Author: juha
Date: 2008-09-02 11:48:44 +0000 (Tue, 02 Sep 2008)
New Revision: 27642
Modified:
xfcalendar/trunk/tz_convert/tz_convert.c
Log:
alpha release of tz_convert.
do not use in production.
Modified: xfcalendar/trunk/tz_convert/tz_convert.c
===================================================================
--- xfcalendar/trunk/tz_convert/tz_convert.c 2008-09-02 00:40:30 UTC (rev
27641)
+++ xfcalendar/trunk/tz_convert/tz_convert.c 2008-09-02 11:48:44 UTC (rev
27642)
@@ -1,3 +1,24 @@
+/* Orage - Calendar and alarm handler
+ *
+ * Copyright (c) 2008 Juha Kautto (juha at xfce.org)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ Free Software Foundation
+ 51 Franklin Street, 5th Floor
+ Boston, MA 02110-1301 USA
+ */
+
#include <error.h>
#include <errno.h>
/* errno */
@@ -64,6 +85,15 @@
unsigned long typecnt; /* table of different time changes = types */
unsigned long charcnt; /* length of timezone name table */
+struct ical_data {
+ /* check and write needs these */
+ struct tm start_time;
+ long gmt_offset_hh, gmt_offset_mm;
+ unsigned int is_dst;
+ unsigned char *tz;
+ int hh_diff, mm_diff;
+};
+
read_file(const char *file_name, const struct stat *file_stat)
{
FILE *file;
@@ -285,7 +315,8 @@
ical_dir_name = strdup(&in_file_name[in_file_base_offset]);
if (mkdir(ical_dir_name, 0777))
{
- printf("creating directory=(%s) failed\n", ical_dir_name);
+ printf("create_ical_directory: creating directory=(%s) failed\n"
+ , ical_dir_name);
perror("\tmkdir");
}
free(ical_dir_name);
@@ -334,12 +365,20 @@
for (s_dir = strchr(s_dir, '/'); s_dir != NULL
; s_dir = strchr(s_dir, '/')) {
*s_dir = '\0';
- printf("creating directory=(%s)\n", out_file);
+ printf("create_ical_file: creating directory=(%s)\n",
out_file);
if (mkdir(out_file, 0777))
{
- printf("creating directory=(%s) failed\n", out_file);
- perror("\tmkdir");
- return(2);
+ if (errno == EEXIST) {
+ printf("create_ical_file: ignoring error (%s)\n"
+ , out_file);
+ perror("\tmkdir");
+ }
+ else {
+ printf("create_ical_file: creating directory=(%s)
failed\n"
+ , out_file);
+ perror("\tmkdir");
+ return(2);
+ }
}
*s_dir = '/';
*s_dir++;
@@ -362,46 +401,73 @@
return(0);
}
+void write_ical_str(char *data)
+{
+ int len;
+
+ len = strlen(data);
+ fwrite(data, 1, len, ical_file);
+}
+
void write_ical_header()
{
char *vcalendar = "BEGIN:VCALENDAR\nPRODID:-//Xfce//NONSGML Orage
Olson-VTIMEZONE Converter//EN\nVERSION:2.0\n";
char *vtimezone =
"BEGIN:VTIMEZONE\nTZID:/softwarestudio.org/Olson_20011030_5/";
char *xlic = "X-LIC-LOCATION:";
char *line = "\n";
- int len;
- len = strlen(vcalendar);
- fwrite(vcalendar, 1, len, ical_file);
+ write_ical_str(vcalendar);
+ write_ical_str(vtimezone);
+ write_ical_str(timezone_name);
+ write_ical_str(line);
+ write_ical_str(xlic);
+ write_ical_str(timezone_name);
+ write_ical_str(line);
+}
- len = strlen(vtimezone);
- fwrite(vtimezone, 1, len, ical_file);
+struct ical_data wit_get_data(int i) {
+ unsigned long tc_time;
+ long gmt_offset;
+ unsigned int tct_i, abbr_i;
+ struct ical_data data;
- len = strlen(timezone_name);
- fwrite(timezone_name, 1, len, ical_file);
+ /* get timechange time */
+ in_head = begin_timechanges;
+ in_head += 4*i; /* point to our row */
+ tc_time = get_long();
+ localtime_r(&tc_time, &data.start_time );
- len = strlen(line);
- fwrite(line, 1, len, ical_file);
+ /* get timechange type index */
+ in_head = begin_timechangetypeindexes;
+ tct_i = (unsigned int)in_head[i];
- len = strlen(xlic);
- fwrite(xlic, 1, len, ical_file);
+ /* get timechange type */
+ in_head = begin_timechangetypes;
+ in_head += 6*tct_i;
+ gmt_offset = get_long();
+ data.gmt_offset_hh = gmt_offset / (60*60);
+ data.gmt_offset_mm = (gmt_offset - data.gmt_offset_hh * (60*60)) / 60;
+ data.is_dst = in_head[0];
+ abbr_i = in_head[1];
- len = strlen(timezone_name);
- fwrite(timezone_name, 1, len, ical_file);
-
- len = strlen(line);
- fwrite(line, 1, len, ical_file);
+ /* get timezone name */
+ in_head = begin_timezonenames;
+ data.tz = in_head + abbr_i;
+ return(data);
}
void write_ical_timezones()
{
- unsigned long tc_time;
- struct tm *start_time;
- long gmt_offset, gmt_offset_hh, gmt_offset_mm;
- static long prev_gmt_offset_hh=0, prev_gmt_offset_mm=0;
- unsigned int tct_i, is_dst, abbr_i;
- unsigned char *tz;
+ int i;
+ struct ical_data ical_data
+ , ical_data_prev = { {0, 0, 0, 0, 0, 0, 0}, 0, 0, 0, NULL, 0, 0}
+ , data_cur_std
+ , data_prev_std = { {0, 0, 0, 0, 0, 0, 0}, 0, 0, 0, NULL, 0, 0}
+ , data_cur_dst
+ , data_prev_dst = { {0, 0, 0, 0, 0, 0, 0}, 0, 0, 0, NULL, 0, 0};
+ /* only write needs these */
char str[100];
- int i, len, hh_diff, mm_diff;
+ int len;
char *dst_begin="BEGIN:DAYLIGHT\n";
char *dst_end="END:DAYLIGHT\n";
char *std_begin="BEGIN:STANDARD\n";
@@ -417,104 +483,103 @@
}
for (i = 0; i < timecnt; i++) {
- /***** get data *****/
+ /***** get data *****/
+ ical_data = wit_get_data(i);
+ if (ical_data.is_dst) {
+ data_cur_dst = ical_data;
+ }
+ else {
+ data_cur_std = ical_data;
+ }
+ if (i == 0) { /* first round, do starting values */
+ ical_data_prev = ical_data;
+ /*
+ if (ical_data.is_dst) {
+ data_prev_dst = ical_data_prev;
+ }
+ else {
+ data_prev_std = ical_data_prev;
+ }
+ */
+ }
- /* get timechange time */
- in_head = begin_timechanges;
- in_head += 4*i;
- tc_time = get_long();
- start_time = localtime(&tc_time);
-
- /* get timechange type index */
- in_head = begin_timechangetypeindexes;
- tct_i = (unsigned int)in_head[i];
-
- /* get timechange type */
- in_head = begin_timechangetypes;
- in_head += 6*tct_i;
- gmt_offset = get_long();
- gmt_offset_hh = gmt_offset / (60*60);
- gmt_offset_mm = (gmt_offset - gmt_offset_hh * (60*60)) / 60;
- is_dst = in_head[0];
- abbr_i = in_head[1];
-
/* ical needs the startime in the previous (=current) time, so we need to
* adjust by the difference */
- if (i==0) {
- prev_gmt_offset_hh = gmt_offset_hh;
- prev_gmt_offset_mm = gmt_offset_mm;
- }
- hh_diff = prev_gmt_offset_hh - gmt_offset_hh;
- mm_diff = prev_gmt_offset_mm - gmt_offset_mm;
+ ical_data.hh_diff = ical_data_prev.gmt_offset_hh
+ - ical_data.gmt_offset_hh;
+ ical_data.mm_diff = ical_data_prev.gmt_offset_mm
+ - ical_data.gmt_offset_mm;
- if (hh_diff + start_time->tm_hour < 0 || hh_diff + start_time->tm_hour > 23
- || mm_diff + start_time->tm_min < 0 || mm_diff + start_time->tm_min > 59)
{
- if (debug > 1)
- printf("Error counting startime %s:\n", timezone_name);
- hh_diff = 0;
- mm_diff = 0;
- }
+ if (ical_data.hh_diff + ical_data.start_time.tm_hour < 0
+ || ical_data.hh_diff + ical_data.start_time.tm_hour > 23
+ || ical_data.mm_diff + ical_data.start_time.tm_min < 0
+ || ical_data.mm_diff + ical_data.start_time.tm_min > 59) {
+ if (debug > 1)
+ printf("Error counting startime %s:\n", timezone_name);
+ ical_data.hh_diff = 0;
+ ical_data.mm_diff = 0;
+ }
- /* get timezone name */
- in_head = begin_timezonenames;
- tz = in_head + abbr_i;
+ /***** check if we need this data *****/
+ if (ical_data.start_time.tm_year + 1900 < ignore_older) {
+ /* too old, we are not interested */
+ if (debug > 2)
+ printf("\tskip %d = %s", i, asctime(&ical_data.start_time));
+ ical_data_prev = ical_data;
+ if (ical_data.is_dst) {
+ data_prev_dst = ical_data;
+ }
+ else {
+ data_prev_std = ical_data;
+ }
+ continue;
+ }
+
/***** write data *****/
-
- if (start_time->tm_year + 1900 < ignore_older) {
- if (debug > 2)
- printf("\tskip %d: %u = %s", i, tc_time, asctime(start_time));
- prev_gmt_offset_hh = gmt_offset_hh;
- prev_gmt_offset_mm = gmt_offset_mm;
- continue;
+ if (ical_data.is_dst) {
+ write_ical_str(dst_begin);
}
-
- /* write timezone entry */
- if (is_dst) {
- len = strlen(dst_begin);
- fwrite(dst_begin, 1, len, ical_file);
- }
else {
- len = strlen(std_begin);
- fwrite(std_begin, 1, len, ical_file);
+ write_ical_str(std_begin);
}
- snprintf(str, 99, "TZOFFSETFROM:%+03d%02d\n"
- , prev_gmt_offset_hh, prev_gmt_offset_mm);
- len = strlen(str);
+ len = snprintf(str, 30, "TZOFFSETFROM:%+03d%02d\n"
+ , ical_data_prev.gmt_offset_hh, ical_data_prev.gmt_offset_mm);
fwrite(str, 1, len, ical_file);
- snprintf(str, 99, "TZOFFSETTO:%+03d%02d\n", gmt_offset_hh, gmt_offset_mm);
- len = strlen(str);
+ len = snprintf(str, 30, "TZOFFSETTO:%+03d%02d\n"
+ , ical_data.gmt_offset_hh, ical_data.gmt_offset_mm);
fwrite(str, 1, len, ical_file);
- prev_gmt_offset_hh = gmt_offset_hh;
- prev_gmt_offset_mm = gmt_offset_mm;
+ ical_data_prev = ical_data;
- len = snprintf(str, 99, "TZNAME:%s\n", tz);
+ len = snprintf(str, 99, "TZNAME:%s\n", ical_data.tz);
fwrite(str, 1, len, ical_file);
- len = snprintf(str, 99, "DTSTART:%04d%02d%02dT%02d%02d%02d\n"
- , start_time->tm_year + 1900, start_time->tm_mon + 1
- , start_time->tm_mday
- , start_time->tm_hour + hh_diff, start_time->tm_min + mm_diff
- , start_time->tm_sec);
+ len = snprintf(str, 30, "DTSTART:%04d%02d%02dT%02d%02d%02d\n"
+ , ical_data.start_time.tm_year + 1900
+ , ical_data.start_time.tm_mon + 1
+ , ical_data.start_time.tm_mday
+ , ical_data.start_time.tm_hour + ical_data.hh_diff
+ , ical_data.start_time.tm_min + ical_data.mm_diff
+ , ical_data.start_time.tm_sec);
fwrite(str, 1, len, ical_file);
- len = snprintf(str, 99, "RDATE:%04d%02d%02dT%02d%02d%02d\n"
- , start_time->tm_year + 1900, start_time->tm_mon + 1
- , start_time->tm_mday
- , start_time->tm_hour + hh_diff, start_time->tm_min + mm_diff
- , start_time->tm_sec);
+ len = snprintf(str, 30, "RDATE:%04d%02d%02dT%02d%02d%02d\n"
+ , ical_data.start_time.tm_year + 1900
+ , ical_data.start_time.tm_mon + 1
+ , ical_data.start_time.tm_mday
+ , ical_data.start_time.tm_hour + ical_data.hh_diff
+ , ical_data.start_time.tm_min + ical_data.mm_diff
+ , ical_data.start_time.tm_sec);
fwrite(str, 1, len, ical_file);
- if (is_dst) {
- len = strlen(dst_end);
- fwrite(dst_end, 1, len, ical_file);
+ if (ical_data.is_dst) {
+ write_ical_str(dst_end);
}
else {
- len = strlen(std_end);
- fwrite(std_end, 1, len, ical_file);
+ write_ical_str(std_end);
}
}
printf("write_ical_timezones: end\n");
@@ -523,10 +588,8 @@
void write_ical_ending()
{
char *end= "END:VTIMEZONE\nEND:VCALENDAR\n";
- int len;
- len = strlen(end);
- fwrite(end, 1, len, ical_file);
+ write_ical_str(end);
}
/* FIXME: need to check that if OUTFILE is given as a parameter,
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