1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #include <stdlib.h> 25 #include <stdio.h> 26 #include <dlfcn.h> 27 #include <string.h> 28 #include <unistd.h> 29 30 typedef int gboolean; 31 typedef char gchar; 32 typedef struct _GError GError; 33 34 struct _GError 35 { 36 int domain; 37 int code; 38 char *message; 39 }; 40 41 typedef enum { 42 GNOME_VFS_OK 43 } GnomeVFSResult; 44 45 46 /* 47 * HACK: avoid error messages caused by not setting a GNOME program name 48 */ 49 50 gchar* gnome_gconf_get_gnome_libs_settings_relative (const gchar *subkey) 51 { 52 void* handle = dlopen("libglib-2.0.so.0", RTLD_LAZY); 53 54 (void)subkey; /* avoid warning due to unused parameter */ 55 56 if( NULL != handle ) 57 { 58 gchar* (* g_strdup)(const gchar*) = (gchar* (*)(const gchar*)) dlsym(handle, "g_strdup"); 59 60 if( NULL != g_strdup) 61 return g_strdup("/apps/gnome-settings/gnome-open-url"); 62 } 63 64 return NULL; 65 } 66 67 /* 68 * Wrapper function which extracs gnome_url_show from libgnome 69 */ 70 71 gboolean gnome_url_show (const char *url, GError **error) 72 { 73 void* handle = dlopen("libgnomevfs-2.so.0", RTLD_LAZY); 74 gboolean ret = 0; 75 76 (void)error; /* avoid warning due to unused parameter */ 77 78 if( NULL != handle ) 79 { 80 gboolean (* init) (void) = 81 (gboolean (*) (void)) dlsym(handle, "gnome_vfs_init"); 82 83 if( NULL != init && init() ) 84 { 85 GnomeVFSResult (* func) (const char *url) = 86 (GnomeVFSResult (*) (const char *)) dlsym(handle, "gnome_vfs_url_show"); 87 88 if( NULL != func ) 89 ret = (GNOME_VFS_OK == func(url)); 90 } 91 92 dlclose(handle); 93 } 94 95 return ret; 96 } 97 98 /* 99 * The intended use of this tool is to pass the argument to 100 * the gnome_show_url function of libgnome2. 101 */ 102 103 int main(int argc, char *argv[] ) 104 { 105 GError *error = NULL; 106 char *fallback; 107 char *index; 108 109 if( argc != 2 ) 110 { 111 fprintf( stderr, "Usage: gnome-open-url <uri>\n" ); 112 return -1; 113 } 114 115 if( gnome_url_show(argv[1], &error) ) 116 { 117 return 0; 118 } 119 120 /* 121 * launch open-url command by replacing gnome-open-url from 122 * the command line. This is the fallback when running on 123 * remote machines with no GNOME installed. 124 */ 125 126 fallback = strdup(argv[0]); 127 index = strstr(fallback, "gnome-open-url"); 128 if ( NULL != index ) 129 { 130 char *args[3]; 131 strncpy(index, "open-url", 9); 132 args[0] = fallback; 133 args[1] = argv[1]; 134 args[2] = NULL; 135 return execv(fallback, args); 136 } 137 138 return -1; 139 } 140 141 142 143