You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
2.0 KiB
55 lines
2.0 KiB
7 years ago
|
1228893 - snmpd segfaults on reload with multiple 'exec' entry
|
||
|
|
|
||
|
|
commit 54290bede338164ca65a3eed224fa5040d7dd857
|
||
|
|
Author: Niels Baggesen <nba@users.sourceforge.net>
|
||
|
|
Date: Fri Oct 26 07:50:11 2012 +0200
|
||
|
|
|
||
|
|
Better cleanup of "exec" config to avoid crash during reload of config
|
||
|
|
|
||
|
|
diff --git a/agent/mibgroup/agent/extend.c b/agent/mibgroup/agent/extend.c
|
||
|
|
index 68a11e2..9cb641c 100644
|
||
|
|
--- a/agent/mibgroup/agent/extend.c
|
||
|
|
+++ b/agent/mibgroup/agent/extend.c
|
||
|
|
@@ -34,7 +34,7 @@ typedef struct extend_registration_block_s {
|
||
|
|
size_t oid_len;
|
||
|
|
long num_entries;
|
||
|
|
netsnmp_extend *ehead;
|
||
|
|
- netsnmp_handler_registration *reg[3];
|
||
|
|
+ netsnmp_handler_registration *reg[4];
|
||
|
|
struct extend_registration_block_s *next;
|
||
|
|
} extend_registration_block;
|
||
|
|
extend_registration_block *ereg_head = NULL;
|
||
|
|
@@ -222,10 +222,13 @@ _register_extend( oid *base, size_t len )
|
||
|
|
rc = netsnmp_register_watched_scalar2( reg, winfo );
|
||
|
|
if (rc != SNMPERR_SUCCESS)
|
||
|
|
goto bail;
|
||
|
|
+ eptr->reg[3] = reg;
|
||
|
|
|
||
|
|
return eptr;
|
||
|
|
|
||
|
|
bail:
|
||
|
|
+ if (eptr->reg[3])
|
||
|
|
+ netsnmp_unregister_handler(eptr->reg[3]);
|
||
|
|
if (eptr->reg[2])
|
||
|
|
netsnmp_unregister_handler(eptr->reg[2]);
|
||
|
|
if (eptr->reg[1])
|
||
|
|
@@ -267,6 +270,7 @@ extend_clear_callback(int majorID, int minorID,
|
||
|
|
netsnmp_unregister_handler( eptr->reg[0] );
|
||
|
|
netsnmp_unregister_handler( eptr->reg[1] );
|
||
|
|
netsnmp_unregister_handler( eptr->reg[2] );
|
||
|
|
+ netsnmp_unregister_handler( eptr->reg[3] );
|
||
|
|
SNMP_FREE(eptr);
|
||
|
|
}
|
||
|
|
ereg_head = NULL;
|
||
|
|
@@ -550,6 +554,10 @@ extend_parse_config(const char *token, char *cptr)
|
||
|
|
}
|
||
|
|
|
||
|
|
eptr = _register_extend( oid_buf, oid_len );
|
||
|
|
+ if (!eptr) {
|
||
|
|
+ snmp_log(LOG_ERR, "Failed to register extend entry '%s' - possibly duplicate name.\n", exec_name );
|
||
|
|
+ return;
|
||
|
|
+ }
|
||
|
|
extension = _new_extension( exec_name, flags, eptr );
|
||
|
|
if (extension) {
|
||
|
|
extension->command = strdup( exec_command );
|