X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fconfig.c;fp=lttng%2Fconfig.c;h=0000000000000000000000000000000000000000;hp=224bd1a1b56aff122e4ef2d651646f5ba9d89f4d;hb=beb8c75afd91bc32f2e7a9c124c9a21ecffd1486;hpb=857aa1720c40cf06d7b72f430128a4ca73ed0c69 diff --git a/lttng/config.c b/lttng/config.c deleted file mode 100644 index 224bd1a1b..000000000 --- a/lttng/config.c +++ /dev/null @@ -1,301 +0,0 @@ -/* - * Copyright (c) 2011 David Goulet - * - * 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 - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _GNU_SOURCE -#include -#include -#include -#include -#include -#include -#include - -#include "config.h" -#include "lttngerr.h" - -/* - * get_config_file_path - * - * Return the path with '/CONFIG_FILENAME' added to it. - */ -static char *get_config_file_path(char *path) -{ - int ret; - char *file_path; - - ret = asprintf(&file_path, "%s/%s", path, CONFIG_FILENAME); - if (ret < 0) { - ERR("Fail allocating config file path"); - } - - return file_path; -} - -/* - * open_config - * - * Return an open FILE pointer to the config file. - */ -static FILE *open_config(char *path, const char *mode) -{ - FILE *fp = NULL; - char *file_path; - - file_path = get_config_file_path(path); - if (file_path == NULL) { - goto error; - } - - fp = fopen(file_path, mode); - if (fp == NULL) { - perror("config file"); - goto error; - } - -error: - if (file_path) { - free(file_path); - } - return fp; -} - -/* - * create_config_file - * - * Create the empty config file a the path. - */ -static int create_config_file(char *path) -{ - int ret; - FILE *fp; - - fp = open_config(path, "w+"); - if (fp == NULL) { - ERR("Unable to create config file"); - ret = -1; - goto error; - } - - ret = fclose(fp); - -error: - return ret; -} - -/* - * create_config_dir - * - * Create the empty config dir. - */ -static int create_config_dir(char *path) -{ - int ret; - - /* Create session directory .lttng */ - ret = mkdir(path, S_IRWXU | S_IRGRP | S_IXGRP); - if (ret < 0) { - if (errno == EEXIST) { - ERR("Session already exist at %s", path); - } else { - perror("mkdir config"); - ERR("Couldn't init config directory at %s", path); - } - ret = -errno; - goto error; - } - -error: - return ret; -} - -/* - * write_config - * - * Append data to the config file in file_path - */ -static void write_config(char *file_path, size_t size, char *data) -{ - FILE *fp; - - fp = open_config(file_path, "a"); - if (fp == NULL) { - goto error; - } - - /* Write session name into config file */ - fwrite(data, size, 1, fp); - fclose(fp); - -error: - return; -} - -/* - * config_get_default_path - * - * Return the default path to config directory which is the current working - * directory. User must free() the returned allocated string. - */ -char *config_get_default_path(void) -{ - char *alloc_path; - - alloc_path = getcwd(NULL, 0); - if (alloc_path == NULL) { - perror("getcwd"); - } - - return alloc_path; -} - -/* - * config_destroy - * - * Destroy directory config and file config. - */ -void config_destroy(char *path) -{ - int ret; - char *config_path; - - config_path = get_config_file_path(path); - - ret = remove(config_path); - if (ret < 0) { - perror("remove config file"); - } - - ret = rmdir(path); - if (ret < 0) { - perror("rmdir config dir"); - } - - free(config_path); -} - -/* - * config_read_session_name - * - * Return sesson name from the config file. - */ -char *config_read_session_name(char *path) -{ - int ret; - FILE *fp; - char var[NAME_MAX], *session_name; - - fp = open_config(path, "r"); - if (fp == NULL) { - ERR("Can't find valid lttng config in %s", path); - goto error; - } - - session_name = malloc(NAME_MAX); - while (!feof(fp)) { - if ((ret = fscanf(fp, "%[^'=']=%s\n", var, session_name)) != 2) { - if (ret == -1) { - ERR("Missing session=NAME in config file."); - goto error; - } - continue; - } - - if (strcmp(var, "session") == 0) { - goto found; - } - } - - fclose(fp); - -error: - return NULL; - -found: - fclose(fp); - return session_name; - -} - -/* - * config_add_session_name - * - * Write session name option to the config file. - */ -int config_add_session_name(char *path, char *name) -{ - int ret; - char session_name[NAME_MAX]; - - ret = snprintf(session_name, NAME_MAX, "session=%s\n", name); - if (ret < 0) { - goto error; - } - - write_config(path, ret, session_name); - ret = 0; - -error: - return ret; -} - -/* - * config_generate_dir_path - * - * Return allocated path string to path/CONFIG_DIRNAME. - */ -char *config_generate_dir_path(char *path) -{ - int ret; - char *new_path; - - ret = asprintf(&new_path, "%s/%s", path, CONFIG_DIRNAME); - if (ret < 0) { - perror("config path problem"); - goto error; - } - -error: - return new_path; -} - -/* - * config_init - * - * Init configuration directory and file. - */ -int config_init(char *path) -{ - int ret; - - /* Create config directory (.lttng) */ - ret = create_config_dir(path); - if (ret < 0) { - goto error; - } - - /* Create default config file */ - ret = create_config_file(path); - if (ret < 0) { - goto error; - } - - DBG("Init config session in %s", path); - -error: - return ret; -}