Adding upstream version 3.5.24.upstream/3.5.24

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 152 insertions, 0 deletions

diff --git a/src/master/master_conf.c b/src/master/master_conf.c
new file mode 100644
index 0000000..37cad2a
--- /dev/null
+++ b/src/master/master_conf.c
@@ -0,0 +1,152 @@
+/*++
+/* NAME
+/*	master_conf 3
+/* SUMMARY
+/*	Postfix master - master.cf file processing
+/* SYNOPSIS
+/*	#include "master.h"
+/*
+/*	void	master_config(serv)
+/*	MASTER_SERV *serv;
+/*
+/*	void	master_refresh(serv)
+/*	MASTER_SERV *serv;
+/* DESCRIPTION
+/*	Use master_config() to read the master.cf configuration file
+/*	during program initialization.
+/*
+/*	Use master_refresh() to re-read the master.cf configuration file
+/*	when the process is already running.
+/* DIAGNOSTICS
+/* BUGS
+/* SEE ALSO
+/*	master_ent(3), configuration file programmatic interface.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System libraries. */
+
+#include <sys_defs.h>
+#include <unistd.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <argv.h>
+
+/* Application-specific. */
+
+#include "master.h"
+
+/* master_refresh - re-read configuration table */
+
+void    master_refresh(void)
+{
+    MASTER_SERV *serv;
+    MASTER_SERV **servp;
+
+    /*
+     * Mark all existing services.
+     */
+    for (serv = master_head; serv != 0; serv = serv->next)
+	serv->flags |= MASTER_FLAG_MARK;
+
+    /*
+     * Read the master.cf configuration file. The master_conf() routine
+     * unmarks services upon update. New services are born with the mark bit
+     * off. After this, anything with the mark bit on should be removed.
+     */
+    master_config();
+
+    /*
+     * Delete all services that are still marked - they disappeared from the
+     * configuration file and are therefore no longer needed.
+     */
+    for (servp = &master_head; (serv = *servp) != 0; /* void */ ) {
+	if ((serv->flags & MASTER_FLAG_MARK) != 0) {
+	    *servp = serv->next;
+	    master_stop_service(serv);
+	    free_master_ent(serv);
+	} else {
+	    servp = &serv->next;
+	}
+    }
+}
+
+/* master_config - read config file */
+
+void    master_config(void)
+{
+    MASTER_SERV *entry;
+    MASTER_SERV *serv;
+
+#define STR_DIFF	strcmp
+#define STR_SAME	!strcmp
+#define SWAP(type,a,b)	{ type temp = a; a = b; b = temp; }
+
+    /*
+     * A service is identified by its endpoint name AND by its transport
+     * type, not just by its name alone. The name is unique within its
+     * transport type. XXX Service privacy is encoded in the service name.
+     */
+    set_master_ent();
+    while ((entry = get_master_ent()) != 0) {
+	if (msg_verbose)
+	    print_master_ent(entry);
+	for (serv = master_head; serv != 0; serv = serv->next)
+	    if (STR_SAME(serv->name, entry->name) && serv->type == entry->type)
+		break;
+
+	/*
+	 * Add a new service entry. We do not really care in what order the
+	 * service entries are kept in memory.
+	 */
+	if (serv == 0) {
+	    entry->next = master_head;
+	    master_head = entry;
+	    master_start_service(entry);
+	}
+
+	/*
+	 * Update an existing service entry. Make the current generation of
+	 * child processes commit suicide whenever it is convenient. The next
+	 * generation of child processes will run with the new configuration
+	 * settings.
+	 */
+	else {
+	    if ((serv->flags & MASTER_FLAG_MARK) == 0)
+		msg_warn("duplicate master.cf entry for service \"%s\" (%s) "
+		     "-- using the last entry", serv->ext_name, serv->name);
+	    else
+		serv->flags &= ~MASTER_FLAG_MARK;
+	    if (entry->flags & MASTER_FLAG_CONDWAKE)
+		serv->flags |= MASTER_FLAG_CONDWAKE;
+	    else
+		serv->flags &= ~MASTER_FLAG_CONDWAKE;
+	    serv->wakeup_time = entry->wakeup_time;
+	    serv->max_proc = entry->max_proc;
+	    serv->throttle_delay = entry->throttle_delay;
+	    SWAP(char *, serv->ext_name, entry->ext_name);
+	    SWAP(char *, serv->path, entry->path);
+	    SWAP(ARGV *, serv->args, entry->args);
+	    SWAP(char *, serv->stress_param_val, entry->stress_param_val);
+	    master_restart_service(serv, DO_CONF_RELOAD);
+	    free_master_ent(entry);
+	}
+    }
+    end_master_ent();
+}