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Pass a strdup'd ident string to openlog(), to ensure that reallocation

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of GUC memory doesn't cause us to start emitting a bogus ident string.
Per report from Han Holl.  Also some trivial code cleanup in write_syslog.
This commit is contained in:
Tom Lane
2005-10-14 16:41:28 +00:00
parent e257f28db0
commit a4baf229a4
1 changed files with 8 additions and 3 deletions
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11
src/backend/utils/error/elog.c
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@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.125 2003/10/17 16:49:03 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/error/elog.c,v 1.125.2.1 2005/10/14 16:41:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -923,7 +923,6 @@ write_syslog(int level, const char *line)
{
static bool openlog_done = false;
static unsigned long seq = 0;
static int syslog_fac = LOG_LOCAL0;
int len = strlen(line);
@ -932,6 +931,9 @@ write_syslog(int level, const char *line)
if (!openlog_done)
{
int syslog_fac = LOG_LOCAL0;
char *syslog_ident;
if (strcasecmp(Syslog_facility, "LOCAL0") == 0)
syslog_fac = LOG_LOCAL0;
if (strcasecmp(Syslog_facility, "LOCAL1") == 0)
@ -948,7 +950,10 @@ write_syslog(int level, const char *line)
syslog_fac = LOG_LOCAL6;
if (strcasecmp(Syslog_facility, "LOCAL7") == 0)
syslog_fac = LOG_LOCAL7;
openlog(Syslog_ident, LOG_PID | LOG_NDELAY, syslog_fac);
syslog_ident = strdup(Syslog_ident);
if (syslog_ident == NULL) /* out of memory already!? */
syslog_ident = "postgres";
openlog(syslog_ident, LOG_PID | LOG_NDELAY, syslog_fac);
openlog_done = true;
}