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fel: Safeguard against calling FEL read/write with zero bytes length

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Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>
This commit is contained in:
Bernhard Nortmann 2017-02-11 13:57:07 +01:00
parent d5f5d5d1ad
commit 3eb763588e
1 changed files with 15 additions and 9 deletions
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24
fel.c
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@ -197,22 +197,28 @@ void *load_file(const char *name, size_t *size)
void aw_fel_hexdump(feldev_handle *dev, uint32_t offset, size_t size)
{
unsigned char buf[size];
aw_fel_read(dev, offset, buf, size);
hexdump(buf, offset, size);
if (size > 0) {
unsigned char buf[size];
aw_fel_read(dev, offset, buf, size);
hexdump(buf, offset, size);
}
}
void aw_fel_dump(feldev_handle *dev, uint32_t offset, size_t size)
{
unsigned char buf[size];
aw_fel_read(dev, offset, buf, size);
fwrite(buf, size, 1, stdout);
if (size > 0) {
unsigned char buf[size];
aw_fel_read(dev, offset, buf, size);
fwrite(buf, size, 1, stdout);
}
}
void aw_fel_fill(feldev_handle *dev, uint32_t offset, size_t size, unsigned char value)
{
unsigned char buf[size];
memset(buf, value, size);
aw_write_buffer(dev, buf, offset, size, false);
if (size > 0) {
unsigned char buf[size];
memset(buf, value, size);
aw_write_buffer(dev, buf, offset, size, false);
}
}
static uint32_t fel_to_spl_thunk[] = {