tDon't use values for range or stats when ioctls fail - spoon - dwm status utility (2f30 fork)
 (HTM) git clone git://src.adamsgaard.dk/spoon
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       ---
 (DIR) commit 0fb222e9af1375535203f10940071164dfad2d13
 (DIR) parent 44fc6dd75e411a57fda64db17cc060c6cd49b179
 (HTM) Author: lostd <lostd@2f30.org>
       Date:   Wed,  2 Nov 2016 14:53:35 +0100
       
       Don't use values for range or stats when ioctls fail
       
       Diffstat:
         M wifi.c                              |       8 ++++++--
       
       1 file changed, 6 insertions(+), 2 deletions(-)
       ---
 (DIR) diff --git a/wifi.c b/wifi.c
       t@@ -144,8 +144,10 @@ wifiread(void *arg, char *buf, size_t len)
                        wrq.u.data.length = sizeof(range);
                        memset(&range, 0, sizeof(range));
                        ret = ioctl(fd, SIOCGIWRANGE, &wrq);
       -                if (ret < 0)
       +                if (ret < 0) {
                                warnx("cannot get wifi range");
       +                        continue;
       +                }
                        memset(&wrq, 0, sizeof(wrq));
                        strlcpy(wrq.ifr_name, ifa->ifa_name, IFNAMSIZ);
                        wrq.u.data.pointer = &stats;
       t@@ -153,8 +155,10 @@ wifiread(void *arg, char *buf, size_t len)
                        wrq.u.data.flags = 1;
                        memset(&stats, 0, sizeof(stats));
                        ret = ioctl(fd, SIOCGIWSTATS, &wrq);
       -                if (ret < 0)
       +                if (ret < 0) {
                                warnx("cannot get wifi stats");
       +                        continue;
       +                }
                        max_qual = &range.max_qual;
                        qual = &stats.qual;
                        DPRINTF_U(max_qual->qual);