tipc/misc.c

   1 /*
   2  * misc.c       Miscellaneous TIPC helper functions.
   3  *
   4  *              This program is free software; you can redistribute it and/or
   5  *              modify it under the terms of the GNU General Public License
   6  *              as published by the Free Software Foundation; either version
   7  *              2 of the License, or (at your option) any later version.
   8  *
   9  * Authors:     Richard Alpe <richard.alpe@ericsson.com>
  10  */
  11
  12 #include <stdio.h>
  13 #include <stdint.h>
  14 #include <linux/tipc.h>
  15
  16 #include "misc.h"
  17
  18 #define IN_RANGE(val, low, high) ((val) <= (high) && (val) >= (low))
  19
  20 uint32_t str2addr(char *str)
  21 {
  22         unsigned int z, c, n;
  23         char dummy;
  24
  25         if (sscanf(str, "%u.%u.%u%c", &z, &c, &n, &dummy) != 3) {
  26                 fprintf(stderr, "invalid network address, syntax: Z.C.N\n");
  27                 return 0;
  28         }
  29
  30         if (IN_RANGE(z, 0, 255) && IN_RANGE(c, 0, 4095) && IN_RANGE(n, 0, 4095))
  31                 return tipc_addr(z, c, n);
  32
  33         fprintf(stderr, "invalid network address \"%s\"\n", str);
  34         return 0;
  35 }