Record Case Detail

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

 pwd: /out/package
ppid: 4048
   1: WRITELN echo 321 >> 1.txt
   2: WRITELN echo 123 >> 1.txt
   3: WRITELN cat 1.txt
   4: WRITELN ls
   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 $ =================================================================
==4049==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60c0000000b8 at pc 0x000000499c0c bp 0x7ffe22a601b0 sp 0x7ffe22a5f960
READ of size 102 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 0x7fbd0015cb96  (/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 0x7fbd001bab8b  (/lib/x86_64-linux-gnu/libc.so.6+0x7fb8b)

SUMMARY: AddressSanitizer: he

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

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JOJ Answer