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我正在从 Ubuntu 的终端运行我的代码,以搜索特定文件,但搜索会在该文件夹内部以及外部生成文件夹和文件。这是代码:

(编译和运行)

#include <stdio.h>     // For perror
#include <stdlib.h>
#include <sys/types.h> // For stat, opendir, readdir
#include <sys/stat.h>  // For stat
#include <unistd.h>    // For stat
#include <dirent.h>    // For opendir, readdir


int displayAllFiles(char * directory)
{

    DIR *dir;
    struct dirent *ent;
        dir = opendir (directory);
    if (dir != NULL) {

      /* print all the files and directories within directory */
      while ((ent = readdir (dir)) != NULL) {
        printf ("%s\n", ent->d_name);
      }
      closedir (dir);
    } else {
      /* could not open directory */
      perror ("");
      return EXIT_FAILURE;
    }

    return 1;

}



int main(int argc , char * argv[])
{

    DIR *dir;
    struct dirent *entry;
    int result;
    struct stat status;
    char path[PATH_MAX];

    dir = opendir(argv[1]);
    if (!dir)
    {
        perror("opendir");
        exit(1);
    }

    entry = readdir(dir);
    while (entry)
    {
        result = snprintf(path, sizeof(path), "%s", argv[1]);
        snprintf(&path[result], sizeof(path) - result, "/%s", entry->d_name);

        int out = displayAllFiles(path);
        printf("%s", path);

        result = lstat(path, &status);
        if (-1 == result)
        {
            printf("\n");
            perror("stat");
            exit(2);
        }

        if (S_ISLNK(status.st_mode))
        {
            printf("%s", " is a symbolic link");
        }

        printf("\n");

        entry = readdir(dir);
    }


    return(0);
}

我从终端打./exer4 check,那个文件夹check是父文件夹,然后:

  • insideCheck在里面check
  • moreInside在里面insideCheck
  • 并且david.txt在里面moreInside

但是,我得到的是:

a@ubuntu:~/Desktop$ ./exer4 check
check
..
Link to workspace2
eclipse 4 linux
fol
.
basherFolder
Link to eclipse
test
eclipse
exer4
doc.txt~
check/..
..
.
insideCheck
check/.
..
moreInside
.
david.txt~
check/insideCheck

出了点问题,我可以看到,但不知道是什么。

我会很感激你的帮助。

4

1 回答 1

4

这是因为...也列在当前目录中,这里的..意思是父目录。

回答您的评论:将路径与.or进行比较..不起作用,因为如您所见,路径是Directory/.并且Directory/..

while (entry)
{
    result = snprintf(path, sizeof(path), "%s", argv[1]);
    snprintf(&path[result], sizeof(path) - result, "/%s", entry->d_name);

    char cur_str[80];
    char par_str[80];
    strcpy ( cur_str , argv[1] );
    strcat ( cur_str , "/." );

    strcpy ( par_str , argv[1] );
    strcat ( par_str , "/.." );

    if (strcmp(path,cur_str) == 0 || strcmp(path ,par_str) == 0) {
     break;
    }
    int out = displayAllFiles(path);
    printf("%s", path);

    result = lstat(path, &status);
    if (-1 == result)
    {
        printf("\n");
        perror("stat");
        exit(2);
    }
    if (S_ISLNK(status.st_mode))
    {
        printf("%s", " is a symbolic link");
    }

    printf("\n");

    entry = readdir(dir);
}

上面的代码有效。(虽然它在不是目录的文件上打印“不是目录”错误)。

于 2012-06-15T19:08:51.473 回答