头文件 #include <dirent.h>
函数一：
打开指定目录name，返回执行该目录流的指针。
函数二：
其中结构体dirent为：
函数三：
示例 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 #include <stdio.h> #include <unistd.h> #include <dirent.h> #include <string.h> void traverse(const char* dirPath) { DIR* dir; struct dirent * ptr; if((dir = opendir(dirPath)) == NULL) return; while((ptr = readdir(dir)) != NULL) { if(strcmp(ptr->d_name,".")==0 || strcmp(ptr->d_name,"..")==0) ///current dir OR parrent dir continue; if(ptr->d_type == 4) //目录 { char path[256] = {0}; strncpy(path, dirPath, 256); strcat(path, ptr->d_name); printf("目录：%s\n", path); } else if(ptr->d_type == 8) { char path[256] = {0}; strncpy(path, dirPath, 256); strcat(path, ptr->d_name); printf("文件：%s\n", path); } else if (ptr->d_type == 10) { char path[256] = {0}; strncpy(path, dirPath, 256); strcat(path, ptr->d_name); //获取链接的目标 char dst[1024] = {0}; readlink(path, dst, 1024); printf("链接：%s --> %s\n", path, dst); } } closedir(dir); } int main() { traverse("/proc/"); return 1; }
