Previously cmd socket worked only with DVB input. That was ok
since there were no commands (well except SHUTDOWN and RELOAD)
that were useful without DVB input. Now that lots of commands
were added to deal with input stream, this patch allows cmd
socket to be used with any input (ASI, DVB and UDP). DVB only
commands are ignored when there is no DVB input used.
Signed-off-by: Georgi Chorbadzhiyski <gf@unixsol.org>

Commit 5967be13 introduced ability to change provider and service
name per output. Unfortunately the condition where SDT have more
than one descriptor and service name descriptor is not the first
one was not tested even if there were code to handle multiple
descriptors. With patch even if desc 0x48 is not the first one
everything works as expected.

Globally set service provider can be changed for each
output by using /srvprovider= output option.
Signed-off-by: Georgi Chorbadzhiyski <gf@unixsol.org>

This patch adds two new output options that allow service
name and provider name to be changed per output. The new
output options are /srvname=XXX and /srvprovider=YYY.

If option is not set the values from input stream are used.
Signed-off-by: Georgi Chorbadzhiyski <gf@unixsol.org>

With this patch the DVBlast compilation output is not
cluttered with the full command lines and makes it easier to
spot warnings and errors. If you want to see what commands are
executed run make V=1 or export V=1 and then make.

The new "clean" output will look like this:

make all
  CC      dvblast.c
  CC      util.c
  CC      dvb.c
  CC      udp.c
  CC      asi.c
  CC      demux.c
  CC      output.c
  CC      en50221.c
  CC      comm.c
  CC      mrtg-cnt.c
  LINK    dvblast
  CC      dvblastctl.c
  LINK    dvblastctl

make install
  INSTALL dvblast.1 -> /usr/local/share/man/man1
  INSTALL dvblast dvblastctl dvblast_mmi.sh -> /usr/local/bin

make uninstall
  RM      /usr/local/bin/dvblast
  RM      /usr/local/bin/dvblastctl
  RM      /usr/local/bin/dvblast_mmi.sh
  RM      /usr/local/share/man/man1/dvblast.1

make clean
  CLEAN   dvblast dvblastctl dvblast.o util.o dvb.o udp.o asi.o demux.o output.o en50221.o comm.o mrtg-cnt.o util.o dvblastctl.o

make archive
  ARCHIVE dvblast-2.0.0.tar.bz2
  -rw-r--r-- 1 gf users 108030 Sep  9 12:12 dvblast-2.0.0.tar.bz2
Signed-off-by: Georgi Chorbadzhiyski <gf@unixsol.org>

Use PRINT_TYPE macro in preparation for XML output support
for fe_status command.

By default dvblast uses program name (argv[0]) as syslog
ident. This is fine but a little hard to find. So in order
to be easier to choose syslog ident add -g/--logger-ident
parameters to resolve this. If one of the parameters is not
set argv[0] is used instead.

get_pmt command return pmt for chosen service_id or no_data
if the service do not exist.

With this patch when dvblast exits, all allocated memory
is released. This makes dvblast valgrind clean.

This variable is used to signal configuration reload by
SIGHUP signal and over command socket so the new name is
better suited.

mrtgInit() is not checking if filename parameter is NULL so
when dvblast is run without -Z option that sets mrtg file
the following error is seen in valgrind:

 Syscall param open(filename) points to unaddressable byte(s)
    at 0x412798E: __open_nocancel (in /lib/libc-2.13.so)
    by 0x40BCA33: __fopen_internal (in /lib/libc-2.13.so)
    by 0x40BCA9B: fopen@@GLIBC_2.1 (in /lib/libc-2.13.so)
    by 0x8062841: mrtgInit (mrtg-cnt.c:167)
    by 0x4073DB5: (below main) (in /lib/libc-2.13.so)

This patch fixes compilation warnings related to ssize_t when
dvblast is compiled on 64 bit machine. The fixed warnings are:

comm.c: In function "comm_Read":
comm.c:86:18: warning: format "%d" expects type "int", but argument 3 has type "ssize_t"
comm.c:168:14: warning: format "%d" expects type "int", but argument 5 has type "ssize_t"

dvblastctl.c: In function "main":
dvblastctl.c:248:18: warning: format "%d" expects type "int", but argument 3 has type "ssize_t"