Valgrind無効なサイズの読み取り

Question

まず、私は他の同様の質問を見て、彼らは私を助けません。私は、次のValgrindの出力を持っている：

マイコード：

int f_gozlemZamaniFarki(long long t1,long long t2) 
{ 
    char *time1 = (char*)calloc(12,sizeof(char)); 
    char *time2 = (char*)calloc(12,sizeof(char)); 

    *time1 = '\0'; 
    *time2 = '\0'; 

    sprintf(time1,"%lli",t1); 
    sprintf(time2,"%lli",t2); 

    int year,month,day,hour,minute,timeDif; 
    int status = 0; 

    struct tm tm1; 
    struct tm tm2; 

    time_t timeF = NULL; 
    time_t timeS = NULL; 

    if(sscanf(time1,"%4d%2d%2d%2d%2d",&year,&month,&day,&hour,&minute) != EOF) 
    { 
     tm1.tm_year = year - 1900; 
     tm1.tm_mon = month; 
     tm1.tm_mdmonth = day; 
     tm1.tm_hour = hour; 
     tm1.tm_min = minute; 
     tm1.tm_sec = 0; 
     timeF = mktime(&tm1); 
    } 

    if(sscanf(time2,"%4d%2d%2d%2d%2d",&year,&month,&day,&hour,&minute) != EOF) 
    { 
     tm2.tm_year = year - 1900; 
     tm2.tm_mon = month; 
     tm2.tm_mdmonth = day; 
     tm2.tm_hour = hour; 
     tm2.tm_min = minute; 
     tm2.tm_sec = 0; 
     timeS = mktime(&tm2); 
    } 

    timeDif = (timeF - timeS)/60; 

    if ((timeDif < 0) || (timeDif > 59)) 
    { 
     status = 1; 
    } 

    free(time1); 
    free(time2); 

    return status; 
} 

valngrid出力

==12726== Invalid read of size 1 
==12726== Address 0x1786dccc is 0 bytes after a block of size 12 alloc'd 
==12726== at 0x4C2AE45: calloc (vg_replace_malloc.c:711) 
==12726== by 0x405171: f_gozlemZamaniFarki (in /home/aws/bin/awsdDataWriter) 
==12726== Conditional jump or move depends on uninitialised value(s) 
==12726== Uninitialised value was created by a stack allocation 
==12726== at 0x405150: f_gozlemZamaniFarki (in /home/aws/bin/awsdDataWriter) 

初期化されているすべての私の変数（私は願っています）Valgrindのが叫んでいる理由、私は理解していません私に。 コードを正しく作成して間違いをするよう提案していますか？

Answer 1

私の問題を解決したこれらの行が変更されました。

char *time1 = (char*)calloc(13,sizeof(char)); 
char *time1 = (char*)calloc(13,sizeof(char)); 

//*time1 = '\0'; 
//*time2 = '\0';