/*
This file is part of GNUnet.
- (C) 2001--2012 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2001--2013, 2016, 2018 GNUnet e.V.
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet 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
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Affero General Public License for more details.
*/
-
/**
* @file util/disk.c
* @brief disk IO convenience methods
* @author Christian Grothoff
* @author Nils Durner
*/
-
#include "platform.h"
-#include "gnunet_common.h"
-#include "gnunet_directories.h"
-#include "gnunet_disk_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_strings_lib.h"
-#include "gnunet_crypto_lib.h"
#include "disk.h"
+#include "gnunet_strings_lib.h"
+#include "gnunet_disk_lib.h"
-#define LOG(kind,...) GNUNET_log_from (kind, "util", __VA_ARGS__)
+#define LOG(kind,...) GNUNET_log_from (kind, "util-disk", __VA_ARGS__)
-#define LOG_STRERROR(kind,syscall) GNUNET_log_from_strerror (kind, "util", syscall)
+#define LOG_STRERROR(kind,syscall) GNUNET_log_from_strerror (kind, "util-disk", syscall)
-#define LOG_STRERROR_FILE(kind,syscall,filename) GNUNET_log_from_strerror_file (kind, "util", syscall, filename)
+#define LOG_STRERROR_FILE(kind,syscall,filename) GNUNET_log_from_strerror_file (kind, "util-disk", syscall, filename)
/**
* Block size for IO for copying files.
*/
#define COPY_BLK_SIZE 65536
-
-
-#if defined(LINUX) || defined(CYGWIN) || defined(GNU)
+#include <sys/types.h>
+#if HAVE_SYS_VFS_H
#include <sys/vfs.h>
-#else
-#if defined(SOMEBSD) || defined(DARWIN)
+#endif
+#if HAVE_SYS_PARAM_H
#include <sys/param.h>
+#endif
+#if HAVE_SYS_MOUNT_H
#include <sys/mount.h>
-#else
-#ifdef SOLARIS
-#include <sys/types.h>
+#endif
+#if HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
-#else
-#ifdef MINGW
-#ifndef PIPE_BUF
-#define PIPE_BUF 512
-ULONG PipeSerialNumber;
#endif
+
+#ifndef S_ISLNK
#define _IFMT 0170000 /* type of file */
#define _IFLNK 0120000 /* symbolic link */
#define S_ISLNK(m) (((m)&_IFMT) == _IFLNK)
-#else
-#error PORT-ME: need to port statfs (how much space is left on the drive?)
-#endif
-#endif
-#endif
-#endif
-
-#if !defined(SOMEBSD) && !defined(DARWIN) && !defined(WINDOWS)
-#include <wordexp.h>
-#endif
-#if LINUX
-#include <sys/statvfs.h>
#endif
{
/**
* File descriptors for the pipe.
+ * One or both of them could be NULL.
*/
struct GNUNET_DISK_FileHandle *fd[2];
};
* Iterate over all files in the given directory and
* accumulate their size.
*
- * @param cls closure of type "struct GetFileSizeData"
+ * @param cls closure of type `struct GetFileSizeData`
* @param fn current filename we are looking at
- * @return GNUNET_SYSERR on serious errors, otherwise GNUNET_OK
+ * @return #GNUNET_SYSERR on serious errors, otherwise #GNUNET_OK
*/
static int
getSizeRec (void *cls, const char *fn)
{
struct GetFileSizeData *gfsd = cls;
-#ifdef HAVE_STAT64
- struct stat64 buf;
-#else
- struct stat buf;
-#endif
+#if defined (HAVE_STAT64) && !(defined (_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64)
+ STRUCT_STAT64 buf;
-#ifdef HAVE_STAT64
if (0 != STAT64 (fn, &buf))
{
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_DEBUG, "stat64", fn);
return GNUNET_SYSERR;
}
#else
+ struct stat buf;
+
if (0 != STAT (fn, &buf))
{
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_DEBUG, "stat", fn);
* Checks whether a handle is invalid
*
* @param h handle to check
- * @return GNUNET_YES if invalid, GNUNET_NO if valid
+ * @return #GNUNET_YES if invalid, #GNUNET_NO if valid
*/
int
GNUNET_DISK_handle_invalid (const struct GNUNET_DISK_FileHandle *h)
*
* @param fh open file handle
* @param size where to write size of the file
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
GNUNET_DISK_file_handle_size (struct GNUNET_DISK_FileHandle *fh,
- OFF_T *size)
+ off_t *size)
{
#if WINDOWS
BOOL b;
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
- *size = (OFF_T) li.QuadPart;
+ *size = (off_t) li.QuadPart;
#else
struct stat sbuf;
* @param h handle of an open file
* @param offset position to move to
* @param whence specification to which position the offset parameter relates to
- * @return the new position on success, GNUNET_SYSERR otherwise
+ * @return the new position on success, #GNUNET_SYSERR otherwise
*/
-OFF_T
-GNUNET_DISK_file_seek (const struct GNUNET_DISK_FileHandle * h, OFF_T offset,
+off_t
+GNUNET_DISK_file_seek (const struct GNUNET_DISK_FileHandle * h, off_t offset,
enum GNUNET_DISK_Seek whence)
{
if (h == NULL)
LARGE_INTEGER new_pos;
BOOL b;
- static DWORD t[] = {[GNUNET_DISK_SEEK_SET] = FILE_BEGIN,
- [GNUNET_DISK_SEEK_CUR] = FILE_CURRENT,[GNUNET_DISK_SEEK_END] = FILE_END
- };
+ static DWORD t[] = { FILE_BEGIN, FILE_CURRENT, FILE_END };
li.QuadPart = offset;
b = SetFilePointerEx (h->h, li, &new_pos, t[whence]);
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
- return (OFF_T) new_pos.QuadPart;
+ return (off_t) new_pos.QuadPart;
#else
- static int t[] = {[GNUNET_DISK_SEEK_SET] = SEEK_SET,
- [GNUNET_DISK_SEEK_CUR] = SEEK_CUR,[GNUNET_DISK_SEEK_END] = SEEK_END
- };
+ static int t[] = { SEEK_SET, SEEK_CUR, SEEK_END };
return lseek (h->fd, offset, t[whence]);
#endif
* @param size set to the size of the file (or,
* in the case of directories, the sum
* of all sizes of files in the directory)
- * @param includeSymLinks should symbolic links be
+ * @param include_symbolic_links should symbolic links be
* included?
- * @param singleFileMode GNUNET_YES to only get size of one file
- * and return GNUNET_SYSERR for directories.
- * @return GNUNET_SYSERR on error, GNUNET_OK on success
+ * @param single_file_mode #GNUNET_YES to only get size of one file
+ * and return #GNUNET_SYSERR for directories.
+ * @return #GNUNET_SYSERR on error, #GNUNET_OK on success
*/
int
-GNUNET_DISK_file_size (const char *filename, uint64_t * size,
- int includeSymLinks, int singleFileMode)
+GNUNET_DISK_file_size (const char *filename,
+ uint64_t * size,
+ int include_symbolic_links,
+ int single_file_mode)
{
struct GetFileSizeData gfsd;
int ret;
GNUNET_assert (size != NULL);
gfsd.total = 0;
- gfsd.include_sym_links = includeSymLinks;
- gfsd.single_file_mode = singleFileMode;
+ gfsd.include_sym_links = include_symbolic_links;
+ gfsd.single_file_mode = single_file_mode;
ret = getSizeRec (&gfsd, filename);
*size = gfsd.total;
return ret;
* @param filename name of the file
* @param dev set to the device ID
* @param ino set to the inode ID
- * @return GNUNET_OK on success
+ * @return #GNUNET_OK on success
*/
int
GNUNET_DISK_file_get_identifiers (const char *filename, uint64_t * dev,
uint64_t * ino)
{
-#if LINUX
- struct stat sbuf;
- struct statvfs fbuf;
+#if WINDOWS
+ {
+ // FIXME NILS: test this
+ struct GNUNET_DISK_FileHandle *fh;
+ BY_HANDLE_FILE_INFORMATION info;
+ int succ;
- if ((0 == stat (filename, &sbuf)) && (0 == statvfs (filename, &fbuf)))
+ fh = GNUNET_DISK_file_open (filename,
+ GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_NONE);
+ if (NULL == fh)
+ return GNUNET_SYSERR;
+ succ = GetFileInformationByHandle (fh->h, &info);
+ GNUNET_DISK_file_close (fh);
+ if (!succ)
+ {
+ return GNUNET_SYSERR;
+ }
+ *dev = info.dwVolumeSerialNumber;
+ *ino = ((((uint64_t) info.nFileIndexHigh) << (sizeof (DWORD) * 8)) | info.nFileIndexLow);
+ }
+#else /* !WINDOWS */
+#if HAVE_STAT
{
- *dev = (uint64_t) fbuf.f_fsid;
+ struct stat sbuf;
+
+ if (0 != stat (filename, &sbuf))
+ {
+ return GNUNET_SYSERR;
+ }
*ino = (uint64_t) sbuf.st_ino;
- return GNUNET_OK;
}
-#elif SOMEBSD
- struct stat sbuf;
- struct statfs fbuf;
+#else
+ *ino = 0;
+#endif
+#if HAVE_STATVFS
+ {
+ struct statvfs fbuf;
- if ((0 == stat (filename, &sbuf)) && (0 == statfs (filename, &fbuf)))
+ if (0 != statvfs (filename, &fbuf))
+ {
+ return GNUNET_SYSERR;
+ }
+ *dev = (uint64_t) fbuf.f_fsid;
+ }
+#elif HAVE_STATFS
{
+ struct statfs fbuf;
+
+ if (0 != statfs (filename, &fbuf))
+ {
+ return GNUNET_SYSERR;
+ }
*dev = ((uint64_t) fbuf.f_fsid.val[0]) << 32 ||
((uint64_t) fbuf.f_fsid.val[1]);
- *ino = (uint64_t) sbuf.st_ino;
- return GNUNET_OK;
}
-#elif WINDOWS
- // FIXME NILS: test this
- struct GNUNET_DISK_FileHandle *fh;
- BY_HANDLE_FILE_INFORMATION info;
- int succ;
-
- fh = GNUNET_DISK_file_open (filename, GNUNET_DISK_OPEN_READ, 0);
- if (fh == NULL)
- return GNUNET_SYSERR;
- succ = GetFileInformationByHandle (fh->h, &info);
- GNUNET_DISK_file_close (fh);
- if (succ)
- {
- *dev = info.dwVolumeSerialNumber;
- *ino = ((((uint64_t) info.nFileIndexHigh) << (sizeof (DWORD) * 8)) | info.nFileIndexLow);
- return GNUNET_OK;
- }
- else
- return GNUNET_SYSERR;
-
+#else
+ *dev = 0;
#endif
- return GNUNET_SYSERR;
+#endif /* !WINDOWS */
+ return GNUNET_OK;
}
if (NULL == tmpdir)
tmpdir = getenv ("TMP");
if (NULL == tmpdir)
- tmpdir = getenv ("TEMP");
+ tmpdir = getenv ("TEMP");
if (NULL == tmpdir)
tmpdir = "/tmp";
GNUNET_asprintf (&tmpl, "%s/%s%s", tmpdir, t, "XXXXXX");
return fn;
}
+
#if WINDOWS
static char *
mkdtemp (char *fn)
{
char *random_fn;
char *tfn;
+
while (1)
{
tfn = GNUNET_strdup (fn);
strcpy (fn, tfn);
return fn;
}
+
+/**
+ * Update POSIX permissions mask of a file on disk. If both argumets
+ * are #GNUNET_NO, the file is made world-read-write-executable (777).
+ * Does nothing on W32.
+ *
+ * @param fn name of the file to update
+ * @param require_uid_match #GNUNET_YES means 700
+ * @param require_gid_match #GNUNET_YES means 770 unless @a require_uid_match is set
+ */
+void
+GNUNET_DISK_fix_permissions (const char *fn,
+ int require_uid_match,
+ int require_gid_match)
+{
+ /* nothing on W32 */
+}
+
+#else
+
+/**
+ * Update POSIX permissions mask of a file on disk. If both argumets
+ * are #GNUNET_NO, the file is made world-read-write-executable (777).
+ *
+ * @param fn name of the file to update
+ * @param require_uid_match #GNUNET_YES means 700
+ * @param require_gid_match #GNUNET_YES means 770 unless @a require_uid_match is set
+ */
+void
+GNUNET_DISK_fix_permissions (const char *fn,
+ int require_uid_match,
+ int require_gid_match)
+{
+ mode_t mode;
+
+ if (GNUNET_YES == require_uid_match)
+ mode = S_IRUSR | S_IWUSR | S_IXUSR;
+ else if (GNUNET_YES == require_gid_match)
+ mode = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP;
+ else
+ mode = S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IWOTH | S_IXOTH;
+ if (0 != chmod (fn, mode))
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
+ "chmod",
+ fn);
+}
+
#endif
/**
GNUNET_DISK_mkdtemp (const char *t)
{
char *fn;
+ mode_t omask;
+ omask = umask (S_IWGRP | S_IWOTH | S_IRGRP | S_IROTH);
fn = mktemp_name (t);
if (fn != mkdtemp (fn))
{
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_ERROR, "mkstemp", fn);
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_ERROR, "mkdtemp", fn);
GNUNET_free (fn);
+ umask (omask);
return NULL;
}
+ umask (omask);
return fn;
}
+/**
+ * Move a file out of the way (create a backup) by
+ * renaming it to "orig.NUM~" where NUM is the smallest
+ * number that is not used yet.
+ *
+ * @param fil name of the file to back up
+ */
+void
+GNUNET_DISK_file_backup (const char *fil)
+{
+ size_t slen;
+ char *target;
+ unsigned int num;
+
+ slen = strlen (fil) + 20;
+ target = GNUNET_malloc (slen);
+ num = 0;
+ do
+ {
+ GNUNET_snprintf (target, slen,
+ "%s.%u~",
+ fil,
+ num++);
+ } while (0 == access (target, F_OK));
+ if (0 != rename (fil, target))
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+ "rename",
+ fil);
+ GNUNET_free (target);
+}
+
+
/**
* Create an (empty) temporary file on disk. If the given name is not
* an absolute path, the current 'TMPDIR' will be prepended. In any case,
{
int fd;
char *fn;
+ mode_t omask;
+ omask = umask (S_IWGRP | S_IWOTH | S_IRGRP | S_IROTH);
fn = mktemp_name (t);
if (-1 == (fd = mkstemp (fn)))
{
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_ERROR, "mkstemp", fn);
GNUNET_free (fn);
+ umask (omask);
return NULL;
}
+ umask (omask);
if (0 != CLOSE (fd))
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "close", fn);
return fn;
/**
- * Get the number of blocks that are left on the partition that
- * contains the given file (for normal users).
- *
- * @param part a file on the partition to check
- * @return -1 on errors, otherwise the number of free blocks
- */
-long
-GNUNET_DISK_get_blocks_available (const char *part)
-{
-#ifdef SOLARIS
- struct statvfs buf;
-
- if (0 != statvfs (part, &buf))
- {
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "statfs", part);
- return -1;
- }
- return buf.f_bavail;
-#elif MINGW
- DWORD dwDummy;
- DWORD dwBlocks;
- wchar_t szDrive[4];
- wchar_t wpath[MAX_PATH + 1];
- char *path;
-
- path = GNUNET_STRINGS_filename_expand (part);
- if (path == NULL)
- return -1;
- /* "part" was in UTF-8, and so is "path" */
- if (ERROR_SUCCESS != plibc_conv_to_win_pathwconv(path, wpath))
- {
- GNUNET_free (path);
- return -1;
- }
- GNUNET_free (path);
- wcsncpy (szDrive, wpath, 3);
- szDrive[3] = 0;
- if (!GetDiskFreeSpaceW (szDrive, &dwDummy, &dwDummy, &dwBlocks, &dwDummy))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, _("`%s' failed for drive `%S': %u\n"),
- "GetDiskFreeSpace", szDrive, GetLastError ());
-
- return -1;
- }
- return dwBlocks;
-#else
- struct statfs s;
-
- if (0 != statfs (part, &s))
- {
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "statfs", part);
- return -1;
- }
- return s.f_bavail;
-#endif
-}
-
-
-/**
- * Test if "fil" is a directory.
- * Will not print an error message if the directory
- * does not exist. Will log errors if GNUNET_SYSERR is
- * returned (i.e., a file exists with the same name).
+ * Test if @a fil is a directory and listable. Optionally, also check if the
+ * directory is readable. Will not print an error message if the directory does
+ * not exist. Will log errors if #GNUNET_SYSERR is returned (i.e., a file exists
+ * with the same name).
*
* @param fil filename to test
- * @return GNUNET_YES if yes, GNUNET_NO if not, GNUNET_SYSERR if it
- * does not exist
+ * @param is_readable #GNUNET_YES to additionally check if @a fil is readable;
+ * #GNUNET_NO to disable this check
+ * @return #GNUNET_YES if yes, #GNUNET_NO if not; #GNUNET_SYSERR if it
+ * does not exist or stat'ed
*/
int
-GNUNET_DISK_directory_test (const char *fil)
+GNUNET_DISK_directory_test (const char *fil, int is_readable)
{
struct stat filestat;
int ret;
if (ret != 0)
{
if (errno != ENOENT)
- {
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "stat", fil);
- return GNUNET_SYSERR;
- }
- return GNUNET_NO;
+ return GNUNET_SYSERR;
}
if (!S_ISDIR (filestat.st_mode))
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "A file already exits with the same name %s\n", fil);
return GNUNET_NO;
- if (ACCESS (fil, R_OK | X_OK) < 0)
+ }
+ if (GNUNET_YES == is_readable)
+ ret = ACCESS (fil, R_OK | X_OK);
+ else
+ ret = ACCESS (fil, X_OK);
+ if (ret < 0)
{
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "access", fil);
- return GNUNET_SYSERR;
+ return GNUNET_NO;
}
return GNUNET_YES;
}
* (of a file that exists and that is not a directory).
*
* @param fil filename to check
- * @return GNUNET_YES if yes, GNUNET_NO if not a file, GNUNET_SYSERR if something
+ * @return #GNUNET_YES if yes, #GNUNET_NO if not a file, #GNUNET_SYSERR if something
* else (will print an error message in that case, too).
*/
int
GNUNET_free (rdir);
return GNUNET_NO;
}
- if (ACCESS (rdir, R_OK) < 0)
+ if (ACCESS (rdir, F_OK) < 0)
{
LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "access", rdir);
GNUNET_free (rdir);
/**
* Implementation of "mkdir -p"
+ *
* @param dir the directory to create
- * @returns GNUNET_OK on success, GNUNET_SYSERR on failure
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
*/
int
GNUNET_DISK_directory_create (const char *dir)
{
char *rdir;
- int len;
- int pos;
+ unsigned int len;
+ unsigned int pos;
+ unsigned int pos2;
int ret = GNUNET_OK;
rdir = GNUNET_STRINGS_filename_expand (dir);
pos = 3; /* strlen("C:\\") */
}
#endif
+ /* Check which low level directories already exist */
+ pos2 = len;
+ rdir[len] = DIR_SEPARATOR;
+ while (pos <= pos2)
+ {
+ if (DIR_SEPARATOR == rdir[pos2])
+ {
+ rdir[pos2] = '\0';
+ ret = GNUNET_DISK_directory_test (rdir, GNUNET_NO);
+ if (GNUNET_NO == ret)
+ {
+ GNUNET_free (rdir);
+ return GNUNET_SYSERR;
+ }
+ rdir[pos2] = DIR_SEPARATOR;
+ if (GNUNET_YES == ret)
+ {
+ pos2++;
+ break;
+ }
+ }
+ pos2--;
+ }
+ rdir[len] = '\0';
+ if (pos < pos2)
+ pos = pos2;
+ /* Start creating directories */
while (pos <= len)
{
if ((rdir[pos] == DIR_SEPARATOR) || (pos == len))
{
rdir[pos] = '\0';
- ret = GNUNET_DISK_directory_test (rdir);
- if (ret == GNUNET_SYSERR)
+ ret = GNUNET_DISK_directory_test (rdir, GNUNET_NO);
+ if (GNUNET_NO == ret)
{
GNUNET_free (rdir);
return GNUNET_SYSERR;
}
- if (ret == GNUNET_NO)
+ if (GNUNET_SYSERR == ret)
{
#ifndef MINGW
ret = mkdir (rdir, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); /* 755 */
/**
- * Create the directory structure for storing
- * a file.
+ * Create the directory structure for storing a file.
*
* @param filename name of a file in the directory
- * @returns GNUNET_OK on success,
- * GNUNET_SYSERR on failure,
- * GNUNET_NO if the directory
+ * @returns #GNUNET_OK on success,
+ * #GNUNET_SYSERR on failure,
+ * #GNUNET_NO if the directory
* exists but is not writeable for us
*/
int
GNUNET_DISK_directory_create_for_file (const char *filename)
{
char *rdir;
- int len;
+ size_t len;
int ret;
+ int eno;
rdir = GNUNET_STRINGS_filename_expand (filename);
- if (rdir == NULL)
+ if (NULL == rdir)
+ {
+ errno = EINVAL;
return GNUNET_SYSERR;
+ }
len = strlen (rdir);
while ((len > 0) && (rdir[len] != DIR_SEPARATOR))
len--;
rdir[len] = '\0';
+ /* The empty path is invalid and in this case refers to / */
+ if (0 == len)
+ {
+ GNUNET_free (rdir);
+ rdir = GNUNET_strdup ("/");
+ }
ret = GNUNET_DISK_directory_create (rdir);
- if ((ret == GNUNET_OK) && (0 != ACCESS (rdir, W_OK)))
+ if ((GNUNET_OK == ret) && (0 != ACCESS (rdir, W_OK)))
ret = GNUNET_NO;
+ eno = errno;
GNUNET_free (rdir);
+ errno = eno;
return ret;
}
/**
* Read the contents of a binary file into a buffer.
+ *
* @param h handle to an open file
* @param result the buffer to write the result to
* @param len the maximum number of bytes to read
- * @return the number of bytes read on success, GNUNET_SYSERR on failure
+ * @return the number of bytes read on success, #GNUNET_SYSERR on failure
*/
ssize_t
-GNUNET_DISK_file_read (const struct GNUNET_DISK_FileHandle * h, void *result,
+GNUNET_DISK_file_read (const struct GNUNET_DISK_FileHandle *h,
+ void *result,
size_t len)
{
- if (h == NULL)
+ if (NULL == h)
{
errno = EINVAL;
return GNUNET_SYSERR;
}
#ifdef MINGW
- DWORD bytesRead;
+ DWORD bytes_read;
- if (h->type != GNUNET_PIPE)
+ if (h->type == GNUNET_DISK_HANLDE_TYPE_FILE)
{
- if (!ReadFile (h->h, result, len, &bytesRead, NULL))
+ if (!ReadFile (h->h, result, len, &bytes_read, NULL))
{
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
}
- else
+ else if (h->type == GNUNET_DISK_HANLDE_TYPE_PIPE)
{
- if (!ReadFile (h->h, result, len, &bytesRead, h->oOverlapRead))
+ if (!ReadFile (h->h, result, len, &bytes_read, h->oOverlapRead))
{
if (GetLastError () != ERROR_IO_PENDING)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Error reading from pipe: %u\n", GetLastError ());
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Error reading from pipe: %u\n",
+ GetLastError ());
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Will get overlapped result\n");
- GetOverlappedResult (h->h, h->oOverlapRead, &bytesRead, TRUE);
+ GetOverlappedResult (h->h, h->oOverlapRead, &bytes_read, TRUE);
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Read %u bytes from pipe\n", bytesRead);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Read %u bytes from pipe\n", bytes_read);
+ }
+ else
+ {
+ bytes_read = 0;
}
- return bytesRead;
+ return bytes_read;
#else
return read (h->fd, result, len);
#endif
* @param h handle to an open file
* @param result the buffer to write the result to
* @param len the maximum number of bytes to read
- * @return the number of bytes read on success, GNUNET_SYSERR on failure
+ * @return the number of bytes read on success, #GNUNET_SYSERR on failure
*/
ssize_t
-GNUNET_DISK_file_read_non_blocking (const struct GNUNET_DISK_FileHandle * h,
- void *result, size_t len)
+GNUNET_DISK_file_read_non_blocking (const struct GNUNET_DISK_FileHandle *h,
+ void *result,
+ size_t len)
{
- if (h == NULL)
+ if (NULL == h)
{
errno = EINVAL;
return GNUNET_SYSERR;
}
#ifdef MINGW
- DWORD bytesRead;
+ DWORD bytes_read;
- if (h->type != GNUNET_PIPE)
+ if (h->type == GNUNET_DISK_HANLDE_TYPE_FILE)
{
- if (!ReadFile (h->h, result, len, &bytesRead, NULL))
+ if (!ReadFile (h->h, result, len, &bytes_read, NULL))
{
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
}
- else
+ else if (h->type == GNUNET_DISK_HANLDE_TYPE_PIPE)
{
- if (!ReadFile (h->h, result, len, &bytesRead, h->oOverlapRead))
+ if (!ReadFile (h->h, result, len, &bytes_read, h->oOverlapRead))
{
if (GetLastError () != ERROR_IO_PENDING)
{
return GNUNET_SYSERR;
}
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Read %u bytes\n", bytesRead);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Read %u bytes\n",
+ bytes_read);
}
- return bytesRead;
+ else
+ {
+ bytes_read = 0;
+ }
+ return bytes_read;
#else
int flags;
ssize_t ret;
/* set to non-blocking, read, then set back */
flags = fcntl (h->fd, F_GETFL);
if (0 == (flags & O_NONBLOCK))
- fcntl (h->fd, F_SETFL, flags | O_NONBLOCK);
+ (void) fcntl (h->fd, F_SETFL, flags | O_NONBLOCK);
ret = read (h->fd, result, len);
if (0 == (flags & O_NONBLOCK))
- fcntl (h->fd, F_SETFL, flags);
+ {
+ int eno = errno;
+ (void) fcntl (h->fd, F_SETFL, flags);
+ errno = eno;
+ }
return ret;
#endif
}
* @param fn file name
* @param result the buffer to write the result to
* @param len the maximum number of bytes to read
- * @return number of bytes read, GNUNET_SYSERR on failure
+ * @return number of bytes read, #GNUNET_SYSERR on failure
*/
ssize_t
-GNUNET_DISK_fn_read (const char *fn, void *result, size_t len)
+GNUNET_DISK_fn_read (const char *fn,
+ void *result,
+ size_t len)
{
struct GNUNET_DISK_FileHandle *fh;
ssize_t ret;
+ int eno;
- fh = GNUNET_DISK_file_open (fn, GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_NONE);
- if (!fh)
+ fh = GNUNET_DISK_file_open (fn,
+ GNUNET_DISK_OPEN_READ,
+ GNUNET_DISK_PERM_NONE);
+ if (NULL == fh)
return GNUNET_SYSERR;
ret = GNUNET_DISK_file_read (fh, result, len);
+ eno = errno;
GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
-
+ errno = eno;
return ret;
}
/**
* Write a buffer to a file.
+ *
* @param h handle to open file
* @param buffer the data to write
* @param n number of bytes to write
- * @return number of bytes written on success, GNUNET_SYSERR on error
+ * @return number of bytes written on success, #GNUNET_SYSERR on error
*/
ssize_t
GNUNET_DISK_file_write (const struct GNUNET_DISK_FileHandle * h,
const void *buffer, size_t n)
{
- if (h == NULL)
+ if (NULL == h)
{
errno = EINVAL;
return GNUNET_SYSERR;
}
#ifdef MINGW
- DWORD bytesWritten;
+ DWORD bytes_written;
- if (h->type != GNUNET_PIPE)
+ if (h->type == GNUNET_DISK_HANLDE_TYPE_FILE)
{
- if (!WriteFile (h->h, buffer, n, &bytesWritten, NULL))
+ if (!WriteFile (h->h, buffer, n, &bytes_written, NULL))
{
SetErrnoFromWinError (GetLastError ());
return GNUNET_SYSERR;
}
}
- else
+ else if (h->type == GNUNET_DISK_HANLDE_TYPE_PIPE)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "It is a pipe trying to write %u bytes\n", n);
- if (!WriteFile (h->h, buffer, n, &bytesWritten, h->oOverlapWrite))
+ if (!WriteFile (h->h, buffer, n, &bytes_written, h->oOverlapWrite))
{
if (GetLastError () != ERROR_IO_PENDING)
{
return GNUNET_SYSERR;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Will get overlapped result\n");
- if (!GetOverlappedResult (h->h, h->oOverlapWrite, &bytesWritten, TRUE))
+ if (!GetOverlappedResult (h->h, h->oOverlapWrite, &bytes_written, TRUE))
{
SetErrnoFromWinError (GetLastError ());
LOG (GNUNET_ERROR_TYPE_DEBUG,
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Wrote %u bytes (ovr says %u), picking the greatest\n",
- bytesWritten, ovr);
+ bytes_written, ovr);
}
}
- if (bytesWritten == 0)
+ if (bytes_written == 0)
{
if (n > 0)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Wrote %u bytes, returning -1 with EAGAIN\n", bytesWritten);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Wrote %u bytes, returning -1 with EAGAIN\n", bytes_written);
errno = EAGAIN;
return GNUNET_SYSERR;
}
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Wrote %u bytes\n", bytesWritten);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Wrote %u bytes\n", bytes_written);
}
- return bytesWritten;
+ else
+ {
+ bytes_written = 0;
+ }
+ return bytes_written;
#else
return write (h->fd, buffer, n);
#endif
/**
* Write a buffer to a file, blocking, if necessary.
+ *
* @param h handle to open file
* @param buffer the data to write
* @param n number of bytes to write
- * @return number of bytes written on success, GNUNET_SYSERR on error
+ * @return number of bytes written on success, #GNUNET_SYSERR on error
*/
ssize_t
GNUNET_DISK_file_write_blocking (const struct GNUNET_DISK_FileHandle * h,
- const void *buffer, size_t n)
+ const void *buffer,
+ size_t n)
{
- if (h == NULL)
+ if (NULL == h)
{
errno = EINVAL;
return GNUNET_SYSERR;
}
#ifdef MINGW
- DWORD bytesWritten;
+ DWORD bytes_written;
/* We do a non-overlapped write, which is as blocking as it gets */
LOG (GNUNET_ERROR_TYPE_DEBUG, "Writing %u bytes\n", n);
- if (!WriteFile (h->h, buffer, n, &bytesWritten, NULL))
+ if (!WriteFile (h->h, buffer, n, &bytes_written, NULL))
{
SetErrnoFromWinError (GetLastError ());
LOG (GNUNET_ERROR_TYPE_DEBUG, "Error writing to pipe: %u\n",
GetLastError ());
return GNUNET_SYSERR;
}
- if (bytesWritten == 0 && n > 0)
+ if (bytes_written == 0 && n > 0)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Waiting for pipe to clean\n");
WaitForSingleObject (h->h, INFINITE);
- if (!WriteFile (h->h, buffer, n, &bytesWritten, NULL))
+ if (!WriteFile (h->h, buffer, n, &bytes_written, NULL))
{
SetErrnoFromWinError (GetLastError ());
LOG (GNUNET_ERROR_TYPE_DEBUG, "Error writing to pipe: %u\n",
return GNUNET_SYSERR;
}
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Wrote %u bytes\n", bytesWritten);
- return bytesWritten;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Wrote %u bytes\n",
+ bytes_written);
+ return bytes_written;
#else
int flags;
ssize_t ret;
/* set to blocking, write, then set back */
flags = fcntl (h->fd, F_GETFL);
if (0 != (flags & O_NONBLOCK))
- fcntl (h->fd, F_SETFL, flags - O_NONBLOCK);
+ (void) fcntl (h->fd, F_SETFL, flags - O_NONBLOCK);
ret = write (h->fd, buffer, n);
if (0 == (flags & O_NONBLOCK))
- fcntl (h->fd, F_SETFL, flags);
+ (void) fcntl (h->fd, F_SETFL, flags);
return ret;
#endif
}
* @param buffer the data to write
* @param n number of bytes to write
* @param mode file permissions
- * @return number of bytes written on success, GNUNET_SYSERR on error
+ * @return number of bytes written on success, #GNUNET_SYSERR on error
*/
ssize_t
-GNUNET_DISK_fn_write (const char *fn, const void *buffer, size_t n,
+GNUNET_DISK_fn_write (const char *fn,
+ const void *buffer,
+ size_t n,
enum GNUNET_DISK_AccessPermissions mode)
{
struct GNUNET_DISK_FileHandle *fh;
fh = GNUNET_DISK_file_open (fn,
GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_TRUNCATE
| GNUNET_DISK_OPEN_CREATE, mode);
- if (!fh)
+ if (! fh)
return GNUNET_SYSERR;
ret = GNUNET_DISK_file_write (fh, buffer, n);
GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fh));
/**
* Scan a directory for files.
*
- * @param dirName the name of the directory
+ * @param dir_name the name of the directory
* @param callback the method to call for each file,
* can be NULL, in that case, we only count
- * @param callback_cls closure for callback
- * @return the number of files found, GNUNET_SYSERR on error or
- * ieration aborted by callback returning GNUNET_SYSERR
+ * @param callback_cls closure for @a callback
+ * @return the number of files found, #GNUNET_SYSERR on error or
+ * ieration aborted by callback returning #GNUNET_SYSERR
*/
int
-GNUNET_DISK_directory_scan (const char *dirName,
+GNUNET_DISK_directory_scan (const char *dir_name,
GNUNET_FileNameCallback callback,
void *callback_cls)
{
struct dirent *finfo;
struct stat istat;
int count = 0;
+ int ret;
char *name;
char *dname;
unsigned int name_len;
unsigned int n_size;
- GNUNET_assert (dirName != NULL);
- dname = GNUNET_STRINGS_filename_expand (dirName);
- if (dname == NULL)
+ GNUNET_assert (NULL != dir_name);
+ dname = GNUNET_STRINGS_filename_expand (dir_name);
+ if (NULL == dname)
return GNUNET_SYSERR;
- while ((strlen (dname) > 0) && (dname[strlen (dname) - 1] == DIR_SEPARATOR))
+ while ( (strlen (dname) > 0) &&
+ (dname[strlen (dname) - 1] == DIR_SEPARATOR) )
dname[strlen (dname) - 1] = '\0';
if (0 != STAT (dname, &istat))
{
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "stat", dname);
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING,
+ "stat",
+ dname);
GNUNET_free (dname);
return GNUNET_SYSERR;
}
- if (!S_ISDIR (istat.st_mode))
+ if (! S_ISDIR (istat.st_mode))
{
- LOG (GNUNET_ERROR_TYPE_WARNING, _("Expected `%s' to be a directory!\n"),
- dirName);
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Expected `%s' to be a directory!\n"),
+ dir_name);
GNUNET_free (dname);
return GNUNET_SYSERR;
}
errno = 0;
dinfo = OPENDIR (dname);
- if ((errno == EACCES) || (dinfo == NULL))
+ if ( (EACCES == errno) ||
+ (NULL == dinfo) )
{
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "opendir", dname);
- if (dinfo != NULL)
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING,
+ "opendir",
+ dname);
+ if (NULL != dinfo)
CLOSEDIR (dinfo);
GNUNET_free (dname);
return GNUNET_SYSERR;
}
name_len = 256;
- n_size = strlen (dname) + name_len + 2;
+ n_size = strlen (dname) + name_len + strlen (DIR_SEPARATOR_STR) + 1;
name = GNUNET_malloc (n_size);
- while ((finfo = READDIR (dinfo)) != NULL)
+ while (NULL != (finfo = READDIR (dinfo)))
{
- if ((0 == strcmp (finfo->d_name, ".")) ||
- (0 == strcmp (finfo->d_name, "..")))
+ if ( (0 == strcmp (finfo->d_name, ".")) ||
+ (0 == strcmp (finfo->d_name, "..")) )
continue;
- if (callback != NULL)
+ if (NULL != callback)
{
if (name_len < strlen (finfo->d_name))
{
GNUNET_free (name);
name_len = strlen (finfo->d_name);
- n_size = strlen (dname) + name_len + 2;
+ n_size = strlen (dname) + name_len + strlen (DIR_SEPARATOR_STR) + 1;
name = GNUNET_malloc (n_size);
}
/* dname can end in "/" only if dname == "/";
* if dname does not end in "/", we need to add
* a "/" (otherwise, we must not!) */
- GNUNET_snprintf (name, n_size, "%s%s%s", dname,
- (strcmp (dname, DIR_SEPARATOR_STR) ==
- 0) ? "" : DIR_SEPARATOR_STR, finfo->d_name);
- if (GNUNET_OK != callback (callback_cls, name))
+ GNUNET_snprintf (name,
+ n_size,
+ "%s%s%s",
+ dname,
+ (0 == strcmp (dname,
+ DIR_SEPARATOR_STR))
+ ? ""
+ : DIR_SEPARATOR_STR,
+ finfo->d_name);
+ ret = callback (callback_cls,
+ name);
+ if (GNUNET_OK != ret)
{
CLOSEDIR (dinfo);
GNUNET_free (name);
GNUNET_free (dname);
+ if (GNUNET_NO == ret)
+ return count;
return GNUNET_SYSERR;
}
}
}
-/**
- * Opaque handle used for iterating over a directory.
- */
-struct GNUNET_DISK_DirectoryIterator
-{
-
- /**
- * Function to call on directory entries.
- */
- GNUNET_DISK_DirectoryIteratorCallback callback;
-
- /**
- * Closure for callback.
- */
- void *callback_cls;
-
- /**
- * Reference to directory.
- */
- DIR *directory;
-
- /**
- * Directory name.
- */
- char *dirname;
-
- /**
- * Next filename to process.
- */
- char *next_name;
-
- /**
- * Our priority.
- */
- enum GNUNET_SCHEDULER_Priority priority;
-
-};
-
-
-/**
- * Task used by the directory iterator.
- */
-static void
-directory_iterator_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct GNUNET_DISK_DirectoryIterator *iter = cls;
- char *name;
-
- name = iter->next_name;
- GNUNET_assert (name != NULL);
- iter->next_name = NULL;
- iter->callback (iter->callback_cls, iter, name, iter->dirname);
- GNUNET_free (name);
-}
-
-
-/**
- * This function must be called during the DiskIteratorCallback
- * (exactly once) to schedule the task to process the next
- * filename in the directory (if there is one).
- *
- * @param iter opaque handle for the iterator
- * @param can set to GNUNET_YES to terminate the iteration early
- * @return GNUNET_YES if iteration will continue,
- * GNUNET_NO if this was the last entry (and iteration is complete),
- * GNUNET_SYSERR if abort was YES
- */
-int
-GNUNET_DISK_directory_iterator_next (struct GNUNET_DISK_DirectoryIterator *iter,
- int can)
-{
- struct dirent *finfo;
-
- GNUNET_assert (iter->next_name == NULL);
- if (can == GNUNET_YES)
- {
- CLOSEDIR (iter->directory);
- GNUNET_free (iter->dirname);
- GNUNET_free (iter);
- return GNUNET_SYSERR;
- }
- while (NULL != (finfo = READDIR (iter->directory)))
- {
- if ((0 == strcmp (finfo->d_name, ".")) ||
- (0 == strcmp (finfo->d_name, "..")))
- continue;
- GNUNET_asprintf (&iter->next_name, "%s%s%s", iter->dirname,
- DIR_SEPARATOR_STR, finfo->d_name);
- break;
- }
- if (finfo == NULL)
- {
- GNUNET_DISK_directory_iterator_next (iter, GNUNET_YES);
- return GNUNET_NO;
- }
- GNUNET_SCHEDULER_add_with_priority (iter->priority, &directory_iterator_task,
- iter);
- return GNUNET_YES;
-}
-
-
-/**
- * Scan a directory for files using the scheduler to run a task for
- * each entry. The name of the directory must be expanded first (!).
- * If a scheduler does not need to be used, GNUNET_DISK_directory_scan
- * may provide a simpler API.
- *
- * @param prio priority to use
- * @param dirName the name of the directory
- * @param callback the method to call for each file
- * @param callback_cls closure for callback
- * @return GNUNET_YES if directory is not empty and 'callback'
- * will be called later, GNUNET_NO otherwise, GNUNET_SYSERR on error.
- */
-int
-GNUNET_DISK_directory_iterator_start (enum GNUNET_SCHEDULER_Priority prio,
- const char *dirName,
- GNUNET_DISK_DirectoryIteratorCallback
- callback, void *callback_cls)
-{
- struct GNUNET_DISK_DirectoryIterator *di;
-
- di = GNUNET_malloc (sizeof (struct GNUNET_DISK_DirectoryIterator));
- di->callback = callback;
- di->callback_cls = callback_cls;
- di->directory = OPENDIR (dirName);
- if (di->directory == NULL)
- {
- GNUNET_free (di);
- callback (callback_cls, NULL, NULL, NULL);
- return GNUNET_SYSERR;
- }
- di->dirname = GNUNET_strdup (dirName);
- di->priority = prio;
- return GNUNET_DISK_directory_iterator_next (di, GNUNET_NO);
-}
-
-
/**
* Function that removes the given directory by calling
- * "GNUNET_DISK_directory_remove".
+ * #GNUNET_DISK_directory_remove().
*
* @param unused not used
* @param fn directory to remove
- * @return GNUNET_OK
+ * @return #GNUNET_OK
*/
static int
-remove_helper (void *unused, const char *fn)
+remove_helper (void *unused,
+ const char *fn)
{
+ (void) unused;
(void) GNUNET_DISK_directory_remove (fn);
return GNUNET_OK;
}
/**
- * Remove all files in a directory (rm -rf). Call with
+ * Remove all files in a directory (rm -r). Call with
* caution.
*
- *
- * @param fileName the file to remove
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @param filename the file to remove
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_DISK_directory_remove (const char *fileName)
+GNUNET_DISK_directory_remove (const char *filename)
{
struct stat istat;
- if (0 != LSTAT (fileName, &istat))
+ if (NULL == filename)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ if (0 != LSTAT (filename, &istat))
return GNUNET_NO; /* file may not exist... */
- CHMOD (fileName, S_IWUSR | S_IRUSR | S_IXUSR);
- if (UNLINK (fileName) == 0)
+ (void) CHMOD (filename,
+ S_IWUSR | S_IRUSR | S_IXUSR);
+ if (0 == UNLINK (filename))
return GNUNET_OK;
- if ((errno != EISDIR) &&
- /* EISDIR is not sufficient in all cases, e.g.
- * sticky /tmp directory may result in EPERM on BSD.
- * So we also explicitly check "isDirectory" */
- (GNUNET_YES != GNUNET_DISK_directory_test (fileName)))
- {
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "rmdir", fileName);
+ if ( (errno != EISDIR) &&
+ /* EISDIR is not sufficient in all cases, e.g.
+ * sticky /tmp directory may result in EPERM on BSD.
+ * So we also explicitly check "isDirectory" */
+ (GNUNET_YES !=
+ GNUNET_DISK_directory_test (filename,
+ GNUNET_YES)) )
+ {
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING,
+ "rmdir",
+ filename);
return GNUNET_SYSERR;
}
if (GNUNET_SYSERR ==
- GNUNET_DISK_directory_scan (fileName, &remove_helper, NULL))
+ GNUNET_DISK_directory_scan (filename,
+ &remove_helper,
+ NULL))
return GNUNET_SYSERR;
- if (0 != RMDIR (fileName))
+ if (0 != RMDIR (filename))
{
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "rmdir", fileName);
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING,
+ "rmdir",
+ filename);
return GNUNET_SYSERR;
}
return GNUNET_OK;
*
* @param src file to copy
* @param dst destination file name
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_DISK_file_copy (const char *src, const char *dst)
+GNUNET_DISK_file_copy (const char *src,
+ const char *dst)
{
char *buf;
uint64_t pos;
uint64_t size;
size_t len;
+ ssize_t sret;
struct GNUNET_DISK_FileHandle *in;
struct GNUNET_DISK_FileHandle *out;
- if (GNUNET_OK != GNUNET_DISK_file_size (src, &size, GNUNET_YES, GNUNET_YES))
+ if (GNUNET_OK !=
+ GNUNET_DISK_file_size (src,
+ &size,
+ GNUNET_YES,
+ GNUNET_YES))
+ {
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+ "stat",
+ src);
return GNUNET_SYSERR;
+ }
pos = 0;
- in = GNUNET_DISK_file_open (src, GNUNET_DISK_OPEN_READ,
+ in = GNUNET_DISK_file_open (src,
+ GNUNET_DISK_OPEN_READ,
GNUNET_DISK_PERM_NONE);
- if (!in)
+ if (! in)
+ {
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+ "open",
+ src);
return GNUNET_SYSERR;
+ }
out =
GNUNET_DISK_file_open (dst,
GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE |
GNUNET_DISK_PERM_GROUP_WRITE);
if (!out)
{
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+ "open",
+ dst);
GNUNET_DISK_file_close (in);
return GNUNET_SYSERR;
}
len = COPY_BLK_SIZE;
if (len > size - pos)
len = size - pos;
- if (len != GNUNET_DISK_file_read (in, buf, len))
+ sret = GNUNET_DISK_file_read (in,
+ buf,
+ len);
+ if ( (sret < 0) ||
+ (len != (size_t) sret) )
goto FAIL;
- if (len != GNUNET_DISK_file_write (out, buf, len))
+ sret = GNUNET_DISK_file_write (out,
+ buf,
+ len);
+ if ( (sret < 0) ||
+ (len != (size_t) sret) )
goto FAIL;
pos += len;
}
char *idx;
char c;
- idx = fn;
- while (*idx)
+ for (idx = fn; *idx; idx++)
{
c = *idx;
- if (c == '/' || c == '\\' || c == ':' || c == '*' || c == '?' || c == '"' ||
+ if (c == '/' || c == '\\' || c == ':' ||
+ c == '*' || c == '?' || c == '"' ||
c == '<' || c == '>' || c == '|')
{
*idx = '_';
}
-
- idx++;
}
}
*
* @param filename name of file to change the owner of
* @param user name of the new owner
- * @return GNUNET_OK on success, GNUNET_SYSERR on failure
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
*/
int
-GNUNET_DISK_file_change_owner (const char *filename, const char *user)
+GNUNET_DISK_file_change_owner (const char *filename,
+ const char *user)
{
#ifndef MINGW
struct passwd *pws;
pws = getpwnam (user);
- if (pws == NULL)
+ if (NULL == pws)
{
LOG (GNUNET_ERROR_TYPE_ERROR,
- _("Cannot obtain information about user `%s': %s\n"), user,
+ _("Cannot obtain information about user `%s': %s\n"),
+ user,
STRERROR (errno));
return GNUNET_SYSERR;
}
- if (0 != chown (filename, pws->pw_uid, pws->pw_gid))
- LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING, "chown", filename);
+ if (0 != chown (filename,
+ pws->pw_uid,
+ pws->pw_gid))
+ {
+ LOG_STRERROR_FILE (GNUNET_ERROR_TYPE_WARNING,
+ "chown",
+ filename);
+ return GNUNET_SYSERR;
+ }
#endif
return GNUNET_OK;
}
/**
* Lock a part of a file
+ *
* @param fh file handle
- * @param lockStart absolute position from where to lock
- * @param lockEnd absolute position until where to lock
- * @param excl GNUNET_YES for an exclusive lock
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @param lock_start absolute position from where to lock
+ * @param lock_end absolute position until where to lock
+ * @param excl #GNUNET_YES for an exclusive lock
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_DISK_file_lock (struct GNUNET_DISK_FileHandle *fh, OFF_T lockStart,
- OFF_T lockEnd, int excl)
+GNUNET_DISK_file_lock (struct GNUNET_DISK_FileHandle *fh,
+ off_t lock_start,
+ off_t lock_end,
+ int excl)
{
if (fh == NULL)
{
memset (&fl, 0, sizeof (struct flock));
fl.l_type = excl ? F_WRLCK : F_RDLCK;
fl.l_whence = SEEK_SET;
- fl.l_start = lockStart;
- fl.l_len = lockEnd;
+ fl.l_start = lock_start;
+ fl.l_len = lock_end;
return fcntl (fh->fd, F_SETLK, &fl) != 0 ? GNUNET_SYSERR : GNUNET_OK;
#else
OVERLAPPED o;
- OFF_T diff = lockEnd - lockStart;
+ off_t diff = lock_end - lock_start;
DWORD diff_low, diff_high;
diff_low = (DWORD) (diff & 0xFFFFFFFF);
diff_high = (DWORD) ((diff >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
memset (&o, 0, sizeof (OVERLAPPED));
- o.Offset = (DWORD) (lockStart & 0xFFFFFFFF);;
- o.OffsetHigh = (DWORD) (((lockStart & ~0xFFFFFFFF) >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
+ o.Offset = (DWORD) (lock_start & 0xFFFFFFFF);;
+ o.OffsetHigh = (DWORD) (((lock_start & ~0xFFFFFFFF) >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
if (!LockFileEx
(fh->h, (excl ? LOCKFILE_EXCLUSIVE_LOCK : 0) | LOCKFILE_FAIL_IMMEDIATELY,
/**
* Unlock a part of a file
+ *
* @param fh file handle
- * @param unlockStart absolute position from where to unlock
- * @param unlockEnd absolute position until where to unlock
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @param unlock_start absolute position from where to unlock
+ * @param unlock_end absolute position until where to unlock
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_DISK_file_unlock (struct GNUNET_DISK_FileHandle *fh, OFF_T unlockStart,
- OFF_T unlockEnd)
+GNUNET_DISK_file_unlock (struct GNUNET_DISK_FileHandle *fh,
+ off_t unlock_start,
+ off_t unlock_end)
{
if (fh == NULL)
{
memset (&fl, 0, sizeof (struct flock));
fl.l_type = F_UNLCK;
fl.l_whence = SEEK_SET;
- fl.l_start = unlockStart;
- fl.l_len = unlockEnd;
+ fl.l_start = unlock_start;
+ fl.l_len = unlock_end;
return fcntl (fh->fd, F_SETLK, &fl) != 0 ? GNUNET_SYSERR : GNUNET_OK;
#else
OVERLAPPED o;
- OFF_T diff = unlockEnd - unlockStart;
+ off_t diff = unlock_end - unlock_start;
DWORD diff_low, diff_high;
diff_low = (DWORD) (diff & 0xFFFFFFFF);
diff_high = (DWORD) ((diff >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
memset (&o, 0, sizeof (OVERLAPPED));
- o.Offset = (DWORD) (unlockStart & 0xFFFFFFFF);;
- o.OffsetHigh = (DWORD) (((unlockStart & ~0xFFFFFFFF) >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
+ o.Offset = (DWORD) (unlock_start & 0xFFFFFFFF);;
+ o.OffsetHigh = (DWORD) (((unlock_start & ~0xFFFFFFFF) >> (sizeof (DWORD) * 8)) & 0xFFFFFFFF);
if (!UnlockFileEx (fh->h, 0, diff_low, diff_high, &o))
{
* @param fn file name to be opened
* @param flags opening flags, a combination of GNUNET_DISK_OPEN_xxx bit flags
* @param perm permissions for the newly created file, use
- * GNUNET_DISK_PERM_USER_NONE if a file could not be created by this
+ * #GNUNET_DISK_PERM_NONE if a file could not be created by this
* call (because of flags)
* @return IO handle on success, NULL on error
*/
struct GNUNET_DISK_FileHandle *
-GNUNET_DISK_file_open (const char *fn, enum GNUNET_DISK_OpenFlags flags,
+GNUNET_DISK_file_open (const char *fn,
+ enum GNUNET_DISK_OpenFlags flags,
enum GNUNET_DISK_AccessPermissions perm)
{
char *expfn;
mode = translate_unix_perms (perm);
}
- fd = open (expfn, oflags | O_LARGEFILE, mode);
+ fd = open (expfn, oflags
+#if O_CLOEXEC
+ | O_CLOEXEC
+#endif
+ | O_LARGEFILE, mode);
if (fd == -1)
{
if (0 == (flags & GNUNET_DISK_OPEN_FAILIFEXISTS))
}
#endif
- ret = GNUNET_malloc (sizeof (struct GNUNET_DISK_FileHandle));
+ ret = GNUNET_new (struct GNUNET_DISK_FileHandle);
#ifdef MINGW
ret->h = h;
- ret->type = GNUNET_DISK_FILE;
+ ret->type = GNUNET_DISK_HANLDE_TYPE_FILE;
#else
ret->fd = fd;
#endif
/**
- * Close an open file
+ * Close an open file.
+ *
* @param h file handle
- * @return GNUNET_OK on success, GNUNET_SYSERR otherwise
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR otherwise
*/
int
GNUNET_DISK_file_close (struct GNUNET_DISK_FileHandle *h)
{
+ int ret;
if (h == NULL)
{
errno = EINVAL;
return GNUNET_SYSERR;
}
+ ret = GNUNET_OK;
+
#if MINGW
- if (!CloseHandle (h->h))
+ if (! CloseHandle (h->h))
{
SetErrnoFromWinError (GetLastError ());
LOG_STRERROR (GNUNET_ERROR_TYPE_WARNING, "close");
+ ret = GNUNET_SYSERR;
+ }
+ if (h->oOverlapRead)
+ {
+ if (! CloseHandle (h->oOverlapRead->hEvent))
+ {
+ SetErrnoFromWinError (GetLastError ());
+ LOG_STRERROR (GNUNET_ERROR_TYPE_WARNING, "close");
+ ret = GNUNET_SYSERR;
+ }
GNUNET_free (h->oOverlapRead);
+ }
+ if (h->oOverlapWrite)
+ {
+ if (!CloseHandle (h->oOverlapWrite->hEvent))
+ {
+ SetErrnoFromWinError (GetLastError ());
+ LOG_STRERROR (GNUNET_ERROR_TYPE_WARNING, "close");
+ ret = GNUNET_SYSERR;
+ }
GNUNET_free (h->oOverlapWrite);
- GNUNET_free (h);
- return GNUNET_SYSERR;
}
#else
if (close (h->fd) != 0)
{
LOG_STRERROR (GNUNET_ERROR_TYPE_WARNING, "close");
- GNUNET_free (h);
- return GNUNET_SYSERR;
+ ret = GNUNET_SYSERR;
}
#endif
GNUNET_free (h);
- return GNUNET_OK;
+ return ret;
}
+#ifdef WINDOWS
/**
- * Get a handle from a native FD.
+ * Get a GNUnet file handle from a W32 handle.
*
- * @param fd native file descriptor
- * @return file handle corresponding to the descriptor
+ * @param handle native handle
+ * @return GNUnet file handle corresponding to the W32 handle
*/
struct GNUNET_DISK_FileHandle *
-GNUNET_DISK_get_handle_from_native (FILE *fd)
+GNUNET_DISK_get_handle_from_w32_handle (HANDLE osfh)
{
struct GNUNET_DISK_FileHandle *fh;
- int fno;
-#if MINGW
- intptr_t osfh;
-#endif
+ DWORD dwret;
+ enum GNUNET_FILE_Type ftype;
- fno = fileno (fd);
- if (-1 == fno)
+ dwret = GetFileType (osfh);
+ switch (dwret)
+ {
+ case FILE_TYPE_DISK:
+ ftype = GNUNET_DISK_HANLDE_TYPE_FILE;
+ break;
+ case FILE_TYPE_PIPE:
+ ftype = GNUNET_DISK_HANLDE_TYPE_PIPE;
+ break;
+ case FILE_TYPE_UNKNOWN:
+ if ( (GetLastError () == NO_ERROR) ||
+ (GetLastError () == ERROR_INVALID_HANDLE) )
+ {
+ if (0 != ResetEvent (osfh))
+ ftype = GNUNET_DISK_HANLDE_TYPE_EVENT;
+ else
+ return NULL;
+ }
+ else
+ return NULL;
+ break;
+ default:
return NULL;
+ }
-#if MINGW
- osfh = _get_osfhandle (fno);
- if (osfh == INVALID_HANDLE_VALUE)
- return NULL;
+ fh = GNUNET_new (struct GNUNET_DISK_FileHandle);
+
+ fh->h = osfh;
+ fh->type = ftype;
+ if (ftype == GNUNET_DISK_HANLDE_TYPE_PIPE)
+ {
+ /**
+ * Note that we can't make it overlapped if it isn't already.
+ * (ReOpenFile() is only available in 2003/Vista).
+ * The process that opened this file in the first place (usually a parent
+ * process, if this is stdin/stdout/stderr) must make it overlapped,
+ * otherwise we're screwed, as selecting on non-overlapped handle
+ * will block.
+ */
+ fh->oOverlapRead = GNUNET_new (OVERLAPPED);
+ fh->oOverlapWrite = GNUNET_new (OVERLAPPED);
+ fh->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ fh->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ }
+
+ return fh;
+}
#endif
- fh = GNUNET_malloc (sizeof (struct GNUNET_DISK_FileHandle));
+/**
+ * Get a handle from a native integer FD.
+ *
+ * @param fno native integer file descriptor
+ * @return file handle corresponding to the descriptor, NULL on error
+ */
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_get_handle_from_int_fd (int fno)
+{
+ struct GNUNET_DISK_FileHandle *fh;
+
+ if ( (((off_t) -1) == lseek (fno, 0, SEEK_CUR)) &&
+ (EBADF == errno) )
+ return NULL; /* invalid FD */
+
+#ifndef WINDOWS
+ fh = GNUNET_new (struct GNUNET_DISK_FileHandle);
-#if MINGW
- fh->h = osfh;
- /* Assume it to be a pipe. TODO: use some kind of detection
- * function to figure out handle type.
- * Note that we can't make it overlapped if it isn't already.
- * (ReOpenFile() is only available in 2003/Vista).
- * The process that opened this file in the first place (usually a parent
- * process, if this is stdin/stdout/stderr) must make it overlapped,
- * otherwise we're screwed, as selecting on non-overlapped handle
- * will block.
- */
- fh->type = GNUNET_PIPE;
- fh->oOverlapRead = GNUNET_malloc (sizeof (OVERLAPPED));
- fh->oOverlapWrite = GNUNET_malloc (sizeof (OVERLAPPED));
- fh->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
- fh->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
-#else
fh->fd = fno;
+#else
+ intptr_t osfh;
+
+ osfh = _get_osfhandle (fno);
+ if (INVALID_HANDLE_VALUE == (HANDLE) osfh)
+ return NULL;
+
+ fh = GNUNET_DISK_get_handle_from_w32_handle ((HANDLE) osfh);
#endif
return fh;
/**
- * Construct full path to a file inside of the private
- * directory used by GNUnet. Also creates the corresponding
- * directory. If the resulting name is supposed to be
- * a directory, end the last argument in '/' (or pass
- * DIR_SEPARATOR_STR as the last argument before NULL).
+ * Get a handle from a native streaming FD.
*
- * @param cfg configuration to use (determines HOME)
- * @param serviceName name of the service
- * @param ... is NULL-terminated list of
- * path components to append to the
- * private directory name.
- * @return the constructed filename
+ * @param fd native streaming file descriptor
+ * @return file handle corresponding to the descriptor
*/
-char *
-GNUNET_DISK_get_home_filename (const struct GNUNET_CONFIGURATION_Handle *cfg,
- const char *serviceName, ...)
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_get_handle_from_native (FILE *fd)
{
- const char *c;
- char *pfx;
- char *ret;
- va_list ap;
- unsigned int needed;
+ int fno;
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (cfg, serviceName, "HOME", &pfx))
- return NULL;
- if (pfx == NULL)
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- _("No `%s' specified for service `%s' in configuration.\n"), "HOME",
- serviceName);
+ fno = fileno (fd);
+ if (-1 == fno)
return NULL;
- }
- needed = strlen (pfx) + 2;
- if ((pfx[strlen (pfx) - 1] != '/') && (pfx[strlen (pfx) - 1] != '\\'))
- needed++;
- va_start (ap, serviceName);
- while (1)
- {
- c = va_arg (ap, const char *);
-
- if (c == NULL)
- break;
- needed += strlen (c);
- if ((c[strlen (c) - 1] != '/') && (c[strlen (c) - 1] != '\\'))
- needed++;
- }
- va_end (ap);
- ret = GNUNET_malloc (needed);
- strcpy (ret, pfx);
- GNUNET_free (pfx);
- va_start (ap, serviceName);
- while (1)
- {
- c = va_arg (ap, const char *);
- if (c == NULL)
- break;
- if ((c[strlen (c) - 1] != '/') && (c[strlen (c) - 1] != '\\'))
- strcat (ret, DIR_SEPARATOR_STR);
- strcat (ret, c);
- }
- va_end (ap);
- if ((ret[strlen (ret) - 1] != '/') && (ret[strlen (ret) - 1] != '\\'))
- (void) GNUNET_DISK_directory_create_for_file (ret);
- else
- (void) GNUNET_DISK_directory_create (ret);
- return ret;
+ return GNUNET_DISK_get_handle_from_int_fd (fno);
}
return NULL;
}
- *m = GNUNET_malloc (sizeof (struct GNUNET_DISK_MapHandle));
+ *m = GNUNET_new (struct GNUNET_DISK_MapHandle);
(*m)->h = CreateFileMapping (h->h, NULL, protect, 0, 0, NULL);
if ((*m)->h == INVALID_HANDLE_VALUE)
{
prot = PROT_READ;
if (access & GNUNET_DISK_MAP_TYPE_WRITE)
prot |= PROT_WRITE;
- *m = GNUNET_malloc (sizeof (struct GNUNET_DISK_MapHandle));
+ *m = GNUNET_new (struct GNUNET_DISK_MapHandle);
(*m)->addr = mmap (NULL, len, prot, MAP_SHARED, h->fd, 0);
GNUNET_assert (NULL != (*m)->addr);
if (MAP_FAILED == (*m)->addr)
#if WINDOWS
+#ifndef PIPE_BUF
+#define PIPE_BUF 512
+#endif
/* Copyright Bob Byrnes <byrnes <at> curl.com>
http://permalink.gmane.org/gmane.os.cygwin.patches/2121
*/
/* Default to error. */
*read_pipe_ptr = *write_pipe_ptr = INVALID_HANDLE_VALUE;
- HANDLE read_pipe = INVALID_HANDLE_VALUE, write_pipe = INVALID_HANDLE_VALUE;
+ HANDLE read_pipe;
+ HANDLE write_pipe;
/* Ensure that there is enough pipe buffer space for atomic writes. */
if (psize < PIPE_BUF)
* a waste, since only a single direction is actually used.
* It's important to only allow a single instance, to ensure that
* the pipe was not created earlier by some other process, even if
- * the pid has been reused. We avoid FILE_FLAG_FIRST_PIPE_INSTANCE
- * because that is only available for Win2k SP2 and WinXP. */
- read_pipe = CreateNamedPipeA (pipename, PIPE_ACCESS_INBOUND | dwReadMode, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 1, /* max instances */
+ * the pid has been reused. */
+ read_pipe = CreateNamedPipeA (pipename, PIPE_ACCESS_INBOUND | FILE_FLAG_FIRST_PIPE_INSTANCE | dwReadMode, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 1, /* max instances */
psize, /* output buffer size */
psize, /* input buffer size */
NMPWAIT_USE_DEFAULT_WAIT, sa_ptr);
* @return handle to the new pipe, NULL on error
*/
struct GNUNET_DISK_PipeHandle *
-GNUNET_DISK_pipe (int blocking_read, int blocking_write, int inherit_read, int inherit_write)
+GNUNET_DISK_pipe (int blocking_read,
+ int blocking_write,
+ int inherit_read,
+ int inherit_write)
{
#ifndef MINGW
int fd[2];
int ret;
int eno;
+ (void) inherit_read;
+ (void) inherit_write;
ret = pipe (fd);
if (ret == -1)
{
eno = errno;
- LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR, "pipe");
+ LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR,
+ "pipe");
errno = eno;
return NULL;
}
fd);
#else
struct GNUNET_DISK_PipeHandle *p;
- struct GNUNET_DISK_FileHandle *fds;
BOOL ret;
HANDLE tmp_handle;
-
+ int save_errno;
- p = GNUNET_malloc (sizeof (struct GNUNET_DISK_PipeHandle) +
- 2 * sizeof (struct GNUNET_DISK_FileHandle));
- fds = (struct GNUNET_DISK_FileHandle *) &p[1];
- p->fd[0] = &fds[0];
- p->fd[1] = &fds[1];
+ p = GNUNET_new (struct GNUNET_DISK_PipeHandle);
+ p->fd[0] = GNUNET_new (struct GNUNET_DISK_FileHandle);
+ p->fd[1] = GNUNET_new (struct GNUNET_DISK_FileHandle);
/* All pipes are overlapped. If you want them to block - just
* call WriteFile() and ReadFile() with NULL overlapped pointer.
+ * NOTE: calling with NULL overlapped pointer works only
+ * for pipes, and doesn't seem to be a documented feature.
+ * It will NOT work for files, because overlapped files need
+ * to read offsets from the overlapped structure, regardless.
+ * Pipes are not seekable, and need no offsets, which is
+ * probably why it works for them.
*/
ret =
create_selectable_pipe (&p->fd[0]->h, &p->fd[1]->h, NULL, 0,
FILE_FLAG_OVERLAPPED);
if (!ret)
{
- GNUNET_free (p);
SetErrnoFromWinError (GetLastError ());
+ save_errno = errno;
+ GNUNET_free (p->fd[0]);
+ GNUNET_free (p->fd[1]);
+ GNUNET_free (p);
+ errno = save_errno;
return NULL;
}
if (!DuplicateHandle
inherit_read == GNUNET_YES ? TRUE : FALSE, DUPLICATE_SAME_ACCESS))
{
SetErrnoFromWinError (GetLastError ());
+ save_errno = errno;
CloseHandle (p->fd[0]->h);
CloseHandle (p->fd[1]->h);
+ GNUNET_free (p->fd[0]);
+ GNUNET_free (p->fd[1]);
GNUNET_free (p);
+ errno = save_errno;
return NULL;
}
CloseHandle (p->fd[0]->h);
inherit_write == GNUNET_YES ? TRUE : FALSE, DUPLICATE_SAME_ACCESS))
{
SetErrnoFromWinError (GetLastError ());
+ save_errno = errno;
CloseHandle (p->fd[0]->h);
CloseHandle (p->fd[1]->h);
+ GNUNET_free (p->fd[0]);
+ GNUNET_free (p->fd[1]);
GNUNET_free (p);
+ errno = save_errno;
return NULL;
}
CloseHandle (p->fd[1]->h);
p->fd[1]->h = tmp_handle;
- p->fd[0]->type = GNUNET_PIPE;
- p->fd[1]->type = GNUNET_PIPE;
+ p->fd[0]->type = GNUNET_DISK_HANLDE_TYPE_PIPE;
+ p->fd[1]->type = GNUNET_DISK_HANLDE_TYPE_PIPE;
- p->fd[0]->oOverlapRead = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[0]->oOverlapWrite = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[1]->oOverlapRead = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[1]->oOverlapWrite = GNUNET_malloc (sizeof (OVERLAPPED));
+ p->fd[0]->oOverlapRead = GNUNET_new (OVERLAPPED);
+ p->fd[0]->oOverlapWrite = GNUNET_new (OVERLAPPED);
+ p->fd[1]->oOverlapRead = GNUNET_new (OVERLAPPED);
+ p->fd[1]->oOverlapWrite = GNUNET_new (OVERLAPPED);
p->fd[0]->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
p->fd[0]->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
GNUNET_DISK_pipe_from_fd (int blocking_read, int blocking_write, int fd[2])
{
struct GNUNET_DISK_PipeHandle *p;
- struct GNUNET_DISK_FileHandle *fds;
- p = GNUNET_malloc (sizeof (struct GNUNET_DISK_PipeHandle) +
- 2 * sizeof (struct GNUNET_DISK_FileHandle));
- fds = (struct GNUNET_DISK_FileHandle *) &p[1];
- p->fd[0] = &fds[0];
- p->fd[1] = &fds[1];
+ p = GNUNET_new (struct GNUNET_DISK_PipeHandle);
+
#ifndef MINGW
int ret;
int flags;
int eno = 0; /* make gcc happy */
- p->fd[0]->fd = fd[0];
- p->fd[1]->fd = fd[1];
ret = 0;
if (fd[0] >= 0)
{
+ p->fd[0] = GNUNET_new (struct GNUNET_DISK_FileHandle);
+ p->fd[0]->fd = fd[0];
if (!blocking_read)
{
flags = fcntl (fd[0], F_GETFL);
if (fd[1] >= 0)
{
+ p->fd[1] = GNUNET_new (struct GNUNET_DISK_FileHandle);
+ p->fd[1]->fd = fd[1];
if (!blocking_write)
{
flags = fcntl (fd[1], F_GETFL);
GNUNET_break (0 == close (p->fd[0]->fd));
if (p->fd[1]->fd >= 0)
GNUNET_break (0 == close (p->fd[1]->fd));
+ GNUNET_free_non_null (p->fd[0]);
+ GNUNET_free_non_null (p->fd[1]);
GNUNET_free (p);
errno = eno;
return NULL;
}
#else
if (fd[0] >= 0)
+ {
+ p->fd[0] = GNUNET_new (struct GNUNET_DISK_FileHandle);
p->fd[0]->h = (HANDLE) _get_osfhandle (fd[0]);
- else
- p->fd[0]->h = INVALID_HANDLE_VALUE;
+ if (p->fd[0]->h != INVALID_HANDLE_VALUE)
+ {
+ p->fd[0]->type = GNUNET_DISK_HANLDE_TYPE_PIPE;
+ p->fd[0]->oOverlapRead = GNUNET_new (OVERLAPPED);
+ p->fd[0]->oOverlapWrite = GNUNET_new (OVERLAPPED);
+ p->fd[0]->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ p->fd[0]->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ }
+ else
+ {
+ GNUNET_free (p->fd[0]);
+ p->fd[0] = NULL;
+ }
+ }
if (fd[1] >= 0)
- p->fd[1]->h = (HANDLE) _get_osfhandle (fd[1]);
- else
- p->fd[1]->h = INVALID_HANDLE_VALUE;
-
- if (p->fd[0]->h != INVALID_HANDLE_VALUE)
{
- p->fd[0]->type = GNUNET_PIPE;
- p->fd[0]->oOverlapRead = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[0]->oOverlapWrite = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[0]->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
- p->fd[0]->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ p->fd[1] = GNUNET_new (struct GNUNET_DISK_FileHandle);
+ p->fd[1]->h = (HANDLE) _get_osfhandle (fd[1]);
+ if (p->fd[1]->h != INVALID_HANDLE_VALUE)
+ {
+ p->fd[1]->type = GNUNET_DISK_HANLDE_TYPE_PIPE;
+ p->fd[1]->oOverlapRead = GNUNET_new (OVERLAPPED);
+ p->fd[1]->oOverlapWrite = GNUNET_new (OVERLAPPED);
+ p->fd[1]->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ p->fd[1]->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
+ }
+ else
+ {
+ GNUNET_free (p->fd[1]);
+ p->fd[1] = NULL;
+ }
}
- if (p->fd[1]->h != INVALID_HANDLE_VALUE)
- {
- p->fd[1]->type = GNUNET_PIPE;
- p->fd[1]->oOverlapRead = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[1]->oOverlapWrite = GNUNET_malloc (sizeof (OVERLAPPED));
- p->fd[1]->oOverlapRead->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
- p->fd[1]->oOverlapWrite->hEvent = CreateEvent (NULL, FALSE, FALSE, NULL);
- }
#endif
return p;
}
enum GNUNET_DISK_PipeEnd end)
{
int ret = GNUNET_OK;
- int save;
-#ifdef MINGW
if (end == GNUNET_DISK_PIPE_END_READ)
{
- if (p->fd[0]->h != INVALID_HANDLE_VALUE)
+ if (p->fd[0])
{
- if (!CloseHandle (p->fd[0]->h))
- {
- SetErrnoFromWinError (GetLastError ());
- ret = GNUNET_SYSERR;
- }
- GNUNET_free (p->fd[0]->oOverlapRead);
- GNUNET_free (p->fd[0]->oOverlapWrite);
- p->fd[0]->h = INVALID_HANDLE_VALUE;
+ ret = GNUNET_DISK_file_close (p->fd[0]);
+ p->fd[0] = NULL;
}
}
else if (end == GNUNET_DISK_PIPE_END_WRITE)
{
- if (p->fd[0]->h != INVALID_HANDLE_VALUE)
+ if (p->fd[1])
{
- if (!CloseHandle (p->fd[1]->h))
- {
- SetErrnoFromWinError (GetLastError ());
- ret = GNUNET_SYSERR;
- }
- GNUNET_free (p->fd[1]->oOverlapRead);
- GNUNET_free (p->fd[1]->oOverlapWrite);
- p->fd[1]->h = INVALID_HANDLE_VALUE;
+ ret = GNUNET_DISK_file_close (p->fd[1]);
+ p->fd[1] = NULL;
}
}
- save = errno;
-#else
- save = 0;
+
+ return ret;
+}
+
+/**
+ * Detaches one of the ends from the pipe.
+ * Detached end is a fully-functional FileHandle, it will
+ * not be affected by anything you do with the pipe afterwards.
+ * Each end of a pipe can only be detched from it once (i.e.
+ * it is not duplicated).
+ *
+ * @param p pipe to detach an end from
+ * @param end which end of the pipe to detach
+ * @return Detached end on success, NULL on failure
+ * (or if that end is not present or is closed).
+ */
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_pipe_detach_end (struct GNUNET_DISK_PipeHandle *p,
+ enum GNUNET_DISK_PipeEnd end)
+{
+ struct GNUNET_DISK_FileHandle *ret = NULL;
+
if (end == GNUNET_DISK_PIPE_END_READ)
{
- if (0 != close (p->fd[0]->fd))
+ if (p->fd[0])
{
- ret = GNUNET_SYSERR;
- save = errno;
+ ret = p->fd[0];
+ p->fd[0] = NULL;
}
- p->fd[0]->fd = -1;
}
else if (end == GNUNET_DISK_PIPE_END_WRITE)
{
- if (0 != close (p->fd[1]->fd))
+ if (p->fd[1])
{
- ret = GNUNET_SYSERR;
- save = errno;
+ ret = p->fd[1];
+ p->fd[1] = NULL;
}
- p->fd[1]->fd = -1;
}
-#endif
- errno = save;
+
return ret;
}
GNUNET_DISK_pipe_close (struct GNUNET_DISK_PipeHandle *p)
{
int ret = GNUNET_OK;
- int save;
-#ifdef MINGW
- if (p->fd[0]->h != INVALID_HANDLE_VALUE)
- {
- if (!CloseHandle (p->fd[0]->h))
- {
- SetErrnoFromWinError (GetLastError ());
- ret = GNUNET_SYSERR;
- }
- GNUNET_free (p->fd[0]->oOverlapRead);
- GNUNET_free (p->fd[0]->oOverlapWrite);
- }
- if (p->fd[1]->h != INVALID_HANDLE_VALUE)
+ int read_end_close;
+ int write_end_close;
+ int read_end_close_errno;
+ int write_end_close_errno;
+
+ read_end_close = GNUNET_DISK_pipe_close_end (p, GNUNET_DISK_PIPE_END_READ);
+ read_end_close_errno = errno;
+ write_end_close = GNUNET_DISK_pipe_close_end (p, GNUNET_DISK_PIPE_END_WRITE);
+ write_end_close_errno = errno;
+ GNUNET_free (p);
+
+ if (GNUNET_OK != read_end_close)
{
- if (!CloseHandle (p->fd[1]->h))
- {
- SetErrnoFromWinError (GetLastError ());
- ret = GNUNET_SYSERR;
- }
- GNUNET_free (p->fd[1]->oOverlapRead);
- GNUNET_free (p->fd[1]->oOverlapWrite);
+ errno = read_end_close_errno;
+ ret = read_end_close;
}
- save = errno;
-#else
- save = 0;
- if (p->fd[0]->fd != -1)
+ else if (GNUNET_OK != write_end_close)
{
- if (0 != close (p->fd[0]->fd))
- {
- ret = GNUNET_SYSERR;
- save = errno;
- }
+ errno = write_end_close_errno;
+ ret = write_end_close;
}
- if (p->fd[1]->fd != -1)
- {
- if (0 != close (p->fd[1]->fd))
- {
- ret = GNUNET_SYSERR;
- save = errno;
- }
- }
-#endif
- GNUNET_free (p);
- errno = save;
return ret;
}
* @param fh GNUnet file descriptor
* @param dst destination buffer
* @param dst_len length of dst
- * @return GNUNET_OK on success, GNUNET_SYSERR otherwise
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR otherwise
*/
int
GNUNET_DISK_internal_file_handle_ (const struct GNUNET_DISK_FileHandle *fh,
void *dst, size_t dst_len)
{
+ if (NULL == fh)
+ return GNUNET_SYSERR;
#ifdef MINGW
if (dst_len < sizeof (HANDLE))
return GNUNET_SYSERR;
return GNUNET_OK;
}
+
+/**
+ * Remove the directory given under @a option in
+ * section [PATHS] in configuration under @a cfg_filename
+ *
+ * @param cfg_filename configuration file to parse
+ * @param option option with the dir name to purge
+ */
+void
+GNUNET_DISK_purge_cfg_dir (const char *cfg_filename,
+ const char *option)
+{
+ struct GNUNET_CONFIGURATION_Handle *cfg;
+ char *tmpname;
+
+ cfg = GNUNET_CONFIGURATION_create ();
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_load (cfg,
+ cfg_filename))
+ {
+ GNUNET_break (0);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ return;
+ }
+ if (GNUNET_OK !=
+ GNUNET_CONFIGURATION_get_value_filename (cfg,
+ "PATHS",
+ option,
+ &tmpname))
+ {
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+ "PATHS",
+ option);
+ GNUNET_CONFIGURATION_destroy (cfg);
+ return;
+ }
+ GNUNET_CONFIGURATION_destroy (cfg);
+ if (GNUNET_SYSERR ==
+ GNUNET_DISK_directory_remove (tmpname))
+ {
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+ "remove",
+ tmpname);
+ GNUNET_free (tmpname);
+ return;
+ }
+ GNUNET_free (tmpname);
+}
+
+
+
/* end of disk.c */
projects / oweals / gnunet.git / blobdiff