Merge pull request #15 from tomboehmer/issue9

Fixes #9 - determine the size of the status buffer based on the number of blocks

diff --combined dwmblocks.c
index 8668f042d77bea8510570564fe82f78de5bc5463,3af799f751cedaf21970f46ac2456bcb05f0e484..21c14825f9ddc595d49481701899a79e1d732b8c
--- 1/dwmblocks.c
--- 2/dwmblocks.c
+++ b/dwmblocks.c
@@@ -6,6 -6,7 +6,7 @@@
  #include<X11/Xlib.h>
  #define LENGTH(X)               (sizeof(X) / sizeof (X[0]))
  #define CMDLENGTH             50
+ #define STATUSLENGTH (LENGTH(blocks) * CMDLENGTH + 1)
  
  typedef struct {
        char* icon;
@@@ -13,7 -14,6 +14,7 @@@
        unsigned int interval;
        unsigned int signal;
  } Block;
 +void dummysighandler(int num);
  void sighandler(int num);
  void getcmds(int time);
  #ifndef __OpenBSD__
@@@ -33,7 -33,7 +34,7 @@@ static Display *dpy
  static int screen;
  static Window root;
  static char statusbar[LENGTH(blocks)][CMDLENGTH] = {0};
- static char statusstr[2][256];
+ static char statusstr[2][STATUSLENGTH];
  static int statusContinue = 1;
  static void (*writestatus) () = setroot;
  
@@@ -59,7 -59,7 +60,7 @@@ void getcmds(int time
  {
        const Block* current;
        for(int i = 0; i < LENGTH(blocks); i++)
 -      {       
 +      {
                current = blocks + i;
                if ((current->interval != 0 && time % current->interval == 0) || time == -1)
                        getcmd(current,statusbar[i]);
@@@ -80,12 -80,8 +81,12 @@@ void getsigcmds(int signal
  
  void setupsignals()
  {
 +    /* initialize all real time signals with dummy handler */
 +    for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
 +        signal(i, dummysighandler);
 +
        for(int i = 0; i < LENGTH(blocks); i++)
 -      {         
 +      {
                if (blocks[i].signal > 0)
                        signal(SIGRTMIN+blocks[i].signal, sighandler);
        }
@@@ -142,14 -138,6 +143,14 @@@ void statusloop(
        }
  }
  
 +#ifndef __OpenBSD__
 +/* this signal handler should do nothing */
 +void dummysighandler(int signum)
 +{
 +    return;
 +}
 +#endif
 +
  #ifndef __OpenBSD__
  void sighandler(int signum)
  {
@@@ -167,7 -155,7 +168,7 @@@ void termhandler(int signum
  int main(int argc, char** argv)
  {
        for(int i = 0; i < argc; i++)
 -      {       
 +      {
                if (!strcmp("-d",argv[i]))
                        delim = argv[++i][0];
                else if(!strcmp("-p",argv[i]))