From owner-freebsd-hackers@FreeBSD.ORG  Sun May 13 15:30:37 2007
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From: Viktor Vasilev <viktor.vasilev@stud.tu-darmstadt.de>
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Date: Sun, 13 May 2007 17:30:25 +0200
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Subject: Re: ioctl
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On Sunday 13 May 2007 16:57 Viktor Vasilev wrote:
> On Sunday 13 May 2007 15:59 Mohsen Pahlevanzadeh wrote:
> > Dear all,
> > I need to a code piece that it gets serial number of hdd.
> > Please help me....
>
> For an ATA disk you can use the IOCATAGPARM ioctl to get the information.
> See the attached C source for example. Be sure to have a look
> at /usr/src/sys/sys/ata.h for other relevant fields and sizes.

i'll inline the source since it didn't came through..

#include <stdio.h>
#include <fcntl.h>
#include <err.h>
#include <sys/types.h>
#include <sys/ata.h>

int main() {
        struct ata_params ap;
        int fd, i;

        if((fd = open("/dev/ad0", O_RDONLY)) == -1) {
                err(1, "error opening /dev/ad0");
        }

        if (ioctl (fd, IOCATAGPARM, &ap) == -1) {
                err(1, "error executing ioctl");
        }

        printf("Model:    ");
        for(i = 0; i < 40 && ap.model[i] != '\0'; i++)
                printf("%c", ap.model[i]);
        putchar('\n');

        printf("Revision: ");
        for(i = 0; i < 8 && ap.revision[i] != '\0'; i++)
                printf("%c", ap.revision[i]);
        putchar('\n');

        printf("Serial:   ");
        for(i = 0; i < 20 && ap.serial[i] != '\0'; i++)
                printf("%c", ap.serial[i]);
        putchar('\n');

        return 0;
}


Cheers,
Vik

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