1 #include <stdlib.h>
2 #include <sys/types.h>
3 #include <string.h>
4 #include <fcntl.h>
5 #include <stdio.h>
6 #include <unistd.h>
7 #include <libnet.h>
8
9 /*
10 * make an address, add the defaults
11 */
12 char *
netmkaddr(char * linear,char * defnet,char * defsrv)13 netmkaddr(char *linear, char *defnet, char *defsrv)
14 {
15 static char addr[256];
16 char *cp;
17
18 /*
19 * dump network name
20 */
21 cp = strchr(linear, '!');
22 if(cp == 0){
23 if(defnet==0){
24 if(defsrv)
25 snprintf(addr, sizeof(addr), "net!%s!%s",
26 linear, defsrv);
27 else
28 snprintf(addr, sizeof(addr), "net!%s", linear);
29 }
30 else {
31 if(defsrv)
32 snprintf(addr, sizeof(addr), "%s!%s!%s", defnet,
33 linear, defsrv);
34 else
35 snprintf(addr, sizeof(addr), "%s!%s", defnet,
36 linear);
37 }
38 return addr;
39 }
40
41 /*
42 * if there is already a service, use it
43 */
44 cp = strchr(cp+1, '!');
45 if(cp)
46 return linear;
47
48 /*
49 * add default service
50 */
51 if(defsrv == 0)
52 return linear;
53 snprintf(addr, sizeof(addr), "%s!%s", linear, defsrv);
54
55 return addr;
56 }
57