New Coverity Warnings

Hi,

Please find the latest report on new defect(s) introduced to BIND found with Coverity Scan.

3 new defect(s) introduced to BIND found with Coverity Scan.


New defect(s) Reported-by: Coverity Scan
Showing 3 of 3 defect(s)


** CID 1434969:    (UNINIT)


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*** CID 1434969:    (UNINIT)
/bin/tools/mdig.c: 1033 in plus_option()
1027             isc_result_t result;
1028             char *cmd, *value, *last, *code;
1029             isc_uint32_t num;
1030             isc_boolean_t state = ISC_TRUE;
1031             size_t n;
1032    
>>>     CID 1434969:    (UNINIT)
>>>     Using uninitialized value "last" when calling "__strtok_r_1c".
1033             if ((cmd = strtok_r(option, "=", &last)) == NULL) {
1034                     printf(";; Invalid option %s\n", option);
1035                     return;
1036             }
1037             if (strncasecmp(cmd, "no", 2) == 0) {
1038                     cmd += 2;
/bin/delv/delv.c: 968 in plus_option()
962     static void
963     plus_option(char *option) {
964             isc_result_t result;
965             char *cmd, *value, *last;
966             isc_boolean_t state = ISC_TRUE;
967    
>>>     CID 1434969:    (UNINIT)
>>>     Using uninitialized value "last" when calling "__strtok_r_1c".
968             cmd = strtok_r(option, "=", &last);
969             if (cmd == NULL) {
970                     printf(";; Invalid option %s\n", option);
971                     return;
972             }
973             if (strncasecmp(cmd, "no", 2)==0) {
/bin/dig/dig.c: 741 in plus_option()
735             isc_result_t result;
736             char *cmd, *value, *last, *code, *extra;
737             isc_uint32_t num;
738             isc_boolean_t state = ISC_TRUE;
739             size_t n;
740    
>>>     CID 1434969:    (UNINIT)
>>>     Using uninitialized value "last" when calling "__strtok_r_1c".
741             if ((cmd = strtok_r(option, "=", &last)) == NULL) {
742                     printf(";; Invalid option %s\n", option);
743                     return;
744             }
745             if (strncasecmp(cmd, "no", 2)==0) {
746                     cmd += 2;

** CID 1434968:  Null pointer dereferences  (FORWARD_NULL)


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*** CID 1434968:  Null pointer dereferences  (FORWARD_NULL)
/bin/named/statschannel.c: 3126 in render_xsl()
3120                     isc_time_t when;
3121                     char *line, *saveptr;
3122                     const char *if_modified_since = "If-Modified-Since: ";
3123                     _headers = strdup(headers);
3124    
3125                     saveptr = NULL;
>>>     CID 1434968:  Null pointer dereferences  (FORWARD_NULL)
>>>     Passing "&saveptr" to "__strtok_r_1c", which dereferences null "saveptr".
3126                     for (line = strtok_r(_headers, "\n", &saveptr);
3127                          line;
3128                          line = strtok_r(NULL, "\n", &saveptr)) {
3129                             if (strncasecmp(line, if_modified_since,
3130                                             strlen(if_modified_since)) == 0) {
3131                                     time_t t1, t2;

** CID 1434967:  Null pointer dereferences  (FORWARD_NULL)


________________________________________________________________________________________________________
*** CID 1434967:  Null pointer dereferences  (FORWARD_NULL)
/lib/irs/getaddrinfo.c: 1074 in set_order()
1068                             break;
1069                     }
1070             } else {
1071                     order = getenv("NET_ORDER");
1072                     found = 0;
1073                     last = NULL;
>>>     CID 1434967:  Null pointer dereferences  (FORWARD_NULL)
>>>     Passing "&last" to "__strtok_r_1c", which dereferences null "last".
1074                     for (tok = strtok_r(order, ":", &last);
1075                          tok;
1076                          tok = strtok_r(NULL, ":", &last))
1077                     {
1078                             if (strcasecmp(tok, "inet6") == 0) {
1079                                     if ((found & FOUND_IPV6) == 0) {