Linux下用C语言显示文件夹下所有文件的名称、大小、最后修改时间

为了实现Linux下ls的功能
逐步完成各项功能
递归显示文件夹与子文件下文件名称

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
int readFileList(char *basePath)
{
    DIR *dir;
    struct dirent *ptr;
    char base[1000];

    if ((dir=opendir(basePath)) == NULL)
    {
        perror("Open dir error...");
        exit(1);
    }

    while ((ptr=readdir(dir)) != NULL)
    {
        if(strcmp(ptr->d_name,".")==0 || strcmp(ptr->d_name,"..")==0)    ///current dir OR parrent dir
            continue;
        else if(ptr->d_type == 8)    ///file
            printf("d_name:%s/%s\n",basePath,ptr->d_name);
        else if(ptr->d_type == 10)    ///link file
            printf("d_name:%s/%s\n",basePath,ptr->d_name);
        else if(ptr->d_type == 4)    ///dir
        {
            memset(base,'\0',sizeof(base));
            strcpy(base,basePath);
            strcat(base,"/");
            strcat(base,ptr->d_name);
            readFileList(base);
        }
    }
    closedir(dir);
    return 1;
}

int main(void)
{
    DIR *dir;
    char basePath[1000];

    ///get the current absoulte path
    memset(basePath,'\0',sizeof(basePath));
    getcwd(basePath, 999);
    printf("the current dir is : %s\n",basePath);

    ///get the file list
// memset(basePath,'\0',sizeof(basePath));
// strcpy(basePath,"./XL");
    readFileList(basePath);
    return 0;
}

显示文件大小和最后修改时间

#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <time.h>
#include <string.h>

static int get_file_size_time (const char *filename)
{
  struct stat statbuf;
  if (stat (filename, &statbuf) == -1)
    {
      printf ("Get stat on %s Error：%s\n", filename, strerror (errno));
      return (-1);
    }
  if (S_ISDIR (statbuf.st_mode))
    return (1);
  if (S_ISREG (statbuf.st_mode))
    printf ("%s size：%ld bytes\tmodified at %s",
        filename, statbuf.st_size, ctime (&statbuf.st_mtime));
  return (0);
}

int main (int argc, char **argv)
{
  DIR *dirp;
  struct dirent *direntp;
  int stats;
  if (argc != 2)
    {
      printf ("Usage：%s filename\n\a", argv[0]);
      exit (1);
    }
  if (((stats = get_file_size_time (argv[1])) == 0) || (stats == -1))
    exit (1);
  if ((dirp = opendir (argv[1])) == NULL)
    {
      printf ("Open Directory %s Error：%s\n", argv[1], strerror (errno));
      exit (1);
    }
  while ((direntp = readdir (dirp)) != NULL)
    if (get_file_size_time (direntp ->d_name) == -1)
      break;
  closedir (dirp);
  exit (1);
}