xsh_devdump.c

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/* xsh_devdump.c  - xsh_devdump */

#include <xinu.h>
#include <stdio.h>

/*------------------------------------------------------------------------
 * xsh_devdump - shell command to print info from the device switch table
 *------------------------------------------------------------------------
 */
shellcmd xsh_devdump (
     int    nargs,          /* number of arguments      */
     char   *args[]         /* list of arguments        */
    )
{
    struct  dentry  *devptr;    /* pointer to device entry  */
    int32   i;          /* walks through device table   */

    /* No arguments are expected */

    if (nargs > 1) {
        fprintf(stderr, "No arguments allowed\n");
        return 1;
    }

    /* Walk through device table */

    printf("Device     Name     Minor\n");
    printf("------ ------------ -----\n");

    for (i = 0; i < NDEVS; i++) {
        devptr = &devtab[i];
        printf("%4d   %-12s %3d\n", i, devptr->dvname,
            devptr->dvminor);
    }
    return 0;
}