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wifi: Fix coding style
[slstatus.git] / components / wifi.c
diff --git a/components/wifi.c b/components/wifi.c
index 9ecb8e1..7dfa4e2 100644 (file)
--- a/components/wifi.c
+++ b/components/wifi.c
@@ -1,89 +1,166 @@
 /* See LICENSE file for copyright and license details. */
 /* See LICENSE file for copyright and license details. */
-#include <err.h>
+#include <errno.h>
 #include <ifaddrs.h>
 #include <ifaddrs.h>
-#include <linux/wireless.h>
-#include <sys/socket.h>
 #include <stdio.h>
 #include <stdio.h>
-#include <limits.h>
 #include <string.h>
 #include <string.h>
+#include <sys/socket.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
 
 #include "../util.h"
 
 #include <sys/ioctl.h>
 #include <unistd.h>
 
 #include "../util.h"
 
-const char *
-wifi_perc(const char *iface)
-{
-       int i, cur;
-       float perc;
-       int total = 70; /* the max of /proc/net/wireless */
-       char *p, *datastart;
-       char path[PATH_MAX];
-       char status[5];
-       FILE *fp;
-
-       snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
-       fp = fopen(path, "r");
-       if (fp == NULL) {
-               warn("Failed to open file %s", path);
-               return NULL;
-       }
-       p = fgets(status, 5, fp);
-       fclose(fp);
-       if(!p || strcmp(status, "up\n") != 0) {
-               return NULL;
-       }
+#if defined(__linux__)
+       #include <limits.h>
+       #include <linux/wireless.h>
 
 
-       fp = fopen("/proc/net/wireless", "r");
-       if (fp == NULL) {
-               warn("Failed to open file /proc/net/wireless");
-               return NULL;
-       }
+       const char *
+       wifi_perc(const char *iface)
+       {
+               int i, cur;
+               int total = 70; /* the max of /proc/net/wireless */
+               char *p, *datastart;
+               char path[PATH_MAX];
+               char status[5];
+               FILE *fp;
+
+               snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface,
+                        "/operstate");
+               if (!(fp = fopen(path, "r"))) {
+                       fprintf(stderr, "fopen '%s': %s\n", path,
+                               strerror(errno));
+                       return NULL;
+               }
+               p = fgets(status, 5, fp);
+               fclose(fp);
+               if(!p || strcmp(status, "up\n") != 0) {
+                       return NULL;
+               }
+
+               if (!(fp = fopen("/proc/net/wireless", "r"))) {
+                       fprintf(stderr, "fopen '/proc/net/wireless': %s\n",
+                               strerror(errno));
+                       return NULL;
+               }
+
+               for (i = 0; i < 3; i++) {
+                       if (!(p = fgets(buf, sizeof(buf) - 1, fp)))
+                               break;
+               }
+               fclose(fp);
+               if (i < 2 || !p) {
+                       return NULL;
+               }
+
+               if (!(datastart = strstr(buf, iface))) {
+                       return NULL;
+               }
+
+               datastart = (datastart+(strlen(iface)+1));
+               sscanf(datastart + 1, " %*d   %d  %*d  %*d\t\t  %*d\t   "
+                      "%*d\t\t%*d\t\t %*d\t  %*d\t\t %*d", &cur);
 
 
-       for (i = 0; i < 3; i++) {
-               if (!(p = fgets(buf, sizeof(buf) - 1, fp)))
-                       break;
+               return bprintf("%d", (int)((float)cur / total * 100));
        }
        }
-       fclose(fp);
-       if (i < 2 || !p)
-               return NULL;
 
 
-       if ((datastart = strstr(buf, iface)) == NULL)
-               return NULL;
+       const char *
+       wifi_essid(const char *iface)
+       {
+               static char id[IW_ESSID_MAX_SIZE+1];
+               int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+               struct iwreq wreq;
 
 
-       datastart = (datastart+(strlen(iface)+1));
-       sscanf(datastart + 1, " %*d   %d  %*d  %*d                %*d      %*d          %*d              %*d      %*d            %*d", &cur);
+               memset(&wreq, 0, sizeof(struct iwreq));
+               wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
+               snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
 
 
-       perc = (float)cur / total * 100.0;
+               if (sockfd < 0) {
+                       fprintf(stderr, "socket 'AF_INET': %s\n",
+                               strerror(errno));
+                       return NULL;
+               }
+               wreq.u.essid.pointer = id;
+               if (ioctl(sockfd,SIOCGIWESSID, &wreq) < 0) {
+                       fprintf(stderr, "ioctl 'SIOCGIWESSID': %s\n", strerror(errno));
+                       close(sockfd);
+                       return NULL;
+               }
 
 
-       return bprintf("%.0f", perc);
-}
+               close(sockfd);
 
 
-const char *
-wifi_essid(const char *iface)
-{
-       static char id[IW_ESSID_MAX_SIZE+1];
-       int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
-       struct iwreq wreq;
+               if (!strcmp(id, "")) {
+                       return NULL;
+               }
 
 
-       memset(&wreq, 0, sizeof(struct iwreq));
-       wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
-       snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
+               return id;
+       }
+#elif defined(__OpenBSD__)
+       #include <net/if.h>
+       #include <net/if_media.h>
+       #include <net80211/ieee80211.h>
+       #include <net80211/ieee80211_ioctl.h>
+       #include <stdlib.h>
+       #include <sys/types.h>
 
 
-       if (sockfd == -1) {
-               warn("Failed to get ESSID for interface %s", iface);
-               return NULL;
+       static int
+       load_ieee80211_nodereq(const char *iface, struct ieee80211_nodereq *nr)
+       {
+               struct ieee80211_bssid bssid;
+               int sockfd;
+
+               memset(&bssid, 0, sizeof(bssid));
+               memset(nr, 0, sizeof(struct ieee80211_nodereq));
+               if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+                       fprintf(stderr, "socket 'AF_INET': %s\n",
+                               strerror(errno));
+                       return 0;
+               }
+               strlcpy(bssid.i_name, iface, sizeof(bssid.i_name));
+               if ((ioctl(sockfd, SIOCG80211BSSID, &bssid)) < 0) {
+                       fprintf(stderr, "ioctl 'SIOCG80211BSSID': %s\n",
+                               strerror(errno));
+                       close(sockfd);
+                       return 0;
+               }
+               strlcpy(nr->nr_ifname, iface, sizeof(nr->nr_ifname));
+               memmove(&nr->nr_macaddr, bssid.i_bssid, sizeof(nr->nr_macaddr));
+               if ((ioctl(sockfd, SIOCG80211NODE, nr)) < 0 && nr->nr_rssi) {
+                       fprintf(stderr, "ioctl 'SIOCG80211NODE': %s\n",
+                               strerror(errno));
+                       close(sockfd);
+                       return 0;
+               }
+
+               return close(sockfd), 1;
        }
        }
-       wreq.u.essid.pointer = id;
-       if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
-               warn("Failed to get ESSID for interface %s", iface);
+
+       const char *
+       wifi_perc(const char *iface)
+       {
+               struct ieee80211_nodereq nr;
+               int q;
+
+               if (load_ieee80211_nodereq(iface, &nr)) {
+                       if (nr.nr_max_rssi) {
+                               q = IEEE80211_NODEREQ_RSSI(&nr);
+                       } else {
+                               q = nr.nr_rssi >= -50 ? 100 : (nr.nr_rssi <= -100 ? 0 :
+                               (2 * (nr.nr_rssi + 100)));
+                       }
+                       return bprintf("%d", q);
+               }
+
                return NULL;
        }
 
                return NULL;
        }
 
-       close(sockfd);
+       const char *
+       wifi_essid(const char *iface)
+       {
+               struct ieee80211_nodereq nr;
+
+               if (load_ieee80211_nodereq(iface, &nr)) {
+                       return bprintf("%s", nr.nr_nwid);
+               }
 
 
-       if (strcmp(id, "") == 0)
                return NULL;
                return NULL;
-       else
-               return id;
-}
+       }
+#endif