diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2018-03-16 17:27:07 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2018-03-16 18:54:44 +0000 |
| commit | 8972f3fe4c5c26ef407779bec79dbd1c865b067d (patch) | |
| tree | 6abc46aaf6a4a56b41ce5599d9784fb885875043 /src/ipaccess | |
| parent | 3561bd48976dbee8dbd4659dad15be85a3e79ace (diff) | |
abisip-find: Improve use information output
Interestingly, SO_BINDTODEVICE used to bind to a specific iface
requires root permissions. However, the same target can be accomplished
by binding to a local IP addr set on the target interface, which doesn't
require root permissions in this case.
Change-Id: Ie123c45005d68b186cb06538f7bd31f3b2513007
Diffstat (limited to 'src/ipaccess')
| -rw-r--r-- | src/ipaccess/abisip-find.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/ipaccess/abisip-find.c b/src/ipaccess/abisip-find.c index 03f579b2d..21ed50e5a 100644 --- a/src/ipaccess/abisip-find.c +++ b/src/ipaccess/abisip-find.c @@ -436,9 +436,11 @@ int main(int argc, char **argv) handle_options(argc, argv); - if (!cmdline_opts.ifname) - fprintf(stdout, "- You might need to specify the outgoing\n" - " network interface, e.g. ``%s eth0''\n", argv[0]); + if (!cmdline_opts.ifname && !cmdline_opts.bind_ip) + fprintf(stdout, "- You might need to specify the outgoing network interface,\n" + " e.g. ``%s eth0'' (requires root permissions),\n" + " or alternatively use -b to bind to the source address\n" + " assigned to that interface\n", argv[0]); if (!cmdline_opts.list_view) fprintf(stdout, "- You may find the --list-view option convenient.\n"); else if (cmdline_opts.send_interval >= cmdline_opts.list_view_timeout) |