X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Funixsock.c;h=99e39eee4f39f0a771408c8a08bf09c750857282;hb=0d9f395599348e735e6f461e1c328293bef0d060;hp=00b930e660f0c126d9db15e0658e8c4c50f14bb3;hpb=79dcff2a8bdd650dfcacdee70cacb4ef1127e305;p=collectd.git

diff --git a/src/unixsock.c b/src/unixsock.c
index 00b930e6..99e39eee 100644
--- a/src/unixsock.c
+++ b/src/unixsock.c
@@ -134,7 +134,13 @@ static int us_open_socket(void) {
     const char *grpname;
     struct group *g;
     struct group sg;
-    char grbuf[4096];
+
+    long int grbuf_size = sysconf(_SC_GETGR_R_SIZE_MAX);
+    if (grbuf_size <= 0)
+      grbuf_size = sysconf(_SC_PAGESIZE);
+    if (grbuf_size <= 0)
+      grbuf_size = 4096;
+    char grbuf[grbuf_size];
 
     grpname = (sock_group != NULL) ? sock_group : COLLECTD_GRP_NAME;
     g = NULL;