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conky/mail.c

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#include "conky.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <dirent.h>
char *current_mail_spool;
static time_t last_mail_mtime;
static double last_mail_update;
void update_mail_count()
{
struct stat buf;
if (current_mail_spool == NULL)
return;
/* TODO: use that fine file modification notify on Linux 2.4 */
/* don't check mail so often (9.5s is minimum interval) */
if (current_update_time - last_mail_update < 9.5)
return;
else
last_mail_update = current_update_time;
if (stat(current_mail_spool, &buf)) {
static int rep;
if (!rep) {
ERR("can't stat %s: %s", current_mail_spool,
strerror(errno));
rep = 1;
}
return;
}
#if HAVE_DIRENT_H
/* maildir format */
if (S_ISDIR(buf.st_mode)) {
DIR *dir;
char *dirname;
struct dirent *dirent;
info.mail_count = 0;
info.new_mail_count = 0;
dirname =
(char *) malloc(sizeof(char) *
(strlen(current_mail_spool) + 5));
if (!dirname) {
ERR("malloc");
return;
}
strcpy(dirname, current_mail_spool);
strcat(dirname, "/");
/* checking the cur subdirectory */
strcat(dirname, "cur");
dir = opendir(dirname);
if (!dir) {
ERR("cannot open directory");
free(dirname);
return;
}
dirent = readdir(dir);
while (dirent) {
/* . and .. are skipped */
if (dirent->d_name[0] != '.') {
info.mail_count++;
}
dirent = readdir(dir);
}
closedir(dir);
dirname[strlen(dirname) - 3] = '\0';
strcat(dirname, "new");
dir = opendir(dirname);
if (!dir) {
ERR("cannot open directory");
free(dirname);
return;
}
dirent = readdir(dir);
while (dirent) {
/* . and .. are skipped */
if (dirent->d_name[0] != '.') {
info.new_mail_count++;
info.mail_count++;
}
dirent = readdir(dir);
}
closedir(dir);
free(dirname);
return;
}
#endif
/* mbox format */
if (buf.st_mtime != last_mail_mtime) {
/* yippee, modification time has changed, let's read mail count! */
static int rep;
FILE *fp;
int reading_status = 0;
/* could lock here but I don't think it's really worth it because
* this isn't going to write mail spool */
info.new_mail_count = 0;
info.mail_count = 0;
fp = open_file(current_mail_spool, &rep);
if (!fp)
return;
/* NOTE: adds mail as new if there isn't Status-field at all */
while (!feof(fp)) {
char buf[128];
if (fgets(buf, 128, fp) == NULL)
break;
if (strncmp(buf, "From ", 5) == 0) {
/* ignore MAILER-DAEMON */
if (strncmp(buf + 5, "MAILER-DAEMON ", 14)
!= 0) {
info.mail_count++;
if (reading_status)
info.new_mail_count++;
else
reading_status = 1;
}
} else {
if (reading_status
&& strncmp(buf, "X-Mozilla-Status:",
17) == 0) {
/* check that mail isn't already read */
if (strchr(buf + 21, '0'))
info.new_mail_count++;
reading_status = 0;
continue;
}
if (reading_status
&& strncmp(buf, "Status:", 7) == 0) {
/* check that mail isn't already read */
if (strchr(buf + 7, 'R') == NULL)
info.new_mail_count++;
reading_status = 0;
continue;
}
}
/* skip until \n */
while (strchr(buf, '\n') == NULL && !feof(fp))
fgets(buf, 128, fp);
}
fclose(fp);
if (reading_status)
info.new_mail_count++;
last_mail_mtime = buf.st_mtime;
}
}