29 lines
423 B
C
29 lines
423 B
C
#include <u.h>
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#include <libc.h>
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#include <ip.h>
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int
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myetheraddr(uchar *to, char *dev)
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{
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int n, fd;
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char buf[256];
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if(*dev == '/' || *dev == '#')
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snprint(buf, sizeof buf, "%s/addr", dev);
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else
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snprint(buf, sizeof buf, "/net/%s/addr", dev);
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fd = open(buf, OREAD);
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if(fd < 0)
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return -1;
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n = read(fd, buf, sizeof buf -1 );
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close(fd);
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if(n <= 0)
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return -1;
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buf[n] = 0;
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parseether(to, buf);
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return 0;
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}
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