dovecot-2.0: doveconf -n, -a: Show version number, config file p...

dovecot at dovecot.org dovecot at dovecot.org
Wed May 6 21:33:19 EEST 2009


details:   http://hg.dovecot.org/dovecot-2.0/rev/30d771700232
changeset: 9237:30d771700232
user:      Timo Sirainen <tss at iki.fi>
date:      Wed May 06 14:33:06 2009 -0400
description:
doveconf -n, -a: Show version number, config file path and system info.

diffstat:

4 files changed, 184 insertions(+), 9 deletions(-)
src/config/Makefile.am   |    6 +-
src/config/doveconf.c    |   54 +++++++++++++++++--
src/config/sysinfo-get.c |  127 ++++++++++++++++++++++++++++++++++++++++++++++
src/config/sysinfo-get.h |    6 ++

diffs (260 lines):

diff -r 955e68007ada -r 30d771700232 src/config/Makefile.am
--- a/src/config/Makefile.am	Wed May 06 14:20:14 2009 -0400
+++ b/src/config/Makefile.am	Wed May 06 14:33:06 2009 -0400
@@ -29,7 +29,8 @@ common = \
 	all-settings.c \
 	config-connection.c \
 	config-parser.c \
-	config-request.c
+	config-request.c \
+	sysinfo-get.c
 
 config_SOURCES = \
 	main.c \
@@ -42,7 +43,8 @@ noinst_HEADERS = \
 noinst_HEADERS = \
 	all-settings.h \
 	config-connection.h \
-	config-parser.h
+	config-parser.h \
+	sysinfo-get.h
 
 all-settings.c: $(SETTING_FILES) $(top_srcdir)/src/config/settings-get.pl
 	$(top_srcdir)/src/config/settings-get.pl $(SETTING_FILES) > all-settings.c || rm -f all-settings.c
diff -r 955e68007ada -r 30d771700232 src/config/doveconf.c
--- a/src/config/doveconf.c	Wed May 06 14:20:14 2009 -0400
+++ b/src/config/doveconf.c	Wed May 06 14:33:06 2009 -0400
@@ -3,12 +3,16 @@
 #include "lib.h"
 #include "array.h"
 #include "env-util.h"
+#include "ostream.h"
+#include "settings-parser.h"
 #include "master-service.h"
-#include "ostream.h"
+#include "all-settings.h"
+#include "sysinfo-get.h"
 #include "config-connection.h"
 #include "config-parser.h"
 #include "config-request.h"
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 
@@ -173,16 +177,38 @@ static void config_request_putenv(const 
 	} T_END;
 }
 
+static const char *get_mail_location(void)
+{
+	struct config_setting_parser_list *l;
+	const struct setting_define *def;
+	const char *const *value;
+	const void *set;
+
+	for (l = config_setting_parsers; l->module_name != NULL; l++) {
+		if (strcmp(l->module_name, "mail") != 0)
+			continue;
+
+		set = settings_parser_get(l->parser);
+		for (def = l->root->defines; def->key != NULL; def++) {
+			if (strcmp(def->key, "mail_location") == 0) {
+				value = CONST_PTR_OFFSET(set, def->offset);
+				return *value;
+			}
+		}
+	}
+	return "";
+}
+
 int main(int argc, char *argv[])
 {
 	enum config_dump_flags flags = CONFIG_DUMP_FLAG_DEFAULTS;
-	const char *getopt_str, *service_name = "";
+	const char *getopt_str, *config_path, *service_name = "";
 	char **exec_args = NULL;
 	int c;
 
 	service = master_service_init("config", MASTER_SERVICE_FLAG_STANDALONE,
 				      argc, argv);
-
+	i_set_failure_prefix("doveconf: ");
 	getopt_str = t_strconcat("anp:e", master_service_getopt_string(), NULL);
 	while ((c = getopt(argc, argv, getopt_str)) > 0) {
 		if (c == 'e')
@@ -201,15 +227,29 @@ int main(int argc, char *argv[])
 				exit(FATAL_DEFAULT);
 		}
 	}
+	config_path = master_service_get_config_path(service);
+
 	if (argv[optind] != NULL)
 		exec_args = &argv[optind];
+	else {
+		/* print the config file path before parsing it, so in case
+		   of errors it's still shown */
+		printf("# "VERSION": %s\n", config_path);
+		fflush(stdout);
+	}
 	master_service_init_finish(service);
 
-	config_parse_file(master_service_get_config_path(service));
-
-	if (exec_args == NULL)
+	config_parse_file(config_path);
+
+	if (exec_args == NULL) {
+		const char *info;
+
+		info = sysinfo_get(get_mail_location());
+		if (*info != '\0')
+			printf("# %s\n", info);
+		fflush(stdout);
 		config_dump_human(service_name, flags);
-	else {
+	} else {
 		env_put("DOVECONF_ENV=1");
 		config_request_handle(service_name, 0,
 				      config_request_putenv, NULL);
diff -r 955e68007ada -r 30d771700232 src/config/sysinfo-get.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/config/sysinfo-get.c	Wed May 06 14:33:06 2009 -0400
@@ -0,0 +1,127 @@
+/* Copyright (c) 2008-2009 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "mountpoint.h"
+#include "strescape.h"
+#include "sysinfo-get.h"
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#ifdef HAVE_SYS_UTSNAME_H
+#  include <sys/utsname.h>
+#endif
+
+static bool readfile(const char *path, const char **data_r)
+{
+	char buf[1024];
+	int fd, ret;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1)
+		return FALSE;
+	ret = read(fd, buf, sizeof(buf));
+	(void)close(fd);
+	if (ret <= 0)
+		return FALSE;
+
+	*data_r = t_strndup(buf, ret);
+	return TRUE;
+}
+
+static bool lsb_distro_get(const char *path, const char **name_r)
+{
+	const char *data, *const *p, *str, *end;
+
+	if (!readfile(path, &data))
+		return FALSE;
+
+	for (p = t_strsplit(data, "\n"); *p != '\0'; p++) {
+		if (strncmp(*p, "DISTRIB_DESCRIPTION=", 20) == 0)
+			break;
+	}
+	if (*p == '\0')
+		return FALSE;
+
+	str = t_strcut(*p + 20, '\n');
+	if (*str != '"')
+		*name_r = str;
+	else {
+		end = strrchr(++str, '"');
+		*name_r = str_unescape(p_strdup_until(unsafe_data_stack_pool,
+						      str, end));
+	}
+	return TRUE;
+}
+
+static const char *distro_get(void)
+{
+	static const char *files[] = {
+		"", "/etc/redhat-release",
+		"", "/etc/SuSE-release",
+		"", "/etc/mandriva-release",
+		"", "/etc/fedora-release",
+		"", "/etc/sourcemage-release",
+		"", "/etc/slackware-version",
+		"", "/etc/gentoo-release",
+		"Debian ", "/etc/debian_version",
+		NULL
+	};
+	const char *name;
+	unsigned int i;
+
+	if (lsb_distro_get("/etc/lsb-release", &name))
+		return name;
+	for (i = 0; files[i] != NULL; i += 2) {
+		if (readfile(files[i+1], &name)) {
+			return t_strconcat(files[i], t_strcut(name, '\n'),
+					   NULL);
+		}
+	}
+	return "";
+}
+
+static const char *filesystem_get(const char *mail_location)
+{
+	struct mountpoint mp;
+	const char *path;
+
+	path = strchr(mail_location, ':');
+	if (path == NULL)
+		path = mail_location;
+	else
+		path = t_strcut(path + 1, ':');
+	if (*path == '~') {
+		/* we don't know where users' home dirs are */
+		return "";
+	}
+	path = t_strcut(path, '%');
+	if (strlen(path) <= 1)
+		return "";
+
+	/* all in all it seems we can support only /<path>/%u style location */
+	if (mountpoint_get(path, pool_datastack_create(), &mp) < 0)
+		return "";
+	return mp.type == NULL ? "" : mp.type;
+}
+
+const char *sysinfo_get(const char *mail_location)
+{
+	const char *distro = "", *fs, *uname_info = "";
+#ifdef HAVE_SYS_UTSNAME_H
+	struct utsname u;
+
+	if (uname(&u) < 0)
+		i_error("uname() failed: %m");
+	else {
+		uname_info = t_strdup_printf("%s %s %s",
+					     u.sysname, u.release, u.machine);
+	}
+	if (strcmp(u.sysname, "Linux") == 0)
+		distro = distro_get();
+#endif
+	fs = filesystem_get(mail_location);
+	if (*uname_info == '\0' && *distro == '\0' && *fs == '\0')
+		return "";
+	return t_strdup_printf("OS: %s %s %s %s %s", u.sysname, u.release, u.machine, distro, fs);
+}
diff -r 955e68007ada -r 30d771700232 src/config/sysinfo-get.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/config/sysinfo-get.h	Wed May 06 14:33:06 2009 -0400
@@ -0,0 +1,6 @@
+#ifndef SYSINFO_GET_H
+#define SYSINFO_GET_H
+
+const char *sysinfo_get(const char *mail_location);
+
+#endif


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