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char *InsertString(char *Data, char *InsertAfter, char *InsertData);

int main()
{
        char *blah;

        blah = InsertString("<html> </html>", "<html>", "<title>test</title>");
        printf("%s\n", blah);
        return 1;
}

char *InsertString(char *Data, char *InsertAfter, char *InsertData)
{
        char *newData = (char*) malloc(strlen(Data) + strlen(InsertData) + strlen(InsertAfter) + 1);
        int pos;

        strcpy(newData, Data);
        pos = strspn(Data, InsertAfter);
        printf("%s - POS: %d\n", InsertAfter, pos);
        memmove(newData+pos,InsertData, strlen(InsertAfter)+strlen(InsertData));

        return newData;

}

/*
        Result: <html><title>test</title>
        Expected: <html><title>test</title></html>
*/