| 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 | |
| 21 | static GKeyFile *config; |
| 22 | |
| 23 | static const gchar *CONFIG_KEYS[] = { |
| 24 | "PrettyHostname", |
| 25 | "IconName", |
| 26 | "ChassisType" |
| 27 | }; |
| 28 | |
| 29 | /* NULL if key doesn't exist */ |
| 30 | gchar *get_option(gchar *key, gchar *group) { |
| 31 | |
| 32 | if(!group) |
| 33 | group = "default"; |
| 34 | |
| 35 | return g_key_file_get_string(config, group, key, NULL); |
| 36 | } |
| 37 | |
| 38 | /* false if key isn't already defined or value is invalid */ |
| 39 | gboolean set_option(gchar *key, gchar *value, gchar *group) { |
| 40 | |
| 41 | if(!group) |
| 42 | group = "default"; |
| 43 | |
| 44 | if(!g_key_file_get_string(config, group, key, NULL)) |
| 45 | return FALSE; |
| 46 | |
| 47 | //TODO safteycheck value |
| 48 | g_key_file_set_string(config, group, key, value); |
| 49 | return TRUE; |
| 50 | } |
| 51 | |
| 52 | /* initial load/check */ |
| 53 | gboolean config_init() { |
| 54 | |
| 55 | if(config) |
| 56 | return TRUE; //already init'd |
| 57 | |
| 58 | config = g_key_file_new(); |
| 59 | |
| 60 | const gchar *config_path; |
| 61 | GStatBuf *config_lstat; |
| 62 | |
| 63 | config_path = "/etc/systemd_compat.conf"; |
| 64 | |
| 65 | /* does conf exist? */ |
| 66 | if(g_lstat(config_path, config_lstat)) { |
| 67 | |
| 68 | /* if not, can we write it */ |
| 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; |
| 75 | config_descr = g_open(config_path, O_CREAT, 644); |
| 76 | |
| 77 | gchar *posix_hostname; |
| 78 | posix_hostname = g_malloc(255); |
| 79 | |
| 80 | gethostname(posix_hostname, 255); |
| 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 | } |