Re: [Qemu-devel] [PATCH] Random MAC address option

[Kevin Wolf]

Pavel Vasilyev schrieb:
> Index: Makefile.target
> ===================================================================
> --- Makefile.target   (revision 6463)
> +++ Makefile.target   (working copy)
> @@ -580,7 +580,8 @@
>  OBJS+= fdc.o mc146818rtc.o serial.o i8259.o i8254.o pcspk.o pc.o
>  OBJS+= cirrus_vga.o apic.o parallel.o acpi.o piix_pci.o
>  OBJS+= usb-uhci.o vmmouse.o vmport.o vmware_vga.o hpet.o
> -CPPFLAGS += -DHAS_AUDIO -DHAS_AUDIO_CHOICE
> +CPPFLAGS += 
> +#-DHAS_AUDIO -DHAS_AUDIO_CHOICE
>  endif
>  ifeq ($(TARGET_BASE_ARCH), ppc)
>  CPPFLAGS += -DHAS_AUDIO -DHAS_AUDIO_CHOICE
> Index: net.c
> ===================================================================
> --- net.c     (revision 6463)
> +++ net.c     (working copy)
> @@ -122,6 +122,24 @@
>  
>  static VLANState *first_vlan;
>  
> +unsigned long int random_mac_seed(void) {
> +
> +    unsigned long int seed = 0;
> +    int fd;
> +
> +    fd = open("/dev/urandom", O_RDONLY);

How is that supposed to work on Windows? And what's wrong with rand()?

> +    if (fd == -1) {
> +        perror("open");
> +        return 0;
> +    }
> +    if (read(fd, &seed, sizeof (seed)) < 0) {
> +        perror("read");
> +        seed = 0;
> +    }
> +    if (close(fd))
> +        perror("close");
> +    return seed;
> +}
>  /***********************************************************/
>  /* network device redirectors */
>  
> @@ -160,7 +178,7 @@
>      long int offset;
>  
>      errno = 0;
> -    offset = strtol(p, &last_char, 0);    
> +    offset = strtol(p, &last_char, 0);
>      if (0 == errno && '\0' == *last_char &&
>              offset >= 0 && offset <= 0xFFFFFF) {
>          macaddr[3] = (offset & 0xFF0000) >> 16;
> @@ -179,7 +197,7 @@
>                  p++;
>              }
>          }
> -        return 0;    
> +        return 0;
>      }
>  
>      return -1;

I don't think these whitespace changes should be there.

Kevin