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| author | Denys Vlasenko | 2011-11-07 16:21:24 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2011-11-07 16:21:24 +0100 |
| commit | 68c5b28156450d686605bd4715980037cabf1286 (patch) | |
| tree | 3360e61ad92015c5a34819b1a9c177524c237c02 /networking | |
| parent | 9ba75048c0099ed90b9a64cb7bb57bf12be93528 (diff) | |
| download | busybox-68c5b28156450d686605bd4715980037cabf1286.zip busybox-68c5b28156450d686605bd4715980037cabf1286.tar.gz | |
udhcpc6: fix endianness
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking')
| -rw-r--r-- | networking/udhcp/d6_common.h | 4 | ||||
| -rw-r--r-- | networking/udhcp/d6_dhcpc.c | 16 |
2 files changed, 10 insertions, 10 deletions
diff --git a/networking/udhcp/d6_common.h b/networking/udhcp/d6_common.h index 88afaf8..36d822f 100644 --- a/networking/udhcp/d6_common.h +++ b/networking/udhcp/d6_common.h @@ -54,10 +54,10 @@ struct udp_d6_packet { /*** Options ***/ struct d6_option { - uint8_t code; uint8_t code_hi; - uint8_t len; + uint8_t code; uint8_t len_hi; + uint8_t len; uint8_t data[1]; } PACKED; diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c index d1baaae..62d79b3 100644 --- a/networking/udhcp/d6_dhcpc.c +++ b/networking/udhcp/d6_dhcpc.c @@ -97,20 +97,20 @@ static void *d6_find_option(uint8_t *option, uint8_t *option_end, unsigned code) int len_m4 = option_end - option - 4; while (len_m4 >= 0) { /* Next option's len is too big? */ - if (option[2] > len_m4) + if (option[3] > len_m4) return NULL; /* yes. bogus packet! */ /* So far we treat any opts with code >255 * or len >255 as bogus, and stop at once. * This simplifies big-endian handling. */ - if (option[1] != 0 || option[3] != 0) + if (option[0] != 0 || option[2] != 0) return NULL; /* Option seems to be valid */ /* Does its code match? */ - if (option[0] == code) + if (option[1] == code) return option; /* yes! */ - option += option[2] + 4; - len_m4 -= option[2] + 4; + option += option[3] + 4; + len_m4 -= option[3] + 4; } return NULL; } @@ -120,7 +120,7 @@ static void *d6_copy_option(uint8_t *option, uint8_t *option_end, unsigned code) uint8_t *opt = d6_find_option(option, option_end, code); if (!opt) return opt; - return memcpy(xmalloc(opt[2] + 4), opt, opt[2] + 4); + return memcpy(xmalloc(opt[3] + 4), opt, opt[3] + 4); } static void *d6_store_blob(void *dst, const void *src, unsigned len) @@ -920,8 +920,8 @@ int udhcpc6_main(int argc UNUSED_PARAM, char **argv) clientid = xzalloc(2+2+2+2+6); clientid->code = D6_OPT_CLIENTID; clientid->len = 2+2+6; - clientid->data[0] = 3; /* DUID-LL */ - clientid->data[2] = 1; /* ethernet */ + clientid->data[1] = 3; /* DUID-LL */ + clientid->data[3] = 1; /* ethernet */ clientid_mac_ptr = clientid->data + 2+2; memcpy(clientid_mac_ptr, client_config.client_mac, 6); client_config.clientid = (void*)clientid; |