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Avoid crash when adding SNMP Users. 

This fixes bug 4926.

svn path=/trunk/; revision=33329
This commit is contained in:
Stig Bjørlykke 2010-06-26 12:00:08 +00:00
parent b040f1ac8c
commit 3f9a94d773
2 changed files with 19 additions and 17 deletions
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15
asn1/snmp/packet-snmp-template.c
View File

@ -1112,12 +1112,12 @@ static snmp_ue_assoc_t* ue_se_dup(snmp_ue_assoc_t* o) {
#define CACHE_INSERT(c,a) if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = NULL; }
static void renew_ue_cache(void) {
localized_ues = NULL;
unlocalized_ues = NULL;
if (num_ueas) {
guint i;
localized_ues = NULL;
unlocalized_ues = NULL;
for(i = 0; i < num_ueas; i++) {
snmp_ue_assoc_t* a = ue_se_dup(&(ueas[i]));
@ -1129,9 +1129,6 @@ static void renew_ue_cache(void) {
}
}
} else {
localized_ues = NULL;
unlocalized_ues = NULL;
}
}
@ -1920,6 +1917,10 @@ static void snmp_users_update_cb(void* p _U_, const char** err) {
*err = NULL;
if (num_ueas == 0)
/* Nothing to update */
return;
if (! ue->user.userName.len)
g_string_append_printf(es,"no userName\n");
@ -2103,7 +2104,7 @@ void proto_register_snmp(void) {
snmp_users_copy_cb,
snmp_users_update_cb,
snmp_users_free_cb,
renew_ue_cache,
renew_ue_cache,
users_fields);
static uat_field_t specific_traps_flds[] = {

21
epan/dissectors/packet-snmp.c
View File

@ -1214,12 +1214,12 @@ static snmp_ue_assoc_t* ue_se_dup(snmp_ue_assoc_t* o) {
#define CACHE_INSERT(c,a) if (c) { snmp_ue_assoc_t* t = c; c = a; c->next = t; } else { c = a; a->next = NULL; }
static void renew_ue_cache(void) {
localized_ues = NULL;
unlocalized_ues = NULL;
if (num_ueas) {
guint i;
localized_ues = NULL;
unlocalized_ues = NULL;
for(i = 0; i < num_ueas; i++) {
snmp_ue_assoc_t* a = ue_se_dup(&(ueas[i]));
@ -1231,9 +1231,6 @@ static void renew_ue_cache(void) {
}
}
} else {
localized_ues = NULL;
unlocalized_ues = NULL;
}
}
@ -2700,7 +2697,7 @@ static void dissect_SMUX_PDUs_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, pro
/*--- End of included file: packet-snmp-fn.c ---*/
#line 1480 "packet-snmp-template.c"
#line 1477 "packet-snmp-template.c"
guint
@ -3144,6 +3141,10 @@ static void snmp_users_update_cb(void* p _U_, const char** err) {
*err = NULL;
if (num_ueas == 0)
/* Nothing to update */
return;
if (! ue->user.userName.len)
g_string_append_printf(es,"no userName\n");
@ -3551,7 +3552,7 @@ void proto_register_snmp(void) {
NULL, HFILL }},
/*--- End of included file: packet-snmp-hfarr.c ---*/
#line 2066 "packet-snmp-template.c"
#line 2067 "packet-snmp-template.c"
};
/* List of subtrees */
@ -3591,7 +3592,7 @@ void proto_register_snmp(void) {
&ett_snmp_RReqPDU_U,
/*--- End of included file: packet-snmp-ettarr.c ---*/
#line 2082 "packet-snmp-template.c"
#line 2083 "packet-snmp-template.c"
};
module_t *snmp_module;
@ -3616,7 +3617,7 @@ void proto_register_snmp(void) {
snmp_users_copy_cb,
snmp_users_update_cb,
snmp_users_free_cb,
renew_ue_cache,
renew_ue_cache,
users_fields);
static uat_field_t specific_traps_flds[] = {