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emile_image: add error handling code for ifd_offset value 

Signed-off-by: JEONGHYUN YUN <jh0506.yun@samsung.com>
This commit is contained in:
Jaeun Choi 2017-04-06 15:34:53 +09:00
parent c3372a5c7a
commit 53e31eeede
1 changed files with 8 additions and 0 deletions
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8
src/lib/emile/emile_image.c
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@ -933,6 +933,10 @@ _get_orientation_app1(const unsigned char *map,
{
// get 4byte by little endian
ifd_offset += (*(buf + 14) << 24) + (*(buf + 15) << 16) + (*(buf + 16) << 8) + (*(buf + 17));
if (ifd_offset > fsize)
return EINA_FALSE;
byte_align = EXIF_BYTE_ALIGN_MM;
num_directory = ((*(buf + ifd_offset) << 8) + *(buf + ifd_offset + 1));
orientation[0] = 0x01;
@ -942,6 +946,10 @@ _get_orientation_app1(const unsigned char *map,
{
// get 4byte by big endian
ifd_offset += (*(buf + 14)) + (*(buf + 15) << 8) + (*(buf + 16) << 16) + (*(buf + 17) << 24);
if (ifd_offset > fsize)
return EINA_FALSE;
byte_align = EXIF_BYTE_ALIGN_II;
num_directory = ((*(buf + ifd_offset + 1) << 8) + *(buf + ifd_offset));
orientation[0] = 0x12;