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().
Found with Clang's `scan-build` tool.
The error value assigned to `ret` is not returned, meaning that the
selftest always succeeds. Ensure the error value is propagated back to
the caller.
It's not clear if, with SSL3, one should include send the two length bytes for
EncryptedPreMasterSecret or not, so require TLS to avoid interop issues.
