Record Case Detail

Notes

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Stderr

 pwd: /out/package
ppid: 5165
   1: WRITELN echo 123 > 1.txt
   2: WRITELN echo abc > > > >
   3: WRITELN echo abc > < 1.txt
   4: WRITELN echo abc > | grep abc
   5: WRITELN exit
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 $ =================================================================
==5166==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x619000000480 at pc 0x0000005189e9 bp 0x7ffd68dcd750 sp 0x7ffd68dcd748
READ of size 1 at 0x619000000480 thread T0
    #0 0x5189e8  (/out/package/mumsh_memory_check+0x5189e8)
    #1 0x7fafb4a80b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #2 0x41d1a9  (/out/package/mumsh_memory_check+0x41d1a9)

0x619000000480 is located 0 bytes to the right of 1024-byte region [0x619000000080,0x619000000480)
allocated by thread T0 here:
    #0 0x4dd288  (/out/package/mumsh_memory_check+0x4dd288)
    #1 0x517ad0  (/out/package/mumsh_memory_check+0x517ad0)
    #2 0x7fafb4a80b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: heap-buffer-overflow (/out/package/mumsh_memory_check+0x5189e8) 
Shadow bytes around the buggy address:
  0x0c327fff8040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c327fff8050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c3

JOJ Answer

mumsh $ mumsh $ syntax error near unexpected token `>'
mumsh $ syntax error near unexpected token `<'
mumsh $ syntax error near unexpected token `|'
mumsh $ exit