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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* data_file_mgr
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* - Edit / Preview data files
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*
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* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
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*/
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#include "bbs.h"
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#include "bbs_cmd.h"
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#include "common.h"
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#include "data_file_mgr.h"
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#include "editor.h"
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#include "log.h"
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#include "screen.h"
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#include "str_process.h"
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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enum _data_file_mgr_constant_t
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{
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DATA_FILE_MAX_LEN = 1024 * 1024 * 4, // 4MB
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};
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struct data_file_item_t
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{
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const char *const name;
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const char *const path;
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};
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typedef struct data_file_item_t DATA_FILE_ITEM;
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static const DATA_FILE_ITEM data_file_list[] = {
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{"进站欢迎", DATA_WELCOME},
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{"离站告别", DATA_GOODBYE},
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{"登陆错误", DATA_LOGIN_ERROR},
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{"活动看板", DATA_ACTIVE_BOARD},
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{"浏览帮助", DATA_READ_HELP},
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{"编辑帮助", DATA_EDITOR_HELP},
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{"敏感词表", CONF_BWF},
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{"穿梭配置", CONF_BBSNET},
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};
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static const int data_file_cnt = sizeof(data_file_list) / sizeof(DATA_FILE_ITEM);
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int data_file_mgr(void *param)
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{
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char path[FILE_PATH_LEN];
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int fd = -1;
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struct stat sb;
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void *p_data = NULL;
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size_t len_data = 0;
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EDITOR_DATA *p_editor_data = NULL;
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long len_data_new = 0;
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char *p_data_new = NULL;
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long line_total;
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long line_offsets[MAX_SPLIT_FILE_LINES];
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char buf[3] = "";
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int ch = 0;
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int previewed = 0;
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int i;
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clearscr();
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moveto(1, 1);
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prints("数据文件列表: ");
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for (i = 0; i < data_file_cnt; i++)
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{
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moveto(3 + i, 4);
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prints("%2d. %s", i + 1, data_file_list[i].name);
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}
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get_data(SCREEN_ROWS, 1, "请输入需要编辑的文件编号: ", buf, sizeof(buf), 2);
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i = atoi(buf) - 1;
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if (i < 0 || i >= data_file_cnt)
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{
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return REDRAW;
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}
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snprintf(path, sizeof(path), "%s.user", data_file_list[i].path);
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if ((fd = open(path, O_RDONLY)) < 0 &&
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(fd = open(data_file_list[i].path, O_RDONLY)) < 0)
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{
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log_error("open(%s) error (%d)\n", data_file_list[i].path, errno);
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return REDRAW;
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}
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if (fstat(fd, &sb) < 0)
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{
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log_error("fstat(fd) error (%d)\n", errno);
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goto cleanup;
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}
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len_data = (size_t)sb.st_size;
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p_data = mmap(NULL, len_data, PROT_READ, MAP_SHARED, fd, 0L);
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if (p_data == MAP_FAILED)
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{
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log_error("mmap() error (%d)\n", errno);
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goto cleanup;
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}
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if (close(fd) < 0)
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{
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log_error("close(fd) error (%d)\n", errno);
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fd = -1;
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goto cleanup;
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}
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fd = -1;
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p_editor_data = editor_data_load(p_data);
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if (p_editor_data == NULL)
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{
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log_error("editor_data_load(data) error\n");
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goto cleanup;
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}
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if (munmap(p_data, len_data) < 0)
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{
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log_error("munmap() error (%d)\n", errno);
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p_data = NULL;
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goto cleanup;
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}
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p_data = NULL;
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p_data_new = malloc(DATA_FILE_MAX_LEN);
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if (p_data_new == NULL)
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{
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log_error("malloc(content) error: OOM\n");
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goto cleanup;
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}
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for (ch = 'E'; !SYS_server_exit;)
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{
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if (ch == 'E')
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{
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editor_display(p_editor_data);
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previewed = 0;
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}
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clearscr();
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moveto(1, 1);
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if (previewed)
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{
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prints("(S)保存, (P)预览, (C)取消 or (E)再编辑? [P]: ");
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}
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else
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{
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prints("(P)预览, (C)取消 or (E)再编辑? [P]: ");
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}
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iflush();
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ch = igetch_t(BBS_max_user_idle_time);
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switch (toupper(ch))
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{
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case KEY_NULL:
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case KEY_TIMEOUT:
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goto cleanup;
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case CR:
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case 'P':
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len_data_new = editor_data_save(p_editor_data, p_data_new, DATA_FILE_MAX_LEN);
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if (len_data_new < 0)
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{
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log_error("editor_data_save() error\n");
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goto cleanup;
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}
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line_total = split_data_lines(p_data_new, SCREEN_COLS, line_offsets, MAX_SPLIT_FILE_LINES, 1, NULL);
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display_data(p_data_new, line_total, line_offsets, 1, display_file_key_handler, DATA_READ_HELP);
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previewed = 1;
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continue;
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case 'S':
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if (!previewed)
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{
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continue;
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}
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break;
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case 'C':
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clearscr();
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moveto(1, 1);
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prints("取消更改...");
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press_any_key();
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goto cleanup;
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case 'E':
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ch = 'E';
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continue;
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default: // Invalid selection
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continue;
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}
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break;
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}
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if (SYS_server_exit) // Do not save data on shutdown
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{
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goto cleanup;
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}
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if ((fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640)) < 0)
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{
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log_error("open(%s) error (%d)\n", path, errno);
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goto cleanup;
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}
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if (write(fd, p_data_new, (size_t)len_data_new) < 0)
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{
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log_error("write(len=%ld) error (%d)\n", len_data_new, errno);
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goto cleanup;
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}
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if (close(fd) < 0)
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{
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log_error("close(fd) error (%d)\n", errno);
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fd = -1;
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goto cleanup;
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}
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// Make another copy of the data file so that the user editored copy will be kept after upgrade / reinstall
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if ((fd = open(data_file_list[i].path, O_WRONLY | O_CREAT | O_TRUNC, 0640)) < 0)
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{
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log_error("open(%s) error (%d)\n", data_file_list[i].path, errno);
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goto cleanup;
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}
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if (write(fd, p_data_new, (size_t)len_data_new) < 0)
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{
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log_error("write(len=%ld) error (%d)\n", len_data_new, errno);
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goto cleanup;
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}
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if (close(fd) < 0)
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{
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log_error("close(fd) error (%d)\n", errno);
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fd = -1;
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goto cleanup;
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}
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fd = -1;
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clearscr();
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moveto(1, 1);
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prints("修改已完成，需要重新加载配置后才会生效...");
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press_any_key();
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cleanup:
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if (p_editor_data != NULL)
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{
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editor_data_cleanup(p_editor_data);
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}
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if (p_data_new != NULL)
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{
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free(p_data_new);
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}
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if (p_data != NULL && munmap(p_data, len_data) < 0)
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{
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log_error("munmap() error (%d)\n", errno);
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}
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if (fd >= 0 && close(fd) < 0)
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{
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log_error("close(fd) error (%d)\n", errno);
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}
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return REDRAW;
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}
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