xixu-me
b792642ee2
Renamed and moved files into categorized directories for better organization. Categories include Shell-Programming, File-IO, Process-Control, and Signal-and-Piping.
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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int main() {
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DIR *dir;
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struct dirent *entry;
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int pack_fd, file_fd;
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char buffer[4096];
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ssize_t bytes_read;
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// 打开当前目录
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dir = opendir(".");
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if (dir == NULL) {
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perror("无法打开当前目录");
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return 1;
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}
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// 创建打包文件
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pack_fd = open("a.pack", O_WRONLY | O_CREAT | O_TRUNC, 0644);
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if (pack_fd == -1) {
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perror("无法创建打包文件");
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closedir(dir);
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return 1;
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}
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// 遍历目录中的所有文件
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while ((entry = readdir(dir)) != NULL) {
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// 忽略目录项和a.pack文件本身
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if (entry->d_type == DT_DIR || strcmp(entry->d_name, "a.pack") == 0) {
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continue;
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}
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printf("正在打包: %s\n", entry->d_name);
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// 写入文件名长度
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int name_len = strlen(entry->d_name);
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write(pack_fd, &name_len, sizeof(int));
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// 写入文件名
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write(pack_fd, entry->d_name, name_len);
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// 打开源文件
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file_fd = open(entry->d_name, O_RDONLY);
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if (file_fd == -1) {
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perror("无法打开源文件");
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continue;
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}
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// 获取文件大小
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struct stat st;
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fstat(file_fd, &st);
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int file_size = st.st_size;
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// 写入文件大小
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write(pack_fd, &file_size, sizeof(int));
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// 写入文件数据
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while ((bytes_read = read(file_fd, buffer, sizeof(buffer))) > 0) {
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write(pack_fd, buffer, bytes_read);
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}
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close(file_fd);
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}
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close(pack_fd);
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closedir(dir);
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printf("打包完成，所有文件已打包到 a.pack\n");
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return 0;
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}
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