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-rw-r--r--src/app/config/config.c17
-rw-r--r--src/app/config/config.h3
2 files changed, 12 insertions, 8 deletions
diff --git a/src/app/config/config.c b/src/app/config/config.c
index 5115835a0c..bfa258c904 100644
--- a/src/app/config/config.c
+++ b/src/app/config/config.c
@@ -6856,7 +6856,7 @@ validate_data_directories(or_options_t *options)
/** This string can change; it tries to give the reader an idea
* that editing this file by hand is not a good plan. */
#define GENERATED_FILE_COMMENT "# The old torrc file was renamed " \
- "to torrc.orig.1 or similar, and Tor will ignore it"
+ "to torrc.orig.1, and Tor will ignore it"
/** Save a configuration file for the configuration in <b>options</b>
* into the file <b>fname</b>. If the file already exists, and
@@ -6900,17 +6900,18 @@ write_configuration_file(const char *fname, const or_options_t *options)
GENERATED_FILE_PREFIX, GENERATED_FILE_COMMENT, new_conf);
if (rename_old) {
- int i = 1;
char *fn_tmp = NULL;
- while (1) {
- tor_asprintf(&fn_tmp, "%s.orig.%d", fname, i);
- if (file_status(fn_tmp) == FN_NOENT)
- break;
+ tor_asprintf(&fn_tmp, CONFIG_BACKUP_PATTERN, fname);
+ file_status_t fn_tmp_status = file_status(fn_tmp);
+ if (fn_tmp_status == FN_DIR || fn_tmp_status == FN_ERROR) {
+ log_warn(LD_CONFIG,
+ "Config backup file \"%s\" is not a file? Failing.", fn_tmp);
tor_free(fn_tmp);
- ++i;
+ goto err;
}
+
log_notice(LD_CONFIG, "Renaming old configuration file to \"%s\"", fn_tmp);
- if (tor_rename(fname, fn_tmp) < 0) {//XXXX sandbox doesn't allow
+ if (replace_file(fname, fn_tmp) < 0) {
log_warn(LD_FS,
"Couldn't rename configuration file \"%s\" to \"%s\": %s",
fname, fn_tmp, strerror(errno));
diff --git a/src/app/config/config.h b/src/app/config/config.h
index e534bcbcbe..de198e203d 100644
--- a/src/app/config/config.h
+++ b/src/app/config/config.h
@@ -44,6 +44,9 @@ int get_protocol_warning_severity_level(void);
#define LOG_PROTOCOL_WARN (get_protocol_warning_severity_level())
+/** Pattern for backing up configuration files */
+#define CONFIG_BACKUP_PATTERN "%s.orig.1"
+
/** An error from options_trial_assign() or options_init_from_string(). */
typedef enum setopt_err_t {
SETOPT_OK = 0,