cups: fix build without PAM

Add upstream patch removing MD5 code that builds when PAM is not
enabled.

Fixes:
http://autobuild.buildroot.net/results/48d/48d53bdeceafdbb51756d5c0b9936ce7c98b4ddc/
http://autobuild.buildroot.net/results/13c/13cb03a8d0ae215c418fe2520a27b2940efd4a39/
http://autobuild.buildroot.net/results/fd3/fd3c56b60bb0411b38dc7279880d1fab7228c20a/

Cc: Olivier Schonken <olivier.schonken@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Olivier Schonken <olivier.schonken@gmail.com>
Signed-off-by: Baruch Siach &lt;<a href="mailto:baruch@tkos.co.il" target="_blank" rel="noreferrer">baruch@tkos.co.il</a>&gt;<br>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Baruch Siach 2018-04-30 22:19:15 +03:00 committed by Peter Korsgaard
parent 3cfa33d5ad
commit d11d46e33c

View File

@ -0,0 +1,189 @@
From 570933a6a3597371bae1beeb754ee8711d6305ab Mon Sep 17 00:00:00 2001
From: Michael R Sweet <michael.r.sweet@gmail.com>
Date: Mon, 2 Apr 2018 20:05:13 -0400
Subject: [PATCH] Fix builds without PAM (Issue #5283)
[baruch: drop CHANGES.md hunk]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
Upstream status: commit 570933a6a3
CHANGES.md | 8 ++-
scheduler/auth.c | 134 ++---------------------------------------------
2 files changed, 11 insertions(+), 131 deletions(-)
diff --git a/scheduler/auth.c b/scheduler/auth.c
index 8b134b5d7257..fa4e2715de34 100644
--- a/scheduler/auth.c
+++ b/scheduler/auth.c
@@ -1,8 +1,8 @@
/*
* Authorization routines for the CUPS scheduler.
*
- * Copyright 2007-2016 by Apple Inc.
- * Copyright 1997-2007 by Easy Software Products, all rights reserved.
+ * Copyright © 2007-2018 by Apple Inc.
+ * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
*
* This file contains Kerberos support code, copyright 2006 by
* Jelmer Vernooij.
@@ -71,9 +71,6 @@ static int check_authref(cupsd_client_t *con, const char *right);
static int compare_locations(cupsd_location_t *a,
cupsd_location_t *b);
static cupsd_authmask_t *copy_authmask(cupsd_authmask_t *am, void *data);
-#if !HAVE_LIBPAM
-static char *cups_crypt(const char *pw, const char *salt);
-#endif /* !HAVE_LIBPAM */
static void free_authmask(cupsd_authmask_t *am, void *data);
#if HAVE_LIBPAM
static int pam_func(int, const struct pam_message **,
@@ -694,14 +691,14 @@ cupsdAuthorize(cupsd_client_t *con) /* I - Client connection */
* client...
*/
- pass = cups_crypt(password, pw->pw_passwd);
+ pass = crypt(password, pw->pw_passwd);
if (!pass || strcmp(pw->pw_passwd, pass))
{
# ifdef HAVE_SHADOW_H
if (spw)
{
- pass = cups_crypt(password, spw->sp_pwdp);
+ pass = crypt(password, spw->sp_pwdp);
if (pass == NULL || strcmp(spw->sp_pwdp, pass))
{
@@ -1995,129 +1992,6 @@ copy_authmask(cupsd_authmask_t *mask, /* I - Existing auth mask */
}
-#if !HAVE_LIBPAM
-/*
- * 'cups_crypt()' - Encrypt the password using the DES or MD5 algorithms,
- * as needed.
- */
-
-static char * /* O - Encrypted password */
-cups_crypt(const char *pw, /* I - Password string */
- const char *salt) /* I - Salt (key) string */
-{
- if (!strncmp(salt, "$1$", 3))
- {
- /*
- * Use MD5 passwords without the benefit of PAM; this is for
- * Slackware Linux, and the algorithm was taken from the
- * old shadow-19990827/lib/md5crypt.c source code... :(
- */
-
- int i; /* Looping var */
- unsigned long n; /* Output number */
- int pwlen; /* Length of password string */
- const char *salt_end; /* End of "salt" data for MD5 */
- char *ptr; /* Pointer into result string */
- _cups_md5_state_t state; /* Primary MD5 state info */
- _cups_md5_state_t state2; /* Secondary MD5 state info */
- unsigned char digest[16]; /* MD5 digest result */
- static char result[120]; /* Final password string */
-
-
- /*
- * Get the salt data between dollar signs, e.g. $1$saltdata$md5.
- * Get a maximum of 8 characters of salt data after $1$...
- */
-
- for (salt_end = salt + 3; *salt_end && (salt_end - salt) < 11; salt_end ++)
- if (*salt_end == '$')
- break;
-
- /*
- * Compute the MD5 sum we need...
- */
-
- pwlen = strlen(pw);
-
- _cupsMD5Init(&state);
- _cupsMD5Append(&state, (unsigned char *)pw, pwlen);
- _cupsMD5Append(&state, (unsigned char *)salt, salt_end - salt);
-
- _cupsMD5Init(&state2);
- _cupsMD5Append(&state2, (unsigned char *)pw, pwlen);
- _cupsMD5Append(&state2, (unsigned char *)salt + 3, salt_end - salt - 3);
- _cupsMD5Append(&state2, (unsigned char *)pw, pwlen);
- _cupsMD5Finish(&state2, digest);
-
- for (i = pwlen; i > 0; i -= 16)
- _cupsMD5Append(&state, digest, i > 16 ? 16 : i);
-
- for (i = pwlen; i > 0; i >>= 1)
- _cupsMD5Append(&state, (unsigned char *)((i & 1) ? "" : pw), 1);
-
- _cupsMD5Finish(&state, digest);
-
- for (i = 0; i < 1000; i ++)
- {
- _cupsMD5Init(&state);
-
- if (i & 1)
- _cupsMD5Append(&state, (unsigned char *)pw, pwlen);
- else
- _cupsMD5Append(&state, digest, 16);
-
- if (i % 3)
- _cupsMD5Append(&state, (unsigned char *)salt + 3, salt_end - salt - 3);
-
- if (i % 7)
- _cupsMD5Append(&state, (unsigned char *)pw, pwlen);
-
- if (i & 1)
- _cupsMD5Append(&state, digest, 16);
- else
- _cupsMD5Append(&state, (unsigned char *)pw, pwlen);
-
- _cupsMD5Finish(&state, digest);
- }
-
- /*
- * Copy the final sum to the result string and return...
- */
-
- memcpy(result, salt, (size_t)(salt_end - salt));
- ptr = result + (salt_end - salt);
- *ptr++ = '$';
-
- for (i = 0; i < 5; i ++, ptr += 4)
- {
- n = ((((unsigned)digest[i] << 8) | (unsigned)digest[i + 6]) << 8);
-
- if (i < 4)
- n |= (unsigned)digest[i + 12];
- else
- n |= (unsigned)digest[5];
-
- to64(ptr, n, 4);
- }
-
- to64(ptr, (unsigned)digest[11], 2);
- ptr += 2;
- *ptr = '\0';
-
- return (result);
- }
- else
- {
- /*
- * Use the standard crypt() function...
- */
-
- return (crypt(pw, salt));
- }
-}
-#endif /* !HAVE_LIBPAM */
-
-
/*
* 'free_authmask()' - Free function for auth masks.
*/
--
2.17.0