diff options
| author | hpa <hpa> | 2004-12-28 21:40:46 +0000 |
|---|---|---|
| committer | hpa <hpa> | 2004-12-28 21:40:46 +0000 |
| commit | 97530bd26972b047c912b1d0c7fc932d722a3a86 (patch) | |
| tree | a5f2168e59e2285aca2d847a1b9a7b254550b379 /dnsresolv.inc | |
| parent | 009113a81bb4e219033665557283027c68f9565a (diff) | |
| download | syslinux-97530bd26972b047c912b1d0c7fc932d722a3a86.tar.gz | |
Add support for non-FQDN hostnames.
Diffstat (limited to 'dnsresolv.inc')
| -rw-r--r-- | dnsresolv.inc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/dnsresolv.inc b/dnsresolv.inc index 4364c449..d10c7d1d 100644 --- a/dnsresolv.inc +++ b/dnsresolv.inc @@ -34,11 +34,14 @@ DNS_MAX_SERVERS equ 4 ; Max no of DNS servers ; Assumes DS == ES. Change references to [bx] to [es:bx] to remove ; that assumption. ; +; On return, DX contains the number of dots encountered. +; dns_mangle: push ax push bx -.nostart: + xor dx,dx .isdot: + inc dx xor al,al mov bx,di stosb @@ -55,6 +58,7 @@ dns_mangle: jmp .getbyte .endstring: dec si + dec dx ; We always counted one high cmp byte [bx],0 jz .done xor al,al @@ -158,6 +162,7 @@ dns_skiplabel: alignb 2, db 0 DNSSendBuf resb DNS_MAX_PACKET DNSRecvBuf resb DNS_MAX_PACKET +LocalDomain resb 256 ; Max possible length DNSServers resd DNS_MAX_SERVERS section .data @@ -204,9 +209,15 @@ dns_resolv: stosw call dns_mangle ; Convert name to DNS labels - push si ; Save pointer to after DNS string + and dx,dx + jnz .fqdn ; If we have dots, assume it's FQDN + dec di ; Remove final null + mov si,LocalDomain + call strcpy ; Uncompressed DNS label set so it ends in null +.fqdn: + mov ax,htons(1) stosw ; QTYPE = 1 = A stosw ; QCLASS = 1 = IN |