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correctly parse strings with null bytes and throw error

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This commit is contained in:
Philipp Otterbein 2025-01-04 16:14:06 +01:00
parent 442a2623e4
commit a44e9dd1ea
7 changed files with 22 additions and 13 deletions
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8
src/libexpr/eval.cc
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@ -3185,12 +3185,16 @@ std::ostream & operator << (std::ostream & str, const ExternalValueBase & v) {
return v.print(str);
}
void forceNoNullByte(std::string_view s)
void forceNoNullByte(std::string_view s, std::function<Pos()> pos)
{
if (s.find('\0') != s.npos) {
using namespace std::string_view_literals;
auto str = replaceStrings(std::string(s), "\0"sv, "␀"sv);
throw Error("input string '%s' cannot be represented as Nix string because it contains null bytes", str);
Error error("input string '%s' cannot be represented as Nix string because it contains null bytes", str);
if (pos) {
error.atPos(pos());
}
throw error;
}
}