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Diffstat (limited to '')
| -rw-r--r-- | aplst_scr.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/aplst_scr.c b/aplst_scr.c new file mode 100644 index 0000000..c0f868f --- /dev/null +++ b/aplst_scr.c @@ -0,0 +1,134 @@ +/* + * wavemon - a wireless network monitoring aplication + * + * Copyright (c) 2001-2002 Jan Morgenstern <jan@jm-music.de> + * + * wavemon is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2, or (at your option) any later + * version. + * + * wavemon is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along + * with wavemon; see the file COPYING. If not, write to the Free Software + * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include "iw_if.h" + +static void display_aplist(WINDOW *w_aplst) +{ + uint8_t buf[(sizeof(struct iw_quality) + + sizeof(struct sockaddr)) * IW_MAX_AP]; + char s[0x100]; + int i, j, line = 2; + struct iw_quality *qual, qual_pivot; + struct sockaddr *hwa, hwa_pivot; + struct iw_range range; + struct iw_levelstat dbm; + struct iwreq iwr; + int skfd = socket(AF_INET, SOCK_DGRAM, 0); + + if (skfd < 0) + err_sys("%s: can not open socket", __func__); + + iw_getinf_range(conf.ifname, &range); + for (i = 1; i <= MAXYLEN; i++) + mvwclrtoborder(w_aplst, i, 1); + + strncpy(iwr.ifr_name, conf.ifname, IFNAMSIZ); + iwr.u.data.pointer = (caddr_t) buf; + iwr.u.data.length = IW_MAX_AP; + iwr.u.data.flags = 0; + + if (ioctl(skfd, SIOCGIWAPLIST, &iwr) < 0) { + sprintf(s, "%s does not have a list of peers/access points", + conf.ifname); + waddstr_center(w_aplst, WAV_HEIGHT/2 - 1, s); + goto done; + } + + if (iwr.u.data.length == 0) { + sprintf(s, "%s: no peer/access point in range", conf.ifname); + waddstr_center(w_aplst, WAV_HEIGHT/2 - 1, s); + } else if (iwr.u.data.length == 1) { + mvwaddstr(w_aplst, line, 1, "Peer/access point:"); + } else { + sprintf(s, "%d peers/access points in range:", iwr.u.data.length); + mvwaddstr(w_aplst, line, 1, s); + } + + hwa = (struct sockaddr *) buf; + qual = (struct iw_quality *) (hwa + iwr.u.data.length); + + /* + * Show access points in descending order of signal quality by + * sorting both lists in parallel, using simple insertion sort. + */ + for (i = 0; i < iwr.u.data.length; i++) { + + qual_pivot = qual[i]; + hwa_pivot = hwa[i]; + + for (j = i; j > 0 && qual[j-1].qual < qual_pivot.qual; j--) { + qual[j] = qual[j-1]; + hwa[j] = hwa[j-1]; + } + + qual[j] = qual_pivot; + hwa[j] = hwa_pivot; + } + + line += 2; + + /* Truncate overly long access point lists to match screen height */ + for (i = 0; i < iwr.u.data.length && line < MAXYLEN; i++, line++) { + + mvwaddstr(w_aplst, line++, 1, " "); + waddstr_b(w_aplst, mac_addr(&hwa[i])); + + if (iwr.u.data.flags) { + iw_sanitize(&range, &qual[i], &dbm); + sprintf(s, "Quality%c %2d/%d, Signal%c %.0f dBm (%s), Noise%c %.0f dBm", + qual[i].updated & IW_QUAL_QUAL_UPDATED ? ':' : '=', + qual[i].qual, range.max_qual.qual, + qual[i].updated & IW_QUAL_LEVEL_UPDATED ? ':' : '=', + dbm.signal, dbm2units(dbm.signal), + qual[i].updated & IW_QUAL_NOISE_UPDATED ? ':' : '=', + dbm.noise); + mvwaddstr(w_aplst, line++, 5, s); + } + } +done: + close(skfd); + wrefresh(w_aplst); +} + +enum wavemon_screen scr_aplst(WINDOW *w_menu) +{ + WINDOW *w_aplst; + struct timer t1; + int key = 0; + + w_aplst = newwin_title(0, WAV_HEIGHT, "Access point list", false); + + while (key < KEY_F(1) || key > KEY_F(10)) { + display_aplist(w_aplst); + start_timer(&t1, 50000); + while (!end_timer(&t1) && (key = wgetch(w_menu)) <= 0) + usleep(5000); + + /* Keyboard shortcuts */ + if (key == 'q') + key = KEY_F(10); + else if (key == 'i') + key = KEY_F(1); + } + + delwin(w_aplst); + + return key - KEY_F(1); +} |