From 1ef7f1ab8cc340afdea5a62ea8bf2a1e5ec1268a Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Tue, 25 Jan 2022 20:42:29 +0300
Subject: [PATCH] Skip non-regular files in nncp-file

---
 doc/cmd/nncp-file.texi | 17 ++++++++++-------
 doc/news.ru.texi       |  4 ++++
 doc/news.texi          |  4 ++++
 src/tx.go              |  4 ++--
 4 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/doc/cmd/nncp-file.texi b/doc/cmd/nncp-file.texi
index 0a80a4c..802e817 100644
--- a/doc/cmd/nncp-file.texi
+++ b/doc/cmd/nncp-file.texi
@@ -18,13 +18,16 @@ encrypted packet.
 If @file{SRC} equals to @file{-}, to data is read from @code{stdin}.
 
 If @file{SRC} points to directory, then
-@url{https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_01, pax archive}
-will be created on the fly with directory contents and destination
-filename @file{.tar} appended. It @strong{won't} contain any entities
-metainformation, but modification time with the names. UID/GID are set
-to zero. Directories have 777 permissions, files have 666, for being
-friendly with @command{umask}. Also each entity will have comment like
-@verb{|Autogenerated by NNCP version X.Y.Z built with goXXX|}.
+@url{https://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_01,
+pax archive} will be created on the fly with directory contents and
+destination filename @file{.tar} appended. It @strong{won't} contain any
+entities metainformation, except for modification time with the names.
+UID/GID are set to zero. Directories have 777 permissions, files have
+666, for being friendly with @command{umask}. Everything except
+directories and regulars files is skipped. Also each entity will have
+comment like @verb{|Autogenerated by NNCP version X.Y.Z built with goXXX|}.
+For more precise metainformation and various file objects storage use
+external @command{tar} command piped in.
 
 If @option{-chunked} is specified, then source file will be split
 @ref{Chunked, on chunks}. @option{INT} is the desired chunk size in
diff --git a/doc/news.ru.texi b/doc/news.ru.texi
index 1a65bfa..61db762 100644
--- a/doc/news.ru.texi
+++ b/doc/news.ru.texi
@@ -15,6 +15,10 @@
 У @command{nncp-call} команды появился @option{-mcd-wait} аргумент,
 позволяющий дожидаться multicast сообщения об адресе ноды.
 
+@item
+@command{nncp-file} команда пропускает всё что не является регулярным
+файлом или директорией во время создания pax-архива.
+
 @end itemize
 
 @node Релиз 8.3.0
diff --git a/doc/news.texi b/doc/news.texi
index 6922d4b..fbb1d46 100644
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -16,6 +16,10 @@ configuration options) are now regular expressions. By default
 @command{nncp-call} command has @option{-mcd-wait} option to wait for
 multicast packet about node's address.
 
+@item
+@command{nncp-file} command skips everything that is neither regular
+file nor directory during pax-archive creation.
+
 @end itemize
 
 @node Release 8_3_0
diff --git a/src/tx.go b/src/tx.go
index b0377ed..77db592 100644
--- a/src/tx.go
+++ b/src/tx.go
@@ -330,11 +330,11 @@ func prepareTxFile(srcPath string) (
 		if err != nil {
 			return err
 		}
-		if info.IsDir() {
+		if info.Mode().IsDir() {
 			// directory header, PAX record header+contents
 			srcSize += TarBlockSize + 2*TarBlockSize
 			dirs = append(dirs, einfo{path: path, modTime: info.ModTime()})
-		} else {
+		} else if info.Mode().IsRegular() {
 			// file header, PAX record header+contents, file content
 			srcSize += TarBlockSize + 2*TarBlockSize + info.Size()
 			if n := info.Size() % TarBlockSize; n != 0 {
-- 
2.44.0