diff options
Diffstat (limited to 'src/common/util.cpp')
| -rw-r--r-- | src/common/util.cpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/common/util.cpp b/src/common/util.cpp index 2a1d49af0..f91230528 100644 --- a/src/common/util.cpp +++ b/src/common/util.cpp @@ -28,6 +28,7 @@ // // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers +#include <unistd.h> #include <cstdio> #ifdef __GLIBC__ @@ -233,7 +234,7 @@ namespace tools MERROR("Failed to open " << filename << ": " << std::error_code(GetLastError(), std::system_category())); } #else - m_fd = open(filename.c_str(), O_RDONLY | O_CREAT, 0666); + m_fd = open(filename.c_str(), O_RDONLY | O_CREAT | O_CLOEXEC, 0666); if (m_fd != -1) { if (flock(m_fd, LOCK_EX | LOCK_NB) == -1) @@ -967,4 +968,23 @@ std::string get_nix_version_display_string() } #endif + void closefrom(int fd) + { +#if defined __FreeBSD__ || defined __OpenBSD__ || defined __NetBSD__ || defined __DragonFly__ + ::closefrom(fd); +#else +#if defined __GLIBC__ + const int sc_open_max = sysconf(_SC_OPEN_MAX); + const int MAX_FDS = std::min(65536, sc_open_max); +#else + const int MAX_FDS = 65536; +#endif + while (fd < MAX_FDS) + { + close(fd); + ++fd; + } +#endif + } + } |