--- /dev/null
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+
+.TH wmiistatus 1 "FEBRUARY 2009" Linux "User Manuals"
+
+.SH NAME
+wmiistatus \- fill wmii's status bar
+.SH SYNOPSIS
+.B wmiistatus
+.RB [\|\-c
+.IR configfile \|]
+
+.SH DESCRIPTION
+
+.B wmiistatus
+is a small program (around 500 SLOC) for filling wmii's status bar via its 9P pseudo filesystem. It is designed to be very efficient by issuing a very small number of systemcalls (as the bar should be updated every second or at your specified interval).
+
+.SH CONFIGURATION
+.TP
+.B wlan
+Specifies the name of your WLAN interface (e.g. wlan0 or ath0 or eth1). Don't specify if you don't have a WLAN interface or if it should not be displayed.
+
+.TP
+.B eth
+Specifies the name of your ethernet interface (e.g. eth0). Don't specify if you don't have an ethernet interface or if it should not be displayed.
+
+.TP
+.B wmii_path
+Specifies the path to the rbar-folder of your mounted wmii pseudo file system (e.g. /mnt/wmii/rbar/). It has to be terminated by a slash.
+
+.TP
+.B time_format
+Format for the time/date to be displayed. See strftime(3) or date(1). Don't specify it if you don't want the time to be shown.
+
+.TP
+.B battery_path
+The path to your battery's uevent file in /sys, e.g. /sys/class/power_supply/BAT0/uevent. Only interesting for you if you have more than one battery. Don't specify if you don't have a battery.
+
+.TP
+.B run_watch
+You can specify this directive multiple times. Each line first has a name (one word, separated by space) followed by a path (can contain wildcards, given to glob(3)). The path is the path to a PID-file which contains just the process ID of a process. wmiistatus will then check if the process is still running and displays "yes" or "no" depending on the status. This is useful for displaying if your VPN is running, or dhclient for DHCP and so on...
+
+.TP
+.B order
+Followed by a comma separated list of the modules (run, wlan, eth, battery, load, time) this directive specifies the order of the information which should be displayed. An order is accomplished by prefixing the files in wmii's /rbar directory with a number, that is 0VPN, 1DHCP, 2time and so on..
+
+.TP
+.B color
+If specified, color mode is on. This affects WLAN which will be displayed red if WLAN is down and the run_watch system which will display the status in red/green.
+
+.TP
+.B get_ethspeed
+Get current speed of the ethernet interface using the same mechanism as ethtool. You need to start wmiistatus with root privileges to use this.
+
+.TP
+.B normcolors
+Specifies the colors for background/border in the same format (html colorcodes) as wmii's configuration (just the last two values), that is #222222 #333333 for example. Text color will be determined automatically (red/green/#888888), depending on context.
+
+.TP
+.B interval
+Specifies the interval in which the status bar will be updated. If you got a very slow system or feel you don't need so much information, you may want to increase it.
+
+.SH FILES
+.TP
+.B /etc/wmiistatus.conf
+System-wide configuration file.
+
+.SH EXAMPLE CONFIGURATION
+.PP
+.Vb 10
+\&wlan wlan0
+\ð eth0
+\&wmii_path /mnt/wmii/rbar/
+\&time_format %d.%m.%Y %H:%M:%S
+\&battery_path /sys/class/power_supply/BAT0/uevent
+\&run_watch DHCP /var/run/dhclient*.pid
+\&run_watch VPN /var/run/vpnc*.pid
+\&order run,wlan,eth,battery,load,time
+\&normcolors #000000 #333333
+\&color
+.Ve
+
+.SH MOUNTING WMII'S PSEUDO FILESYSTEM
+As of now (February 2009, Linux 2.6.28) you can mount wmii's 9P pseudo filesystem using:
+.PP
+.Vb 3
+mount -t 9p -o rw,trans=unix,uname=michael,dfltuid=1000,dfltgid=50,name=michael,noauto,noextend /tmp/ns.michael.:0/wmii /mnt/wmii
+# Perhaps you need to load module 9pnet_fd if that does not work
+modprobe 9pnet_fd
+.Ve
+
+.SH BUGS
+Sometimes, wmiistatus crashes when the wlan interface vanishes (killswitch). I haven't yet found the bug, as it is not reproducible. If you can reproduce this, please fix it and send me a patch.
+
+.SH SEE ALSO
+.BR strftime (3),
+.BR date (1),
+.BR glob (3)
+
+.SH AUTHOR
+Michael Stapelberg <michael+wmiistatus at stapelberg dot de>
+
+.SH WEBSITE
+See http://michael.stapelberg.de/wmiistatus for the newest release.
--- /dev/null
+/*
+ * Generates a status line for use with wmii or other minimal window managers
+ *
+ *
+ * Copyright (c) 2008-2009 Michael Stapelberg and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution.
+ *
+ * * Neither the name of Michael Stapelberg nor the names of contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdio.h>
+#include <time.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <ctype.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <glob.h>
+#include <dirent.h>
+#include <getopt.h>
+
+#include "queue.h"
+
+#ifdef LINUX
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#else
+/* TODO: correctly check for *BSD */
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/resource.h>
+#endif
+
+#include "wmiistatus.h"
+
+#define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)"
+
+struct battery {
+ const char *path;
+ SIMPLEQ_ENTRY(battery) batteries;
+};
+
+SIMPLEQ_HEAD(battery_head, battery) batteries;
+
+/* socket file descriptor for general purposes */
+static int general_socket;
+
+static const char *wlan_interface;
+static const char *eth_interface;
+static char *wmii_path;
+static const char *time_format;
+static const char *battery_path;
+static bool use_colors;
+static bool get_ethspeed;
+static const char *wmii_normcolors = "#222222 #333333";
+static char order[MAX_ORDER][2];
+static const char **run_watches;
+static unsigned int num_run_watches;
+static unsigned int interval = 1;
+
+/*
+ * This function just concats two strings in place, it should only be used
+ * for concatting order to the name of a file or concatting color codes.
+ * Otherwise, the buffer size would have to be increased.
+ *
+ */
+static char *concat(const char *str1, const char *str2) {
+ static char concatbuf[32];
+ (void)snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2);
+ return concatbuf;
+}
+
+/*
+ * Returns the correct color format for dzen (^fg(color)) or wmii (color <normcolors>)
+ *
+ */
+static char *color(const char *colorstr) {
+ static char colorbuf[32];
+#ifdef DZEN
+ (void)snprintf(colorbuf, sizeof(colorbuf), "^fg(%s)", colorstr);
+#else
+ (void)snprintf(colorbuf, sizeof(colorbuf), "%s %s ", colorstr, wmii_normcolors);
+#endif
+ return colorbuf;
+}
+
+/*
+ * Cleans wmii's /rbar directory by deleting all regular files
+ *
+ */
+static void cleanup_rbar_dir() {
+#ifdef DZEN
+ return;
+#endif
+ struct dirent *ent;
+ DIR *dir;
+ char pathbuf[strlen(wmii_path)+256+1];
+
+ if ((dir = opendir(wmii_path)) == NULL)
+ exit(EXIT_FAILURE);
+
+ while ((ent = readdir(dir)) != NULL) {
+ if (ent->d_type == DT_REG) {
+ (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, ent->d_name);
+ if (unlink(pathbuf) == -1)
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ (void)closedir(dir);
+}
+
+/*
+ * Creates the specified file in wmii's /rbar directory with
+ * correct modes and initializes colors if colormode is enabled
+ *
+ */
+static void create_file(const char *name) {
+#ifdef DZEN
+ return;
+#endif
+ char pathbuf[strlen(wmii_path)+256+1];
+ int fd;
+ int flags = O_CREAT | O_WRONLY;
+ struct stat statbuf;
+
+ (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
+
+ /* Overwrite file's contents if it exists */
+ if (stat(pathbuf, &statbuf) >= 0)
+ flags |= O_TRUNC;
+
+ if ((fd = open(pathbuf, flags, S_IRUSR | S_IWUSR)) < 0)
+ exit(EXIT_FAILURE);
+ if (use_colors) {
+ char *tmp = color("#888888");
+ if (write(fd, tmp, strlen(tmp)) != (ssize_t)strlen(tmp))
+ exit(EXIT_FAILURE);
+ }
+ (void)close(fd);
+}
+
+/*
+ * Waits until wmii_path/rbar exists (= the filesystem gets mounted),
+ * cleans up all files and creates the needed files
+ *
+ */
+static void setup(void) {
+ unsigned int i;
+ char pathbuf[512];
+
+#ifndef DZEN
+ struct stat statbuf;
+ /* Wait until wmii_path/rbar exists */
+ for (; stat(wmii_path, &statbuf) < 0; sleep(interval));
+#endif
+
+ cleanup_rbar_dir();
+ if (wlan_interface)
+ create_file(concat(order[ORDER_WLAN],"wlan"));
+ if (eth_interface)
+ create_file(concat(order[ORDER_ETH],"eth"));
+ if (battery_path)
+ create_file(concat(order[ORDER_BATTERY],"battery"));
+ create_file(concat(order[ORDER_LOAD],"load"));
+ if (time_format)
+ create_file(concat(order[ORDER_TIME],"time"));
+ for (i = 0; i < num_run_watches; i += 2) {
+ snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
+ create_file(pathbuf);
+ }
+}
+
+/*
+ * Writes the given message in the corresponding file in wmii's /rbar directory
+ *
+ */
+static void write_to_statusbar(const char *name, const char *message, bool final_entry) {
+#ifdef DZEN
+ if (final_entry) {
+ (void)printf("%s^p(6)\n", message);
+ fflush(stdout);
+ return;
+ }
+ (void)printf("%s" BAR, message);
+ return;
+#endif
+
+ char pathbuf[strlen(wmii_path)+256+1];
+ int fd;
+
+ (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
+ if ((fd = open(pathbuf, O_RDWR)) == -1) {
+ /* Try to re-setup stuff and just continue */
+ setup();
+ return;
+ }
+ if (write(fd, message, strlen(message)) != (ssize_t)strlen(message))
+ exit(EXIT_FAILURE);
+ (void)close(fd);
+}
+
+/*
+ * Writes an errormessage to statusbar
+ *
+ */
+static void write_error_to_statusbar(const char *message) {
+ cleanup_rbar_dir();
+ create_file("error");
+ write_to_statusbar("error", message, true);
+}
+
+/*
+ * Write errormessage to statusbar and exit
+ *
+ */
+void die(const char *fmt, ...) {
+ if (wmii_path != NULL) {
+ char buffer[512];
+ va_list ap;
+ va_start(ap, fmt);
+ (void)vsnprintf(buffer, sizeof(buffer), fmt, ap);
+ va_end(ap);
+
+ write_error_to_statusbar(buffer);
+ }
+ exit(EXIT_FAILURE);
+}
+
+/*
+ * Skip the given character for exactly 'amount' times, returns
+ * a pointer to the first non-'character' character in 'input'.
+ *
+ */
+static char *skip_character(char *input, char character, int amount) {
+ char *walk;
+ size_t len = strlen(input);
+ int blanks = 0;
+
+ for (walk = input; ((size_t)(walk - input) < len) && (blanks < amount); walk++)
+ if (*walk == character)
+ blanks++;
+
+ return (walk == input ? walk : walk-1);
+}
+
+/*
+ * Get battery information from /sys. Note that it uses the design capacity to
+ * calculate the percentage, not the last full capacity, so you can see how
+ * worn off your battery is.
+ *
+ */
+static char *get_battery_info(const char *path) {
+ char buf[1024];
+ static char part[512];
+ char *walk, *last;
+ int fd;
+ int full_design = -1,
+ remaining = -1,
+ present_rate = -1;
+ charging_status_t status = CS_DISCHARGING;
+
+ if ((fd = open(path, O_RDONLY)) == -1)
+ return "No battery found";
+
+ memset(part, 0, sizeof(part));
+ (void)read(fd, buf, sizeof(buf));
+ for (walk = buf, last = buf; (walk-buf) < 1024; walk++)
+ if (*walk == '=') {
+ if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN") ||
+ BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN"))
+ full_design = atoi(walk+1);
+ else if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") ||
+ BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW"))
+ remaining = atoi(walk+1);
+ else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
+ present_rate = atoi(walk+1);
+ else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
+ status = CS_CHARGING;
+ else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full"))
+ status = CS_FULL;
+ } else if (*walk == '\n')
+ last = walk+1;
+ (void)close(fd);
+
+ if ((full_design == 1) || (remaining == -1))
+ return part;
+
+ if (present_rate > 0) {
+ float remaining_time;
+ int seconds, hours, minutes;
+ if (status == CS_CHARGING)
+ remaining_time = ((float)full_design - (float)remaining) / (float)present_rate;
+ else if (status == CS_DISCHARGING)
+ remaining_time = ((float)remaining / (float)present_rate);
+ else remaining_time = 0;
+
+ seconds = (int)(remaining_time * 3600.0);
+ hours = seconds / 3600;
+ seconds -= (hours * 3600);
+ minutes = seconds / 60;
+ seconds -= (minutes * 60);
+
+ (void)snprintf(part, sizeof(part), "%s %.02f%% %02d:%02d:%02d",
+ (status == CS_CHARGING ? "CHR" :
+ (status == CS_DISCHARGING ? "BAT" : "FULL")),
+ (((float)remaining / (float)full_design) * 100),
+ hours, minutes, seconds);
+ } else {
+ (void)snprintf(part, sizeof(part), "%s %.02f%%",
+ (status == CS_CHARGING ? "CHR" :
+ (status == CS_DISCHARGING ? "BAT" : "FULL")),
+ (((float)remaining / (float)full_design) * 100));
+ }
+ return part;
+}
+
+/*
+ * Return the IP address for the given interface or "no IP" if the
+ * interface is up and running but hasn't got an IP address yet
+ *
+ */
+static const char *get_ip_address(const char *interface) {
+ static char part[512];
+ struct ifreq ifr;
+ struct sockaddr_in addr;
+ socklen_t len = sizeof(struct sockaddr_in);
+ memset(part, 0, sizeof(part));
+
+ (void)strcpy(ifr.ifr_name, interface);
+ ifr.ifr_addr.sa_family = AF_INET;
+ if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0)
+ return NULL;
+
+ memcpy(&addr, &ifr.ifr_addr, len);
+ (void)inet_ntop(AF_INET, &addr.sin_addr.s_addr, part, len);
+ if (strlen(part) == 0)
+ (void)snprintf(part, sizeof(part), "no IP");
+
+ return part;
+}
+
+/*
+ * Just parses /proc/net/wireless looking for lines beginning with
+ * wlan_interface, extracting the quality of the link and adding the
+ * current IP address of wlan_interface.
+ *
+ */
+static char *get_wireless_info() {
+ char buf[1024];
+ static char part[512];
+ char *interfaces;
+ int fd;
+ memset(buf, 0, sizeof(buf));
+ memset(part, 0, sizeof(part));
+
+ if ((fd = open("/proc/net/wireless", O_RDONLY)) == -1)
+ die("Could not open /proc/net/wireless\n");
+ (void)read(fd, buf, sizeof(buf));
+ (void)close(fd);
+
+ interfaces = skip_character(buf, '\n', 1) + 1;
+ while ((interfaces = skip_character(interfaces, '\n', 1)+1) < buf+strlen(buf)) {
+ while (isspace((int)*interfaces))
+ interfaces++;
+ if (!BEGINS_WITH(interfaces, wlan_interface))
+ continue;
+ int quality;
+ if (sscanf(interfaces, "%*[^:]: 0000 %d", &quality) != 1)
+ continue;
+ if ((quality == UCHAR_MAX) || (quality == 0)) {
+ if (use_colors)
+ (void)snprintf(part, sizeof(part), "%sW: down", color("#FF0000"));
+ else (void)snprintf(part, sizeof(part), "W: down");
+ } else (void)snprintf(part, sizeof(part), "%sW: (%03d%%) %s",
+ color("#00FF00"), quality, get_ip_address(wlan_interface));
+ return part;
+ }
+
+ return part;
+}
+
+/*
+ * Combines ethernet IP addresses and speed (if requested) for displaying
+ *
+ */
+static char *get_eth_info() {
+ static char part[512];
+ const char *ip_address = get_ip_address(eth_interface);
+ int ethspeed = 0;
+
+ if (get_ethspeed) {
+#ifdef LINUX
+ /* This code path requires root privileges */
+ struct ifreq ifr;
+ struct ethtool_cmd ecmd;
+
+ ecmd.cmd = ETHTOOL_GSET;
+ (void)memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_data = (caddr_t)&ecmd;
+ (void)strcpy(ifr.ifr_name, eth_interface);
+ if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0)
+ ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ecmd.speed);
+ else get_ethspeed = false;
+#endif
+ }
+
+ if (ip_address == NULL)
+ (void)snprintf(part, sizeof(part), "E: down");
+ else {
+ if (get_ethspeed)
+ (void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed);
+ else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
+ }
+
+ return part;
+}
+
+/*
+ * Checks if the PID in path is still valid by checking:
+ * (Linux) if /proc/<pid> exists
+ * (NetBSD) if sysctl returns process infos for this pid
+ *
+ */
+static bool process_runs(const char *path) {
+ char pidbuf[16];
+ static glob_t globbuf;
+ int fd;
+ memset(pidbuf, 0, sizeof(pidbuf));
+
+ if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
+ die("glob() failed\n");
+ fd = open((globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path), O_RDONLY);
+ globfree(&globbuf);
+ if (fd < 0)
+ return false;
+ (void)read(fd, pidbuf, sizeof(pidbuf));
+ (void)close(fd);
+
+#ifdef LINUX
+ struct stat statbuf;
+ char procbuf[512];
+ (void)snprintf(procbuf, sizeof(procbuf), "/proc/%ld", strtol(pidbuf, NULL, 10));
+ return (stat(procbuf, &statbuf) >= 0);
+#else
+ /* TODO: correctly check for NetBSD. Evaluate if this runs on OpenBSD/FreeBSD */
+ struct kinfo_proc info;
+ size_t length = sizeof(struct kinfo_proc);
+ int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, strtol(pidbuf, NULL, 10) };
+ if (sysctl(mib, 4, &info, &length, NULL, 0) < 0)
+ return false;
+ return (length != 0);
+#endif
+}
+
+/*
+ * Reads the configuration from the given file
+ *
+ */
+static int load_configuration(const char *configfile) {
+ #define OPT(x) else if (strcasecmp(dest_name, x) == 0)
+
+ /* check if the file exists */
+ struct stat buf;
+ if (stat(configfile, &buf) < 0)
+ return -1;
+
+ int result = 0;
+ FILE *handle = fopen(configfile, "r");
+ if (handle == NULL)
+ die("Could not open configfile\n");
+ char dest_name[512], dest_value[512], whole_buffer[1026];
+
+ while (!feof(handle)) {
+ char *ret;
+ if ((ret = fgets(whole_buffer, 1024, handle)) == whole_buffer) {
+ /* sscanf implicitly strips whitespace */
+ if (sscanf(whole_buffer, "%s %[^\n]", dest_name, dest_value) < 1)
+ continue;
+ } else if (ret != NULL)
+ die("Could not read line in configuration file\n");
+
+ /* skip comments and empty lines */
+ if (dest_name[0] == '#' || strlen(dest_name) < 3)
+ continue;
+
+ OPT("wlan")
+ wlan_interface = strdup(dest_value);
+ OPT("eth")
+ eth_interface = strdup(dest_value);
+ OPT("time_format")
+ time_format = strdup(dest_value);
+ OPT("battery_path") {
+ struct battery *new = calloc(1, sizeof(struct battery));
+ if (new == NULL)
+ die("Could not allocate memory\n");
+ new->path = strdup(dest_value);
+ SIMPLEQ_INSERT_TAIL(&batteries, new, batteries);
+ } OPT("color")
+ use_colors = true;
+ OPT("get_ethspeed")
+ get_ethspeed = true;
+ OPT("normcolors")
+ wmii_normcolors = strdup(dest_value);
+ OPT("interval")
+ interval = atoi(dest_value);
+ OPT("wmii_path")
+ {
+#ifndef DZEN
+ static glob_t globbuf;
+ struct stat stbuf;
+ if (glob(dest_value, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
+ die("glob() failed\n");
+ wmii_path = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : dest_value);
+ globfree(&globbuf);
+
+ if ((stat(wmii_path, &stbuf)) == -1) {
+ fprintf(stderr, "Warning: wmii_path contains an invalid path\n");
+ free(wmii_path);
+ wmii_path = strdup(dest_value);
+ }
+ if (wmii_path[strlen(wmii_path)-1] != '/')
+ die("wmii_path is not terminated by /\n");
+#endif
+ }
+ OPT("run_watch")
+ {
+ char *name = strdup(dest_value);
+ char *path = name;
+ while (*path != ' ')
+ path++;
+ *(path++) = '\0';
+ num_run_watches += 2;
+ run_watches = realloc(run_watches, sizeof(char*) * num_run_watches);
+ run_watches[num_run_watches-2] = name;
+ run_watches[num_run_watches-1] = path;
+ }
+ OPT("order")
+ {
+ #define SET_ORDER(opt, idx) { if (strcasecmp(token, opt) == 0) sprintf(order[idx], "%d", c++); }
+ char *walk, *token;
+ int c = 0;
+ walk = token = dest_value;
+ while (*walk != '\0') {
+ while ((*walk != ',') && (*walk != '\0'))
+ walk++;
+ *(walk++) = '\0';
+ SET_ORDER("run", ORDER_RUN);
+ SET_ORDER("wlan", ORDER_WLAN);
+ SET_ORDER("eth", ORDER_ETH);
+ SET_ORDER("battery", ORDER_BATTERY);
+ SET_ORDER("load", ORDER_LOAD);
+ SET_ORDER("time", ORDER_TIME);
+ token = walk;
+ while (isspace((int)(*token)))
+ token++;
+ }
+ }
+ else
+ {
+ result = -2;
+ die("Unknown configfile option: %s\n", dest_name);
+ }
+ }
+ fclose(handle);
+
+#ifndef DZEN
+ if (wmii_path == NULL)
+ exit(EXIT_FAILURE);
+#endif
+
+ return result;
+}
+
+int main(int argc, char *argv[]) {
+ char part[512],
+ pathbuf[512];
+ unsigned int i;
+
+ char *configfile = PREFIX "/etc/wmiistatus.conf";
+ int o, option_index = 0;
+ struct option long_options[] = {
+ {"config", required_argument, 0, 'c'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+
+ SIMPLEQ_INIT(&batteries);
+
+ while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
+ if ((char)o == 'c')
+ configfile = optarg;
+ else if ((char)o == 'h') {
+ printf("wmiistatus (c) 2008-2009 Michael Stapelberg\n"
+ "Syntax: %s [-c <configfile>]\n", argv[0]);
+ return 0;
+ }
+
+ if (load_configuration(configfile) < 0)
+ return EXIT_FAILURE;
+
+ setup();
+
+ if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
+ die("Could not create socket\n");
+
+ while (1) {
+ for (i = 0; i < num_run_watches; i += 2) {
+ bool running = process_runs(run_watches[i+1]);
+ if (use_colors)
+ snprintf(part, sizeof(part), "%s%s: %s",
+ (running ? color("#00FF00") : color("#FF0000")),
+ run_watches[i],
+ (running ? "yes" : "no"));
+ else snprintf(part, sizeof(part), "%s: %s", run_watches[i], (running ? "yes" : "no"));
+ snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
+ write_to_statusbar(pathbuf, part, false);
+ }
+
+ if (wlan_interface)
+ write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info(), false);
+ if (eth_interface)
+ write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info(), false);
+ struct battery *current_battery;
+ SIMPLEQ_FOREACH(current_battery, &batteries, batteries) {
+ write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info(current_battery->path), false);
+ }
+
+ /* Get load */
+#ifdef LINUX
+ int load_avg;
+ if ((load_avg = open("/proc/loadavg", O_RDONLY)) == -1)
+ die("Could not open /proc/loadavg\n");
+ (void)read(load_avg, part, sizeof(part));
+ (void)close(load_avg);
+ *skip_character(part, ' ', 3) = '\0';
+#else
+ /* TODO: correctly check for NetBSD, check if it works the same on *BSD */
+ struct loadavg load;
+ size_t length = sizeof(struct loadavg);
+ int mib[2] = { CTL_VM, VM_LOADAVG };
+ if (sysctl(mib, 2, &load, &length, NULL, 0) < 0)
+ die("Could not sysctl({ CTL_VM, VM_LOADAVG })\n");
+ double scale = load.fscale;
+ (void)snprintf(part, sizeof(part), "%.02f %.02f %.02f",
+ (double)load.ldavg[0] / scale,
+ (double)load.ldavg[1] / scale,
+ (double)load.ldavg[2] / scale);
+#endif
+ write_to_statusbar(concat(order[ORDER_LOAD], "load"), part, !time_format);
+
+ if (time_format) {
+ /* Get date & time */
+ time_t current_time = time(NULL);
+ struct tm *current_tm = localtime(¤t_time);
+ (void)strftime(part, sizeof(part), time_format, current_tm);
+ write_to_statusbar(concat(order[ORDER_TIME], "time"), part, true);
+ }
+
+ sleep(interval);
+ }
+}
--- /dev/null
+wlan wlan0
+eth eth0
+wmii_path /mnt/wmii/rbar/
+time_format %d.%m.%Y %H:%M:%S
+battery_path /sys/class/power_supply/BAT0/uevent
+run_watch DHCP /var/run/dhclient*.pid
+run_watch VPN /var/run/vpnc/pid
+order run,wlan,eth,battery,load,time
+normcolors #000000 #333333
+color
+get_ethspeed
--- /dev/null
+#define BEGINS_WITH(haystack, needle) (strncmp(haystack, needle, strlen(needle)) == 0)
+
+typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
+enum { ORDER_RUN, ORDER_WLAN, ORDER_ETH, ORDER_BATTERY, ORDER_LOAD, ORDER_TIME, MAX_ORDER };
--- /dev/null
+#!/bin/sh
+#
+### BEGIN INIT INFO
+# Provides: wmiistatus
+# Required-Start:
+# Required-Stop:
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: little application to fill up wmii's status bar
+# Description: little application to fill up wmii's status bar
+### END INIT INFO
+
+# For the pidfile, you must be root. wmiistatus itself runs as user just fine
+[ $(id -ru) -eq 0 ] || { echo "You need to be root"; exit 1; }
+
+. /lib/lsb/init-functions
+
+case "$1" in
+start) log_daemon_msg "Starting wmii status bar filler" "wmiistatus"
+ start-stop-daemon --start --background --quiet --make-pidfile --pidfile /var/run/wmiistatus.pid --name wmiistatus --startas /usr/bin/wmiistatus
+ log_end_msg $?
+ ;;
+stop) log_daemon_msg "Stopping wmii status bar filler" "wmiistatus"
+ start-stop-daemon --stop --quiet --pidfile /var/run/wmiistatus.pid --name wmiistatus
+ log_end_msg $?
+ ;;
+restart|reload|force-reload) log_daemon_msg "Restarting wmii status bar filler" "wmiistatus"
+ start-stop-daemon --stop --retry 5 --quiet --pidfile /var/run/wmiistatus.pid --name wmiistatus
+ start-stop-daemon --start --background --quiet --make-pidfile --pidfile /var/run/wmiistatus.pid --name wmiistatus --startas /usr/bin/wmiistatus
+ ;;
+*) log_action_msg "Usage: $0 {start|stop|restart|reload|force-reload}"
+ exit 2
+ ;;
+esac
+exit 0
+++ /dev/null
-.de Vb \" Begin verbatim text
-.ft CW
-.nf
-.ne \\$1
-..
-.de Ve \" End verbatim text
-.ft R
-.fi
-..
-
-.TH wmiistatus 1 "FEBRUARY 2009" Linux "User Manuals"
-
-.SH NAME
-wmiistatus \- fill wmii's status bar
-.SH SYNOPSIS
-.B wmiistatus
-.RB [\|\-c
-.IR configfile \|]
-
-.SH DESCRIPTION
-
-.B wmiistatus
-is a small program (around 500 SLOC) for filling wmii's status bar via its 9P pseudo filesystem. It is designed to be very efficient by issuing a very small number of systemcalls (as the bar should be updated every second or at your specified interval).
-
-.SH CONFIGURATION
-.TP
-.B wlan
-Specifies the name of your WLAN interface (e.g. wlan0 or ath0 or eth1). Don't specify if you don't have a WLAN interface or if it should not be displayed.
-
-.TP
-.B eth
-Specifies the name of your ethernet interface (e.g. eth0). Don't specify if you don't have an ethernet interface or if it should not be displayed.
-
-.TP
-.B wmii_path
-Specifies the path to the rbar-folder of your mounted wmii pseudo file system (e.g. /mnt/wmii/rbar/). It has to be terminated by a slash.
-
-.TP
-.B time_format
-Format for the time/date to be displayed. See strftime(3) or date(1). Don't specify it if you don't want the time to be shown.
-
-.TP
-.B battery_path
-The path to your battery's uevent file in /sys, e.g. /sys/class/power_supply/BAT0/uevent. Only interesting for you if you have more than one battery. Don't specify if you don't have a battery.
-
-.TP
-.B run_watch
-You can specify this directive multiple times. Each line first has a name (one word, separated by space) followed by a path (can contain wildcards, given to glob(3)). The path is the path to a PID-file which contains just the process ID of a process. wmiistatus will then check if the process is still running and displays "yes" or "no" depending on the status. This is useful for displaying if your VPN is running, or dhclient for DHCP and so on...
-
-.TP
-.B order
-Followed by a comma separated list of the modules (run, wlan, eth, battery, load, time) this directive specifies the order of the information which should be displayed. An order is accomplished by prefixing the files in wmii's /rbar directory with a number, that is 0VPN, 1DHCP, 2time and so on..
-
-.TP
-.B color
-If specified, color mode is on. This affects WLAN which will be displayed red if WLAN is down and the run_watch system which will display the status in red/green.
-
-.TP
-.B get_ethspeed
-Get current speed of the ethernet interface using the same mechanism as ethtool. You need to start wmiistatus with root privileges to use this.
-
-.TP
-.B normcolors
-Specifies the colors for background/border in the same format (html colorcodes) as wmii's configuration (just the last two values), that is #222222 #333333 for example. Text color will be determined automatically (red/green/#888888), depending on context.
-
-.TP
-.B interval
-Specifies the interval in which the status bar will be updated. If you got a very slow system or feel you don't need so much information, you may want to increase it.
-
-.SH FILES
-.TP
-.B /etc/wmiistatus.conf
-System-wide configuration file.
-
-.SH EXAMPLE CONFIGURATION
-.PP
-.Vb 10
-\&wlan wlan0
-\ð eth0
-\&wmii_path /mnt/wmii/rbar/
-\&time_format %d.%m.%Y %H:%M:%S
-\&battery_path /sys/class/power_supply/BAT0/uevent
-\&run_watch DHCP /var/run/dhclient*.pid
-\&run_watch VPN /var/run/vpnc*.pid
-\&order run,wlan,eth,battery,load,time
-\&normcolors #000000 #333333
-\&color
-.Ve
-
-.SH MOUNTING WMII'S PSEUDO FILESYSTEM
-As of now (February 2009, Linux 2.6.28) you can mount wmii's 9P pseudo filesystem using:
-.PP
-.Vb 3
-mount -t 9p -o rw,trans=unix,uname=michael,dfltuid=1000,dfltgid=50,name=michael,noauto,noextend /tmp/ns.michael.:0/wmii /mnt/wmii
-# Perhaps you need to load module 9pnet_fd if that does not work
-modprobe 9pnet_fd
-.Ve
-
-.SH BUGS
-Sometimes, wmiistatus crashes when the wlan interface vanishes (killswitch). I haven't yet found the bug, as it is not reproducible. If you can reproduce this, please fix it and send me a patch.
-
-.SH SEE ALSO
-.BR strftime (3),
-.BR date (1),
-.BR glob (3)
-
-.SH AUTHOR
-Michael Stapelberg <michael+wmiistatus at stapelberg dot de>
-
-.SH WEBSITE
-See http://michael.stapelberg.de/wmiistatus for the newest release.
+++ /dev/null
-/*
- * Generates a status line for use with wmii or other minimal window managers
- *
- *
- * Copyright (c) 2008-2009 Michael Stapelberg and contributors
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright notice, this
- * list of conditions and the following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * * Neither the name of Michael Stapelberg nor the names of contributors
- * may be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <stdio.h>
-#include <time.h>
-#include <stdbool.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <ctype.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <glob.h>
-#include <dirent.h>
-#include <getopt.h>
-
-#include "queue.h"
-
-#ifdef LINUX
-#include <linux/ethtool.h>
-#include <linux/sockios.h>
-#else
-/* TODO: correctly check for *BSD */
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <sys/resource.h>
-#endif
-
-#include "wmiistatus.h"
-
-#define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)"
-
-struct battery {
- const char *path;
- SIMPLEQ_ENTRY(battery) batteries;
-};
-
-SIMPLEQ_HEAD(battery_head, battery) batteries;
-
-/* socket file descriptor for general purposes */
-static int general_socket;
-
-static const char *wlan_interface;
-static const char *eth_interface;
-static char *wmii_path;
-static const char *time_format;
-static const char *battery_path;
-static bool use_colors;
-static bool get_ethspeed;
-static const char *wmii_normcolors = "#222222 #333333";
-static char order[MAX_ORDER][2];
-static const char **run_watches;
-static unsigned int num_run_watches;
-static unsigned int interval = 1;
-
-/*
- * This function just concats two strings in place, it should only be used
- * for concatting order to the name of a file or concatting color codes.
- * Otherwise, the buffer size would have to be increased.
- *
- */
-static char *concat(const char *str1, const char *str2) {
- static char concatbuf[32];
- (void)snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2);
- return concatbuf;
-}
-
-/*
- * Returns the correct color format for dzen (^fg(color)) or wmii (color <normcolors>)
- *
- */
-static char *color(const char *colorstr) {
- static char colorbuf[32];
-#ifdef DZEN
- (void)snprintf(colorbuf, sizeof(colorbuf), "^fg(%s)", colorstr);
-#else
- (void)snprintf(colorbuf, sizeof(colorbuf), "%s %s ", colorstr, wmii_normcolors);
-#endif
- return colorbuf;
-}
-
-/*
- * Cleans wmii's /rbar directory by deleting all regular files
- *
- */
-static void cleanup_rbar_dir() {
-#ifdef DZEN
- return;
-#endif
- struct dirent *ent;
- DIR *dir;
- char pathbuf[strlen(wmii_path)+256+1];
-
- if ((dir = opendir(wmii_path)) == NULL)
- exit(EXIT_FAILURE);
-
- while ((ent = readdir(dir)) != NULL) {
- if (ent->d_type == DT_REG) {
- (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, ent->d_name);
- if (unlink(pathbuf) == -1)
- exit(EXIT_FAILURE);
- }
- }
-
- (void)closedir(dir);
-}
-
-/*
- * Creates the specified file in wmii's /rbar directory with
- * correct modes and initializes colors if colormode is enabled
- *
- */
-static void create_file(const char *name) {
-#ifdef DZEN
- return;
-#endif
- char pathbuf[strlen(wmii_path)+256+1];
- int fd;
- int flags = O_CREAT | O_WRONLY;
- struct stat statbuf;
-
- (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
-
- /* Overwrite file's contents if it exists */
- if (stat(pathbuf, &statbuf) >= 0)
- flags |= O_TRUNC;
-
- if ((fd = open(pathbuf, flags, S_IRUSR | S_IWUSR)) < 0)
- exit(EXIT_FAILURE);
- if (use_colors) {
- char *tmp = color("#888888");
- if (write(fd, tmp, strlen(tmp)) != (ssize_t)strlen(tmp))
- exit(EXIT_FAILURE);
- }
- (void)close(fd);
-}
-
-/*
- * Waits until wmii_path/rbar exists (= the filesystem gets mounted),
- * cleans up all files and creates the needed files
- *
- */
-static void setup(void) {
- unsigned int i;
- char pathbuf[512];
-
-#ifndef DZEN
- struct stat statbuf;
- /* Wait until wmii_path/rbar exists */
- for (; stat(wmii_path, &statbuf) < 0; sleep(interval));
-#endif
-
- cleanup_rbar_dir();
- if (wlan_interface)
- create_file(concat(order[ORDER_WLAN],"wlan"));
- if (eth_interface)
- create_file(concat(order[ORDER_ETH],"eth"));
- if (battery_path)
- create_file(concat(order[ORDER_BATTERY],"battery"));
- create_file(concat(order[ORDER_LOAD],"load"));
- if (time_format)
- create_file(concat(order[ORDER_TIME],"time"));
- for (i = 0; i < num_run_watches; i += 2) {
- snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
- create_file(pathbuf);
- }
-}
-
-/*
- * Writes the given message in the corresponding file in wmii's /rbar directory
- *
- */
-static void write_to_statusbar(const char *name, const char *message, bool final_entry) {
-#ifdef DZEN
- if (final_entry) {
- (void)printf("%s^p(6)\n", message);
- fflush(stdout);
- return;
- }
- (void)printf("%s" BAR, message);
- return;
-#endif
-
- char pathbuf[strlen(wmii_path)+256+1];
- int fd;
-
- (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
- if ((fd = open(pathbuf, O_RDWR)) == -1) {
- /* Try to re-setup stuff and just continue */
- setup();
- return;
- }
- if (write(fd, message, strlen(message)) != (ssize_t)strlen(message))
- exit(EXIT_FAILURE);
- (void)close(fd);
-}
-
-/*
- * Writes an errormessage to statusbar
- *
- */
-static void write_error_to_statusbar(const char *message) {
- cleanup_rbar_dir();
- create_file("error");
- write_to_statusbar("error", message, true);
-}
-
-/*
- * Write errormessage to statusbar and exit
- *
- */
-void die(const char *fmt, ...) {
- if (wmii_path != NULL) {
- char buffer[512];
- va_list ap;
- va_start(ap, fmt);
- (void)vsnprintf(buffer, sizeof(buffer), fmt, ap);
- va_end(ap);
-
- write_error_to_statusbar(buffer);
- }
- exit(EXIT_FAILURE);
-}
-
-/*
- * Skip the given character for exactly 'amount' times, returns
- * a pointer to the first non-'character' character in 'input'.
- *
- */
-static char *skip_character(char *input, char character, int amount) {
- char *walk;
- size_t len = strlen(input);
- int blanks = 0;
-
- for (walk = input; ((size_t)(walk - input) < len) && (blanks < amount); walk++)
- if (*walk == character)
- blanks++;
-
- return (walk == input ? walk : walk-1);
-}
-
-/*
- * Get battery information from /sys. Note that it uses the design capacity to
- * calculate the percentage, not the last full capacity, so you can see how
- * worn off your battery is.
- *
- */
-static char *get_battery_info(const char *path) {
- char buf[1024];
- static char part[512];
- char *walk, *last;
- int fd;
- int full_design = -1,
- remaining = -1,
- present_rate = -1;
- charging_status_t status = CS_DISCHARGING;
-
- if ((fd = open(path, O_RDONLY)) == -1)
- return "No battery found";
-
- memset(part, 0, sizeof(part));
- (void)read(fd, buf, sizeof(buf));
- for (walk = buf, last = buf; (walk-buf) < 1024; walk++)
- if (*walk == '=') {
- if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN") ||
- BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN"))
- full_design = atoi(walk+1);
- else if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") ||
- BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW"))
- remaining = atoi(walk+1);
- else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
- present_rate = atoi(walk+1);
- else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
- status = CS_CHARGING;
- else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full"))
- status = CS_FULL;
- } else if (*walk == '\n')
- last = walk+1;
- (void)close(fd);
-
- if ((full_design == 1) || (remaining == -1))
- return part;
-
- if (present_rate > 0) {
- float remaining_time;
- int seconds, hours, minutes;
- if (status == CS_CHARGING)
- remaining_time = ((float)full_design - (float)remaining) / (float)present_rate;
- else if (status == CS_DISCHARGING)
- remaining_time = ((float)remaining / (float)present_rate);
- else remaining_time = 0;
-
- seconds = (int)(remaining_time * 3600.0);
- hours = seconds / 3600;
- seconds -= (hours * 3600);
- minutes = seconds / 60;
- seconds -= (minutes * 60);
-
- (void)snprintf(part, sizeof(part), "%s %.02f%% %02d:%02d:%02d",
- (status == CS_CHARGING ? "CHR" :
- (status == CS_DISCHARGING ? "BAT" : "FULL")),
- (((float)remaining / (float)full_design) * 100),
- hours, minutes, seconds);
- } else {
- (void)snprintf(part, sizeof(part), "%s %.02f%%",
- (status == CS_CHARGING ? "CHR" :
- (status == CS_DISCHARGING ? "BAT" : "FULL")),
- (((float)remaining / (float)full_design) * 100));
- }
- return part;
-}
-
-/*
- * Return the IP address for the given interface or "no IP" if the
- * interface is up and running but hasn't got an IP address yet
- *
- */
-static const char *get_ip_address(const char *interface) {
- static char part[512];
- struct ifreq ifr;
- struct sockaddr_in addr;
- socklen_t len = sizeof(struct sockaddr_in);
- memset(part, 0, sizeof(part));
-
- (void)strcpy(ifr.ifr_name, interface);
- ifr.ifr_addr.sa_family = AF_INET;
- if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0)
- return NULL;
-
- memcpy(&addr, &ifr.ifr_addr, len);
- (void)inet_ntop(AF_INET, &addr.sin_addr.s_addr, part, len);
- if (strlen(part) == 0)
- (void)snprintf(part, sizeof(part), "no IP");
-
- return part;
-}
-
-/*
- * Just parses /proc/net/wireless looking for lines beginning with
- * wlan_interface, extracting the quality of the link and adding the
- * current IP address of wlan_interface.
- *
- */
-static char *get_wireless_info() {
- char buf[1024];
- static char part[512];
- char *interfaces;
- int fd;
- memset(buf, 0, sizeof(buf));
- memset(part, 0, sizeof(part));
-
- if ((fd = open("/proc/net/wireless", O_RDONLY)) == -1)
- die("Could not open /proc/net/wireless\n");
- (void)read(fd, buf, sizeof(buf));
- (void)close(fd);
-
- interfaces = skip_character(buf, '\n', 1) + 1;
- while ((interfaces = skip_character(interfaces, '\n', 1)+1) < buf+strlen(buf)) {
- while (isspace((int)*interfaces))
- interfaces++;
- if (!BEGINS_WITH(interfaces, wlan_interface))
- continue;
- int quality;
- if (sscanf(interfaces, "%*[^:]: 0000 %d", &quality) != 1)
- continue;
- if ((quality == UCHAR_MAX) || (quality == 0)) {
- if (use_colors)
- (void)snprintf(part, sizeof(part), "%sW: down", color("#FF0000"));
- else (void)snprintf(part, sizeof(part), "W: down");
- } else (void)snprintf(part, sizeof(part), "%sW: (%03d%%) %s",
- color("#00FF00"), quality, get_ip_address(wlan_interface));
- return part;
- }
-
- return part;
-}
-
-/*
- * Combines ethernet IP addresses and speed (if requested) for displaying
- *
- */
-static char *get_eth_info() {
- static char part[512];
- const char *ip_address = get_ip_address(eth_interface);
- int ethspeed = 0;
-
- if (get_ethspeed) {
-#ifdef LINUX
- /* This code path requires root privileges */
- struct ifreq ifr;
- struct ethtool_cmd ecmd;
-
- ecmd.cmd = ETHTOOL_GSET;
- (void)memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_data = (caddr_t)&ecmd;
- (void)strcpy(ifr.ifr_name, eth_interface);
- if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0)
- ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ecmd.speed);
- else get_ethspeed = false;
-#endif
- }
-
- if (ip_address == NULL)
- (void)snprintf(part, sizeof(part), "E: down");
- else {
- if (get_ethspeed)
- (void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed);
- else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
- }
-
- return part;
-}
-
-/*
- * Checks if the PID in path is still valid by checking:
- * (Linux) if /proc/<pid> exists
- * (NetBSD) if sysctl returns process infos for this pid
- *
- */
-static bool process_runs(const char *path) {
- char pidbuf[16];
- static glob_t globbuf;
- int fd;
- memset(pidbuf, 0, sizeof(pidbuf));
-
- if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
- die("glob() failed\n");
- fd = open((globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path), O_RDONLY);
- globfree(&globbuf);
- if (fd < 0)
- return false;
- (void)read(fd, pidbuf, sizeof(pidbuf));
- (void)close(fd);
-
-#ifdef LINUX
- struct stat statbuf;
- char procbuf[512];
- (void)snprintf(procbuf, sizeof(procbuf), "/proc/%ld", strtol(pidbuf, NULL, 10));
- return (stat(procbuf, &statbuf) >= 0);
-#else
- /* TODO: correctly check for NetBSD. Evaluate if this runs on OpenBSD/FreeBSD */
- struct kinfo_proc info;
- size_t length = sizeof(struct kinfo_proc);
- int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, strtol(pidbuf, NULL, 10) };
- if (sysctl(mib, 4, &info, &length, NULL, 0) < 0)
- return false;
- return (length != 0);
-#endif
-}
-
-/*
- * Reads the configuration from the given file
- *
- */
-static int load_configuration(const char *configfile) {
- #define OPT(x) else if (strcasecmp(dest_name, x) == 0)
-
- /* check if the file exists */
- struct stat buf;
- if (stat(configfile, &buf) < 0)
- return -1;
-
- int result = 0;
- FILE *handle = fopen(configfile, "r");
- if (handle == NULL)
- die("Could not open configfile\n");
- char dest_name[512], dest_value[512], whole_buffer[1026];
-
- while (!feof(handle)) {
- char *ret;
- if ((ret = fgets(whole_buffer, 1024, handle)) == whole_buffer) {
- /* sscanf implicitly strips whitespace */
- if (sscanf(whole_buffer, "%s %[^\n]", dest_name, dest_value) < 1)
- continue;
- } else if (ret != NULL)
- die("Could not read line in configuration file\n");
-
- /* skip comments and empty lines */
- if (dest_name[0] == '#' || strlen(dest_name) < 3)
- continue;
-
- OPT("wlan")
- wlan_interface = strdup(dest_value);
- OPT("eth")
- eth_interface = strdup(dest_value);
- OPT("time_format")
- time_format = strdup(dest_value);
- OPT("battery_path") {
- struct battery *new = calloc(1, sizeof(struct battery));
- if (new == NULL)
- die("Could not allocate memory\n");
- new->path = strdup(dest_value);
- SIMPLEQ_INSERT_TAIL(&batteries, new, batteries);
- } OPT("color")
- use_colors = true;
- OPT("get_ethspeed")
- get_ethspeed = true;
- OPT("normcolors")
- wmii_normcolors = strdup(dest_value);
- OPT("interval")
- interval = atoi(dest_value);
- OPT("wmii_path")
- {
-#ifndef DZEN
- static glob_t globbuf;
- struct stat stbuf;
- if (glob(dest_value, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
- die("glob() failed\n");
- wmii_path = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : dest_value);
- globfree(&globbuf);
-
- if ((stat(wmii_path, &stbuf)) == -1) {
- fprintf(stderr, "Warning: wmii_path contains an invalid path\n");
- free(wmii_path);
- wmii_path = strdup(dest_value);
- }
- if (wmii_path[strlen(wmii_path)-1] != '/')
- die("wmii_path is not terminated by /\n");
-#endif
- }
- OPT("run_watch")
- {
- char *name = strdup(dest_value);
- char *path = name;
- while (*path != ' ')
- path++;
- *(path++) = '\0';
- num_run_watches += 2;
- run_watches = realloc(run_watches, sizeof(char*) * num_run_watches);
- run_watches[num_run_watches-2] = name;
- run_watches[num_run_watches-1] = path;
- }
- OPT("order")
- {
- #define SET_ORDER(opt, idx) { if (strcasecmp(token, opt) == 0) sprintf(order[idx], "%d", c++); }
- char *walk, *token;
- int c = 0;
- walk = token = dest_value;
- while (*walk != '\0') {
- while ((*walk != ',') && (*walk != '\0'))
- walk++;
- *(walk++) = '\0';
- SET_ORDER("run", ORDER_RUN);
- SET_ORDER("wlan", ORDER_WLAN);
- SET_ORDER("eth", ORDER_ETH);
- SET_ORDER("battery", ORDER_BATTERY);
- SET_ORDER("load", ORDER_LOAD);
- SET_ORDER("time", ORDER_TIME);
- token = walk;
- while (isspace((int)(*token)))
- token++;
- }
- }
- else
- {
- result = -2;
- die("Unknown configfile option: %s\n", dest_name);
- }
- }
- fclose(handle);
-
-#ifndef DZEN
- if (wmii_path == NULL)
- exit(EXIT_FAILURE);
-#endif
-
- return result;
-}
-
-int main(int argc, char *argv[]) {
- char part[512],
- pathbuf[512];
- unsigned int i;
-
- char *configfile = PREFIX "/etc/wmiistatus.conf";
- int o, option_index = 0;
- struct option long_options[] = {
- {"config", required_argument, 0, 'c'},
- {"help", no_argument, 0, 'h'},
- {0, 0, 0, 0}
- };
-
- SIMPLEQ_INIT(&batteries);
-
- while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
- if ((char)o == 'c')
- configfile = optarg;
- else if ((char)o == 'h') {
- printf("wmiistatus (c) 2008-2009 Michael Stapelberg\n"
- "Syntax: %s [-c <configfile>]\n", argv[0]);
- return 0;
- }
-
- if (load_configuration(configfile) < 0)
- return EXIT_FAILURE;
-
- setup();
-
- if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
- die("Could not create socket\n");
-
- while (1) {
- for (i = 0; i < num_run_watches; i += 2) {
- bool running = process_runs(run_watches[i+1]);
- if (use_colors)
- snprintf(part, sizeof(part), "%s%s: %s",
- (running ? color("#00FF00") : color("#FF0000")),
- run_watches[i],
- (running ? "yes" : "no"));
- else snprintf(part, sizeof(part), "%s: %s", run_watches[i], (running ? "yes" : "no"));
- snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
- write_to_statusbar(pathbuf, part, false);
- }
-
- if (wlan_interface)
- write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info(), false);
- if (eth_interface)
- write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info(), false);
- struct battery *current_battery;
- SIMPLEQ_FOREACH(current_battery, &batteries, batteries) {
- write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info(current_battery->path), false);
- }
-
- /* Get load */
-#ifdef LINUX
- int load_avg;
- if ((load_avg = open("/proc/loadavg", O_RDONLY)) == -1)
- die("Could not open /proc/loadavg\n");
- (void)read(load_avg, part, sizeof(part));
- (void)close(load_avg);
- *skip_character(part, ' ', 3) = '\0';
-#else
- /* TODO: correctly check for NetBSD, check if it works the same on *BSD */
- struct loadavg load;
- size_t length = sizeof(struct loadavg);
- int mib[2] = { CTL_VM, VM_LOADAVG };
- if (sysctl(mib, 2, &load, &length, NULL, 0) < 0)
- die("Could not sysctl({ CTL_VM, VM_LOADAVG })\n");
- double scale = load.fscale;
- (void)snprintf(part, sizeof(part), "%.02f %.02f %.02f",
- (double)load.ldavg[0] / scale,
- (double)load.ldavg[1] / scale,
- (double)load.ldavg[2] / scale);
-#endif
- write_to_statusbar(concat(order[ORDER_LOAD], "load"), part, !time_format);
-
- if (time_format) {
- /* Get date & time */
- time_t current_time = time(NULL);
- struct tm *current_tm = localtime(¤t_time);
- (void)strftime(part, sizeof(part), time_format, current_tm);
- write_to_statusbar(concat(order[ORDER_TIME], "time"), part, true);
- }
-
- sleep(interval);
- }
-}
+++ /dev/null
-wlan wlan0
-eth eth0
-wmii_path /mnt/wmii/rbar/
-time_format %d.%m.%Y %H:%M:%S
-battery_path /sys/class/power_supply/BAT0/uevent
-run_watch DHCP /var/run/dhclient*.pid
-run_watch VPN /var/run/vpnc/pid
-order run,wlan,eth,battery,load,time
-normcolors #000000 #333333
-color
-get_ethspeed
+++ /dev/null
-#define BEGINS_WITH(haystack, needle) (strncmp(haystack, needle, strlen(needle)) == 0)
-
-typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
-enum { ORDER_RUN, ORDER_WLAN, ORDER_ETH, ORDER_BATTERY, ORDER_LOAD, ORDER_TIME, MAX_ORDER };
+++ /dev/null
-#!/bin/sh
-#
-### BEGIN INIT INFO
-# Provides: wmiistatus
-# Required-Start:
-# Required-Stop:
-# Default-Start: 2 3 4 5
-# Default-Stop: 0 1 6
-# Short-Description: little application to fill up wmii's status bar
-# Description: little application to fill up wmii's status bar
-### END INIT INFO
-
-# For the pidfile, you must be root. wmiistatus itself runs as user just fine
-[ $(id -ru) -eq 0 ] || { echo "You need to be root"; exit 1; }
-
-. /lib/lsb/init-functions
-
-case "$1" in
-start) log_daemon_msg "Starting wmii status bar filler" "wmiistatus"
- start-stop-daemon --start --background --quiet --make-pidfile --pidfile /var/run/wmiistatus.pid --name wmiistatus --startas /usr/bin/wmiistatus
- log_end_msg $?
- ;;
-stop) log_daemon_msg "Stopping wmii status bar filler" "wmiistatus"
- start-stop-daemon --stop --quiet --pidfile /var/run/wmiistatus.pid --name wmiistatus
- log_end_msg $?
- ;;
-restart|reload|force-reload) log_daemon_msg "Restarting wmii status bar filler" "wmiistatus"
- start-stop-daemon --stop --retry 5 --quiet --pidfile /var/run/wmiistatus.pid --name wmiistatus
- start-stop-daemon --start --background --quiet --make-pidfile --pidfile /var/run/wmiistatus.pid --name wmiistatus --startas /usr/bin/wmiistatus
- ;;
-*) log_action_msg "Usage: $0 {start|stop|restart|reload|force-reload}"
- exit 2
- ;;
-esac
-exit 0
projects / i3 / i3status / commitdiff