| 1 | /* |
| 2 | * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc> |
| 3 | * |
| 4 | * Permission to use, copy, modify, and distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
| 17 | #include <unistd.h> |
| 18 | #include <fcntl.h> |
| 19 | #include <gio/gio.h> |
| 20 | #include "config.h" |
| 21 | |
| 22 | static GKeyFile *config; |
| 23 | static int config_descr; |
| 24 | static gchar *data_dir; |
| 25 | |
| 26 | /* NULL if key doesn't exist */ |
| 27 | gchar *get_option(gchar *key, gchar *group) { |
| 28 | |
| 29 | if(!group) |
| 30 | group = "default"; |
| 31 | |
| 32 | return g_key_file_get_string(config, group, key, NULL); |
| 33 | } |
| 34 | |
| 35 | /* false if key isn't already defined or value is invalid */ |
| 36 | gboolean set_option(gchar *key, gchar *value, gchar *group) { |
| 37 | |
| 38 | if(!group) |
| 39 | group = "default"; |
| 40 | |
| 41 | if(!g_key_file_get_string(config, group, key, NULL)) |
| 42 | return FALSE; |
| 43 | |
| 44 | //TODO safteycheck value |
| 45 | g_key_file_set_string(config, group, key, value); |
| 46 | return TRUE; |
| 47 | } |
| 48 | |
| 49 | /* initial load/check */ |
| 50 | gboolean config_init() { |
| 51 | |
| 52 | /* config is already set */ |
| 53 | if(config) |
| 54 | return TRUE; |
| 55 | |
| 56 | config = g_key_file_new(); |
| 57 | |
| 58 | const gchar *config_path; |
| 59 | GStatBuf *config_lstat; |
| 60 | int config_lstat_ret; |
| 61 | |
| 62 | config_path = "/etc/systemd_compat.conf"; |
| 63 | config_lstat_ret = g_lstat(config_path, config_lstat); |
| 64 | |
| 65 | /* does conf exist? */ |
| 66 | if(config_lstat_ret) { |
| 67 | |
| 68 | /* if not, can we write to where it should be? */ |
| 69 | if(g_access("/etc/", W_OK)) { |
| 70 | g_printf("%s\n", "no write permissions for /etc/! exiting.."); |
| 71 | return FALSE; |
| 72 | } |
| 73 | |
| 74 | int config_descr; /*TODO add to descr array for sigints, etc */ |
| 75 | config_descr = g_open(config_path, O_CREAT, 644); |
| 76 | |
| 77 | gchar *posix_hostname; |
| 78 | posix_hostname = g_malloc(HOST_NAME_MAX); |
| 79 | |
| 80 | gethostname(posix_hostname, HOST_NAME_MAX); |
| 81 | |
| 82 | g_key_file_set_string(config, "hostnamed", "Hostname", posix_hostname); |
| 83 | g_key_file_set_string(config, "hostnamed", "PrettyHostname", ""); |
| 84 | g_key_file_set_string(config, "hostnamed", "IconName", "Computer"); |
| 85 | g_key_file_set_string(config, "hostnamed", "ChassisType","laptop"); /*TODO set these correctly */ |
| 86 | |
| 87 | if(!g_key_file_save_to_file(config, config_path, NULL)) { |
| 88 | g_printf("failed to write config to %s!\n", config_path); |
| 89 | g_free(posix_hostname); |
| 90 | return FALSE; |
| 91 | } |
| 92 | |
| 93 | g_printf("wrote config to %s\n", config_path); |
| 94 | |
| 95 | g_free(posix_hostname); |
| 96 | |
| 97 | return TRUE; |
| 98 | |
| 99 | /* it does exist, read it */ |
| 100 | } else { |
| 101 | |
| 102 | if(g_access(config_path, W_OK)) { |
| 103 | g_printf("%s\n", "no write permissions for /etc/! exiting.."); |
| 104 | return FALSE; |
| 105 | } else if(g_key_file_load_from_file(config, config_path, G_KEY_FILE_KEEP_COMMENTS, NULL)) |
| 106 | return TRUE; |
| 107 | |
| 108 | g_printf("could not read config at %s! exiting..", config_path); |
| 109 | return FALSE; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | gboolean init_xml() { |
| 114 | |
| 115 | const gchar * const *data_dir_prefix; |
| 116 | int xml_lstat_ret; |
| 117 | GStatBuf *xml_lstat; |
| 118 | |
| 119 | data_dir_prefix = g_get_system_data_dirs(); |
| 120 | data_dir = g_strconcat(data_dir_prefix[0], "systemd_compat", NULL); |
| 121 | |
| 122 | xml_lstat_ret = g_lstat(data_dir, xml_lstat); |
| 123 | |
| 124 | /* does xml dir exist? */ |
| 125 | if(xml_lstat_ret) { |
| 126 | |
| 127 | /* if not, can we write to where it should be? */ |
| 128 | if(g_access(data_dir_prefix[0], W_OK)) { |
| 129 | g_printf("no write permissions for %s! exiting...\n", data_dir_prefix[0]); |
| 130 | return FALSE; |
| 131 | } |
| 132 | |
| 133 | g_printf("creating xml data directory %s...\n", data_dir); |
| 134 | |
| 135 | if(g_mkdir(data_dir, 644) || g_access) { |
| 136 | g_printf("failed to create dir %s...\n", data_dir); |
| 137 | return FALSE; |
| 138 | } |
| 139 | |
| 140 | /* read in xml files from conf/ */ |
| 141 | if(!read_xml_from_installconf()) { |
| 142 | g_printf("failed to read xml configs in conf/...\n"); |
| 143 | return FALSE; |
| 144 | } |
| 145 | |
| 146 | /* write our configs to system data dir */ |
| 147 | if(!populate_xml_data_dir()) { |
| 148 | g_printf("failed to write xml configs to %s...\n", data_dir); |
| 149 | return FALSE; |
| 150 | } |
| 151 | |
| 152 | /* get descriptors from freshly-installed configs */ |
| 153 | if(!set_xml_descriptors()) { |
| 154 | g_printf("failed to fopen xml configs...\n"); |
| 155 | return FALSE; |
| 156 | } |
| 157 | |
| 158 | return TRUE; |
| 159 | |
| 160 | /* it does exist, read it */ |
| 161 | } else { |
| 162 | |
| 163 | if(!set_xml_descriptors()) { |
| 164 | g_printf("failed to fopen xml configs...\n"); |
| 165 | return FALSE; |
| 166 | } |
| 167 | |
| 168 | return TRUE; |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | void clean_config() { |
| 173 | |
| 174 | //TODO g_ptr_array all of this |
| 175 | g_free(config); |
| 176 | g_free(data_dir); |
| 177 | g_close(config_descr, NULL); |
| 178 | } |