Linux copendir如何判斷文件類型

#<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) {         // 跳過(guò)當(dāng)前目錄和上級(jí)目錄的特殊條目         if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {             continue;         }          // 構(gòu)建文件的完整路徑         char file_path[PATH_MAX];         snprintf(file_path, sizeof(file_path), "%s/%s", argv[1], entry->d_name);          // 獲取文件信息         if (stat(file_path, &file_stat) == -1) {             perror("stat");             continue;         }          // 判斷文件類型         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; }