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// vim:ts=8:expandtab
#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
#define cf(orderidx, name) create_file(order_to_str(order[orderidx], name));
cleanup_rbar_dir();
if (wlan_interface)
cf(ORDER_WLAN, "wlan");
if (eth_interface)
cf(ORDER_ETH, "eth");
if (get_cpu_temperature)
cf(ORDER_CPU_TEMPERATURE, "cpu_temperature");
cf(ORDER_LOAD, "load");
if (time_format)
cf(ORDER_TIME, "time");
for (i = 0; i < num_run_watches; i += 2) {
snprintf(pathbuf, sizeof(pathbuf), "%d%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);
}
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