getline - Gets a line from a stream

getline.c

char* getline(FILE* stream){
    size_t bytes=0;
    unsigned int capacity=64;
    char* buf=malloc(capacity);
    char c;
#ifdef __unix__
    while((c=fgetc(stream))!=EOF&&c!='\n')
#else
    while((c=fgetc(stream))!=EOF&&c!='\n'&&c!='\r')
#endif // __unix__
    {
        bytes++;
        if(bytes+1>=capacity){
            capacity*=2;
            buf=realloc(buf, capacity);
            if(!buf){
                return 0x0;
            }
        }
        buf[bytes-1]=c;
        
    }
    
    return buf;
}