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-rw-r--r--lib/safe-read.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/safe-read.h b/lib/safe-read.h
index 8e4b165cb..eef929822 100644
--- a/lib/safe-read.h
+++ b/lib/safe-read.h
@@ -6,5 +6,7 @@
# endif
#endif
-ssize_t
+#define SAFE_READ_ERROR ((size_t) -1)
+
+size_t
safe_read PARAMS ((int desc, void *ptr, size_t len));