[libgudev/wip/hadess/fix-sysfs-attr: 3/4] gudev: Fix 'Y' in _sysfs_attr_as_boolean_uncached()

[Bastien Nocera <hadess src gnome org>]

commit 70db9f988b23020b353f1936b024a6fc49afe6c5
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Mar 16 12:02:13 2021 +0100

    gudev: Fix 'Y' in _sysfs_attr_as_boolean_uncached()
    
    The changes made haphazardly in e186dac0 and 31e31d52 were documented
    for _sysfs_attr_as_boolean_uncached() but not implemented.

 gudev/gudevdevice.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)
---
diff --git a/gudev/gudevdevice.c b/gudev/gudevdevice.c
index b38bd4d..ec792da 100644
--- a/gudev/gudevdevice.c
+++ b/gudev/gudevdevice.c
@@ -1171,18 +1171,26 @@ g_udev_device_get_sysfs_attr_as_boolean_uncached (GUdevDevice  *device,
                                                   const gchar  *name)
 {
   gboolean result;
-  const gchar *s;
+  const gchar *raw;
+  g_autofree char *truncated = NULL;
+  const char *s;
 
   g_return_val_if_fail (G_UDEV_IS_DEVICE (device), FALSE);
   g_return_val_if_fail (name != NULL, FALSE);
 
   result = FALSE;
-  s = g_udev_device_get_sysfs_attr_uncached (device, name);
-  if (s == NULL)
+  raw = g_udev_device_get_sysfs_attr_uncached (device, name);
+  if (raw == NULL)
     goto out;
 
-  if (strcmp (s, "1") == 0 || g_ascii_strcasecmp (s, "true") == 0)
+  truncated = truncate_at_linefeed (raw);
+  s = truncated ?: raw;
+  if (strcmp (s, "1") == 0 ||
+      g_ascii_strcasecmp (s, "true") == 0 ||
+      g_ascii_strcasecmp (s, "y") == 0) {
     result = TRUE;
+  }
+
  out:
   return result;
 }