Lucas Leonardo wrote:
> I'am writing a program that need to verify a user password. Is there
> function call to retrieve a user password or fuction call to verify a
> user pasword?
The password hash can be obtained using getpwent, getpwnam or getpwuid
(or if you are using shadow passwords, getspent or getspnam).
To check a password, you use the crypt() function, and compare the
result against the password hash, e.g.
#include <pwd.h>
#include <crypt.h>
static int
check_passwd(const char *user, const char *passwd)
{
struct passwd *pw;
pw = getpwnam(user);
if (!pw)
return 0; /* no such user */
return (strcmp(pw->pw_passwd, crypt(passwd, pw->pw_passwd)) == 0);
}
--
Glynn Clements <[EMAIL PROTECTED]>
