Coverage Report

Created: 2023-03-26 06:28

/src/httpd/srclib/apr/file_io/unix/fullrw.c
Line
Count
Source (jump to first uncovered line)
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 "apr_file_io.h"
18
19
20
APR_DECLARE(apr_status_t) apr_file_read_full(apr_file_t *thefile, void *buf,
21
                                             apr_size_t nbytes,
22
                                             apr_size_t *bytes_read)
23
0
{
24
0
    apr_status_t status;
25
0
    apr_size_t total_read = 0;
26
27
0
    do {
28
0
  apr_size_t amt = nbytes;
29
30
0
  status = apr_file_read(thefile, buf, &amt);
31
0
  buf = (char *)buf + amt;
32
0
        nbytes -= amt;
33
0
        total_read += amt;
34
0
    } while (status == APR_SUCCESS && nbytes > 0);
35
36
0
    if (bytes_read != NULL)
37
0
        *bytes_read = total_read;
38
39
0
    return status;
40
0
}
41
42
APR_DECLARE(apr_status_t) apr_file_write_full(apr_file_t *thefile,
43
                                              const void *buf,
44
                                              apr_size_t nbytes,
45
                                              apr_size_t *bytes_written)
46
0
{
47
0
    apr_status_t status;
48
0
    apr_size_t total_written = 0;
49
50
0
    do {
51
0
  apr_size_t amt = nbytes;
52
53
0
  status = apr_file_write(thefile, buf, &amt);
54
0
  buf = (char *)buf + amt;
55
0
        nbytes -= amt;
56
0
        total_written += amt;
57
0
    } while (status == APR_SUCCESS && nbytes > 0);
58
59
0
    if (bytes_written != NULL)
60
0
        *bytes_written = total_written;
61
62
0
    return status;
63
0
}
64
65
APR_DECLARE(apr_status_t) apr_file_writev_full(apr_file_t *thefile,
66
                                               const struct iovec *vec,
67
                                               apr_size_t nvec,
68
                                               apr_size_t *bytes_written)
69
0
{
70
0
    apr_status_t rv = APR_SUCCESS;
71
0
    apr_size_t i;
72
0
    apr_size_t amt = 0;
73
0
    apr_size_t total = 0;
74
75
0
    for (i = 0; i < nvec; i++) {
76
0
        total += vec[i].iov_len;
77
0
    }
78
79
0
    rv = apr_file_writev(thefile, vec, nvec, &amt);
80
81
0
    if (bytes_written != NULL)
82
0
        *bytes_written = amt;
83
84
0
    if (rv != APR_SUCCESS || (amt == total)) {
85
0
        return rv;
86
0
    }
87
88
0
    for (i = 0; i < nvec && amt; i++) {
89
0
        if (amt >= vec[i].iov_len) {
90
0
            amt -= vec[i].iov_len;
91
0
        }
92
0
        else {
93
0
            break;
94
0
        }
95
0
    }
96
97
0
    if (amt) {
98
0
        rv = apr_file_write_full(thefile, (const char *)vec[i].iov_base + amt,
99
0
                                 vec[i].iov_len - amt, NULL);
100
0
    }
101
102
0
    for (; i < nvec && rv == APR_SUCCESS; i++) {
103
0
        rv = apr_file_write_full(thefile, vec[i].iov_base,
104
0
                                 vec[i].iov_len, &amt);
105
0
    }
106
107
0
    if (bytes_written != NULL)
108
0
        *bytes_written = total;
109
110
0
    return rv;
111
0
}