Details of a file.

Hi, In an environ, gcc running under solaris, i need to check whether a file is a directory or a simple file. Could anyone let me know how to do this.

-gsbabu
gsbabuAsked:
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ori_bConnect With a Mentor Commented:
try S_IFDIR instead, it is defined
in <sys/stat.h>
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ori_bCommented:
Try the following :

#include <sys/types.h>
#include <sys/stat.h>

struct stat buf;
         
if (stat("file_name", &buf) == 0) {
 if ((buf.st_mode & S_IFMT) == _IFDIR)  {
      // it is a directory
}
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gsbabuAuthor Commented:
ori_b
>> f ((buf.st_mode & S_IFMT) == _IFDIR)  {

on compiling, i get _IFDIR undeclared, i don't know more about, where it could be defined. help.

-gsbabu
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gsbabuAuthor Commented:
thanks, it is ok, also could i know how to make this in a loop, that is if in a directory there are some entries, which could be plain file or directory, i need to loop for the number of entries in the directory. could you help me. thanks for your previous help, let me know if you want me to post this as a new question.

--gsbabu.
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ori_bCommented:
You can try this (if I understood your question correctly) :

int     DirLoop(const char* path) {
 
  DIR *dirp;
  struct dirent *direntp;

  char file_name[256];
 
  printf("opening directory %s\n",path);
 
  dirp = opendir( path );
  if (dirp == NULL) {
      printf("Error %s : %s\n", path,strerror(errno));
      return -1;
  }
 
  while ( (direntp = readdir( dirp )) != NULL ) {
      if (direntp == NULL) {
        printf("Erorr %s : %s \n", path,strerror(errno));
        return -1;
      }


    // skip the ./ and ../ files        
    if (direntp->d_name[0] != '.') {

        // build the full path
        strcpy (file_name,path);
        strcat (file_name,"/");
        strcat (file_name,direntp->d_name);

        struct stat buf;
        
        // Find file's type
        if (stat(file_name, &buf) == 0) {
            if ((buf.st_mode & S_IFMT) == S_IFDIR) {
              // it is a directory
              DirLoop(file_name);
            }

            else {
              // A regular file - Do What you want to ...
              printf("%s\n",file_name);
            }
        }

        else {
            printf("Fail to stat file %s : %s\n",file_name, strerror(errno ));
            return -1;
        }
      
      }
  }

 
  if (closedir( dirp ) == -1) {
      printf("Erorr closedir of %s : %s \n", path,strerror(errno));
      return -1;
  }

  return 0;
}

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ori_bCommented:
You will need these #include  :

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

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gsbabuAuthor Commented:

Thanks very much Master Ori, It really worked pretty well.

 -gsbabu
 ugnasu01@thiru.vetri.com
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ori_bCommented:
glad to help
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