libfprint: Use g_memdup2 everywhere

It's just safer when available.

libfprint/drivers/elan.c

@@ -357,7 +357,7 @@ elan_cmd_cb (FpiUsbTransfer *transfer, FpDevice *dev,
   if (transfer->endpoint & FPI_USB_ENDPOINT_IN)
     {
       /* just finished receiving */
-      self->last_read = g_memdup (transfer->buffer, transfer->actual_length);
+      self->last_read = g_memdup2 (transfer->buffer, transfer->actual_length);
       elan_cmd_done (ssm);
     }
   else

libfprint/drivers/elanmoc/elanmoc.c

@@ -509,7 +509,7 @@ create_print_from_response (FpiDeviceElanmoc *self,
       return NULL;
     }
 
-  userid = g_memdup (&buffer_in[5], userid_len);
+  userid = g_memdup2 (&buffer_in[5], userid_len);
   userid_safe = g_strndup ((const char *) &buffer_in[5], userid_len);
   print = fp_print_new (FP_DEVICE (self));
   uid = g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, userid, userid_len, 1);

libfprint/drivers/uru4000.c

@@ -551,7 +551,7 @@ image_transfer_cb (FpiUsbTransfer *transfer, FpDevice *dev,
     }
   else
     {
-      self->img_data = g_memdup (transfer->buffer, sizeof (struct uru4k_image));
+      self->img_data = g_memdup2 (transfer->buffer, sizeof (struct uru4k_image));
       self->img_data_actual_length = transfer->actual_length;
       fpi_ssm_next_state (ssm);
     }

libfprint/drivers/vfs301_proto.c

@@ -432,7 +432,7 @@ img_process_data (int first_block, FpDeviceVfs301 *dev, const guint8 *buf, int l
     usb_send (dev, data, len, NULL); \
   }
 
-#define RAW_DATA(x) g_memdup (x, sizeof (x)), sizeof (x)
+#define RAW_DATA(x) g_memdup2 (x, sizeof (x)), sizeof (x)
 
 #define IS_VFS301_FP_SEQ_START(b) ((b[0] == 0x01) && (b[1] == 0xfe))
 

libfprint/fp-image.c

@@ -20,6 +20,7 @@
 
 #define FP_COMPONENT "image"
 
+#include "fpi-compat.h"
 #include "fpi-image.h"
 #include "fpi-log.h"
 
@@ -295,7 +296,7 @@ fp_image_detect_minutiae_thread_func (GTask        *task,
 
   data->flags &= ~(FPI_IMAGE_H_FLIPPED | FPI_IMAGE_V_FLIPPED | FPI_IMAGE_COLORS_INVERTED);
 
-  lfsparms = g_memdup (&g_lfsparms_V2, sizeof (LFSPARMS));
+  lfsparms = g_memdup2 (&g_lfsparms_V2, sizeof (LFSPARMS));
   lfsparms->remove_perimeter_pts = data->flags & FPI_IMAGE_PARTIAL ? TRUE : FALSE;
 
   timer = g_timer_new ();

libfprint/fpi-byte-reader.c

@@ -1181,7 +1181,7 @@ fpi_byte_reader_dup_string_utf##bits (FpiByteReader * reader, type ** str) \
     *str = NULL; \
     return FALSE; \
   } \
-  *str = g_memdup (reader->data + reader->byte, size); \
+  *str = g_memdup2 (reader->data + reader->byte, size); \
   reader->byte += size; \
   return TRUE; \
 }

libfprint/fpi-byte-reader.h

@@ -22,6 +22,7 @@
 #pragma once
 
 #include <glib.h>
+#include "fpi-compat.h"
 #include "fpi-byte-utils.h"
 
 G_BEGIN_DECLS
@@ -360,7 +361,7 @@ static inline guint8 *
 fpi_byte_reader_dup_data_unchecked (FpiByteReader * reader, guint size)
 {
   gconstpointer data = fpi_byte_reader_get_data_unchecked (reader, size);
-  return (guint8 *) g_memdup (data, size);
+  return (guint8 *) g_memdup2 (data, size);
 }
 
 /* Unchecked variants that should not be used */

libfprint/fpi-byte-writer.c

@@ -211,7 +211,7 @@ fpi_byte_writer_reset_and_get_data (FpiByteWriter * writer)
 
   data = (guint8 *) writer->parent.data;
   if (!writer->owned)
-    data = g_memdup (data, writer->parent.size);
+    data = g_memdup2 (data, writer->parent.size);
   writer->parent.data = NULL;
   fpi_byte_writer_reset (writer);
 

libfprint/fpi-print.c

@@ -50,7 +50,7 @@ fpi_print_add_print (FpPrint *print, FpPrint *add)
   g_return_if_fail (add->type == FPI_PRINT_NBIS);
 
   g_assert (add->prints->len == 1);
-  g_ptr_array_add (print->prints, g_memdup (add->prints->pdata[0], sizeof (struct xyt_struct)));
+  g_ptr_array_add (print->prints, g_memdup2 (add->prints->pdata[0], sizeof (struct xyt_struct)));
 }
 
 /**