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gvanrossumgvanrossum
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changes by Steve Clift
1 parent 7d0590b commit c1822a4

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‎Modules/syslogmodule.c‎

Lines changed: 92 additions & 80 deletions
Original file line numberDiff line numberDiff line change
@@ -22,6 +22,20 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2222
2323
******************************************************************/
2424

25+
/******************************************************************
26+
27+
Revision history:
28+
29+
95/06/29 (Steve Clift)
30+
- Changed arg parsing to use PyArg_ParseTuple.
31+
- Added PyErr_Clear() call(s) where needed.
32+
- Fix core dumps if user message contains format specifiers.
33+
- Change openlog arg defaults to match normal syslog behaviour.
34+
- Plug memory leak in openlog().
35+
- Fix setlogmask() to return previous mask value.
36+
37+
******************************************************************/
38+
2539
/* syslog module */
2640

2741
#include "Python.h"
@@ -33,18 +47,21 @@ syslog_openlog(self, args)
3347
PyObject * self;
3448
PyObject * args;
3549
{
36-
char *ident = "";
37-
PyObject * ident_o;
38-
long logopt = LOG_PID;
50+
long logopt = 0;
3951
long facility = LOG_USER;
40-
if (!PyArg_Parse(args, "(Sll);ident string, logoption, facility", &ident_o, &logopt, &facility))
41-
if (!PyArg_Parse(args, "(Sl);ident string, logoption", &ident_o, &logopt))
42-
if (!PyArg_Parse(args, "S;ident string", &ident_o))
52+
53+
static PyObject *ident_o = NULL;
54+
55+
Py_XDECREF(ident_o);
56+
if (!PyArg_ParseTuple(args, "S|ll;ident string [, logoption [, facility]]",
57+
&ident_o, &logopt, &facility)) {
4358
return NULL;
59+
}
4460
Py_INCREF(ident_o); /* This is needed because openlog() does NOT make a copy
45-
and syslog() later uses it.. cannot trash it. */
46-
ident = PyString_AsString(ident_o);
47-
openlog(ident,logopt,facility);
61+
and syslog() later uses it.. cannot trash it. */
62+
63+
openlog(PyString_AsString(ident_o), logopt, facility);
64+
4865
Py_INCREF(Py_None);
4966
return Py_None;
5067
}
@@ -54,13 +71,17 @@ syslog_syslog(self, args)
5471
PyObject * self;
5572
PyObject * args;
5673
{
57-
int priority = LOG_INFO;
58-
char *message;
74+
char *message, *s;
75+
int priority = LOG_INFO | LOG_USER;
5976

60-
if (!PyArg_Parse(args,"(is);priority, message string",&priority,&message))
61-
if (!PyArg_Parse(args,"s;message string",&message))
77+
if (!PyArg_ParseTuple(args, "is;[priority,] message string",
78+
&priority, &message)) {
79+
PyErr_Clear();
80+
if (!PyArg_ParseTuple(args, "s;[priority,] message string", &message)) {
6281
return NULL;
63-
syslog(priority, message);
82+
}
83+
}
84+
syslog(priority, "%s", message);
6485
Py_INCREF(Py_None);
6586
return Py_None;
6687
}
@@ -70,7 +91,7 @@ syslog_closelog(self, args)
7091
PyObject * self;
7192
PyObject * args;
7293
{
73-
if (!PyArg_NoArgs(args))
94+
if (!PyArg_ParseTuple(args, ""))
7495
return NULL;
7596
closelog();
7697
Py_INCREF(Py_None);
@@ -82,12 +103,12 @@ syslog_setlogmask(self, args)
82103
PyObject * self;
83104
PyObject * args;
84105
{
85-
long maskpri;
86-
if (!PyArg_Parse(args,"l;mask for priority",&maskpri))
106+
long maskpri, omaskpri;
107+
108+
if (!PyArg_ParseTuple(args,"l;mask for priority",&maskpri))
87109
return NULL;
88-
setlogmask(maskpri);
89-
Py_INCREF(Py_None);
90-
return Py_None;
110+
omaskpri = setlogmask(maskpri);
111+
return PyInt_FromLong(omaskpri);
91112
}
92113

93114
static PyObject *
@@ -97,7 +118,7 @@ syslog_log_mask(self, args)
97118
{
98119
long mask;
99120
long pri;
100-
if (!PyArg_Parse(args,"l",&pri))
121+
if (!PyArg_ParseTuple(args,"l",&pri))
101122
return NULL;
102123
mask = LOG_MASK(pri);
103124
return PyInt_FromLong(mask);
@@ -110,7 +131,7 @@ syslog_log_upto(self, args)
110131
{
111132
long mask;
112133
long pri;
113-
if (!PyArg_Parse(args,"l",&pri))
134+
if (!PyArg_ParseTuple(args,"l",&pri))
114135
return NULL;
115136
mask = LOG_UPTO(pri);
116137
return PyInt_FromLong(mask);
@@ -119,77 +140,68 @@ syslog_log_upto(self, args)
119140
/* List of functions defined in the module */
120141

121142
static PyMethodDef syslog_methods[] = {
122-
{"openlog", (PyCFunction)syslog_openlog},
123-
{"closelog", (PyCFunction)syslog_closelog},
124-
{"syslog", (PyCFunction)syslog_syslog},
125-
{"setlogmask", (PyCFunction)syslog_setlogmask},
126-
{"LOG_MASK", (PyCFunction)syslog_log_mask},
127-
{"LOG_UPTO", (PyCFunction)syslog_log_upto},
128-
{NULL, NULL} /* sentinel */
143+
{"openlog", syslog_openlog, METH_VARARGS},
144+
{"closelog", syslog_closelog, METH_VARARGS},
145+
{"syslog", syslog_syslog, METH_VARARGS},
146+
{"setlogmask", syslog_setlogmask, METH_VARARGS},
147+
{"LOG_MASK", syslog_log_mask, METH_VARARGS},
148+
{"LOG_UPTO", syslog_log_upto, METH_VARARGS},
149+
{NULL, NULL, 0}
129150
};
130151

131152
/* Initialization function for the module */
132153

154+
#define DICT_SET_INT(d, s, x) \
155+
PyDict_SetItemString(d, s, PyInt_FromLong((long) (x)))
156+
133157
void
134158
initsyslog()
135159
{
136-
PyObject *m, *d, *x;
160+
PyObject *m, *d;
137161

138162
/* Create the module and add the functions */
139163
m = Py_InitModule("syslog", syslog_methods);
140164

141165
/* Add some symbolic constants to the module */
142166
d = PyModule_GetDict(m);
143-
x = PyInt_FromLong(LOG_EMERG);
144-
PyDict_SetItemString(d, "LOG_EMERG", x);
145-
x = PyInt_FromLong(LOG_ALERT);
146-
PyDict_SetItemString(d, "LOG_ALERT", x);
147-
x = PyInt_FromLong(LOG_CRIT);
148-
PyDict_SetItemString(d, "LOG_CRIT", x);
149-
x = PyInt_FromLong(LOG_ERR);
150-
PyDict_SetItemString(d, "LOG_ERR", x);
151-
x = PyInt_FromLong(LOG_WARNING);
152-
PyDict_SetItemString(d, "LOG_WARNING", x);
153-
x = PyInt_FromLong(LOG_NOTICE);
154-
PyDict_SetItemString(d, "LOG_NOTICE", x);
155-
x = PyInt_FromLong(LOG_INFO);
156-
PyDict_SetItemString(d, "LOG_INFO", x);
157-
x = PyInt_FromLong(LOG_DEBUG);
158-
PyDict_SetItemString(d, "LOG_DEBUG", x);
159-
x = PyInt_FromLong(LOG_PID);
160-
PyDict_SetItemString(d, "LOG_PID", x);
161-
x = PyInt_FromLong(LOG_CONS);
162-
PyDict_SetItemString(d, "LOG_CONS", x);
163-
x = PyInt_FromLong(LOG_NDELAY);
164-
PyDict_SetItemString(d, "LOG_NDELAY", x);
165-
x = PyInt_FromLong(LOG_NOWAIT);
166-
PyDict_SetItemString(d, "LOG_NOWAIT", x);
167-
x = PyInt_FromLong(LOG_KERN);
168-
PyDict_SetItemString(d, "LOG_KERN", x);
169-
x = PyInt_FromLong(LOG_USER);
170-
PyDict_SetItemString(d, "LOG_USER", x);
171-
x = PyInt_FromLong(LOG_MAIL);
172-
PyDict_SetItemString(d, "LOG_MAIL", x);
173-
x = PyInt_FromLong(LOG_DAEMON);
174-
PyDict_SetItemString(d, "LOG_DAEMON", x);
175-
x = PyInt_FromLong(LOG_LPR);
176-
PyDict_SetItemString(d, "LOG_LPR", x);
177-
x = PyInt_FromLong(LOG_LOCAL0);
178-
PyDict_SetItemString(d, "LOG_LOCAL0", x);
179-
x = PyInt_FromLong(LOG_LOCAL1);
180-
PyDict_SetItemString(d, "LOG_LOCAL1", x);
181-
x = PyInt_FromLong(LOG_LOCAL2);
182-
PyDict_SetItemString(d, "LOG_LOCAL2", x);
183-
x = PyInt_FromLong(LOG_LOCAL3);
184-
PyDict_SetItemString(d, "LOG_LOCAL3", x);
185-
x = PyInt_FromLong(LOG_LOCAL4);
186-
PyDict_SetItemString(d, "LOG_LOCAL4", x);
187-
x = PyInt_FromLong(LOG_LOCAL5);
188-
PyDict_SetItemString(d, "LOG_LOCAL5", x);
189-
x = PyInt_FromLong(LOG_LOCAL6);
190-
PyDict_SetItemString(d, "LOG_LOCAL6", x);
191-
x = PyInt_FromLong(LOG_LOCAL7);
192-
PyDict_SetItemString(d, "LOG_LOCAL7", x);
167+
168+
/* Priorities */
169+
DICT_SET_INT(d, "LOG_EMERG", LOG_EMERG);
170+
DICT_SET_INT(d, "LOG_ALERT", LOG_ALERT);
171+
DICT_SET_INT(d, "LOG_CRIT", LOG_CRIT);
172+
DICT_SET_INT(d, "LOG_ERR", LOG_ERR);
173+
DICT_SET_INT(d, "LOG_WARNING", LOG_WARNING);
174+
DICT_SET_INT(d, "LOG_NOTICE", LOG_NOTICE);
175+
DICT_SET_INT(d, "LOG_INFO", LOG_INFO);
176+
DICT_SET_INT(d, "LOG_DEBUG", LOG_DEBUG);
177+
178+
/* openlog() option flags */
179+
DICT_SET_INT(d, "LOG_PID", LOG_PID);
180+
DICT_SET_INT(d, "LOG_CONS", LOG_CONS);
181+
DICT_SET_INT(d, "LOG_NDELAY", LOG_NDELAY);
182+
DICT_SET_INT(d, "LOG_NOWAIT", LOG_NOWAIT);
183+
#ifdef LOG_PERROR
184+
DICT_SET_INT(d, "LOG_PERROR", LOG_PERROR);
185+
#endif
186+
187+
/* Facilities */
188+
DICT_SET_INT(d, "LOG_KERN", LOG_KERN);
189+
DICT_SET_INT(d, "LOG_USER", LOG_USER);
190+
DICT_SET_INT(d, "LOG_MAIL", LOG_MAIL);
191+
DICT_SET_INT(d, "LOG_DAEMON", LOG_DAEMON);
192+
DICT_SET_INT(d, "LOG_AUTH", LOG_AUTH);
193+
DICT_SET_INT(d, "LOG_LPR", LOG_LPR);
194+
DICT_SET_INT(d, "LOG_NEWS", LOG_NEWS);
195+
DICT_SET_INT(d, "LOG_UUCP", LOG_UUCP);
196+
DICT_SET_INT(d, "LOG_CRON", LOG_CRON);
197+
DICT_SET_INT(d, "LOG_LOCAL0", LOG_LOCAL0);
198+
DICT_SET_INT(d, "LOG_LOCAL1", LOG_LOCAL1);
199+
DICT_SET_INT(d, "LOG_LOCAL2", LOG_LOCAL2);
200+
DICT_SET_INT(d, "LOG_LOCAL3", LOG_LOCAL3);
201+
DICT_SET_INT(d, "LOG_LOCAL4", LOG_LOCAL4);
202+
DICT_SET_INT(d, "LOG_LOCAL5", LOG_LOCAL5);
203+
DICT_SET_INT(d, "LOG_LOCAL6", LOG_LOCAL6);
204+
DICT_SET_INT(d, "LOG_LOCAL7", LOG_LOCAL7);
193205

194206
/* Check for errors */
195207
if (PyErr_Occurred())

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