-wmiistatus: wmiistatus.c wmiistatus.h config.h Makefile
- gcc -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -g -O2 -o wmiistatus wmiistatus.c
+wmiistatus: wmiistatus.c wmiistatus.h config.h config.c Makefile
+ gcc -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -g -c -o wmiistatus.o wmiistatus.c
+ gcc -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -g -c -o config.o config.c
+ gcc -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -g -o wmiistatus *.o
install:
install -m 755 -d $(DESTDIR)/usr/bin
install -m 755 -d $(DESTDIR)/etc/init.d
install -m 755 wmiistatus $(DESTDIR)/usr/bin/wmiistatus
install -m 755 wmiistatus.init $(DESTDIR)/etc/init.d/wmiistatus
+ install -m 644 wmiistatus.conf $(DESTDIR)/etc/wmiistatus.conf
all: wmiistatus
--- /dev/null
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <glob.h>
+#include <unistd.h>
+
+#define _IS_CONFIG_C
+#include "config.h"
+#undef _IS_CONFIG_C
+
+const char *wlan_interface;
+const char *eth_interface;
+const char *wmii_path;
+const char *time_format;
+const char *battery_path;
+bool use_colors;
+const char *wmii_normcolors;
+char order[MAX_ORDER][2];
+const char **run_watches;
+unsigned int num_run_watches;
+
+void die(const char *fmt, ...);
+
+/*
+ * This function exists primarily for resolving ~ in pathnames. However, you
+ * can also specify ~/Movies/ *, which will only return the first match!
+ *
+ */
+char *glob_path(const char *path) {
+ static glob_t globbuf;
+ if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
+ die("glob() failed");
+ char *result = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
+ globfree(&globbuf);
+ return result;
+}
+
+/*
+ * Loads configuration from configfile
+ *
+ */
+static void get_next_config_entry(FILE *handle, char **dest_name, char **dest_value, char *whole_buffer, int whole_buffer_size) {
+ char *ret;
+ if ((ret = fgets(whole_buffer, whole_buffer_size, handle)) == whole_buffer) {
+ char *c = whole_buffer;
+ /* Skip whitespaces in the beginning */
+ while (isspace((int)*c) && *c != '\0')
+ c++;
+ *dest_name = c;
+ while (!isspace((int)*c))
+ c++;
+ /* Terminate string as soon as whitespaces begin or it's terminated anyway */
+ *(c++) = '\0';
+
+ /* Same for the value: strip whitespaces */
+ while (isspace((int)*c) && *c != '\0')
+ c++;
+ *dest_value = c;
+ /* Whitespace is allowed, newline/carriage return is not */
+ while ((*c != '\n') && (*c != '\r') && (*c != '\0'))
+ c++;
+ *c = 0;
+ } else if (ret != NULL)
+ die("Could not read line in configuration file");
+}
+
+/*
+ * 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");
+ char *dest_name = NULL, *dest_value = NULL, whole_buffer[1026];
+ struct stat stbuf;
+ while (!feof(handle)) {
+ get_next_config_entry(handle, &dest_name, &dest_value, whole_buffer, 1024);
+ /* No more entries? We're done! */
+ if (dest_name == NULL)
+ break;
+ /* 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("wmii_path")
+ {
+ char *globbed = glob_path(dest_value);
+ if ((stat(globbed, &stbuf)) == -1)
+ die("wmii_path contains an invalid path");
+ if (globbed[strlen(globbed)-1] != '/')
+ die("wmii_path is not terminated by /");
+ wmii_path = globbed;
+ }
+ OPT("time_format")
+ {
+ time_format = strdup(dest_value);
+ }
+ OPT("battery_path")
+ {
+ if ((stat(dest_value, &stbuf)) == -1)
+ die("battery_path contains an invalid path");
+ battery_path = strdup(dest_value);
+ }
+ 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;
+ }
+ }
+ OPT("color")
+ {
+ use_colors = true;
+ }
+ OPT("normcolors")
+ {
+ wmii_normcolors = strdup(dest_value);
+ }
+ else
+ {
+ result = -2;
+ die("Unknown configfile option: %s\n", dest_name);
+ }
+ dest_name = dest_value = NULL;
+ }
+ fclose(handle);
+
+ if (wmii_path == NULL)
+ die("No wmii_path specified in configuration file");
+
+ return result;
+}
-const char *wlan_interface = "wlan0";
-const char *eth_interface = "eth0";
-/* wmii_path has to be terminated by slash */
-const char *wmii_path = "/mnt/wmii/rbar/";
-const char *time_format = "%d.%m.%Y %H:%M:%S";
-const char *battery = "/sys/class/power_supply/BAT0/uevent";
-const char *run_watches[] = {"DHCP", "/var/run/dhclient.pid",
- "VPN", "/var/run/vpnc*.pid"};
+#include <stdbool.h>
-#define ORDER_RUN "0"
-#define ORDER_WLAN "1"
-#define ORDER_ETH "2"
-#define ORDER_BATTERY "3"
-#define ORDER_LOAD "4"
-#define ORDER_TIME "5"
+#ifndef _CONFIG_H
+#define _CONFIG_H
-#define USE_COLORS
-#define WMII_NORMCOLORS "#000000 #333333" /* <background> <border> */
+enum { ORDER_RUN, ORDER_WLAN, ORDER_ETH, ORDER_BATTERY, ORDER_LOAD, ORDER_TIME, MAX_ORDER };
+
+#ifndef _IS_CONFIG_C /* Definitions for everybody */
+extern const char *wlan_interface;
+extern const char *eth_interface;
+extern const char *wmii_path;
+extern const char *time_format;
+extern const char *battery_path;
+extern const char **run_watches;
+extern unsigned int num_run_watches;
+extern const char *wmii_normcolors;
+extern const char order[MAX_ORDER][2];
+
+extern bool use_colors;
+#endif
+
+char *glob_path(const char *path);
+int load_configuration(const char *configfile);
+
+#endif
#include <glob.h>
#include <dirent.h>
+#define _IS_WMIISTATUS_C
#include "wmiistatus.h"
+#undef _IS_WMIISTATUS_C
#include "config.h"
+/*
+ * 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];
+ snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2);
+ return concatbuf;
+}
+
static void cleanup_rbar_dir() {
struct dirent *ent;
DIR *dir;
int fd = creat(pathbuf, S_IRUSR | S_IWUSR);
if (fd < 0)
exit(-4);
-#ifdef USE_COLORS
- write(fd, "#888888 " WMII_NORMCOLORS, strlen("#888888 " WMII_NORMCOLORS));
-#endif
+ if (use_colors) {
+ char *tmp = concat("#888888 ", wmii_normcolors);
+ write(fd, tmp, strlen(tmp));
+ }
close(fd);
}
static void write_error_to_statusbar(const char *message) {
cleanup_rbar_dir();
+ create_file("error");
write_to_statusbar("error", message);
}
* Write errormessage to statusbar and exit
*
*/
-static void die(const char *fmt, ...) {
+void die(const char *fmt, ...) {
char buffer[512];
va_list ap;
va_start(ap, fmt);
char buf[1024];
static char part[512];
char *walk, *last = buf;
- int fd = open(battery, O_RDONLY);
+ int fd = open(battery_path, O_RDONLY);
if (fd == -1)
- die("Could not open %s", battery);
+ die("Could not open %s", battery_path);
int full_design = -1,
remaining = -1,
present_rate = -1;
int quality = atoi(interfaces);
/* For some reason, I get 255 sometimes */
if ((quality == 255) || (quality == 0)) {
-#ifdef USE_COLORS
- snprintf(part, sizeof(part), "#FF0000 " WMII_NORMCOLORS " W: down");
-#else
- snprintf(part, sizeof(part), "W: down");
-#endif
+ if (use_colors)
+ snprintf(part, sizeof(part), "%s%s", concat("#FF0000 ", wmii_normcolors), " W: down");
+ else snprintf(part, sizeof(part), "W: down");
} else {
snprintf(part, sizeof(part), "W: (%02d%%) ", quality);
*end;
unsigned int i;
+ load_configuration("/etc/wmiistatus.conf");
cleanup_rbar_dir();
- create_file(ORDER_WLAN "wlan");
- create_file(ORDER_ETH "eth");
- create_file(ORDER_BATTERY "battery");
- create_file(ORDER_LOAD "load");
- create_file(ORDER_TIME "time");
- for (i = 0; i < sizeof(run_watches) / sizeof(char*); i += 2) {
- sprintf(pathbuf, "%s%s", ORDER_RUN, run_watches[i]);
+ 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) {
+ sprintf(pathbuf, "%s%s", order[ORDER_RUN], run_watches[i]);
create_file(pathbuf);
}
while (1) {
- for (i = 0; i < sizeof(run_watches) / sizeof(char*); i += 2) {
+ for (i = 0; i < num_run_watches; i += 2) {
bool running = process_runs(run_watches[i+1]);
-#ifdef USE_COLORS
- sprintf(part, "%s %s: %s", (running ? "#00FF00 " WMII_NORMCOLORS : "#FF0000 " WMII_NORMCOLORS), run_watches[i], (running ? "yes" : "no"));
-#else
- sprintf(part, "%s: %s", run_watches[i], (running ? "yes" : "no"));
-#endif
- sprintf(pathbuf, "%s%s", ORDER_RUN, run_watches[i]);
+ if (use_colors)
+ sprintf(part, "%s %s: %s", (running ? concat("#00FF00 ", wmii_normcolors) : concat("#FF0000 ", wmii_normcolors)), run_watches[i], (running ? "yes" : "no"));
+ else sprintf(part, "%s: %s", run_watches[i], (running ? "yes" : "no"));
+ sprintf(pathbuf, "%s%s", order[ORDER_RUN], run_watches[i]);
write_to_statusbar(pathbuf, part);
}
- write_to_statusbar(ORDER_WLAN "wlan", get_wireless_info());
- write_to_statusbar(ORDER_ETH "eth", get_eth_info());
- write_to_statusbar(ORDER_BATTERY "battery", get_battery_info());
+ if (wlan_interface)
+ write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info());
+ if (eth_interface)
+ write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info());
+ if (battery_path)
+ write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info());
/* Get load */
int load_avg = open("/proc/loadavg", O_RDONLY);
close(load_avg);
end = skip_character(part, ' ', 3);
*end = '\0';
- write_to_statusbar(ORDER_LOAD "load", part);
-
- /* Get date & time */
- time_t current_time = time(NULL);
- struct tm *current_tm = localtime(¤t_time);
- strftime(part, sizeof(part), time_format, current_tm);
- write_to_statusbar(ORDER_TIME "time", part);
+ write_to_statusbar(concat(order[ORDER_LOAD], "load"), part);
+
+ if (time_format) {
+ /* Get date & time */
+ time_t current_time = time(NULL);
+ struct tm *current_tm = localtime(¤t_time);
+ strftime(part, sizeof(part), time_format, current_tm);
+ write_to_statusbar(concat(order[ORDER_TIME], "time"), part);
+ }
sleep(1);
}
typedef enum { CS_DISCHARGING, CS_CHARGING, CS_FULL } charging_status_t;
+#ifdef _IS_WMIISTATUS_C
+static char *concat(const char *str1, const char *str2);
static void cleanup_rbar_dir(void);
static void write_to_statusbar(const char *name, const char *message);
static void write_error_to_statusbar(const char *message);
-static void die(const char *fmt, ...);
static char *skip_character(char *input, char character, int amount);
static char *get_battery_info(void);
static char *get_wireless_info(void);
static char *get_ip_address(const char *interface);
static char *get_eth_info(void);
static bool process_runs(const char *path);
+#endif
+
+void die(const char *fmt, ...);
projects / i3 / i3status / commitdiff