diff -up hostname/hostname.1.rh hostname/hostname.1 --- hostname/hostname.1.rh 2012-12-06 16:18:46.000000000 +0100 +++ hostname/hostname.1 2013-03-26 12:39:24.303468313 +0100 @@ -84,6 +84,28 @@ complete FQDN of the system is returned .B "THE FQDN" below). +.LP +The function +.BR gethostname(2) +is used to get the hostname. When the +.BR "hostname \-a, \-d, \-f or \-i" +is called will +.BR gethostbyname(3) +be called. The difference in +.BR gethostname(2) +and +.BR gethostbyname(3) +is that +.BR gethostbyname(3) +is network aware, so it consults +.IR /etc/nsswitch.conf +and +.IR /etc/host.conf +to decide whether to read information in +.IR /etc/hostname +or +.IR /etc/hosts + .SS "SET NAME" When called with one argument or with the .B \-\-file @@ -109,8 +131,7 @@ command (see .B "THE FQDN" below). .LP -The host name is usually set once at system startup in -.I /etc/init.d/hostname.sh +The host name is usually set once at system startup (normally by reading the contents of a file which contains the host name, e.g. .IR /etc/hostname ). diff -up hostname/Makefile.rh hostname/Makefile --- hostname/Makefile.rh 2012-02-16 16:00:52.000000000 +0100 +++ hostname/Makefile 2013-03-26 12:39:24.303468313 +0100 @@ -3,30 +3,29 @@ CFLAGS+=-O2 -Wall # uncomment the following line if you want to install to a different base dir. #BASEDIR=/mnt/test +BINDIR:=/bin + OBJS=hostname.o hostname: $(OBJS) $(CC) $(CFLAGS) -o $@ $(OBJS) $(LDFLAGS) -lnsl - ln -fs hostname dnsdomainname - ln -fs hostname domainname - ln -fs hostname ypdomainname - ln -fs hostname nisdomainname install: hostname install -d ${BASEDIR}/usr/share/man/man1 - install -o root -g root -m 0644 hostname.1 ${BASEDIR}/usr/share/man/man1 + install -m 0644 hostname.1 ${BASEDIR}/usr/share/man/man1 + ln -fs hostname.1 ${BASEDIR}/usr/share/man/man1/dnsdomainname.1 ln -fs hostname.1 ${BASEDIR}/usr/share/man/man1/domainname.1 ln -fs hostname.1 ${BASEDIR}/usr/share/man/man1/ypdomainname.1 ln -fs hostname.1 ${BASEDIR}/usr/share/man/man1/nisdomainname.1 #install -o root -g root -m 0644 hostname.1.fr ${BASEDIR}/usr/share/man/fr/man1/hostname.1 - install -d ${BASEDIR}/bin - install -o root -g root -m 0755 hostname ${BASEDIR}/bin - ln -f hostname ${BASEDIR}/bin/dnsdomainname - ln -f hostname ${BASEDIR}/bin/domainname - ln -f hostname ${BASEDIR}/bin/nisdomainname - ln -f hostname ${BASEDIR}/bin/ypdomainname + install -d ${BASEDIR}$(BINDIR) + install -m 0755 hostname ${BASEDIR}$(BINDIR) + ln -fs hostname ${BASEDIR}$(BINDIR)/dnsdomainname + ln -fs hostname ${BASEDIR}$(BINDIR)/domainname + ln -fs hostname ${BASEDIR}$(BINDIR)/nisdomainname + ln -fs hostname ${BASEDIR}$(BINDIR)/ypdomainname clean: -rm -f $(OBJS) hostname dnsdomainname domainname nisdomainname ypdomainname