Linux copendir如何判断文件类型

alt="linux copendir如何判断文件类型" />

在Linux中，copendir函数用于打开一个目录流，以便读取目录中的条目。要判断文件类型，可以使用readdir函数读取目录条目，并结合stat函数获取文件信息。以下是一个简单的示例，展示了如何使用这些函数判断文件类型：

#<span>include <stdio.h></span>#<span>include <stdlib.h></span>#<span>include <dirent.h></span>#<span>include <sys/stat.h></span>#<span>include <string.h></span>int main(<span>int argc, char *argv[])</span> {    DIR *dir;    <span>struct dirent *entry;</span>    <span>struct stat file_stat;</span>    if (argc != 2) {        fprintf(stderr, "Usage: %s <directory>n", argv[0]);        return EXIT_FAILURE;    }    dir = opendir(argv[1]);    if (dir == NULL) {        perror("opendir");        return EXIT_FAILURE;    }    while ((entry = readdir(dir)) != NULL) {        // 跳过当前目录和上级目录的特殊条目        if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {            continue;        }        // 构建文件的完整路径        char file_path[PATH_MAX];        snprintf(file_path, sizeof(file_path), "%s/%s", argv[1], entry->d_name);        // 获取文件信息        if (stat(file_path, &file_stat) == -1) {            perror("stat");            continue;        }        // 判断文件类型        if (S_ISREG(file_stat.st_mode)) {            printf("%s is a regular filen", entry->d_name);        } else if (S_ISDIR(file_stat.st_mode)) {            printf("%s is a directoryn", entry->d_name);        } else if (S_ISCHR(file_stat.st_mode)) {            printf("%s is a character devicen", entry->d_name);        } else if (S_ISBLK(file_stat.st_mode)) {            printf("%s is a block devicen", entry->d_name);        } else if (S_ISFIFO(file_stat.st_mode)) {            printf("%s is a FIFO (named pipe)n", entry->d_name);        } else if (S_ISSOCK(file_stat.st_mode)) {            printf("%s is a socketn", entry->d_name);        } else {            printf("%s is of unknown typen", entry->d_name);        }    }    closedir(dir);    return EXIT_SUCCESS;}

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