]>
Commit | Line | Data |
---|---|---|
1 | /* $Header$ | |
2 | * | |
3 | * Routines to encrypt ID's | |
4 | * | |
5 | * (c) Copyright 1988 by the Massachusetts Institute of Technology. | |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
8 | */ | |
9 | ||
10 | #include <mit-copyright.h> | |
11 | #include <string.h> | |
12 | #include <ctype.h> | |
13 | #include <unistd.h> | |
14 | #ifdef USE_CRYPT_H | |
15 | #include <crypt.h> | |
16 | #endif | |
17 | ||
18 | /* Function Name: RemoveHyphens | |
19 | * Description: Removes all hyphens from the string passed to it. | |
20 | * Arguments: str - the string to remove the hyphes from | |
21 | * Returns: none | |
22 | */ | |
23 | ||
24 | void RemoveHyphens(char *str) | |
25 | { | |
26 | char *hyphen; | |
27 | ||
28 | while ((hyphen = strchr(str, '-'))) | |
29 | strcpy(hyphen, hyphen + 1); | |
30 | } | |
31 | ||
32 | ||
33 | /* Function Name: EncryptMITID | |
34 | * Description: Encrypts an mit ID number. | |
35 | * Arguments: sbuf - the buffer to return the encrypted number in. | |
36 | * idnumber - the id number (string). | |
37 | * first, last - name of the person. | |
38 | * Returns: none. | |
39 | */ | |
40 | ||
41 | void EncryptID(char *sbuf, char *idnumber, char *first, char *last) | |
42 | { | |
43 | char salt[3]; | |
44 | ||
45 | RemoveHyphens(idnumber); | |
46 | salt[0] = tolower(last[0]); | |
47 | salt[1] = tolower(first[0]); | |
48 | salt[2] = '\0'; | |
49 | ||
50 | strcpy(sbuf, crypt(&idnumber[2], salt)); | |
51 | } | |
52 |