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-rw-r--r--lib/libc/stdio/vfprintf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/stdio/vfprintf.c b/lib/libc/stdio/vfprintf.c
index 23914b1..ae5629b 100644
--- a/lib/libc/stdio/vfprintf.c
+++ b/lib/libc/stdio/vfprintf.c
@@ -611,7 +611,7 @@ __vfprintf(FILE *fp, const char *fmt0, va_list ap)
fmt = (char *)fmt0;
argtable = NULL;
nextarg = 1;
- orgap = ap;
+ va_copy(orgap, ap);
uio.uio_iov = iovp = iov;
uio.uio_resid = 0;
uio.uio_iovcnt = 0;
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