Text  |   XML   |   Visible Warnings:

Irssi : Irssi analysis 1 : Null Pointer Dereference  at dcc-autoget.c:60

Categories: LANG.MEM.NPD CWE:476
Warning ID: 2209.2215
Procedure: sig_dcc_request
Trace: View
Modified: Wed Sep 2 11:52:33 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
  edit properties

Legend [ X ]
Warning Location
Contributes
Parse Error
Other Warning
Two or More Loop Iterations
On Execution Path
Comment
Macro
Preprocessor
Include
Keyword
Preprocessed Away
Legend
Warning Location Contributes Parse Error
Other Warning Two or More Loop Iterations On Execution Path
Comment Macro Preprocessor
Include Keyword Preprocessed Away

Source  |  Language: C Hide Legend     
ProblemLineSource
   /u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/dcc/dcc-autoget.c
   Enter sig_dcc_request
 29 static void sig_dcc_request(GET_DCC_REC *dcc, const char *nickaddr) 
 30 {
 31         struct stat statbuf;
 32         const char *masks;
 33         char *str, *file;
 34         int max_size;
 35  
 36         if (!IS_DCC_GET(dcc)) return;
 37  
 38         /* check if we want to autoget file offer */ 
 39         if (!settings_get_bool("dcc_autoget"))
 40                 return;
 41  
 42         /* check for lowports */ 
 43         if (dcc->port < 1024 && !settings_get_bool("dcc_autoaccept_lowports"))
 44                 return;
 45  
 46         /* check that autoget masks match */ 
 47         masks = settings_get_str("dcc_autoget_masks");
 48         if (*masks != '\0' &&   /* Null Pointer Dereference (ID: 2210.2216) */
 49             !masks_match(SERVER(dcc->server), masks, dcc->nick, nickaddr))
 50                 return;
 51  
 52         /* Unless specifically said in dcc_autoget_masks, don't do autogets 
 53            sent to channels. */ 
 54         if (*masks == '\0' && dcc->target != NULL && ischannel(*dcc->target))
 55                 return;
 56  
 57         /* don't autoget files beginning with a dot, if download dir is 
 58            our home dir (stupid kludge for stupid people) */ 
 59         if (*dcc->arg == '.' &&
true60             strcmp(settings_get_str("dcc_download_path"), "~") == 0)     /* Null Pointer Dereference */
Preconditions 
$param_2 != 0
&$unknown_559332 != 0
&$unknown_559334 != 0
&$unknown_559337 != 0
&$unknown_559338 != 0
((char*)$param_1)[140] <= 1023
((char*)$param_1)[40] != 0
((char*)*$param_1)[64] = 46
strlen(((char*)$param_1)[64]) != 0
strlen(&$unknown_559336) != 0
Postconditions 
$unknown_559336' = &$unknown_559338
dcc' = $param_1
masks' = &$unknown_559336
nickaddr' = $param_2



Change Warning 2209.2215 : Null Pointer Dereference

Priority:
State:
Finding:
Owner:
Note: