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Fix by Sean Reifschneider:
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  - When facility not specified to syslog() method, use default from openlog()
    (This is how it was claimed to work in the documentation)
  - Potential resource leak of o_ident, now cleaned up in closelog()
  - Minor comment accuracy fix.
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gvanrossum committed May 8, 1998
1 parent 27c225e commit ae94cf2
Showing 1 changed file with 38 additions and 25 deletions.
63 changes: 38 additions & 25 deletions Modules/syslogmodule.c
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,12 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Revision history:
1998/04/28 (Sean Reifschneider)
- When facility not specified to syslog() method, use default from openlog()
(This is how it was claimed to work in the documentation)
- Potential resource leak of o_ident, now cleaned up in closelog()
- Minor comment accuracy fix.
95/06/29 (Steve Clift)
- Changed arg parsing to use PyArg_ParseTuple.
- Added PyErr_Clear() call(s) where needed.
Expand All @@ -42,6 +48,10 @@ Revision history:

#include <syslog.h>

/* only one instance, only one syslog, so globals should be ok */
static PyObject *S_ident_o = NULL; /* identifier, held by openlog() */


static PyObject *
syslog_openlog(self, args)
PyObject * self;
Expand All @@ -50,20 +60,19 @@ syslog_openlog(self, args)
long logopt = 0;
long facility = LOG_USER;

static PyObject *ident_o = NULL;

Py_XDECREF(ident_o);
Py_XDECREF(S_ident_o);
if (!PyArg_ParseTuple(args,
"S|ll;ident string [, logoption [, facility]]",
&ident_o, &logopt, &facility))
&S_ident_o, &logopt, &facility))
return NULL;

/* This is needed because openlog() does NOT make a copy
* and syslog() later uses it.. cannot trash it.
*/
Py_INCREF(ident_o);
Py_INCREF(S_ident_o);

openlog(PyString_AsString(ident_o), logopt, facility);
openlog(PyString_AsString(S_ident_o), logopt, facility);

Py_INCREF(Py_None);
return Py_None;
Expand All @@ -76,7 +85,7 @@ syslog_syslog(self, args)
PyObject * args;
{
char *message;
int priority = LOG_INFO | LOG_USER;
int priority = LOG_INFO;

if (!PyArg_ParseTuple(args, "is;[priority,] message string",
&priority, &message)) {
Expand All @@ -85,6 +94,7 @@ syslog_syslog(self, args)
&message))
return NULL;
}

syslog(priority, "%s", message);
Py_INCREF(Py_None);
return Py_None;
Expand All @@ -98,6 +108,8 @@ syslog_closelog(self, args)
if (!PyArg_ParseTuple(args, ""))
return NULL;
closelog();
Py_XDECREF(S_ident_o);
S_ident_o = NULL;
Py_INCREF(Py_None);
return Py_None;
}
Expand Down Expand Up @@ -153,7 +165,7 @@ static PyMethodDef syslog_methods[] = {
{NULL, NULL, 0}
};

/* Initialization function for the module */
/* helper function for initialization function */

static void
ins(d, s, x)
Expand All @@ -168,6 +180,7 @@ ins(d, s, x)
}
}

/* Initialization function for the module */

void
initsyslog()
Expand Down Expand Up @@ -205,25 +218,7 @@ initsyslog()
ins(d, "LOG_MAIL", LOG_MAIL);
ins(d, "LOG_DAEMON", LOG_DAEMON);
ins(d, "LOG_AUTH", LOG_AUTH);
#ifdef LOG_SYSLOG
ins(d, "LOG_SYSLOG", LOG_SYSLOG);
#endif
ins(d, "LOG_LPR", LOG_LPR);
#ifdef LOG_NEWS
ins(d, "LOG_NEWS", LOG_NEWS);
#else
ins(d, "LOG_NEWS", LOG_MAIL);
#endif
#ifdef LOG_UUCP
ins(d, "LOG_UUCP", LOG_UUCP);
#else
ins(d, "LOG_UUCP", LOG_MAIL);
#endif
#ifdef LOG_CRON
ins(d, "LOG_CRON", LOG_CRON);
#else
ins(d, "LOG_CRON", LOG_DAEMON);
#endif
ins(d, "LOG_LOCAL0", LOG_LOCAL0);
ins(d, "LOG_LOCAL1", LOG_LOCAL1);
ins(d, "LOG_LOCAL2", LOG_LOCAL2);
Expand All @@ -233,6 +228,24 @@ initsyslog()
ins(d, "LOG_LOCAL6", LOG_LOCAL6);
ins(d, "LOG_LOCAL7", LOG_LOCAL7);

#ifndef LOG_SYSLOG
#define LOG_SYSLOG LOG_DAEMON
#endif
#ifndef LOG_NEWS
#define LOG_NEWS LOG_MAIL
#endif
#ifndef LOG_UUCP
#define LOG_UUCP LOG_MAIL
#endif
#ifndef LOG_CRON
#define LOG_CRON LOG_DAEMON
#endif

ins(d, "LOG_SYSLOG", LOG_SYSLOG);
ins(d, "LOG_CRON", LOG_CRON);
ins(d, "LOG_UUCP", LOG_UUCP);
ins(d, "LOG_NEWS", LOG_NEWS);

/* Check for errors */
if (PyErr_Occurred())
Py_FatalError("can't initialize module syslog");
Expand Down

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