X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Funixsock.c;h=a42456896ef0142765a8f44ef0a30dd5679cfb71;hb=6d63f6e9834c838e0a6469d9eaf17feffa3b2959;hp=f61360efe148103d04195aa69f4f6b4ee72360b7;hpb=2e632b0929fb957fd686231658bc2999fdfb4b20;p=collectd.git

diff --git a/src/unixsock.c b/src/unixsock.c
index f61360ef..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[2048];
+
+    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;
@@ -143,7 +149,7 @@ static int us_open_socket(void) {
     if (status != 0) {
       char errbuf[1024];
       WARNING("unixsock plugin: getgrnam_r (%s) failed: %s", grpname,
-              sstrerror(errno, errbuf, sizeof(errbuf)));
+              sstrerror(status, errbuf, sizeof(errbuf)));
       break;
     }
     if (g == NULL) {