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Diffstat (limited to 'i/pc104/initrd/conf/busybox/networking/hostname.c')
-rw-r--r--i/pc104/initrd/conf/busybox/networking/hostname.c101
1 files changed, 101 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/networking/hostname.c b/i/pc104/initrd/conf/busybox/networking/hostname.c
new file mode 100644
index 0000000..3f6a658
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/networking/hostname.c
@@ -0,0 +1,101 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini hostname implementation for busybox
+ *
+ * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
+ *
+ * adjusted by Erik Andersen <andersen@codepoet.org> to remove
+ * use of long options and GNU getopt. Improved the usage info.
+ *
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "busybox.h"
+
+static void do_sethostname(char *s, int isfile)
+{
+ FILE *f;
+
+ if (!s)
+ return;
+ if (!isfile) {
+ if (sethostname(s, strlen(s)) < 0) {
+ if (errno == EPERM)
+ bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
+ 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);
+ }
+ if (ENABLE_FEATURE_CLEAN_UP)
+ fclose(f);
+ }
+}
+
+int hostname_main(int argc, char **argv);
+int hostname_main(int argc, char **argv)
+{
+ enum {
+ OPT_d = 0x1,
+ OPT_f = 0x2,
+ OPT_i = 0x4,
+ OPT_s = 0x8,
+ OPT_F = 0x10,
+ OPT_dfis = 0xf,
+ };
+
+ char buf[256];
+ char *hostname_str;
+
+ if (argc < 1)
+ bb_show_usage();
+
+ getopt32(argc, argv, "dfisF:", &hostname_str);
+
+ /* Output in desired format */
+ if (option_mask32 & OPT_dfis) {
+ struct hostent *hp;
+ char *p;
+ gethostname(buf, sizeof(buf));
+ hp = xgethostbyname(buf);
+ p = strchr(hp->h_name, '.');
+ if (option_mask32 & OPT_f) {
+ puts(hp->h_name);
+ } else if (option_mask32 & OPT_s) {
+ if (p != NULL) {
+ *p = '\0';
+ }
+ puts(hp->h_name);
+ } else if (option_mask32 & OPT_d) {
+ if (p)
+ puts(p + 1);
+ } else if (option_mask32 & OPT_i) {
+ while (hp->h_addr_list[0]) {
+ printf("%s ", inet_ntoa(*(struct in_addr *) (*hp->h_addr_list++)));
+ }
+ puts("");
+ }
+ }
+ /* Set the hostname */
+ else if (option_mask32 & OPT_F) {
+ do_sethostname(hostname_str, 1);
+ } else if (optind < argc) {
+ do_sethostname(argv[optind], 0);
+ }
+ /* Or if all else fails,
+ * just print the current hostname */
+ else {
+ gethostname(buf, sizeof(buf));
+ puts(buf);
+ }
+ return 0;
+}