summaryrefslogtreecommitdiffstats
path: root/nss_util.c
blob: 2a5b91cca2c04ea6d443998dba22ab7d2b0bdae0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/* Copyright 2001-2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#include "mod_nss.h"
#include "ap_mpm.h"
#include "apr_thread_mutex.h"

/*  _________________________________________________________________
**
**  Utility Functions
**  _________________________________________________________________
*/

char *nss_util_vhostid(apr_pool_t *p, server_rec *s)
{
    char *id;
    SSLSrvConfigRec *sc;
    char *host;
    apr_port_t port;

    host = s->server_hostname;
    if (s->port != 0)
        port = s->port;
    else {
        sc = mySrvConfig(s);
        if (sc->enabled)
            port = DEFAULT_HTTPS_PORT;
        else
            port = DEFAULT_HTTP_PORT;
    }
    id = apr_psprintf(p, "%s:%lu", host, (unsigned long)port);
    return id;
}

void nss_util_strupper(char *s)
{
    for (; *s; ++s)
        *s = apr_toupper(*s);
    return;
}

static const char nss_util_uuencode_six2pr[64+1] =
    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

void nss_util_uuencode(char *szTo, const char *szFrom, BOOL bPad)
{
    nss_util_uuencode_binary((unsigned char *)szTo,
                             (const unsigned char *)szFrom,
                             strlen(szFrom), bPad);
}

void nss_util_uuencode_binary(unsigned char *szTo,
                              const unsigned char *szFrom,
                              int nLength, BOOL bPad)
{
    const unsigned char *s;
    int nPad = 0;

    for (s = szFrom; nLength > 0; s += 3) {
        *szTo++ = nss_util_uuencode_six2pr[s[0] >> 2];
        *szTo++ = nss_util_uuencode_six2pr[(s[0] << 4 | s[1] >> 4) & 0x3f];
        if (--nLength == 0) {
            nPad = 2;
            break;
        }
        *szTo++ = nss_util_uuencode_six2pr[(s[1] << 2 | s[2] >> 6) & 0x3f];
        if (--nLength == 0) {
            nPad = 1;
            break;
        }
        *szTo++ = nss_util_uuencode_six2pr[s[2] & 0x3f];
        --nLength;
    }
    while(bPad && nPad--) {
        *szTo++ = NUL;
    }
    *szTo = NUL;
    return;
}

apr_file_t *nss_util_ppopen(server_rec *s, apr_pool_t *p, const char *cmd,
                            const char * const *argv)
{
    apr_procattr_t *procattr;
    apr_proc_t *proc;

    if (apr_procattr_create(&procattr, p) != APR_SUCCESS) 
        return NULL;
    if (apr_procattr_io_set(procattr, APR_FULL_BLOCK, APR_FULL_BLOCK, 
                            APR_FULL_BLOCK) != APR_SUCCESS)
        return NULL;
    if (apr_procattr_dir_set(procattr, 
                             ap_make_dirstr_parent(p, cmd)) != APR_SUCCESS)
        return NULL;
    if (apr_procattr_cmdtype_set(procattr, APR_PROGRAM) != APR_SUCCESS)
        return NULL;
    if ((proc = (apr_proc_t *)apr_pcalloc(p, sizeof(apr_proc_t))) == NULL)
        return NULL;
    if (apr_proc_create(proc, cmd, argv, NULL, procattr, p) != APR_SUCCESS)
        return NULL;
    return proc->out;
}

void nss_util_ppclose(server_rec *s, apr_pool_t *p, apr_file_t *fp)
{
    apr_file_close(fp);
    return;
}

/*
 * Run a filter program and read the first line of its stdout output
 */
char *nss_util_readfilter(server_rec *s, apr_pool_t *p, const char *cmd,
                          const char * const *argv)
{
    static char buf[MAX_STRING_LEN];
    apr_file_t *fp;
    apr_size_t nbytes = 1;
    char c;
    int k;

    if ((fp = nss_util_ppopen(s, p, cmd, argv)) == NULL)
        return NULL;
    /* XXX: we are reading 1 byte at a time here */
    for (k = 0; apr_file_read(fp, &c, &nbytes) == APR_SUCCESS
                && nbytes == 1 && (k < MAX_STRING_LEN-1)     ; ) {
        if (c == '\n' || c == '\r')
            break;
        buf[k++] = c;
    }
    buf[k] = NUL;
    nss_util_ppclose(s, p, fp);

    return buf;
}