validate canons without yatest_common

1 files changed, 70 insertions, 0 deletions

diff --git a/library/cpp/deprecated/fgood/fgood.cpp b/library/cpp/deprecated/fgood/fgood.cpp
new file mode 100644
index 00000000000..5d4725bfae2
--- /dev/null
+++ b/library/cpp/deprecated/fgood/fgood.cpp
@@ -0,0 +1,70 @@
+#include "fgood.h"
+
+#include <util/generic/cast.h>
+#include <util/string/cast.h>
+#include <util/system/fstat.h>
+
+#ifdef _win32_
+#include <io.h>
+#endif
+
+i64 TFILEPtr::length() const {
+#ifdef _win32_
+    FHANDLE fd = (FHANDLE)_get_osfhandle(fileno(m_file));
+#else
+    FHANDLE fd = fileno(m_file);
+#endif
+    i64 rv = GetFileLength(fd);
+    if (rv < 0)
+        ythrow yexception() << "TFILEPtr::length() " << Name.data() << ": " << LastSystemErrorText();
+    return rv;
+}
+
+FILE* OpenFILEOrFail(const TString& name, const char* mode) {
+    FILE* res = ::fopen(name.data(), mode);
+    if (!res) {
+        ythrow yexception() << "can't open \'" << name << "\' with mode \'" << mode << "\': " << LastSystemErrorText();
+    }
+    return res;
+}
+
+void TFILECloser::Destroy(FILE* file) {
+    ::fclose(file);
+}
+
+#ifdef _freebsd_ // fgetln
+#define getline getline_alt_4test
+#endif // _freebsd_
+
+bool getline(TFILEPtr& f, TString& s) {
+    char buf[4096];
+    char* buf_ptr;
+    if (s.capacity() > sizeof(buf)) {
+        s.resize(s.capacity());
+        if ((buf_ptr = fgets(s.begin(), IntegerCast<int>(s.capacity()), f)) == nullptr)
+            return false;
+    } else {
+        if ((buf_ptr = fgets(buf, sizeof(buf), f)) == nullptr)
+            return false;
+    }
+    size_t buf_len = strlen(buf_ptr);
+    bool line_complete = buf_len && buf_ptr[buf_len - 1] == '\n';
+    if (line_complete)
+        buf_len--;
+    if (buf_ptr == s.begin())
+        s.resize(buf_len);
+    else
+        s.AssignNoAlias(buf, buf_len);
+    if (line_complete)
+        return true;
+    while (fgets(buf, sizeof(buf), f)) {
+        size_t buf_len2 = strlen(buf);
+        if (buf_len2 && buf[buf_len2 - 1] == '\n') {
+            buf[buf_len2 - 1] = 0;
+            s.append(buf, buf_len2 - 1);
+            return true;
+        }
+        s.append(buf, buf_len2);
+    }
+    return true;
+}