Keep a readme whole past a NUL byte

cgit takes filter output through a C string sink that stops at the
first NUL, so a readme holding one lost everything after it. Each NUL
now shows as U+FFFD, as a browser would show it.

1 file changed, 5 insertions, 6 deletions

diff --git a/tests/extensions/test-about-render.lua b/tests/extensions/test-about-render.luaindex 4d92882..c4b16a8 100644--- a/tests/extensions/test-about-render.lua+++ b/tests/extensions/test-about-render.lua@@ -48,12 +48,11 @@ out = render(nil, "no name at all") h.contains("a missing filename renders as plain text", out, 	"<pre class='plaintext'>no name at all</pre>") --- cgit's C sink stops at the first NUL byte, which the script documents, so--- the text past one is lost while the wrapper written separately survives.-out = render("README", "before\0after")-h.contains("text before a nul byte survives", out, "before")-h.excludes("text after a nul byte is dropped", out, "after")-h.contains("the wrapper written after the text survives", out, "</pre>")+-- cgit's C sink stops at the first NUL byte, so the script replaces each one+-- before anything is written, and the text past it survives.+out = render("README", "before\0after\0")+h.contains("a nul byte shows as a replacement character", out,+	"<pre class='plaintext'>before\239\191\189after\239\191\189</pre>")  out = h.run({ "README" }, { "two ", "writes" }) h.contains("writes are joined before rendering", out, "two writes")
diff --git a/tests/extensions/test-about-render.lua b/tests/extensions/test-about-render.lua
index 4d92882..c4b16a8 100644
--- a/tests/extensions/test-about-render.lua
+++ b/tests/extensions/test-about-render.lua
@@ -48,12 +48,11 @@ out = render(nil, "no name at all")
 h.contains("a missing filename renders as plain text", out,
 	"<pre class='plaintext'>no name at all</pre>")
 
--- cgit's C sink stops at the first NUL byte, which the script documents, so
--- the text past one is lost while the wrapper written separately survives.
-out = render("README", "before\0after")
-h.contains("text before a nul byte survives", out, "before")
-h.excludes("text after a nul byte is dropped", out, "after")
-h.contains("the wrapper written after the text survives", out, "</pre>")
+-- cgit's C sink stops at the first NUL byte, so the script replaces each one
+-- before anything is written, and the text past it survives.
+out = render("README", "before\0after\0")
+h.contains("a nul byte shows as a replacement character", out,
+	"<pre class='plaintext'>before\239\191\189after\239\191\189</pre>")
 
 out = h.run({ "README" }, { "two ", "writes" })
 h.contains("writes are joined before rendering", out, "two writes")