Renamed `host' and `port' to `global_host' and `global_port' to distinguish between...

Improved the config function: Set `global_host' to NULL if not configured and copy the value otherwise. Don't use a static variable within the config routine and reference to it..

diff --git a/src/apcups.c b/src/apcups.c
index 4f5f760..cec39df 100644 (file)
--- a/src/apcups.c
+++ b/src/apcups.c
@@ -61,8 +61,8 @@
 #define MODULE_NAME "apcups"
 
 /* Default values for contacting daemon */
-static char *host = "localhost";
-static int   port = NISPORT;
+static char *global_host = NULL;
+static int   global_port = NISPORT;
 
 /* 
  * The following are only if not compiled to test the module with its own main.
@@ -141,7 +141,7 @@ struct apc_detail_s
  * It is possible that the total bytes require in several
  * read requests
  */
-static int read_nbytes(int fd, char *ptr, int nbytes)
+static int read_nbytes (int fd, char *ptr, int nbytes)
 {
        int nleft, nread;
 
@@ -149,7 +149,7 @@ static int read_nbytes(int fd, char *ptr, int nbytes)
 
        while (nleft > 0) {
                do {
-                       nread = read(fd, ptr, nleft);
+                       nread = read (fd, ptr, nleft);
                } while (nread == -1 && (errno == EINTR || errno == EAGAIN));
 
                if (nread <= 0) {
@@ -167,7 +167,7 @@ static int read_nbytes(int fd, char *ptr, int nbytes)
  * Write nbytes to the network.
  * It may require several writes.
  */
-static int write_nbytes(int fd, void *buf, int buflen)
+static int write_nbytes (int fd, void *buf, int buflen)
 {
        int nleft;
        int nwritten;
@@ -178,7 +178,7 @@ static int write_nbytes(int fd, void *buf, int buflen)
        nleft = buflen;
        while (nleft > 0)
        {
-               nwritten = write(fd, ptr, nleft);
+               nwritten = write (fd, ptr, nleft);
 
                if (nwritten <= 0)
                {
@@ -265,7 +265,7 @@ static int net_open (char *host, char *service, int port)
        }
 
        return (sd);
-} /* int net_open(char *host, char *service, int port) */
+} /* int net_open (char *host, char *service, int port) */
 
 /* 
  * Receive a message from the other end. Each message consists of
@@ -288,7 +288,7 @@ static int net_recv (int sockfd, char *buf, int buflen)
        if (nbytes != sizeof (short))
                return (-2);
 
-       pktsiz = ntohs(pktsiz);
+       pktsiz = ntohs (pktsiz);
        if (pktsiz > buflen)
        {
                DBG ("record length too large");
@@ -323,8 +323,8 @@ static int net_send (int sockfd, char *buff, int len)
        /* send short containing size of data packet */
        packet_size = htons ((short) len);
 
-       rc = write_nbytes(sockfd, &packet_size, sizeof (packet_size));
-       if (rc != sizeof(packet_size))
+       rc = write_nbytes (sockfd, &packet_size, sizeof (packet_size));
+       if (rc != sizeof (packet_size))
                return (-1);
 
        /* send data packet */
@@ -336,7 +336,7 @@ static int net_send (int sockfd, char *buff, int len)
 }
 
 /* Get and print status from apcupsd NIS server */
-static int do_pthreads_status (char *host, int port,
+static int apc_query_server (char *host, int port,
                struct apc_detail_s *apcups_detail)
 {
        int     sockfd;
@@ -414,45 +414,46 @@ static int do_pthreads_status (char *host, int port,
 }
 
 #ifdef APCMAIN
-int main(int argc, char **argv)
+int main (int argc, char **argv)
 {
        /* we are not really going to use this */
        struct apc_detail_s apcups_detail;
 
-       if (!*host || strcmp(host, "0.0.0.0") == 0)
+       if (!*host || strcmp (host, "0.0.0.0") == 0)
                host = "localhost";
 
-       do_pthreads_status(host, port, &apcups_detail);
+       apc_query_server (global_host, global_port, &apcups_detail);
 
        return 0;
 }
 #else
 static int apcups_config (char *key, char *value)
 {
-  static char lhost[126];
-  
-  if (strcasecmp (key, "host") == 0)
-    {
-      lhost[0] = '\0';
-      strcpy(lhost,key);
-      host = lhost;
-    }
-  else if (strcasecmp (key, "Port") == 0)
-    {
-      int port_tmp = atoi (value);
-      if(port_tmp < 1 || port_tmp > 65535) {
-       syslog (LOG_WARNING, "apcups: `port' failed: %s",
-               value);
-       return (1);
-      } else {
-       port = port_tmp;
-      }
-    }
-  else
-    {
-      return (-1);
-    }
-  return(0);
+       if (strcasecmp (key, "host") == 0)
+       {
+               if (global_host != NULL)
+               {
+                       free (global_host);
+                       global_host = NULL;
+               }
+               if ((global_host = strdup (value)) == NULL)
+                       return (1);
+       }
+       else if (strcasecmp (key, "Port") == 0)
+       {
+               int port_tmp = atoi (value);
+               if (port_tmp < 1 || port_tmp > 65535)
+               {
+                       syslog (LOG_WARNING, "apcups plugin: Invalid port: %i", port_tmp);
+                       return (1);
+               }
+               global_port = port_tmp;
+       }
+       else
+       {
+               return (-1);
+       }
+       return (0);
 }
 
 static void apcups_init (void)
@@ -535,7 +536,7 @@ static void apcups_read (void)
        struct apc_detail_s apcups_detail;
        int status;
 
-       if (host == NULL)
+       if (global_host == NULL)
                return;
        
        apcups_detail.linev    =   -1.0;
@@ -547,7 +548,7 @@ static void apcups_read (void)
        apcups_detail.itemp    = -300.0;
        apcups_detail.linefreq =   -1.0;
   
-       status = do_pthreads_status(host, port, &apcups_detail);
+       status = apc_query_server (global_host, global_port, &apcups_detail);
  
        /*
         * if we did not connect then do not bother submitting