multiple small changes

Makefile

@@ -1,7 +1,6 @@
 CC := gcc
 CFLAGS := -Wall -Wextra -O2 -flto=auto
-CURSES := -lncursesw -ltinfow #utf8 support
-#CURSES := -lncurses -tinfo #no utf8
+CURSES := $(shell pkg-config --libs ncursesw)
 CFLAGS_DEBUG := $(CFLAGS) -g
 CFLAGS_PROFILE := $(CFLAGS) -pg
 GDB := gdb --tui ./th

backend.c

@@ -1,14 +1,40 @@
 #include <stdlib.h>
 #include <string.h>
 
-char* concat(const char *s1, const char *s2){
-    const size_t len1 = strlen(s1);
-    const size_t len2 = strlen(s2);
-    char *result = malloc(len1 + len2 + 1);
-    memcpy(result, s1, len1);
-    memcpy(result + len1, s2, len2 + 1);
-    return result;
+#define concat(out, s1, s2, _free) { \
+	concat## _free(out, s1, s2); \
 }
+
+#define concat0(out, s1, s2) \
+	char *result = malloc(strlen(s1) + strlen(s2) + 1); \
+	memcpy(result, s1, strlen(s1)); \
+	memcpy(result + strlen(s1), s2, strlen(s2) + 1); \
+	out = result;
+	
+
+#define concat1(out, s1, s2)  \
+	char *result = malloc(strlen(s1) + strlen(s2) + 1); \
+	memcpy(result, s1, strlen(s1)); \
+	memcpy(result + strlen(s1), s2, strlen(s2) + 1); \
+	free(s1); \
+	out = result;
+
+#define concat2(out, s1, s2)  \
+	char *result = malloc(strlen(s1) + strlen(s2) + 1); \
+	memcpy(result, s1, strlen(s1)); \
+	memcpy(result + strlen(s1), s2, strlen(s2) + 1); \
+	free(s2); \
+	out = result;
+
+#define concat3(out, s1, s2)  \
+	char *result = malloc(strlen(s1) + strlen(s2) + 1); \
+	memcpy(result, s1, strlen(s1)); \
+	memcpy(result + strlen(s1), s2, strlen(s2) + 1); \
+	free(s1); \
+	free(s2); \
+	out = result;
+
+
 char* smartstrcasestr(const char *haystack, const char *needle){
 	char smart = 0;
 	char *ret;

backend.h

@@ -5,5 +5,5 @@
 #endif
 
 
-char* concat(const char *s1, const char *s2);
+/*char* concat(const char *s1, const char *s2);*/
 char* smartstrcasestr(const char *haystack, const char *needle);

config.h

@@ -1,6 +1,7 @@
 #define SETTINGS_LINE_NUMBERS 2			/* 0 is disabled, 1 is enabled, 2 is relative */
-#define SETTINGS_UEBERZUG_IMAGE_PREVIEW 1	/* 0 is disabled, 1 is enabled, 2 is with caching */
-#define SETTINGS_RELOAD_DIR_DELTA 10		/* 0 is disabled, time in seconds of how often the directory should be reload */
+#define SETTINGS_UEBERZUG_IMAGE_PREVIEW 1	/* 0 is disabled, 1 is enabled, 2 is with caching; depends on ueberzug */
+#define SETTINGS_RELOAD_DIR_DELTA 10		/* 0 is disabled, time in seconds between automatic refresh of dir contents */
+#define SETTINGS_CURSES_TIMEOUT 100		/* read: inopts(3NCURSES), blocking time between user inputs */
 
 /* {{{ */
 #ifndef CONFIG_GUARD
@@ -82,6 +83,7 @@ static const binding key_binding[] = {
 	{ "go",		jump_to_dir,		"/opt",			"jump to /opt"			},
 	{ "gt",		jump_to_dir,		"/tmp",			"jump to /tmp"			},
 	{ "gv",		jump_to_dir,		"/var",			"jump to /var"			},
+	{ "gu",		jump_to_dir,		"/usr",			"jump to /usr"			},
 
 	{ "u7",		cmd_on_selected,	"7z x",			"unzip 7z"			},
 	{ "ub",		cmd_on_selected,	"tar -xvf",		"unzip bz2"			},
@@ -109,6 +111,11 @@ static const char size_unit[] = { 'B', 'K', 'M', 'G', 'T', 'P' }; /* this define
 static const char clipboard_cmd[] = "xsel -ib --trim"; /* assembles the following shell cmd: echo "hovered_file" | clipboard_cmd */
 static const char ui_btm_text_storage_left[] = "total free";
 static const char ui_btm_current_dir_size[] = "sum of dir,";
+static const char ui_open_with_text_0[] = "open"; /*ui_open_with_text_0 \"selected_file\" ui_open_with_text_1*/
+static const char ui_open_with_text_1[] = "with:";
+static const char ui_rename_text_0[] = "rename"; /*ui_rename_text_0 \"selected_file\" ui_rename_text_1*/
+static const char ui_rename_text_1[] = "to:";
+static const char ui_delete_text[] = "delete:";
 
 /* {{{ */
 static const unsigned long binding_count = sizeof(key_binding) / sizeof(binding);
@@ -125,5 +132,10 @@ static const unsigned long mimetype_default_count;
 static const unsigned long file_extension_default_count;
 static const char size_unit[];
 static const char size_unit_count;
+static const char ui_open_with_text_0[];
+static const char ui_open_with_text_1[];
+static const char ui_rename_text_0[];
+static const char ui_rename_text_1[];
+static const char ui_delete_text[];
 #endif
 /* }}} */

dir.c

@@ -83,11 +83,7 @@ void get_dir_content(char *path, unsigned long *dir_file_count, file *dir_conten
 			dir_content[i].file_size = file->st_size;
 			dir_content[i].permissions = file->st_mode;
 
-			if (S_ISDIR(file->st_mode)) {
-				dir_content[i].file_type = FILE_TYPE_DIR;
-				dir_content[i].color_pair = COLOR_DIR;
-				dir_content[i].file_size = get_dir_size(full_path);
-			} else if (S_ISLNK(file->st_mode)) {
+			if (S_ISLNK(file->st_mode)) {
 				stat(full_path, file);
 				if (S_ISDIR(file->st_mode)) {
 					dir_content[i].file_type = FILE_TYPE_DIR | FILE_TYPE_SYMLINK;
@@ -97,6 +93,10 @@ void get_dir_content(char *path, unsigned long *dir_file_count, file *dir_conten
 					dir_content[i].file_type =  FILE_TYPE_REGULAR | FILE_TYPE_SYMLINK;
 					dir_content[i].color_pair = COLOR_SYMLINK;
 				}
+			} else if (S_ISDIR(file->st_mode)) {
+				dir_content[i].file_type = FILE_TYPE_DIR;
+				dir_content[i].color_pair = COLOR_DIR;
+				dir_content[i].file_size = get_dir_size(full_path);
 			} else if (file->st_mode & S_IXUSR) {
 				dir_content[i].file_type = FILE_TYPE_EXEC;
 				dir_content[i].color_pair = COLOR_EXEC;
@@ -315,14 +315,6 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 		} else {
 			mvwaddnstr(win, i-offset_vertical, 0, file_name, line_width);
 		}
-		if (file_name != NULL) {
-			/* sometimes NULL remains, need to do deeper analysis soon */
-			free(file_name);
-		} else {
-			printf("file_name remains NULL on %s, if this happens consistent on the same file, please inform me", dir_content[i].file_name);
-			volatile static int debug_print_dir;
-			debug_print_dir++;
-		}
 		if (dir_content[i].status & FILE_STATUS_SELECTED) {
 			wattroff(win, COLOR_PAIR(8));
 		} else {
@@ -335,9 +327,6 @@ void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file
 
 char update_selected_file(){
 	char ret = -1; /* -1 on empty or inaccessible file, 0 on unchanged file, 1 on changed file */
-	if (mid_content->file_name[0] == '\0') { /* only happens if the current path is either empty or inaccessible */
-		return ret;
-	}
 	if (selected_file_current >= mid_file_count) {
 		selected_file_current = mid_file_count-1;
 	}
@@ -352,7 +341,7 @@ char update_selected_file(){
 	return ret;
 }
 void dir_set_selected_file_current(unsigned long selected_file_current){
-	if (mid_content->file_name[0] != '\0') {
+	if (mid_content->file_name) {
 		current_dir->selected_file_current = selected_file_current;
 	}
 }
@@ -392,7 +381,9 @@ void dir_init(){
 }
 
 void recursive_delete(file current_file){
-	if (current_file.file_type & FILE_TYPE_DIR) {
+	if (S_ISLNK(current_file.permissions)) {
+		remove(current_file.file_name);
+	} else if (current_file.file_type & FILE_TYPE_DIR ) {
 		unsigned int file_modifiers_tmp = file_modifiers;
 		file_modifiers |= FILE_MODIFIERS_HIDDEN_FILES;
 		unsigned long current_file_count = get_dir_size(current_file.file_name);

file_previews.c

@@ -85,8 +85,9 @@ char* text(char *path, unsigned long *file_size){
 	}
 }
 char* generic(char *path){
-	char *cmd = concat("file ./\"", path);
-	cmd = concat(cmd, "\"");
+	char *cmd;
+	concat(cmd, "file ./\"", path, 0);
+	concat(cmd, cmd, "\"", 1);
 
 	FILE *cmd_open = popen(cmd, "r");
 	char *line = NULL;

interactions.c

@@ -41,7 +41,6 @@ extern char *input;
 extern time_t *seed;
 
 char search_buffer[INPUT_BUFFER_SIZE];
-unsigned int timeout_time = 0;
 unsigned int input_pass;
 unsigned long parsed_input_number;
 yank yank_files = { 0 };
@@ -65,72 +64,60 @@ void user_interactions() {
 	char ch;
 	unsigned long i;
 	unsigned long binding_matches = 0;
-	static char binding_pass = 0;
 
 
 	ch = getch();
 	if(ch != ERR) {
-		timeout(10); /* blocking timeout of getch() */
 		input[input_pass] = ch;
-		mvaddstr(terminal_height-1, (terminal_width/3)*2, input);
 		input_pass++;
 		if (ch == 27) { /* esc key */
-			memset(input, ' ', terminal_width);
-			mvaddstr(terminal_height-1, (terminal_width/3)*2, input);
 			memset(input, 0, INPUT_BUFFER_SIZE);
 			input_pass = 0;
-			timeout(100); /* blocking timeout of getch() */
 		}
-		binding_pass = 0;
 		status |= STATUS_UPDATE_SCREEN_0;
-	} else {
-		timeout(100);
 	}
 
 
-
 	void (*func_ptr)(int, int);
 	unsigned long number_length = 0;
 	
-	if (!binding_pass) {
-		parsed_input_number = 0;
-		while((*input >= '0') && (*input <= '9')) {
-			parsed_input_number = (parsed_input_number * 10) + (*input - '0');
-			input++;
-			number_length++;
-		}
-		input -= number_length;
-		binding_pass = 1;
+	parsed_input_number = 0;
+	while((*input >= '0') && (*input <= '9')) {
+		parsed_input_number = (parsed_input_number * 10) + (*input - '0');
+		input++;
+		number_length++;
+	}
+	input -= number_length;
 
-		char cmp_len = strlen(input);
-		if(strlen(input) < 1) {
-			cmp_len++;
-		}
-		for (i = 0; i < binding_count; i++) {
+	char cmp_len = strlen(input);
+	if(strlen(input) < 1) {
+		cmp_len = 1;
+	}
+	for (i = 0; i < binding_count; i++) {
+		if (strncmp(input + number_length, key_binding[i].key, cmp_len) == 0) {
 			if (strcmp(input + number_length, key_binding[i].key) == 0) {
-
 				func_ptr = key_binding[i].func;
 				func_ptr(parsed_input_number, i);
 
-			} else if (strncmp(input + number_length, key_binding[i].key, cmp_len) == 0) {
+				timeout(SETTINGS_CURSES_TIMEOUT); /* blocking timeout of getch() */
+			} else {
 				binding_matches++;
 				mvwprintw(stdscr, terminal_height-binding_matches-1, 0, "\t\t\t");
 				mvwprintw(stdscr, terminal_height-binding_matches-1, 0, "%s\t%s", key_binding[i].key, key_binding[i].comment);
 				status |= STATUS_INPUT_MATCH;
 			}
 		}
-		if (status & STATUS_INPUT_MATCH) {
-			attron(A_UNDERLINE);
-			mvwprintw(stdscr, terminal_height-binding_matches-2, 0, "input\tcommand\t\t");
-			attroff(A_UNDERLINE);
-			status &= ~STATUS_INPUT_MATCH;
-		} else if (number_length != strlen(input)) {
-			memset(input, 0, INPUT_BUFFER_SIZE);
-			input_pass = 0;
-			binding_pass = 0;
-			number_length = 0;
-			timeout(100); /* blocking timeout of getch() */
-		}
+	}
+	if (status & STATUS_INPUT_MATCH) {
+		attron(A_UNDERLINE);
+		mvwprintw(stdscr, terminal_height-binding_matches-2, 0, "input\tcommand\t\t");
+		attroff(A_UNDERLINE);
+		status &= ~STATUS_INPUT_MATCH;
+	} else if (number_length != strlen(input)) {
+		memset(input, 0, INPUT_BUFFER_SIZE);
+		input_pass = 0;
+		number_length = 0;
+		binding_matches = 0;
 	}
 }
 int read_string(WINDOW *win, int y, int x, char *str){
@@ -169,7 +156,6 @@ int read_string(WINDOW *win, int y, int x, char *str){
 	}
 	str[pass] = '\0';
 
-	timeout(100); 
 	curs_set(0);
 
 	return err;
@@ -195,7 +181,7 @@ void move_down(unsigned long passes){
 	selected_file_current += passes;
 
 	update_selected_file();
-	dir_set_selected_file_current(selected_file_current);
+	current_dir->selected_file_current = selected_file_current;
 
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_0);
 	pthread_mutex_unlock(&mutex_selection);
@@ -212,7 +198,8 @@ void move_up(unsigned long passes){
 	}
 
 	update_selected_file();
-	dir_set_selected_file_current(selected_file_current);
+	current_dir->selected_file_current = selected_file_current;
+	
 	
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
@@ -250,9 +237,10 @@ void move_right(){
 		if (extension != NULL) {
 			for (i = 0; i < file_extension_default_count; i++) {
 				if (strstr(extension, file_extension_default_cmd[i].file_extension)) {
-					char *cmd = concat(file_extension_default_cmd[i].command, " ./\"");
-					cmd = concat(cmd, mid_content[selected_file_current].file_name);
-					cmd = concat(cmd, "\"");
+					char *cmd;
+					concat(cmd, file_extension_default_cmd[i].command, " ./\"", 0);
+					concat(cmd, cmd, mid_content[selected_file_current].file_name, 1);
+					concat(cmd, cmd, "\"", 1);
 
 
 					if (system(cmd) == -1) {
@@ -269,10 +257,10 @@ void move_right(){
 			for (i = 0; i < mimetype_default_count; i++) {
 				if (strstr(mime, mimetype_default_cmd[i].mimetype)) {
 
-					char *cmd = concat(mimetype_default_cmd[i].command, " ./\"");
-					cmd = concat(cmd, mid_content[selected_file_current].file_name);
-					cmd = concat(cmd, "\"");
-				
+					char *cmd;
+					concat(cmd, mimetype_default_cmd[i].command, " ./\"", 0);
+					concat(cmd, cmd, mid_content[selected_file_current].file_name, 1);
+					concat(cmd, cmd, "\"", 1);
 
 
 					if (system(cmd) == -1) {
@@ -307,7 +295,7 @@ void jump_bottom(){
 	pthread_mutex_lock(&mutex_selection);
 	selected_file_current = 0 - 1;
 	update_selected_file();
-	dir_set_selected_file_current(selected_file_current);
+	current_dir->selected_file_current = selected_file_current;
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
 }
@@ -315,7 +303,7 @@ void jump_top(){
 	pthread_mutex_lock(&mutex_selection);
 	selected_file_current = 0;
 	update_selected_file();
-	dir_set_selected_file_current(selected_file_current);
+	current_dir->selected_file_current = selected_file_current;
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
 }
@@ -329,8 +317,11 @@ void open_with(){
 	mvwin(win_b, terminal_height-6, 0);
 	wresize(win_b, BTM_WINDOW_HEIGHT_ON_STR_INTERACTION, terminal_width/3); /*the div3 just looks cool*/
 
-	btm_buffer = concat("open \"", mid_content[selected_file_current].file_name);
-	btm_buffer = concat(btm_buffer, "\" with:");
+	concat(btm_buffer, ui_open_with_text_0, " \"", 0);
+	concat(btm_buffer, btm_buffer, mid_content[selected_file_current].file_name, 1);
+	concat(btm_buffer, btm_buffer, "\" ", 1);
+	concat(btm_buffer, btm_buffer, ui_open_with_text_1, 1);
+
 
 	window_btm(win_b, 1);
 
@@ -342,17 +333,20 @@ void open_with(){
 
 	
 	if (err == 0) {
-		char *cmd = concat(str, " ./\"");
-		cmd = concat(cmd, mid_content[selected_file_current].file_name);
-		cmd = concat(cmd, "\"");
+		char *cmd;
+		concat(cmd, str, " ./\"", 0);
+		concat(cmd, cmd, mid_content[selected_file_current].file_name, 1);
+		concat(cmd, cmd, "\"", 1);
 
 		#if SETTINGS_UEBERZUG_IMAGE_PREVIEW != 0
 		images_clear();
 		#endif
 
+		endwin();
 		if (system(cmd) == -1) {
 			FAIL("open_with", "creating subcommand failed unhandled");
 		}
+		initscr();
 	}
 
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);
@@ -372,8 +366,10 @@ void rename_hovered(){
 	mvwin(win_b, terminal_height-6, 0);
 	wresize(win_b, BTM_WINDOW_HEIGHT_ON_STR_INTERACTION, terminal_width/3); /*the div3 just looks cool*/
 
-	btm_buffer = concat("rename \"", mid_content[selected_file_current].file_name);
-	btm_buffer = concat(btm_buffer, "\" to:");
+	concat(btm_buffer, ui_rename_text_0, " \"", 0);
+	concat(btm_buffer, btm_buffer, mid_content[selected_file_current].file_name, 1);
+	concat(btm_buffer, btm_buffer, "\" ", 1);
+	concat(btm_buffer, btm_buffer, ui_rename_text_1, 1);
 
 	window_btm(win_b, 1);
 
@@ -384,10 +380,11 @@ void rename_hovered(){
 
 	
 	if (!err) {
-		char *cmd = concat("mv ./\"", mid_content[selected_file_current].file_name);
-		cmd = concat(cmd, "\" ./\"");
-		cmd = concat(cmd, str);
-		cmd = concat(cmd, "\"");
+		char *cmd;
+		concat(cmd, "mv ./\"", mid_content[selected_file_current].file_name, 0);
+		concat(cmd, cmd, "\" ./\"", 1);
+		concat(cmd, cmd, str, 1);
+		concat(cmd, cmd, "\"", 1);
 		 
 		if (system(cmd) == -1) {
 			FAIL("rename_hovered", "mv or creating subcommand failed"); 
@@ -411,12 +408,12 @@ void delete(){
 
 	unsigned int i = 0;
 	unsigned int hits = 0;
-	char *file_str = " ";
+	char *file_str = "";
 	for (i = 0; i < mid_file_count; i++) {
 		if (mid_content[i].status & FILE_STATUS_SELECTED) {
-			file_str = concat(file_str, "\"");
-			file_str = concat(file_str, mid_content[i].file_name);
-			file_str = concat(file_str, "\" ");
+			concat(file_str, file_str, "\"", 0);
+			concat(file_str, file_str, mid_content[i].file_name, 1);
+			concat(file_str, file_str, "\" ", 1);
 			hits++;
 		}
 	}
@@ -428,13 +425,13 @@ void delete(){
 		btm_buffer = malloc(BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * (terminal_width/3));
 		memset(btm_buffer, ' ', (BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * (terminal_width/3)));
 
-		memcpy(btm_buffer, "delete: ",strlen("delete: "));
+		memcpy(btm_buffer, ui_delete_text ,strlen(ui_delete_text));
 		if (hits) {
-			memcpy(btm_buffer + strlen("delete: "), file_str, strlen(file_str));
+			memcpy(btm_buffer + strlen(ui_delete_text)+1, file_str, strlen(file_str));
 		} else {
-			btm_buffer[strlen("delete: ")] = '"';
-			memcpy(btm_buffer + strlen("delete: ") + sizeof(char), mid_content[selected_file_current].file_name, strlen(mid_content[selected_file_current].file_name)-1);
-			btm_buffer[strlen("delete: ") + sizeof(char) + strlen(mid_content[selected_file_current].file_name)] = '"';
+			btm_buffer[strlen(ui_delete_text)+1] = '"';
+			memcpy(btm_buffer + strlen(ui_delete_text) +1 + sizeof(char), mid_content[selected_file_current].file_name, strlen(mid_content[selected_file_current].file_name));
+			btm_buffer[strlen(ui_delete_text)+1 + sizeof(char) + strlen(mid_content[selected_file_current].file_name)] = '"';
 		}
 
 		memcpy(btm_buffer + (BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * (terminal_width/3) - (terminal_width/3)) , "(y/N)", strlen("(y/N)"));
@@ -446,11 +443,11 @@ void delete(){
 		btm_buffer = malloc(BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * terminal_width);
 		memset(btm_buffer, ' ', BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * terminal_width);
 
-		memcpy(btm_buffer, "delete: ",strlen("delete: "));
+		memcpy(btm_buffer, ui_delete_text ,strlen(ui_delete_text));
 
 		/*this horrendous check tries to copy everything until the last line, while keeping said last line unwritten*/
 		/*lets hope im never gonna need to format something like this ever again*/
-		memcpy(btm_buffer + strlen("delete: "), file_str, 
+		memcpy(btm_buffer + strlen(ui_delete_text)+1, file_str, 
 			(strlen(file_str) > ((BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * terminal_width) - terminal_width) ?
 				((BTM_WINDOW_HEIGHT_ON_STR_INTERACTION * terminal_width) - terminal_width) : 
 				strlen(file_str)));
@@ -473,9 +470,7 @@ void delete(){
 					recursive_delete(mid_content[i]);
 				}
 			}
-			free(btm_buffer);
 		} else {
-			free(btm_buffer);
 			if (mid_content[selected_file_current].file_type & FILE_TYPE_DIR) {
 				recursive_delete(mid_content[selected_file_current]);
 			}
@@ -489,7 +484,6 @@ void delete(){
 		free(file_str);
 	}
 
-	timeout(10); 
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);
 
 	pthread_mutex_unlock(&mutex_btm);
@@ -514,7 +508,7 @@ void makedir(){
 	int err = read_string(win_b, BTM_WINDOW_HEIGHT_ON_STR_INTERACTION - 1, 0, str);
 
 	if (!err) {
-		btm_buffer = concat(btm_buffer, str);
+		concat(btm_buffer, btm_buffer, str, 0);
 		mode_t mask = umask(0);
 		mkdir(str, 0755); /*magic number from default permissions as created by mkdir*/
 		umask(mask);
@@ -544,7 +538,7 @@ void makefile(){
 	int err = read_string(win_b, BTM_WINDOW_HEIGHT_ON_STR_INTERACTION - 1, 0, str);
 
 	if (!err) {
-		btm_buffer = concat(btm_buffer, str);
+		concat(btm_buffer, btm_buffer, str, 0);
 		FILE *fp;
 		fp = fopen(str, "w");
 		fclose(fp);
@@ -607,7 +601,7 @@ void jump_to_dir(unsigned long passes, int index){
 		env_str[env_len-1] = '\0';
 		env_parsed = getenv(env_str);
 		if (env_parsed) {
-			path = concat(env_parsed, (char*)key_binding[index].black_magic + env_len);
+			concat(path, env_parsed, (char*)key_binding[index].black_magic + env_len, 0);
 		} else {
 			path = malloc(strlen((char*)key_binding[index].black_magic));
 			memcpy(path, (char*)key_binding[index].black_magic, strlen((char*)key_binding[index].black_magic)+1);
@@ -653,29 +647,30 @@ void cmd_on_selected(unsigned long passes, int index){
 	pthread_mutex_lock(&mutex_btm);
 
 	char *btm_buffer_tmp = btm_buffer;
+	btm_buffer = "";
 	unsigned int i = 0;
 	unsigned int hits = 0;
-	char *file_str = " ";
+	char *file_str = "";
 	for (i = 0; i < mid_file_count; i++) {
 		if (mid_content[i].status & FILE_STATUS_SELECTED) {
-			file_str = concat(file_str, "\"");
-			file_str = concat(file_str, mid_content[i].file_name);
-			file_str = concat(file_str, "\" ");
+			concat(file_str, file_str, "\"", 0);
+			concat(file_str, file_str, mid_content[i].file_name, 1);
+			concat(file_str, file_str, "\" ", 1);
 			hits++;
 		}
 	}
 
 	if (hits) {
-		btm_buffer = concat(key_binding[index].black_magic, file_str);
+		concat(btm_buffer, key_binding[index].black_magic, file_str, 2);
 	} else {
-		btm_buffer = concat(key_binding[index].black_magic, "\"");
-		btm_buffer = concat(btm_buffer, mid_content[selected_file_current].file_name);
-		btm_buffer = concat(btm_buffer, "\"");
+		concat(btm_buffer, key_binding[index].black_magic, "\"", 0);
+		concat(btm_buffer, btm_buffer, mid_content[selected_file_current].file_name, 1);
+		concat(btm_buffer, btm_buffer, "\"", 1);
 	}
 
-	btm_buffer = concat(btm_buffer, "?");
-	btm_buffer = concat(btm_buffer, "\n\n");
-	btm_buffer = concat(btm_buffer, "(y/N)");
+	concat(btm_buffer, btm_buffer, "?", 1);
+	concat(btm_buffer, btm_buffer, "\n\n", 1);
+	concat(btm_buffer, btm_buffer, "(y/N)", 1);
 
 	werase(win_b);
 	mvwin(win_b, terminal_height-6, 0);
@@ -691,26 +686,24 @@ void cmd_on_selected(unsigned long passes, int index){
 		/* the second loop is used to add "./", wich is not being printed" */
 		char *cmd = malloc(sizeof(char));
 		/* TODO(2025-07-06T07:23:05) IMPORTANT: this really fucks up when the file has a quotation mark in its name */
+		endwin();
 		if (hits) {
 			for (i = 0; i < mid_file_count; i++) {
 				if (mid_content[i].status & FILE_STATUS_SELECTED) {
 					free(cmd);
-					cmd = concat((char*)key_binding[index].black_magic, " \"");
-					cmd = concat(cmd, mid_content[i].file_name);
-					cmd = concat(cmd, "\"");
+					concat(cmd, (char*)key_binding[index].black_magic, " \"", 0);
+					concat(cmd, cmd, mid_content[i].file_name, 1);
+					concat(cmd, cmd, "\"", 1);
 					if (system(cmd) != 0) {
 						/*do nothing*/
 					}
 				}
 			}
-			free(btm_buffer);
-			memcpy(btm_buffer, "completed: ", strlen("completed: "));
 		} else {
-			free(btm_buffer);
 			free(cmd);
-			cmd = concat((char*)key_binding[index].black_magic, " \"");
-			cmd = concat(cmd, mid_content[selected_file_current].file_name);
-			cmd = concat(cmd, "\"");
+			concat(cmd, (char*)key_binding[index].black_magic, " \"", 0);
+			concat(cmd, cmd, mid_content[selected_file_current].file_name, 1);
+			concat(cmd, cmd, "\"", 1);
 			if (system(cmd) != 0) {
 				/*do nothing*/
 			}
@@ -719,20 +712,14 @@ void cmd_on_selected(unsigned long passes, int index){
 		}
 		/*system(cmd);*/
 		free(cmd);
+		initscr();
 
-	} else {
-		free(btm_buffer);
-		memcpy(btm_buffer, "cancled deletion", strlen("cancled deletion"));
 	}
 	free(btm_buffer);
 	btm_buffer = btm_buffer_tmp;
 
-	timeout(10); 
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);
 
-	if (hits) {
-		free(file_str);
-	}
 	pthread_mutex_unlock(&mutex_btm);
 }
 void yank_text(unsigned long passes, int index){
@@ -740,16 +727,16 @@ void yank_text(unsigned long passes, int index){
 	char *cmd;
 	if (strncmp((char*)key_binding[index].black_magic, "path", 4) == 0) {
 		char *path=getcwd(NULL, 0);
-		cmd = concat("echo \"", path);
-		cmd = concat(cmd, "/");
-		cmd = concat(cmd, mid_content[selected_file_current].file_name);
-		cmd = concat(cmd, "\" | ");
-		cmd = concat(cmd, clipboard_cmd);
+		concat(cmd, "echo \"", path, 0);
+		concat(cmd, cmd, "/", 1);
+		concat(cmd, cmd, mid_content[selected_file_current].file_name, 1);
+		concat(cmd, cmd, "\" | ", 1);
+		concat(cmd, cmd, clipboard_cmd, 1);
 		free(path);
 	} else {
-		cmd = concat("echo \"", mid_content[selected_file_current].file_name);
-		cmd = concat(cmd, "\" | ");
-		cmd = concat(cmd, clipboard_cmd);
+		concat(cmd, "echo \"", mid_content[selected_file_current].file_name, 0);
+		concat(cmd, cmd, "\" | ", 1);
+		concat(cmd, cmd, clipboard_cmd, 1);
 	}
 	if (system(cmd) == -1) {
 		/*do nothing*/
@@ -781,13 +768,13 @@ void yank_file(unsigned long passes, int index){
 		yank_files.count = 1;
 		yank_files.list = (char**)malloc(yank_files.count * sizeof(char*));
 		*yank_files.list = malloc(strlen(mid_content[selected_file_current].file_name)+1);
-		memcpy(*yank_files.list, mid_content[selected_file_current].file_name, strlen(mid_content[selected_file_current].file_name));
+		memcpy(*yank_files.list, mid_content[selected_file_current].file_name, strlen(mid_content[selected_file_current].file_name)+1);
 	} else {
 		yank_files.list = malloc(yank_files.count * sizeof(char*));
 		for (i = 0; i < mid_file_count; i++) {
 			if (mid_content[i].status & FILE_STATUS_SELECTED) {
 				*yank_files.list = malloc(strlen(mid_content[i].file_name)+1);
-				memcpy(*yank_files.list, mid_content[i].file_name, strlen(mid_content[i].file_name));
+				memcpy(*yank_files.list, mid_content[i].file_name, strlen(mid_content[i].file_name)+1);
 				yank_files.list += 1;
 			}
 		}
@@ -808,15 +795,15 @@ void paste(){
 		/*TODO(2025-08-14T22:10:44) escape path*/
 		char *cmd;
 		if (yank_files.status & YANK_COPY) {
-			cmd = concat("false | cp -riv ", yank_files.path);
+			concat(cmd, "false | cp -ri ", yank_files.path, 0);
 		} else {
-			cmd = concat("mv ", yank_files.path);
+			concat(cmd, "mv ", yank_files.path, 0);
 		}
-		cmd = concat(cmd, "/");
-		cmd = concat(cmd, *yank_files.list);
-		cmd = concat(cmd, " ./");
-		cmd = concat(cmd, *yank_files.list);
-		cmd = concat(cmd, " 2>&1");
+		concat(cmd, cmd, "/", 1);
+		concat(cmd, cmd, *yank_files.list, 1);
+		concat(cmd, cmd, " ./", 1);
+		concat(cmd, cmd, *yank_files.list, 1);
+		concat(cmd, cmd, " 2>&1", 1);
 		char *line = malloc(INPUT_BUFFER_SIZE);
 		FILE *cmd_open;
 		while (1) {
@@ -826,19 +813,22 @@ void paste(){
 			}
 			if (strstr(line, "are the same file")) {
 				cmd[strlen(cmd)-strlen(" 2>&1")] = '\0';
-				cmd = concat(cmd, "_");
-				cmd = concat(cmd, " 2>&1");
+				concat(cmd, cmd, "_", 1);
+				concat(cmd, cmd, " 2>&1", 1);
 			} else if ((strstr(line, "overwrite"))) { 
 				cmd[strlen(cmd)-strlen(" 2>&1")] = '\0';
-				cmd = concat(cmd, "_");
-				cmd = concat(cmd, " 2>&1");
+				concat(cmd, cmd, "_", 1);
+				concat(cmd, cmd, " 2>&1", 1);
 			} else if ((strstr(line, "No such file or directory"))) { 
 				pclose(cmd_open);
 				break;
-			} else if (pclose(cmd_open) == 0) {
+			} else if ((strstr(line, "into itself"))) { 
+				pclose(cmd_open);
+				break;
+			}
+			if (pclose(cmd_open) == 0) {
 				break;
 			}
-			pclose(cmd_open);
 		}
 
 		free(cmd);
@@ -905,10 +895,9 @@ void search(){
 	}
 	search_buffer[pass] = '\0';
 
-	timeout(10); 
 	curs_set(0);
 
-	dir_set_selected_file_current(selected_file_current);
+	current_dir->selected_file_current = selected_file_current;
 
 	update_selected_file();
 

main.c

@@ -7,6 +7,7 @@
 #include <time.h>
 
 #include "defines.h"
+#include "config.h"
 #include "threading.h"
 #include "window.c"
 #include "colors.h"
@@ -21,6 +22,7 @@ unsigned int settings;
 unsigned int file_modifiers;
 unsigned int status = (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY); 
 char *start_path;
+char *global_path;
 time_t *seed;
 
 WINDOW *win_t;
@@ -35,7 +37,6 @@ char *terminal_width_empty_line; /* used in user_interactions */
 void render_pass();
 void init();
 
-
 int main(){
 
 	init();
@@ -58,7 +59,6 @@ int main(){
 	pthread_t thread_m;
 	pthread_t thread_r;
 
-	char threading = 0;
 	terminal_width_empty_line = malloc(terminal_width);
 	#if SETTINGS_RELOAD_DIR_DELTA != 0
 	time_t t;
@@ -71,7 +71,17 @@ int main(){
 	pthread_create(&thread_m, NULL, thread_mid, &status); /*current_content slash win_m*/
 	pthread_create(&thread_r, NULL, thread_rgt, &status); /*child_content slash win_r*/
 	pthread_create(&thread_b, NULL, thread_btm, &status); /*bottom bar*/
-		
+
+
+	/* running through all once manually in order to get an as fast as possible first render on the screen */
+	pthread_cond_signal(&cond_top);
+	pthread_cond_signal(&cond_mid);
+	pthread_cond_signal(&cond_lft);
+	user_interactions();
+	render_pass();
+	timeout(SETTINGS_CURSES_TIMEOUT);
+
+
 	while(!(status & STATUS_QUIT_PROGRAM)){
 		getmaxyx(stdscr, terminal_height, terminal_width);
 
@@ -80,21 +90,18 @@ int main(){
 			temp_width = terminal_width;
 			temp_heigth = terminal_height;
 		}
-		if (threading) {
-			status &= ~(STATUS_RELOAD_DIRECTORY | STATUS_DELTA_TIME);
-			threading = 0;
-		} 
 		if (status & STATUS_RUN_BACKEND) {
+			global_path = getcwd(NULL, 0);
 			pthread_cond_signal(&cond_top);
 			pthread_cond_signal(&cond_mid);
 			pthread_cond_signal(&cond_lft);
 			status &= ~(STATUS_RUN_BACKEND);
 			status |= STATUS_UPDATE_SCREEN_0;
-			threading = 1;
+		} else {
+			status &= ~(STATUS_RELOAD_DIRECTORY | STATUS_DELTA_TIME);
 		}
 		user_interactions();
 
-
 		render_pass();
 
 		#if SETTINGS_RELOAD_DIR_DELTA != 0
@@ -112,16 +119,6 @@ int main(){
 	threading_free();
 	free(start_path);
 
-	/*
-	if (threading) {
-		pthread_join(thread_l, NULL);
-		pthread_join(thread_r, NULL);
-		pthread_join(thread_m, NULL);
-		pthread_join(thread_t, NULL);
-		pthread_join(thread_b, NULL);
-	}
-	*/
-
 	delwin(win_l);
 	delwin(win_m);
 	delwin(win_r);
@@ -143,9 +140,6 @@ void render_pass(){
 			status &= ~STATUS_UPDATE_SCREEN_RELOAD_FULL;
 		}
 
-		/*TODO: check if deallocation of window and reallocation is faster than this or not */
-
-
 		wresize(win_t, 1, terminal_width);
 		wresize(win_l, terminal_height-2, terminal_width/8);
 		wresize(win_m, terminal_height-2, (terminal_width/2)-(terminal_width/8));
@@ -183,7 +177,10 @@ void init() {
 	setlocale(LC_ALL, "");
 	initscr(); /* start ncurses */
 	noecho(); /* hide keyboard input */
-	timeout(0); /* blocking timeout of getch() */
+	timeout(10); /* blocking timeout of getch(), using 10 rather than SETTINGS_CURSES_TIMEOUT to cause a faster first render
+			regardless on SETTINGS_CURSES_TIMEOUT, 10 was taken arbitrary.
+			if the blocking is too low, the first render happens delayed, however even this delay causes a quicker than 
+			(compute time of threads) + timeout */
 	curs_set(0);
 
 	/*file_modifiers = (FILE_MODIFIERS_HIDDEN_FILES | FILE_MODIFIERS_SORT_BITMASK);*/
@@ -202,6 +199,7 @@ void init() {
 	#endif
 
 	ESCDELAY = 10;
+	global_path = getcwd(NULL, 0);
 	char *start_path = getcwd(NULL, 0);
 	setenv("START_PATH", start_path, 0);
 	free(start_path);

threading.c

@@ -47,6 +47,7 @@ volatile unsigned long selected_file_current = 0;
 volatile unsigned long selected_file_last = 0;
 extern unsigned int terminal_width;
 extern unsigned int status;
+extern char *global_path;
 
 unsigned int btm_status;
 
@@ -58,48 +59,49 @@ void *thread_mid(){
 		pthread_cond_wait(&cond_mid, &mutex_mid);
 		unsigned int local_status = status;
 
-		char *path;
-		if((path=getcwd(NULL, 0)) == NULL) {
+		if (global_path == NULL) {
 			mid_content = malloc(sizeof(file));
 			mid_content->file_name = "cannot open directory";
 			mid_file_count = 1;
-		} else {
+			pthread_mutex_unlock(&mutex_mid);
+			continue;
+		} 
+		char *path = malloc(strlen(global_path)+1);
+		memcpy(path, global_path, strlen(global_path)+1);
 
-
-			if (local_status & STATUS_RELOAD_DIRECTORY) {
-				unsigned long i = 0;
-				for (i = 0; i < mid_file_count; i++) {
-					free(mid_content[i].file_name);
-				}
-				free(mid_content);
-				mid_file_count = get_dir_size(path);
-				if (mid_file_count != 0) {
-					mid_content = malloc(mid_file_count * sizeof(file));
-					memset(mid_content, '\0', mid_file_count * sizeof(file));
-					get_dir_content(path, &mid_file_count, mid_content);
-				} else {
-					selected_file_current = 0;
-					mid_content = malloc(sizeof(file));
-					mid_content->file_type = 0;
-					mid_content->file_size = 0;
-					mid_content->permissions = 0;
-					mid_content->color_pair = 0;
-					mid_content->file_name = malloc(sizeof(char));
-					mid_content->file_name[0] = '\0';
-
-					mid_file_count = 0;
-
-				}
-				pthread_mutex_lock(&mutex_selection);
-				update_selected_file();
-				pthread_mutex_unlock(&mutex_selection);
+		if (local_status & STATUS_RELOAD_DIRECTORY) {
+			unsigned long i = 0;
+			for (i = 0; i < mid_file_count; i++) {
+				free(mid_content[i].file_name);
 			}
+			free(mid_content);
+			mid_file_count = get_dir_size(path);
+			if (mid_file_count != 0) {
+				mid_content = malloc(mid_file_count * sizeof(file));
+				memset(mid_content, '\0', mid_file_count * sizeof(file));
+				get_dir_content(path, &mid_file_count, mid_content);
+			} else {
+				selected_file_current = 0;
+				mid_content = malloc(sizeof(file));
+				mid_content->file_type = 0;
+				mid_content->file_size = 0;
+				mid_content->permissions = 0;
+				mid_content->color_pair = 0;
+				mid_content->file_name = malloc(sizeof(char));
+				mid_content->file_name[0] = '\0';
 
-			btm_status = local_status;
-			pthread_cond_signal(&cond_rgt);
-			pthread_cond_signal(&cond_btm);
+				mid_file_count = 0;
 
+			}
+			pthread_mutex_lock(&mutex_selection);
+			update_selected_file();
+			pthread_mutex_unlock(&mutex_selection);
 		}
+
+		btm_status = local_status;
+		pthread_cond_signal(&cond_rgt);
+		pthread_cond_signal(&cond_btm);
+
 		free(path);
 		pthread_mutex_unlock(&mutex_mid);
 	}
@@ -112,13 +114,18 @@ void *thread_lft(){
 		pthread_cond_wait(&cond_lft, &mutex_lft);
 		unsigned int local_status = status;
 
-		char *path;
-		if((path=getcwd(NULL, 0)) == NULL) {
+		if (global_path == NULL) {
 			lft_content = malloc(sizeof(file));
 			lft_content[0].file_name = "cannot open directory";
 			lft_file_count = 1;
-		} else {
+			pthread_mutex_unlock(&mutex_lft);
+			continue;
+		} 
+		char *path = malloc(strlen(global_path)+1);
+		memcpy(path, global_path, strlen(global_path)+1);
 
+		if (strcmp(path, "/") != 0) {
+			path[strrchr(path, '/')-path+1] = '\0';
 			path[strrchr(path, '/')-path] = '\0';
 			path[0] = '/';
 
@@ -129,8 +136,11 @@ void *thread_lft(){
 				memset(lft_content, '\0', lft_file_count * sizeof(file));
 				get_dir_content(path, &lft_file_count, lft_content);
 			}
-
+		} else {
+			lft_file_count = 0;
 		}
+
+
 		free(path);
 		pthread_mutex_unlock(&mutex_lft);
 	}
@@ -230,18 +240,17 @@ void *thread_top(){
 
 		free(top_buffer);
 
-		char *path;
-		if((path=getcwd(NULL, 0)) == NULL) {
+		if(global_path == NULL) {
 			top_buffer = malloc(sizeof("cannot open directory"));
 			top_width = sizeof("cannot open directory");
 			top_buffer = "cannot open directory";
-		} else {
-			top_buffer = malloc(strlen(path)+1);
-			memcpy(top_buffer, path, strlen(path)+1);
-			top_width = strlen(top_buffer);
-		}
+			pthread_mutex_unlock(&mutex_top);
+			continue;
+		} 
+		top_buffer = malloc(strlen(global_path)+1);
+		memcpy(top_buffer, global_path, strlen(global_path)+1);
+		top_width = strlen(top_buffer);
 
-		free(path);
 		pthread_mutex_unlock(&mutex_top);
 	}
 	pthread_exit(0);
@@ -271,14 +280,6 @@ void *thread_btm(){
 			pthread_mutex_unlock(&mutex_mid);
 
 
-			if (path != NULL) {
-				/* sometimes NULL remains, need to do deeper analysis soon */
-				free(path);
-				path = NULL;
-			} else {
-				volatile static int debug_thread_btm;
-				debug_thread_btm++;
-			}
 			free(ui_btm_right_block);
 
 			path = getcwd(NULL, 0);
@@ -345,7 +346,8 @@ void *thread_btm(){
 
 		memcpy(btm_buffer + buffer_width - ui_btm_right_block_size, ui_btm_right_block, ui_btm_right_block_size);
 
-		btm_buffer[0] = (S_ISDIR(mid_content[selected_file_current].permissions))  ? 'd' : '-';
+		btm_buffer[0] = (S_ISLNK(mid_content[selected_file_current].permissions)) ? 'l': 
+				(S_ISDIR(mid_content[selected_file_current].permissions)  ? 'd': '-');
 		btm_buffer[1] = (mid_content[selected_file_current].permissions & S_IRUSR) ? 'r' : '-';
 		btm_buffer[2] = (mid_content[selected_file_current].permissions & S_IWUSR) ? 'w' : '-';
 		btm_buffer[3] = (mid_content[selected_file_current].permissions & S_IXUSR) ? 'x' : '-';