This Program gives the UserDetails of the logged in User.
a) The RealName
b) Login Name ( Why do we need this?)
c) Home Directory
d) Default Login Shell
Additional Purpose of this code would be to invoke/ learn at man getpwuid and about struct passswd
/* Program to get the Details of the user like User's Real Name, Username and Shell */
#include <pwd.h> /* getpwdid */
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
void user_details(void);
int main(void)
{
user_details();
return 0;
}
void user_details(void)
{
struct passwd *passwd; /* man getpwuid */
passwd = getpwuid ( getuid()); /* Get the uid of the running processand use it to get a record from /etc/passwd */
printf("\n The Real User Name is %s ", passwd->pw_gecos);
printf("\n The Login Name is %s ", passwd->pw_name);
printf("\n The Home Directory is %s", passwd->pw_dir);
printf("\n The Login Shell is %s ", passwd->pw_shell);
printf("\n The Passwd is %s ", getpwuid(getuid()) >pw_passwd);
printf("\n The uid is %lu ", (unsigned long) getpwuid(getuid())->pw_uid);
printf("\n The gid is %lu \n\n", (unsigned long) getpwuid(getuid())->pw_gid);
}
/* Program to get the Details of the user like User's Real Name, Username and Shell */
#include <pwd.h> /* getpwdid */
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
void user_details(void);
int main(void)
{
user_details();
return 0;
}
void user_details(void)
{
struct passwd *passwd; /* man getpwuid */
passwd = getpwuid ( getuid()); /* Get the uid of the running processand use it to get a record from /etc/passwd */
printf("\n The Real User Name is %s ", passwd->pw_gecos);
printf("\n The Login Name is %s ", passwd->pw_name);
printf("\n The Home Directory is %s", passwd->pw_dir);
printf("\n The Login Shell is %s ", passwd->pw_shell);
printf("\n The Passwd is %s ", getpwuid(getuid())->pw_passwd);
printf("\n The uid is %lu ", (unsigned long) getpwuid(getuid())->pw_uid);
printf("\n The gid is %lu \n\n", (unsigned long) getpwuid(getuid())->pw_gid);
}
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