[gssapi-openssh.git] / openssh / openbsd-compat / port-uw.c

/*
 * Copyright (c) 2005 The SCO Group. All rights reserved.
 * Copyright (c) 2005 Tim Rice. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"

#if defined(HAVE_LIBIAF)  &&  !defined(BROKEN_LIBIAF)
#ifdef HAVE_CRYPT_H
#include <crypt.h>
#endif
#include "packet.h"
#include "buffer.h"
#include "log.h"
#include "servconf.h"
#include "auth.h"
#include "auth-options.h"

int nischeck(char *);

int
sys_auth_passwd(Authctxt *authctxt, const char *password)
{
	struct passwd *pw = authctxt->pw;
	char *encrypted_password;
	char *salt;
	int result;

	/* Just use the supplied fake password if authctxt is invalid */
	char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd;

	/* Check for users with no password. */
	if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0)
		return (1);

	/* Encrypt the candidate password using the proper salt. */
	salt = (pw_password[0] && pw_password[1]) ? pw_password : "xx";
#ifdef UNIXWARE_LONG_PASSWORDS
	if (!nischeck(pw->pw_name))
		encrypted_password = bigcrypt(password, salt);
	else
#endif /* UNIXWARE_LONG_PASSWORDS */
		encrypted_password = xcrypt(password, salt);

	/*
	 * Authentication is accepted if the encrypted passwords
	 * are identical.
	 */
	result = (strcmp(encrypted_password, pw_password) == 0);

	if (authctxt->valid)
		free(pw_password);
	return(result);
}

#ifdef UNIXWARE_LONG_PASSWORDS
int
nischeck(char *namep)
{
	char password_file[] = "/etc/passwd";
	FILE *fd;
	struct passwd *ent = NULL;

	if ((fd = fopen (password_file, "r")) == NULL) {
		/*
		 * If the passwd file has dissapeared we are in a bad state.
		 * However, returning 0 will send us back through the
		 * authentication scheme that has checked the ia database for
		 * passwords earlier.
		 */
		return(0);
	}

	/*
	 * fgetpwent() only reads from password file, so we know for certain
	 * that the user is local.
	 */
	while (ent = fgetpwent(fd)) {
		if (strcmp (ent->pw_name, namep) == 0) {
			/* Local user */
			fclose (fd);
			return(0);
		}
	}

	fclose (fd);
	return (1);
}

#endif /* UNIXWARE_LONG_PASSWORDS */

/*
	NOTE: ia_get_logpwd() allocates memory for arg 2
	functions that call shadow_pw() will need to free
 */

char *
get_iaf_password(struct passwd *pw)
{
	char *pw_password = NULL;

	uinfo_t uinfo;
	if (!ia_openinfo(pw->pw_name,&uinfo)) {
		ia_get_logpwd(uinfo, &pw_password);
		if (pw_password == NULL)
			fatal("ia_get_logpwd: Unable to get the shadow passwd");
		ia_closeinfo(uinfo);
	 	return pw_password;
	}
	else
		fatal("ia_openinfo: Unable to open the shadow passwd file");
}
#endif /* HAVE_LIBIAF  && !BROKEN_LIBIAF */
Commit	Line	Data
181e6f32	1	/*
	2	* Copyright (c) 2005 The SCO Group. All rights reserved.
	3	* Copyright (c) 2005 Tim Rice. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	17	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#include "includes.h"
	27
	28	#if defined(HAVE_LIBIAF) && !defined(BROKEN_LIBIAF)
	29	#ifdef HAVE_CRYPT_H
	30	#include <crypt.h>
	31	#endif
	32	#include "packet.h"
	33	#include "buffer.h"
	34	#include "log.h"
	35	#include "servconf.h"
	36	#include "auth.h"
	37	#include "auth-options.h"
	38
	39	int nischeck(char *);
	40
	41	int
	42	sys_auth_passwd(Authctxt authctxt, const char password)
	43	{
	44	struct passwd *pw = authctxt->pw;
	45	char *encrypted_password;
	46	char *salt;
	47	int result;
	48
	49	/* Just use the supplied fake password if authctxt is invalid */
	50	char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd;
	51
	52	/* Check for users with no password. */
	53	if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0)
	54	return (1);
	55
	56	/* Encrypt the candidate password using the proper salt. */
	57	salt = (pw_password[0] && pw_password[1]) ? pw_password : "xx";
	58	#ifdef UNIXWARE_LONG_PASSWORDS
	59	if (!nischeck(pw->pw_name))
	60	encrypted_password = bigcrypt(password, salt);
	61	else
	62	#endif /* UNIXWARE_LONG_PASSWORDS */
	63	encrypted_password = xcrypt(password, salt);
	64
65	/*
66	* Authentication is accepted if the encrypted passwords
67	* are identical.
68	*/
69	result = (strcmp(encrypted_password, pw_password) == 0);
70
71	if (authctxt->valid)
72	free(pw_password);
73	return(result);
74	}
75
76	#ifdef UNIXWARE_LONG_PASSWORDS
77	int
78	nischeck(char *namep)
79	{
80	char password_file[] = "/etc/passwd";
81	FILE *fd;
82	struct passwd *ent = NULL;
83
84	if ((fd = fopen (password_file, "r")) == NULL) {
85	/*
86	* If the passwd file has dissapeared we are in a bad state.
87	* However, returning 0 will send us back through the
88	* authentication scheme that has checked the ia database for
89	* passwords earlier.
90	*/
91	return(0);
92	}
93
94	/*
95	* fgetpwent() only reads from password file, so we know for certain
96	* that the user is local.
97	*/
98	while (ent = fgetpwent(fd)) {
99	if (strcmp (ent->pw_name, namep) == 0) {
100	/* Local user */
101	fclose (fd);
102	return(0);
103	}
104	}
105
106	fclose (fd);
107	return (1);
108	}
109
110	#endif /* UNIXWARE_LONG_PASSWORDS */
111
112	/*
113	NOTE: ia_get_logpwd() allocates memory for arg 2
114	functions that call shadow_pw() will need to free
115	*/
116
117	char *
118	get_iaf_password(struct passwd *pw)
119	{
120	char *pw_password = NULL;
121
122	uinfo_t uinfo;
123	if (!ia_openinfo(pw->pw_name,&uinfo)) {
124	ia_get_logpwd(uinfo, &pw_password);
125	if (pw_password == NULL)
126	fatal("ia_get_logpwd: Unable to get the shadow passwd");
127	ia_closeinfo(uinfo);
128	return pw_password;
129	}
130	else
131	fatal("ia_openinfo: Unable to open the shadow passwd file");
132	}
133	#endif /* HAVE_LIBIAF && !BROKEN_LIBIAF */
134