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
|
// Copyright 2024 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include <errno.h>
#include <fcntl.h>
#include <glob.h>
#include <string.h>
#include <unistd.h>
static std::vector<std::string> Glob(const std::string& pattern)
{
glob_t buf = {};
int res = glob(pattern.c_str(), GLOB_MARK | GLOB_NOSORT, nullptr, &buf);
if (res != 0 && res != GLOB_NOMATCH)
failmsg("glob failed", "pattern='%s' res=%d", pattern.c_str(), res);
std::vector<std::string> files;
for (size_t i = 0; i < buf.gl_pathc; i++) {
const char* file = buf.gl_pathv[i];
if (file[strlen(file) - 1] == '/')
continue;
files.push_back(file);
}
globfree(&buf);
return files;
}
static std::unique_ptr<rpc::FileInfoRawT> ReadFile(const std::string& file)
{
auto info = std::make_unique<rpc::FileInfoRawT>();
info->name = file;
int fd = open(file.c_str(), O_RDONLY);
if (fd == -1) {
info->exists = errno != EEXIST && errno != ENOENT;
info->error = strerror(errno);
} else {
info->exists = true;
for (;;) {
constexpr size_t kChunk = 4 << 10;
info->data.resize(info->data.size() + kChunk);
ssize_t n = read(fd, info->data.data() + info->data.size() - kChunk, kChunk);
if (n < 0) {
info->error = strerror(errno);
break;
}
info->data.resize(info->data.size() - kChunk + n);
if (n == 0)
break;
}
close(fd);
}
debug("reading file %s: size=%zu exists=%d error=%s\n",
info->name.c_str(), info->data.size(), info->exists, info->error.c_str());
return info;
}
static std::vector<std::unique_ptr<rpc::FileInfoRawT>> ReadFiles(const std::vector<std::string>& files)
{
std::vector<std::unique_ptr<rpc::FileInfoRawT>> results;
for (const auto& file : files) {
if (!strchr(file.c_str(), '*')) {
results.push_back(ReadFile(file));
continue;
}
for (const auto& match : Glob(file))
results.push_back(ReadFile(match));
}
return results;
}
static std::vector<std::unique_ptr<rpc::GlobInfoRawT>> ReadGlobs(const std::vector<std::string>& patterns)
{
std::vector<std::unique_ptr<rpc::GlobInfoRawT>> results;
for (const auto& pattern : patterns) {
auto info = std::make_unique<rpc::GlobInfoRawT>();
info->name = pattern;
info->files = Glob(pattern);
results.push_back(std::move(info));
}
return results;
}
|
