diff options
| author | Roy Marples <roy@marples.name> | 2020-05-05 19:03:49 +0000 |
|---|---|---|
| committer | Roy Marples <roy@marples.name> | 2020-05-05 19:03:49 +0000 |
| commit | 032bb2e172c77dee0aaa49f625043598f117e915 (patch) | |
| tree | b619211829fb48f9eda1a40c1c71f6ce54baf0a2 /src/ipv6nd.c | |
| parent | 5a3fd90a17d8c0cda02dd4ca590f29acf5912d83 (diff) | |
| download | dhcpcd-032bb2e172c77dee0aaa49f625043598f117e915.tar.xz | |
DHCP: Use correct buffer for receiving UDP
Big wup!
While here, ensure buffer is aligned to the structure we want
to read.
Diffstat (limited to 'src/ipv6nd.c')
| -rw-r--r-- | src/ipv6nd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/ipv6nd.c b/src/ipv6nd.c index 73df9109..ae267c7a 100644 --- a/src/ipv6nd.c +++ b/src/ipv6nd.c @@ -1937,10 +1937,12 @@ ipv6nd_handledata(void *arg) struct dhcpcd_ctx *ctx; int fd; struct sockaddr_in6 from; - unsigned char buf[64 * 1024]; /* Maximum ICMPv6 size */ + union { + struct icmp6_hdr hdr; + uint8_t buf[64 * 1024]; /* Maximum ICMPv6 size */ + } iovbuf; struct iovec iov = { - .iov_base = buf, - .iov_len = sizeof(buf), + .iov_base = iovbuf.buf, .iov_len = sizeof(iovbuf.buf), }; union { struct cmsghdr hdr; |