1 /* vi: set sw=4 ts=4: */
3 * Mini hostname implementation for busybox
5 * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
7 * adjusted by Erik Andersen <andersen@codepoet.org> to remove
8 * use of long options and GNU getopt. Improved the usage info.
10 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
12 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
17 static void do_sethostname(char *s
, int isfile
)
22 parser_t
*parser
= config_open2(s
, xfopen_for_read
);
23 while (config_read(parser
, &s
, 1, 1, "# \t", PARSE_NORMAL
& ~PARSE_GREEDY
)) {
26 if (ENABLE_FEATURE_CLEAN_UP
)
28 } else if (sethostname(s
, strlen(s
)) < 0) {
30 bb_error_msg_and_die(bb_msg_perm_denied_are_you_root
);
31 bb_perror_msg_and_die("sethostname");
35 int hostname_main(int argc
, char **argv
) MAIN_EXTERNALLY_VISIBLE
;
36 int hostname_main(int argc
, char **argv
)
53 getopt32(argv
, "dfisF:", &hostname_str
);
55 buf
= safe_gethostname();
57 /* Output in desired format */
58 if (option_mask32
& OPT_dfis
) {
61 hp
= xgethostbyname(buf
);
62 p
= strchr(hp
->h_name
, '.');
63 if (option_mask32
& OPT_f
) {
65 } else if (option_mask32
& OPT_s
) {
69 } else if (option_mask32
& OPT_d
) {
72 } else if (option_mask32
& OPT_i
) {
73 while (hp
->h_addr_list
[0]) {
74 printf("%s ", inet_ntoa(*(struct in_addr
*) (*hp
->h_addr_list
++)));
79 /* Set the hostname */
80 else if (option_mask32
& OPT_F
) {
81 do_sethostname(hostname_str
, 1);
83 do_sethostname(argv
[0], 0);
85 /* Or if all else fails,
86 * just print the current hostname */
90 if (ENABLE_FEATURE_CLEAN_UP
)