Use own files for each function, add get_ipv6_addr.c

11 files changed, 762 insertions, 0 deletions

diff --git a/src/config.c b/src/config.c
new file mode 100644
index 0000000..5904512
--- /dev/null
+++ b/src/config.c
@@ -0,0 +1,145 @@
+#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;
+}
diff --git a/src/general.c b/src/general.c
new file mode 100644
index 0000000..4016ecd
--- /dev/null
+++ b/src/general.c
@@ -0,0 +1,70 @@
+#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;
+}
diff --git a/src/get_battery_info.c b/src/get_battery_info.c
new file mode 100644
index 0000000..b81eb8e
--- /dev/null
+++ b/src/get_battery_info.c
@@ -0,0 +1,88 @@
+#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;
+}
diff --git a/src/get_cpu_temperature.c b/src/get_cpu_temperature.c
new file mode 100644
index 0000000..56a559c
--- /dev/null
+++ b/src/get_cpu_temperature.c
@@ -0,0 +1,25 @@
+#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;
+}
diff --git a/src/get_eth_info.c b/src/get_eth_info.c
new file mode 100644
index 0000000..7561421
--- /dev/null
+++ b/src/get_eth_info.c
@@ -0,0 +1,49 @@
+#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;
+}
diff --git a/src/get_ip_addr.c b/src/get_ip_addr.c
new file mode 100644
index 0000000..de03d8c
--- /dev/null
+++ b/src/get_ip_addr.c
@@ -0,0 +1,43 @@
+#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;
+}
+
diff --git a/src/get_ipv6_addr.c b/src/get_ipv6_addr.c
new file mode 100644
index 0000000..44edc7a
--- /dev/null
+++ b/src/get_ipv6_addr.c
@@ -0,0 +1,61 @@
+#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";
+}
diff --git a/src/get_load.c b/src/get_load.c
new file mode 100644
index 0000000..7d5349f
--- /dev/null
+++ b/src/get_load.c
@@ -0,0 +1,25 @@
+#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;
+}
diff --git a/src/get_wireless_info.c b/src/get_wireless_info.c
new file mode 100644
index 0000000..fd0c60b
--- /dev/null
+++ b/src/get_wireless_info.c
@@ -0,0 +1,44 @@
+#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;
+}
+
diff --git a/src/output.c b/src/output.c
new file mode 100644
index 0000000..379710e
--- /dev/null
+++ b/src/output.c
@@ -0,0 +1,157 @@
+#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);
+}
diff --git a/src/process_runs.c b/src/process_runs.c
new file mode 100644
index 0000000..5e13de7
--- /dev/null
+++ b/src/process_runs.c
@@ -0,0 +1,55 @@
+#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
+}