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https://github.com/monitoring-plugins/monitoring-plugins.git
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check_dhcp: Declare internal variables static
This commit is contained in:
RincewindsHat
parent
a0e2266c75
commit
cd4d59fbd4
1 changed files with 62 additions and 62 deletions
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@ -105,7 +105,7 @@ static int put_ctrl(int, int, int);
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static int put_both(int, int, int, int);
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static int dl_open(const char *, int, int *);
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static int dl_bind(int, int, u_char *);
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long mac_addr_dlpi(const char *, int, u_char *);
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static long mac_addr_dlpi(const char *, int, u_char *);
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#endif // __sun__ || __solaris__ || __hpux
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@ -186,60 +186,60 @@ typedef struct requested_server_struct {
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#define ETHERNET_HARDWARE_ADDRESS 1 /* used in htype field of dhcp packet */
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#define ETHERNET_HARDWARE_ADDRESS_LENGTH 6 /* length of Ethernet hardware addresses */
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bool unicast = false; /* unicast mode: mimic a DHCP relay */
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bool exclusive = false; /* exclusive mode aka "rogue DHCP server detection" */
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struct in_addr my_ip; /* our address (required for relay) */
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struct in_addr dhcp_ip; /* server to query (if in unicast mode) */
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unsigned char client_hardware_address[MAX_DHCP_CHADDR_LENGTH] = "";
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unsigned char *user_specified_mac = NULL;
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static bool unicast = false; /* unicast mode: mimic a DHCP relay */
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static bool exclusive = false; /* exclusive mode aka "rogue DHCP server detection" */
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static struct in_addr my_ip; /* our address (required for relay) */
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static struct in_addr dhcp_ip; /* server to query (if in unicast mode) */
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static unsigned char client_hardware_address[MAX_DHCP_CHADDR_LENGTH] = "";
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static unsigned char *user_specified_mac = NULL;
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char network_interface_name[IFNAMSIZ] = "eth0";
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static char network_interface_name[IFNAMSIZ] = "eth0";
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uint32_t packet_xid = 0;
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static uint32_t packet_xid = 0;
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uint32_t dhcp_lease_time = 0;
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uint32_t dhcp_renewal_time = 0;
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uint32_t dhcp_rebinding_time = 0;
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static uint32_t dhcp_lease_time = 0;
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static uint32_t dhcp_renewal_time = 0;
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static uint32_t dhcp_rebinding_time = 0;
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int dhcpoffer_timeout = 2;
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static int dhcpoffer_timeout = 2;
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dhcp_offer *dhcp_offer_list = NULL;
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requested_server *requested_server_list = NULL;
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static dhcp_offer *dhcp_offer_list = NULL;
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static requested_server *requested_server_list = NULL;
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int valid_responses = 0; /* number of valid DHCPOFFERs we received */
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int requested_servers = 0;
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int requested_responses = 0;
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static int valid_responses = 0; /* number of valid DHCPOFFERs we received */
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static int requested_servers = 0;
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static int requested_responses = 0;
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bool request_specific_address = false;
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bool received_requested_address = false;
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int verbose = 0;
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struct in_addr requested_address;
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static bool request_specific_address = false;
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static bool received_requested_address = false;
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static int verbose = 0;
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static struct in_addr requested_address;
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int process_arguments(int, char **);
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int call_getopt(int, char **);
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int validate_arguments(int);
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static int process_arguments(int, char **);
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static int call_getopt(int, char **);
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static int validate_arguments(int);
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void print_usage(void);
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void print_help(void);
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static void print_help(void);
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void resolve_host(const char *in, struct in_addr *out);
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unsigned char *mac_aton(const char *);
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void print_hardware_address(const unsigned char *);
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int get_hardware_address(int, char *);
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int get_ip_address(int, char *);
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static void resolve_host(const char *in, struct in_addr *out);
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static unsigned char *mac_aton(const char *);
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static void print_hardware_address(const unsigned char *);
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static int get_hardware_address(int, char *);
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static int get_ip_address(int, char *);
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int send_dhcp_discover(int);
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int get_dhcp_offer(int);
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static int send_dhcp_discover(int);
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static int get_dhcp_offer(int);
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int get_results(void);
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static int get_results(void);
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int add_dhcp_offer(struct in_addr, dhcp_packet *);
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int free_dhcp_offer_list(void);
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int free_requested_server_list(void);
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static int add_dhcp_offer(struct in_addr, dhcp_packet *);
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static int free_dhcp_offer_list(void);
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static int free_requested_server_list(void);
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int create_dhcp_socket(void);
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int close_dhcp_socket(int);
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int send_dhcp_packet(void *, int, int, struct sockaddr_in *);
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int receive_dhcp_packet(void *, int, int, int, struct sockaddr_in *);
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static int create_dhcp_socket(void);
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static int close_dhcp_socket(int);
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static int send_dhcp_packet(void *, int, int, struct sockaddr_in *);
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static int receive_dhcp_packet(void *, int, int, int, struct sockaddr_in *);
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int main(int argc, char **argv) {
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int dhcp_socket;
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@ -288,7 +288,7 @@ int main(int argc, char **argv) {
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}
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/* determines hardware address on client machine */
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int get_hardware_address(int sock, char *interface_name) {
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static int get_hardware_address(int sock, char *interface_name) {
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#if defined(__linux__)
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struct ifreq ifr;
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@ -400,7 +400,7 @@ int get_hardware_address(int sock, char *interface_name) {
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}
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/* determines IP address of the client interface */
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int get_ip_address(int sock, char *interface_name) {
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static int get_ip_address(int sock, char *interface_name) {
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#if defined(SIOCGIFADDR)
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struct ifreq ifr;
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@ -426,7 +426,7 @@ int get_ip_address(int sock, char *interface_name) {
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}
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/* sends a DHCPDISCOVER broadcast message in an attempt to find DHCP servers */
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int send_dhcp_discover(int sock) {
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static int send_dhcp_discover(int sock) {
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dhcp_packet discover_packet;
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struct sockaddr_in sockaddr_broadcast;
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unsigned short opts;
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@ -515,7 +515,7 @@ int send_dhcp_discover(int sock) {
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}
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/* waits for a DHCPOFFER message from one or more DHCP servers */
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int get_dhcp_offer(int sock) {
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static int get_dhcp_offer(int sock) {
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dhcp_packet offer_packet;
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struct sockaddr_in source;
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struct sockaddr_in via;
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@ -617,7 +617,7 @@ int get_dhcp_offer(int sock) {
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}
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/* sends a DHCP packet */
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int send_dhcp_packet(void *buffer, int buffer_size, int sock, struct sockaddr_in *dest) {
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static int send_dhcp_packet(void *buffer, int buffer_size, int sock, struct sockaddr_in *dest) {
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int result;
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result = sendto(sock, (char *)buffer, buffer_size, 0, (struct sockaddr *)dest, sizeof(*dest));
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@ -632,7 +632,7 @@ int send_dhcp_packet(void *buffer, int buffer_size, int sock, struct sockaddr_in
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}
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/* receives a DHCP packet */
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int receive_dhcp_packet(void *buffer, int buffer_size, int sock, int timeout, struct sockaddr_in *address) {
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static int receive_dhcp_packet(void *buffer, int buffer_size, int sock, int timeout, struct sockaddr_in *address) {
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struct timeval tv;
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fd_set readfds;
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fd_set oobfds;
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@ -685,7 +685,7 @@ int receive_dhcp_packet(void *buffer, int buffer_size, int sock, int timeout, st
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}
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/* creates a socket for DHCP communication */
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int create_dhcp_socket(void) {
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static int create_dhcp_socket(void) {
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struct sockaddr_in myname;
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struct ifreq interface;
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int sock;
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@ -746,7 +746,7 @@ int create_dhcp_socket(void) {
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}
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/* closes DHCP socket */
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int close_dhcp_socket(int sock) {
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static int close_dhcp_socket(int sock) {
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close(sock);
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@ -754,7 +754,7 @@ int close_dhcp_socket(int sock) {
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}
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/* adds a requested server address to list in memory */
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int add_requested_server(struct in_addr server_address) {
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static int add_requested_server(struct in_addr server_address) {
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requested_server *new_server;
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new_server = (requested_server *)malloc(sizeof(requested_server));
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@ -776,7 +776,7 @@ int add_requested_server(struct in_addr server_address) {
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}
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/* adds a DHCP OFFER to list in memory */
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int add_dhcp_offer(struct in_addr source, dhcp_packet *offer_packet) {
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static int add_dhcp_offer(struct in_addr source, dhcp_packet *offer_packet) {
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dhcp_offer *new_offer;
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int x;
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unsigned option_type;
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@ -878,7 +878,7 @@ int add_dhcp_offer(struct in_addr source, dhcp_packet *offer_packet) {
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}
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/* frees memory allocated to DHCP OFFER list */
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int free_dhcp_offer_list(void) {
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static int free_dhcp_offer_list(void) {
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dhcp_offer *this_offer;
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dhcp_offer *next_offer;
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@ -891,7 +891,7 @@ int free_dhcp_offer_list(void) {
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}
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/* frees memory allocated to requested server list */
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int free_requested_server_list(void) {
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static int free_requested_server_list(void) {
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requested_server *this_server;
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requested_server *next_server;
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@ -904,7 +904,7 @@ int free_requested_server_list(void) {
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}
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/* gets state and plugin output to return */
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int get_results(void) {
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static int get_results(void) {
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dhcp_offer *temp_offer, *undesired_offer = NULL;
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requested_server *temp_server;
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int result;
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@ -1025,7 +1025,7 @@ int get_results(void) {
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}
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/* process command-line arguments */
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int process_arguments(int argc, char **argv) {
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static int process_arguments(int argc, char **argv) {
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if (argc < 1)
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return ERROR;
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@ -1033,7 +1033,7 @@ int process_arguments(int argc, char **argv) {
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return validate_arguments(argc);
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}
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int call_getopt(int argc, char **argv) {
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static int call_getopt(int argc, char **argv) {
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extern int optind;
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int option_index = 0;
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static struct option long_options[] = {{"serverip", required_argument, 0, 's'},
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@ -1125,7 +1125,7 @@ int call_getopt(int argc, char **argv) {
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return optind;
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}
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int validate_arguments(int argc) {
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static int validate_arguments(int argc) {
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if (argc - optind > 0)
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usage(_("Got unexpected non-option argument"));
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@ -1249,7 +1249,7 @@ static int dl_bind(int fd, int sap, u_char *addr) {
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*
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***********************************************************************/
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long mac_addr_dlpi(const char *dev, int unit, u_char *addr) {
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static long mac_addr_dlpi(const char *dev, int unit, u_char *addr) {
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int fd;
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u_char mac_addr[25];
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@ -1268,7 +1268,7 @@ long mac_addr_dlpi(const char *dev, int unit, u_char *addr) {
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#endif
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/* resolve host name or die (TODO: move this to netutils.c!) */
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void resolve_host(const char *in, struct in_addr *out) {
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static void resolve_host(const char *in, struct in_addr *out) {
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struct addrinfo hints, *ai;
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memset(&hints, 0, sizeof(hints));
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@ -1281,7 +1281,7 @@ void resolve_host(const char *in, struct in_addr *out) {
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}
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/* parse MAC address string, return 6 bytes (unterminated) or NULL */
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unsigned char *mac_aton(const char *string) {
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static unsigned char *mac_aton(const char *string) {
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static unsigned char result[6];
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char tmp[3];
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unsigned i, j;
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@ -1301,7 +1301,7 @@ unsigned char *mac_aton(const char *string) {
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return (j == 6) ? result : NULL;
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}
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void print_hardware_address(const unsigned char *address) {
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static void print_hardware_address(const unsigned char *address) {
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int i;
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printf(_("Hardware address: "));
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@ -1312,7 +1312,7 @@ void print_hardware_address(const unsigned char *address) {
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}
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/* print usage help */
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void print_help(void) {
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static void print_help(void) {
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print_revision(progname, NP_VERSION);
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