X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fstdio%2Fsetvbuf.c;h=523dddc8ba28f53a7b3fcc4e3e5323de092acc22;hb=00d3d577cac8dc05e683b16bfe3dbe4a692cb172;hp=06ea296c6a64202ed4f95e23c6af884f5305e1e7;hpb=f368d9fd26ae002fe2fce20add4cb2b806f48972;p=musl

diff --git a/src/stdio/setvbuf.c b/src/stdio/setvbuf.c
index 06ea296c..523dddc8 100644
--- a/src/stdio/setvbuf.c
+++ b/src/stdio/setvbuf.c
@@ -12,13 +12,15 @@ int setvbuf(FILE *restrict f, char *restrict buf, int type, size_t size)
 
 	if (type == _IONBF) {
 		f->buf_size = 0;
-	} else {
+	} else if (type == _IOLBF || type == _IOFBF) {
 		if (buf && size >= UNGET) {
 			f->buf = (void *)(buf + UNGET);
 			f->buf_size = size - UNGET;
 		}
 		if (type == _IOLBF && f->buf_size)
 			f->lbf = '\n';
+	} else {
+		return -1;
 	}
 
 	f->flags |= F_SVB;