diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/getaddrinfo.h | 3 | ||||
| -rw-r--r-- | src/include/libpq/libpq-be.h | 22 |
2 files changed, 19 insertions, 6 deletions
diff --git a/src/include/getaddrinfo.h b/src/include/getaddrinfo.h index 6192d1fe895..7995235d9fa 100644 --- a/src/include/getaddrinfo.h +++ b/src/include/getaddrinfo.h @@ -82,6 +82,9 @@ #ifndef NI_NUMERICSERV #define NI_NUMERICSERV 2 #endif +#ifndef NI_NAMEREQD +#define NI_NAMEREQD 4 +#endif #ifndef NI_MAXHOST #define NI_MAXHOST 1025 diff --git a/src/include/libpq/libpq-be.h b/src/include/libpq/libpq-be.h index 270e8fbb14b..dbf3a20ed91 100644 --- a/src/include/libpq/libpq-be.h +++ b/src/include/libpq/libpq-be.h @@ -104,6 +104,20 @@ extern int ssl_renegotiation_limit; * still available when a backend is running (see MyProcPort). The data * it points to must also be malloc'd, or else palloc'd in TopMemoryContext, * so that it survives into PostgresMain execution! + * + * remote_hostname is set if we did a successful reverse lookup of the + * client's IP address during connection setup. + * remote_hostname_resolv tracks the state of hostname verification: + * +1 = remote_hostname is known to resolve to client's IP address + * -1 = remote_hostname is known NOT to resolve to client's IP address + * 0 = we have not done the forward DNS lookup yet + * -2 = there was an error in name resolution + * If reverse lookup of the client IP address fails, remote_hostname will be + * left NULL while remote_hostname_resolv is set to -2. If reverse lookup + * succeeds but forward lookup fails, remote_hostname_resolv is also set to -2 + * (the case is distinguishable because remote_hostname isn't NULL). In + * either of the -2 cases, remote_hostname_errcode saves the lookup return + * code for possible later use with gai_strerror. */ typedef struct Port @@ -116,12 +130,8 @@ typedef struct Port char *remote_host; /* name (or ip addr) of remote host */ char *remote_hostname;/* name (not ip addr) of remote host, if * available */ - int remote_hostname_resolv; /* +1 = remote_hostname is known to - * resolve to client's IP address; -1 - * = remote_hostname is known NOT to - * resolve to client's IP address; 0 = - * we have not done the forward DNS - * lookup yet */ + int remote_hostname_resolv; /* see above */ + int remote_hostname_errcode; /* see above */ char *remote_port; /* text rep of remote port */ CAC_state canAcceptConnections; /* postmaster connection status */ |