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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> |
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| CMakeLists.txt | ||
| Kconfig | ||
| Make.defs | ||
| Makefile | ||
| smtp.c | ||