#include <assert.h>
#include <stdio.h>
+#include <limits.h> /* NAME_MAX */
+#if !defined(NAME_MAX) && defined(_POSIX_NAME_MAX)
+# define NAME_MAX _POSIX_NAME_MAX
+#endif
#include <errno.h>
#include <sys/types.h>
#ifdef HAVE_DIRENT_H
# include <dirent.h>
#endif
-#ifdef UNDER_CE
-# include <tchar.h>
-#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#endif
#ifdef WIN32
# include <io.h>
+# include <winsock2.h>
# ifndef UNDER_CE
# include <direct.h>
+# else
+# include <tchar.h>
# endif
#else
# include <unistd.h>
+# include <sys/socket.h>
#endif
#ifndef HAVE_LSTAT
return stream;
}
+/**
+ * Opens a system file handle relative to an existing directory handle.
+ *
+ * @param dir directory file descriptor
+ * @param filename file path to open (with UTF-8 encoding)
+ * @param flags open() flags, see the C library open() documentation
+ * @return a file handle on success, -1 on error (see errno).
+ * @note Contrary to standard open(), this function returns file handles
+ * with the close-on-exec flag enabled.
+ */
+int vlc_openat (int dir, const char *filename, int flags, ...)
+{
+ unsigned int mode = 0;
+ va_list ap;
+
+ va_start (ap, flags);
+ if (flags & O_CREAT)
+ mode = va_arg (ap, unsigned int);
+ va_end (ap);
+
+#ifdef O_CLOEXEC
+ flags |= O_CLOEXEC;
+#endif
+
+ const char *local_name = ToLocale (filename);
+ if (local_name == NULL)
+ {
+ errno = ENOENT;
+ return -1;
+ }
+
+#ifdef HAVE_OPENAT
+ int fd = openat (dir, local_name, flags, mode);
+# ifdef HAVE_FCNTL
+ if (fd != -1)
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+# endif
+#else
+ int fd = -1;
+ errno = ENOSYS;
+#endif
+
+ LocaleFree (local_name);
+ return fd;
+}
+
+
/**
* Creates a directory using UTF-8 paths.
*
return FromWide (ent->d_name);
#else
struct dirent *ent;
-
- ent = readdir( (DIR *)dir );
- if( ent == NULL )
+ struct
+ {
+ struct dirent ent;
+ char buf[NAME_MAX + 1];
+ } buf;
+ int val = readdir_r (dir, &buf.ent, &ent);
+ if (val)
+ {
+ errno = val;
return NULL;
-
- return vlc_fix_readdir( ent->d_name );
+ }
+ return ent ? vlc_fix_readdir( ent->d_name ) : NULL;
#endif
}
* Selects file entries from a directory, as GNU C scandir().
*
* @param dirname UTF-8 diretory path
- * @param pointer [OUT] pointer set, on succesful completion, to the address
+ * @param pointer [OUT] pointer set, on successful completion, to the address
* of a table of UTF-8 filenames. All filenames must be freed with free().
* The table itself must be freed with free() as well.
*
*
* @param filename UTF-8 file path
*/
-int utf8_lstat( const char *filename, struct stat *buf)
+int vlc_lstat( const char *filename, struct stat *buf)
{
return vlc_statEx( filename, buf, false );
}
else
return -1;
#else
- return _wrename (wold, wnew);
+ if (_wrename (wold, wnew) && errno == EACCES)
+ { /* Windows does not allow atomic file replacement */
+ if (_wremove (wnew))
+ {
+ errno = EACCES; /* restore errno */
+ return -1;
+ }
+ if (_wrename (wold, wnew))
+ return -1;
+ }
+ return 0;
#endif
#endif
#endif
return newfd;
}
+
+#include <vlc_network.h>
+
+/**
+ * Creates a socket file descriptor. The new file descriptor has the
+ * close-on-exec flag set.
+ * @param pf protocol family
+ * @param type socket type
+ * @param proto network protocol
+ * @param nonblock true to create a non-blocking socket
+ * @return a new file descriptor or -1
+ */
+int vlc_socket (int pf, int type, int proto, bool nonblock)
+{
+ int fd;
+
+#ifdef SOCK_CLOEXEC
+ type |= SOCK_CLOEXEC;
+ if (nonblock)
+ type |= SOCK_NONBLOCK;
+ fd = socket (pf, type, proto);
+ if (fd != -1 || errno != EINVAL)
+ return fd;
+
+ type &= ~(SOCK_CLOEXEC|SOCK_NONBLOCK);
+#endif
+
+ fd = socket (pf, type, proto);
+ if (fd == -1)
+ return -1;
+
+#ifndef WIN32
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+ if (nonblock)
+ fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, 0) | O_NONBLOCK);
+#else
+ if (nonblock)
+ ioctlsocket (fd, FIONBIO, &(unsigned long){ 1 });
+#endif
+ return fd;
+}
+
+/**
+ * Accepts an inbound connection request on a listening socket.
+ * The new file descriptor has the close-on-exec flag set.
+ * @param lfd listening socket file descriptor
+ * @param addr pointer to the peer address or NULL [OUT]
+ * @param alen pointer to the length of the peer address or NULL [OUT]
+ * @param nonblock whether to put the new socket in non-blocking mode
+ * @return a new file descriptor, or -1 on error.
+ */
+int vlc_accept (int lfd, struct sockaddr *addr, socklen_t *alen, bool nonblock)
+{
+#ifdef HAVE_ACCEPT4
+ int flags = SOCK_CLOEXEC;
+ if (nonblock)
+ flags |= SOCK_NONBLOCK;
+
+ do
+ {
+ int fd = accept4 (lfd, addr, alen, flags);
+ if (fd != -1)
+ return fd;
+ }
+ while (errno == EINTR);
+
+ if (errno != ENOSYS)
+ return -1;
+#endif
+#ifdef WIN32
+ errno = 0;
+#endif
+
+ do
+ {
+ int fd = accept (lfd, addr, alen);
+ if (fd != -1)
+ {
+#ifndef WIN32
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+ if (nonblock)
+ fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, 0) | O_NONBLOCK);
+#else
+ if (nonblock)
+ ioctlsocket (fd, FIONBIO, &(unsigned long){ 1 });
+#endif
+ return fd;
+ }
+ }
+ while (errno == EINTR);
+
+ return -1;
+}