Record Case Detail

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

 pwd: /out/package
ppid: 50222
   1: WRITELN echo 123
   2: WRITELN 
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 $ 123
mumsh $ mumsh.c:152:24: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:137:33: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior mumsh.c:152:24 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==50223==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x0000004b204b bp 0x7ffdf84f56d0 sp 0x7ffdf84f4e40 T0)
==50223==The signal is caused by a READ memory access.
==50223==Hint: address points to the zero page.
    #0 0x4b204a  (/out/package/mumsh_memory_check+0x4b204a)
    #1 0x516aa8  (/out/package/mumsh_memory_check+0x516aa8)
    #2 0x7f5282badb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cb79  (/out/package/mumsh_memory_check+0x41cb79)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/mumsh_memory_check+0x4b204a) 
==50223==ABORTING

mumsh $ 123
mumsh $ mumsh $ exit

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JOJ Answer