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Annotation of xinu/sys/TEST/test.c.eth1, revision 1.1.1.1

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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