Commit 2d969487 authored by Christopher Dykes's avatar Christopher Dykes Committed by Facebook Github Bot 8

Create the stdlib.h portability header

Summary: Windows doesn't have these functions under these names, so be nice to the code using it.

Reviewed By: yfeldblum

Differential Revision: D3003641

fb-gh-sync-id: 1657545af6975c96aea4a48c359250828b5921e0
fbshipit-source-id: 1657545af6975c96aea4a48c359250828b5921e0
parent 4e0a5b3a
......@@ -286,6 +286,7 @@ nobase_follyinclude_HEADERS = \
portability/Memory.h \
portability/PThread.h \
portability/Sockets.h \
portability/Stdlib.h \
portability/String.h \
portability/Syslog.h \
portability/SysFile.h \
......@@ -432,6 +433,7 @@ libfolly_la_SOURCES = \
portability/Malloc.cpp \
portability/Memory.cpp \
portability/Sockets.cpp \
portability/Stdlib.cpp \
portability/String.cpp \
portability/SysFile.cpp \
portability/SysMman.cpp \
......
/*
* Copyright 2016 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <folly/portability/Stdlib.h>
#ifdef _WIN32
#include <cstring>
#include <errno.h>
#include <folly/portability/Fcntl.h>
#include <folly/portability/SysStat.h>
#include <folly/portability/Windows.h>
extern "C" {
char* mktemp(char* tn) { return _mktemp(tn); }
// While yes, this is for a directory, due to this being windows,
// a file and directory can't have the same name, resulting in this
// still working just fine.
char* mkdtemp(char* tn) {
char* ptr = nullptr;
auto len = strlen(ptr);
int ret = 0;
do {
strcpy(tn + len - 6, "XXXXXX");
ptr = mktemp(tn);
if (ptr == nullptr || *ptr == '\0') {
return nullptr;
}
ret = mkdir(ptr, 0700);
if (ret != 0 && errno != EEXIST) {
return nullptr;
}
} while (ret != 0);
return tn;
}
int mkstemp(char* tn) {
char* ptr = nullptr;
auto len = strlen(ptr);
int ret = 0;
do {
strcpy(tn + len - 6, "XXXXXX");
ptr = mktemp(tn);
if (ptr == nullptr || *ptr == '\0') {
return -1;
}
ret = open(ptr, O_RDWR | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR);
if (ret == -1 && errno != EEXIST) {
return -1;
}
} while (ret == -1);
return ret;
}
char* realpath(const char* path, char* resolved_path) {
// I sure hope the caller gave us _MAX_PATH space in the buffer....
return _fullpath(resolved_path, path, _MAX_PATH);
}
}
#endif
/*
* Copyright 2016 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <cstdlib>
#ifdef _WIN32
// These are technically supposed to be defined linux/limits.h and
// sys/param.h respectively, but Windows defines _MAX_PATH in stdlib.h,
// so, instead of creating two headers for a single define each, we put
// them here, where they are likely to already have been included in the
// code that needs them.
#define PATH_MAX _MAX_PATH
#define MAXPATHLEN _MAX_PATH
extern "C" {
char* mktemp(char* tn);
char* mkdtemp(char* tn);
int mkstemp(char* tn);
char* realpath(const char* path, char* resolved_path);
}
#endif
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment