1  
 2  
 3  #include <security/checkpw.h>
 4  #include <pwd.h>
 5  #include <stdio.h>
 6  #include <string.h>
 7  #include <unistd.h>
 8  
 9  const char *prompt = "checkpw test prompt:";
10  
11  int
12  main(int argv, char *argc[])
13  {
14  	char *uname;
15  	int retval = 0;
16  	struct passwd *pw = NULL;
17  
18  	uname = (char*)getenv("USER");
19  	if ( NULL == uname)
20  	{
21  		uid_t uid = getuid();
22  		struct passwd *pw = getpwuid(uid);
23  		uname = pw->pw_name;
24  	}
25  
26  	retval = checkpw(uname, getpass(prompt));
27  	if (0 == retval)
28  	{
29  		printf("Password is okay.\n");
30  	} else {
31  		printf("Incorrect password.\n");
32  	}
33  
34  	return retval;
35  }