返回time_t错误

Question

The program will return a set of string "This is James: 00:00:00" and a time format but it crashed. I believe there is a missing memory allocation but couldn't pin where the error is.

FREObject result = 0;

uint32_t len = -1;
const uint8_t *str = 0;
char *temp;
uint8_t *strAll;

time_t curtime;
struct tm *loctime;

/* Get the current time. */
curtime = time(NULL);

/* Convert it to local time representation. */
loctime = localtime(&curtime);

//Turn our actionscrpt code into native code.
if(FREGetObjectAsUTF8(argv[0], &len, &str) == FRE_OK) {
    temp = "Hello World! This is ";

    strAll = (char *)malloc(sizeof(temp) + sizeof(str) + sizeof(loctime));
    strcpy(strAll,temp);
    strcat(strAll,str);
    strcat(strAll,asctime(loctime));
}

Answer 1

You probably want strlen instead of sizeof here:

strAll = (char *)malloc(sizeof(temp) + sizeof(str) + sizeof(loctime));

Also the sizeof(loctime) makes very little sense . You probably want to replace it with the length of asctime(loctime) .

Maybe something like this:

char *asc = asctime(loctime);
strAll = malloc(strlen(temp) + strlen(str) + stren(asc) + 1);