1 /* 2 * Operation invocation. 3 * 4 * Copyright (C) 2019, 2022 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (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, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include <stdio.h> 23 #include <string.h> 24 25 #include "ops.h" 26 27 28 29 /* Operations exposed by the program. */ 30 31 extern struct operation operations[]; 32 33 34 35 /* Produce a general result condition from the invocation of an operation. */ 36 37 int handle_op_result(const char *operation, enum op_results op_result) 38 { 39 if (op_result == OP_UNKNOWN) 40 { 41 fprintf(stderr, "Operation not recognised: %s\n", operation); 42 return 1; 43 } 44 else if (op_result == OP_FAILED) 45 { 46 fprintf(stderr, "Operation failed: %s\n", operation); 47 return 1; 48 } 49 else 50 return 0; 51 } 52 53 /* Invocation of operations. */ 54 55 enum op_results run_operation(ext2_filsys fs, const char *operation, int argc, char *argv[]) 56 { 57 struct operation *op; 58 int exitcode; 59 60 for (op = &operations[0]; op->name != NULL; op++) 61 { 62 if (!strcmp(operation, op->name)) 63 { 64 exitcode = op->fn(fs, argc, argv); 65 if (exitcode) 66 return OP_FAILED; 67 break; 68 } 69 } 70 71 if (op->name == NULL) 72 return OP_UNKNOWN; 73 74 return OP_SUCCESS; 75 } 76 77 /* vim: tabstop=4 expandtab shiftwidth=4 78 */