The meaning of debug_level was shift by one during the last debug overhaul.
(The new one is more rational, previously debug_level=1 didn't do anything.)
Goal is to test renegotiation better: we need more than one exchange for
server-initiated renego to work reliably (the previous hack for this wouldn't
work with non-blocking I/O and probably not with DTLS either).
Also check message termination in a semi-realistic way.
Will be useful for:
- detecting termination of messages by other means than connection close
- DTLS (can be seen as a special case of the above: datagram-oriented)
Found with Clang's `scan-build` tool.
When get_timer() is called with `reset` set to 1, the value of
t->start.tv_sec is used as a rvalue without being initialized first.
This is relatively harmless because the result of get_timer() is not
used by the callers when called in "reset mode". However, scan-build
prints a warning.
Silence the warning by only calculating the delta on non-reset runs,
returning zero otherwise.
Found with Clang's `scan-build` tool.
The value written to `hi` is never used, resulting in a warning. Remove
the dead store to get rid of the warning.
Found with Clang's `scan-build` tool.
ssl_mail_client.c does a dead store by assigning the return value of
base64_encode() to `len` and not using the value. This causes
scan-build to issue a warning.
Instead of storing the return value into `len`, store it to `ret`, since
base64_encode() returns a status code, not a length. Also check if the
return value is nonzero and print an error; this silences scan-build.
Found with Clang's `scan-build` tool.
The store to `ret` is not used, it's overwritten shortly after. Assign
the value of 1 at declaration time instead to silence scan-build.
Found with Clang's `scan-build` tool.
load_file() allocates memory to a char** parameter. It then tries to fread() a
file, and if that fails, frees the memory and returns to caller. However, the
char** is not reset to NULL, which causes a double-free error when the caller
later passes it to free().
