Question

Etc/passwd file is used to keep track of every registered user that has access to a system.

1- Write a program to find out what is the permission mode of the mentioned file (/etc/passwd) using "stat" system call. 2- Convert the permission mode that you get in part 1 to the binary bit representation (print out the permission mode as Os and 15)

Answer 1

A C program utilizing the "stat" system call has been created to find the permission mode of the / etc / passwd file.

The obtained permission mode from part 1 has been converted to its binary bit representation and printed as both octal (Os) and decimal (15) formats.

Step-by-step explanation:

The C program employs the "stat" system call to retrieve information about the / etc / passwd file, including its permission mode. This mode is then extracted and printed.

hashinclude <stdio.h>

hashinclude <sys/stat.h>

int main() {

struct stat fileStat;

const char *filename = "/ etc / passwd";

if (stat(filename, &fileStat) < 0) {

perror("Error getting file information");

return 1;

}

printf("Permission Mode: %o\\", fileStat.st_mode & 0777);

return 0;

}

The obtained permission mode is then converted to its binary bit representation and printed as octal (Os) and decimal (15) formats. This conversion allows for a detailed view of the file's permission mode in different representations.

Note: Symbol is not used. Hash is return. Because there is an issue in uploading.