Question

I keep constantly getting a segmentation error with a small portion of code and I have no idea why, I’m using malloc and cant see any reason with that, just as soono as it hits the portion of data, its crashes.
The Data is:

listNode* node = (listNode*)malloc(sizeof(listNode));    <-This is the Line
strcpy(node->entry, string); 
node->next = NULL;

Using the struct definition:

typedef struct
{
    char* entry;
    struct listNode* next;
}listNode;

The data does get freed at one point, however it cannot reach said point.
Thanks for the help!

Answer 1

You didn’t allocate memory for the entry pointer. You’re trying to copy your string to a bogus location specified by the uninitialized pointer entry. You might do this instead:

node->entry = malloc(strlen(string) + 1);
strcpy(node->entry, string);