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#include "tempfile.h"
#include <util/folder/dirut.h>
#include <util/generic/yexception.h>
#include <cstring>
#ifdef _win32_
#include "winint.h"
#include <io.h>
#else
#include <unistd.h>
#endif
extern "C" int mkstemps(char* path, int slen);
TString MakeTempName(const char* wrkDir, const char* prefix, const char* extension) {
TString filePath;
if (wrkDir && *wrkDir) {
filePath += wrkDir;
} else {
filePath += GetSystemTempDir();
}
#ifdef _win32_
// https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-gettempfilenamea?redirectedfrom=MSDN
const unsigned int DirPathMaxLen = 247;
if (filePath.length() <= DirPathMaxLen) {
// it always takes up to 3 characters, no more
char winFilePath[MAX_PATH];
if (GetTempFileName(filePath.c_str(), (prefix) ? (prefix) : "yan", 0,
winFilePath)) {
return winFilePath;
}
}
#endif // _win32_
if (filePath.back() != '/') {
filePath += '/';
}
if (prefix) {
filePath += prefix;
}
filePath += "XXXXXX"; // mkstemps requirement
size_t extensionPartLength = 0;
if (extension && *extension) {
if (extension[0] != '.') {
filePath += '.';
extensionPartLength += 1;
}
filePath += extension;
extensionPartLength += strlen(extension);
}
int fd = mkstemps(const_cast<char*>(filePath.data()), extensionPartLength);
if (fd >= 0) {
close(fd);
return filePath;
}
ythrow TSystemError() << "can not create temp name(" << wrkDir << ", " << prefix << ", " << extension << ")";
}
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