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-rw-r--r--src/nix-daemon/nix-daemon.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/nix-daemon/nix-daemon.cc b/src/nix-daemon/nix-daemon.cc
index 890bffa19aa5..c3b94614a879 100644
--- a/src/nix-daemon/nix-daemon.cc
+++ b/src/nix-daemon/nix-daemon.cc
@@ -37,13 +37,13 @@ using namespace nix;
 static ssize_t splice(int fd_in, void *off_in, int fd_out, void *off_out, size_t len, unsigned int flags)
 {
     /* We ignore most parameters, we just have them for conformance with the linux syscall */
-    char buf[8192];
-    auto read_count = read(fd_in, buf, sizeof(buf));
+    std::vector<char> buf(8192);
+    auto read_count = read(fd_in, buf.data(), buf.size());
     if (read_count == -1)
         return read_count;
     auto write_count = decltype(read_count)(0);
     while (write_count < read_count) {
-        auto res = write(fd_out, buf + write_count, read_count - write_count);
+        auto res = write(fd_out, buf.data() + write_count, read_count - write_count);
         if (res == -1)
             return res;
         write_count += res;