Text  |   XML   |   Visible Warnings:

Pvm : Pvm analysis 1 : Uninitialized Variable  at pvm_gstat.c:99

Categories: LANG.MEM.UVAR CWE:457
Warning ID: 2951.3034
Procedure: main
Trace: View
Modified: Wed Sep 2 12:54:30 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/pvm/pvm3/pvmgs/pvm_gstat.c
   Enter main
 51 main(argc, argv) 
 52 int argc;
 53 char *argv[];
 54 {
 55     int gstid;
 56     int i, j, ng;  
 57     GROUP_STRUCT group;
 58         group.len = 0; group.name = (char *) NULL;
 59         group.tids = (int *) NULL; group.btids = (int *) NULL;
 60         pvm_mytid();
 61         if((gstid = gs_getgstid()) < 0)  
 62         {
 63             fprintf(stderr, "%s: no groups server\n", argv[0]);
 64             return(-1);
 65         }
 66         pvm_setcontext( SYSCTX_DG );
 67         pvm_initsend(PvmDataDefault);
 68         pvm_send(gstid, GSLS);
 69         if ( pvm_trecv(gstid, GSLS, pvmgs_tmout) <= 0)  
 70         {
 71              fprintf(stderr, "Error receiving message from group server\n");
 72              exit (-1);
 73         }
 74        
 75         /* Unpack the information for each group                           */ 
 76         pvm_upkint(&ng, 1, 1);
 77         if (ng == 0)   /* Uninitialized Variable (ID: 2953.3036) */
 78             fprintf(stdout, "no groups exist\n");
 79         for (i = 0; i < ng; i++)  
 80         {
 81             pvm_upkint(&(group.len),1,1);
 82             NEWMEM(group.name, group.len+1,char);
 83             pvm_upkstr(group.name);
 84             pvm_upkint(&(group.ntids), 1, 1);
 85             pvm_upkint(&(group.maxntids), 1,1);
 86             pvm_upkint(&(group.barrier_count), 1, 1);
 87             pvm_upkint(&(group.barrier_reached),1,1);
true88             NEWMEM(group.tids, group.maxntids, int);
 89             NEWMEM(group.btids, group.barrier_reached, int);
 90             pvm_upkint(group.tids, group.maxntids, 1);
 91             if (group.barrier_reached > 0)
 92                 pvm_upkint(group.btids, group.barrier_reached, 1);
 93             fprintf(stdout,  
 94                 "group: %s, size: %d,  barrier_count %d, barrier_reached %d\n",
 95                  group.name, group.ntids, group.barrier_count,  
 96                  group.barrier_reached);
 97             fputs("tids:\n", stdout);
 98             for (j = 0; j < group.maxntids; j++)
*group.tids is uninitialized99                 if (group.tids[j] > 0)     /* Uninitialized Variable */  /* Null Pointer Dereference (ID: 2952.3035) */
 100                     fprintf(stdout, "%d 0x%x\t", j, group.tids[j]);
 101             fputs("\n", stdout);
 102             if (group.barrier_reached > 0)  
 103             {
 104                 fputs("tids waiting on barrier:\n", stdout);
 105                 for (j = 0; j < group.barrier_reached; j++)
 106                      fprintf(stdout, "0x%x\t", group.btids[j]);   /* Uninitialized Variable (ID: 2950.3033) */
 107                 fputs("\n", stdout);
Preconditions 
&$unknown_3698420 >= 1
&$unknown_3698422 >= 2
&$unknown_3698426 != 0
&$unknown_3698442 >= 1
pvmmytid >= -1
pvmtoplvl != 0
Postconditions 
argc' = $param_1
argv' = $param_2
group.name' = 0
group.tids' = &$heap_254902
group.maxntids' >= 2
group.barrier_reached' = &$unknown_3698442
group.btids' = &$heap_254903
group.len' >= -1
gstid' >= 0
$heap_254902' is allocated by malloc
$heap_254902' is allocated
bytes_before(&$heap_254902)' = 0
bytes_after(&$heap_254903)' = 4 * &$unknown_3698442
$heap_254903' is allocated by malloc
$heap_254903' is allocated
bytes_before(&$heap_254903)' = 0
i' = &$unknown_3698422 - 1
ng' = &$unknown_3698422
pvmrbuf' = &$unknown_3698426
pvmtrc.trctid' >= 1
pvmtrccodef' = &$unknown_3698433



Change Warning 2951.3034 : Uninitialized Variable

Priority:
State:
Finding:
Owner:
Note: