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| author | Stefano Brivio <sbrivio@redhat.com> | 2021-10-21 17:34:42 +0200 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2021-10-21 17:34:42 +0200 |
| commit | 73a4a6b7cd4570f77c8ebb1cf6808b13d62b4db0 (patch) | |
| tree | 521b38a8a279c402095bbde76072608b5b5d4bed /ndp.c | |
| parent | af55c4e98fd164669bb3d1149fb097c365085353 (diff) | |
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ndp: Don't send a DNS search list if we don't have a list of DNS servers
This is not explicitly forbidden, but it confuses the ISC's DHCP client,
and doesn't make sense anyway.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'ndp.c')
| -rw-r--r-- | ndp.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -140,10 +140,11 @@ int ndp(struct ctx *c, struct ethhdr *eh, size_t len) memcpy(p, &c->dns6[i], 16); /* address */ p += 16; } + + for (n = 0; *c->dns_search[n].n; n++) + dns_s_len += strlen(c->dns_search[n].n) + 2; } - for (n = 0; *c->dns_search[n].n; n++) - dns_s_len += strlen(c->dns_search[n].n) + 2; if (dns_s_len) { *p++ = 31; /* DNSSL */ *p++ = (len + 8 - 1) / 8 + 1; /* length */ |