Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ |
| 2 | /* dbus-uuidgen.c Utility program to create UUIDs |
| 3 | * |
| 4 | * Copyright (C) 2006 Red Hat, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | #include <dbus/dbus-uuidgen.h> |
| 28 | #include <dbus/dbus.h> |
| 29 | |
| 30 | static void |
| 31 | usage (char *name, int ecode) |
| 32 | { |
| 33 | if (name == NULL) |
| 34 | name = "dbus-uuidgen"; |
| 35 | |
| 36 | fprintf (stderr, "Usage: %s [--ensure[=FILENAME]] [--get[=FILENAME]]\n", name); |
| 37 | exit (ecode); |
| 38 | } |
| 39 | |
| 40 | static void |
| 41 | version (void) |
| 42 | { |
| 43 | printf ("D-Bus UUID Generator %s\n" |
| 44 | "Copyright (C) 2006 Red Hat, Inc.\n" |
| 45 | "This is free software; see the source for copying conditions.\n" |
| 46 | "There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n", |
| 47 | VERSION); |
| 48 | exit (0); |
| 49 | } |
| 50 | |
| 51 | static dbus_bool_t |
| 52 | get_arg (const char *arg, |
| 53 | const char *option, |
| 54 | const char **value_p) |
| 55 | { |
| 56 | const char *fn; |
| 57 | |
| 58 | if (strlen(arg) < strlen(option)) |
| 59 | return FALSE; |
| 60 | |
| 61 | fn = arg + strlen(option); |
| 62 | |
| 63 | if (!(*fn == '=' || *fn == ' ' || *fn == '\0')) |
| 64 | { |
| 65 | usage (NULL, 1); |
| 66 | } |
| 67 | |
| 68 | if (*fn == '=') |
| 69 | ++fn; |
| 70 | |
| 71 | while (*fn == ' ' && *fn != '\0') |
| 72 | ++fn; |
| 73 | |
| 74 | if (*fn != '\0') |
| 75 | { |
| 76 | *value_p = fn; |
| 77 | return TRUE; |
| 78 | } |
| 79 | |
| 80 | return FALSE; |
| 81 | } |
| 82 | |
| 83 | int |
| 84 | main (int argc, char *argv[]) |
| 85 | { |
| 86 | int i; |
| 87 | const char *filename; |
| 88 | dbus_bool_t ensure_uuid; |
| 89 | dbus_bool_t get_uuid; |
| 90 | DBusError error; |
| 91 | |
| 92 | ensure_uuid = FALSE; |
| 93 | get_uuid = FALSE; |
| 94 | |
| 95 | filename = NULL; |
| 96 | |
| 97 | for (i = 1; i < argc; i++) |
| 98 | { |
| 99 | char *arg = argv[i]; |
| 100 | |
| 101 | if (strncmp (arg, "--ensure", strlen("--ensure")) == 0) |
| 102 | { |
| 103 | get_arg (arg, "--ensure", &filename); |
| 104 | ensure_uuid = TRUE; |
| 105 | } |
| 106 | else if (strncmp (arg, "--get", strlen("--get")) == 0) |
| 107 | { |
| 108 | get_arg (arg, "--get", &filename); |
| 109 | get_uuid = TRUE; |
| 110 | } |
| 111 | else if (strcmp (arg, "--help") == 0) |
| 112 | usage (argv[0], 0); |
| 113 | else if (strcmp (arg, "--version") == 0) |
| 114 | version (); |
| 115 | else |
| 116 | usage (argv[0], 1); |
| 117 | } |
| 118 | |
| 119 | if (get_uuid && ensure_uuid) |
| 120 | { |
| 121 | fprintf (stderr, "Can't specify both --get and --ensure\n"); |
| 122 | exit (1); |
| 123 | } |
| 124 | |
| 125 | dbus_error_init (&error); |
| 126 | |
| 127 | if (get_uuid || ensure_uuid) |
| 128 | { |
| 129 | char *uuid; |
| 130 | if (dbus_internal_do_not_use_get_uuid (filename, &uuid, ensure_uuid, &error)) |
| 131 | { |
| 132 | if (get_uuid) /* print nothing on --ensure */ |
| 133 | printf ("%s\n", uuid); |
| 134 | dbus_free (uuid); |
| 135 | } |
| 136 | } |
| 137 | else |
| 138 | { |
| 139 | char *uuid; |
| 140 | if (dbus_internal_do_not_use_create_uuid (&uuid)) |
| 141 | { |
| 142 | printf ("%s\n", uuid); |
| 143 | dbus_free (uuid); |
| 144 | } |
| 145 | else |
| 146 | { |
| 147 | dbus_set_error (&error, DBUS_ERROR_NO_MEMORY, "No memory"); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | if (dbus_error_is_set (&error)) |
| 152 | { |
| 153 | fprintf (stderr, "%s\n", error.message); |
| 154 | dbus_error_free (&error); |
| 155 | exit (1); |
| 156 | } |
| 157 | else |
| 158 | { |
| 159 | exit (0); |
| 160 | } |
| 161 | } |