jpeg-utils: Add some asserts

Users are not really supposed to hit any of them, it would indicate
a programmer mistake otherwise.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/jpeg-utils.cpp b/src/jpeg-utils.cpp
index e714778..826b112 100644
--- a/src/jpeg-utils.cpp
+++ b/src/jpeg-utils.cpp
@@ -94,6 +94,7 @@ read_exif (const gchar *filename)
 {
   ExifData *data;
 
+  g_assert (filename != NULL);
   data = exif_data_new_empty ();
 
   try {
@@ -463,6 +464,9 @@ resize_image (const gchar *src, const gchar *dst,
   double source_aspect, target_aspect;
   gchar *description;
 
+  g_assert (src != NULL);
+  g_assert (dst != NULL);
+
   /*  Read an image.  */
   magick_wand = NewMagickWand();
   if (MagickReadImage (magick_wand, src) == MagickFalse) {
@@ -563,6 +567,8 @@ get_image_sizes (const gchar *img,
   *width = -1;
   *height = -1;
 
+  g_assert (img != NULL);
+
   /*  Read an image.  */
   magick_wand = NewMagickWand();
   if (autorotate)
@@ -726,6 +732,8 @@ modify_exif (const gchar *filename, ExifData *exif, gboolean strip_thumbnail, gb
   gboolean modified;
   gboolean res;
 
+  g_assert (filename != NULL);
+
   if (! strip_thumbnail && exif == NULL)
     return;