Fix some warn_unused_result warnings

While building on gcc 9.3.0

2 files changed, 19 insertions, 3 deletions

diff --git a/common/flatpak-utils.c b/common/flatpak-utils.c
index 86dc4e1d..8231cf11 100644
--- a/common/flatpak-utils.c
+++ b/common/flatpak-utils.c
@@ -8060,13 +8060,25 @@ flatpak_get_cursor_pos (int * row, int *col)
 void
 flatpak_hide_cursor (void)
 {
-  write (STDOUT_FILENO, FLATPAK_ANSI_HIDE_CURSOR, strlen (FLATPAK_ANSI_HIDE_CURSOR));
+  const size_t flatpak_hide_cursor_len = strlen (FLATPAK_ANSI_HIDE_CURSOR);
+  const ssize_t write_ret = write (STDOUT_FILENO, FLATPAK_ANSI_HIDE_CURSOR,
+                                   flatpak_hide_cursor_len);
+
+  if (write_ret < 0)
+    g_warning ("write() failed: %zd = write(STDOUT_FILENO, FLATPAK_ANSI_HIDE_CURSOR, %zu)",
+               write_ret, flatpak_hide_cursor_len);
 }
 
 void
 flatpak_show_cursor (void)
 {
-  write (STDOUT_FILENO, FLATPAK_ANSI_SHOW_CURSOR, strlen (FLATPAK_ANSI_SHOW_CURSOR));
+  const size_t flatpak_show_cursor_len = strlen (FLATPAK_ANSI_SHOW_CURSOR);
+  const ssize_t write_ret = write (STDOUT_FILENO, FLATPAK_ANSI_SHOW_CURSOR,
+                                   flatpak_show_cursor_len);
+
+  if (write_ret < 0)
+    g_warning ("write() failed: %zd = write(STDOUT_FILENO, FLATPAK_ANSI_SHOW_CURSOR, %zu)",
+               write_ret, flatpak_show_cursor_len);
 }
 
 void
diff --git a/revokefs/demo.c b/revokefs/demo.c
index 6608b52f..6685314f 100644
--- a/revokefs/demo.c
+++ b/revokefs/demo.c
@@ -74,7 +74,11 @@ main (int argc, char *argv[])
     }
 
   g_print ("Started revokefs, press enter to revoke");
-  fgets(buf, sizeof(buf), stdin);
+  if (!fgets(buf, sizeof(buf), stdin))
+    {
+      perror ("fgets");
+    }
+
   g_print ("Revoking write permissions");
   shutdown (sockets[1], SHUT_RDWR);
 }