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Add support for abstract Unix-domain sockets

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This is a variant of the normal Unix-domain sockets that don't use the
file system but a separate "abstract" namespace.  At the user
interface, such sockets are represented by names starting with "@".
Supported on Linux and Windows right now.

Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://www.postgresql.org/message-id/flat/6dee8574-b0ad-fc49-9c8c-2edc796f0033@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-11-25 08:14:23 +01:00
parent a7e65dc88b
commit c9f0624bc2
8 changed files with 76 additions and 16 deletions
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4
src/interfaces/libpq/fe-connect.c
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@ -1093,7 +1093,7 @@ connectOptions2(PGconn *conn)
{
ch->type = CHT_HOST_NAME;
#ifdef HAVE_UNIX_SOCKETS
if (is_absolute_path(ch->host))
if (is_unixsock_path(ch->host))
ch->type = CHT_UNIX_SOCKET;
#endif
}
@ -6945,7 +6945,7 @@ passwordFromFile(const char *hostname, const char *port, const char *dbname,
/* 'localhost' matches pghost of '' or the default socket directory */
if (hostname == NULL || hostname[0] == '\0')
hostname = DefaultHost;
else if (is_absolute_path(hostname))
else if (is_unixsock_path(hostname))
/*
* We should probably use canonicalize_path(), but then we have to