Don't assume File-I/O mode bits match the host's format

[deliverable/binutils-gdb.git] / gdb / common / fileio.c

diff --git a/gdb/common/fileio.c b/gdb/common/fileio.c
index ef00ea871e708c0bf21ecf23ddf5b35340032b14..d219f3041c392749fcdf28e6cd491b82d9a10d92 100644 (file)
--- a/gdb/common/fileio.c
+++ b/gdb/common/fileio.c
@@ -109,6 +109,55 @@ fileio_to_host_openflags (int fileio_open_flags, int *open_flags_p)
   return 0;
 }
 
+/* See fileio.h.  */
+
+int
+fileio_to_host_mode (int fileio_mode, mode_t *mode_p)
+{
+  mode_t mode = 0;
+
+  if (fileio_mode & ~FILEIO_S_SUPPORTED)
+    return -1;
+
+  if (fileio_mode & FILEIO_S_IFREG)
+    mode |= S_IFREG;
+  if (fileio_mode & FILEIO_S_IFDIR)
+    mode |= S_IFDIR;
+  if (fileio_mode & FILEIO_S_IFCHR)
+    mode |= S_IFCHR;
+  if (fileio_mode & FILEIO_S_IRUSR)
+    mode |= S_IRUSR;
+  if (fileio_mode & FILEIO_S_IWUSR)
+    mode |= S_IWUSR;
+  if (fileio_mode & FILEIO_S_IXUSR)
+    mode |= S_IXUSR;
+#ifdef S_IRGRP
+  if (fileio_mode & FILEIO_S_IRGRP)
+    mode |= S_IRGRP;
+#endif
+#ifdef S_IWGRP
+  if (fileio_mode & FILEIO_S_IWGRP)
+    mode |= S_IWGRP;
+#endif
+#ifdef S_IXGRP
+  if (fileio_mode & FILEIO_S_IXGRP)
+    mode |= S_IXGRP;
+#endif
+  if (fileio_mode & FILEIO_S_IROTH)
+    mode |= S_IROTH;
+#ifdef S_IWOTH
+  if (fileio_mode & FILEIO_S_IWOTH)
+    mode |= S_IWOTH;
+#endif
+#ifdef S_IXOTH
+  if (fileio_mode & FILEIO_S_IXOTH)
+    mode |= S_IXOTH;
+#endif
+
+  *mode_p = mode;
+  return 0;
+}
+
 /* Convert a host-format mode_t into a bitmask of File-I/O flags.  */
 
 static LONGEST