strdupa appears to only exist in the standard glibc but at least not in bionic.
Replace the two strdupa calls we have by a standard strdup.

Signed-off-by: Stéphane Graber <stgra...@ubuntu.com>
---
 src/lxc/confile.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 940f0a9..6b75b6a 100644
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -580,7 +580,11 @@ static int config_network_ipv4(const char *key, const char 
*value,
        lxc_list_init(list);
        list->elem = inetdev;
 
-       addr = strdupa(value);
+       addr = strdup(value);
+       if (!addr) {
+               ERROR("no address specified");
+               return -1;
+       }
 
        cursor = strstr(addr, " ");
        if (cursor) {
@@ -594,18 +598,15 @@ static int config_network_ipv4(const char *key, const 
char *value,
                prefix = slash + 1;
        }
 
-       if (!addr) {
-               ERROR("no address specified");
-               return -1;
-       }
-
        if (!inet_pton(AF_INET, addr, &inetdev->addr)) {
                SYSERROR("invalid ipv4 address: %s", value);
+               free(addr);
                return -1;
        }
 
        if (bcast && !inet_pton(AF_INET, bcast, &inetdev->bcast)) {
                SYSERROR("invalid ipv4 broadcast address: %s", value);
+               free(addr);
                return -1;
        }
 
@@ -624,6 +625,7 @@ static int config_network_ipv4(const char *key, const char 
*value,
 
        lxc_list_add(&netdev->ipv4, list);
 
+       free(addr);
        return 0;
 }
 
@@ -693,7 +695,12 @@ static int config_network_ipv6(const char *key, const char 
*value,
        lxc_list_init(list);
        list->elem = inet6dev;
 
-       valdup = strdupa(value);
+       valdup = strdup(value);
+       if (!valdup) {
+               ERROR("no address specified");
+               return -1;
+       }
+
        inet6dev->prefix = 64;
        slash = strstr(valdup, "/");
        if (slash) {
@@ -704,11 +711,13 @@ static int config_network_ipv6(const char *key, const 
char *value,
 
        if (!inet_pton(AF_INET6, value, &inet6dev->addr)) {
                SYSERROR("invalid ipv6 address: %s", value);
+               free(valdup);
                return -1;
        }
 
        lxc_list_add(&netdev->ipv6, list);
 
+       free(valdup);
        return 0;
 }
 
-- 
1.8.0


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