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comparison mupdf-source/thirdparty/curl/lib/curl_gssapi.c @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 2011 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23 #include "curl_setup.h"
24
25 #ifdef HAVE_GSSAPI
26
27 #include "curl_gssapi.h"
28 #include "sendf.h"
29
30 /* The last 3 #include files should be in this order */
31 #include "curl_printf.h"
32 #include "curl_memory.h"
33 #include "memdebug.h"
34
35 static char spnego_oid_bytes[] = "\x2b\x06\x01\x05\x05\x02";
36 gss_OID_desc Curl_spnego_mech_oid = { 6, &spnego_oid_bytes };
37 static char krb5_oid_bytes[] = "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02";
38 gss_OID_desc Curl_krb5_mech_oid = { 9, &krb5_oid_bytes };
39
40 OM_uint32 Curl_gss_init_sec_context(
41 struct Curl_easy *data,
42 OM_uint32 *minor_status,
43 gss_ctx_id_t *context,
44 gss_name_t target_name,
45 gss_OID mech_type,
46 gss_channel_bindings_t input_chan_bindings,
47 gss_buffer_t input_token,
48 gss_buffer_t output_token,
49 const bool mutual_auth,
50 OM_uint32 *ret_flags)
51 {
52 OM_uint32 req_flags = GSS_C_REPLAY_FLAG;
53
54 if(mutual_auth)
55 req_flags |= GSS_C_MUTUAL_FLAG;
56
57 if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_POLICY_FLAG) {
58 #ifdef GSS_C_DELEG_POLICY_FLAG
59 req_flags |= GSS_C_DELEG_POLICY_FLAG;
60 #else
61 infof(data, "warning: support for CURLGSSAPI_DELEGATION_POLICY_FLAG not "
62 "compiled in\n");
63 #endif
64 }
65
66 if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_FLAG)
67 req_flags |= GSS_C_DELEG_FLAG;
68
69 return gss_init_sec_context(minor_status,
70 GSS_C_NO_CREDENTIAL, /* cred_handle */
71 context,
72 target_name,
73 mech_type,
74 req_flags,
75 0, /* time_req */
76 input_chan_bindings,
77 input_token,
78 NULL, /* actual_mech_type */
79 output_token,
80 ret_flags,
81 NULL /* time_rec */);
82 }
83
84 #define GSS_LOG_BUFFER_LEN 1024
85 static size_t display_gss_error(OM_uint32 status, int type,
86 char *buf, size_t len) {
87 OM_uint32 maj_stat;
88 OM_uint32 min_stat;
89 OM_uint32 msg_ctx = 0;
90 gss_buffer_desc status_string;
91
92 do {
93 maj_stat = gss_display_status(&min_stat,
94 status,
95 type,
96 GSS_C_NO_OID,
97 &msg_ctx,
98 &status_string);
99 if(GSS_LOG_BUFFER_LEN > len + status_string.length + 3) {
100 len += msnprintf(buf + len, GSS_LOG_BUFFER_LEN - len,
101 "%.*s. ", (int)status_string.length,
102 (char *)status_string.value);
103 }
104 gss_release_buffer(&min_stat, &status_string);
105 } while(!GSS_ERROR(maj_stat) && msg_ctx != 0);
106
107 return len;
108 }
109
110 /*
111 * Curl_gss_log_error()
112 *
113 * This is used to log a GSS-API error status.
114 *
115 * Parameters:
116 *
117 * data [in] - The session handle.
118 * prefix [in] - The prefix of the log message.
119 * major [in] - The major status code.
120 * minor [in] - The minor status code.
121 */
122 void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
123 OM_uint32 major, OM_uint32 minor)
124 {
125 char buf[GSS_LOG_BUFFER_LEN];
126 size_t len = 0;
127
128 if(major != GSS_S_FAILURE)
129 len = display_gss_error(major, GSS_C_GSS_CODE, buf, len);
130
131 display_gss_error(minor, GSS_C_MECH_CODE, buf, len);
132
133 infof(data, "%s%s\n", prefix, buf);
134 }
135
136 #endif /* HAVE_GSSAPI */