X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnames.c;h=603b5363f31c49439d7e25f786fd4b82d35f432b;hb=d6b45d005530496e48325a6174ecdd889a17bfc1;hp=a631ad97e7fcde60c0216e66d7324bf55952db72;hpb=918067f117d5b9983a8f2273fd81983362a2ff88;p=tinc

diff --git a/src/names.c b/src/names.c
index a631ad97..603b5363 100644
--- a/src/names.c
+++ b/src/names.c
@@ -1,7 +1,7 @@
 /*
     names.c -- generate commonly used (file)names
     Copyright (C) 1998-2005 Ivo Timmermans
-                  2000-2013 Guus Sliepen <guus@tinc-vpn.org>
+                  2000-2018 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -21,11 +21,14 @@
 #include "system.h"
 
 #include "logger.h"
+#include "names.h"
 #include "xalloc.h"
 
 char *netname = NULL;
+char *myname = NULL;
 char *confdir = NULL;           /* base configuration directory */
 char *confbase = NULL;          /* base configuration directory for this instance of tinc */
+bool confbase_given;
 char *identname = NULL;         /* program name for syslog */
 char *unixsocketname = NULL;    /* UNIX socket location */
 char *logfilename = NULL;       /* log file location */
@@ -35,63 +38,125 @@ char *program_name = NULL;
 /*
   Set all files and paths according to netname
 */
-void make_names(void) {
+void make_names(bool daemon) {
 #ifdef HAVE_MINGW
 	HKEY key;
 	char installdir[1024] = "";
-	DWORD len = sizeof installdir;
+	DWORD len = sizeof(installdir);
 #endif
+	confbase_given = confbase;
 
-	if(netname && confbase)
+	if(netname && confbase) {
 		logger(DEBUG_ALWAYS, LOG_INFO, "Both netname and configuration directory given, using the latter...");
+	}
 
-	if(netname)
+	if(netname) {
 		xasprintf(&identname, "tinc.%s", netname);
-	else
+	} else {
 		identname = xstrdup("tinc");
+	}
 
 #ifdef HAVE_MINGW
+
 	if(!RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\tinc", 0, KEY_READ, &key)) {
 		if(!RegQueryValueEx(key, NULL, 0, 0, (LPBYTE)installdir, &len)) {
 			confdir = xstrdup(installdir);
-			if(!logfilename)
-				xasprintf(&logfilename, "%s" SLASH "log" SLASH "%s.log", installdir, identname);
+
 			if(!confbase) {
-				if(netname)
+				if(netname) {
 					xasprintf(&confbase, "%s" SLASH "%s", installdir, netname);
-				else
+				} else {
 					xasprintf(&confbase, "%s", installdir);
+				}
+			}
+
+			if(!logfilename) {
+				xasprintf(&logfilename, "%s" SLASH "tinc.log", confbase);
 			}
-			if(!pidfilename)
-				xasprintf(&pidfilename, "%s" SLASH "pid", confbase);
 		}
+
 		RegCloseKey(key);
 	}
+
 #endif
-	if(!confdir)
+
+	if(!confdir) {
 		confdir = xstrdup(CONFDIR SLASH "tinc");
+	}
+
+	if(!confbase) {
+		if(netname) {
+			xasprintf(&confbase, CONFDIR SLASH "tinc" SLASH "%s", netname);
+		} else {
+			xasprintf(&confbase, CONFDIR SLASH "tinc");
+		}
+	}
+
+#ifdef HAVE_MINGW
+	(void)daemon;
+
+	if(!logfilename) {
+		xasprintf(&logfilename, "%s" SLASH "log", confbase);
+	}
+
+	if(!pidfilename) {
+		xasprintf(&pidfilename, "%s" SLASH "pid", confbase);
+	}
+
+#else
+	bool fallback = false;
 
-	if(!logfilename)
-		xasprintf(&logfilename, LOCALSTATEDIR SLASH "log" SLASH "%s.log", identname);
+	if(daemon) {
+		if(access(LOCALSTATEDIR, R_OK | W_OK | X_OK)) {
+			fallback = true;
+		}
+	} else {
+		char fname[PATH_MAX];
+		snprintf(fname, sizeof(fname), LOCALSTATEDIR SLASH "run" SLASH "%s.pid", identname);
+
+		if(access(fname, R_OK)) {
+			snprintf(fname, sizeof(fname), "%s" SLASH "pid", confbase);
+
+			if(!access(fname, R_OK)) {
+				fallback = true;
+			}
+		}
+	}
 
-	if(!pidfilename)
-		xasprintf(&pidfilename, LOCALSTATEDIR SLASH "run" SLASH "%s.pid", identname);
+	if(!fallback) {
+		if(!logfilename) {
+			xasprintf(&logfilename, LOCALSTATEDIR SLASH "log" SLASH "%s.log", identname);
+		}
+
+		if(!pidfilename) {
+			xasprintf(&pidfilename, LOCALSTATEDIR SLASH "run" SLASH "%s.pid", identname);
+		}
+	} else {
+		if(!logfilename) {
+			xasprintf(&logfilename, "%s" SLASH "log", confbase);
+		}
+
+		if(!pidfilename) {
+			if(daemon) {
+				logger(DEBUG_ALWAYS, LOG_WARNING, "Could not access " LOCALSTATEDIR SLASH " (%s), storing pid and socket files in %s" SLASH, strerror(errno), confbase);
+			}
+
+			xasprintf(&pidfilename, "%s" SLASH "pid", confbase);
+		}
+	}
+
+#endif
 
 	if(!unixsocketname) {
 		int len = strlen(pidfilename);
 		unixsocketname = xmalloc(len + 8);
-		strcpy(unixsocketname, pidfilename);
-		if(len > 4 && !strcmp(pidfilename + len - 4, ".pid"))
-			strcpy(unixsocketname + len - 4, ".socket");
-		else
-			strcpy(unixsocketname + len, ".socket");
-	}
+		memcpy(unixsocketname, pidfilename, len);
 
-	if(!confbase) {
-		if(netname)
-			xasprintf(&confbase, CONFDIR SLASH "tinc" SLASH "%s", netname);
-		else
-			xasprintf(&confbase, CONFDIR SLASH "tinc");
+		if(len > 4 && !strcmp(pidfilename + len - 4, ".pid")) {
+			strncpy(unixsocketname + len - 4, ".socket", 8);
+		} else {
+			strncpy(unixsocketname + len, ".socket", 8);
+		}
 	}
 }
 
@@ -103,4 +168,14 @@ void free_names(void) {
 	free(logfilename);
 	free(confbase);
 	free(confdir);
+	free(myname);
+
+	identname = NULL;
+	netname = NULL;
+	unixsocketname = NULL;
+	pidfilename = NULL;
+	logfilename = NULL;
+	confbase = NULL;
+	confdir = NULL;
+	myname = NULL;
 }