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Fix crash in scanimage when must_buffer is true 

Fixes https://gitlab.com/sane-project/backends/-/issues/408.
escl-fix-sleep-mode
James Ring 2020-12-26 13:55:54 -08:00
rodzic 5af7850ba6
commit b4be10c5a2
1 zmienionych plików z 11 dodań i 5 usunięć
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16
frontend/scanimage.c
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@ -73,6 +73,7 @@ typedef struct
int height;
int x;
int y;
int num_channels;
}
Image;
@ -1307,10 +1308,10 @@ advance (Image * image)
size_t old_size = 0, new_size;
if (image->data)
old_size = image->height * image->width;
old_size = image->height * image->width * image->num_channels;
image->height += STRIP_HEIGHT;
new_size = image->height * image->width;
new_size = image->height * image->width * image->num_channels;
if (image->data)
image->data = realloc (image->data, new_size);
@ -1334,7 +1335,7 @@ scan_it (FILE *ofp)
SANE_Byte min = 0xff, max = 0;
SANE_Parameters parm;
SANE_Status status;
Image image = { 0, 0, 0, 0, 0 };
Image image = { 0, 0, 0, 0, 0, 0 };
static const char *format_name[] = {
"gray", "RGB", "red", "green", "blue"
};
@ -1404,6 +1405,7 @@ scan_it (FILE *ofp)
if (first_frame)
{
image.num_channels = 1;
switch (parm.format)
{
case SANE_FRAME_RED:
@ -1412,6 +1414,7 @@ scan_it (FILE *ofp)
assert (parm.depth == 8);
must_buffer = 1;
offset = parm.format - SANE_FRAME_RED;
image.num_channels = 3;
break;
case SANE_FRAME_RGB:
@ -1539,6 +1542,7 @@ scan_it (FILE *ofp)
case SANE_FRAME_RED:
case SANE_FRAME_GREEN:
case SANE_FRAME_BLUE:
image.num_channels = 3;
for (i = 0; i < len; ++i)
{
image.data[offset + 3 * i] = buffer[i];
@ -1552,6 +1556,7 @@ scan_it (FILE *ofp)
break;
case SANE_FRAME_RGB:
image.num_channels = 1;
for (i = 0; i < len; ++i)
{
image.data[offset + i] = buffer[i];
@ -1565,6 +1570,7 @@ scan_it (FILE *ofp)
break;
case SANE_FRAME_GRAY:
image.num_channels = 1;
for (i = 0; i < len; ++i)
{
image.data[offset + i] = buffer[i];
@ -1747,7 +1753,7 @@ scan_it (FILE *ofp)
}
#endif
fwrite (image.data, 1, image.height * image.width, ofp);
fwrite (image.data, 1, image.height * image.width * image.num_channels, ofp);
}
#ifdef HAVE_LIBPNG
if(output_format == OUTPUT_PNG)
@ -1822,7 +1828,7 @@ test_it (void)
int i, len;
SANE_Parameters parm;
SANE_Status status;
Image image = { 0, 0, 0, 0, 0 };
Image image = { 0, 0, 0, 0, 0, 0 };
static const char *format_name[] =
{ "gray", "RGB", "red", "green", "blue" };