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-rw-r--r--src/stdio/vdprintf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stdio/vdprintf.c b/src/stdio/vdprintf.c
index 35ed6e0b..68562e05 100644
--- a/src/stdio/vdprintf.c
+++ b/src/stdio/vdprintf.c
@@ -8,7 +8,7 @@ static size_t wrap_write(FILE *f, const unsigned char *buf, size_t len)
int vdprintf(int fd, const char *fmt, va_list ap)
{
int r;
- char buf[BUFSIZ];
+ unsigned char buf[BUFSIZ];
FILE f = {
.fd = fd, .lbf = EOF, .write = wrap_write,
.buf = buf+UNGET, .buf_size = sizeof buf - UNGET