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Commit4bfd1ad

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Add missing v6utils file.
1 parent3bf1601 commit4bfd1ad

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2 files changed

+317
-0
lines changed

2 files changed

+317
-0
lines changed

‎src/backend/libpq/v6util.c

Lines changed: 300 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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#include"postgres.h"
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#include<errno.h>
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#include<unistd.h>
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#include<sys/types.h>
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#include<sys/stat.h>
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#include<sys/socket.h>
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#include<netdb.h>
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#include<netinet/in.h>
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#ifdefHAVE_NETINET_TCP_H
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#include<netinet/tcp.h>
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#endif
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#include<arpa/inet.h>
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#include<sys/file.h>
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#include"libpq/libpq.h"
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#include"miscadmin.h"
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#ifdefHAVE_UNIX_SOCKETS
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staticintga_unix(constchar*path,conststructaddrinfo*hintsp,
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structaddrinfo**result);
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#endif/* HAVE_UNIX_SOCKETS */
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intgetaddrinfo2(constchar*hostname,constchar*servname,
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conststructaddrinfo*hintp,structaddrinfo**result)
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{
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#ifdefHAVE_UNIX_SOCKETS
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if(hintp!=NULL&&hintp->ai_family==AF_UNIX){
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returnga_unix(servname,hintp,result);
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}
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else {
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#endif/* HAVE_UNIX_SOCKETS */
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returngetaddrinfo(hostname,servname,hintp,result);
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#ifdefHAVE_UNIX_SOCKETS
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}
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#endif/* HAVE_UNIX_SOCKETS */
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}
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voidfreeaddrinfo2(inthint_ai_family,structaddrinfo*ai)
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{
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#ifdefHAVE_UNIX_SOCKETS
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if(hint_ai_family==AF_UNIX){
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structaddrinfo*p;
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while(ai!=NULL){
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p=ai;
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ai=ai->ai_next;
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free(p->ai_addr);
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free(p);
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}
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}
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else {
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#endif/* HAVE_UNIX_SOCKETS */
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freeaddrinfo(ai);
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#ifdefHAVE_UNIX_SOCKETS
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}
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#endif/* HAVE_UNIX_SOCKETS */
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}
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#ifdefHAVE_UNIX_SOCKETS
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/**
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* Bug: only one addrinfo is set even though hintsp is NULL or
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* ai_socktype is 0
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* AI_CANNONNAME does not support.
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*/
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staticintga_unix(constchar*path,conststructaddrinfo*hintsp,
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structaddrinfo**result)
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{
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structaddrinfohints;
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structaddrinfo*aip;
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structsockaddr_un*unp;
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memset(&hints,0,sizeof(hints));
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if(hintsp==NULL){
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hints.ai_family=AF_UNIX;
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hints.ai_socktype=SOCK_STREAM;
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}
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else {
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memcpy(&hints,hintsp,sizeof(hints));
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}
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if(hints.ai_socktype==0){
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hints.ai_socktype=SOCK_STREAM;
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}
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if(!(hints.ai_family==AF_UNIX)){
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printf("hints.ai_family is invalied ga_unix()\n");
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returnEAI_ADDRFAMILY;
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}
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aip=calloc(1,sizeof(structaddrinfo));
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if(aip==NULL){
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returnEAI_MEMORY;
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}
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aip->ai_family=AF_UNIX;
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aip->ai_socktype=hints.ai_socktype;
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aip->ai_protocol=hints.ai_protocol;
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aip->ai_next=NULL;
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aip->ai_canonname=NULL;
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*result=aip;
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unp=calloc(1,sizeof(structsockaddr_un));
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if(aip==NULL){
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returnEAI_MEMORY;
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}
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unp->sun_family=AF_UNIX;
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aip->ai_addr= (structsockaddr*)unp;
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aip->ai_addrlen=sizeof(structsockaddr_un);
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if(strlen(path) >=sizeof(unp->sun_path)){
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returnEAI_SERVICE;
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}
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strcpy(unp->sun_path,path);
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#ifSALEN
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unp->sun_len=sizeof(structsockaddr_un);
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#endif/* SALEN */
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if(hints.ai_flags&AI_PASSIVE){
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unlink(unp->sun_path);
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}
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return0;
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}
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#endif/* HAVE_UNIX_SOCKETS */
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/**
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* SockAddr_ntop - set IP address string from SockAddr
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*
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* parameters... sa : SockAddr union
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* dst : buffer for address string
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* cnt : sizeof dst
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* v4conv: non-zero: if address is IPv4 mapped IPv6 address then
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* convert to IPv4 address.
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* returns... pointer to dst
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* if sa.sa_family is not AF_INET or AF_INET6 dst is set as empy string.
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*/
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char*SockAddr_ntop(constSockAddr*sa,char*dst,size_tcnt,intv4conv)
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{
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switch(sa->sa.sa_family){
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caseAF_INET:
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inet_ntop(AF_INET,&sa->in.sin_addr,dst,cnt);
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break;
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caseAF_INET6:
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inet_ntop(AF_INET6,&sa->in6.sin6_addr,dst,cnt);
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if(v4conv&&IN6_IS_ADDR_V4MAPPED(&sa->in6.sin6_addr) ){
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strcpy(dst,dst+7);
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}
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break;
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default:
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dst[0]='\0';
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break;
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}
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returndst;
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}
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intSockAddr_pton(SockAddr*sa,constchar*src,size_tcnt)
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{
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inti;
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intfamily=AF_INET;
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for(i=0;i<cnt;i++){
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if(src[i]==':'){
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family=AF_INET6;
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break;
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}
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}
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sa->sa.sa_family=family;
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switch(family){
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caseAF_INET:
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returninet_pton(AF_INET,src,&sa->in.sin_addr);
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caseAF_INET6:
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returninet_pton(AF_INET6,src,&sa->in6.sin6_addr);
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break;
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default:
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return-1;
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}
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}
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/**
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* isAF_INETx - check to see if sa is AF_INET or AF_INET6
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*
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* parameters... sa : SockAddr union
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* returns...
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* if sa->sa.sa_famil is AF_INET or AF_INET6 then
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* return 1
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* else
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* return 0
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*/
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intisAF_INETx(constSockAddr*sa)
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{
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if(sa->sa.sa_family==AF_INET||
209+
sa->sa.sa_family==AF_INET6
210+
){
211+
return1;
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}
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else {
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return0;
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}
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}
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intisAF_INETx2(intfamily)
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{
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if(family==AF_INET||
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family==AF_INET6
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){
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return1;
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}
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else {
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return0;
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}
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}
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intrangeSockAddr(constSockAddr*addr,constSockAddr*netaddr,constSockAddr*netmask)
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{
233+
if(addr->sa.sa_family==AF_INET){
234+
returnrangeSockAddrAF_INET(addr,netaddr,netmask);
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}
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elseif(addr->sa.sa_family==AF_INET6){
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returnrangeSockAddrAF_INET6(addr,netaddr,netmask);
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}
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else {
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return0;
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}
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}
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intrangeSockAddrAF_INET(constSockAddr*addr,constSockAddr*netaddr,
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constSockAddr*netmask)
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{
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if(addr->sa.sa_family!=AF_INET||
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netaddr->sa.sa_family!=AF_INET||
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netmask->sa.sa_family!=AF_INET ){
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return0;
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}
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if( ((addr->in.sin_addr.s_addr ^netaddr->in.sin_addr.s_addr )&
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netmask->in.sin_addr.s_addr)==0){
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return1;
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}
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else {
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return0;
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}
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}
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intrangeSockAddrAF_INET6(constSockAddr*addr,constSockAddr*netaddr,
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constSockAddr*netmask)
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{
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inti;
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if(IN6_IS_ADDR_V4MAPPED(&addr->in6.sin6_addr) ){
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SockAddraddr4;
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convSockAddr6to4(addr,&addr4);
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if(rangeSockAddrAF_INET(&addr4,netaddr,netmask)){
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return1;
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}
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}
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if(netaddr->sa.sa_family!=AF_INET6||
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netmask->sa.sa_family!=AF_INET6 ){
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return0;
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}
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for(i=0;i<16;i++){
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if( ((addr->in6.sin6_addr.s6_addr[i] ^netaddr->in6.sin6_addr.s6_addr[i] )&
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netmask->in6.sin6_addr.s6_addr[i] )!=0){
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return0;
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}
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}
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return1;
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}
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voidconvSockAddr6to4(constSockAddr*src,SockAddr*dst)
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{
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charaddr_str[INET6_ADDRSTRLEN];
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dst->in.sin_family=AF_INET;
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dst->in.sin_port=src->in6.sin6_port;
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dst->in.sin_addr.s_addr=src->in6.sin6_addr.s6_addr32[3];
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SockAddr_ntop(src,addr_str,INET6_ADDRSTRLEN,0);
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}
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‎src/include/libpq/v6util.h

Lines changed: 17 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,17 @@
1+
#ifndefV6UTIL_H
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#defineV6UTIL_H
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voidfreeaddrinfo2(inthint_ai_family,structaddrinfo*ai);
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intgetaddrinfo2(constchar*hostname,constchar*servname,
5+
conststructaddrinfo*hintp,structaddrinfo**result);
6+
char*SockAddr_ntop(constSockAddr*sa,char*dst,size_tcnt,intv4conv);
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intSockAddr_pton(SockAddr*sa,constchar*src,size_tcnt);
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intisAF_INETx(constSockAddr*sa);
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intisAF_INETx2(intfamily);
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intrangeSockAddr(constSockAddr*addr,constSockAddr*netaddr,constSockAddr*netmask);
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intrangeSockAddrAF_INET(constSockAddr*addr,constSockAddr*netaddr,
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constSockAddr*netmask);
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intrangeSockAddrAF_INET6(constSockAddr*addr,constSockAddr*netaddr,
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constSockAddr*netmask);
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voidconvSockAddr6to4(constSockAddr*src,SockAddr*dst);
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#endif/* V6UTIL_H */

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