X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fsafe-read.h;h=ba191713b681712ab85b59953e256a78a8b2d978;hb=1a2869593e115e4a6c74aaa0b23ca612357403ce;hp=3734671de1e8974552cb21887b9b9010cfe6091d;hpb=84acb508aa24433c9e4fa17c1038ed6cac613fba;p=gnulib.git
diff --git a/lib/safe-read.h b/lib/safe-read.h
index 3734671de..ba191713b 100644
--- a/lib/safe-read.h
+++ b/lib/safe-read.h
@@ -1,2 +1,34 @@
-ssize_t
-safe_read (int desc, char *ptr, size_t len);
+/* An interface to read() that retries after interrupts.
+ Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
+
+#include
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define SAFE_READ_ERROR ((size_t) -1)
+
+/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
+ Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
+ upon error. */
+extern size_t safe_read (int fd, void *buf, size_t count);
+
+
+#ifdef __cplusplus
+}
+#endif