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Irssi : Irssi analysis 1 : Null Pointer Dereference  at irc-commands.c:171

Categories: LANG.MEM.NPD CWE:476
Warning ID: 2167.2171
Procedure: cmd_part
Trace: View
Modified: Wed Sep 2 11:51:41 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Warning Location
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Parse Error
Other Warning
Two or More Loop Iterations
On Execution Path
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Warning Location Contributes Parse Error
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/core/irc-commands.c
   Enter cmd_part
 152 static void cmd_part(const char *data, IRC_SERVER_REC *server,
 153                      WI_ITEM_REC *item) 
 154 {
 155         char *channame, *msg;
 156         char *recoded = NULL;
 157         void *free_arg;
 158  
 159         CMD_IRC_SERVER(server);
 160  
 161         if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_GETREST | 
 162                             PARAM_FLAG_OPTCHAN, item, &channame, &msg))
 163                 return;
 164         if (*channame == '\0') cmd_param_error(CMDERR_NOT_ENOUGH_PARAMS);
 165  
true166         if (*msg == '\0') msg = (char *) settings_get_str("part_message");
 167  
 168         if (server->cmdcount > MAX_COMMANDS_ON_PART_UNTIL_PURGE)
 169                 irc_server_purge_output(server, channame);
 170  
msg <= 4095171         if (*msg != '\0')     /* Null Pointer Dereference */
Preconditions 
$param_1 != 0
((char*)$param_2)[368] >= 11
((char*)$param_2)[56] != 0
((char*)&((char*)((char*)*$param_2)[376])[8])[8] = 0
$unknown_378837 != 0
strlen(&$unknown_378837) != 0
$unknown_378838 = 0
strlen(&$unknown_378838) = 0
Postconditions 
channame' = &$unknown_378837
data' = $param_1
item' = $param_3
msg' = 0
recoded' = 0
server' = $param_2



Change Warning 2167.2171 : Null Pointer Dereference

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