Several bugs of file descriptor leak in bcc

[yuxuan He]

Ubuntu version: 18.04
bcc version:0.16.17

I found several bugs in bcc , would you help me to check if these bugs are true?thanks for your patience.
============================================================================================================

step 1 :
  In file build/copt/copt.c(build is directory generated by configure) , function readinfile line 315 :
    Function fopen executes and stores the return value to fp

step 2 :
  In file build/copt/copt.c(build is directory generated by configure) , function readinfile line 315 :
    Select the false branch at this point (fp==null is false)

step 3 :
  In file build/copt/copt.c(build is directory generated by configure) , function readinfile line 320 :
    Select the false branch at this point (fp!=stdin is false) but did not close it

============================================================================================================

step 1 :
  In file build/copt/copt.c(build is directory generated by configure) , function writeoutf line 801 :
    Function fopen executes and stores the return value to fp

step 2 :
  In file build/copt/copt.c(build is directory generated by configure) , function writeoutf line 801 :
    Select the false branch at this point (fp==null is false)

step 3 :
  In file build/copt/copt.c(build is directory generated by configure) , function writeoutf line 805 :
    Select the true branch at this point (headstr!=null is true)

step 4 :
  In file build/copt/copt.c(build is directory generated by configure) , function writeoutf line 809 :
    Select the true branch at this point (lp!=null is true)
step 5 :
  In file build/copt/copt.c(build is directory generated by configure) , function writeoutf line 811 :
    Select the false branch at this point (fp!=stdout is false) but did not close it

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:

apport-collect 1941972

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.