Hello @ccoffing,

Nice rewrite. Now that you've rewritten this for size and removed printf, why not remove all of stdio (~1500 bytes) as well? Suggest perhaps using the following style defines (modified from elkscmd/file_utils/futils.h as outstr or similar), and just call write instead using STDOUT_FILENO:

#define errmsg(str) write(STDERR_FILENO, str, sizeof(str) - 1)
#define errstr(str) write(STDERR_FILENO, str, strlen(str))

Would you like to do something like that or commit this as is?

Thank you!

Oh yeah, good catch. I forget sometimes that puts is not lightweight...