Record Case Detail

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

 pwd: /out/package
ppid: 91525
   1: WRITELN echo 123 > 1.txt
   2: WRITELN echo 321 > 2.txt
   3: WRITELN cat < 1.txt | cat | cat | cat | cat | cat | cat | cat | cat | cat | cat | cat | cat | cat | cat >> 2.txt
   4: WRITELN cat 1.txt
   5: WRITELN cat 2.txt
   6: WRITELN ls
   7: 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 $ /in/main.c:111:13: runtime error: index 1024 out of bounds for type 'char [1024]'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/main.c:111:13 in 
=================================================================
==91526==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffea5c35960 at pc 0x000000517104 bp 0x7ffea5c35530 sp 0x7ffea5c35528
WRITE of size 1 at 0x7ffea5c35960 thread T0
    #0 0x517103  (/out/package/mumsh_memory_check+0x517103)
    #1 0x522303  (/out/package/mumsh_memory_check+0x522303)
    #2 0x7efdaf550b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41d039  (/out/package/mumsh_memory_check+0x41d039)

Address 0x7ffea5c35960 is located in stack of thread T0 at offset 1056 in frame
    #0 0x51682f  (/out/package/mumsh_memory_check+0x51682f)

  This frame has 2 object(s):
    [32, 1056) 'command' <== Memory access at offset 1056 overflows this variable
    [1184, 1192) 'fd424'
HINT: this may be a false positive if your program uses some custom stack unwind me

mumsh $ mumsh $ mumsh $ mumsh $ 123
mumsh $ 321
123
mumsh $ 1.txt
2.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit

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