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Codechange: Use std::string in file scanners.

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This commit is contained in:
Michael Lutz
2020-12-06 21:11:50 +01:00
parent 358056ec42
commit b408fe77f7
16 changed files with 91 additions and 132 deletions
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38
src/fileio.cpp
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@@ -246,7 +246,7 @@ static_assert(lengthof(_subdirs) == NUM_SUBDIRS);
* current operating system.
*/
std::array<std::string, NUM_SEARCHPATHS> _searchpaths;
TarList _tar_list[NUM_SUBDIRS];
std::array<TarList, NUM_SUBDIRS> _tar_list;
TarFileList _tar_filelist[NUM_SUBDIRS];
typedef std::map<std::string, std::string> TarLinkList;
@@ -390,7 +390,7 @@ static FILE *FioFOpenFileSp(const std::string &filename, const char *mode, Searc
*/
FILE *FioFOpenFileTar(const TarFileListEntry &entry, size_t *filesize)
{
FILE *f = fopen(entry.tar_filename, "rb");
FILE *f = fopen(entry.tar_filename.c_str(), "rb");
if (f == nullptr) return f;
if (fseek(f, entry.position, SEEK_SET) < 0) {
@@ -613,16 +613,16 @@ uint TarScanner::DoScan(Subdirectory sd)
* @param filename The name of the file to add.
* @return True if the additions went correctly.
*/
bool TarScanner::AddFile(Subdirectory sd, const char *filename)
bool TarScanner::AddFile(Subdirectory sd, const std::string &filename)
{
this->subdir = sd;
return this->AddFile(filename, 0);
}
bool TarScanner::AddFile(const char *filename, size_t basepath_length, const char *tar_filename)
bool TarScanner::AddFile(const std::string &filename, size_t basepath_length, const std::string &tar_filename)
{
/* No tar within tar. */
assert(tar_filename == nullptr);
assert(tar_filename.empty());
/* The TAR-header, repeated for every file */
struct TarHeader {
@@ -650,16 +650,14 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
TarList::iterator it = _tar_list[this->subdir].find(filename);
if (it != _tar_list[this->subdir].end()) return false;
FILE *f = fopen(filename, "rb");
FILE *f = fopen(filename.c_str(), "rb");
/* Although the file has been found there can be
* a number of reasons we cannot open the file.
* Most common case is when we simply have not
* been given read access. */
if (f == nullptr) return false;
const char *dupped_filename = stredup(filename);
_tar_list[this->subdir][filename].filename = dupped_filename;
_tar_list[this->subdir][filename].dirname = nullptr;
_tar_list[this->subdir][filename] = std::string{};
TarLinkList links; ///< Temporary list to collect links
@@ -684,7 +682,7 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
/* If we have only zeros in the block, it can be an end-of-file indicator */
if (memcmp(&th, &empty[0], 512) == 0) continue;
DEBUG(misc, 0, "The file '%s' isn't a valid tar-file", filename);
DEBUG(misc, 0, "The file '%s' isn't a valid tar-file", filename.c_str());
fclose(f);
return false;
}
@@ -714,7 +712,7 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
/* Store this entry in the list */
TarFileListEntry entry;
entry.tar_filename = dupped_filename;
entry.tar_filename = filename;
entry.size = skip;
entry.position = pos;
@@ -782,7 +780,7 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
}
if (destpos >= lastof(dest)) {
DEBUG(misc, 0, "The length of a link in tar-file '%s' is too large (malformed?)", filename);
DEBUG(misc, 0, "The length of a link in tar-file '%s' is too large (malformed?)", filename.c_str());
fclose(f);
return false;
}
@@ -803,7 +801,7 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
/* Store the first directory name we detect */
DEBUG(misc, 6, "Found dir in tar: %s", name);
if (_tar_list[this->subdir][filename].dirname == nullptr) _tar_list[this->subdir][filename].dirname = stredup(name);
if (_tar_list[this->subdir][filename].empty()) _tar_list[this->subdir][filename] = name;
break;
default:
@@ -814,14 +812,14 @@ bool TarScanner::AddFile(const char *filename, size_t basepath_length, const cha
/* Skip to the next block.. */
skip = Align(skip, 512);
if (fseek(f, skip, SEEK_CUR) < 0) {
DEBUG(misc, 0, "The file '%s' can't be read as a valid tar-file", filename);
DEBUG(misc, 0, "The file '%s' can't be read as a valid tar-file", filename.c_str());
fclose(f);
return false;
}
pos += skip;
}
DEBUG(misc, 1, "Found tar '%s' with " PRINTF_SIZE " new files", filename, num);
DEBUG(misc, 1, "Found tar '%s' with " PRINTF_SIZE " new files", filename.c_str(), num);
fclose(f);
/* Resolve file links and store directory links.
@@ -855,10 +853,10 @@ bool ExtractTar(const std::string &tar_filename, Subdirectory subdir)
/* We don't know the file. */
if (it == _tar_list[subdir].end()) return false;
const char *dirname = (*it).second.dirname;
const auto &dirname = (*it).second;
/* The file doesn't have a sub directory! */
if (dirname == nullptr) {
if (dirname.empty()) {
DEBUG(misc, 1, "Extracting %s failed; archive rejected, the contents must be in a sub directory", tar_filename.c_str());
return false;
}
@@ -1308,7 +1306,7 @@ static uint ScanPath(FileScanner *fs, const char *extension, const char *path, s
num += ScanPath(fs, extension, filename.c_str(), basepath_length, recursive);
} else if (S_ISREG(sb.st_mode)) {
/* File */
if (MatchesExtension(extension, filename.c_str()) && fs->AddFile(filename.c_str(), basepath_length, nullptr)) num++;
if (MatchesExtension(extension, filename.c_str()) && fs->AddFile(filename, basepath_length, {})) num++;
}
}
@@ -1326,9 +1324,9 @@ static uint ScanPath(FileScanner *fs, const char *extension, const char *path, s
static uint ScanTar(FileScanner *fs, const char *extension, TarFileList::iterator tar)
{
uint num = 0;
const char *filename = (*tar).first.c_str();
const auto &filename = (*tar).first;
if (MatchesExtension(extension, filename) && fs->AddFile(filename, 0, (*tar).second.tar_filename)) num++;
if (MatchesExtension(extension, filename.c_str()) && fs->AddFile(filename, 0, (*tar).second.tar_filename)) num++;
return num;
}