2
* Copyright (c) 1999-2005, 2010
3
* Todd C. Miller <Todd.Miller@courtesan.com>
5
* Permission to use, copy, modify, and distribute this software for any
6
* purpose with or without fee is hereby granted, provided that the above
7
* copyright notice and this permission notice appear in all copies.
9
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17
* Sponsored in part by the Defense Advanced Research Projects
18
* Agency (DARPA) and Air Force Research Laboratory, Air Force
19
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
24
#include <sys/types.h>
25
#include <sys/param.h>
34
#endif /* STDC_HEADERS */
37
#endif /* HAVE_STRING_H */
40
#endif /* HAVE_STRINGS_H */
43
#endif /* HAVE_UNISTD_H */
47
#include "sudo_auth.h"
50
#define HAS_AGEINFO(p, l) (l == 18 && p[DESLEN] == ',')
53
passwd_init(pw, promptp, auth)
58
#ifdef HAVE_SKEYACCESS
59
if (skeyaccess(pw, user_tty, NULL, NULL) == 0)
66
passwd_verify(pw, pass, auth)
75
pw_len = strlen(pw->pw_passwd);
77
#ifdef HAVE_GETAUTHUID
78
/* Ultrix shadow passwords may use crypt16() */
79
error = strcmp(pw->pw_passwd, (char *) crypt16(pass, pw->pw_passwd));
82
#endif /* HAVE_GETAUTHUID */
85
* Truncate to 8 chars if standard DES since not all crypt()'s do this.
86
* If this turns out not to be safe we will have to use OS #ifdef's (sigh).
89
if (pw_len == DESLEN || HAS_AGEINFO(pw->pw_passwd, pw_len))
93
* Normal UN*X password check.
94
* HP-UX may add aging info (separated by a ',') at the end so
95
* only compare the first DESLEN characters in that case.
97
epass = (char *) crypt(pass, pw->pw_passwd);
99
if (HAS_AGEINFO(pw->pw_passwd, pw_len) && strlen(epass) == DESLEN)
100
error = strncmp(pw->pw_passwd, epass, DESLEN);
102
error = strcmp(pw->pw_passwd, epass);
104
return(error ? AUTH_FAILURE : AUTH_SUCCESS);