5123321399

Committed 30 May 2023 04:06PM UTC coverage: 92.213% (+0.004%) from 92.209%

Build # 5123321399

Build Type

Pull #3558

github

Committed by

web-flow

Commit Message

Merge dd72f7389 into 057bcbc35

Pull Request Pull Request #3558: Add braces around all if/else statements

Run Details

75602 of 81986 relevant lines covered (92.21%)

11859779.3 hits per line

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86.11

/src/lib/utils/data_src.cpp

/*
* DataSource
* (C) 1999-2007 Jack Lloyd
*     2005 Matthew Gregan
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/data_src.h>

#include <botan/exceptn.h>
#include <botan/internal/fmt.h>
#include <algorithm>
#include <istream>

#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
   #include <fstream>
#endif

namespace Botan {

/*
* Read a single byte from the DataSource
*/
size_t DataSource::read_byte(uint8_t& out) { return read(&out, 1); }

/*
* Peek a single byte from the DataSource
*/
size_t DataSource::peek_byte(uint8_t& out) const { return peek(&out, 1, 0); }

/*
* Discard the next N bytes of the data
*/
size_t DataSource::discard_next(size_t n) {
   uint8_t buf[64] = {0};
   size_t discarded = 0;

   while(n) {
      const size_t got = this->read(buf, std::min(n, sizeof(buf)));
      discarded += got;
      n -= got;

      if(got == 0) {
         break;
      }
   }

   return discarded;
}

/*
* Read from a memory buffer
*/
size_t DataSource_Memory::read(uint8_t out[], size_t length) {
   const size_t got = std::min<size_t>(m_source.size() - m_offset, length);
   copy_mem(out, m_source.data() + m_offset, got);
   m_offset += got;
   return got;
}

bool DataSource_Memory::check_available(size_t n) { return (n <= (m_source.size() - m_offset)); }

/*
* Peek into a memory buffer
*/
size_t DataSource_Memory::peek(uint8_t out[], size_t length, size_t peek_offset) const {
   const size_t bytes_left = m_source.size() - m_offset;
   if(peek_offset >= bytes_left) {
      return 0;
   }

   const size_t got = std::min(bytes_left - peek_offset, length);
   copy_mem(out, &m_source[m_offset + peek_offset], got);
   return got;
}

/*
* Check if the memory buffer is empty
*/
bool DataSource_Memory::end_of_data() const { return (m_offset == m_source.size()); }

/*
* DataSource_Memory Constructor
*/
DataSource_Memory::DataSource_Memory(std::string_view in) :
      m_source(cast_char_ptr_to_uint8(in.data()), cast_char_ptr_to_uint8(in.data()) + in.length()), m_offset(0) {}

/*
* Read from a stream
*/
size_t DataSource_Stream::read(uint8_t out[], size_t length) {
   m_source.read(cast_uint8_ptr_to_char(out), length);
   if(m_source.bad()) {
      throw Stream_IO_Error("DataSource_Stream::read: Source failure");
   }

   const size_t got = static_cast<size_t>(m_source.gcount());
   m_total_read += got;
   return got;
}

bool DataSource_Stream::check_available(size_t n) {
   const std::streampos orig_pos = m_source.tellg();
   m_source.seekg(0, std::ios::end);
   const size_t avail = static_cast<size_t>(m_source.tellg() - orig_pos);
   m_source.seekg(orig_pos);
   return (avail >= n);
}

/*
* Peek into a stream
*/
size_t DataSource_Stream::peek(uint8_t out[], size_t length, size_t offset) const {
   if(end_of_data()) {
      throw Invalid_State("DataSource_Stream: Cannot peek when out of data");
   }

   size_t got = 0;

   if(offset) {
      secure_vector<uint8_t> buf(offset);
      m_source.read(cast_uint8_ptr_to_char(buf.data()), buf.size());
      if(m_source.bad()) {
         throw Stream_IO_Error("DataSource_Stream::peek: Source failure");
      }
      got = static_cast<size_t>(m_source.gcount());
   }

   if(got == offset) {
      m_source.read(cast_uint8_ptr_to_char(out), length);
      if(m_source.bad()) {
         throw Stream_IO_Error("DataSource_Stream::peek: Source failure");
      }
      got = static_cast<size_t>(m_source.gcount());
   }

   if(m_source.eof()) {
      m_source.clear();
   }
   m_source.seekg(m_total_read, std::ios::beg);

   return got;
}

/*
* Check if the stream is empty or in error
*/
bool DataSource_Stream::end_of_data() const { return (!m_source.good()); }

/*
* Return a human-readable ID for this stream
*/
std::string DataSource_Stream::id() const { return m_identifier; }

#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

/*
* DataSource_Stream Constructor
*/
DataSource_Stream::DataSource_Stream(std::string_view path, bool use_binary) :
      m_identifier(path),
      m_source_memory(std::make_unique<std::ifstream>(std::string(path), use_binary ? std::ios::binary : std::ios::in)),
      m_source(*m_source_memory),
      m_total_read(0) {
   if(!m_source.good()) {
      throw Stream_IO_Error(fmt("DataSource: Failure opening file '{}'", path));
   }
}

#endif

/*
* DataSource_Stream Constructor
*/
DataSource_Stream::DataSource_Stream(std::istream& in, std::string_view name) :
      m_identifier(name), m_source(in), m_total_read(0) {}

DataSource_Stream::~DataSource_Stream() = default;

}  // namespace Botan

1	/*
2	* DataSource
3	* (C) 1999-2007 Jack Lloyd
4	* 2005 Matthew Gregan
5	*
6	* Botan is released under the Simplified BSD License (see license.txt)
7	*/
8
9	#include <botan/data_src.h>
10
11	#include <botan/exceptn.h>
12	#include <botan/internal/fmt.h>
13	#include <algorithm>
14	#include <istream>
15
16	#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
17	#include <fstream>
18	#endif
19
20	namespace Botan {
21
22	/*
23	* Read a single byte from the DataSource
24	*/
25	size_t DataSource::read_byte(uint8_t& out) { return read(&out, 1); }	46,887,974✔
26
27	/*
28	* Peek a single byte from the DataSource
29	*/
30	size_t DataSource::peek_byte(uint8_t& out) const { return peek(&out, 1, 0); }	41,763✔
31
32	/*
33	* Discard the next N bytes of the data
34	*/
35	size_t DataSource::discard_next(size_t n) {	673,989✔
36	uint8_t buf[64] = {0};	673,989✔
37	size_t discarded = 0;	673,989✔
38
39	while(n) {	1,372,762✔
40	const size_t got = this->read(buf, std::min(n, sizeof(buf)));	959,616✔
41	discarded += got;	703,358✔
42	n -= got;	703,358✔
43
44	if(got == 0) {	703,358✔
45	break;
46	}
47	}
48
49	return discarded;	673,989✔
50	}
51
52	/*
53	* Read from a memory buffer
54	*/
55	size_t DataSource_Memory::read(uint8_t out[], size_t length) {	23,460,314✔
56	const size_t got = std::min<size_t>(m_source.size() - m_offset, length);	23,460,314✔
57	copy_mem(out, m_source.data() + m_offset, got);	23,460,314✔
58	m_offset += got;	23,460,314✔
59	return got;	23,460,314✔
60	}
61
62	bool DataSource_Memory::check_available(size_t n) { return (n <= (m_source.size() - m_offset)); }	5,463,836✔
63
64	/*
65	* Peek into a memory buffer
66	*/
67	size_t DataSource_Memory::peek(uint8_t out[], size_t length, size_t peek_offset) const {	464,346✔
68	const size_t bytes_left = m_source.size() - m_offset;	464,346✔
69	if(peek_offset >= bytes_left) {	464,346✔
70	return 0;
71	}
72
73	const size_t got = std::min(bytes_left - peek_offset, length);	270,809✔
74	copy_mem(out, &m_source[m_offset + peek_offset], got);	270,809✔
75	return got;	270,809✔
76	}
77
78	/*
79	* Check if the memory buffer is empty
80	*/
81	bool DataSource_Memory::end_of_data() const { return (m_offset == m_source.size()); }	917,833✔
82
83	/*
84	* DataSource_Memory Constructor
85	*/
86	DataSource_Memory::DataSource_Memory(std::string_view in) :	2,464✔
87	m_source(cast_char_ptr_to_uint8(in.data()), cast_char_ptr_to_uint8(in.data()) + in.length()), m_offset(0) {}	2,464✔
88
89	/*
90	* Read from a stream
91	*/
92	size_t DataSource_Stream::read(uint8_t out[], size_t length) {	12,205,058✔
93	m_source.read(cast_uint8_ptr_to_char(out), length);	12,205,058✔
94	if(m_source.bad()) {	12,205,058✔
95	throw Stream_IO_Error("DataSource_Stream::read: Source failure");	×
96	}
97
98	const size_t got = static_cast<size_t>(m_source.gcount());	12,205,058✔
99	m_total_read += got;	12,205,058✔
100	return got;	12,205,058✔
101	}
102
103	bool DataSource_Stream::check_available(size_t n) {	730✔
104	const std::streampos orig_pos = m_source.tellg();	730✔
105	m_source.seekg(0, std::ios::end);	730✔
106	const size_t avail = static_cast<size_t>(m_source.tellg() - orig_pos);	730✔
107	m_source.seekg(orig_pos);	730✔
108	return (avail >= n);	730✔
109	}
110
111	/*
112	* Peek into a stream
113	*/
114	size_t DataSource_Stream::peek(uint8_t out[], size_t length, size_t offset) const {	5,451✔
115	if(end_of_data()) {	5,451✔
116	throw Invalid_State("DataSource_Stream: Cannot peek when out of data");	×
117	}
118
119	size_t got = 0;	5,451✔
120
121	if(offset) {	5,451✔
122	secure_vector<uint8_t> buf(offset);	×
123	m_source.read(cast_uint8_ptr_to_char(buf.data()), buf.size());	×
124	if(m_source.bad()) {	×
125	throw Stream_IO_Error("DataSource_Stream::peek: Source failure");	×
126	}
127	got = static_cast<size_t>(m_source.gcount());	×
128	}	×
129
130	if(got == offset) {	5,451✔
131	m_source.read(cast_uint8_ptr_to_char(out), length);	5,451✔
132	if(m_source.bad()) {	5,451✔
133	throw Stream_IO_Error("DataSource_Stream::peek: Source failure");	×
134	}
135	got = static_cast<size_t>(m_source.gcount());	5,451✔
136	}
137
138	if(m_source.eof()) {	5,451✔
139	m_source.clear();	930✔
140	}
141	m_source.seekg(m_total_read, std::ios::beg);	5,451✔
142
143	return got;	5,451✔
144	}
145
146	/*
147	* Check if the stream is empty or in error
148	*/
149	bool DataSource_Stream::end_of_data() const { return (!m_source.good()); }	14,658✔
150
151	/*
152	* Return a human-readable ID for this stream
153	*/
154	std::string DataSource_Stream::id() const { return m_identifier; }	×
155
156	#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
157
158	/*
159	* DataSource_Stream Constructor
160	*/
161	DataSource_Stream::DataSource_Stream(std::string_view path, bool use_binary) :	3,443✔
162	m_identifier(path),	3,443✔
163	m_source_memory(std::make_unique<std::ifstream>(std::string(path), use_binary ? std::ios::binary : std::ios::in)),	9,023✔
164	m_source(*m_source_memory),	3,443✔
165	m_total_read(0) {	3,443✔
166	if(!m_source.good()) {	3,443✔
167	throw Stream_IO_Error(fmt("DataSource: Failure opening file '{}'", path));	2✔
168	}
169	}	3,444✔
170
171	#endif
172
173	/*
174	* DataSource_Stream Constructor
175	*/
176	DataSource_Stream::DataSource_Stream(std::istream& in, std::string_view name) :	1✔
177	m_identifier(name), m_source(in), m_total_read(0) {}	1✔
178
179	DataSource_Stream::~DataSource_Stream() = default;	6,885✔
180
181	} // namespace Botan

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