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Remove configure probes for sys/un.h and struct sockaddr_un.

Browse Source 
<sys/un.h> is in SUSv3 and every targeted Unix has it.  Some Windows
tool chains may still lack the approximately equivalent header
<afunix.h>, so we already defined struct sockaddr_un ourselves on that
OS for now.  To harmonize things a bit, move our definition into a new
header src/include/port/win32/sys/un.h.

HAVE_UNIX_SOCKETS is now defined unconditionally.  We migh remove that
in a separate commit, pending discussion.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CA%2BhUKG%2BL_3brvh%3D8e0BW_VfX9h7MtwgN%3DnFHP5o7X2oZucY9dg%40mail.gmail.com
This commit is contained in:
Thomas Munro
2022-08-13 23:26:43 +12:00
parent 75357ab940
commit 077bf2f275
11 changed files with 23 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
config/c-library.m4
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@@ -76,20 +76,6 @@ AC_DEFUN([PGAC_UNION_SEMUN],
#endif])])# PGAC_UNION_SEMUN
# PGAC_STRUCT_SOCKADDR_UN
# -----------------------
# If `struct sockaddr_un' exists, define HAVE_STRUCT_SOCKADDR_UN.
# If it is missing then one could define it.
# (Requires test for <sys/un.h>!)
AC_DEFUN([PGAC_STRUCT_SOCKADDR_UN],
[AC_CHECK_TYPES([struct sockaddr_un], [], [],
[#include <sys/types.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
])])# PGAC_STRUCT_SOCKADDR_UN
# PGAC_STRUCT_SOCKADDR_STORAGE
# ----------------------------
# If `struct sockaddr_storage' exists, define HAVE_STRUCT_SOCKADDR_STORAGE.

17
configure vendored
View File

@@ -13874,7 +13874,7 @@ $as_echo "#define HAVE_STDBOOL_H 1" >>confdefs.h
fi
for ac_header in atomic.h copyfile.h execinfo.h getopt.h ifaddrs.h langinfo.h mbarrier.h net/if.h netinet/tcp.h sys/epoll.h sys/event.h sys/ipc.h sys/personality.h sys/prctl.h sys/procctl.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/signalfd.h sys/sockio.h sys/ucred.h sys/un.h termios.h ucred.h
for ac_header in atomic.h copyfile.h execinfo.h getopt.h ifaddrs.h langinfo.h mbarrier.h net/if.h netinet/tcp.h sys/epoll.h sys/event.h sys/ipc.h sys/personality.h sys/prctl.h sys/procctl.h sys/resource.h sys/select.h sys/sem.h sys/shm.h sys/signalfd.h sys/sockio.h sys/ucred.h termios.h ucred.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -15117,21 +15117,6 @@ cat >>confdefs.h <<_ACEOF
_ACEOF
fi
ac_fn_c_check_type "$LINENO" "struct sockaddr_un" "ac_cv_type_struct_sockaddr_un" "#include <sys/types.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
"
if test "x$ac_cv_type_struct_sockaddr_un" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SOCKADDR_UN 1
_ACEOF
fi
ac_fn_c_check_type "$LINENO" "struct sockaddr_storage" "ac_cv_type_struct_sockaddr_storage" "#include <sys/types.h>

2
configure.ac
View File

@@ -1467,7 +1467,6 @@ AC_CHECK_HEADERS(m4_normalize([
sys/signalfd.h
sys/sockio.h
sys/ucred.h
sys/un.h
termios.h
ucred.h
]))
@@ -1625,7 +1624,6 @@ PGAC_C_COMPUTED_GOTO
PGAC_STRUCT_TIMEZONE
PGAC_UNION_SEMUN
AC_CHECK_TYPES(socklen_t, [], [], [#include <sys/socket.h>])
PGAC_STRUCT_SOCKADDR_UN
PGAC_STRUCT_SOCKADDR_STORAGE
PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
PGAC_STRUCT_ADDRINFO

4
src/include/c.h
View File

@@ -1113,10 +1113,6 @@ extern void ExceptionalCondition(const char *conditionName,
* ----------------------------------------------------------------
*/
#ifdef HAVE_STRUCT_SOCKADDR_UN
#define HAVE_UNIX_SOCKETS 1
#endif
/*
* Invert the sign of a qsort-style comparison result, ie, exchange negative
* and positive integer values, being careful not to get the wrong answer

4
src/include/libpq/pqcomm.h
View File

@@ -17,10 +17,8 @@
#define PQCOMM_H
#include <sys/socket.h>
#include <netdb.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#include <netdb.h>
#include <netinet/in.h>
#ifdef HAVE_STRUCT_SOCKADDR_STORAGE

6
src/include/pg_config.h.in
View File

@@ -478,9 +478,6 @@
/* Define to 1 if `__ss_len' is a member of `struct sockaddr_storage'. */
#undef HAVE_STRUCT_SOCKADDR_STORAGE___SS_LEN
/* Define to 1 if the system has the type `struct sockaddr_un'. */
#undef HAVE_STRUCT_SOCKADDR_UN
/* Define to 1 if `tm_zone' is a member of `struct tm'. */
#undef HAVE_STRUCT_TM_TM_ZONE
@@ -538,9 +535,6 @@
/* Define to 1 if you have the <sys/ucred.h> header file. */
#undef HAVE_SYS_UCRED_H
/* Define to 1 if you have the <sys/un.h> header file. */
#undef HAVE_SYS_UN_H
/* Define to 1 if you have the <termios.h> header file. */
#undef HAVE_TERMIOS_H

3
src/include/port.h
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@@ -503,4 +503,7 @@ extern bool wait_result_is_any_signal(int exit_status, bool include_command_not_
#define HAVE_SYMLINK 1
#endif
/* Interfaces that we assume that all systems have. */
#define HAVE_UNIX_SOCKETS 1
#endif /* PG_PORT_H */

11
src/include/port/win32.h
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@@ -55,14 +55,3 @@
#ifdef _MSC_VER
#define PGDLLEXPORT __declspec (dllexport)
#endif
/*
* Windows headers don't define this structure, but you can define it yourself
* to use the functionality.
*/
struct sockaddr_un
{
unsigned short sun_family;
char sun_path[108];
};
#define HAVE_STRUCT_SOCKADDR_UN 1

17
src/include/port/win32/sys/un.h Normal file
View File

@@ -0,0 +1,17 @@
/*
* src/include/port/win32/sys/un.h
*/
#ifndef WIN32_SYS_UN_H
#define WIN32_SYS_UN_H
/*
* Windows defines this structure in <afunix.h>, but not all tool chains have
* the header yet, so we define it here for now.
*/
struct sockaddr_un
{
unsigned short sun_family;
char sun_path[108];
};
#endif

4
src/port/getpeereid.c
View File

@@ -16,10 +16,8 @@
#include <sys/param.h>
#include <sys/socket.h>
#include <unistd.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#include <unistd.h>
#ifdef HAVE_UCRED_H
#include <ucred.h>
#endif

2
src/tools/msvc/Solution.pm
View File

@@ -355,7 +355,6 @@ sub GenerateFiles
HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN => undef,
HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY => undef,
HAVE_STRUCT_SOCKADDR_STORAGE___SS_LEN => undef,
HAVE_STRUCT_SOCKADDR_UN => undef,
HAVE_STRUCT_TM_TM_ZONE => undef,
HAVE_SYNC_FILE_RANGE => undef,
HAVE_SYNCFS => undef,
@@ -375,7 +374,6 @@ sub GenerateFiles
HAVE_SYS_STAT_H => 1,
HAVE_SYS_TYPES_H => 1,
HAVE_SYS_UCRED_H => undef,
HAVE_SYS_UN_H => undef,
HAVE_TERMIOS_H => undef,
HAVE_TYPEOF => undef,
HAVE_UCRED_H => undef,