Record Case Detail

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

 pwd: /out/package
ppid: 4211
   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

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.

mumsh $ =================================================================
==4212==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c0000000b8 at pc 0x000000499c0c bp 0x7ffd86b5aa10 sp 0x7ffd86b5a1c0
READ of size 103 at 0x60c0000000b8 thread T0
    #0 0x499c0b  (/out/package/mumsh_memory_check+0x499c0b)
    #1 0x528df5  (/out/package/mumsh_memory_check+0x528df5)
    #2 0x526274  (/out/package/mumsh_memory_check+0x526274)
    #3 0x525e5c  (/out/package/mumsh_memory_check+0x525e5c)
    #4 0x523966  (/out/package/mumsh_memory_check+0x523966)
    #5 0x51685c  (/out/package/mumsh_memory_check+0x51685c)
    #6 0x7f5c19b89b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #7 0x41d169  (/out/package/mumsh_memory_check+0x41d169)

0x60c0000000b8 is located 0 bytes to the right of 120-byte region [0x60c000000040,0x60c0000000b8)
allocated by thread T0 here:
    #0 0x4dd020  (/out/package/mumsh_memory_check+0x4dd020)
    #1 0x7f5c19be7b8b  (/lib/x86_64-linux-gnu/libc.so.6+0x7fb8b)

SUMMARY: AddressSanitizer: he

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

Notes

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JOJ Answer