Re: Small diff to make dhclient(8) go to background immediately
On 2008-05-19, Cesare Gargano [EMAIL PROTECTED] wrote: On 19/05/08 15:50 +0200, Cesare Gargano wrote: On 18/05/08 17:20 +0200, Jona Joachim wrote: I very much appreciate the work of reyk@ on dhclient to make it renew the lease when the link is lost. However it might happen that you don't have a link at the moment where you launch dhclient but you know that you might get a link afterwards. This is true when you launch your laptop somewhere where you have wifi connectivity but unfortunately you're in a spot where you don't currently receive it. If you specify 'dhcp' in hostname.if you will have to wait until dhclient times out or hit Ctrl-C at startup. This tiny patch adds an option to dhclient to tell it to just go into background and wait until you get a link. I would appreciate any comments. Thanks! Index: dhclient.c (snip diff) Ehi! Your diff is already there! cat /etc/dhclient.conf link_timeout 0; is link-timeout Ehm! Enjoy! You're right, I guess I was making things overly complicated...
Re: Small diff to make dhclient(8) go to background immediately
On 2008-05-19, Cesare Gargano [EMAIL PROTECTED] wrote: On 19/05/08 15:50 +0200, Cesare Gargano wrote: On 18/05/08 17:20 +0200, Jona Joachim wrote: I very much appreciate the work of reyk@ on dhclient to make it renew the lease when the link is lost. However it might happen that you don't have a link at the moment where you launch dhclient but you know that you might get a link afterwards. This is true when you launch your laptop somewhere where you have wifi connectivity but unfortunately you're in a spot where you don't currently receive it. If you specify 'dhcp' in hostname.if you will have to wait until dhclient times out or hit Ctrl-C at startup. This tiny patch adds an option to dhclient to tell it to just go into background and wait until you get a link. I would appreciate any comments. Thanks! Index: dhclient.c (snip diff) Ehi! Your diff is already there! cat /etc/dhclient.conf link_timeout 0; is link-timeout Ehm! Enjoy! You're right, I guess I was making things overly complicated.
Re: Small diff to make dhclient(8) go to background immediately
On 19/05/08 15:50 +0200, Cesare Gargano wrote:
On 18/05/08 17:20 +0200, Jona Joachim wrote:
I very much appreciate the work of reyk@ on dhclient to make it renew the
lease when the
link is lost. However it might happen that you don't have a link at the
moment where
you launch dhclient but you know that you might get a link afterwards.
This is true when you launch your laptop somewhere where you have wifi
connectivity
but unfortunately you're in a spot where you don't currently receive it.
If you specify 'dhcp' in hostname.if you will have to wait until dhclient
times out
or hit Ctrl-C at startup.
This tiny patch adds an option to dhclient to tell it to just go into
background and wait
until you get a link.
I would appreciate any comments.
Thanks!
Index: dhclient.c
===
RCS file: /cvs/src/sbin/dhclient/dhclient.c,v
retrieving revision 1.118
diff -u -r1.118 dhclient.c
--- dhclient.c 9 May 2008 05:19:14 - 1.118
+++ dhclient.c 18 May 2008 15:11:53 -
@@ -253,7 +253,7 @@
int
main(int argc, char *argv[])
{
- int ch, fd, quiet = 0, i = 0, pipe_fd[2];
+ int ch, fd, quiet = 0, background = 0, i = 0, pipe_fd[2];
extern char *__progname;
struct passwd *pw;
@@ -261,8 +261,11 @@
openlog(__progname, LOG_PID | LOG_NDELAY, DHCPD_LOG_FACILITY);
setlogmask(LOG_UPTO(LOG_INFO));
- while ((ch = getopt(argc, argv, c:dl:qu)) != -1)
+ while ((ch = getopt(argc, argv, bc:dl:qu)) != -1)
switch (ch) {
+ case 'b':
+ background = 1;
+ break;
case 'c':
path_dhclient_conf = optarg;
break;
@@ -319,6 +322,9 @@
read_client_conf();
+ if (background)
+ goto dispatch;
+
if (!(ifi-linkstat = interface_link_status(ifi-name))) {
fprintf(stderr, %s: no link ..., ifi-name);
if (config-link_timeout == 0) {
@@ -409,7 +415,7 @@
{
extern char *__progname;
- fprintf(stderr, usage: %s [-dqu] [-c file] [-l file] interface\n,
+ fprintf(stderr, usage: %s [-bdqu] [-c file] [-l file] interface\n,
__progname);
exit(1);
}
Ehi! Your diff is already there!
cat /etc/dhclient.conf
link_timeout 0;
is link-timeout
Ehm! Enjoy!
It works!
Re: Small diff to make dhclient(8) go to background immediately
On 18/05/08 17:20 +0200, Jona Joachim wrote:
I very much appreciate the work of reyk@ on dhclient to make it renew the
lease when the
link is lost. However it might happen that you don't have a link at the
moment where
you launch dhclient but you know that you might get a link afterwards.
This is true when you launch your laptop somewhere where you have wifi
connectivity
but unfortunately you're in a spot where you don't currently receive it.
If you specify 'dhcp' in hostname.if you will have to wait until dhclient
times out
or hit Ctrl-C at startup.
This tiny patch adds an option to dhclient to tell it to just go into
background and wait
until you get a link.
I would appreciate any comments.
Thanks!
Index: dhclient.c
===
RCS file: /cvs/src/sbin/dhclient/dhclient.c,v
retrieving revision 1.118
diff -u -r1.118 dhclient.c
--- dhclient.c 9 May 2008 05:19:14 - 1.118
+++ dhclient.c 18 May 2008 15:11:53 -
@@ -253,7 +253,7 @@
int
main(int argc, char *argv[])
{
- int ch, fd, quiet = 0, i = 0, pipe_fd[2];
+ int ch, fd, quiet = 0, background = 0, i = 0, pipe_fd[2];
extern char *__progname;
struct passwd *pw;
@@ -261,8 +261,11 @@
openlog(__progname, LOG_PID | LOG_NDELAY, DHCPD_LOG_FACILITY);
setlogmask(LOG_UPTO(LOG_INFO));
- while ((ch = getopt(argc, argv, c:dl:qu)) != -1)
+ while ((ch = getopt(argc, argv, bc:dl:qu)) != -1)
switch (ch) {
+ case 'b':
+ background = 1;
+ break;
case 'c':
path_dhclient_conf = optarg;
break;
@@ -319,6 +322,9 @@
read_client_conf();
+ if (background)
+ goto dispatch;
+
if (!(ifi-linkstat = interface_link_status(ifi-name))) {
fprintf(stderr, %s: no link ..., ifi-name);
if (config-link_timeout == 0) {
@@ -409,7 +415,7 @@
{
extern char *__progname;
- fprintf(stderr, usage: %s [-dqu] [-c file] [-l file] interface\n,
+ fprintf(stderr, usage: %s [-bdqu] [-c file] [-l file] interface\n,
__progname);
exit(1);
}
Ehi! Your diff is already there!
cat /etc/dhclient.conf
link_timeout 0;
It works!
