1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "ap_config.h"
18
19#if APR_CHARSET_EBCDIC
20
21#include "apr_strings.h"
22#include "httpd.h"
23#include "http_log.h"
24#include "http_core.h"
25#include "util_ebcdic.h"
26
27/* we know core's module_index is 0 */
28#undef APLOG_MODULE_INDEX
29#define APLOG_MODULE_INDEX AP_CORE_MODULE_INDEX
30
31apr_status_t ap_init_ebcdic(apr_pool_t *pool)
32{
33    apr_status_t rv;
34
35    rv = apr_xlate_open(&ap_hdrs_to_ascii, "ISO-8859-1", APR_DEFAULT_CHARSET, pool);
36    if (rv) {
37        ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00040)
38                     "apr_xlate_open() failed");
39        return rv;
40    }
41
42    rv = apr_xlate_open(&ap_hdrs_from_ascii, APR_DEFAULT_CHARSET, "ISO-8859-1", pool);
43    if (rv) {
44        ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00041)
45                     "apr_xlate_open() failed");
46        return rv;
47    }
48
49    rv = apr_MD5InitEBCDIC(ap_hdrs_to_ascii);
50    if (rv) {
51        ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00042)
52                     "apr_MD5InitEBCDIC() failed");
53        return rv;
54    }
55
56    rv = apr_base64init_ebcdic(ap_hdrs_to_ascii, ap_hdrs_from_ascii);
57    if (rv) {
58        ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00043)
59                     "apr_base64init_ebcdic() failed");
60        return rv;
61    }
62
63    rv = apr_SHA1InitEBCDIC(ap_hdrs_to_ascii);
64    if (rv) {
65        ap_log_error(APLOG_MARK, APLOG_ERR, rv, NULL, APLOGNO(00044)
66                     "apr_SHA1InitEBCDIC() failed");
67        return rv;
68    }
69
70    return APR_SUCCESS;
71}
72
73void ap_xlate_proto_to_ascii(char *buffer, apr_size_t len)
74{
75    apr_size_t inbytes_left, outbytes_left;
76
77    inbytes_left = outbytes_left = len;
78    apr_xlate_conv_buffer(ap_hdrs_to_ascii, buffer, &inbytes_left,
79                          buffer, &outbytes_left);
80}
81
82void ap_xlate_proto_from_ascii(char *buffer, apr_size_t len)
83{
84    apr_size_t inbytes_left, outbytes_left;
85
86    inbytes_left = outbytes_left = len;
87    apr_xlate_conv_buffer(ap_hdrs_from_ascii, buffer, &inbytes_left,
88                          buffer, &outbytes_left);
89}
90
91int ap_rvputs_proto_in_ascii(request_rec *r, ...)
92{
93    va_list va;
94    const char *s;
95    char *ascii_s;
96    apr_size_t len;
97    apr_size_t written = 0;
98
99    va_start(va, r);
100    while (1) {
101        s = va_arg(va, const char *);
102        if (s == NULL)
103            break;
104        len = strlen(s);
105        ascii_s = apr_pstrmemdup(r->pool, s, len);
106        ap_xlate_proto_to_ascii(ascii_s, len);
107        if (ap_rputs(ascii_s, r) < 0)
108            return -1;
109        written += len;
110    }
111    va_end(va);
112
113    return written;
114}
115#endif /* APR_CHARSET_EBCDIC */
116