From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 12 Feb 2011 00:22:29 -0500 Subject: initial check-in, version 0.5.0 --- src/stdio/setvbuf.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 src/stdio/setvbuf.c (limited to 'src/stdio/setvbuf.c') diff --git a/src/stdio/setvbuf.c b/src/stdio/setvbuf.c new file mode 100644 index 00000000..2985d3f1 --- /dev/null +++ b/src/stdio/setvbuf.c @@ -0,0 +1,22 @@ +#include "stdio_impl.h" + +/* This function makes no attempt to protect the user from his/her own + * stupidity. If called any time but when then ISO C standard specifically + * allows it, all hell can and will break loose, especially with threads! + * + * This implementation ignores all arguments except the buffering type, + * and uses the existing buffer allocated alongside the FILE object. + * In the case of stderr where the preexisting buffer is length 1, it + * is not possible to set line buffering or full buffering. */ + +int setvbuf(FILE *f, char *buf, int type, size_t size) +{ + f->lbf = EOF; + + if (type == _IONBF) + f->buf_size = 1; + else if (type == _IOLBF) + f->lbf = '\n'; + + return 0; +} -- cgit v1.2.1