forked from pool/util-linux
145 lines
3.7 KiB
Diff
145 lines
3.7 KiB
Diff
Index: util-linux-ng-2.12r+git20070530/misc-utils/hostid.1
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===================================================================
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--- /dev/null
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+++ util-linux-ng-2.12r+git20070530/misc-utils/hostid.1
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@@ -0,0 +1,24 @@
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+.TH hostid 1
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+.SH NAME
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+hostid \- set or print system's host id.
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+.SH SYNTAX
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+.B hostid
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+[\-v] [\|\fIdecimal-id\fR\|]
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+.SH DESCRIPTION
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+.\".NXR "hostid command"
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+The
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+.B hostid
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+command prints the current host id number in hexadecimal and both
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+decimal and hexadecimal in parenthesis if the \-v option is given.
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+This numeric value is expected to be unique across all hosts
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+and is normally set to resemble the host's Internet address.
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+
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+Only the super-user can set the hostid by giving an argument. This value is
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+stored in the file /etc/hostid and need only be performed once.
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+
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+.SH AUTHOR
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+Hostid is written by Mitch DSouza \- (m.dsouza@mrc-apu.cam.ac.uk)
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+
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+.SH SEE ALSO
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+gethostid(2), sethostid(2)
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+
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Index: util-linux-ng-2.12r+git20070530/misc-utils/hostid.c
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===================================================================
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--- /dev/null
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+++ util-linux-ng-2.12r+git20070530/misc-utils/hostid.c
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@@ -0,0 +1,88 @@
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+/* Program hostid. Changed on 7.10.1997 <ms@suse.de>
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+ New: - Hostid 0 is not permitted.
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+ - Set hostid dezimal or hexadezimal, both possible.
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+ - Maximum Value for id is tested
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+ - Wrong Parameters are caught
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+ Nov 13 2003 - cleanup, mmj@suse.de
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+ */
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+
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <unistd.h>
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+#include <errno.h>
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+
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+void usage(void);
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+
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+void usage()
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+{
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+ printf ("usage : hostid [-h] [-v] [<id>]\n\n"
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+ "no options: print hostid as hexadecimal number\n"
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+ "-h print this helptext\n"
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+ "-v print hostid decimal and hexadecimal\n"
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+ "<id> set the hostid to <id>\n\n"
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+ "The id String can be specified as\n"
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+ " - decimal number\n"
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+ " - hexadecimal number preceded by 0x\n"
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+ " - octal number preceded by 0 \n\n"
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+ "Remarks:\n"
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+ " - only root can set the hostid\n"
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+ " - it's not possible to set the hostid to 0\n\n");
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+}
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+
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+int main (int argc, char *argv[])
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+{
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+ long id;
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+ int verbose = 0;
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+
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+ if (argc > 2) {
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+ printf ("wrong arguments\n");
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+ usage();
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+ exit(1);
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+ }
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+
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+ if (argc == 2 && strcmp(argv[1], "-h") == 0) {
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+ usage();
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+ exit(0);
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+ }
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+
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+ if (argc == 2 && strcmp(argv[1], "-v") == 0) {
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+ verbose = 1;
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+ argc--;
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+ argv++;
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+ }
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+
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+ switch (argc) {
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+ case 2:
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+ id = strtol(argv[1], NULL, 0);
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+ if (errno == ERANGE) {
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+ printf ("Overflow: given string was out of range\n");
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+ exit(1);
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+ }
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+
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+ if (id == 0) {
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+ printf ("value not possible: Abort\n");
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+ usage();
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+ exit(1);
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+ }
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+ if (sethostid(id) != 0) {
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+ perror("sethostid");
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+ exit(1);
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+ }
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+ break;
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+
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+ case 1:
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+ id = gethostid();
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+ if(id && verbose) {
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+ printf("Hostid is %ld (0x%lx)\n", id, id);
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+ } else if(id) {
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+ printf("0x%lx\n", id);
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+ } else {
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+ printf ("Error while trying: gethostid\n");
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+ exit(1);
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+ }
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+ break;
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+ }
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+
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+ return 0;
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+}
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Index: util-linux-ng-2.12r+git20070530/misc-utils/Makefile.am
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===================================================================
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--- util-linux-ng-2.12r+git20070530.orig/misc-utils/Makefile.am
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+++ util-linux-ng-2.12r+git20070530/misc-utils/Makefile.am
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@@ -5,7 +5,7 @@ EXTRA_DIST = README.flushb
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bin_PROGRAMS =
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usrbinexec_PROGRAMS = cal ddate logger look mcookie \
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- namei script whereis
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+ namei script whereis hostid
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EXTRA_DIST += README.cal README.ddate README.namei README.namei2
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mcookie_SOURCES = mcookie.c ../lib/md5.c
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@@ -15,7 +15,7 @@ usrbinexec_SCRIPTS = chkdupexe scriptrep
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CLEANFILES = chkdupexe scriptreplay
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man_MANS = cal.1 chkdupexe.1 ddate.1 logger.1 look.1 mcookie.1 \
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- namei.1 script.1 whereis.1 scriptreplay.1
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+ namei.1 script.1 whereis.1 scriptreplay.1 hostid.1
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if HAVE_NCURSES
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cal_LDADD = -lncurses
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