write a c program to know given file is regular character, Problem Solving, Adv C

Answer

#include "time.h"
#include "sys\stat.h"
#include "stdio.h"
void main(){
    struct stat status;
    FILE *fp;
    stat("c:\\tc\\bin",&status);
    clrscr();
    if (status.st_mode & S_IFDIR)
         printf("It is directory.\n");
    if (status.st_mode & S_IFCHR)
         printf("It is chracter file.");
    if (status.st_mode & S_IFREG)
         printf("It is reggular file.");
    getch();
}

Output: It is directory.

+ ExplanationNot Moderated

Function int stat (char *, struct stat *) store the information of open file in form of structure struct stat Structure struct stat has been defined in sysstat.h as

struct stat {
    short  st_dev,   st_ino;
    short  st_mode,  st_nlink;
    int    st_uid,   st_gid;
    short  st_rdev;
    long   st_size,  st_atime;
    long   st_mtime, st_ctime;
};

Here (m)st_dev: It describe file has stored in which drive of your computer. (n)st_mode: It describes various modes of file like file is read only, write only, folder, character file etc. (o)st_size: It tells the size of file in byte. (p)St_ctime:It tells last data of modification of the file. There are some macro has been defined in sysstat.h Name Meaning S_IFMT File type mask S_IFDIR Directory S_IFIFO FIFO special S_IFCHR Character special S_IFBLK Block special S_IFREG Regular file S_IREAD Owner can read S_IWRITE Owner can write S_IEXEC Owner can execute So masking or bitwise and operation between status.st_mode and S_IFDIR return true if it is directory and so on

Question:Write a c program to know given file is regular file, character special or it is directory?