SIGHUP and Program Flow in a 6.2 Application

Martin McCormick martin at
Wed Mar 5 21:26:34 UTC 2008

	A SIGHUP signal to a running process needs a signal
handler like

signal( SIGHUP ,startlogging);

	What sort of end statement needs to be in the function
called to allow program execution to resume back in the main

	I had put a return; statement in the function and
noticed that things were wrong after the application stopped
catching the SIGHUP after the first call.

	A gdb trace shows that the signal causes a branch to the
code pointed to by the signal statement. The code runs and then
if it reaches the return; statement, the flow is lost and knows
not where to go next.

	Thank you.

Martin McCormick WB5AGZ  Stillwater, OK 
Systems Engineer
OSU Information Technology Department Network Operations Group

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