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* stdio-common/vfprintf.c (_IO_helper_overflow): In case _IO_sputn
doesn't manage to write anything, fail.
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@@ -1,4 +1,4 @@
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/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007
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/* Copyright (C) 1991-2002, 2003, 2004, 2005, 2006, 2007, 2008
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@@ -2080,6 +2080,8 @@ _IO_helper_overflow (_IO_FILE *s, int c)
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{
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_IO_size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base,
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used);
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if (written == 0)
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return WEOF;
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s->_wide_data->_IO_write_ptr -= written;
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}
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#else
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@@ -2087,6 +2089,8 @@ _IO_helper_overflow (_IO_FILE *s, int c)
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if (used)
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{
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_IO_size_t written = _IO_sputn (target, s->_IO_write_base, used);
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if (written == 0)
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return EOF;
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s->_IO_write_ptr -= written;
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}
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#endif
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