old patch from ove

cachesyncd.c

@@ -23,6 +23,7 @@
 #include <unistd.h>
 #include <string.h>
 #include <getopt.h>
+#include <pwd.h>
 #include <sys/stat.h>
 
 #include <sys/time.h>
@@ -37,7 +38,7 @@
 
 #define DEFAULT_CONFIG "cachesyncd.conf"
 #define DEFAULT_LOGFILE "cachesyncd.log"
-
+#define DEFAULT_USER "httpd"
 #define BUF_SIZE 256
 
 static struct option opts[] = {
@@ -84,7 +85,8 @@ int msock_read_callback(int fd, void *privdata)
 
 	} else if (!strncmp(privdata, "DELETE ", 7)) {
 		log_print(LOG_DEBUG, "delete '%s'", privdata +7);
-		//delete_file(buf +7);
+		if (unlink(privdata +7))
+            log_print(LOG_ERROR, "delete '%s' failed", privdata +7);
 
 	} else {
 		log_print(LOG_DEBUG, "recv unknown cmd via multicast: '%s'", privdata);
@@ -99,6 +101,20 @@ int msock_keepalive_timeout(void *privdata)
 	return 0;
 }
 
+void drop_privileges(char *user)
+{
+    struct passwd *user_info;
+    user_info = getpwnam(user);
+    if (user_info == NULL) {
+        log_print(LOG_ERROR,"drop_privileges(): user '%s' not found", user);
+    } else {
+        if (setregid(user_info->pw_gid, user_info->pw_gid))
+            log_print(LOG_ERROR, "setgid() failed");
+        if (setreuid(user_info->pw_uid, user_info->pw_uid))
+            log_print(LOG_ERROR, "setuid() failed");
+    }
+}
+
 int main(int argc, char *argv[])
 {
 	char *config = DEFAULT_CONFIG;
@@ -158,14 +174,16 @@ int main(int argc, char *argv[])
 		return -1;
 	}
 
-	usock = sock_init();
-	if (usock < 0)
-		return -1;
-
 	msock = mcast_init();
 	if (msock < 0)
 		return -1;
 
+    drop_privileges(config_get_string("global", "user", DEFAULT_USER));
+    
+    usock = sock_init();
+    if (usock < 0)
+		return -1;
+
 	event_add_readfd(usock, usock_accept_callback, buf);
 	event_add_readfd(msock, msock_read_callback, buf);
 

cachesyncd.conf

@@ -3,7 +3,7 @@
 user httpd
 
 # unix domain socket location
-socket ./cachesync.sock
+socket /tmp/cachesync.sock
 
 # bind to multicast interface
 mcastdev eth0