From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: Florian Westphal <fw@strlen.de>
Subject: [PATCH nft 1/3] utils: provide snprintf helper macro
Date: Thu, 27 Oct 2016 00:36:06 +0200 [thread overview]
Message-ID: <1477521368-12696-2-git-send-email-fw@strlen.de> (raw)
In-Reply-To: <1477521368-12696-1-git-send-email-fw@strlen.de>
lifted from libnftnl, except that we will abort on snprintf errors.
Signed-off-by: Florian Westphal <fw@strlen.de>
---
include/utils.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/utils.h b/include/utils.h
index d88676476efb..bb58ba424165 100644
--- a/include/utils.h
+++ b/include/utils.h
@@ -83,6 +83,16 @@
(void) (&_max1 == &_max2); \
_max1 > _max2 ? _max1 : _max2; })
+#define SNPRINTF_BUFFER_SIZE(ret, size, len, offset) \
+ if (ret < 0) \
+ abort(); \
+ offset += ret; \
+ assert(ret < len); \
+ if (ret > len) \
+ ret = len; \
+ size += ret; \
+ len -= ret;
+
#define MSEC_PER_SEC 1000L
/**
--
2.7.3
next prev parent reply other threads:[~2016-10-26 22:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-26 22:36 [PATCH nft 0/3] support ct/meta key lookups at runtime Florian Westphal
2016-10-26 22:36 ` Florian Westphal [this message]
2016-10-26 22:36 ` [PATCH nft 2/3] ct: allow resolving ct keys at run time Florian Westphal
2016-10-26 22:36 ` [PATCH nft 3/3] meta: allow resolving meta " Florian Westphal
2016-10-27 16:48 ` [PATCH nft 0/3] support ct/meta key lookups at runtime Pablo Neira Ayuso
2016-10-27 16:51 ` Pablo Neira Ayuso
2016-10-27 16:58 ` Florian Westphal
2016-10-27 17:16 ` Pablo Neira Ayuso
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