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62 lines
1.9 KiB
62 lines
1.9 KiB
From f6e20c9c6e9b50963caaf5483248d329473a6815 Mon Sep 17 00:00:00 2001
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From: Gerrit Renker <Gerrit.Renker@ctl.io>
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Date: Mon, 21 Jan 2019 09:23:43 -0700
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Subject: [PATCH] Scan screen: resolves #62
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---
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iw_if.c | 10 ++++++----
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iw_if.h | 2 +-
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iw_scan.c | 2 +-
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3 files changed, 8 insertions(+), 6 deletions(-)
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diff --git a/iw_if.c b/iw_if.c
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index c0b0128..d8bacbc 100644
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--- a/iw_if.c
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+++ b/iw_if.c
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@@ -87,11 +87,13 @@ int if_set_down(const char *ifname)
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return if_set_up_or_down(ifname, false);
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}
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-/** Exit handler to restore interface 'down' state on exit via on_exit(3). */
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-void if_set_down_on_exit(int rc, void *arg)
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+/** Exit handler to restore interface 'down' state on exit via atexit(3). */
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+void if_set_down_on_exit(void)
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{
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- if (if_set_down(arg) < 0) {
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- err_msg("unable to restore %s interface state - set down manually", arg);
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+ const char *ifname = conf_ifname();
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+
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+ if (ifname && if_set_down(ifname) < 0) {
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+ err_msg("unable to restore %s interface state - set down manually", ifname);
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}
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}
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diff --git a/iw_if.h b/iw_if.h
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index 50f5a47..e2199d3 100644
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--- a/iw_if.h
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+++ b/iw_if.h
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@@ -76,7 +76,7 @@ struct if_info {
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};
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extern bool if_is_up(const char *ifname);
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extern int if_set_up(const char *ifname);
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-extern void if_set_down_on_exit(int rc, void *arg);
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+extern void if_set_down_on_exit(void);
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extern void if_getinf(const char *ifname, struct if_info *info);
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/**
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diff --git a/iw_scan.c b/iw_scan.c
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index 18e9e06..e2b3067 100644
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--- a/iw_scan.c
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+++ b/iw_scan.c
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@@ -430,7 +430,7 @@ void *do_scan(void *sr_ptr)
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if (if_set_up(conf_ifname()) < 0)
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err_sys("Can not bring up interface '%s'", conf_ifname());
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- if (on_exit(if_set_down_on_exit, (void *)conf_ifname()) < 0)
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+ if (atexit(if_set_down_on_exit) < 0)
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snprintf(sr->msg, sizeof(sr->msg), "Warning: unable to restore %s down state on exit", conf_ifname());
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break;
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}
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--
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2.17.1
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