X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Funixsock.c;h=a42456896ef0142765a8f44ef0a30dd5679cfb71;hb=69e109c76551b1f379b38373314d3d2c325e8f60;hp=32fa9bc7ddbb003715089a891e5fd522c7e70ed8;hpb=01761867ced7bc5fe71546baf350be4a3e800600;p=collectd.git

diff --git a/src/unixsock.c b/src/unixsock.c
index 32fa9bc7..a4245689 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;