diff options
Diffstat (limited to 'inet/inet6_opt.c')
| -rw-r--r-- | inet/inet6_opt.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/inet/inet6_opt.c b/inet/inet6_opt.c index 17d3fee..bddb851 100644 --- a/inet/inet6_opt.c +++ b/inet/inet6_opt.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2006, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2006 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 if (npad > 0) + else { struct ip6_opt *pad_opt = (struct ip6_opt *) (extbuf + offset); @@ -102,17 +102,21 @@ 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); - if (extbuf != NULL) - { - /* Now we can check whether the buffer is large enough. */ - if (data_offset + npad + len > extlen) - return -1; + /* Now we can check whether the buffer is large enough. */ + if (data_offset + npad + len > extlen) + return -1; - add_padding (extbuf, offset, npad); + if (npad != 0) + { + if (extbuf != NULL) + add_padding (extbuf, offset, npad); offset += npad; + } - /* Now prepare the option itself. */ + /* Now prepare the option itself. */ + if (extbuf != NULL) + { struct ip6_opt *opt = (struct ip6_opt *) ((uint8_t *) extbuf + offset); opt->ip6o_type = type; @@ -120,8 +124,6 @@ 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; } @@ -143,14 +145,12 @@ inet6_opt_finish (void *extbuf, socklen_t extlen, int offset) /* Required padding at the end. */ int npad = (8 - (offset & 7)) & 7; - if (extbuf != NULL) - { - /* Make sure the buffer is large enough. */ - if (offset + npad > extlen) - return -1; + /* Make sure the buffer is large enough. */ + if (offset + npad > extlen) + return -1; - add_padding (extbuf, offset, npad); - } + if (extbuf != NULL) + add_padding (extbuf, offset, npad); return offset + npad; } |