mdw@git.distorted.org.uk Git - dpkg/blob - lib/dpkg/fdio.h

   1 /*
   2  * libdpkg - Debian packaging suite library routines
   3  * fdio.h - safe file descriptor based input/output
   4  *
   5  * Copyright © 2009-2010 Guillem Jover <guillem@debian.org>
   6  *
   7  * This is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef LIBDPKG_FDIO_H
  22 #define LIBDPKG_FDIO_H
  23
  24 #include <sys/types.h>
  25
  26 #include <dpkg/macros.h>
  27
  28 DPKG_BEGIN_DECLS
  29
  30 int shadowed_fd_p(int fd);
  31 void save_copy(const char *path, const char *label, const char *ext);
  32 void save_shadow(const char *label, const char *ext);
  33 void open_shadow(int fd, const char *label);
  34 void close_shadow(int fd);
  35
  36 /**
  37  * @defgroup fdio File descriptor I/O
  38  * @ingroup dpkg-internal
  39  * @{
  40  */
  41
  42 ssize_t fd_read(int fd, void *buf, size_t len);
  43 ssize_t fd_write(int fd, const void *buf, size_t len);
  44
  45 int
  46 fd_allocate_size(int fd, off_t offset, off_t len);
  47
  48 /** @} */
  49
  50 DPKG_END_DECLS
  51
  52 #endif /* LIBDPKG_FDIO_H */