common: New functions gnupg_opendir et al.

* common/sysutils.h (struct gnupg_dirent_s): New.
* common/sysutils.c: Include dirent.h.
(struct gnupg_dir_s): New.
(gnupg_opendir, gnupg_readdir, gnupg_closedir): New.  Change all
callers of opendir, readdir, and closedir to use these functions.
--

GnuPG-bug-id: 5098

1 files changed, 18 insertions, 0 deletions

diff --git a/common/sysutils.h b/common/sysutils.h
index eee4cf5b6..13e781587 100644
--- a/common/sysutils.h
+++ b/common/sysutils.h
@@ -50,6 +50,19 @@ typedef int gnupg_fd_t;
 # include <sys/stat.h>
 #endif
 
+struct gnupg_dir_s;
+typedef struct gnupg_dir_s *gnupg_dir_t;
+struct gnupg_dirent_s
+{
+  /* We don't have a d_ino because that can't be used on Windows
+   * anyway.  D_NAME is a pointer into the gnupg_dir_s which has a
+   * static buffer or allocates sufficient space as needed.  This is
+   * only valid after gnupg_readdir. */
+  char *d_name;
+};
+typedef struct gnupg_dirent_s *gnupg_dirent_t;
+
+
 void trap_unaligned (void);
 int  disable_core_dumps (void);
 int  enable_core_dumps (void);
@@ -81,6 +94,11 @@ gpg_err_code_t gnupg_access (const char *name, int mode);
 int gnupg_stat (const char *name, struct stat *statbuf);
 #endif /*HAVE_STAT*/
 int gnupg_open (const char *name, int flags, unsigned int mode);
+
+gnupg_dir_t gnupg_opendir (const char *name);
+gnupg_dirent_t gnupg_readdir (gnupg_dir_t gdir);
+int gnupg_closedir (gnupg_dir_t gdir);
+
 gpg_error_t gnupg_chuid (const char *user, int silent);
 char *gnupg_get_socket_name (int fd);
 int gnupg_fd_valid (int fd);