From 732e8a060438d31835e4a9b1c9f7d6304e487971 Mon Sep 17 00:00:00 2001
From: nishi <nishi@d4a5a174-5a4a-5b4b-b672-37683c10d7d5>
Date: Tue, 25 Jun 2024 00:55:45 +0000
Subject: [PATCH] make server able to receive SIGUSR1 to rescan users

git-svn-id: file:///raid/svn-main/nishi-dataworks/trunk@423 d4a5a174-5a4a-5b4b-b672-37683c10d7d5
---
 Server/server.c | 51 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 38 insertions(+), 13 deletions(-)

diff --git a/Server/server.c b/Server/server.c
index edb3fac..a2501c5 100644
--- a/Server/server.c
+++ b/Server/server.c
@@ -51,7 +51,7 @@ struct auth_entry {
 	char* user;
 	char* pass;
 };
-struct auth_entry** entries;
+struct auth_entry** entries = NULL;
 #ifdef __DOS__
 sig_atomic_t signals = 0;
 #endif
@@ -247,19 +247,21 @@ void exitnow(int sig) {
 #endif
 }
 
-int main(int _argc, char** _argv) {
-	argc = _argc;
-	argv = _argv;
+FILE* flog;
+
+int rescan(void) {
+	if(entries != NULL) {
+		fprintf(flog, "Rescan...\n");
+		int i;
+		for(i = 0; entries[i] != NULL; i++) {
+			free(entries[i]->user);
+			free(entries[i]->pass);
+			free(entries[i]);
+		}
+		free(entries);
+	}
 	entries = malloc(sizeof(*entries));
 	entries[0] = NULL;
-	signal(SIGINT, exitnow);
-	signal(SIGTERM, exitnow);
-	printf("DataWorks Server  version %s  %s %s\n", dataworks_get_version(), dataworks_get_compile_date(), dataworks_get_platform());
-	printf("\n");
-	printf("%s\n", dataworks_get_copyright());
-	printf("\n");
-	int st;
-	if((st = server_init()) != 0) return st;
 	if(auth) {
 		authdb = fopen(authfile, "r");
 		if(authdb == NULL) {
@@ -294,7 +296,7 @@ int main(int _argc, char** _argv) {
 					entries[i]->user = __dw_strdup(str);
 					entries[i]->pass = __dw_strdup(str + shift + 1);
 					entries[i + 1] = NULL;
-					printf("User %s is allowed to access the database now\n", str);
+					fprintf(flog, "User %s is allowed to access the database now\n", str);
 				}
 				free(str);
 				str = malloc(1);
@@ -307,6 +309,29 @@ int main(int _argc, char** _argv) {
 		}
 		free(str);
 	}
+	return 0;
+}
+
+void rescan_sig(int sign) {
+	int st = rescan();
+	if(st != 0) exit(st);
+}
+
+int main(int _argc, char** _argv) {
+	argc = _argc;
+	argv = _argv;
+	flog = stdout;
+	signal(SIGINT, exitnow);
+	signal(SIGTERM, exitnow);
+	signal(SIGUSR1, rescan_sig);
+	printf("DataWorks Server  version %s  %s %s\n", dataworks_get_version(), dataworks_get_compile_date(), dataworks_get_platform());
+	printf("\n");
+	printf("%s\n", dataworks_get_copyright());
+	printf("\n");
+	int st;
+	if((st = server_init()) != 0) return st;
+	st = rescan();
+	if(st != 0) return st;
 	if(db != NULL) {
 		if(db->error) {
 			dataworks_database_close(db);
-- 
2.43.0