[lxc-devel] [lxc/master] Fix compilation on toolchain without prlimit

[ffontaine on Github]

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From 2e113ffdc38a4f1968e64c8e487a123dd912f4c0 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Date: Thu, 2 Nov 2017 16:00:33 +0100
Subject: [PATCH] Fix compilation on toolchain without prlimit

Some toolchains which are not bionic like uclibc does not support
prlimit or prlimit64. In this case, return an error.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 src/lxc/conf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lxc/conf.c b/src/lxc/conf.c
index 44d978430..f7f591ac5 100644
--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -2399,10 +2399,15 @@ int setup_resource_limits(struct lxc_list *limits, pid_t pid) {
 			return -1;
 		}
 
+#if IS_BIONIC || HAVE_PRLIMIT
 		if (prlimit(pid, resid, &lim->limit, NULL) != 0) {
 			ERROR("failed to set limit %s: %s", lim->resource, strerror(errno));
 			return -1;
 		}
+#else
+		ERROR("Cannot set limit %s as prlimit is missing", lim->resource);
+		return -1;
+#endif
 	}
 	return 0;
 }