#include <ifaddrs.h>
#include <stdio.h>
#include <string.h>
-#include <sys/socket.h>
#include <sys/ioctl.h>
+#include <sys/socket.h>
#include <unistd.h>
#include "../util.h"
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));
+ warn("fopen '%s':", path);
return NULL;
}
p = fgets(status, 5, fp);
}
if (!(fp = fopen("/proc/net/wireless", "r"))) {
- fprintf(stderr, "fopen '/proc/net/wireless': %s\n",
- strerror(errno));
+ warn("fopen '/proc/net/wireless':");
return NULL;
}
wifi_essid(const char *iface)
{
static char id[IW_ESSID_MAX_SIZE+1];
- int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+ int sockfd;
struct iwreq wreq;
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);
- if (sockfd < 0) {
- fprintf(stderr, "socket 'AF_INET': %s\n",
- strerror(errno));
+ if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ warn("socket 'AF_INET':");
return NULL;
}
wreq.u.essid.pointer = id;
if (ioctl(sockfd,SIOCGIWESSID, &wreq) < 0) {
- fprintf(stderr, "ioctl 'SIOCGIWESSID': %s\n", strerror(errno));
+ warn("ioctl 'SIOCGIWESSID':");
close(sockfd);
return NULL;
}
#include <net/if.h>
#include <net/if_media.h>
#include <net80211/ieee80211.h>
+ #include <sys/select.h> /* before <sys/ieee80211_ioctl.h> for NBBY */
#include <net80211/ieee80211_ioctl.h>
#include <stdlib.h>
#include <sys/types.h>
{
struct ieee80211_bssid bssid;
int sockfd;
- memset(&bssid, 0, sizeof(bssid);
+
+ memset(&bssid, 0, sizeof(bssid));
memset(nr, 0, sizeof(struct ieee80211_nodereq));
- if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
- fprintf(stderr, "socket 'AF_INET': %s\n",
- strerror(errno));
+ if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ warn("socket 'AF_INET':");
return 0;
}
strlcpy(bssid.i_name, iface, sizeof(bssid.i_name));
- if ((ioctl(sockfd, SIOCG80211BSSID, &bssid)) == -1) {
- fprintf(stderr, "ioctl 'SIOCG80211BSSID': %s\n",
- strerror(errno));
+ if ((ioctl(sockfd, SIOCG80211BSSID, &bssid)) < 0) {
+ warn("ioctl 'SIOCG80211BSSID':");
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)) == -1 && nr->nr_rssi) {
- fprintf(stderr, "ioctl 'SIOCG80211NODE': %s\n",
- strerror(errno));
+ memcpy(&nr->nr_macaddr, bssid.i_bssid, sizeof(nr->nr_macaddr));
+ if ((ioctl(sockfd, SIOCG80211NODE, nr)) < 0 && nr->nr_rssi) {
+ warn("ioctl 'SIOCG80211NODE':");
close(sockfd);
return 0;
}
- return close(sockfd), 1;
+ return close(sockfd), 1;
}
const char *
int q;
if (load_ieee80211_nodereq(iface, &nr)) {
- if (nr.nr_max_rssi)
+ if (nr.nr_max_rssi) {
q = IEEE80211_NODEREQ_RSSI(&nr);
- else
+ } else {
q = nr.nr_rssi >= -50 ? 100 : (nr.nr_rssi <= -100 ? 0 :
(2 * (nr.nr_rssi + 100)));
+ }
return bprintf("%d", q);
}
+
return NULL;
}
if (load_ieee80211_nodereq(iface, &nr)) {
return bprintf("%s", nr.nr_nwid);
}
+
return NULL;
}
-
#endif