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| author | Denys Vlasenko | 2010-04-14 10:14:25 -0700 |
|---|---|---|
| committer | Denys Vlasenko | 2010-04-14 10:14:25 -0700 |
| commit | 0ecc11659285337c0430f1b7004eb3b2901a93d3 (patch) | |
| tree | 2d18e7be993b0b720b41b4e72601cb3c608f00a7 | |
| parent | 8597da193474673a3caeffcf3d134bb2ed57aa4d (diff) | |
| download | busybox-0ecc11659285337c0430f1b7004eb3b2901a93d3.zip busybox-0ecc11659285337c0430f1b7004eb3b2901a93d3.tar.gz | |
dnsd: enforce alignment on packet buffer
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | include/platform.h | 2 | ||||
| -rw-r--r-- | networking/dnsd.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/platform.h b/include/platform.h index 2d3821c..f87add5 100644 --- a/include/platform.h +++ b/include/platform.h @@ -281,10 +281,12 @@ typedef unsigned smalluint; #if 1 /* if needed: !defined(arch1) && !defined(arch2) */ # define ALIGN1 __attribute__((aligned(1))) # define ALIGN2 __attribute__((aligned(2))) +# define ALIGN4 __attribute__((aligned(4))) #else /* Arches which MUST have 2 or 4 byte alignment for everything are here */ # define ALIGN1 # define ALIGN2 +# define ALIGN4 #endif diff --git a/networking/dnsd.c b/networking/dnsd.c index 6771c53..c76a54f 100644 --- a/networking/dnsd.c +++ b/networking/dnsd.c @@ -480,7 +480,8 @@ int dnsd_main(int argc UNUSED_PARAM, char **argv) unsigned lsa_size; int udps, opts; uint16_t port = 53; - uint8_t buf[MAX_PACK_LEN + 1]; + /* Ensure buf is 32bit aligned (we need 16bit, but 32bit can't hurt) */ + uint8_t buf[MAX_PACK_LEN + 1] ALIGN4; opts = getopt32(argv, "vsi:c:t:p:d", &listen_interface, &fileconf, &sttl, &sport); //if (opts & (1 << 0)) // -v |