15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * University Copyright- Copyright (c) 1982, 1986, 1988
24 * The Regents of the University of California
25 * All Rights Reserved
26 *
27 * University Acknowledgment- Portions of this document are derived from
28 * software developed by the University of California, Berkeley, and its
29 * contributors.
30 */
31
32 /*
33 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
34 * Use is subject to license terms.
35 */
36
37 /* Portions Copyright 2007 Jeremy Teo */
38 /* Portions Copyright 2006 Stephen P. Potter */
39 #pragma ident "%Z%%M% %I% %E% SMI"
40
41 #include <unistd.h>
42 #include <stdio.h>
43 #include <string.h>
44 #include <locale.h>
45 #include <libgen.h>
46 #include <stdlib.h>
47 #include <errno.h>
48 #include <netdb.h>
49
50 #ifndef TEXT_DOMAIN /* should be defined by cc -D */
51 #define TEXT_DOMAIN "SYS_TEST" /* use this only if it wasn't */
52 #endif
53
54 static char *progname;
55
56 static void
57 usage(void)
58 {
59 (void) fprintf(stderr, gettext("usage: %s [system_name]\n"),
60 basename(progname));
61 exit(1);
62 }
63
64 int
65 main(int argc, char *argv[])
66 {
67 char *nodename = NULL;
68 char c_hostname[MAXHOSTNAMELEN];
69 int optlet;
70 char *optstring = "?";
71
72 (void) setlocale(LC_ALL, "");
73 (void) textdomain(TEXT_DOMAIN);
74
75 progname = argv[0];
76
77 opterr = 0;
78 while ((optlet = getopt(argc, argv, optstring)) != -1) {
79 switch (optlet) {
80 case '?':
81 usage();
82 }
83 }
84
85 /*
86 * if called with no options, just print out the hostname/nodename
87 */
88 if (argc <= optind) {
89 if (gethostname(c_hostname, sizeof (c_hostname)) < 0) {
90 (void) fprintf(stderr,
91 gettext("%s: unable to obtain hostname\n"),
92 basename(progname));
93 exit(1);
94 } else {
95 (void) fprintf(stdout, "%s\n", c_hostname);
96 }
97 } else {
98 /*
99 * if called with an argument,
100 * we have to try to set the new hostname/nodename
101 */
102 if (argc > optind + 1)
103 usage(); /* too many arguments */
104
105 nodename = argv[optind];
106 if (sethostname(nodename, strlen(nodename)) < 0) {
107 int err = errno;
108 (void) fprintf(stderr,
109 gettext("%s: error in setting name: %s\n"),
110 basename(progname), strerror(err));
111 exit(1);
112 }
113 }
114 return (0);
115 }
|
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * University Copyright- Copyright (c) 1982, 1986, 1988
24 * The Regents of the University of California
25 * All Rights Reserved
26 *
27 * University Acknowledgment- Portions of this document are derived from
28 * software developed by the University of California, Berkeley, and its
29 * contributors.
30 */
31
32 /*
33 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
34 * Use is subject to license terms.
35 *
36 * Copyright 2016 RackTop Systems.
37 */
38
39 /* Portions Copyright 2007 Jeremy Teo */
40 /* Portions Copyright 2006 Stephen P. Potter */
41
42 #include <unistd.h>
43 #include <stdio.h>
44 #include <string.h>
45 #include <locale.h>
46 #include <libgen.h>
47 #include <stdlib.h>
48 #include <errno.h>
49 #include <netdb.h>
50
51 extern int getdomainname(char *name, int namelen);
52 extern int setdomainname(char *domain, int len);
53
54 #ifndef TEXT_DOMAIN /* should be defined by cc -D */
55 #define TEXT_DOMAIN "SYS_TEST" /* use this only if it wasn't */
56 #endif
57
58 static char *progname;
59
60 static void
61 usage(void)
62 {
63 (void) fprintf(stderr, gettext("usage: %s [-d|-f] [hostname|domain]\n"),
64 basename(progname));
65 exit(1);
66 }
67
68 int
69 main(int argc, char *argv[])
70 {
71 int optlet, dflag = 0, fflag = 0;
72 char *optstring = "df?";
73
74 (void) setlocale(LC_ALL, "");
75 (void) textdomain(TEXT_DOMAIN);
76
77 progname = argv[0];
78
79 opterr = 0;
80 while ((optlet = getopt(argc, argv, optstring)) != -1) {
81 switch (optlet) {
82 case 'd':
83 dflag++;
84 break;
85 case 'f':
86 fflag++;
87 break;
88 case '?':
89 usage();
90 }
91 }
92
93 if (dflag && fflag)
94 usage();
95
96 /*
97 * if called with no options, just print out the hostname/domain
98 */
99 if (argc <= optind) {
100 char c_hostname[MAXHOSTNAMELEN];
101 if (gethostname(c_hostname, sizeof (c_hostname)) < 0) {
102 (void) fprintf(stderr,
103 gettext("%s: unable to obtain hostname\n"),
104 basename(progname));
105 exit(1);
106 }
107 if (dflag || fflag) {
108 char c_domain[MAXHOSTNAMELEN];
109 if (getdomainname(c_domain, sizeof (c_domain)) < 0) {
110 (void) fprintf(stderr,
111 gettext("%s: unable to obtain domain\n"),
112 basename(progname));
113 exit(1);
114 }
115 /* Might not actually get a domain back */
116 if (fflag && *c_domain)
117 (void) fprintf(stdout, "%s.%s\n",
118 c_hostname, c_domain);
119 else
120 (void) fprintf(stdout, "%s\n",
121 dflag ? c_domain : c_hostname);
122 } else {
123 (void) fprintf(stdout, "%s\n", c_hostname);
124 }
125 } else {
126 /*
127 * if called with an argument,
128 * we have to try to set the new hostname/domain
129 */
130 if (argc > optind + 1)
131 usage(); /* too many arguments */
132 if (fflag)
133 usage(); /* can't set fqdn this way */
134 if (dflag) {
135 char *domain = argv[optind];
136 if (setdomainname(domain, strlen(domain)) < 0) {
137 int err = errno;
138 (void) fprintf(stderr,
139 gettext("%s: error setting domain: %s\n"),
140 basename(progname), strerror(err));
141 exit(1);
142 }
143 } else {
144 char *hostname = argv[optind];
145 if (sethostname(hostname, strlen(hostname)) < 0) {
146 int err = errno;
147 (void) fprintf(stderr,
148 gettext("%s: error setting hostname: %s\n"),
149 basename(progname), strerror(err));
150 exit(1);
151 }
152 }
153 }
154 return (0);
155 }
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