Stdlib.cpp File Reference

#include <folly/portability/Stdlib.h>
#include <string>
#include <vector>

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Functions
int	clearenv ()

Function Documentation

int clearenv

(

)

Definition at line 150 of file Stdlib.cpp.

References data, gmock_leak_test::environ, s, and string.

Referenced by folly::experimental::EnvironmentState::setAsCurrentEnvironment().

                          {
  std::vector<std::string> data;
  for (auto it = environ; it && *it; ++it) {
    std::string entry(*it);
    auto equalsPosition = entry.find('=');
    if (equalsPosition == std::string::npos || equalsPosition == 0) {
      // It's either a drive setting (if on Windows), or something clowny is
      // going on in the environment.
      continue;
    } else {
      data.emplace_back(entry.substr(0, equalsPosition));
    }
  }

  for (auto s : data) {
    if (unsetenv(s.c_str()) != 0)
      return -1;
  }

  return 0;
}