Record Case Detail

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

 pwd: /out/package
ppid: 4468
   1: WRITELN "echo" "123" "|" | cat > 1.txt
   2: WRITELN cat 1.txt
   3: WRITELN ls
   4: 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 $ /in/Calls.c:155:22: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/unistd.h:582:14: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/Calls.c:155:22 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==4472==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f632b4224b0 bp 0x7ffc016888d0 sp 0x7ffc01688840 T0)
==4472==The signal is caused by a READ memory access.
==4472==Hint: address points to the zero page.
    #0 0x7f632b4224af  (/lib/x86_64-linux-gnu/libc.so.6+0xe54af)
    #1 0x5198b5  (/out/package/mumsh_memory_check+0x5198b5)
    #2 0x51a3e2  (/out/package/mumsh_memory_check+0x51a3e2)
    #3 0x51a6c6  (/out/package/mumsh_memory_check+0x51a6c6)
    #4 0x51635e  (/out/package/mumsh_memory_check+0x51635e)
    #5 0x7f632b35eb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #6 0x41d499  (/out/package/mumsh_memory_check+0x41d499)

Addr

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

Notes

Stderr

Hints

Your Answer

JOJ Answer