Record Case Detail

Notes

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

Stderr

 pwd: /out/package
ppid: 4400
   1: WRITELN "echo" "123
   2: WRITELN |" |
   3: WRITELN cat > 1.txt
   4: WRITELN cat 1.txt
   5: WRITELN ls
exit: 1

Hints

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

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

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

Your Answer

mumsh $ "echo": command not found
mumsh $ ": command not found
mumsh $ mumsh $ =================================================================
==4401==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c0000002f8 at pc 0x000000499a2c bp 0x7ffe7f0f00d0 sp 0x7ffe7f0ef880
READ of size 121 at 0x60c0000002f8 thread T0
    #0 0x499a2b  (/out/package/mumsh_memory_check+0x499a2b)
    #1 0x51557b  (/out/package/mumsh_memory_check+0x51557b)
    #2 0x51dec4  (/out/package/mumsh_memory_check+0x51dec4)
    #3 0x7f3fb1724b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #4 0x41cf89  (/out/package/mumsh_memory_check+0x41cf89)

0x60c0000002f8 is located 0 bytes to the right of 120-byte region [0x60c000000280,0x60c0000002f8)
allocated by thread T0 here:
    #0 0x4dce40  (/out/package/mumsh_memory_check+0x4dce40)
    #1 0x7f3fb1782b8b  (/lib/x86_64-linux-gnu/libc.so.6+0x7fb8b)
    #2 0xffffffff  (<unknown module>)

SUMMARY: AddressSanitizer: heap-buffer-overflow (/out/package/mumsh_memory_check+0x499a2b) 
Shadow b

JOJ Answer

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