL - %s (protocol %s) version mismatch, expected '%s'\n"),
- ssh_server, ssh_proto, remote_version);
+ printf(_("SSH CRITICAL - %s (protocol %s) version mismatch, expected '%s'\n"), ssh_server, ssh_proto, remote_version);
close(sd);
- exit (STATE_CRITICAL);
+ exit(STATE_CRITICAL);
}
double elapsed_time = (double)deltime(tv) / 1.0e6;
if (remote_protocol && strcmp(remote_protocol, ssh_proto)) {
- printf
- (_("SSH CRITICAL - %s (protocol %s) protocol version mismatch, expected '%s' | %s\n"),
- ssh_server, ssh_proto, remote_protocol, fperfdata("time", elapsed_time, "s",
- false, 0, false, 0, true, 0, true, (int)socket_timeout));
+ printf(_("SSH CRITICAL - %s (protocol %s) protocol version mismatch, expected '%s' | %s\n"), ssh_server, ssh_proto, remote_protocol,
+ fperfdata("time", elapsed_time, "s", false, 0, false, 0, true, 0, true, (int)socket_timeout));
close(sd);
- exit (STATE_CRITICAL);
+ exit(STATE_CRITICAL);
}
- printf
- (_("SSH OK - %s (protocol %s) | %s\n"),
- ssh_server, ssh_proto, fperfdata("time", elapsed_time, "s",
- false, 0, false, 0, true, 0, true, (int)socket_timeout));
+ printf(_("SSH OK - %s (protocol %s) | %s\n"), ssh_server, ssh_proto,
+ fperfdata("time", elapsed_time, "s", false, 0, false, 0, true, 0, true, (int)socket_timeout));
close(sd);
- exit (STATE_OK);
+ exit(STATE_OK);
}
-
-
-void
-print_help (void)
-{
+void print_help(void) {
char *myport;
- xasprintf (&myport, "%d", SSH_DFL_PORT);
+ xasprintf(&myport, "%d", SSH_DFL_PORT);
- print_revision (progname, NP_VERSION);
+ print_revision(progname, NP_VERSION);
- printf ("Copyright (c) 1999 Remi Paulmier <remi at sinfomic.fr>\n");
- printf (COPYRIGHT, copyright, email);
+ printf("Copyright (c) 1999 Remi Paulmier <remi at sinfomic.fr>\n");
+ printf(COPYRIGHT, copyright, email);
- printf ("%s\n", _("Try to connect to an SSH server at specified server and port"));
+ printf("%s\n", _("Try to connect to an SSH server at specified server and port"));
- printf ("\n\n");
+ printf("\n\n");
- print_usage ();
+ print_usage();
- printf (UT_HELP_VRSN);
- printf (UT_EXTRA_OPTS);
+ printf(UT_HELP_VRSN);
+ printf(UT_EXTRA_OPTS);
- printf (UT_HOST_PORT, 'p', myport);
+ printf(UT_HOST_PORT, 'p', myport);
- printf (UT_IPv46);
+ printf(UT_IPv46);
- printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+ printf(UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
- printf (" %s\n", "-r, --remote-version=STRING");
- printf (" %s\n", _("Alert if string doesn't match expected server version (ex: OpenSSH_3.9p1)"));
+ printf(" %s\n", "-r, --remote-version=STRING");
+ printf(" %s\n", _("Alert if string doesn't match expected server version (ex: OpenSSH_3.9p1)"));
- printf (" %s\n", "-P, --remote-protocol=STRING");
- printf (" %s\n", _("Alert if protocol doesn't match expected protocol version (ex: 2.0)"));
+ printf(" %s\n", "-P, --remote-protocol=STRING");
+ printf(" %s\n", _("Alert if protocol doesn't match expected protocol version (ex: 2.0)"));
- printf (UT_VERBOSE);
+ printf(UT_VERBOSE);
- printf (UT_SUPPORT);
+ printf(UT_SUPPORT);
}
-
-
-void
-print_usage (void)
-{
- printf ("%s\n", _("Usage:"));
- printf ("%s [-4|-6] [-t <timeout>] [-r <remote version>] [-p <port>] <host>\n", progname);
+void print_usage(void) {
+ printf("%s\n", _("Usage:"));
+ printf("%s [-4|-6] [-t <timeout>] [-r <remote version>] [-p <port>] <host>\n", progname);
}
-
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