Verifying a user's password

I am writing a UNIX program to verify a user's UNIX user name and password. UNIX includes a structure called passwd that allows programmers to verify fields in the passwd file. Comparing and verifying the user inputted/supplied name can be accomplished using this structure; however, the users inputted/supplied password can not, since it must be encrypted before it can be used. Is there a function that encrypts the user's inputted password? Th objective is to compare it against the field in the passwd file.


ronandersen@hotmail.com
ronandersenAsked:
Who is Participating?
 
hajekCommented:
integer pw_compare(current, check)
char    *current,               /* Current pw (encrypted) */
        *check;                 /* check pw (plain) */
{
        if (!*current)
                return(0);
        return(!strcmp(current, crypt(check, current)));
}
0
 
ronandersenAuthor Commented:
Edited text of question
0
 
ronandersenAuthor Commented:
This question should probably go under the topic UNIX programming, although administrators could benefit from the response.
0
 
ozoCommented:
man 3 crypt

0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.