#include "gnunet_disk_lib.h"
#include "gnunet_scheduler_lib.h"
#include "gnunet_strings_lib.h"
+#include "gnunet_crypto_lib.h"
#include "disk.h"
+#define DEBUG_NPIPE GNUNET_YES
/**
* Block size for IO for copying files.
};
+int translate_unix_perms(enum GNUNET_DISK_AccessPermissions perm)
+{
+ int mode;
+
+ mode = 0;
+ if (perm & GNUNET_DISK_PERM_USER_READ)
+ mode |= S_IRUSR;
+ if (perm & GNUNET_DISK_PERM_USER_WRITE)
+ mode |= S_IWUSR;
+ if (perm & GNUNET_DISK_PERM_USER_EXEC)
+ mode |= S_IXUSR;
+ if (perm & GNUNET_DISK_PERM_GROUP_READ)
+ mode |= S_IRGRP;
+ if (perm & GNUNET_DISK_PERM_GROUP_WRITE)
+ mode |= S_IWGRP;
+ if (perm & GNUNET_DISK_PERM_GROUP_EXEC)
+ mode |= S_IXGRP;
+ if (perm & GNUNET_DISK_PERM_OTHER_READ)
+ mode |= S_IROTH;
+ if (perm & GNUNET_DISK_PERM_OTHER_WRITE)
+ mode |= S_IWOTH;
+ if (perm & GNUNET_DISK_PERM_OTHER_EXEC)
+ mode |= S_IXOTH;
+
+ return mode;
+}
+
+
/**
* Iterate over all files in the given directory and
* accumulate their size.
*/
struct GNUNET_DISK_DirectoryIterator
{
- /**
- * Our scheduler.
- */
- struct GNUNET_SCHEDULER_Handle *sched;
/**
* Function to call on directory entries.
GNUNET_DISK_directory_iterator_next (iter, GNUNET_YES);
return GNUNET_NO;
}
- GNUNET_SCHEDULER_add_with_priority (iter->sched,
- iter->priority,
+ GNUNET_SCHEDULER_add_with_priority (iter->priority,
&directory_iterator_task, iter);
return GNUNET_YES;
}
* If a scheduler does not need to be used, GNUNET_DISK_directory_scan
* may provide a simpler API.
*
- * @param sched scheduler to use
* @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
*/
void
-GNUNET_DISK_directory_iterator_start (struct GNUNET_SCHEDULER_Handle *sched,
- enum GNUNET_SCHEDULER_Priority prio,
+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->sched = sched;
di->callback = callback;
di->callback_cls = callback_cls;
di->directory = OPENDIR (dirName);
{
(void) GNUNET_DISK_directory_create_for_file (expfn);
oflags |= O_CREAT;
- if (perm & GNUNET_DISK_PERM_USER_READ)
- mode |= S_IRUSR;
- if (perm & GNUNET_DISK_PERM_USER_WRITE)
- mode |= S_IWUSR;
- if (perm & GNUNET_DISK_PERM_USER_EXEC)
- mode |= S_IXUSR;
- if (perm & GNUNET_DISK_PERM_GROUP_READ)
- mode |= S_IRGRP;
- if (perm & GNUNET_DISK_PERM_GROUP_WRITE)
- mode |= S_IWGRP;
- if (perm & GNUNET_DISK_PERM_GROUP_EXEC)
- mode |= S_IXGRP;
- if (perm & GNUNET_DISK_PERM_OTHER_READ)
- mode |= S_IROTH;
- if (perm & GNUNET_DISK_PERM_OTHER_WRITE)
- mode |= S_IWOTH;
- if (perm & GNUNET_DISK_PERM_OTHER_EXEC)
- mode |= S_IXOTH;
+ mode = translate_unix_perms(perm);
}
fd = open (expfn, oflags | O_LARGEFILE, mode);
ret = GNUNET_malloc (sizeof (struct GNUNET_DISK_FileHandle));
#ifdef MINGW
ret->h = h;
+ ret->type = GNUNET_DISK_FILE;
#else
ret->fd = fd;
#endif
}
va_end (ap);
if ((ret[strlen (ret) - 1] != '/') && (ret[strlen (ret) - 1] != '\\'))
- GNUNET_DISK_directory_create_for_file (ret);
+ (void) GNUNET_DISK_directory_create_for_file (ret);
else
- GNUNET_DISK_directory_create (ret);
+ (void) GNUNET_DISK_directory_create (ret);
return ret;
}
*/
struct GNUNET_DISK_MapHandle
{
+ /**
+ * Address where the map is in memory.
+ */
+ void *addr;
+
#ifdef MINGW
/**
* Underlying OS handle.
*/
HANDLE h;
#else
- /**
- * Address where the map is in memory.
- */
- void *addr;
-
/**
* Number of bytes mapped.
*/
#ifdef MINGW
DWORD mapAccess, protect;
- void *ret;
if ((access & GNUNET_DISK_MAP_TYPE_READ) &&
(access & GNUNET_DISK_MAP_TYPE_WRITE))
return NULL;
}
- ret = MapViewOfFile ((*m)->h, mapAccess, 0, 0, len);
- if (!ret)
+ (*m)->addr = MapViewOfFile ((*m)->h, mapAccess, 0, 0, len);
+ if (!(*m)->addr)
{
SetErrnoFromWinError (GetLastError ());
CloseHandle ((*m)->h);
GNUNET_free (*m);
}
- return ret;
+ return (*m)->addr;
#else
int prot;
}
#ifdef MINGW
- ret = UnmapViewOfFile (h->h) ? GNUNET_OK : GNUNET_SYSERR;
+ ret = UnmapViewOfFile (h->addr) ? GNUNET_OK : GNUNET_SYSERR;
if (ret != GNUNET_OK)
SetErrnoFromWinError (GetLastError ());
if (!CloseHandle (h->h) && (ret == GNUNET_OK))
#endif
}
+
/**
* Creates an interprocess channel
*
ret = pipe (fd);
if (ret == -1)
{
+ eno = errno;
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "pipe");
GNUNET_free (p);
+ errno = eno;
return NULL;
}
p->fd[0]->fd = fd[0];
p->fd[1]->fd = fd[1];
ret = 0;
flags = fcntl (fd[0], F_GETFL);
- flags |= FD_CLOEXEC;
if (!blocking)
flags |= O_NONBLOCK;
if (0 > fcntl (fd[0], F_SETFL, flags))
ret = -1;
- flags = fcntl (fd[1], F_GETFL);
+ flags = fcntl (fd[0], F_GETFD);
flags |= FD_CLOEXEC;
+ if (0 > fcntl (fd[0], F_SETFD, flags))
+ ret = -1;
+
+ flags = fcntl (fd[1], F_GETFL);
if (!blocking)
flags |= O_NONBLOCK;
if (0 > fcntl (fd[1], F_SETFL, flags))
ret = -1;
+ flags = fcntl (fd[1], F_GETFD);
+ flags |= FD_CLOEXEC;
+ if (0 > fcntl (fd[1], F_SETFD, flags))
+ ret = -1;
if (ret == -1)
{
eno = errno;
SetNamedPipeHandleState (p->fd[1]->h, &mode, NULL, NULL);
/* this always fails on Windows 95, so we don't care about error handling */
}
+ p->fd[0]->type = GNUNET_PIPE;
+ p->fd[1]->type = GNUNET_PIPE;
#endif
return p;
}
}
+/**
+ * Creates a named pipe/FIFO and opens it
+ * @param fn pointer to the name of the named pipe or to NULL
+ * @param flags open flags
+ * @param perm access permissions
+ * @return pipe handle on success, NULL on error
+ */
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_npipe_create (char **fn,
+ enum GNUNET_DISK_OpenFlags flags,
+ enum GNUNET_DISK_AccessPermissions perm)
+{
+#ifdef MINGW
+ struct GNUNET_DISK_FileHandle *ret;
+ HANDLE h = NULL;
+ DWORD openMode;
+ char *name;
+
+ openMode = 0;
+ if (flags & GNUNET_DISK_OPEN_READWRITE)
+ openMode = PIPE_ACCESS_DUPLEX;
+ else if (flags & GNUNET_DISK_OPEN_READ)
+ openMode = PIPE_ACCESS_INBOUND;
+ else if (flags & GNUNET_DISK_OPEN_WRITE)
+ openMode = PIPE_ACCESS_OUTBOUND;
+
+ if (flags & GNUNET_DISK_OPEN_FAILIFEXISTS)
+ openMode |= FILE_FLAG_FIRST_PIPE_INSTANCE;
+
+ while (h == NULL)
+ {
+ DWORD error_code;
+ name = NULL;
+ if (*fn != NULL)
+ {
+ GNUNET_asprintf(&name, "\\\\.\\pipe\\%.246s", fn);
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying to create an instance of named pipe `%s'\n", name);
+#endif
+ h = CreateNamedPipe (name, openMode | FILE_FLAG_OVERLAPPED,
+ PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 2, 1, 1, 0, NULL);
+ }
+ else
+ {
+ GNUNET_asprintf(fn, "\\\\.\\pipe\\gnunet-%llu",
+ GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX));
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Trying to create unique named pipe `%s'\n", *fn);
+#endif
+ h = CreateNamedPipe (*fn, openMode | FILE_FLAG_OVERLAPPED | FILE_FLAG_FIRST_PIPE_INSTANCE,
+ PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, 2, 1, 1, 0, NULL);
+ }
+ error_code = GetLastError ();
+ if (name)
+ GNUNET_free(name);
+ /* don't re-set name to NULL yet */
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ SetErrnoFromWinError(error_code);
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe creation have failed because of %d, errno is %d\n", error_code, errno);
+#endif
+ if (name == NULL)
+ {
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe was to be unique, considering re-creation\n");
+#endif
+ GNUNET_free (*fn);
+ *fn = NULL;
+ if (error_code != ERROR_ACCESS_DENIED && error_code != ERROR_PIPE_BUSY)
+ {
+ return NULL;
+ }
+#if DEBUG_NPIPE
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Pipe name was not unique, trying again\n");
+#endif
+ h = NULL;
+ }
+ else
+ return NULL;
+ }
+ }
+ errno = 0;
+
+ ret = GNUNET_malloc(sizeof(*ret));
+ ret->h = h;
+ ret->type = GNUNET_PIPE;
+
+ return ret;
+#else
+ if (*fn == NULL)
+ {
+ char dir[] = "/tmp/gnunet-pipe-XXXXXX";
+
+ if (mkdtemp(dir) == NULL)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "mkdtemp");
+ return NULL;
+ }
+ GNUNET_asprintf(fn, "%s/child-control", dir);
+ }
+
+ if (mkfifo(*fn, translate_unix_perms(perm)) == -1)
+ {
+ if ( (errno != EEXIST) ||
+ (0 != (flags & GNUNET_DISK_OPEN_FAILIFEXISTS)) )
+ return NULL;
+ }
+
+ flags = flags & (~GNUNET_DISK_OPEN_FAILIFEXISTS);
+ return GNUNET_DISK_file_open(*fn, flags, perm);
+#endif
+}
+
+/**
+ * Opens already existing named pipe/FIFO
+ *
+ * @param fn name of an existing named pipe
+ * @param flags open flags
+ * @param perm access permissions
+ * @return pipe handle on success, NULL on error
+ */
+struct GNUNET_DISK_FileHandle *
+GNUNET_DISK_npipe_open (const char *fn,
+ enum GNUNET_DISK_OpenFlags flags,
+ enum GNUNET_DISK_AccessPermissions perm)
+{
+#ifdef MINGW
+ struct GNUNET_DISK_FileHandle *ret;
+ HANDLE h;
+ DWORD openMode;
+
+ openMode = 0;
+ if (flags & GNUNET_DISK_OPEN_READWRITE)
+ openMode = GENERIC_WRITE | GENERIC_READ;
+ else if (flags & GNUNET_DISK_OPEN_READ)
+ openMode = GENERIC_READ;
+ else if (flags & GNUNET_DISK_OPEN_WRITE)
+ openMode = GENERIC_WRITE;
+
+ h = CreateFile (fn, openMode, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_OVERLAPPED | FILE_READ_ATTRIBUTES, NULL);
+ if (h == INVALID_HANDLE_VALUE)
+ {
+ SetErrnoFromWinError(GetLastError());
+ return NULL;
+ }
+
+ ret = GNUNET_malloc(sizeof(*ret));
+ ret->h = h;
+ ret->type = GNUNET_PIPE;
+
+ return ret;
+#else
+ flags = flags & (~GNUNET_DISK_OPEN_FAILIFEXISTS);
+ return GNUNET_DISK_file_open(fn, flags, perm);
+#endif
+}
+
+/**
+ * Closes a named pipe/FIFO
+ * @param pipe named pipe
+ * @return GNUNET_OK on success, GNUNET_SYSERR otherwise
+ */
+int
+GNUNET_DISK_npipe_close (struct GNUNET_DISK_FileHandle *pipe)
+{
+#ifndef MINGW
+ return close(pipe->fd) == 0 ? GNUNET_OK : GNUNET_SYSERR;
+#else
+ BOOL ret;
+
+ ret = CloseHandle(pipe->h);
+ if (!ret)
+ {
+ SetErrnoFromWinError(GetLastError());
+ return GNUNET_SYSERR;
+ }
+ else
+ return GNUNET_OK;
+#endif
+}
+
+
/**
* Get the handle to a particular pipe end
*
projects / oweals / gnunet.git / blobdiff