fix compilation on later glibc/gcc versions with stricter checks

[project/uci.git] / history.c

diff --git a/history.c b/history.c
index a31dbfa..e3e19de 100644 (file)
--- a/history.c
+++ b/history.c
@@ -250,7 +250,10 @@ static int uci_load_history(struct uci_context *ctx, struct uci_package *p, bool
        changes = uci_load_history_file(ctx, p, filename, &f, flush);
        if (flush && f && (changes > 0)) {
                rewind(f);
-               ftruncate(fileno(f), 0);
+               if (ftruncate(fileno(f), 0) < 0) {
+                       uci_close_stream(f);
+                       UCI_THROW(ctx, UCI_ERR_IO);
+               }
        }
        if (filename)
                free(filename);
@@ -308,7 +311,8 @@ static void uci_filter_history(struct uci_context *ctx, const char *name, const
 
        /* rebuild the history file */
        rewind(f);
-       ftruncate(fileno(f), 0);
+       if (ftruncate(fileno(f), 0) < 0)
+               UCI_THROW(ctx, UCI_ERR_IO);
        uci_foreach_element_safe(&list, tmp, e) {
                fprintf(f, "%s\n", e->name);
                uci_free_element(e);