OpenSystemsDevelopment / qpdf

Commit 4ee6ff0a738374290a79ba280be44c01e33354cf

Authored by m-holger
1 parent 4359de90

Add new procedure QUtil::read_file_into_string

Inline Side-by-side
Showing 5 changed files with 45 additions and 4 deletions
include/qpdf/QUtil.hh
  View file @4ee6ff0
... ... @@ -485,6 +485,11 @@ namespace QUtil
485 485 void read_file_into_memory(
486 486 char const* filename, std::shared_ptr<char>& file_buf, size_t& size);
487 487  
  488 + QPDF_DLL
  489 + std::string read_file_into_string(char const* filename);
  490 + QPDF_DLL
  491 + std::string read_file_into_string(FILE* f, std::string_view filename = "");
  492 +
488 493 // This used to be called strcasecmp, but that is a macro on some
489 494 // platforms, so we have to give it a name that is not likely to
490 495 // be a macro anywhere.
... ...
libqpdf/QPDFJob_config.cc
  View file @4ee6ff0
... ... @@ -760,11 +760,9 @@ QPDFJob::Config::showObject(std::string const&amp; parameter)
760 760 QPDFJob::Config*
761 761 QPDFJob::Config::jobJsonFile(std::string const& parameter)
762 762 {
763   - std::shared_ptr<char> file_buf;
764   - size_t size;
765   - QUtil::read_file_into_memory(parameter.c_str(), file_buf, size);
766 763 try {
767   - o.initializeFromJson(std::string(file_buf.get(), size), true);
  764 + o.initializeFromJson(
  765 + QUtil::read_file_into_string(parameter.c_str()), true);
768 766 } catch (std::exception& e) {
769 767 throw std::runtime_error(
770 768 "error with job-json file " + std::string(parameter) + ": " +
... ...
libqpdf/QUtil.cc
  View file @4ee6ff0
... ... @@ -1243,6 +1243,37 @@ QUtil::read_file_into_memory(
1243 1243 }
1244 1244 }
1245 1245  
  1246 +std::string
  1247 +QUtil::read_file_into_string(char const* filename)
  1248 +{
  1249 + FILE* f = safe_fopen(filename, "rb");
  1250 + FileCloser fc(f);
  1251 + return read_file_into_string(f, filename);
  1252 +}
  1253 +
  1254 +std::string
  1255 +QUtil::read_file_into_string(FILE* f, std::string_view filename)
  1256 +{
  1257 + fseek(f, 0, SEEK_END);
  1258 + auto size = QIntC::to_size(QUtil::tell(f));
  1259 + fseek(f, 0, SEEK_SET);
  1260 + std::string result(size, '\0');
  1261 + if (auto read = fread(result.data(), 1, size, f); read != size) {
  1262 + if (ferror(f)) {
  1263 + throw std::runtime_error(
  1264 + std::string("failure reading file ") + std::string(filename) +
  1265 + " into memory: read " + uint_to_string(read) + "; wanted " +
  1266 + uint_to_string(size));
  1267 + } else {
  1268 + throw std::runtime_error(
  1269 + std::string("premature eof reading file ") +
  1270 + std::string(filename) + " into memory: read " +
  1271 + uint_to_string(read) + "; wanted " + uint_to_string(size));
  1272 + }
  1273 + }
  1274 + return result;
  1275 +}
  1276 +
1246 1277 static bool
1247 1278 read_char_from_FILE(char& ch, FILE* f)
1248 1279 {
... ...
libtests/qtest/qutil/qutil.out
  View file @4ee6ff0
... ... @@ -116,6 +116,7 @@ This file is used for qutil testing.
116 116 It has mixed newlines.
117 117 Some lines are very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very 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very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very 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very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very 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very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very very long.
118 118 read 24652 bytes
  119 +read 24652 bytes
119 120 ---- hex encode/decode
120 121 begin hex encode/decode
121 122 end hex encode/decode
... ...
libtests/qutil.cc
  View file @4ee6ff0
... ... @@ -576,6 +576,12 @@ read_from_file_test()
576 576 auto buf2 = b2.getBufferSharedPointer();
577 577 assert(buf2->getSize() == size);
578 578 assert(memcmp(buf2->getBuffer(), p, size) == 0);
  579 +
  580 + auto s = QUtil::read_file_into_string("other-file");
  581 + std::cout << "read " << s.size() << " bytes" << std::endl;
  582 + assert(s.size() == 24652);
  583 + assert(s.substr(0, 36) == "This file is used for qutil testing.");
  584 + assert(s.substr(24641, 10) == "very long.");
579 585 }
580 586  
581 587 void
... ...