--- lbbs/src/screen.c	2025/05/28 01:04:24	1.70
+++ lbbs/src/screen.c	2025/05/29 02:45:23	1.77
@@ -22,7 +22,6 @@
 #include "io.h"
 #include "file_loader.h"
 #include <fcntl.h>
-#include <string.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -32,10 +31,13 @@
 #include <sys/param.h>
 #include <sys/shm.h>
 
+#define _POSIX_C_SOURCE 200809L
+#include <string.h>
+
 #define ACTIVE_BOARD_HEIGHT 8
 
 #define STR_TOP_LEFT_MAX_LEN 40
-#define STR_TOP_CENTER_MAX_LEN 20
+#define STR_TOP_MIDDLE_MAX_LEN 20
 #define STR_TOP_RIGHT_MAX_LEN 20
 
 void moveto(int row, int col)
@@ -369,6 +371,7 @@ int display_file_ex(const char *filename
 					max_lines = SCREEN_ROWS - 1;
 					clrline(begin_line, SCREEN_ROWS);
 					break;
+				case KEY_ESC:
 				case KEY_LEFT:
 				case 'q':
 				case 'Q':
@@ -431,36 +434,36 @@ cleanup:
 	return ch;
 }
 
-int show_top(const char *str_left, const char *str_center)
+int show_top(const char *str_left, const char *str_middle, const char *str_right)
 {
-	int truncate;
+	char str_left_f[STR_TOP_LEFT_MAX_LEN + 1];
+	char str_middle_f[STR_TOP_MIDDLE_MAX_LEN + 1];
+	char str_right_f[STR_TOP_RIGHT_MAX_LEN + 1];
 	int str_left_len;
-	int str_center_len;
+	int str_middle_len;
 	int str_right_len;
+	int eol;
 	int len;
 
-	len = split_line(str_left, STR_TOP_LEFT_MAX_LEN, &truncate, &str_left_len);
-	if (truncate)
-	{
-		log_error("Left string is truncated at len = %d\n", len);
-	}
-
-	len = split_line(str_center, STR_TOP_CENTER_MAX_LEN, &truncate, &str_center_len);
-	if (truncate)
-	{
-		log_error("Center string is truncated at len = %d\n", len);
-	}
-
-	len = split_line(BBS_current_section_name, STR_TOP_RIGHT_MAX_LEN, &truncate, &str_right_len);
-	if (truncate)
-	{
-		log_error("Section name is truncated at len = %d\n", len);
-	}
+	strncpy(str_left_f, str_left, sizeof(str_left_f) - 1);
+	str_left_f[sizeof(str_left_f) - 1] = '\0';
+	len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN, &eol, &str_left_len);
+	str_left_f[len] = '\0';
+
+	strncpy(str_middle_f, str_middle, sizeof(str_middle_f) - 1);
+	str_middle_f[sizeof(str_middle_f) - 1] = '\0';
+	len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN, &eol, &str_middle_len);
+	str_middle_f[len] = '\0';
+
+	strncpy(str_right_f, str_right, sizeof(str_right_f) - 1);
+	str_right_f[sizeof(str_right_f) - 1] = '\0';
+	len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN, &eol, &str_right_len);
+	str_right_f[len] = '\0';
 
 	moveto(1, 0);
 	clrtoeol();
-	prints("\033[1;44;33m%s\033[37m%*s%*s\033[33m 讨论区 [%s]\033[m",
-		   str_left, 44 - str_left_len, str_center, 34 - str_center_len - str_right_len, "", BBS_current_section_name);
+	prints("\033[1;44;33m%s\033[37m%*s\033[33m%*s\033[m",
+		   str_left_f, 44 - str_left_len, str_middle_f, 36, str_right_f);
 
 	return 0;
 }
@@ -470,21 +473,21 @@ int show_bottom(const char *msg)
 	char str_time[LINE_BUFFER_LEN];
 	time_t time_online;
 	struct tm *tm_online;
-	char msg_f[21];
-	int truncate;
+	char msg_f[LINE_BUFFER_LEN];
+	int eol;
 	int msg_len;
 	int len;
 	int len_username;
 
 	get_time_str(str_time, sizeof(str_time));
 
-	strncpy(msg_f, msg, sizeof(msg_f) - 1);
-	msg_f[sizeof(msg_f) - 1] = '\0';
-
-	len = split_line(msg_f, 20, &truncate, &msg_len);
-	if (truncate)
-	{
-		log_error("Status string is truncated\n");
+	msg_f[0] = '\0';
+	msg_len = 0;
+	if (msg != NULL)
+	{
+		strncpy(msg_f, msg, sizeof(msg_f) - 1);
+		msg_f[sizeof(msg_f) - 1] = '\0';
+		len = split_line(msg_f, 23, &eol, &msg_len);
 		msg_f[len] = '\0';
 	}
 
@@ -495,9 +498,9 @@ int show_bottom(const char *msg)
 
 	moveto(SCREEN_ROWS, 0);
 	clrtoeol();
-	prints("\033[1;44;33m[\033[36m%s\033[33m]%*s%*s帐号[\033[36m%s\033[33m]"
+	prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m帐号[\033[36m%s\033[33m]"
 		   "[\033[36m%1d\033[33m天\033[36m%2d\033[33m时\033[36m%2d\033[33m分]\033[m",
-		   str_time, 21, msg_f, 9 - len_username, "", BBS_username,
+		   str_time, msg_f, 35 - msg_len - len_username, "", BBS_username,
 		   tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min);
 
 	return 0;