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This commit is contained in:
Jakub Jelinek
2007-07-31 13:33:18 +00:00
parent d6220e9ee3
commit 32c075e1f0
448 changed files with 13841 additions and 10982 deletions
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40
inet/inet6_opt.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2006 Free Software Foundation, Inc.
/* Copyright (C) 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
@ -51,7 +51,7 @@ add_padding (uint8_t *extbuf, int offset, int npad)
{
if (npad == 1)
extbuf[offset] = IP6OPT_PAD1;
else
else if (npad > 0)
{
struct ip6_opt *pad_opt = (struct ip6_opt *) (extbuf + offset);
@ -102,21 +102,17 @@ inet6_opt_append (void *extbuf, socklen_t extlen, int offset, uint8_t type,
int data_offset = offset + sizeof (struct ip6_opt);
int npad = (align - data_offset % align) & (align - 1);
/* Now we can check whether the buffer is large enough. */
if (data_offset + npad + len > extlen)
return -1;
if (npad != 0)
{
if (extbuf != NULL)
add_padding (extbuf, offset, npad);
offset += npad;
}
/* Now prepare the option itself. */
if (extbuf != NULL)
{
/* Now we can check whether the buffer is large enough. */
if (data_offset + npad + len > extlen)
return -1;
add_padding (extbuf, offset, npad);
offset += npad;
/* Now prepare the option itself. */
struct ip6_opt *opt = (struct ip6_opt *) ((uint8_t *) extbuf + offset);
opt->ip6o_type = type;
@ -124,6 +120,8 @@ inet6_opt_append (void *extbuf, socklen_t extlen, int offset, uint8_t type,
*databufp = opt + 1;
}
else
offset += npad;
return offset + sizeof (struct ip6_opt) + len;
}
@ -145,12 +143,14 @@ inet6_opt_finish (void *extbuf, socklen_t extlen, int offset)
/* Required padding at the end. */
int npad = (8 - (offset & 7)) & 7;
/* Make sure the buffer is large enough. */
if (offset + npad > extlen)
return -1;
if (extbuf != NULL)
add_padding (extbuf, offset, npad);
{
/* Make sure the buffer is large enough. */
if (offset + npad > extlen)
return -1;
add_padding (extbuf, offset, npad);
}
return offset + npad;
}