X-Git-Url: http://git.tuebingen.mpg.de/?p=adu.git;a=blobdiff_plain;f=adu.c;h=37a086772fec78a8c099bbfb655e2cb5a734e0b2;hp=9fb70bed1446f41d4a6049db036e28c5bf6d971e;hb=560d397a66ba141f18e13557feae78ca94a25f98;hpb=d0bef44ffe5b6f985f4ba6a718e08afb50f096c6

diff --git a/adu.c b/adu.c
index 9fb70be..37a0867 100644
--- a/adu.c
+++ b/adu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2008 Andre Noll <maan@tuebingen.mpg.de>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -12,7 +12,7 @@
  * - Modes of operation: \ref select.c, \ref create.c, \ref interactive.c
  * - User handling: \ref user.c
  * - Error handling: \ref error.h
- * - Library-type functions: \ref fd.c, \ref format.c, \ref string.c, \ref portable_io.h
+ * - Library-type functions: \ref fd.c, \ref format.c, \ref string.c, \ref portable_io.h, \ref bloom.c
  */
 
 #include "adu.h"
@@ -125,6 +125,25 @@ __printf_2_3 void __log(int ll, const char* fmt,...)
 	va_end(argp);
 }
 
+/**
+ * adu's version of strerror(3).
+ *
+ * \param num The error number.
+ *
+ * \return The error text of \a num.
+ */
+const char *adu_strerror(int num)
+{
+	assert(num > 0);
+	if (num == E_OSL) {
+		assert(osl_errno > 0);
+		return osl_strerror((osl_errno));
+	}
+	if (IS_SYSTEM_ERROR(num))
+		return strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1));
+	return adu_errlist[num];
+}
+
 static void close_dir_table(void)
 {
 	int ret;
@@ -165,14 +184,24 @@ void check_signals(void)
 	exit(EXIT_FAILURE);
 }
 
+static int catch_signal(int sig)
+{
+	struct sigaction act;
+
+	act.sa_handler = signal_handler;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = 0;
+	return sigaction(sig, &act, NULL);
+}
+
 static int init_signals(void)
 {
-	if (signal(SIGINT, &signal_handler) == SIG_ERR)
-		return -E_SIGNAL_SIG_ERR;
-	if (signal(SIGTERM, &signal_handler) == SIG_ERR)
-		return -E_SIGNAL_SIG_ERR;
-	if (signal(SIGPIPE, &signal_handler) == SIG_ERR)
-		return -E_SIGNAL_SIG_ERR;
+	if (catch_signal(SIGINT) < 0)
+		return -E_SIGACTION;
+	if (catch_signal(SIGTERM) < 0)
+		return -E_SIGACTION;
+	if (catch_signal(SIGPIPE) < 0)
+		return -E_SIGACTION;
 	return 1;
 }
 
@@ -198,8 +227,10 @@ int open_dir_table(int create)
 			goto out;
 		NOTICE_LOG("creating dir table\n");
 		ret = osl(osl_create_table(&dir_table_desc));
-		if (ret < 0)
+		if (ret < 0) {
+			ERROR_LOG("could not create %s\n", dir_table_desc.dir);
 			goto out;
+		}
 	}
 	INFO_LOG("opening dir table\n");
 	return osl(osl_open_table(&dir_table_desc, &dir_table));
@@ -259,6 +290,27 @@ static void print_complete_help_and_die(void)
 	exit(EXIT_FAILURE);
 }
 
+static void get_database_dir_or_die(void)
+{
+	char *tmp;
+
+	if (conf.database_dir_given)
+		tmp = adu_strdup(conf.database_dir_arg);
+	else
+		tmp = make_message("%s%s",
+			conf.database_root_arg, conf.base_dir_arg);
+	/*
+	 * As we change the cwd during database creation, database_dir
+	 * must be an absolute path.
+	 */
+	database_dir = absolute_path(tmp);
+	free(tmp);
+	if (database_dir)
+		return;
+	EMERG_LOG("failed to get absolute path of database dir\n");
+	exit(EXIT_FAILURE);
+}
+
 /**
  * The main function of adu.
  *
@@ -300,12 +352,7 @@ int main(int argc, char **argv)
 	ret = init_signals();
 	if (ret < 0)
 		goto out;
-	ret = -E_SYNTAX;
-	if (conf.database_dir_given)
-		database_dir = adu_strdup(conf.database_dir_arg);
-	else
-		database_dir = make_message("%s%s",
-			conf.database_root_arg, conf.base_dir_arg);
+	get_database_dir_or_die();
 	if (conf.select_given)
 		ret = com_select();
 	else if (conf.create_given)