eet: add to basic eet_image EAPIs checking on NULL

@fix

Summary: to avoid segfaults with NULL raw data, add checking on NULL to basic eet_image APIS

Reviewers: NikaWhite, cedric, myoungwoon, jpeg

Reviewed By: jpeg

Subscribers: t.naumenko, jpeg

Differential Revision: https://phab.enlightenment.org/D4386

Change-Id: I8a1bdf9df1864e271c33a71361da57fb3ed84374
Signed-off-by: Artem Popov <artem.popov@samsung.com>

diff --git a/src/lib/eet/eet_image.c b/src/lib/eet/eet_image.c
index d41ca2b..852ad2e 100644 (file)
--- a/src/lib/eet/eet_image.c
+++ b/src/lib/eet/eet_image.c
@@ -1585,6 +1585,9 @@ eet_data_image_encode_cipher(const void  *data,
    unsigned int ciphered_sz = 0;
    int size = 0;
 
+   if (!data)
+     return NULL;
+
    switch (lossy)
      {
       case EET_IMAGE_LOSSLESS:
@@ -1696,6 +1699,9 @@ eet_data_image_header_advance_decode_cipher(const void   *data,
    unsigned int deciphered_sz = 0;
    int r = 0;
 
+   if (!data)
+     return NULL;
+
    if (cipher_key)
      {
         if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),
@@ -2091,6 +2097,9 @@ eet_data_image_decode_cipher(const void   *data,
    void *deciphered_d = NULL;
    unsigned int deciphered_sz = 0;
 
+   if (!data)
+     return NULL;
+
    if (cipher_key)
      {
         if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),
@@ -2179,6 +2188,9 @@ eet_data_image_decode_to_cspace_surface_cipher(const void   *data,
    void *deciphered_d = NULL;
    unsigned int deciphered_sz = 0;
 
+   if (!data)
+     return NULL;
+
    if (cipher_key)
      {
         if (!eet_decipher(data, size, cipher_key, strlen(cipher_key),