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From 4673bf0d6a0eba5d363266a40cfb087e08a66e7f Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Thu, 30 Jan 2020 21:57:34 -0800
Subject: [PATCH] Use alloca when VLAs aren't available
---
src/evdev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/evdev.c b/src/evdev.c
index 81dd951cb..74a765469 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -164,9 +164,13 @@ decode_bitset(struct tcb *const tcp, const kernel_ulong_t arg,
return RVAL_IOCTL_DECODED;
}
+#ifndef __STDC_NO_VLA__
char decoded_arg[size];
+#else
+ char *decoded_arg = alloca(size);
+#endif
- if (umove_or_printaddr(tcp, arg, &decoded_arg))
+ if (umoven_or_printaddr(tcp, arg, size, decoded_arg))
return RVAL_IOCTL_DECODED;
if (xlat_verbose(xlat_verbosity) != XLAT_STYLE_RAW) {
--
2.34.1
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