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1 /*
2  *
3  * Copyright 2015 gRPC authors.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 
19 #include <php.h>
20 
21 // The include file must place here under <php.h> for fixing compile error.
22 // See: https://github.com/grpc/grpc/pull/12360#issuecomment-326484589
23 #include "byte_buffer.h"
24 
25 #include <grpc/byte_buffer_reader.h>
26 
string_to_byte_buffer(char * string,size_t length)27 grpc_byte_buffer *string_to_byte_buffer(char *string, size_t length) {
28   grpc_slice slice = grpc_slice_from_copied_buffer(string, length);
29   grpc_byte_buffer *buffer = grpc_raw_byte_buffer_create(&slice, 1);
30   grpc_slice_unref(slice);
31   return buffer;
32 }
33 
byte_buffer_to_string(grpc_byte_buffer * buffer,char ** out_string,size_t * out_length)34 void byte_buffer_to_string(grpc_byte_buffer *buffer, char **out_string,
35                            size_t *out_length) {
36   grpc_byte_buffer_reader reader;
37   if (buffer == NULL || !grpc_byte_buffer_reader_init(&reader, buffer)) {
38     /* TODO(dgq): distinguish between the error cases. */
39     *out_string = NULL;
40     *out_length = 0;
41     return;
42   }
43 
44   grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
45   size_t length = GRPC_SLICE_LENGTH(slice);
46   char *string = ecalloc(length + 1, sizeof(char));
47   memcpy(string, GRPC_SLICE_START_PTR(slice), length);
48   grpc_slice_unref(slice);
49 
50   *out_string = string;
51   *out_length = length;
52 }
53