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* cache.c (cache_bread): Set bfd_error_file_truncated if EOF

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was reached.
	* srec.c (srec_scan): Calculate the checksum.  Complain on mismatch.
This commit is contained in:
Daniel Jacobowitz
2008-02-11 13:52:02 +00:00
parent af1be95ea4
commit 662ed161c7
3 changed files with 47 additions and 1 deletions
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38
bfd/srec.c
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@@ -458,6 +458,7 @@ srec_scan (bfd *abfd)
unsigned int bytes;
bfd_vma address;
bfd_byte *data;
unsigned char check_sum;
/* Starting an S-record. */
@@ -476,7 +477,7 @@ srec_scan (bfd *abfd)
goto error_return;
}
bytes = HEX (hdr + 1);
check_sum = bytes = HEX (hdr + 1);
if (bytes * 2 > bufsize)
{
if (buf != NULL)
@@ -505,18 +506,22 @@ srec_scan (bfd *abfd)
break;
case '3':
check_sum += HEX (data);
address = HEX (data);
data += 2;
--bytes;
/* Fall through. */
case '2':
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
--bytes;
/* Fall through. */
case '1':
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
bytes -= 2;
@@ -548,25 +553,56 @@ srec_scan (bfd *abfd)
sec->size = bytes;
sec->filepos = pos;
}
while (bytes > 0)
{
check_sum += HEX (data);
data += 2;
bytes--;
}
check_sum = 255 - (check_sum & 0xff);
if (check_sum != HEX (data))
{
(*_bfd_error_handler)
(_("%B:%d: Bad checksum in S-record file\n"),
abfd, lineno);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
break;
case '7':
check_sum += HEX (data);
address = HEX (data);
data += 2;
/* Fall through. */
case '8':
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
/* Fall through. */
case '9':
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
check_sum += HEX (data);
address = (address << 8) | HEX (data);
data += 2;
/* This is a termination record. */
abfd->start_address = address;
check_sum = 255 - (check_sum & 0xff);
if (check_sum != HEX (data))
{
(*_bfd_error_handler)
(_("%B:%d: Bad checksum in S-record file\n"),
abfd, lineno);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
if (buf != NULL)
free (buf);