| 1 | /* |
| 2 | * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com> |
| 3 | * David Goulet <dgoulet@efficios.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License, version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 51 |
| 16 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | */ |
| 18 | |
| 19 | #define _LGPL_SOURCE |
| 20 | #include <assert.h> |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | |
| 25 | #include <common/common.h> |
| 26 | #include <common/defaults.h> |
| 27 | #include <common/utils.h> |
| 28 | |
| 29 | #include "lttng-relayd.h" |
| 30 | #include "utils.h" |
| 31 | |
| 32 | static char *create_output_path_auto(const char *path_name) |
| 33 | { |
| 34 | int ret; |
| 35 | char *traces_path = NULL; |
| 36 | const char *default_path; |
| 37 | |
| 38 | default_path = utils_get_home_dir(); |
| 39 | if (default_path == NULL) { |
| 40 | ERR("Home path not found.\n \ |
| 41 | Please specify an output path using -o, --output PATH"); |
| 42 | goto exit; |
| 43 | } |
| 44 | ret = asprintf(&traces_path, "%s/" DEFAULT_TRACE_DIR_NAME |
| 45 | "/%s", default_path, path_name); |
| 46 | if (ret < 0) { |
| 47 | PERROR("asprintf trace dir name"); |
| 48 | goto exit; |
| 49 | } |
| 50 | exit: |
| 51 | return traces_path; |
| 52 | } |
| 53 | |
| 54 | static char *create_output_path_noauto(const char *path_name) |
| 55 | { |
| 56 | int ret; |
| 57 | char *traces_path = NULL; |
| 58 | char *full_path; |
| 59 | |
| 60 | full_path = utils_expand_path(opt_output_path); |
| 61 | if (!full_path) { |
| 62 | goto exit; |
| 63 | } |
| 64 | |
| 65 | ret = asprintf(&traces_path, "%s/%s", full_path, path_name); |
| 66 | if (ret < 0) { |
| 67 | PERROR("asprintf trace dir name"); |
| 68 | goto exit; |
| 69 | } |
| 70 | exit: |
| 71 | free(full_path); |
| 72 | return traces_path; |
| 73 | } |
| 74 | |
| 75 | /* |
| 76 | * Create the output trace directory path name string. |
| 77 | * |
| 78 | * Return the allocated string containing the path name or else NULL. |
| 79 | */ |
| 80 | char *create_output_path(const char *path_name) |
| 81 | { |
| 82 | assert(path_name); |
| 83 | |
| 84 | if (opt_output_path == NULL) { |
| 85 | return create_output_path_auto(path_name); |
| 86 | } else { |
| 87 | return create_output_path_noauto(path_name); |
| 88 | } |
| 89 | } |