reorganizations and got time zone

src/cut_string.c

@@ -1,41 +0,0 @@
-// cut a string into two parts by the first occurence of delimiter
-// and choose the first part (side 0) or the second part (side 1)
-// the chosen part will overwrite the original string
-
-// cut a string into two parts by delimiter
-// and choose the first part (side 0) or the second part (side 1)
-// the chosen part will overwrite the original string
-
-#include <string.h>
-
-void cut_string(char my_string[], char delimiter, int side) {
-	char part1[256] = "";
-	char part2[256] = "";
-
-	int split = 0;
-
-	int j = 0;
-	for (int i = 0; i < strlen(my_string); i++) {
-		if (my_string[i] == delimiter) {
-			if (split == 0) {
-				split = 1;
-				continue;
-			}
-		}
-
-		if (split == 0) {
-			part1[i] = my_string[i];
-		} else {
-			part2[j] = my_string[i];
-			j++;
-		}
-	}
-
-	memset(my_string, '\0', strlen(my_string));
-	if (side == 0) {
-		strcpy(my_string, part1);
-	} else {
-		strcpy(my_string, part2);
-	}
-}
-

src/cut_string.h

@@ -1,5 +0,0 @@
-#pragma once
-
-// cut string into two parts and choose one part
-// side is 0 or 1
-void cut_string(char my_string[], char delimiter, int side);

src/date_time_handling.c

@@ -1,8 +1,9 @@
 #include "date_time_handling.h"
 #include <stdio.h>
 #include <stdlib.h>
-#include <time.h>
 #include <string.h>
+#include <time.h>
+#include <unistd.h>
 
 // buffer needs to contain a string with a strlen of 15 (format: "xxxxxxxxTxxxxxx")
 // or a strlen of 16 (format: "YYYYmmddTHHMMSSZ")
@@ -50,3 +51,17 @@ void print_end_date(char end_date[]) {
 	printf ("%c%c", time[4], time[5]);
 }
 
+char *get_tz() {
+	char *timezone_path = malloc(256);
+	ssize_t bytes_read = readlink("/etc/localtime", timezone_path, 255);
+
+	if (bytes_read != -1) {
+		// Null-terminate the string
+    	timezone_path[bytes_read] = '\0';
+	} else {
+		perror("readlink");
+		exit(1);
+	}
+
+	return timezone_path;
+}

src/date_time_handling.h

@@ -2,5 +2,6 @@
 #include <string.h>
 
 void get_date(char buffer[]);
+char *get_tz();
 void pretty_print_date_time(char date_time[]);
 void print_end_date(char end_date[]);

src/insert_event.c

@@ -1,4 +1,5 @@
 #include "insert_event.h"
+#include "string_handling.h"
 #include "date_time_handling.h"
 #include <fcntl.h>
 #include <stdio.h>
@@ -15,6 +16,10 @@ void insert_event(char *file_name) {
 	uuid_t uuid;
 	char uuid_str[37] = "";
 	char dtstamp[] = "YYYYmmddTHHMMSSZ";
+	char *time_zone = get_tz();
+	remove_until_delim(time_zone, '/', 4);
+
+	printf ("tz is: %s\n", time_zone);
 
 	printf("Insert a new event\n");
 
@@ -56,6 +61,7 @@ void insert_event(char *file_name) {
 	write(myfd, "END:VCALENDAR\r\n", strlen("END:VCALENDAR\r\n"));
 
 	close(myfd);
+	free(time_zone);
 
 	exit(0);
 }

src/main.c

@@ -1,12 +1,11 @@
 #include "cli_arg_parsing.h"
 #include "date_time_handling.h"
 #include "list_handling.h"
-#include "cut_string.h"
+#include "string_handling.h"
 #include "move_lines.h"
 #include "read_until_nl.h"
 #include "read_until_string.h"
 #include "seek_string_a.h"
-#include "remove_whitespace.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <fcntl.h>

src/remove_whitespace.c

@@ -1,45 +0,0 @@
-// this function removes all new lines and carriage returns from a string
-// you might want to write a new function that replaces '\r' and '\n'
-// with a delimiter of user's choice
-
-#include <string.h>
-
-void remove_nl_and_cr(char raw_string[]) {
-  char processed_string[strlen(raw_string)];
-
-  // counter for num of elements of processed_string
-  int j = 0;
-  for (int i = 0; i<strlen(raw_string); i++) {
-    if (raw_string[i] == '\n' || raw_string[i] == '\r') {
-      continue;
-    } else {
-      processed_string[j] = raw_string[i];
-      j++;
-    }
-  }
-  processed_string[j] = '\0';
-
-  memset(raw_string, '\0', strlen(raw_string));
-  strcpy(raw_string, processed_string);
-}
-
-// remove new lines, carriage returns and spaces
-void remove_whitespace(char raw_string[]) {
-  char processed_string[strlen(raw_string)];
-
-  // counter for num of elements of processed_string
-  int j = 0;
-  for (int i = 0; i<strlen(raw_string); i++) {
-    if (raw_string[i] == '\n' || raw_string[i] == '\r' \
-			|| raw_string[i] == ' ') {
-      continue;
-    } else {
-      processed_string[j] = raw_string[i];
-      j++;
-    }
-  }
-  processed_string[j] = '\0';
-
-  memset(raw_string, '\0', strlen(raw_string));
-  strcpy(raw_string, processed_string);
-}

src/remove_whitespace.h

@@ -1,8 +0,0 @@
-// this function removes all new lines and carriage returns from a string
-// you might want to write a new function that replaces '\r' and '\n'
-// with a delimiter of user's choice
-
-#pragma once
-
-void remove_nl_and_cr(char raw_string[]);
-void remove_whitespace(char raw_string[]);

src/string_handling.c

@@ -0,0 +1,103 @@
+// cut a string into two parts by the first occurence of delimiter
+// and choose the first part (side 0) or the second part (side 1)
+// the chosen part will overwrite the original string
+
+// cut a string into two parts by delimiter
+// and choose the first part (side 0) or the second part (side 1)
+// the chosen part will overwrite the original string
+
+#include <string.h>
+#include <stdlib.h>
+
+void cut_string(char my_string[], char delimiter, int side) {
+	char part1[256] = "";
+	char part2[256] = "";
+
+	int split = 0;
+
+	int j = 0;
+	for (int i = 0; i < strlen(my_string); i++) {
+		if (my_string[i] == delimiter) {
+			if (split == 0) {
+				split = 1;
+				continue;
+			}
+		}
+
+		if (split == 0) {
+			part1[i] = my_string[i];
+		} else {
+			part2[j] = my_string[i];
+			j++;
+		}
+	}
+
+	memset(my_string, '\0', strlen(my_string));
+	if (side == 0) {
+		strcpy(my_string, part1);
+	} else {
+		strcpy(my_string, part2);
+	}
+}
+
+// this function removes all new lines and carriage returns from a string
+// you might want to write a new function that replaces '\r' and '\n'
+// with a delimiter of user's choice
+void remove_nl_and_cr(char raw_string[]) {
+  char processed_string[strlen(raw_string)];
+
+  // counter for num of elements of processed_string
+  int j = 0;
+  for (int i = 0; i<strlen(raw_string); i++) {
+    if (raw_string[i] == '\n' || raw_string[i] == '\r') {
+      continue;
+    } else {
+      processed_string[j] = raw_string[i];
+      j++;
+    }
+  }
+  processed_string[j] = '\0';
+
+  memset(raw_string, '\0', strlen(raw_string));
+  strcpy(raw_string, processed_string);
+}
+
+// remove new lines, carriage returns and spaces
+void remove_whitespace(char raw_string[]) {
+  char processed_string[strlen(raw_string)];
+
+  // counter for num of elements of processed_string
+  int j = 0;
+  for (int i = 0; i<strlen(raw_string); i++) {
+    if (raw_string[i] == '\n' || raw_string[i] == '\r' \
+			|| raw_string[i] == ' ') {
+      continue;
+    } else {
+      processed_string[j] = raw_string[i];
+      j++;
+    }
+  }
+  processed_string[j] = '\0';
+
+  memset(raw_string, '\0', strlen(raw_string));
+  strcpy(raw_string, processed_string);
+}
+
+void remove_until_delim(char raw_string[], char delimiter, int occurence) {
+	int chunk = 0;
+	int j = 0;
+	char *tmp_string = malloc(strlen(raw_string));
+	memset(tmp_string, '\0', strlen(raw_string));
+
+	for (int i = 0; i < strlen(raw_string); i++) {
+		if (raw_string[i] == delimiter) {
+			chunk++;
+		}
+		if (chunk >= occurence) {
+			tmp_string[j] = raw_string[i];
+			j++;
+		}
+	}
+	strcpy(raw_string, tmp_string);
+	free(tmp_string);
+}

src/string_handling.h

@@ -0,0 +1,8 @@
+#pragma once
+
+// cut string into two parts and choose one part
+// side is 0 or 1
+void cut_string(char my_string[], char delimiter, int side);
+void remove_nl_and_cr(char raw_string[]);
+void remove_whitespace(char raw_string[]);
+void remove_until_delim(char raw_string[], char delimiter, int occurence);