ref: cbfcf3bf786e1dd5ccfbc97bff65fbc1efaa3903
dir: /src/libc/string/strerror.c/
#include <errno.h>
#include <string.h>
#undef strerror
char *
strerror(int errnum)
{
if (errnum > EUNKNOWN || errnum <= 0)
errnum = EUNKNOWN;
return _sys_errlist[errnum];
}