Tom Lane wrote:
> Itagaki Takahiro <itagaki.takah...@gmail.com> writes:
>> ...
>> We should also check the value not to be something like 0699.
>> How about checking it with (file_mode & ~0666) != 0 ?
>> ...
>> I want show_log_file_mode to print the setting value in octal format.
>
> It seems like a whole lot of lily-gilding is going on here. Just make
> it work like unix_socket_permissions already does. That's been there
> for years and nobody has complained about it.
>
Thanks, somehow I missed that we can already specify octal integers
as GUC-s. I now converted the log_file_mode to integer and dropped
the assign_log_file_mode function.
regards,
Martin
*** a/doc/src/sgml/config.sgml
--- b/doc/src/sgml/config.sgml
***************
*** 2789,2794 **** local0.* /var/log/postgresql
--- 2789,2817 ----
</listitem>
</varlistentry>
+ <varlistentry id="guc-log-file-mode" xreflabel="log_file_mode">
+ <term><varname>log_file_mode</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>log_file_mode</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ On Unix systems this parameter sets the permissions for log files
+ when <varname>logging_collector</varname> is enabled. On Microsoft
+ Windows the file mode will be ignored.
+ The parameter value is expected to be a numeric mode
+ specified in the format accepted by the
+ <function>chmod</function> and <function>umask</function>
+ system calls. (To use the customary octal format the number
+ must start with a <literal>0</literal> (zero).)
+ </para>
+ <para>
+ This parameter can only be set in the <filename>postgresql.conf</>
+ file or on the server command line.
+ </para>
+ </listitem>
+ </varlistentry>
+
<varlistentry id="guc-log-rotation-age" xreflabel="log_rotation_age">
<term><varname>log_rotation_age</varname> (<type>integer</type>)</term>
<indexterm>
*** a/src/backend/postmaster/syslogger.c
--- b/src/backend/postmaster/syslogger.c
***************
*** 73,78 **** int Log_RotationSize = 10 * 1024;
--- 73,79 ----
char *Log_directory = NULL;
char *Log_filename = NULL;
bool Log_truncate_on_rotation = false;
+ int Log_file_mode = 0600;
/*
* Globally visible state (used by elog.c)
***************
*** 135,140 **** static void syslogger_parseArgs(int argc, char *argv[]);
--- 136,142 ----
static void process_pipe_input(char *logbuffer, int *bytes_in_logbuffer);
static void flush_pipe_input(char *logbuffer, int *bytes_in_logbuffer);
static void open_csvlogfile(void);
+ static FILE *logfile_open(const char *filename, const char *mode, bool am_rotating);
#ifdef WIN32
static unsigned int __stdcall pipeThread(void *arg);
***************
*** 516,530 **** SysLogger_Start(void)
*/
filename = logfile_getname(time(NULL), NULL);
! syslogFile = fopen(filename, "a");
!
! if (!syslogFile)
! ereport(FATAL,
! (errcode_for_file_access(),
! (errmsg("could not create log file \"%s\": %m",
! filename))));
!
! setvbuf(syslogFile, NULL, LBF_MODE, 0);
pfree(filename);
--- 518,524 ----
*/
filename = logfile_getname(time(NULL), NULL);
! syslogFile = logfile_open(filename, "a", false);
pfree(filename);
***************
*** 1004,1027 **** open_csvlogfile(void)
filename = logfile_getname(time(NULL), ".csv");
! fh = fopen(filename, "a");
! if (!fh)
! ereport(FATAL,
! (errcode_for_file_access(),
! (errmsg("could not create log file \"%s\": %m",
! filename))));
! setvbuf(fh, NULL, LBF_MODE, 0);
! #ifdef WIN32
! _setmode(_fileno(fh), _O_TEXT); /* use CRLF line endings on Windows */
! #endif
! csvlogFile = fh;
! pfree(filename);
}
/*
--- 998,1050 ----
filename = logfile_getname(time(NULL), ".csv");
! fh = logfile_open(filename, "a", false);
! csvlogFile = fh;
! pfree(filename);
! }
! /*
! * Open the logfile with proper permissions and buffering options.
! *
! * We ignore any errors if the logfile is opened as part of log rotation. In
! * other cases the errors are treated as fatal.
! */
! static FILE *
! logfile_open(const char *filename, const char *mode, bool am_rotating)
! {
! mode_t oumask;
! FILE *fh;
! oumask = umask((mode_t) (~Log_file_mode & 0777));
! fh = fopen(filename, mode);
! umask(oumask);
!
! if (fh)
! {
! setvbuf(fh, NULL, LBF_MODE, 0);
!
! #ifdef WIN32
! _setmode(_fileno(fh), _O_TEXT); /* use CRLF line endings on Windows */
! #endif
! }
! else
! {
! if (am_rotating)
! ereport(LOG,
! (errcode_for_file_access(),
! errmsg("could not create new log file \"%s\": %m",
! filename)));
! else
! ereport(FATAL,
! (errcode_for_file_access(),
! errmsg("could not create log file \"%s\": %m",
! filename)));
! }
+ return fh;
}
/*
***************
*** 1070,1088 **** logfile_rotate(bool time_based_rotation, int size_rotation_for)
if (Log_truncate_on_rotation && time_based_rotation &&
last_file_name != NULL &&
strcmp(filename, last_file_name) != 0)
! fh = fopen(filename, "w");
else
! fh = fopen(filename, "a");
if (!fh)
{
int saveerrno = errno;
- ereport(LOG,
- (errcode_for_file_access(),
- errmsg("could not open new log file \"%s\": %m",
- filename)));
-
/*
* ENFILE/EMFILE are not too surprising on a busy system; just
* keep using the old file till we manage to get a new one.
--- 1093,1106 ----
if (Log_truncate_on_rotation && time_based_rotation &&
last_file_name != NULL &&
strcmp(filename, last_file_name) != 0)
! fh = logfile_open(filename, "w", true);
else
! fh = logfile_open(filename, "a", true);
if (!fh)
{
int saveerrno = errno;
/*
* ENFILE/EMFILE are not too surprising on a busy system; just
* keep using the old file till we manage to get a new one.
***************
*** 1104,1115 **** logfile_rotate(bool time_based_rotation, int size_rotation_for)
return;
}
- setvbuf(fh, NULL, LBF_MODE, 0);
-
- #ifdef WIN32
- _setmode(_fileno(fh), _O_TEXT); /* use CRLF line endings on Windows */
- #endif
-
fclose(syslogFile);
syslogFile = fh;
--- 1122,1127 ----
***************
*** 1128,1146 **** logfile_rotate(bool time_based_rotation, int size_rotation_for)
if (Log_truncate_on_rotation && time_based_rotation &&
last_csv_file_name != NULL &&
strcmp(csvfilename, last_csv_file_name) != 0)
! fh = fopen(csvfilename, "w");
else
! fh = fopen(csvfilename, "a");
if (!fh)
{
int saveerrno = errno;
- ereport(LOG,
- (errcode_for_file_access(),
- errmsg("could not open new log file \"%s\": %m",
- csvfilename)));
-
/*
* ENFILE/EMFILE are not too surprising on a busy system; just
* keep using the old file till we manage to get a new one.
--- 1140,1153 ----
if (Log_truncate_on_rotation && time_based_rotation &&
last_csv_file_name != NULL &&
strcmp(csvfilename, last_csv_file_name) != 0)
! fh = logfile_open(csvfilename, "w", true);
else
! fh = logfile_open(csvfilename, "a", true);
if (!fh)
{
int saveerrno = errno;
/*
* ENFILE/EMFILE are not too surprising on a busy system; just
* keep using the old file till we manage to get a new one.
***************
*** 1162,1173 **** logfile_rotate(bool time_based_rotation, int size_rotation_for)
return;
}
- setvbuf(fh, NULL, LBF_MODE, 0);
-
- #ifdef WIN32
- _setmode(_fileno(fh), _O_TEXT); /* use CRLF line endings on Windows */
- #endif
-
fclose(csvlogFile);
csvlogFile = fh;
--- 1169,1174 ----
*** a/src/backend/utils/misc/guc.c
--- b/src/backend/utils/misc/guc.c
***************
*** 174,179 **** static bool assign_autovacuum_max_workers(int newval, bool doit, GucSource sourc
--- 174,180 ----
static bool assign_effective_io_concurrency(int newval, bool doit, GucSource source);
static const char *assign_pgstat_temp_directory(const char *newval, bool doit, GucSource source);
static const char *assign_application_name(const char *newval, bool doit, GucSource source);
+ static const char *show_log_file_mode(void);
static char *config_enum_get_options(struct config_enum * record,
const char *prefix, const char *suffix,
***************
*** 2068,2073 **** static struct config_int ConfigureNamesInt[] =
--- 2069,2083 ----
1024, 100, 102400, NULL, NULL
},
+ {
+ {"log_file_mode", PGC_SIGHUP, LOGGING_WHERE,
+ gettext_noop("Sets the file permissions for log files."),
+ NULL
+ },
+ &Log_file_mode,
+ 0600, 0000, 0777, NULL, show_log_file_mode
+ },
+
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL
***************
*** 8072,8075 **** assign_application_name(const char *newval, bool doit, GucSource source)
--- 8082,8094 ----
return newval;
}
+ static const char *
+ show_log_file_mode(void)
+ {
+ static char buf[5];
+
+ snprintf(buf, sizeof(buf), "%04o", Log_file_mode);
+ return buf;
+ }
+
#include "guc-file.c"
*** a/src/backend/utils/misc/postgresql.conf.sample
--- b/src/backend/utils/misc/postgresql.conf.sample
***************
*** 265,270 ****
--- 265,272 ----
# can be absolute or relative to PGDATA
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
# can include strftime() escapes
+ #log_file_mode = 0600 # creation mode for log files,
+ # begin with 0 to use octal notation
#log_truncate_on_rotation = off # If on, an existing log file of the
# same name as the new log file will be
# truncated rather than appended to.
*** a/src/include/postmaster/syslogger.h
--- b/src/include/postmaster/syslogger.h
***************
*** 68,73 **** extern int Log_RotationSize;
--- 68,74 ----
extern PGDLLIMPORT char *Log_directory;
extern PGDLLIMPORT char *Log_filename;
extern bool Log_truncate_on_rotation;
+ extern int Log_file_mode;
extern bool am_syslogger;
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