Diff of /tags/mkinitrd-6_1_11/busybox/networking/hostname.c

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	revision 815 by niro, Sat Sep 1 22:45:15 2007 UTC	revision 816 by niro, Fri Apr 24 18:33:46 2009 UTC
#	Line 1	Line 1
1	/* vi: set sw=4 ts=4: */	/* vi: set sw=4 ts=4: */
2	/*	/*
	* $Id: hostname.c,v 1.1 2007-09-01 22:43:53 niro Exp $
3	* Mini hostname implementation for busybox	* Mini hostname implementation for busybox
4	*	*
5	* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>	* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
#	Line 13	Line 12
12	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
13	*/	*/
14
15	#include "busybox.h"	#include "libbb.h"
16
17	static void do_sethostname(char *s, int isfile)	static void do_sethostname(char *s, int isfile)
18	{	{
	FILE *f;
19	if (!s)	if (!s)
20	return;	return;
21	if (!isfile) {	if (isfile) {
22	if (sethostname(s, strlen(s)) < 0) {	parser_t *parser = config_open2(s, xfopen_for_read);
23	if (errno == EPERM)	while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL & ~PARSE_GREEDY)) {
24	bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);	do_sethostname(s, 0);
	else
	bb_perror_msg_and_die("sethostname");
	}
	} else {
	f = xfopen(s, "r");
	while (fgets(bb_common_bufsiz1, sizeof(bb_common_bufsiz1), f) != NULL) {
	if (bb_common_bufsiz1[0] == '#') {
	continue;
	}
	chomp(bb_common_bufsiz1);
	do_sethostname(bb_common_bufsiz1, 0);
25	}	}
26	if (ENABLE_FEATURE_CLEAN_UP)	if (ENABLE_FEATURE_CLEAN_UP)
27	fclose(f);	config_close(parser);
28		} else if (sethostname(s, strlen(s)) < 0) {
29		if (errno == EPERM)
30		bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
31		bb_perror_msg_and_die("sethostname");
32	}	}
33	}	}
34
35		int hostname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
36	int hostname_main(int argc, char **argv)	int hostname_main(int argc, char **argv)
37	{	{
38	enum {	enum {
#	Line 49  int hostname_main(int argc, char **argv)	Line 40  int hostname_main(int argc, char **argv)
40	OPT_f = 0x2,	OPT_f = 0x2,
41	OPT_i = 0x4,	OPT_i = 0x4,
42	OPT_s = 0x8,	OPT_s = 0x8,
43		OPT_F = 0x10,
44	OPT_dfis = 0xf,	OPT_dfis = 0xf,
45	};	};
46
47	char buf[256];	char *buf;
48	char *hostname_str = NULL;	char *hostname_str;
49
50	if (argc < 1)	if (argc < 1)
51	bb_show_usage();	bb_show_usage();
52
53	getopt32(argc, argv, "dfisF:", &hostname_str);	getopt32(argv, "dfisF:", &hostname_str);
54		argv += optind;
55		buf = safe_gethostname();
56
57	/* Output in desired format */	/* Output in desired format */
58	if (option_mask32 & OPT_dfis) {	if (option_mask32 & OPT_dfis) {
59	struct hostent *hp;	struct hostent *hp;
60	char *p;	char *p;
	gethostname(buf, sizeof(buf));
61	hp = xgethostbyname(buf);	hp = xgethostbyname(buf);
62	p = strchr(hp->h_name, '.');	p = strchr(hp->h_name, '.');
63	if (option_mask32 & OPT_f) {	if (option_mask32 & OPT_f) {
64	puts(hp->h_name);	puts(hp->h_name);
65	} else if (option_mask32 & OPT_s) {	} else if (option_mask32 & OPT_s) {
66	if (p != NULL) {	if (p)
67	*p = 0;	*p = '\0';
	}
68	puts(hp->h_name);	puts(hp->h_name);
69	} else if (option_mask32 & OPT_d) {	} else if (option_mask32 & OPT_d) {
70	if (p)	if (p)
#	Line 81  int hostname_main(int argc, char **argv)	Line 73  int hostname_main(int argc, char **argv)
73	while (hp->h_addr_list[0]) {	while (hp->h_addr_list[0]) {
74	printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));	printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
75	}	}
76	puts("");	bb_putchar('\n');
77	}	}
78	}	}
79	/* Set the hostname */	/* Set the hostname */
80	else if (hostname_str != NULL) {	else if (option_mask32 & OPT_F) {
81	do_sethostname(hostname_str, 1);	do_sethostname(hostname_str, 1);
82	} else if (optind < argc) {	} else if (argv[0]) {
83	do_sethostname(argv[optind], 0);	do_sethostname(argv[0], 0);
84	}	}
85	/* Or if all else fails,	/* Or if all else fails,
86	* just print the current hostname */	* just print the current hostname */
87	else {	else {
	gethostname(buf, sizeof(buf));
88	puts(buf);	puts(buf);
89	}	}
90	return 0;	if (ENABLE_FEATURE_CLEAN_UP)
91		free(buf);
92		return EXIT_SUCCESS;
93	}	}

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