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irssi-0.8.14 : irssi-0.8.14 analysis 2 : Null Pointer Dereference  at dcc-autoget.c:60

Categories: LANG.MEM.NPD CWE:476
Warning ID: 7274.28360
Procedure: sig_dcc_request
Trace: view
Modified: Thu Nov 26 11:09:03 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /kat0/fletcher/SATE/2010/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: 7275.28361) */
 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 
nickaddr != 0
&$unknown_345270 != 0
&$unknown_345272 != 0
&$unknown_345275 != 0
&$unknown_345276 != 0
dcc->nick != 0
dcc->port <= 1023
dcc->server = 0
*dcc->arg = 46
strlen(dcc->arg) != 0
strlen(&$unknown_345274) != 0
Postconditions 
$unknown_345274' = &$unknown_345276
masks' = &$unknown_345274



Change Warning 7274.28360 : Null Pointer Dereference

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