X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=hostname.c;h=a6e001d54459dcfb502d680c25c3818a35b1d1f8;hb=7cf9fed83f6e7bf86eb4cac324b98734739fa861;hp=ef921024b972b307b53d33bbe5d6be54f7100e51;hpb=7ab9c7ee52db8759d457819f5480378fa3aa97cc;p=oweals%2Fbusybox.git

diff --git a/hostname.c b/hostname.c
index ef921024b..a6e001d54 100644
--- a/hostname.c
+++ b/hostname.c
@@ -1,6 +1,6 @@
 /* vi: set sw=4 ts=4: */
 /*
- * $Id: hostname.c,v 1.8 2000/05/12 19:41:47 erik Exp $
+ * $Id: hostname.c,v 1.26 2001/03/09 21:24:12 andersen Exp $
  * Mini hostname implementation for busybox
  *
  * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
@@ -23,29 +23,16 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
-#include "internal.h"
+#include "busybox.h"
 #include <errno.h>
 #include <arpa/inet.h>
 #include <netdb.h>
 #include <unistd.h>
+#include <string.h>
 #include <stdio.h>
+#include <stdlib.h>
 
-static const char *hostname_usage =
-	"hostname [OPTION] {hostname | -F file}\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
-	"\nGet or set the hostname or DNS domain name. If a hostname is given\n"
-	"(or a file with the -F parameter), the host name will be set.\n\n"
-	"Options:\n"
-	"\t-s\t\tShort\n"
-
-	"\t-i\t\tAddresses for the hostname\n"
-	"\t-d\t\tDNS domain name\n"
-	"\t-F FILE\t\tUse the contents of FILE to specify the hostname\n"
-#endif
-	;
-
-
-void do_sethostname(char *s, int isfile)
+static void do_sethostname(char *s, int isfile)
 {
 	FILE *f;
 	char buf[255];
@@ -55,26 +42,17 @@ void do_sethostname(char *s, int isfile)
 	if (!isfile) {
 		if (sethostname(s, strlen(s)) < 0) {
 			if (errno == EPERM)
-				fprintf(stderr,
-						"hostname: you must be root to change the hostname\n");
+				error_msg_and_die("you must be root to change the hostname");
 			else
-				perror("sethostname");
-			exit(1);
+				perror_msg_and_die("sethostname");
 		}
 	} else {
-		if ((f = fopen(s, "r")) == NULL) {
-			perror(s);
-			exit(1);
-		} else {
-			fgets(buf, 255, f);
-			fclose(f);
-			if (buf[strlen(buf) - 1] == '\n')
-				buf[strlen(buf) - 1] = 0;
-			if (sethostname(buf, strlen(buf)) < 0) {
-				perror("sethostname");
-				exit(1);
-			}
-		}
+		f = xfopen(s, "r");
+		fgets(buf, 255, f);
+		fclose(f);
+		chomp(buf);
+		if (sethostname(buf, strlen(buf)) < 0)
+			perror_msg_and_die("sethostname");
 	}
 }
 
@@ -89,7 +67,7 @@ int hostname_main(int argc, char **argv)
 	char *s = NULL;
 
 	if (argc < 1)
-		usage(hostname_usage);
+		show_usage();
 
 	while (--argc > 0 && **(++argv) == '-') {
 		while (*(++(*argv))) {
@@ -104,14 +82,19 @@ int hostname_main(int argc, char **argv)
 				opt_domain = 1;
 				break;
 			case 'F':
-				filename = optarg;
 				if (--argc == 0) {
-					usage(hostname_usage);
+					show_usage();
+				}
+				filename = *(++argv);
+				break;
+			case '-':
+				if (strcmp(++(*argv), "file") || --argc ==0 ) {
+					show_usage();
 				}
 				filename = *(++argv);
 				break;
 			default:
-				usage(hostname_usage);
+				show_usage();
 			}
 			if (filename != NULL)
 				break;
@@ -144,5 +127,5 @@ int hostname_main(int argc, char **argv)
 			printf("%s\n", buf);
 		}
 	}
-	exit(0);
+	return(0);
 }