X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=wmiistatus.c;h=33575a5234f12557308f05eeafa5b2d96157700f;hb=65251638ddea3310ed69534191198afa9e9d97ed;hp=d6ebc1406b29ebf0f4fc5027f78f456941f56758;hpb=949728e8c5a7855663bcd6f6c8b0eab7af055ac4;p=i3%2Fi3status diff --git a/wmiistatus.c b/wmiistatus.c index d6ebc14..33575a5 100644 --- a/wmiistatus.c +++ b/wmiistatus.c @@ -1,3 +1,36 @@ +/* + * Generates a status line for use with wmii or other minimal window managers + * + * + * Copyright (c) 2008 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 #include #include @@ -13,16 +46,26 @@ #include #include #include +#include "wmiistatus.h" -const char *wlan_interface = "wlan0"; -const char *eth_interface = "eth0"; +#include "config.h" -// TODO: run-watches, z.B. -// "/var/run/dhcp*.pid" --> checkt ob's das file gibt, ob der prozess läuft und zeigt dann yes/no an -// "/var/run/vpnc*.pid" +static void write_to_statusbar(const char *message) { + int fd = open(wmii_path, O_RDWR); + if (fd == -1) + exit(-2); + write(fd, message, strlen(message)); + close(fd); +} -char output[512]; -bool first_push = true; +/* + * Write errormessage to statusbar and exit + * + */ +static void die(const char *message) { + write_to_statusbar(message); + exit(-1); +} static char *skip_character(char *input, char character, int amount) { char *walk; @@ -51,45 +94,55 @@ static void push_part(const char *input, const int n) { */ static char *get_battery_info() { char buf[1024]; - static char output[512]; + static char part[512]; char *walk, *last = buf; int fd = open("/sys/class/power_supply/BAT0/uevent", O_RDONLY); + if (fd == -1) + die("Could not open /sys/class/power_supply/BAT0/uevent"); int full_design = -1, remaining = -1, present_rate = -1; - bool charging = false; - memset(output, '\0', sizeof(output)); + charging_status_t status = CS_DISCHARGING; + memset(part, '\0', sizeof(part)); read(fd, buf, sizeof(buf)); for (walk = buf; (walk-buf) < 1024; walk++) if (*walk == '=') { - if (strncmp(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN", strlen("POWER_SUPPLY_ENERGY_FULL_DESIGN")) == 0) + if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN")) full_design = atoi(walk+1); - else if (strncmp(last, "POWER_SUPPLY_ENERGY_NOW", strlen("POWER_SUPPLY_ENERGY_NOW")) == 0) + else if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW")) remaining = atoi(walk+1); - else if (strncmp(last, "POWER_SUPPLY_CURRENT_NOW", strlen("POWER_SUPPLY_CURRENT_NOW")) == 0) + else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW")) present_rate = atoi(walk+1); - else if (strncmp(last, "POWER_SUPPLY_STATUS=Charging", strlen("POWER_SUPPLY_STATUS=Charging")) == 0) - charging = true; + 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; close(fd); if ((full_design != -1) && (remaining != -1) && (present_rate != -1)) { - float time, perc; - if (charging) - time = ((float)full_design - (float)remaining) / (float)present_rate; - else time = ((float)remaining / (float)present_rate); + float remaining_time, perc; + 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 { + snprintf(part, sizeof(part), "FULL"); + return part; + } perc = ((float)remaining / (float)full_design); - int seconds = (int)(time * 3600.0); + int seconds = (int)(remaining_time * 3600.0); int hours = seconds / 3600; seconds -= (hours * 3600); int minutes = seconds / 60; seconds -= (minutes * 60); - sprintf(output, "%s %.02f%% %02d:%02d:%02d", (charging ? "CHR" : "BAT"), (perc * 100), hours, minutes, seconds); + sprintf(part, "%s %.02f%% %02d:%02d:%02d", (status == CS_CHARGING? "CHR" : "BAT"), + (perc * 100), hours, minutes, seconds); } - return output; + return part; } /* @@ -98,10 +151,10 @@ static char *get_battery_info() { */ static char *get_wireless_info() { char buf[1024]; - static char output[512]; + static char part[512]; char *interfaces; memset(buf, '\0', sizeof(buf)); - memset(output, '\0', sizeof(output)); + memset(part, '\0', sizeof(part)); int fd = open("/proc/net/wireless", O_RDONLY); read(fd, buf, sizeof(buf)); @@ -119,34 +172,34 @@ static char *get_wireless_info() { interfaces++; int quality = atoi(interfaces); /* For some reason, I get 255 sometimes */ - if (quality == 255) - quality = 0; - snprintf(output, sizeof(output), "W: (%02d%%) ", quality); - return output; + if ((quality == 255) || (quality == 0)) + snprintf(part, sizeof(part), "W: down"); + else snprintf(part, sizeof(part), "W: (%02d%%) ", quality); + // TODO: get IP address + return part; } interfaces = skip_character(interfaces, '\n', 1) + 1; } - return output; + return part; } static char *get_eth_info() { - static char output[512]; + static char part[512]; struct ifreq ifr; - memset(output, '\0', sizeof(output)); + memset(part, '\0', sizeof(part)); int fd = socket(AF_INET, SOCK_DGRAM, 0); strcpy(ifr.ifr_name, eth_interface); - if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) { - printf("böses fehler\n"); - /* TODO: errorhandling */ - } + if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) + die("Could not get interface flags (SIOCGIFFLAGS)"); + if (!(ifr.ifr_flags & IFF_UP) || !(ifr.ifr_flags & IFF_RUNNING)) { - sprintf(output, "E: down"); + sprintf(part, "E: down"); close(fd); - return output; + return part; } strcpy(ifr.ifr_name, eth_interface); @@ -154,17 +207,17 @@ static char *get_eth_info() { if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { struct sockaddr_in addr; memcpy(&addr, &ifr.ifr_addr, sizeof(struct sockaddr_in)); - inet_ntop(AF_INET, &addr.sin_addr.s_addr, output+3, sizeof(struct sockaddr_in)); - strncpy(output, "E: ", strlen("E: ")); - if (strlen(output) == 0) - sprintf(output, "E: no IP"); + inet_ntop(AF_INET, &addr.sin_addr.s_addr, part+3, sizeof(struct sockaddr_in)); + strncpy(part, "E: ", strlen("E: ")); + if (strlen(part) == 0) + sprintf(part, "E: no IP"); } close(fd); - return output; + return part; } -int main() { +int main(void) { char part[512], *end;