xref: /illumos-gate/usr/src/cmd/cmd-inet/usr.bin/ftp/cmds_gss.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
1 /*
2  * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*
7  * Copyright (c) 1985, 1989 Regents of the University of California.
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *      This product includes software developed by the University of
21  *      California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include "ftp_var.h"
40 #include <gssapi/gssapi.h>
41 #include <gssapi/gssapi_ext.h>
42 
43 void
44 user_gss_error(OM_uint32 maj_stat, OM_uint32 min_stat, char *errstr)
45 {
46 	OM_uint32 gmaj_stat, gmin_stat;
47 	gss_buffer_desc msg;
48 	OM_uint32 msg_ctx = 0;
49 	int display_error = 0;
50 
51 	/* Print the major status error from GSS */
52 	while (!msg_ctx) {
53 	    gmaj_stat = gss_display_status(&gmin_stat, maj_stat,
54 		GSS_C_GSS_CODE, GSS_C_NULL_OID, &msg_ctx, &msg);
55 	    if ((gmaj_stat == GSS_S_COMPLETE)||
56 		(gmaj_stat == GSS_S_CONTINUE_NEEDED)) {
57 		/* display error messages only once */
58 		if ((debug) || (!display_error)) {
59 		    (void) fprintf(stderr, "GSSAPI error major: %s\n",
60 			(char *)msg.value);
61 		    display_error = 1;
62 		}
63 		(void) gss_release_buffer(&gmin_stat, &msg);
64 	    }
65 	    if (gmaj_stat != GSS_S_CONTINUE_NEEDED)
66 		break;
67 	}
68 
69 	/* Print the minor status error from the mech */
70 	msg_ctx = 0;
71 	display_error = 0;
72 	if (min_stat)
73 	    while (!msg_ctx) {
74 		gmaj_stat = gss_display_status(&gmin_stat, min_stat,
75 		    GSS_C_MECH_CODE, GSS_C_NULL_OID, &msg_ctx, &msg);
76 		if ((gmaj_stat == GSS_S_COMPLETE)||
77 		    (gmaj_stat == GSS_S_CONTINUE_NEEDED)) {
78 		    /* display error messages only once */
79 		    if ((!display_error) || (!debug)) {
80 			(void) fprintf(stderr, "GSSAPI error minor: %s\n",
81 			    (char *)msg.value);
82 			display_error = 1;
83 		    }
84 		    (void) gss_release_buffer(&gmin_stat, &msg);
85 		}
86 		if (gmaj_stat != GSS_S_CONTINUE_NEEDED)
87 			break;
88 	    }
89 
90 	if (debug) {
91 	    (void) fprintf(stderr, "GSSAPI error: %s\n", errstr);
92 	}
93 }
94