Record Case Detail

This function is in beta test. Please help improve it in the issues here.

 pwd: /out/package
ppid: 19850
   1: WRITELN >
   2: WRITELN 1.txt echo 123
   3: WRITELN cat 1.txt
   4: WRITELN ls
   5: WRITELN exit

Your answer may be identical to the JOJ answer in the first several lines.

However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.

Please double check your code to solve this problem and try again.

mumsh $ =================================================================
==19851==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffc080478ff at pc 0x000000518ac0 bp 0x7ffc07e46cb0 sp 0x7ffc07e46ca8
READ of size 1 at 0x7ffc080478ff thread T0
    #0 0x518abf  (/out/package/mumsh_memory_check+0x518abf)
    #1 0x5164dc  (/out/package/mumsh_memory_check+0x5164dc)
    #2 0x7fd07d768b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41d4b9  (/out/package/mumsh_memory_check+0x41d4b9)

Address 0x7ffc080478ff is located in stack of thread T0 at offset 2097695 in frame
    #0 0x51588f  (/out/package/mumsh_memory_check+0x51588f)

  This frame has 3 object(s):
    [32, 1048608) 'commands'
    [1048864, 2097440) 'commands_f'
    [2097696, 2098720) 'argv' <== Memory access at offset 2097695 underflows this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-bu

mumsh $ > mumsh $ 123
mumsh $ 1.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit

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JOJ Answer