1 /** 2 * \file detect.c 3 * Example program to detect a device and list capabilities. 4 * 5 * Copyright (C) 2005-2008 Linus Walleij <triad (at) df.lth.se> 6 * Copyright (C) 2007 Ted Bullock <tbullock (at) canada.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 21 * Boston, MA 02111-1307, USA. 22 */ 23 #include "common.h" 24 #include "util.h" 25 #include <unistd.h> 26 #include <stdlib.h> 27 #include <stdio.h> 28 #include <string.h> 29 #include <errno.h> 30 31 #define XML_BUFSIZE 0x10000 32 33 static void dump_xml_fragment(uint8_t *buf, uint32_t len) 34 { 35 static int endianness = 0; // 0 = LE, 1 = BE 36 uint32_t bp = 0; 37 38 while (bp < len) { 39 if (buf[bp+0] == 0xFF && buf[bp+1] == 0xFE) { 40 endianness = 0; 41 } else if (buf[bp+0] == 0xFE && buf[bp+1] == 0xff) { 42 endianness = 1; 43 } else { 44 uint16_t tmp; 45 46 if (endianness == 0) { 47 tmp = buf[bp+1] << 8 | buf[bp+0]; 48 } else { 49 tmp = buf[bp+0] << 8 | buf[bp+1]; 50 } 51 // Fix this some day, we only print ISO 8859-1 correctly here, 52 // should atleast support UTF-8. 53 printf("%c", (uint8_t) tmp); 54 } 55 bp += 2; 56 } 57 printf("\n"); 58 } 59 60 int main (int argc, char **argv) 61 { 62 LIBMTP_raw_device_t * rawdevices; 63 int numrawdevices; 64 LIBMTP_error_number_t err; 65 int i; 66 67 LIBMTP_Init(); 68 69 fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n"); 70 71 fprintf(stdout, "Listing raw device(s)\n"); 72 err = LIBMTP_Detect_Raw_Devices(&rawdevices, &numrawdevices); 73 switch(err) { 74 case LIBMTP_ERROR_NO_DEVICE_ATTACHED: 75 fprintf(stdout, " No raw devices found.\n"); 76 return 0; 77 case LIBMTP_ERROR_CONNECTING: 78 fprintf(stderr, "Detect: There has been an error connecting. Exiting\n"); 79 return 1; 80 case LIBMTP_ERROR_MEMORY_ALLOCATION: 81 fprintf(stderr, "Detect: Encountered a Memory Allocation Error. Exiting\n"); 82 return 1; 83 case LIBMTP_ERROR_NONE: 84 { 85 int i; 86 87 fprintf(stdout, " Found %d device(s):\n", numrawdevices); 88 for (i = 0; i < numrawdevices; i++) { 89 if (rawdevices[i].device_entry.vendor != NULL || 90 rawdevices[i].device_entry.product != NULL) { 91 fprintf(stdout, " %s: %s (%04x:%04x) @ bus %d, dev %d\n", 92 rawdevices[i].device_entry.vendor, 93 rawdevices[i].device_entry.product, 94 rawdevices[i].device_entry.vendor_id, 95 rawdevices[i].device_entry.product_id, 96 rawdevices[i].bus_location, 97 rawdevices[i].devnum); 98 } else { 99 fprintf(stdout, " %04x:%04x @ bus %d, dev %d\n", 100 rawdevices[i].device_entry.vendor_id, 101 rawdevices[i].device_entry.product_id, 102 rawdevices[i].bus_location, 103 rawdevices[i].devnum); 104 } 105 } 106 } 107 break; 108 case LIBMTP_ERROR_GENERAL: 109 default: 110 fprintf(stderr, "Unknown connection error.\n"); 111 return 1; 112 } 113 114 /* Iterate over connected MTP devices */ 115 fprintf(stdout, "Attempting to connect device(s)\n"); 116 for (i = 0; i < numrawdevices; i++) { 117 LIBMTP_mtpdevice_t *device; 118 LIBMTP_file_t *files; 119 char *friendlyname; 120 char *syncpartner; 121 char *sectime; 122 char *devcert; 123 uint16_t *filetypes; 124 uint16_t filetypes_len; 125 uint8_t maxbattlevel; 126 uint8_t currbattlevel; 127 int ret; 128 129 device = LIBMTP_Open_Raw_Device(&rawdevices[i]); 130 if (device == NULL) { 131 fprintf(stderr, "Unable to open raw device %d\n", i); 132 continue; 133 } 134 135 LIBMTP_Dump_Errorstack(device); 136 LIBMTP_Clear_Errorstack(device); 137 LIBMTP_Dump_Device_Info(device); 138 139 printf("MTP-specific device properties:\n"); 140 // The friendly name 141 friendlyname = LIBMTP_Get_Friendlyname(device); 142 if (friendlyname == NULL) { 143 fprintf(stdout, " Friendly name: (NULL)\n"); 144 } else { 145 fprintf(stdout, " Friendly name: %s\n", friendlyname); 146 free(friendlyname); 147 } 148 syncpartner = LIBMTP_Get_Syncpartner(device); 149 if (syncpartner == NULL) { 150 fprintf(stdout, " Synchronization partner: (NULL)\n"); 151 } else { 152 fprintf(stdout, " Synchronization partner: %s\n", syncpartner); 153 free(syncpartner); 154 } 155 156 // Some battery info 157 ret = LIBMTP_Get_Batterylevel(device, &maxbattlevel, &currbattlevel); 158 if (ret == 0) { 159 fprintf(stdout, " Battery level %d of %d (%d%%)\n",currbattlevel, maxbattlevel, 160 (int) ((float) currbattlevel/ (float) maxbattlevel * 100.0)); 161 } else { 162 // Silently ignore. Some devices does not support getting the 163 // battery level. 164 LIBMTP_Clear_Errorstack(device); 165 } 166 167 ret = LIBMTP_Get_Supported_Filetypes(device, &filetypes, &filetypes_len); 168 if (ret == 0) { 169 uint16_t i; 170 171 printf("libmtp supported (playable) filetypes:\n"); 172 for (i = 0; i < filetypes_len; i++) { 173 fprintf(stdout, " %s\n", LIBMTP_Get_Filetype_Description(filetypes[i])); 174 } 175 } else { 176 LIBMTP_Dump_Errorstack(device); 177 LIBMTP_Clear_Errorstack(device); 178 } 179 180 // Secure time XML fragment 181 ret = LIBMTP_Get_Secure_Time(device, §ime); 182 if (ret == 0 && sectime != NULL) { 183 fprintf(stdout, "\nSecure Time:\n%s\n", sectime); 184 free(sectime); 185 } else { 186 // Silently ignore - there may be devices not supporting secure time. 187 LIBMTP_Clear_Errorstack(device); 188 } 189 190 // Device certificate XML fragment 191 ret = LIBMTP_Get_Device_Certificate(device, &devcert); 192 if (ret == 0 && devcert != NULL) { 193 fprintf(stdout, "\nDevice Certificate:\n%s\n", devcert); 194 free(devcert); 195 } else { 196 fprintf(stdout, "Unable to acquire device certificate, perhaps this device " 197 "does not support this\n"); 198 LIBMTP_Dump_Errorstack(device); 199 LIBMTP_Clear_Errorstack(device); 200 } 201 202 // Try to get Media player device info XML file... 203 files = LIBMTP_Get_Filelisting_With_Callback(device, NULL, NULL); 204 if (files != NULL) { 205 LIBMTP_file_t *file, *tmp; 206 file = files; 207 while (file != NULL) { 208 if (!strcmp(file->filename, "WMPInfo.xml") || 209 !strcmp(file->filename, "WMPinfo.xml") || 210 !strcmp(file->filename, "default-capabilities.xml")) { 211 if (file->item_id != 0) { 212 /* Dump this file */ 213 FILE *xmltmp = tmpfile(); 214 int tmpfiledescriptor = fileno(xmltmp); 215 216 if (tmpfiledescriptor != -1) { 217 int ret = LIBMTP_Get_Track_To_File_Descriptor(device, 218 file->item_id, 219 tmpfiledescriptor, 220 NULL, 221 NULL); 222 if (ret == 0) { 223 uint8_t *buf = NULL; 224 uint32_t readbytes; 225 226 buf = malloc(XML_BUFSIZE); 227 if (buf == NULL) { 228 printf("Could not allocate %08x bytes...\n", XML_BUFSIZE); 229 LIBMTP_Dump_Errorstack(device); 230 LIBMTP_Clear_Errorstack(device); 231 free(rawdevices); 232 return 1; 233 } 234 235 lseek(tmpfiledescriptor, 0, SEEK_SET); 236 readbytes = read(tmpfiledescriptor, (void*) buf, XML_BUFSIZE); 237 238 if (readbytes >= 2 && readbytes < XML_BUFSIZE) { 239 fprintf(stdout, "\n%s file contents:\n", file->filename); 240 dump_xml_fragment(buf, readbytes); 241 } else { 242 perror("Unable to read file"); 243 LIBMTP_Dump_Errorstack(device); 244 LIBMTP_Clear_Errorstack(device); 245 } 246 free(buf); 247 } else { 248 LIBMTP_Dump_Errorstack(device); 249 LIBMTP_Clear_Errorstack(device); 250 } 251 fclose(xmltmp); 252 } 253 } 254 } 255 tmp = file; 256 file = file->next; 257 LIBMTP_destroy_file_t(tmp); 258 } 259 } 260 LIBMTP_Release_Device(device); 261 } /* End For Loop */ 262 263 free(rawdevices); 264 265 printf("OK.\n"); 266 267 return 0; 268 } 269
