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      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 (at) 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 }
     36