diff options
Diffstat (limited to 'contrib/isc-dhcp/client/dhclient.c')
| -rw-r--r-- | contrib/isc-dhcp/client/dhclient.c | 72 |
1 files changed, 51 insertions, 21 deletions
diff --git a/contrib/isc-dhcp/client/dhclient.c b/contrib/isc-dhcp/client/dhclient.c index d2e13424c763..817a9e258285 100644 --- a/contrib/isc-dhcp/client/dhclient.c +++ b/contrib/isc-dhcp/client/dhclient.c @@ -41,7 +41,7 @@ #ifndef lint static char ocopyright[] = -"$Id: dhclient.c,v 1.129.2.12 2002/11/07 23:26:38 dhankins Exp $ Copyright (c) 1995-2002 Internet Software Consortium. All rights reserved.\n"; +"$Id: dhclient.c,v 1.129.2.16 2003/04/26 21:51:39 dhankins Exp $ Copyright (c) 1995-2002 Internet Software Consortium. All rights reserved.\n"; #endif /* not lint */ #include "dhcpd.h" @@ -192,6 +192,8 @@ int main (argc, argv, envp) if (++i == argc) usage (); relay = argv [i]; + } else if (!strcmp (argv [i], "-nw")) { + nowait = 1; } else if (!strcmp (argv [i], "-n")) { /* do not start up any interfaces */ interfaces_requested = 1; @@ -212,8 +214,6 @@ int main (argc, argv, envp) } else if (!strcmp (argv [i], "--version")) { log_info ("isc-dhclient-%s", DHCP_VERSION); exit (0); - } else if (!strcmp (argv [i], "-nw")) { - nowait = 1; } else if (argv [i][0] == '-') { usage (); } else { @@ -252,15 +252,24 @@ int main (argc, argv, envp) /* first kill of any currently running client */ if (release_mode) { - /* XXX inelegant hack to prove concept */ - char command[1024]; - -#if !defined (NO_SNPRINTF) - snprintf (command, 1024, "kill `cat %s`", path_dhclient_pid); -#else - sprintf (command, "kill `cat %s`", path_dhclient_pid); -#endif - system (command); + FILE *pidfd; + pid_t oldpid; + long temp; + int e; + + oldpid = 0; + if ((pidfd = fopen(path_dhclient_pid, "r")) != NULL) { + e = fscanf(pidfd, "%ld\n", &temp); + oldpid = (pid_t)temp; + + if (e != 0 && e != EOF) { + if (oldpid) { + if (kill(oldpid, SIGTERM) == 0) + unlink(path_dhclient_pid); + } + } + fclose(pidfd); + } } if (!quiet) { @@ -1869,10 +1878,17 @@ void make_discover (client, lease) /* Set up the option buffer... */ client -> packet_length = cons_options ((struct packet *)0, &client -> packet, - (struct lease *)0, client, 0, - (struct option_state *)0, options, - &global_scope, 0, 0, 0, (struct data_string *)0, + (struct lease *)0, client, + /* maximum packet size */1500, + (struct option_state *)0, + options, + /* scope */ &global_scope, + /* overload */ 0, + /* terminate */0, + /* bootpp */0, + (struct data_string *)0, client -> config -> vendor_space_name); + option_state_dereference (&options, MDL); if (client -> packet_length < BOOTP_MIN_LEN) client -> packet_length = BOOTP_MIN_LEN; @@ -1936,10 +1952,17 @@ void make_request (client, lease) /* Set up the option buffer... */ client -> packet_length = cons_options ((struct packet *)0, &client -> packet, - (struct lease *)0, client, 0, - (struct option_state *)0, client -> sent_options, - &global_scope, 0, 0, 0, (struct data_string *)0, + (struct lease *)0, client, + /* maximum packet size */1500, + (struct option_state *)0, + client -> sent_options, + /* scope */ &global_scope, + /* overload */ 0, + /* terminate */0, + /* bootpp */0, + (struct data_string *)0, client -> config -> vendor_space_name); + option_state_dereference (&client -> sent_options, MDL); if (client -> packet_length < BOOTP_MIN_LEN) client -> packet_length = BOOTP_MIN_LEN; @@ -2065,10 +2088,17 @@ void make_release (client, lease) /* Set up the option buffer... */ client -> packet_length = cons_options ((struct packet *)0, &client -> packet, - (struct lease *)0, client, 0, - (struct option_state *)0, options, - &global_scope, 0, 0, 0, (struct data_string *)0, + (struct lease *)0, client, + /* maximum packet size */1500, + (struct option_state *)0, + options, + /* scope */ &global_scope, + /* overload */ 0, + /* terminate */0, + /* bootpp */0, + (struct data_string *)0, client -> config -> vendor_space_name); + if (client -> packet_length < BOOTP_MIN_LEN) client -> packet_length = BOOTP_MIN_LEN; option_state_dereference (&options, MDL); |