License the exim-derived test material as GPL-2.0-or-later · jcollie.dev/zig-smtp@5c9ce65

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README.md

··· 251 251 validation, dot-stuffing); the same dialogue is asserted byte-for-byte 252 252 as a unit test in `Server.zig`. 253 253 254 + The library is MIT-licensed; the small amount of test-only material adapted 255 + from exim's test suite (the torture script and the gauntlet unit test's 256 + dialogue) is GPL-2.0-or-later, marked with SPDX snippet tags and REUSE.toml 257 + annotations. 258 + 254 259 Note: Zig 0.16.0's fuzz *driver* is broken out of the box (its bundled 255 260 test runner fails to compile in fuzz mode, and the coverage server panics 256 261 on a test binary with no fuzz tests); both are fixed on Zig master. Until

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REUSE.toml

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··· 8 8 SPDX-FileCopyrightText = "© 2026 Jeffrey C. Ollie <jeff@ocjtech.us>" 9 9 SPDX-License-Identifier = "MIT" 10 10 11 + # The dialogue is adapted from exim's test suite (GPL-2.0-or-later); 12 + # the reply expectations are ours. 11 13 [[annotations]] 12 14 path = "test/protocol-torture.script" 13 - SPDX-FileCopyrightText = "© 2026 Jeffrey C. Ollie <jeff@ocjtech.us>" 14 - SPDX-License-Identifier = "MIT" 15 + SPDX-FileCopyrightText = [ 16 + "© The Exim Maintainers", 17 + "© University of Cambridge", 18 + "© 2026 Jeffrey C. Ollie <jeff@ocjtech.us>", 19 + ] 20 + SPDX-License-Identifier = "GPL-2.0-or-later"

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LICENSES/GPL-2.0-or-later.txt

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··· 1 + GNU GENERAL PUBLIC LICENSE 2 + Version 2, June 1991 3 + 4 + Copyright (C) 1989, 1991 Free Software Foundation, Inc. 5 + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA 6 + 7 + Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 8 + 9 + Preamble 10 + 11 + The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. 12 + 13 + When we speak of free software, we are referring to freedom, not price. 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See the GNU General Public License for more details. 104 + 105 + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Also add information on how to contact you by electronic and paper mail. 106 + 107 + If the program is interactive, make it output a short notice like this when it starts in an interactive mode: 108 + 109 + Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. 110 + 111 + The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. 112 + 113 + You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: 114 + 115 + Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. 116 + 117 + signature of Ty Coon, 1 April 1989 Ty Coon, President of Vice

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src/Server.zig

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··· 1136 1136 try std.testing.expectEqual(Decision.accept, handler.vtable.message.?(null, envelope, "")); 1137 1137 } 1138 1138 1139 + // SPDX-SnippetBegin 1140 + // SPDX-SnippetCopyrightText: © The Exim Maintainers 1141 + // SPDX-SnippetCopyrightText: © University of Cambridge 1142 + // SPDX-SnippetCopyrightText: © 2026 Jeffrey C. Ollie <jeff@ocjtech.us> 1143 + // SPDX-License-Identifier: GPL-2.0-or-later 1144 + // 1145 + // The command dialogue and message lines below are adapted from exim's 1146 + // test suite (test/scripts/0000-Basic); the reply expectations are ours. 1139 1147 test "protocol gauntlet adapted from exim's test suite" { 1140 1148 // Command sequences and dot-stuffing cases distilled from exim's 1141 1149 // test/scripts/0000-Basic (notably 0019's SMTP syntax-error dialogue ··· 1220 1228 try std.testing.expectEqual(@as(?u64, 100), h.declared_size); 1221 1229 try std.testing.expectEqual(Envelope.Body.eight_bit_mime, h.body); 1222 1230 } 1231 + // SPDX-SnippetEnd

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