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/*
* OpenSlide, a library for reading whole slide image files
*
* Copyright (c) 2007-2014 Carnegie Mellon University
* All rights reserved.
*
* OpenSlide is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, version 2.1.
*
* OpenSlide is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with OpenSlide. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#ifdef WIN32
#define _WIN32_WINNT 0x0600
#include <windows.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <glib.h>
#ifdef F_GETPATH
// Mac OS X: MAXPATHLEN
#include <sys/param.h>
#endif
#include "test-common.h"
char *get_fd_path(int fd) {
struct stat st;
char *path = NULL;
if (fstat(fd, &st)) {
return NULL;
}
#if defined WIN32
// Windows
HANDLE hdl = (HANDLE) _get_osfhandle(fd);
if (hdl != INVALID_HANDLE_VALUE) {
DWORD size = GetFinalPathNameByHandle(hdl, NULL, 0, 0);
if (size) {
path = g_malloc(size);
DWORD ret = GetFinalPathNameByHandle(hdl, path, size - 1, 0);
if (!ret || ret > size) {
g_free(path);
path = NULL;
}
}
}
#elif defined F_GETPATH
// Mac OS X
path = g_malloc(MAXPATHLEN);
if (fcntl(fd, F_GETPATH, path)) {
g_free(path);
path = NULL;
}
#else
// Fallback; works only on Linux
char *link_path = g_strdup_printf("/proc/%d/fd/%d", getpid(), fd);
path = g_file_read_link(link_path, NULL);
g_free(link_path);
#endif
if (!path) {
path = g_strdup("<unknown>");
}
return path;
}
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