1 /* 2 * QEMU firmware and keymap file search 3 * 4 * Copyright (c) 2003-2020 QEMU contributors 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qemu/datadir.h" 27 #include "qemu/cutils.h" 28 #include "trace.h" 29 30 static const char *data_dir[16]; 31 static int data_dir_idx; 32 33 char *qemu_find_file(int type, const char *name) 34 { 35 int i; 36 const char *subdir; 37 char *buf; 38 39 /* Try the name as a straight path first */ 40 if (access(name, R_OK) == 0) { 41 trace_load_file(name, name); 42 return g_strdup(name); 43 } 44 45 switch (type) { 46 case QEMU_FILE_TYPE_BIOS: 47 subdir = ""; 48 break; 49 case QEMU_FILE_TYPE_KEYMAP: 50 subdir = "keymaps/"; 51 break; 52 default: 53 abort(); 54 } 55 56 for (i = 0; i < data_dir_idx; i++) { 57 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name); 58 if (access(buf, R_OK) == 0) { 59 trace_load_file(name, buf); 60 return buf; 61 } 62 g_free(buf); 63 } 64 return NULL; 65 } 66 67 void qemu_add_data_dir(char *path) 68 { 69 int i; 70 71 if (path == NULL) { 72 return; 73 } 74 if (data_dir_idx == ARRAY_SIZE(data_dir)) { 75 return; 76 } 77 for (i = 0; i < data_dir_idx; i++) { 78 if (strcmp(data_dir[i], path) == 0) { 79 g_free(path); /* duplicate */ 80 return; 81 } 82 } 83 data_dir[data_dir_idx++] = path; 84 } 85 86 void qemu_add_default_firmwarepath(void) 87 { 88 static const char * const dirs[] = { 89 CONFIG_QEMU_FIRMWAREPATH 90 NULL 91 }; 92 93 size_t i; 94 95 /* add configured firmware directories */ 96 for (i = 0; dirs[i] != NULL; i++) { 97 qemu_add_data_dir(get_relocated_path(dirs[i])); 98 } 99 100 /* try to find datadir relative to the executable path */ 101 qemu_add_data_dir(get_relocated_path(CONFIG_QEMU_DATADIR)); 102 } 103 104 void qemu_list_data_dirs(void) 105 { 106 int i; 107 for (i = 0; i < data_dir_idx; i++) { 108 printf("%s\n", data_dir[i]); 109 } 110 } 111