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Add a -V --verbose flag to enable the overly verbose list reciept logging.

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Update interface flags only if it would provoke an actual change.
This commit is contained in:
Nicholas J. Kain 2011-04-30 07:30:07 -04:00
parent e96dab80fe
commit b3f9115689
2 changed files with 27 additions and 16 deletions
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21
ifchd/ifchd.c Normal file → Executable file
View File

@ -1,7 +1,7 @@
/* ifchd.c - interface change daemon
* Time-stamp: <2010-12-01 12:19:39 njk>
* Time-stamp: <2011-04-30 07:26:54 nk>
*
* (C) 2004-2010 Nicholas J. Kain <njkain at gmail dot com>
* (C) 2004-2011 Nicholas J. Kain <njkain at gmail dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -99,6 +99,8 @@ static uid_t peer_uid;
static gid_t peer_gid;
static pid_t peer_pid;
static int gflags_verbose = 0;
/* Lists of nameservers and search domains. Unfortunately they must be
* per-connection, since otherwise seperate clients could race against
* one another to write out unpredictable data.
@ -379,7 +381,8 @@ static void execute_list(int i)
p = curl[i]->str;
log_line("execute_list - p = '%s'", p);
if (gflags_verbose)
log_line("execute_list - p = '%s'", p);
switch (state[i]) {
case STATE_NOTHING:
@ -766,10 +769,11 @@ int main(int argc, char** argv) {
{"interface", 1, 0, 'i'},
{"help", 0, 0, 'h'},
{"version", 0, 0, 'v'},
{"verbose", 0, 0, 'V'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "dnp:qc:r:ou:g:U:G:P:i:hv", long_options,
c = getopt_long(argc, argv, "dnp:qc:r:ou:g:U:G:P:i:hvV", long_options,
&option_index);
if (c == -1)
break;
@ -780,7 +784,7 @@ int main(int argc, char** argv) {
printf(
"ifchd %s, if change daemon. Licensed under GNU GPL.\n", IFCHD_VERSION);
printf(
"Copyright (C) 2004-2010 Nicholas J. Kain\n"
"Copyright (C) 2004-2011 Nicholas J. Kain\n"
"Usage: ifchd [OPTIONS]\n"
" -d, --detach detach from TTY and daemonize\n"
" -n, --nodetach stay attached to TTY\n"
@ -796,6 +800,7 @@ int main(int argc, char** argv) {
" -G, --cgroup group name of clients\n"
" -P, --cpid process id of client\n"
" -i, --interface ifchd clients may modify this interface\n"
" -V, --verbose log detailed messages\n"
" -h, --help print this help and exit\n"
" -v, --version print version information and exit\n");
exit(EXIT_FAILURE);
@ -805,7 +810,7 @@ int main(int argc, char** argv) {
printf(
"ifchd %s, if change daemon. Licensed under GNU GPL.\n", IFCHD_VERSION);
printf(
"Copyright (C) 2004-2010 Nicholas J. Kain\n"
"Copyright (C) 2004-2011 Nicholas J. Kain\n"
"This is free software; see the source for copying conditions. There is NO\n"
"WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
exit(EXIT_FAILURE);
@ -899,6 +904,10 @@ int main(int argc, char** argv) {
case 'i':
add_permitted_if(optarg);
break;
case 'V':
gflags_verbose = 1;
break;
}
}

22
ifchd/linux.c Normal file → Executable file
View File

@ -1,7 +1,7 @@
/* linux.c - ifchd Linux-specific functions
* Time-stamp: <2010-11-12 18:41:15 njk>
* Time-stamp: <2011-04-30 07:28:08 nk>
*
* (C) 2004-2010 Nicholas J. Kain <njkain at gmail dot com>
* (C) 2004-2011 Nicholas J. Kain <njkain at gmail dot com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -144,14 +144,16 @@ static int set_if_flag(int idx, short flag)
log_line("%s: unknown interface: %s\n", ifnam[idx], strerror(errno));
goto out1;
}
strlcpy(ifrt.ifr_name, ifnam[idx], IFNAMSIZ);
ifrt.ifr_flags |= flag;
if (ioctl(fd, SIOCSIFFLAGS, &ifrt) < 0) {
log_line("%s: failed to set interface flags: %s\n",
ifnam[idx], strerror(errno));
goto out1;
}
ret = 0;
if (((ifrt.ifr_flags & flag ) ^ flag) & flag) {
strlcpy(ifrt.ifr_name, ifnam[idx], IFNAMSIZ);
ifrt.ifr_flags |= flag;
if (ioctl(fd, SIOCSIFFLAGS, &ifrt) < 0) {
log_line("%s: failed to set interface flags: %s\n",
ifnam[idx], strerror(errno));
goto out1;
}
} else
ret = 0;
out1:
close(fd);