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Annotation of researchv10no/cmd/ether/findslot.c, revision 1.1

1.1     ! root        1: #include <errno.h>
        !             2: 
        !             3: extern int errno;
        !             4: 
        !             5: 
        !             6: findslot(prefix, min, max, mode)
        !             7: char *prefix;
        !             8: {
        !             9:      char filename[40];
        !            10:      int  n, fd;
        !            11: 
        !            12:      for (n = min; max < 0 || n <= max;) {
        !            13:           sprintf(filename, "%s%02d", prefix, n++);
        !            14:          if ((fd = open(filename, mode)) >= 0)
        !            15:               return fd;
        !            16:           if (errno != ENXIO)
        !            17:               return -1;
        !            18:      }
        !            19: 
        !            20:      errno = ENOENT;
        !            21:      return -1;
        !            22: }

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