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-rw-r--r--nix/libutil/util.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/nix/libutil/util.hh b/nix/libutil/util.hh
index ce2d77c19a..a70981877b 100644
--- a/nix/libutil/util.hh
+++ b/nix/libutil/util.hh
@@ -257,6 +257,11 @@ void killUser(uid_t uid);
string runProgram(Path program, bool searchPath = false,
const Strings & args = Strings());
+/* Convert a list of strings to a null-terminated vector of char
+ *'s. The result must not be accessed beyond the lifetime of the
+ list of strings. */
+std::vector<const char *> stringsToCharPtrs(const Strings & ss);
+
/* Close all file descriptors except stdin, stdout, stderr, and those
listed in the given set. Good practice in child processes. */
void closeMostFDs(const set<int> & exceptions);