dns: create sockcmp function.
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parent
1c99f551e3
commit
b3265d7afb
2 changed files with 36 additions and 23 deletions
57
authd/dns.c
57
authd/dns.c
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@ -29,6 +29,7 @@ format_address(struct rb_sockaddr_storage *addr, char *buffer, size_t length)
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{
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{
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rb_inet_ntop_sock((struct sockaddr *)addr, buffer, length);
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rb_inet_ntop_sock((struct sockaddr *)addr, buffer, length);
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}
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}
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#ifdef RB_IPV6
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else if(GET_SS_FAMILY(addr) == AF_INET6)
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else if(GET_SS_FAMILY(addr) == AF_INET6)
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{
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{
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char tmpbuf[length];
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char tmpbuf[length];
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@ -43,6 +44,32 @@ format_address(struct rb_sockaddr_storage *addr, char *buffer, size_t length)
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else
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else
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rb_strlcpy(buffer, tmpbuf, length);
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rb_strlcpy(buffer, tmpbuf, length);
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}
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}
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#endif
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}
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bool
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sockcmp(struct rb_sockaddr_storage *addr, struct rb_sockaddr_storage *addr2, int family)
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{
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if(family == AF_INET)
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{
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struct sockaddr_in *ip, *ip2;
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ip = (struct sockaddr_in *)addr;
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ip2 = (struct sockaddr_in *)addr2;
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return ip->sin_addr.s_addr == ip2->sin_addr.s_addr;
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}
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#ifdef RB_IPV6
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else if(family == AF_INET6)
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{
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struct sockaddr_in6 *ip, *ip2;
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ip = (struct sockaddr_in6 *) addr;
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ip2 = (struct sockaddr_in6 *) addr2;
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return(memcmp(&ip->sin6_addr, &ip2->sin6_addr, sizeof(struct in6_addr)) == 0);
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}
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#endif
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return false;
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}
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}
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static void
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static void
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@ -51,6 +78,7 @@ submit_dns_answer(void *userdata, struct DNSReply *reply)
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struct dns_request *req = userdata;
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struct dns_request *req = userdata;
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char response[64] = "*";
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char response[64] = "*";
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char status = 'E';
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char status = 'E';
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int family = AF_INET;
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if (reply == NULL)
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if (reply == NULL)
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{
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{
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@ -66,34 +94,17 @@ submit_dns_answer(void *userdata, struct DNSReply *reply)
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format_address(&reply->addr, response, sizeof(response));
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format_address(&reply->addr, response, sizeof(response));
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break;
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break;
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#endif
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#endif
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case 'R':
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{
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struct sockaddr_in *ip, *ip_fwd;
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ip = (struct sockaddr_in *) &req->addr;
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ip_fwd = (struct sockaddr_in *) &reply->addr;
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if(ip->sin_addr.s_addr == ip_fwd->sin_addr.s_addr && strlen(reply->h_name) < 63)
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{
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rb_strlcpy(response, reply->h_name, sizeof(response));
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status = 'O';
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}
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}
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break;
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#ifdef RB_IPV6
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#ifdef RB_IPV6
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case 'S':
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case 'S':
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family = AF_INET6;
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#endif
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case 'R':
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if(sockcmp(&req->addr, &reply->addr, family) && strlen(reply->h_name) < 63)
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{
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{
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struct sockaddr_in6 *ip, *ip_fwd;
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rb_strlcpy(response, reply->h_name, sizeof(response));
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ip = (struct sockaddr_in6 *) &req->addr;
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status = 'O';
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ip_fwd = (struct sockaddr_in6 *) &reply->addr;
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if(memcmp(&ip->sin6_addr, &ip_fwd->sin6_addr, sizeof(struct in6_addr)) == 0 && strlen(reply->h_name) < 63)
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{
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rb_strlcpy(response, reply->h_name, sizeof(response));
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status = 'O';
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}
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}
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}
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break;
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break;
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#endif
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default:
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default:
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exit(7);
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exit(7);
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}
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}
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@ -23,6 +23,7 @@
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#define DNS_REQ_IDLEN 10
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#define DNS_REQ_IDLEN 10
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#include "stdinc.h"
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#include "res.h"
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#include "res.h"
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#include "reslib.h"
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#include "reslib.h"
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@ -35,6 +36,7 @@ struct dns_request
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};
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};
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extern void format_address(struct rb_sockaddr_storage *addr, char *buffer, size_t length);
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extern void format_address(struct rb_sockaddr_storage *addr, char *buffer, size_t length);
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extern bool sockcmp(struct rb_sockaddr_storage *addr, struct rb_sockaddr_storage *addr2, int family);
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extern void resolve_dns(int parc, char *parv[]);
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extern void resolve_dns(int parc, char *parv[]);
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extern void enumerate_nameservers(const char *rid, const char letter);
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extern void enumerate_nameservers(const char *rid, const char letter);
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extern void reload_nameservers(const char letter);
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extern void reload_nameservers(const char letter);
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