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Annotation of xinu/sys/TEST/test.c.eth1, revision 1.1

1.1     ! root        1: /* test.c - main */
        !             2: 
        !             3: #include "../h/conf.h"
        !             4: #include "../h/kernel.h"
        !             5: #include "../h/deqna.h"
        !             6: #include "../h/ether.h"
        !             7: 
        !             8: /*------------------------------------------------------------------------
        !             9:  *  main  --  test ethernet by reading packets
        !            10:  *------------------------------------------------------------------------
        !            11:  */
        !            12: main()
        !            13: {
        !            14:        char    buff[1600];
        !            15:        int     i, len;
        !            16:        char    *p, ch;
        !            17:        struct  epacket *epkptr;
        !            18: 
        !            19:        /* call buffer pool stuff so 'freebuf' can be mentioned */
        !            20:        /* without generating a load-time error */
        !            21:        mkpool(10,10);
        !            22: 
        !            23:        kprintf("Read from Ethernet\n");
        !            24:        epkptr = (struct epacket *)buff;
        !            25:        while (1) {
        !            26:            if ( (len=read(ETHER, buff, 1500)) == SYSERR) {
        !            27:                kprintf("\nError\n");
        !            28:            } else if (epkptr->ep_hdr.e_ptype == EP_ARP) {
        !            29:                /* do ARP */ kprintf("ARP...\n");
        !            30:            } else {
        !            31:                p = (char *)buff;
        !            32:                kprintf("\n LEN: %d\n  TO: ",len);
        !            33:                for (i=0 ; i<6 ; i++)
        !            34:                        kprintf("%03o ", 0377& *p++);
        !            35:                kprintf("\nFROM: ");
        !            36:                for (i=0 ; i<6 ; i++)
        !            37:                        kprintf("%03o ", 0377& *p++);
        !            38:                kprintf("\nTYPE: ");
        !            39:                kprintf("%03o ", 0377 & *p++);
        !            40:                kprintf("%03o ", 0377 & *p++);
        !            41:                kprintf("\nDATA: ");
        !            42:                for (i=0 ; i<60 ; i++)
        !            43:                        if ( printable(ch = *p++) )
        !            44:                                kprintf("%c",ch);
        !            45:                kprintf("\n");
        !            46:            }
        !            47:        }
        !            48: }
        !            49: 
        !            50: /*------------------------------------------------------------------------
        !            51:  *  printable - return TRUE iff characher is printable
        !            52:  *------------------------------------------------------------------------
        !            53:  */
        !            54: printable(ch)
        !            55: char   ch;
        !            56: {
        !            57:        return( (ch >= ' ') && (ch <= '~') );
        !            58: }

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