Hi Peter,
Here's a new patch based on your review. Where I had a question I made
a choice as described below:
On 9/1/17 1:58 PM, David Steele wrote:
> On 9/1/17 1:15 PM, Peter Eisentraut wrote:
>> On 8/29/17 12:15, David Steele wrote:
>>
>> I wonder whether we even need that much flexibility. We already set a
>> global umask, so we could just open all files with 0666 and let the
>> umask sort it out. Then we don't need all the *Perm() variants.
>
> Well, there's one instance where the *Perm is used:
>
> diff --git a/src/backend/libpq/be-fsstubs.c b/src/backend/libpq/be-fsstubs.c
> - fd = OpenTransientFile(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC |
> PG_BINARY,
> - S_IRUSR | S_IWUSR | S_IRGRP
> | S_IROTH);
> + fd = OpenTransientFilePerm(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC |
> PG_BINARY,
> + S_IRUSR | S_IWUSR |
> S_IRGRP | S_IROTH);
>
> I also think it's worth leaving the variants for extensions to use.
> Even though there are no calls in the core extensions it's hard to say
> what might be out there in the field.
These have been left in.
>> I don't like the function-like macros in fd.h. We can use proper functions.
>
> I had them as functions originally but thought macros might be
> friendlier with compilers that don't inline. I'm happy to change them back.
Macros have been converted to functions.
>> I also wonder whether the umask save-and-restore code in copy.c and
>> be-fsstubs.c is sound. If the AllocateFile() call in between errors
>> out, then there is nothing that restores the original umask. This might
>> need a TRY/CATCH block, or maybe just a chmod() afterwards.
>
> Unless I'm mistaken this is a preexisting issue. Would you prefer I
> submit a different patch for that or combine it into this patch?
>
> The chmod() implementation seems the safer option to me and produces
> fewer code paths. It also prevents partially-written files from being
> accessible to any user but postgres.
I went with chmod(). The fix is incorporated in this patch but if you
want it broken out let me know.
>> The mkdir() calls could perhaps use some further refactoring so you
>> don't have to specify the mode everywhere.
>
> I thought about that but feared it would be considered an overreach.
> Does fd.c seem like a good place for the new function?
New functions MakeDirectory() and MakeDirectoryPerm() have been added to
fd.c.
MakeDirectoryPerm() is used in ipc.c.
>> This kind of code:
>>
>> - if (stat_buf.st_mode & (S_IRWXG | S_IRWXO))
>> + if (stat_buf.st_mode & PG_MODE_MASK_DEFAULT)
>> ereport(FATAL,
>> (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
>> errmsg("data directory \"%s\" has group or world access",
>> DataDir),
>> - errdetail("Permissions should be u=rwx (0700).")));
>> + errdetail("Permissions should be (%04o).",
>> PG_DIR_MODE_DEFAULT)));
>>
>> can be problematic, because we are hoping that PG_MODE_MASK_DEFAULT,
>> PG_DIR_MODE_DEFAULT, and the wording in the error message can stay
>> consistent.
>
> Well, the eventual goal is to make the mask/mode configurable - at least
> to the extent that group access is allowed. However, I'm happy to leave
> that discussion for another day.
Changes to postmaster.c have been reverted (except to rename mkdir to
MakeDirectory).
Patch v2 is attached.
--
-David
da...@pgmasters.net
diff --git a/contrib/pg_stat_statements/pg_stat_statements.c
b/contrib/pg_stat_statements/pg_stat_statements.c
index fa409d72b7..3ab1fd2db4 100644
--- a/contrib/pg_stat_statements/pg_stat_statements.c
+++ b/contrib/pg_stat_statements/pg_stat_statements.c
@@ -1869,8 +1869,7 @@ qtext_store(const char *query, int query_len,
*query_offset = off;
/* Now write the data into the successfully-reserved part of the file */
- fd = OpenTransientFile(PGSS_TEXT_FILE, O_RDWR | O_CREAT | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(PGSS_TEXT_FILE, O_RDWR | O_CREAT | PG_BINARY);
if (fd < 0)
goto error;
@@ -1934,7 +1933,7 @@ qtext_load_file(Size *buffer_size)
int fd;
struct stat stat;
- fd = OpenTransientFile(PGSS_TEXT_FILE, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile(PGSS_TEXT_FILE, O_RDONLY | PG_BINARY);
if (fd < 0)
{
if (errno != ENOENT)
diff --git a/src/backend/access/heap/rewriteheap.c
b/src/backend/access/heap/rewriteheap.c
index bd560e47e1..f93c194e18 100644
--- a/src/backend/access/heap/rewriteheap.c
+++ b/src/backend/access/heap/rewriteheap.c
@@ -1013,8 +1013,7 @@ logical_rewrite_log_mapping(RewriteState state,
TransactionId xid,
src->off = 0;
memcpy(src->path, path, sizeof(path));
src->vfd = PathNameOpenFile(path,
- O_CREAT
| O_EXCL | O_WRONLY | PG_BINARY,
- S_IRUSR
| S_IWUSR);
+ O_CREAT
| O_EXCL | O_WRONLY | PG_BINARY);
if (src->vfd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -1133,8 +1132,7 @@ heap_xlog_logical_rewrite(XLogReaderState *r)
xlrec->mapped_xid, XLogRecGetXid(r));
fd = OpenTransientFile(path,
- O_CREAT | O_WRONLY |
PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_CREAT | O_WRONLY |
PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -1258,7 +1256,7 @@ CheckPointLogicalRewriteHeap(void)
}
else
{
- int fd = OpenTransientFile(path,
O_RDONLY | PG_BINARY, 0);
+ int fd = OpenTransientFile(path,
O_RDONLY | PG_BINARY);
/*
* The file cannot vanish due to concurrency since this
function
diff --git a/src/backend/access/transam/slru.c
b/src/backend/access/transam/slru.c
index 77edc51e1c..9dd77190ec 100644
--- a/src/backend/access/transam/slru.c
+++ b/src/backend/access/transam/slru.c
@@ -599,7 +599,7 @@ SimpleLruDoesPhysicalPageExist(SlruCtl ctl, int pageno)
SlruFileName(ctl, path, segno);
- fd = OpenTransientFile(path, O_RDWR | PG_BINARY, S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(path, O_RDWR | PG_BINARY);
if (fd < 0)
{
/* expected: file doesn't exist */
@@ -654,7 +654,7 @@ SlruPhysicalReadPage(SlruCtl ctl, int pageno, int slotno)
* SlruPhysicalWritePage). Hence, if we are InRecovery, allow the case
* where the file doesn't exist, and return zeroes instead.
*/
- fd = OpenTransientFile(path, O_RDWR | PG_BINARY, S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(path, O_RDWR | PG_BINARY);
if (fd < 0)
{
if (errno != ENOENT || !InRecovery)
@@ -804,8 +804,7 @@ SlruPhysicalWritePage(SlruCtl ctl, int pageno, int slotno,
SlruFlush fdata)
* don't use O_EXCL or O_TRUNC or anything like that.
*/
SlruFileName(ctl, path, segno);
- fd = OpenTransientFile(path, O_RDWR | O_CREAT | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(path, O_RDWR | O_CREAT | PG_BINARY);
if (fd < 0)
{
slru_errcause = SLRU_OPEN_FAILED;
diff --git a/src/backend/access/transam/timeline.c
b/src/backend/access/transam/timeline.c
index 63db8a981d..3d65e5624a 100644
--- a/src/backend/access/transam/timeline.c
+++ b/src/backend/access/transam/timeline.c
@@ -307,8 +307,7 @@ writeTimeLineHistory(TimeLineID newTLI, TimeLineID
parentTLI,
unlink(tmppath);
/* do not use get_sync_bit() here --- want to fsync only at end of fill
*/
- fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -325,7 +324,7 @@ writeTimeLineHistory(TimeLineID newTLI, TimeLineID
parentTLI,
else
TLHistoryFilePath(path, parentTLI);
- srcfd = OpenTransientFile(path, O_RDONLY, 0);
+ srcfd = OpenTransientFile(path, O_RDONLY);
if (srcfd < 0)
{
if (errno != ENOENT)
@@ -459,8 +458,7 @@ writeTimeLineHistoryFile(TimeLineID tli, char *content, int
size)
unlink(tmppath);
/* do not use get_sync_bit() here --- want to fsync only at end of fill
*/
- fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/backend/access/transam/twophase.c
b/src/backend/access/transam/twophase.c
index ae832917ce..5c58469425 100644
--- a/src/backend/access/transam/twophase.c
+++ b/src/backend/access/transam/twophase.c
@@ -1195,7 +1195,7 @@ ReadTwoPhaseFile(TransactionId xid, bool give_warnings)
TwoPhaseFilePath(path, xid);
- fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (fd < 0)
{
if (give_warnings)
@@ -1580,8 +1580,7 @@ RecreateTwoPhaseFile(TransactionId xid, void *content,
int len)
TwoPhaseFilePath(path, xid);
fd = OpenTransientFile(path,
- O_CREAT | O_TRUNC | O_WRONLY
| PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_CREAT | O_TRUNC | O_WRONLY
| PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/backend/access/transam/xlog.c
b/src/backend/access/transam/xlog.c
index a3e8ce092f..cfdba80fdd 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -3168,8 +3168,7 @@ XLogFileInit(XLogSegNo logsegno, bool *use_existent, bool
use_lock)
*/
if (*use_existent)
{
- fd = BasicOpenFile(path, O_RDWR | PG_BINARY |
get_sync_bit(sync_method),
- S_IRUSR | S_IWUSR);
+ fd = BasicOpenFile(path, O_RDWR | PG_BINARY |
get_sync_bit(sync_method));
if (fd < 0)
{
if (errno != ENOENT)
@@ -3194,8 +3193,7 @@ XLogFileInit(XLogSegNo logsegno, bool *use_existent, bool
use_lock)
unlink(tmppath);
/* do not use get_sync_bit() here --- want to fsync only at end of fill
*/
- fd = BasicOpenFile(tmppath, O_RDWR | O_CREAT | O_EXCL | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = BasicOpenFile(tmppath, O_RDWR | O_CREAT | O_EXCL | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -3291,8 +3289,7 @@ XLogFileInit(XLogSegNo logsegno, bool *use_existent, bool
use_lock)
*use_existent = false;
/* Now open original target segment (might not be file I just made) */
- fd = BasicOpenFile(path, O_RDWR | PG_BINARY | get_sync_bit(sync_method),
- S_IRUSR | S_IWUSR);
+ fd = BasicOpenFile(path, O_RDWR | PG_BINARY |
get_sync_bit(sync_method));
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -3333,7 +3330,7 @@ XLogFileCopy(XLogSegNo destsegno, TimeLineID srcTLI,
XLogSegNo srcsegno,
* Open the source file
*/
XLogFilePath(path, srcTLI, srcsegno);
- srcfd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
+ srcfd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (srcfd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -3347,8 +3344,7 @@ XLogFileCopy(XLogSegNo destsegno, TimeLineID srcTLI,
XLogSegNo srcsegno,
unlink(tmppath);
/* do not use get_sync_bit() here --- want to fsync only at end of fill
*/
- fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(tmppath, O_RDWR | O_CREAT | O_EXCL | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -3526,8 +3522,7 @@ XLogFileOpen(XLogSegNo segno)
XLogFilePath(path, ThisTimeLineID, segno);
- fd = BasicOpenFile(path, O_RDWR | PG_BINARY | get_sync_bit(sync_method),
- S_IRUSR | S_IWUSR);
+ fd = BasicOpenFile(path, O_RDWR | PG_BINARY |
get_sync_bit(sync_method));
if (fd < 0)
ereport(PANIC,
(errcode_for_file_access(),
@@ -3593,7 +3588,7 @@ XLogFileRead(XLogSegNo segno, int emode, TimeLineID tli,
snprintf(path, MAXPGPATH, XLOGDIR "/%s", xlogfname);
}
- fd = BasicOpenFile(path, O_RDONLY | PG_BINARY, 0);
+ fd = BasicOpenFile(path, O_RDONLY | PG_BINARY);
if (fd >= 0)
{
/* Success! */
@@ -4084,7 +4079,7 @@ ValidateXLOGDirectoryStructure(void)
{
ereport(LOG,
(errmsg("creating missing WAL directory
\"%s\"", path)));
- if (mkdir(path, S_IRWXU) < 0)
+ if (MakeDirectory(path) < 0)
ereport(FATAL,
(errmsg("could not create missing
directory \"%s\": %m",
path)));
@@ -4428,8 +4423,7 @@ WriteControlFile(void)
memcpy(buffer, ControlFile, sizeof(ControlFileData));
fd = BasicOpenFile(XLOG_CONTROL_FILE,
- O_RDWR | O_CREAT | O_EXCL |
PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_RDWR | O_CREAT | O_EXCL |
PG_BINARY);
if (fd < 0)
ereport(PANIC,
(errcode_for_file_access(),
@@ -4472,8 +4466,7 @@ ReadControlFile(void)
* Read data...
*/
fd = BasicOpenFile(XLOG_CONTROL_FILE,
- O_RDWR | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_RDWR | PG_BINARY);
if (fd < 0)
ereport(PANIC,
(errcode_for_file_access(),
@@ -4654,8 +4647,7 @@ UpdateControlFile(void)
FIN_CRC32C(ControlFile->crc);
fd = BasicOpenFile(XLOG_CONTROL_FILE,
- O_RDWR | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_RDWR | PG_BINARY);
if (fd < 0)
ereport(PANIC,
(errcode_for_file_access(),
diff --git a/src/backend/access/transam/xlogutils.c
b/src/backend/access/transam/xlogutils.c
index bbae733d65..0eaba71ea8 100644
--- a/src/backend/access/transam/xlogutils.c
+++ b/src/backend/access/transam/xlogutils.c
@@ -691,7 +691,7 @@ XLogRead(char *buf, TimeLineID tli, XLogRecPtr startptr,
Size count)
XLogFilePath(path, tli, sendSegNo);
- sendFile = BasicOpenFile(path, O_RDONLY | PG_BINARY, 0);
+ sendFile = BasicOpenFile(path, O_RDONLY | PG_BINARY);
if (sendFile < 0)
{
diff --git a/src/backend/catalog/catalog.c b/src/backend/catalog/catalog.c
index 92d943cac7..f50ae3e41d 100644
--- a/src/backend/catalog/catalog.c
+++ b/src/backend/catalog/catalog.c
@@ -444,7 +444,7 @@ GetNewRelFileNode(Oid reltablespace, Relation pg_class,
char relpersistence)
/* Check for existing file of same name */
rpath = relpath(rnode, MAIN_FORKNUM);
- fd = BasicOpenFile(rpath, O_RDONLY | PG_BINARY, 0);
+ fd = BasicOpenFile(rpath, O_RDONLY | PG_BINARY);
if (fd >= 0)
{
diff --git a/src/backend/commands/tablespace.c
b/src/backend/commands/tablespace.c
index 8559c3b6b3..6350f5b459 100644
--- a/src/backend/commands/tablespace.c
+++ b/src/backend/commands/tablespace.c
@@ -151,7 +151,7 @@ TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool
isRedo)
else
{
/* Directory creation failed? */
- if (mkdir(dir, S_IRWXU) < 0)
+ if (MakeDirectory(dir) < 0)
{
char *parentdir;
@@ -173,7 +173,7 @@ TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool
isRedo)
get_parent_directory(parentdir);
get_parent_directory(parentdir);
/* Can't create parent and it doesn't
already exist? */
- if (mkdir(parentdir, S_IRWXU) < 0 &&
errno != EEXIST)
+ if (MakeDirectory(parentdir) < 0 &&
errno != EEXIST)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could
not create directory \"%s\": %m",
@@ -184,7 +184,7 @@ TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool
isRedo)
parentdir = pstrdup(dir);
get_parent_directory(parentdir);
/* Can't create parent and it doesn't
already exist? */
- if (mkdir(parentdir, S_IRWXU) < 0 &&
errno != EEXIST)
+ if (MakeDirectory(parentdir) < 0 &&
errno != EEXIST)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could
not create directory \"%s\": %m",
@@ -192,7 +192,7 @@ TablespaceCreateDbspace(Oid spcNode, Oid dbNode, bool
isRedo)
pfree(parentdir);
/* Create database directory */
- if (mkdir(dir, S_IRWXU) < 0)
+ if (MakeDirectory(dir) < 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could
not create directory \"%s\": %m",
@@ -279,7 +279,7 @@ CreateTableSpace(CreateTableSpaceStmt *stmt)
/*
* Check that location isn't too long. Remember that we're going to
append
* 'PG_XXX/<dboid>/<relid>_<fork>.<nnn>'. FYI, we never actually
- * reference the whole path here, but mkdir() uses the first two parts.
+ * reference the whole path here, but MakeDirectory() uses the first
two parts.
*/
if (strlen(location) + 1 + strlen(TABLESPACE_VERSION_DIRECTORY) + 1 +
OIDCHARS + 1 + OIDCHARS + 1 + FORKNAMECHARS + 1 + OIDCHARS >
MAXPGPATH)
@@ -574,7 +574,7 @@ create_tablespace_directories(const char *location, const
Oid tablespaceoid)
* Attempt to coerce target directory to safe permissions. If this
fails,
* it doesn't exist or has the wrong owner.
*/
- if (chmod(location, S_IRWXU) != 0)
+ if (chmod(location, PG_DIR_MODE_DEFAULT) != 0)
{
if (errno == ENOENT)
ereport(ERROR,
@@ -599,7 +599,7 @@ create_tablespace_directories(const char *location, const
Oid tablespaceoid)
if (stat(location_with_version_dir, &st) == 0 &&
S_ISDIR(st.st_mode))
{
if (!rmtree(location_with_version_dir, true))
- /* If this failed, mkdir() below is going to
error. */
+ /* If this failed, MakeDirectory() below is
going to error. */
ereport(WARNING,
(errmsg("some useless files may
be left behind in old database directory \"%s\"",
location_with_version_dir)));
@@ -610,7 +610,7 @@ create_tablespace_directories(const char *location, const
Oid tablespaceoid)
* The creation of the version directory prevents more than one
tablespace
* in a single location.
*/
- if (mkdir(location_with_version_dir, S_IRWXU) < 0)
+ if (MakeDirectory(location_with_version_dir) < 0)
{
if (errno == EEXIST)
ereport(ERROR,
diff --git a/src/backend/libpq/be-fsstubs.c b/src/backend/libpq/be-fsstubs.c
index bf45461b2f..e433446922 100644
--- a/src/backend/libpq/be-fsstubs.c
+++ b/src/backend/libpq/be-fsstubs.c
@@ -462,7 +462,7 @@ lo_import_internal(text *filename, Oid lobjOid)
* open the file to be read in
*/
text_to_cstring_buffer(filename, fnamebuf, sizeof(fnamebuf));
- fd = OpenTransientFile(fnamebuf, O_RDONLY | PG_BINARY, S_IRWXU);
+ fd = OpenTransientFile(fnamebuf, O_RDONLY | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -531,16 +531,9 @@ be_lo_export(PG_FUNCTION_ARGS)
/*
* open the file to be written to
- *
- * Note: we reduce backend's normal 077 umask to the slightly friendlier
- * 022. This code used to drop it all the way to 0, but creating
- * world-writable export files doesn't seem wise.
*/
text_to_cstring_buffer(filename, fnamebuf, sizeof(fnamebuf));
- oumask = umask(S_IWGRP | S_IWOTH);
- fd = OpenTransientFile(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC |
PG_BINARY,
- S_IRUSR | S_IWUSR | S_IRGRP
| S_IROTH);
- umask(oumask);
+ fd = OpenTransientFile(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC |
PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -563,6 +556,18 @@ be_lo_export(PG_FUNCTION_ARGS)
CloseTransientFile(fd);
inv_close(lobj);
+ /*
+ * Allow group read. This code used make export files world-writable
but that
+ * doesn't seem wise.
+ */
+ if (chmod(fnamebuf, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) != 0)
+ {
+ ereport(ERROR,
+ (errcode_for_file_access(),
+ errmsg("could not set permissions on
server file \"%s\": %m",
+ fnamebuf)));
+ }
+
PG_RETURN_INT32(1);
}
diff --git a/src/backend/postmaster/postmaster.c
b/src/backend/postmaster/postmaster.c
index 95180b2ef5..11d00b854a 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -4440,7 +4440,7 @@ internal_forkexec(int argc, char *argv[], Port *port)
* As in OpenTemporaryFileInTablespace, try to make the
temp-file
* directory
*/
- mkdir(PG_TEMP_FILES_DIR, S_IRWXU);
+ MakeDirectory(PG_TEMP_FILES_DIR);
fp = AllocateFile(tmpfilename, PG_BINARY_W);
if (!fp)
diff --git a/src/backend/postmaster/syslogger.c
b/src/backend/postmaster/syslogger.c
index 3255b42c7d..f58fe8e8f1 100644
--- a/src/backend/postmaster/syslogger.c
+++ b/src/backend/postmaster/syslogger.c
@@ -41,6 +41,7 @@
#include "postmaster/postmaster.h"
#include "postmaster/syslogger.h"
#include "storage/dsm.h"
+#include "storage/fd.h"
#include "storage/ipc.h"
#include "storage/latch.h"
#include "storage/pg_shmem.h"
@@ -322,7 +323,7 @@ SysLoggerMain(int argc, char *argv[])
/*
* Also, create new directory if not present;
ignore errors
*/
- mkdir(Log_directory, S_IRWXU);
+ MakeDirectory(Log_directory);
}
if (strcmp(Log_filename, currentLogFilename) != 0)
{
@@ -564,7 +565,7 @@ SysLogger_Start(void)
/*
* Create log directory if not present; ignore errors
*/
- mkdir(Log_directory, S_IRWXU);
+ MakeDirectory(Log_directory);
/*
* The initial logfile is created right in the postmaster, to verify
that
diff --git a/src/backend/replication/logical/origin.c
b/src/backend/replication/logical/origin.c
index edc6efb8a6..edd539aa7a 100644
--- a/src/backend/replication/logical/origin.c
+++ b/src/backend/replication/logical/origin.c
@@ -547,8 +547,7 @@ CheckPointReplicationOrigin(void)
* CheckpointLock.
*/
tmpfd = OpenTransientFile((char *) tmppath,
- O_CREAT | O_EXCL |
O_WRONLY | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_CREAT | O_EXCL |
O_WRONLY | PG_BINARY);
if (tmpfd < 0)
ereport(PANIC,
(errcode_for_file_access(),
@@ -660,7 +659,7 @@ StartupReplicationOrigin(void)
elog(DEBUG2, "starting up replication origin progress state");
- fd = OpenTransientFile((char *) path, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile((char *) path, O_RDONLY | PG_BINARY);
/*
* might have had max_replication_slots == 0 last run, or we just
brought
diff --git a/src/backend/replication/logical/reorderbuffer.c
b/src/backend/replication/logical/reorderbuffer.c
index 657bafae57..98266e0613 100644
--- a/src/backend/replication/logical/reorderbuffer.c
+++ b/src/backend/replication/logical/reorderbuffer.c
@@ -2103,8 +2103,7 @@ ReorderBufferSerializeTXN(ReorderBuffer *rb,
ReorderBufferTXN *txn)
/* open segment, create it if necessary */
fd = OpenTransientFile(path,
- O_CREAT |
O_WRONLY | O_APPEND | PG_BINARY,
- S_IRUSR |
S_IWUSR);
+ O_CREAT |
O_WRONLY | O_APPEND | PG_BINARY);
if (fd < 0)
ereport(ERROR,
@@ -2348,7 +2347,7 @@ ReorderBufferRestoreChanges(ReorderBuffer *rb,
ReorderBufferTXN *txn,
NameStr(MyReplicationSlot->data.name),
txn->xid,
(uint32) (recptr >> 32), (uint32)
recptr);
- *fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
+ *fd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (*fd < 0 && errno == ENOENT)
{
*fd = -1;
@@ -3037,7 +3036,7 @@ ApplyLogicalMappingFile(HTAB *tuplecid_data, Oid relid,
const char *fname)
LogicalRewriteMappingData map;
sprintf(path, "pg_logical/mappings/%s", fname);
- fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/backend/replication/logical/snapbuild.c
b/src/backend/replication/logical/snapbuild.c
index fba57a0470..ad65b9831d 100644
--- a/src/backend/replication/logical/snapbuild.c
+++ b/src/backend/replication/logical/snapbuild.c
@@ -1597,8 +1597,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn)
/* we have valid data now, open tempfile and write it there */
fd = OpenTransientFile(tmppath,
- O_CREAT | O_EXCL | O_WRONLY
| PG_BINARY,
- S_IRUSR | S_IWUSR);
+ O_CREAT | O_EXCL | O_WRONLY
| PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errmsg("could not open file \"%s\": %m",
path)));
@@ -1682,7 +1681,7 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn)
sprintf(path, "pg_logical/snapshots/%X-%X.snap",
(uint32) (lsn >> 32), (uint32) lsn);
- fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (fd < 0 && errno == ENOENT)
return false;
diff --git a/src/backend/replication/slot.c b/src/backend/replication/slot.c
index a8a16f55e9..f44e2e0d8f 100644
--- a/src/backend/replication/slot.c
+++ b/src/backend/replication/slot.c
@@ -1166,13 +1166,13 @@ CreateSlotOnDisk(ReplicationSlot *slot)
* It's just barely possible that some previous effort to create or
drop a
* slot with this name left a temp directory lying around. If that seems
* to be the case, try to remove it. If the rmtree() fails, we'll error
- * out at the mkdir() below, so we don't bother checking success.
+ * out at the MakeDirectory() below, so we don't bother checking
success.
*/
if (stat(tmppath, &st) == 0 && S_ISDIR(st.st_mode))
rmtree(tmppath, true);
/* Create and fsync the temporary slot directory. */
- if (mkdir(tmppath, S_IRWXU) < 0)
+ if (MakeDirectory(tmppath) < 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not create directory \"%s\": %m",
@@ -1233,9 +1233,7 @@ SaveSlotToPath(ReplicationSlot *slot, const char *dir,
int elevel)
sprintf(tmppath, "%s/state.tmp", dir);
sprintf(path, "%s/state", dir);
- fd = OpenTransientFile(tmppath,
- O_CREAT | O_EXCL | O_WRONLY
| PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(tmppath, O_CREAT | O_EXCL | O_WRONLY |
PG_BINARY);
if (fd < 0)
{
ereport(elevel,
@@ -1354,7 +1352,7 @@ RestoreSlotFromDisk(const char *name)
elog(DEBUG1, "restoring replication slot from \"%s\"", path);
- fd = OpenTransientFile(path, O_RDWR | PG_BINARY, 0);
+ fd = OpenTransientFile(path, O_RDWR | PG_BINARY);
/*
* We do not need to handle this as we are rename()ing the directory
into
diff --git a/src/backend/replication/walsender.c
b/src/backend/replication/walsender.c
index 1fbe8ed71b..b3b1cc8d49 100644
--- a/src/backend/replication/walsender.c
+++ b/src/backend/replication/walsender.c
@@ -472,7 +472,7 @@ SendTimeLineHistory(TimeLineHistoryCmd *cmd)
pq_sendint(&buf, len, 4); /* col1 len */
pq_sendbytes(&buf, histfname, len);
- fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0666);
+ fd = OpenTransientFile(path, O_RDONLY | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
@@ -2366,7 +2366,7 @@ retry:
XLogFilePath(path, curFileTimeLine, sendSegNo);
- sendFile = BasicOpenFile(path, O_RDONLY | PG_BINARY, 0);
+ sendFile = BasicOpenFile(path, O_RDONLY | PG_BINARY);
if (sendFile < 0)
{
/*
diff --git a/src/backend/storage/file/copydir.c
b/src/backend/storage/file/copydir.c
index 1e2691685a..f3d2b003aa 100644
--- a/src/backend/storage/file/copydir.c
+++ b/src/backend/storage/file/copydir.c
@@ -41,7 +41,7 @@ copydir(char *fromdir, char *todir, bool recurse)
char fromfile[MAXPGPATH * 2];
char tofile[MAXPGPATH * 2];
- if (mkdir(todir, S_IRWXU) != 0)
+ if (MakeDirectory(todir) != 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not create directory \"%s\":
%m", todir)));
@@ -148,14 +148,13 @@ copy_file(char *fromfile, char *tofile)
/*
* Open the files
*/
- srcfd = OpenTransientFile(fromfile, O_RDONLY | PG_BINARY, 0);
+ srcfd = OpenTransientFile(fromfile, O_RDONLY | PG_BINARY);
if (srcfd < 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not open file \"%s\": %m",
fromfile)));
- dstfd = OpenTransientFile(tofile, O_RDWR | O_CREAT | O_EXCL | PG_BINARY,
- S_IRUSR | S_IWUSR);
+ dstfd = OpenTransientFile(tofile, O_RDWR | O_CREAT | O_EXCL |
PG_BINARY);
if (dstfd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c
index 83b061a036..e47fdceedd 100644
--- a/src/backend/storage/file/fd.c
+++ b/src/backend/storage/file/fd.c
@@ -604,7 +604,7 @@ durable_rename(const char *oldfile, const char *newfile,
int elevel)
if (fsync_fname_ext(oldfile, false, false, elevel) != 0)
return -1;
- fd = OpenTransientFile((char *) newfile, PG_BINARY | O_RDWR, 0);
+ fd = OpenTransientFile((char *) newfile, PG_BINARY | O_RDWR);
if (fd < 0)
{
if (errno != ENOENT)
@@ -917,6 +917,16 @@ set_max_safe_fds(void)
}
/*
+ * Open a file with BasicOpenFilePerm() and pass PG_FILE_MODE_DEFAULT to the
+ * fileMode parameter.
+ */
+int
+BasicOpenFile(FileName fileName, int fileFlags)
+{
+ return BasicOpenFilePerm(fileName, fileFlags, PG_FILE_MODE_DEFAULT);
+}
+
+/*
* BasicOpenFile --- same as open(2) except can free other FDs if needed
*
* This is exported for use by places that really want a plain kernel FD,
@@ -933,7 +943,7 @@ set_max_safe_fds(void)
* this module wouldn't have any open files to close at that point anyway.
*/
int
-BasicOpenFile(FileName fileName, int fileFlags, int fileMode)
+BasicOpenFilePerm(FileName fileName, int fileFlags, int fileMode)
{
int fd;
@@ -1084,8 +1094,8 @@ LruInsert(File file)
* overall system file table being full. So, be prepared to
release
* another FD if necessary...
*/
- vfdP->fd = BasicOpenFile(vfdP->fileName, vfdP->fileFlags,
-
vfdP->fileMode);
+ vfdP->fd = BasicOpenFilePerm(vfdP->fileName, vfdP->fileFlags,
+
vfdP->fileMode);
if (vfdP->fd < 0)
{
DO_DB(elog(LOG, "re-open failed: %m"));
@@ -1293,6 +1303,16 @@ FileInvalidate(File file)
#endif
/*
+ * Open a file with PathNameOpenFilePerm() and pass PG_FILE_MODE_DEFAULT to the
+ * fileMode parameter.
+ */
+File
+PathNameOpenFile(FileName fileName, int fileFlags)
+{
+ return PathNameOpenFilePerm(fileName, fileFlags, PG_FILE_MODE_DEFAULT);
+}
+
+/*
* open a file in an arbitrary directory
*
* NB: if the passed pathname is relative (which it usually is),
@@ -1300,13 +1320,13 @@ FileInvalidate(File file)
* (which should always be $PGDATA when this code is running).
*/
File
-PathNameOpenFile(FileName fileName, int fileFlags, int fileMode)
+PathNameOpenFilePerm(FileName fileName, int fileFlags, int fileMode)
{
char *fnamecopy;
File file;
Vfd *vfdP;
- DO_DB(elog(LOG, "PathNameOpenFile: %s %x %o",
+ DO_DB(elog(LOG, "PathNameOpenFilePerm: %s %x %o",
fileName, fileFlags, fileMode));
/*
@@ -1324,7 +1344,7 @@ PathNameOpenFile(FileName fileName, int fileFlags, int
fileMode)
/* Close excess kernel FDs. */
ReleaseLruFiles();
- vfdP->fd = BasicOpenFile(fileName, fileFlags, fileMode);
+ vfdP->fd = BasicOpenFilePerm(fileName, fileFlags, fileMode);
if (vfdP->fd < 0)
{
@@ -1461,23 +1481,21 @@ OpenTemporaryFileInTablespace(Oid tblspcOid, bool
rejectError)
* temp file that can be reused.
*/
file = PathNameOpenFile(tempfilepath,
- O_RDWR | O_CREAT |
O_TRUNC | PG_BINARY,
- 0600);
+ O_RDWR | O_CREAT |
O_TRUNC | PG_BINARY);
if (file <= 0)
{
/*
* We might need to create the tablespace's tempfile directory,
if no
* one has yet done so.
*
- * Don't check for error from mkdir; it could fail if someone
else
+ * Don't check for error from MakeDirectory; it could fail if
someone else
* just did the same thing. If it doesn't work then we'll bomb
out on
* the second create attempt, instead.
*/
- mkdir(tempdirpath, S_IRWXU);
+ MakeDirectory(tempdirpath);
file = PathNameOpenFile(tempfilepath,
- O_RDWR |
O_CREAT | O_TRUNC | PG_BINARY,
- 0600);
+ O_RDWR |
O_CREAT | O_TRUNC | PG_BINARY);
if (file <= 0 && rejectError)
elog(ERROR, "could not create temporary file \"%s\":
%m",
tempfilepath);
@@ -2136,12 +2154,21 @@ TryAgain:
return NULL;
}
+/*
+ * Open a file with OpenTransientFilePerm() and pass PG_FILE_MODE_DEFAULT to
+ * the fileMode parameter.
+ */
+int
+OpenTransientFile(FileName fileName, int fileFlags)
+{
+ return OpenTransientFilePerm(fileName, fileFlags, PG_FILE_MODE_DEFAULT);
+}
/*
* Like AllocateFile, but returns an unbuffered fd like open(2)
*/
int
-OpenTransientFile(FileName fileName, int fileFlags, int fileMode)
+OpenTransientFilePerm(FileName fileName, int fileFlags, int fileMode)
{
int fd;
@@ -2158,7 +2185,7 @@ OpenTransientFile(FileName fileName, int fileFlags, int
fileMode)
/* Close excess kernel FDs. */
ReleaseLruFiles();
- fd = BasicOpenFile(fileName, fileFlags, fileMode);
+ fd = BasicOpenFilePerm(fileName, fileFlags, fileMode);
if (fd >= 0)
{
@@ -3081,7 +3108,7 @@ pre_sync_fname(const char *fname, bool isdir, int elevel)
if (isdir)
return;
- fd = OpenTransientFile((char *) fname, O_RDONLY | PG_BINARY, 0);
+ fd = OpenTransientFile((char *) fname, O_RDONLY | PG_BINARY);
if (fd < 0)
{
@@ -3141,7 +3168,7 @@ fsync_fname_ext(const char *fname, bool isdir, bool
ignore_perm, int elevel)
else
flags |= O_RDONLY;
- fd = OpenTransientFile((char *) fname, flags, 0);
+ fd = OpenTransientFile((char *) fname, flags);
/*
* Some OSs don't allow us to open directories at all (Windows returns
@@ -3213,3 +3240,22 @@ fsync_parent_path(const char *fname, int elevel)
return 0;
}
+
+/*
+ * Create a directory with MakeDirectoryPerm() and pass PG_DIR_MODE_DEFAULT to
+ * the directoryMode parameter.
+ */
+int
+MakeDirectory(const char *directoryName)
+{
+ return MakeDirectoryPerm(directoryName, PG_DIR_MODE_DEFAULT);
+}
+
+/*
+ * Create a directory with the specified mode.
+ */
+int
+MakeDirectoryPerm(const char *directoryName, int directoryMode)
+{
+ return mkdir(directoryName, directoryMode);
+}
diff --git a/src/backend/storage/ipc/dsm_impl.c
b/src/backend/storage/ipc/dsm_impl.c
index 1500465d31..3cf34dbc4f 100644
--- a/src/backend/storage/ipc/dsm_impl.c
+++ b/src/backend/storage/ipc/dsm_impl.c
@@ -835,7 +835,7 @@ dsm_impl_mmap(dsm_op op, dsm_handle handle, Size
request_size,
/* Create new segment or open an existing one for attach or resize. */
flags = O_RDWR | (op == DSM_OP_CREATE ? O_CREAT | O_EXCL : 0);
- if ((fd = OpenTransientFile(name, flags, 0600)) == -1)
+ if ((fd = OpenTransientFilePerm(name, flags, S_IRUSR | S_IWUSR)) == -1)
{
if (errno != EEXIST)
ereport(elevel,
diff --git a/src/backend/storage/ipc/ipc.c b/src/backend/storage/ipc/ipc.c
index dfb47e7c39..f3c9d9f2d3 100644
--- a/src/backend/storage/ipc/ipc.c
+++ b/src/backend/storage/ipc/ipc.c
@@ -132,8 +132,8 @@ proc_exit(int code)
else
snprintf(gprofDirName, 32, "gprof/%d", (int) getpid());
- mkdir("gprof", S_IRWXU | S_IRWXG | S_IRWXO);
- mkdir(gprofDirName, S_IRWXU | S_IRWXG | S_IRWXO);
+ MakeDirectoryPerm("gprof", S_IRWXU | S_IRWXG | S_IRWXO);
+ MakeDirectoryPerm(gprofDirName, S_IRWXU | S_IRWXG | S_IRWXO);
chdir(gprofDirName);
}
#endif
diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c
index 65e0abe9ec..64a4ccf0db 100644
--- a/src/backend/storage/smgr/md.c
+++ b/src/backend/storage/smgr/md.c
@@ -304,7 +304,7 @@ mdcreate(SMgrRelation reln, ForkNumber forkNum, bool isRedo)
path = relpath(reln->smgr_rnode, forkNum);
- fd = PathNameOpenFile(path, O_RDWR | O_CREAT | O_EXCL | PG_BINARY,
0600);
+ fd = PathNameOpenFile(path, O_RDWR | O_CREAT | O_EXCL | PG_BINARY);
if (fd < 0)
{
@@ -317,7 +317,7 @@ mdcreate(SMgrRelation reln, ForkNumber forkNum, bool isRedo)
* already, even if isRedo is not set. (See also mdopen)
*/
if (isRedo || IsBootstrapProcessingMode())
- fd = PathNameOpenFile(path, O_RDWR | PG_BINARY, 0600);
+ fd = PathNameOpenFile(path, O_RDWR | PG_BINARY);
if (fd < 0)
{
/* be sure to report the error reported by create, not
open */
@@ -430,7 +430,7 @@ mdunlinkfork(RelFileNodeBackend rnode, ForkNumber forkNum,
bool isRedo)
/* truncate(2) would be easier here, but Windows hasn't got it
*/
int fd;
- fd = OpenTransientFile(path, O_RDWR | PG_BINARY, 0);
+ fd = OpenTransientFile(path, O_RDWR | PG_BINARY);
if (fd >= 0)
{
int save_errno;
@@ -583,7 +583,7 @@ mdopen(SMgrRelation reln, ForkNumber forknum, int behavior)
path = relpath(reln->smgr_rnode, forknum);
- fd = PathNameOpenFile(path, O_RDWR | PG_BINARY, 0600);
+ fd = PathNameOpenFile(path, O_RDWR | PG_BINARY);
if (fd < 0)
{
@@ -594,7 +594,7 @@ mdopen(SMgrRelation reln, ForkNumber forknum, int behavior)
* substitute for mdcreate() in bootstrap mode only. (See
mdcreate)
*/
if (IsBootstrapProcessingMode())
- fd = PathNameOpenFile(path, O_RDWR | O_CREAT | O_EXCL |
PG_BINARY, 0600);
+ fd = PathNameOpenFile(path, O_RDWR | O_CREAT | O_EXCL |
PG_BINARY);
if (fd < 0)
{
if ((behavior & EXTENSION_RETURN_NULL) &&
@@ -1780,7 +1780,7 @@ _mdfd_openseg(SMgrRelation reln, ForkNumber forknum,
BlockNumber segno,
fullpath = _mdfd_segpath(reln, forknum, segno);
/* open the file */
- fd = PathNameOpenFile(fullpath, O_RDWR | PG_BINARY | oflags, 0600);
+ fd = PathNameOpenFile(fullpath, O_RDWR | PG_BINARY | oflags);
pfree(fullpath);
diff --git a/src/backend/utils/cache/relmapper.c
b/src/backend/utils/cache/relmapper.c
index f5394dc43d..41c2ba7f97 100644
--- a/src/backend/utils/cache/relmapper.c
+++ b/src/backend/utils/cache/relmapper.c
@@ -644,8 +644,7 @@ load_relmap_file(bool shared)
}
/* Read data ... */
- fd = OpenTransientFile(mapfilename,
- O_RDONLY | PG_BINARY,
S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(mapfilename, O_RDONLY | PG_BINARY);
if (fd < 0)
ereport(FATAL,
(errcode_for_file_access(),
@@ -745,9 +744,7 @@ write_relmap_file(bool shared, RelMapFile *newmap,
realmap = &local_map;
}
- fd = OpenTransientFile(mapfilename,
- O_WRONLY | O_CREAT |
PG_BINARY,
- S_IRUSR | S_IWUSR);
+ fd = OpenTransientFile(mapfilename, O_WRONLY | O_CREAT | PG_BINARY);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index bc9f09a086..e520fbace9 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -7244,8 +7244,7 @@ AlterSystemSetConfigFile(AlterSystemStmt *altersysstmt)
* truncate and reuse it.
*/
Tmpfd = BasicOpenFile(AutoConfTmpFileName,
- O_CREAT | O_RDWR | O_TRUNC,
- S_IRUSR | S_IWUSR);
+ O_CREAT | O_RDWR | O_TRUNC);
if (Tmpfd < 0)
ereport(ERROR,
(errcode_for_file_access(),
diff --git a/src/include/storage/fd.h b/src/include/storage/fd.h
index faef39e78d..6a7b6121e9 100644
--- a/src/include/storage/fd.h
+++ b/src/include/storage/fd.h
@@ -22,7 +22,7 @@
* Use them for all file activity...
*
* File fd;
- * fd = PathNameOpenFile("foo", O_RDONLY, 0600);
+ * fd = PathNameOpenFile("foo", O_RDONLY);
*
* AllocateFile();
* FreeFile();
@@ -59,13 +59,17 @@ extern int max_files_per_process;
*/
extern int max_safe_fds;
+/* Define default file/directory modes. */
+#define PG_FILE_MODE_DEFAULT (S_IRUSR | S_IWUSR)
+#define PG_DIR_MODE_DEFAULT (S_IRWXU)
/*
* prototypes for functions in fd.c
*/
/* Operations on virtual Files --- equivalent to Unix kernel file ops */
-extern File PathNameOpenFile(FileName fileName, int fileFlags, int fileMode);
+extern File PathNameOpenFile(FileName fileName, int fileFlags);
+extern File PathNameOpenFilePerm(FileName fileName, int fileFlags, int
fileMode);
extern File OpenTemporaryFile(bool interXact);
extern void FileClose(File file);
extern int FilePrefetch(File file, off_t offset, int amount, uint32
wait_event_info);
@@ -94,11 +98,17 @@ extern struct dirent *ReadDir(DIR *dir, const char
*dirname);
extern int FreeDir(DIR *dir);
/* Operations to allow use of a plain kernel FD, with automatic cleanup */
-extern int OpenTransientFile(FileName fileName, int fileFlags, int
fileMode);
+extern int OpenTransientFile(FileName fileName, int fileFlags);
+extern int OpenTransientFilePerm(FileName fileName, int fileFlags, int
fileMode);
extern int CloseTransientFile(int fd);
/* If you've really really gotta have a plain kernel FD, use this */
-extern int BasicOpenFile(FileName fileName, int fileFlags, int fileMode);
+extern int BasicOpenFile(FileName fileName, int fileFlags);
+extern int BasicOpenFilePerm(FileName fileName, int fileFlags, int
fileMode);
+
+/* Operations to make directories */
+extern int MakeDirectory(const char *directoryName);
+extern int MakeDirectoryPerm(const char *directoryName, int directoryMode);
/* Miscellaneous support routines */
extern void InitFileAccess(void);
--
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