Add missing v6utils file.
This commit is contained in:
Bruce Momjian
parent
3bf160131d
commit
4bfd1ad9e0
300
src/backend/libpq/v6util.c
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300
src/backend/libpq/v6util.c
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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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#ifdef HAVE_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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#ifdef HAVE_UNIX_SOCKETS
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static int ga_unix(const char* path, const struct addrinfo* hintsp,
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struct addrinfo** result);
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#endif /* HAVE_UNIX_SOCKETS */
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int getaddrinfo2(const char* hostname, const char* servname,
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const struct addrinfo* hintp, struct addrinfo **result)
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{
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#ifdef HAVE_UNIX_SOCKETS
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if( hintp != NULL && hintp->ai_family == AF_UNIX){
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return ga_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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return getaddrinfo(hostname, servname, hintp, result);
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#ifdef HAVE_UNIX_SOCKETS
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}
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#endif /* HAVE_UNIX_SOCKETS */
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}
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void freeaddrinfo2(int hint_ai_family, struct addrinfo *ai)
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{
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#ifdef HAVE_UNIX_SOCKETS
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if(hint_ai_family == AF_UNIX){
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struct addrinfo *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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#ifdef HAVE_UNIX_SOCKETS
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}
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#endif /* HAVE_UNIX_SOCKETS */
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}
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#ifdef HAVE_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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static int ga_unix(const char* path, const struct addrinfo* hintsp,
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struct addrinfo** result)
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{
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struct addrinfo hints;
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struct addrinfo* aip;
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struct sockaddr_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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return EAI_ADDRFAMILY;
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}
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aip = calloc(1, sizeof(struct addrinfo));
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if(aip == NULL){
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return EAI_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(struct sockaddr_un));
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if(aip == NULL){
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return EAI_MEMORY;
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}
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unp->sun_family = AF_UNIX;
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aip->ai_addr = (struct sockaddr*) unp;
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aip->ai_addrlen = sizeof(struct sockaddr_un);
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if(strlen(path) >= sizeof(unp->sun_path)){
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return EAI_SERVICE;
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}
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strcpy(unp->sun_path, path);
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#if SALEN
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unp->sun_len = sizeof(struct sockaddr_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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return 0;
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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(const SockAddr* sa, char* dst, size_t cnt, int v4conv)
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{
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switch(sa->sa.sa_family){
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case AF_INET:
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inet_ntop(AF_INET, &sa->in.sin_addr, dst, cnt);
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break;
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case AF_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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return dst;
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}
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int SockAddr_pton(SockAddr* sa, const char* src, size_t cnt)
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{
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int i;
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int family = 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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case AF_INET:
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return inet_pton(AF_INET, src, &sa->in.sin_addr);
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case AF_INET6:
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return inet_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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int isAF_INETx(const SockAddr* sa)
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{
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if(sa->sa.sa_family == AF_INET ||
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sa->sa.sa_family == AF_INET6
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){
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return 1;
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}
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else {
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return 0;
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}
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}
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int isAF_INETx2(int family)
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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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return 1;
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}
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else {
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return 0;
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}
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}
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int rangeSockAddr(const SockAddr* addr, const SockAddr* netaddr, const SockAddr* netmask)
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{
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if(addr->sa.sa_family == AF_INET){
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return rangeSockAddrAF_INET(addr, netaddr, netmask);
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}
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else if(addr->sa.sa_family == AF_INET6){
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return rangeSockAddrAF_INET6(addr, netaddr, netmask);
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}
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else {
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return 0;
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}
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}
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int rangeSockAddrAF_INET(const SockAddr* addr, const SockAddr* netaddr,
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const SockAddr* 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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return 0;
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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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return 1;
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}
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else {
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return 0;
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}
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}
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int rangeSockAddrAF_INET6(const SockAddr* addr, const SockAddr* netaddr,
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const SockAddr* netmask)
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{
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int i;
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if(IN6_IS_ADDR_V4MAPPED(&addr->in6.sin6_addr) ){
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SockAddr addr4;
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convSockAddr6to4(addr, &addr4);
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if(rangeSockAddrAF_INET(&addr4, netaddr, netmask)){
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return 1;
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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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return 0;
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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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return 0;
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}
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}
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return 1;
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}
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void convSockAddr6to4(const SockAddr* src, SockAddr* dst)
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{
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char addr_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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17
src/include/libpq/v6util.h
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17
src/include/libpq/v6util.h
Normal file
@ -0,0 +1,17 @@
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#ifndef V6UTIL_H
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#define V6UTIL_H
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void freeaddrinfo2(int hint_ai_family, struct addrinfo *ai);
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int getaddrinfo2(const char* hostname, const char* servname,
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const struct addrinfo* hintp, struct addrinfo **result);
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char* SockAddr_ntop(const SockAddr* sa, char* dst, size_t cnt, int v4conv);
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int SockAddr_pton(SockAddr* sa, const char* src, size_t cnt);
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int isAF_INETx(const SockAddr* sa);
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int isAF_INETx2(int family);
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int rangeSockAddr(const SockAddr* addr, const SockAddr* netaddr, const SockAddr* netmask);
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int rangeSockAddrAF_INET(const SockAddr* addr, const SockAddr* netaddr,
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const SockAddr* netmask);
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int rangeSockAddrAF_INET6(const SockAddr* addr, const SockAddr* netaddr,
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const SockAddr* netmask);
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void convSockAddr6to4(const SockAddr* src, SockAddr* dst);
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#endif /* V6UTIL_H */
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