xref: /aoo4110/main/shell/source/unix/misc/uri-encode.c (revision b1cdbd2c)
1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski  *
3*b1cdbd2cSJim Jagielski  * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski  * or more contributor license agreements.  See the NOTICE file
5*b1cdbd2cSJim Jagielski  * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski  * regarding copyright ownership.  The ASF licenses this file
7*b1cdbd2cSJim Jagielski  * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski  * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski  * with the License.  You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski  *
11*b1cdbd2cSJim Jagielski  *   http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski  *
13*b1cdbd2cSJim Jagielski  * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski  * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski  * KIND, either express or implied.  See the License for the
17*b1cdbd2cSJim Jagielski  * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski  * under the License.
19*b1cdbd2cSJim Jagielski  *
20*b1cdbd2cSJim Jagielski  *************************************************************/
21*b1cdbd2cSJim Jagielski 
22*b1cdbd2cSJim Jagielski 
23*b1cdbd2cSJim Jagielski 
24*b1cdbd2cSJim Jagielski #include <ctype.h>
25*b1cdbd2cSJim Jagielski #include <errno.h>
26*b1cdbd2cSJim Jagielski #include <stdio.h>
27*b1cdbd2cSJim Jagielski #include <stdlib.h>
28*b1cdbd2cSJim Jagielski #include <string.h>
29*b1cdbd2cSJim Jagielski 
main()30*b1cdbd2cSJim Jagielski int main() {
31*b1cdbd2cSJim Jagielski     for (;;) {
32*b1cdbd2cSJim Jagielski         int c;
33*b1cdbd2cSJim Jagielski         errno = 0;
34*b1cdbd2cSJim Jagielski         c = getchar();
35*b1cdbd2cSJim Jagielski         if (c == EOF) {
36*b1cdbd2cSJim Jagielski             exit(errno == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
37*b1cdbd2cSJim Jagielski         } else if (isalnum(c) || strchr("!$'()*+,-.:=@_~/\n", c) != NULL) {
38*b1cdbd2cSJim Jagielski             /* valid RFC 2396 pchar characters + '/' + newline */
39*b1cdbd2cSJim Jagielski             if (putchar(c) == EOF) {
40*b1cdbd2cSJim Jagielski                 exit(EXIT_FAILURE);
41*b1cdbd2cSJim Jagielski             }
42*b1cdbd2cSJim Jagielski         } else if (printf("%%%02X", (unsigned char) (char) c) < 0) {
43*b1cdbd2cSJim Jagielski             exit(EXIT_FAILURE);
44*b1cdbd2cSJim Jagielski         }
45*b1cdbd2cSJim Jagielski     }
46*b1cdbd2cSJim Jagielski }
47