write_tsdb: enable TCP keepalive on network socket

[collectd.git] / src / multimeter.c

diff --git a/src/multimeter.c b/src/multimeter.c
index 775eb57..02fe1ad 100644 (file)
--- a/src/multimeter.c
+++ b/src/multimeter.c
@@ -23,6 +23,7 @@
  **/
 
 #include "collectd.h"
+
 #include "common.h"
 #include "plugin.h"
 
@@ -148,22 +149,21 @@ static int multimeter_read_value(double *value)
 
 static int multimeter_init (void)
 {
-       int i;
        char device[] = "/dev/ttyS ";
 
-       for (i = 0; i < 10; i++)
+       for (int i = 0; i < 10; i++)
        {
-               device[strlen(device)-1] = i + '0'; 
+               device[strlen(device)-1] = i + '0';
 
-               if ((fd = open(device, O_RDWR | O_NOCTTY)) > 0)
+               if ((fd = open(device, O_RDWR | O_NOCTTY)) != -1)
                {
-                       struct termios tios;
+                       struct termios tios = { 0 };
                        int rts = TIOCM_RTS;
                        double value;
 
                        tios.c_cflag = B1200 | CS7 | CSTOPB | CREAD | CLOCAL;
                        tios.c_iflag = IGNBRK | IGNPAR;
-                       tios.c_oflag = 0;
+                       tios.c_oflag = 0;
                        tios.c_lflag = 0;
                        tios.c_cc[VTIME] = 3;
                        tios.c_cc[VMIN]  = LINE_LENGTH;
@@ -171,7 +171,7 @@ static int multimeter_init (void)
                        tcflush(fd, TCIFLUSH);
                        tcsetattr(fd, TCSANOW, &tios);
                        ioctl(fd, TIOCMBIC, &rts);
-                       
+
                        if (multimeter_read_value (&value) < -1)
                        {
                                close (fd);