CFLAGS+=-std=gnu99
CFLAGS+=-pedantic
CFLAGS+=-DPREFIX=\"\"
+CFLAGS+=-I.
VERSION=$(shell git describe --tags --abbrev=0)
endif
# Define this if you want i3status to spit out dzen2-compatible output on stdout
-#CFLAGS+=-DDZEN
+CFLAGS+=-DDZEN
CFLAGS+=$(EXTRA_CFLAGS)
+src/%.o: src/%.c src/%.h
+ $(CC) $(CFLAGS) -c -o $@ $<
+
%.o: %.c %.h
$(CC) $(CFLAGS) -c -o $@ $<
-i3status: i3status.o
+i3status: src/general.o src/config.o src/get_load.o src/output.o src/get_cpu_temperature.o src/process_runs.o src/get_eth_info.o src/get_ip_addr.o src/get_wireless_info.o src/get_battery_info.o src/get_ipv6_addr.o i3status.o
clean:
- rm -f *.o
+ rm -f *.o src/*.o
distclean: clean
rm -f i3status
#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 <signal.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 "i3status.h"
-#define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)"
-
-struct battery {
- char *path;
- /* Use last full capacity instead of design capacity */
- bool use_last_full;
- SIMPLEQ_ENTRY(battery) batteries;
-};
-
-SIMPLEQ_HEAD(battery_head, battery) batteries;
+struct battery_head 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 bool use_colors;
-static bool get_ethspeed;
-static bool get_cpu_temperature;
-static char *thermal_zone;
-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;
-
-static int max(int a, int b) {
- return (a > b ? a : b);
-}
-
-/*
- * 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 (get_cpu_temperature)
- create_file(concat(order[ORDER_CPU_TEMPERATURE], "cpu_temperature"));
- 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) {
- if (printf("%s^p(6)\n", message) < 0) {
- perror("printf");
- exit(1);
- }
-
- fflush(stdout);
- return;
- }
- if (printf("%s" BAR, message) < 0) {
- perror("printf");
- exit(1);
- }
- 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, ...) {
- char buffer[512];
- va_list ap;
- va_start(ap, fmt);
- (void)vsnprintf(buffer, sizeof(buffer), fmt, ap);
- va_end(ap);
-
- if (wmii_path != NULL)
- write_error_to_statusbar(buffer);
- else
- fprintf(stderr, "%s", 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(struct battery *bat) {
- 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(bat->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 == '\n') {
- last = walk+1;
- continue;
- }
-
- if (*walk != '=')
- continue;
-
- 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 {
- /* The only thing left is the full capacity */
- if (bat->use_last_full) {
- if (!BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL") &&
- !BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL"))
- continue;
- } else {
- if (!BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN") &&
- !BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN"))
- continue;
- }
-
- full_design = atoi(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),
- max(hours, 0), max(minutes, 0), max(seconds, 0));
- } 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));
-
- /* First check if the interface is running */
- (void)strcpy(ifr.ifr_name, interface);
- if (ioctl(general_socket, SIOCGIFFLAGS, &ifr) < 0 ||
- !(ifr.ifr_flags & IFF_RUNNING))
- return NULL;
-
- /* Interface is up, get the IP address */
- (void)strcpy(ifr.ifr_name, interface);
- ifr.ifr_addr.sa_family = AF_INET;
- if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0)
- return "no IP";
-
- 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;
-}
-
-/*
- * Reads the CPU temperature from /sys/class/thermal/thermal_zone0/temp and
- * returns the temperature in degree celcius.
- *
- */
-static char *get_cpu_temperature_info() {
- static char part[16];
- char buf[16];
- int temp;
- int fd;
-
- memset(buf, 0, sizeof(buf));
- memset(part, 0, sizeof(part));
-
- if ((fd = open(thermal_zone, O_RDONLY)) == -1)
- die("Could not open %s\n", thermal_zone);
- (void)read(fd, buf, sizeof(buf));
- (void)close(fd);
-
- if (sscanf(buf, "%d", &temp) != 1)
- (void)snprintf(part, sizeof(part), "T: ? C");
- else
- (void)snprintf(part, sizeof(part), "T: %d C", (temp/1000));
-
- 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") {
- struct battery *new = calloc(1, sizeof(struct battery));
- if (new == NULL)
- die("Could not allocate memory\n");
- if (asprintf(&(new->path), "/sys/class/power_supply/BAT%d/uevent", atoi(dest_value)) == -1)
- die("Could not build battery path\n");
-
- /* check if flags were specified for this battery */
- if (strstr(dest_value, ",") != NULL) {
- char *flags = strstr(dest_value, ",");
- flags++;
- if (*flags == 'f')
- new->use_last_full = true;
- }
- SIMPLEQ_INSERT_TAIL(&batteries, new, batteries);
- } OPT("color")
- use_colors = true;
- OPT("get_ethspeed")
- get_ethspeed = true;
- OPT("get_cpu_temperature") {
- get_cpu_temperature = true;
- if (strlen(dest_value) > 0) {
- if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone%d/temp", atoi(dest_value)) == -1)
- die("Could not build thermal_zone path\n");
- } else {
- if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone0/temp") == -1)
- die("Could not build thermal_zone path\n");
- }
- } 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("cpu_temperature", ORDER_CPU_TEMPERATURE);
- 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 general_socket;
+
+const char *wlan_interface;
+const char *eth_interface;
+const char *wmii_path;
+const char *time_format;
+bool use_colors;
+bool get_ethspeed;
+bool get_cpu_temperature;
+char *thermal_zone;
+const char *wmii_normcolors = "#222222 #333333";
+char order[MAX_ORDER][2];
+const char **run_watches;
+unsigned int num_run_watches;
+unsigned int interval = 1;
/*
* Exit upon SIGPIPE because when we have nowhere to write to, gathering
if (get_cpu_temperature)
write_to_statusbar(concat(order[ORDER_CPU_TEMPERATURE], "cpu_temperature"), get_cpu_temperature_info(), 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);
+ write_to_statusbar(concat(order[ORDER_LOAD], "load"), get_load(), !time_format);
if (time_format) {
/* Get date & time */
+#ifndef _I3STATUS_H
+#define _I3STATUS_H
+
+#include <stdbool.h>
+
+#include "queue.h"
+
+#define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)"
#define BEGINS_WITH(haystack, needle) (strncmp(haystack, needle, strlen(needle)) == 0)
+#define max(a, b) (a > b ? a : b)
typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
enum { ORDER_RUN, ORDER_WLAN, ORDER_ETH, ORDER_BATTERY, ORDER_CPU_TEMPERATURE, ORDER_LOAD, ORDER_TIME, MAX_ORDER };
+
+struct battery {
+ char *path;
+ /* Use last full capacity instead of design capacity */
+ bool use_last_full;
+ SIMPLEQ_ENTRY(battery) batteries;
+};
+
+/* src/general.c */
+char *skip_character(char *input, char character, int amount);
+void die(const char *fmt, ...);
+char *concat(const char *str1, const char *str2);
+void create_file(const char *name);
+void setup(void);
+void write_to_statusbar(const char *name, const char *message, bool final_entry);
+void slurp(char *filename, char *destination, int size);
+
+/* src/output.c */
+void write_error_to_statusbar(const char *message);
+char *color(const char *colorstr);
+void cleanup_rbar_dir();
+
+/* src/config.c */
+int load_configuration(const char *configfile);
+
+const char *get_ipv6_addr();
+const char *get_battery_info(struct battery *bat);
+const char *get_ip_addr();
+const char *get_wireless_info();
+const char *get_cpu_temperature_info();
+const char *get_eth_info();
+const char *get_load();
+bool process_runs(const char *path);
+
+SIMPLEQ_HEAD(battery_head, battery);
+extern struct battery_head batteries;
+
+/* socket file descriptor for general purposes */
+extern int general_socket;
+
+extern const char *wlan_interface;
+extern const char *eth_interface;
+extern const char *wmii_path;
+extern const char *time_format;
+extern bool use_colors;
+extern bool get_ethspeed;
+extern bool get_cpu_temperature;
+extern char *thermal_zone;
+extern const char *wmii_normcolors;
+extern char order[MAX_ORDER][2];
+extern const char **run_watches;
+extern unsigned int num_run_watches;
+extern unsigned int interval;
+
+#endif
--- /dev/null
+#include <sys/stat.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "i3status.h"
+
+/*
+ * Reads the configuration from the given file
+ *
+ */
+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") {
+ struct battery *new = calloc(1, sizeof(struct battery));
+ if (new == NULL)
+ die("Could not allocate memory\n");
+ if (asprintf(&(new->path), "/sys/class/power_supply/BAT%d/uevent", atoi(dest_value)) == -1)
+ die("Could not build battery path\n");
+
+ /* check if flags were specified for this battery */
+ if (strstr(dest_value, ",") != NULL) {
+ char *flags = strstr(dest_value, ",");
+ flags++;
+ if (*flags == 'f')
+ new->use_last_full = true;
+ }
+ SIMPLEQ_INSERT_TAIL(&batteries, new, batteries);
+ } OPT("color")
+ use_colors = true;
+ OPT("get_ethspeed")
+ get_ethspeed = true;
+ OPT("get_cpu_temperature") {
+ get_cpu_temperature = true;
+ if (strlen(dest_value) > 0) {
+ if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone%d/temp", atoi(dest_value)) == -1)
+ die("Could not build thermal_zone path\n");
+ } else {
+ if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone0/temp") == -1)
+ die("Could not build thermal_zone path\n");
+ }
+ } 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("cpu_temperature", ORDER_CPU_TEMPERATURE);
+ 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;
+}
--- /dev/null
+#include <sys/types.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/fcntl.h>
+
+#include "i3status.h"
+
+/*
+ * Reads size bytes into the destination buffer from filename.
+ *
+ */
+void slurp(char *filename, char *destination, int size) {
+ int fd;
+
+ if ((fd = open(filename, O_RDONLY)) == -1)
+ die("Could not open \"%s\"\n", filename);
+
+ (void)read(fd, destination, size);
+ (void)close(fd);
+}
+
+/*
+ * Skip the given character for exactly 'amount' times, returns
+ * a pointer to the first non-'character' character in 'input'.
+ *
+ */
+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);
+}
+
+/*
+ * Write errormessage to statusbar and exit
+ *
+ */
+void die(const char *fmt, ...) {
+ char buffer[512];
+ va_list ap;
+ va_start(ap, fmt);
+ (void)vsnprintf(buffer, sizeof(buffer), fmt, ap);
+ va_end(ap);
+
+ if (wmii_path != NULL)
+ write_error_to_statusbar(buffer);
+ else
+ fprintf(stderr, "%s", buffer);
+ exit(EXIT_FAILURE);
+}
+
+/*
+ * 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.
+ *
+ */
+char *concat(const char *str1, const char *str2) {
+ static char concatbuf[32];
+ (void)snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2);
+ return concatbuf;
+}
--- /dev/null
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "i3status.h"
+
+/*
+ * 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.
+ *
+ */
+const char *get_battery_info(struct battery *bat) {
+ char buf[1024];
+ static char part[512];
+ char *walk, *last;
+ int full_design = -1,
+ remaining = -1,
+ present_rate = -1;
+ charging_status_t status = CS_DISCHARGING;
+
+ slurp(bat->path, buf, sizeof(buf));
+
+ for (walk = buf, last = buf; (walk-buf) < 1024; walk++) {
+ if (*walk == '\n') {
+ last = walk+1;
+ continue;
+ }
+
+ if (*walk != '=')
+ continue;
+
+ 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 {
+ /* The only thing left is the full capacity */
+ if (bat->use_last_full) {
+ if (!BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL") &&
+ !BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL"))
+ continue;
+ } else {
+ if (!BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN") &&
+ !BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN"))
+ continue;
+ }
+
+ full_design = atoi(walk+1);
+ }
+ }
+
+ 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),
+ max(hours, 0), max(minutes, 0), max(seconds, 0));
+ } 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;
+}
--- /dev/null
+#include <stdlib.h>
+#include <limits.h>
+#include <stdio.h>
+
+#include "i3status.h"
+
+/*
+ * Reads the CPU temperature from /sys/class/thermal/thermal_zone0/temp and
+ * returns the temperature in degree celcius.
+ *
+ */
+const char *get_cpu_temperature_info() {
+ static char buf[16];
+ long int temp;
+
+ slurp(thermal_zone, buf, sizeof(buf));
+ temp = strtol(buf, NULL, 10);
+
+ if (temp == LONG_MIN || temp == LONG_MAX || temp <= 0)
+ (void)snprintf(buf, sizeof(buf), "T: ? C");
+ else
+ (void)snprintf(buf, sizeof(buf), "T: %ld C", (temp/1000));
+
+ return buf;
+}
--- /dev/null
+#include <string.h>
+#include <limits.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <net/if.h>
+
+#ifdef LINUX
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#endif
+
+#include "i3status.h"
+
+/*
+ * Combines ethernet IP addresses and speed (if requested) for displaying
+ *
+ */
+const char *get_eth_info() {
+ static char part[512];
+ const char *ip_address = get_ip_addr(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;
+}
--- /dev/null
+#include <net/if.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <netdb.h>
+
+#include "i3status.h"
+
+/*
+ * 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
+ *
+ */
+const char *get_ip_addr(const char *interface) {
+ static char part[512];
+ struct ifreq ifr;
+ socklen_t len = sizeof(struct sockaddr_in);
+ memset(part, 0, sizeof(part));
+
+ /* First check if the interface is running */
+ (void)strcpy(ifr.ifr_name, interface);
+ if (ioctl(general_socket, SIOCGIFFLAGS, &ifr) < 0 ||
+ !(ifr.ifr_flags & IFF_RUNNING))
+ return NULL;
+
+ /* Interface is up, get the IP address */
+ (void)strcpy(ifr.ifr_name, interface);
+ ifr.ifr_addr.sa_family = AF_INET;
+ if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0)
+ return "no IP";
+
+ int ret;
+ if ((ret = getnameinfo(&ifr.ifr_addr, len, part, sizeof(part), NULL, 0, NI_NUMERICHOST)) != 0) {
+ fprintf(stderr, "getnameinfo(): %s\n", gai_strerror(ret));
+ return "no IP";
+ }
+
+ return part;
+}
+
--- /dev/null
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+/*
+ * Returns the IPv6 address with which you have connectivity at the moment.
+ *
+ */
+const char *get_ipv6_addr() {
+ static char buf[INET6_ADDRSTRLEN+1];
+ struct addrinfo hints;
+ struct addrinfo *result, *resp;
+ int fd;
+
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_family = AF_INET6;
+
+ if (getaddrinfo("k.root-servers.net", "domain", &hints, &result) != 0) {
+ perror("getaddrinfo()");
+ return "no IP";
+ }
+
+ for (resp = result; resp != NULL; resp = resp->ai_next) {
+ if ((fd = socket(resp->ai_family, SOCK_STREAM, 0)) == -1) {
+ perror("socket()");
+ continue;
+ }
+
+ if (connect(fd, resp->ai_addr, resp->ai_addrlen) == -1) {
+ perror("connect()");
+ continue;
+ }
+
+ struct sockaddr_storage local;
+ socklen_t local_len = sizeof(struct sockaddr_storage);
+ if (getsockname(fd, (struct sockaddr*)&local, &local_len) == -1) {
+ perror("getsockname()");
+ return "no IP";
+ }
+
+ memset(buf, 0, INET6_ADDRSTRLEN + 1);
+ int ret;
+ if ((ret = getnameinfo((struct sockaddr*)&local, local_len, buf, sizeof(buf), NULL, 0, NI_NUMERICHOST)) != 0) {
+ fprintf(stderr, "getnameinfo(): %s\n", gai_strerror(ret));
+ return "no IP";
+ }
+
+ (void)close(fd);
+
+ free(result);
+ return buf;
+ }
+
+ free(result);
+ return "no IP";
+}
--- /dev/null
+#include "i3status.h"
+
+const char *get_load() {
+ static char part[512];
+
+/* Get load */
+#ifdef LINUX
+ slurp("/proc/loadavg", part, sizeof(part));
+ *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
+
+ return part;
+}
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+
+#include "i3status.h"
+
+/*
+ * 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.
+ *
+ */
+const char *get_wireless_info() {
+ char buf[1024];
+ static char part[512];
+ char *interfaces;
+ memset(buf, 0, sizeof(buf));
+ memset(part, 0, sizeof(part));
+
+ slurp("/proc/net/wireless", buf, sizeof(buf));
+
+ 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_addr(wlan_interface));
+ return part;
+ }
+
+ return part;
+}
+
--- /dev/null
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <dirent.h>
+
+#include "i3status.h"
+
+/*
+ * Writes an errormessage to statusbar
+ *
+ */
+void write_error_to_statusbar(const char *message) {
+ cleanup_rbar_dir();
+ create_file("error");
+ write_to_statusbar("error", message, true);
+}
+
+/*
+ * Returns the correct color format for dzen (^fg(color)) or wmii (color <normcolors>)
+ *
+ */
+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
+ *
+ */
+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
+ *
+ */
+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
+ *
+ */
+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 (get_cpu_temperature)
+ create_file(concat(order[ORDER_CPU_TEMPERATURE], "cpu_temperature"));
+ 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
+ *
+ */
+void write_to_statusbar(const char *name, const char *message, bool final_entry) {
+#ifdef DZEN
+ if (final_entry) {
+ if (printf("%s^p(6)\n", message) < 0) {
+ perror("printf");
+ exit(1);
+ }
+
+ fflush(stdout);
+ return;
+ }
+ if (printf("%s" BAR, message) < 0) {
+ perror("printf");
+ exit(1);
+ }
+ 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);
+}
--- /dev/null
+#include <stdbool.h>
+#include <glob.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef LINUX
+/* TODO: correctly check for *BSD */
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/resource.h>
+#endif
+
+#include "i3status.h"
+
+/*
+ * 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
+ *
+ */
+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
+}
projects / i3 / i3status / commitdiff