1 /* 2 * libcomcom.d 3 * Copyright (C) 2019 Victor Porton <porton@narod.ru> 4 * 5 * This program is free software: you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation, either version 3 of the License, or 8 * (at your option) any later version. 9 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <https://www.gnu.org/licenses/>. 17 */ 18 19 module libcomcom_wrapper; 20 21 import std.string; 22 import std.algorithm.iteration : map; 23 import std.array : array; 24 import std.exception : ErrnoException; 25 import libcomcom; 26 27 /// Initialize libcomcom in the usual way. 28 /// For advanced initialization use libcomcom_init_*() functions directly. 29 void libComComInitializer() 30 { 31 int res; 32 res = libcomcom_init_stratum(); 33 if (res != 0) { 34 throw new ErrnoException("libcomcom_init_stratum()"); // TODO: Localization 35 } 36 libcomcom_set_default_terminate2(); 37 if (res != 0) { 38 throw new ErrnoException("libcomcom_set_default_terminate()"); // TODO: Localization 39 } 40 } 41 42 /// Deinitialize libcomcom in the usual way. 43 /// For advanced deinitialization use libcomcom_*() functions directly. 44 void libComComDestructor() 45 { 46 cast(void) libcomcom_reset_default_terminate2(); 47 cast(void) libcomcom_destroy(); 48 } 49 50 string _runCommand(string file, 51 const(char[][]) argv, 52 const char** childEnvp, 53 const char[] input, 54 int timeout = -1) 55 { 56 const(char*) output; 57 size_t output_len; 58 const char*[] childArgv = map!toStringz(argv).array ~ null; 59 immutable int res = libcomcom_run_command(input.ptr, input.length, 60 &output, &output_len, 61 file.toStringz, childArgv.ptr, 62 childEnvp, 63 timeout); 64 if (res != 0) { 65 throw new ErrnoException("Run command"); // TODO: Localization 66 } 67 import core.stdc.stdlib : free; 68 scope(exit) free(cast(void*) output); 69 return output[0..output_len].idup; 70 } 71 72 /// Run an OS command `file` with the given `input` and receive its output. 73 /// This functions passes the environment variables without changes. 74 string runCommand(string file, const(char[][]) argv, const char[] input, int timeout = -1) { 75 return _runCommand(file, argv, null, input, timeout); 76 } 77 78 /// Run an OS command `file` with the given `input` and receive its output. 79 /// This functions allows to pass environment variables. 80 string runCommandWithEnvironment(string file, 81 const(char[][]) argv, 82 const(char[][]) envp, 83 const char[] input, 84 int timeout = -1) 85 { 86 const char*[] childEnv = map!toStringz(envp).array ~ null; 87 return _runCommand(file, argv, childEnv.ptr, input, timeout); 88 } 89