fix compilation on later glibc/gcc versions with stricter checks

[project/uci.git] / file.c

diff --git a/file.c b/file.c
index 1abe8ff..a58e392 100644 (file)
--- a/file.c
+++ b/file.c
@@ -454,7 +454,8 @@ void uci_file_commit(struct uci_context *ctx, struct uci_package **package, bool
        }
 
        rewind(f);
-       ftruncate(fileno(f), 0);
+       if (ftruncate(fileno(f), 0) < 0)
+               UCI_THROW(ctx, UCI_ERR_IO);
 
        uci_export(ctx, f, p, false);
        UCI_TRAP_RESTORE(ctx);