recv() returns zero when the peer closes the TCP connection cleanly. The SMTP response path only treated negative returns as errors, so EOF could leave stale or empty response data to be checked as if a server reply had arrived.
Return ERROR on zero-length receives at each SMTP response point and keep the SPDX copyright header within the project line length limit.
Signed-off-by: Old-Ding <ai.neo.ae86@gmail.com>
fix
error: Relative file path does not match actual file
error: Long line found
error: Operator/assignment must be preceded with whitespace
error: Missing blank line after comment
The sendmail example hasn't been used in years. I am not sure it was ever debugged. It is so old that it still expects hand editted .config files. As a result, all of the configuration settings were missing from the Kconfig file.
This commit adds the missing apps/examples/sendmail configuration settings so that the example at least builds. I cannot test it because I have no smtp server that I am willing to spam.
This configuration also adds missing configuration dependencies and runs the C files in apps/examples/sendmail and apps/netutils/smtp through nxstyle.
This commit resolves an issue reported by surya prakash rased in the Google group: https://groups.google.com/forum/#!topic/nuttx/idr-M164Y24
1.Remove void cast for function because many place ignore the returned value witout cast
2.Replace void cast for variable with UNUSED macro
Change-Id: Ie644129a563244a6397036789c4c3ea83c4e9b09
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
