daemon: added "group" configuration option

The "group" configuration option is similar to "user" as it
sets user set what group MPD shall run as.  With "user"
option, MPD changed GID to the GID of the user, however,
more control could be desired.

Moreover, the patch changes the way of checking whether no
setuid(2)/setgid(2) is required -- previously user names
were compered, now UID and GIDs are compered (ie. the one we
already have (getuid(2)/getgid(2)) with the one we want to
change to).

1 files changed, 1 insertions, 0 deletions

diff --git a/src/conf.h b/src/conf.h
index 66954216..fda3a12b 100644
--- a/src/conf.h
+++ b/src/conf.h
@@ -34,6 +34,7 @@
 #define CONF_PID_FILE                   "pid_file"
 #define CONF_STATE_FILE                 "state_file"
 #define CONF_USER                       "user"
+#define CONF_GROUP                      "group"
 #define CONF_BIND_TO_ADDRESS            "bind_to_address"
 #define CONF_PORT                       "port"
 #define CONF_LOG_LEVEL                  "log_level"