Linux系统常用目录操作函数 分类: B3_LINUX 2013-02-18 16:44 486人阅读 评论(0) 收藏
参考《Linux程序设计》第二版P103
扫描目录:
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <dirent.h> #include <unistd.h> #include <sys/stat.h> void printdir(char *dir, int depth); int main(void){ printf("Directory scan of /home:\n"); printdir("/home", 0); printf("Done.\n"); exit(0); } void printdir(char *dir, int depth){ DIR *dp; struct dirent *entry; struct stat statbuf; if((dp = opendir(dir)) == NULL){ fprintf(stderr, "Can not open directory: %s.\n", dir); return; } chdir(dir); while((entry = readdir(dp)) != NULL){ lstat(entry->d_name, &statbuf); if(S_ISDIR(statbuf.st_mode)){ if((strcmp(".", entry->d_name)==0)||(strcmp("..", entry->d_name) == 0)){ continue; } printf("%*s%s/\n", depth, "", entry->d_name); printdir(entry->d_name, depth+4); } else{ printf("%*s%s\n", depth, "", entry->d_name); } } chdir(".."); closedir(dp); }
涉及的几个目录操作函数为:
(1) DIR *opendir(const char *name);
(2) struct dirent *readdir(DIR *dirp);
(3) int closedir(DIR *dirp);
(4) int chdir(const char *path);
以及文件操作函数:
int lstat(const char *path, struct stat *buf);
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