1*fe6060f1SDimitry Andric //===- AutoConvert.cpp - Auto conversion between ASCII/EBCDIC -------------===// 2*fe6060f1SDimitry Andric // 3*fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*fe6060f1SDimitry Andric // 7*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 8*fe6060f1SDimitry Andric // 9*fe6060f1SDimitry Andric // This file contains functions used for auto conversion between 10*fe6060f1SDimitry Andric // ASCII/EBCDIC codepages specific to z/OS. 11*fe6060f1SDimitry Andric // 12*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 13*fe6060f1SDimitry Andric 14*fe6060f1SDimitry Andric #ifdef __MVS__ 15*fe6060f1SDimitry Andric 16*fe6060f1SDimitry Andric #include "llvm/Support/AutoConvert.h" 17*fe6060f1SDimitry Andric #include <fcntl.h> 18*fe6060f1SDimitry Andric #include <sys/stat.h> 19*fe6060f1SDimitry Andric 20*fe6060f1SDimitry Andric std::error_code llvm::disableAutoConversion(int FD) { 21*fe6060f1SDimitry Andric static const struct f_cnvrt Convert = { 22*fe6060f1SDimitry Andric SETCVTOFF, // cvtcmd 23*fe6060f1SDimitry Andric 0, // pccsid 24*fe6060f1SDimitry Andric (short)FT_BINARY, // fccsid 25*fe6060f1SDimitry Andric }; 26*fe6060f1SDimitry Andric if (fcntl(FD, F_CONTROL_CVT, &Convert) == -1) 27*fe6060f1SDimitry Andric return std::error_code(errno, std::generic_category()); 28*fe6060f1SDimitry Andric return std::error_code(); 29*fe6060f1SDimitry Andric } 30*fe6060f1SDimitry Andric 31*fe6060f1SDimitry Andric std::error_code llvm::enableAutoConversion(int FD) { 32*fe6060f1SDimitry Andric struct f_cnvrt Query = { 33*fe6060f1SDimitry Andric QUERYCVT, // cvtcmd 34*fe6060f1SDimitry Andric 0, // pccsid 35*fe6060f1SDimitry Andric 0, // fccsid 36*fe6060f1SDimitry Andric }; 37*fe6060f1SDimitry Andric 38*fe6060f1SDimitry Andric if (fcntl(FD, F_CONTROL_CVT, &Query) == -1) 39*fe6060f1SDimitry Andric return std::error_code(errno, std::generic_category()); 40*fe6060f1SDimitry Andric 41*fe6060f1SDimitry Andric Query.cvtcmd = SETCVTALL; 42*fe6060f1SDimitry Andric Query.pccsid = 43*fe6060f1SDimitry Andric (FD == STDIN_FILENO || FD == STDOUT_FILENO || FD == STDERR_FILENO) 44*fe6060f1SDimitry Andric ? 0 45*fe6060f1SDimitry Andric : CCSID_UTF_8; 46*fe6060f1SDimitry Andric // Assume untagged files to be IBM-1047 encoded. 47*fe6060f1SDimitry Andric Query.fccsid = (Query.fccsid == FT_UNTAGGED) ? CCSID_IBM_1047 : Query.fccsid; 48*fe6060f1SDimitry Andric if (fcntl(FD, F_CONTROL_CVT, &Query) == -1) 49*fe6060f1SDimitry Andric return std::error_code(errno, std::generic_category()); 50*fe6060f1SDimitry Andric return std::error_code(); 51*fe6060f1SDimitry Andric } 52*fe6060f1SDimitry Andric 53*fe6060f1SDimitry Andric std::error_code llvm::setFileTag(int FD, int CCSID, bool Text) { 54*fe6060f1SDimitry Andric assert((!Text || (CCSID != FT_UNTAGGED && CCSID != FT_BINARY)) && 55*fe6060f1SDimitry Andric "FT_UNTAGGED and FT_BINARY are not allowed for text files"); 56*fe6060f1SDimitry Andric struct file_tag Tag; 57*fe6060f1SDimitry Andric Tag.ft_ccsid = CCSID; 58*fe6060f1SDimitry Andric Tag.ft_txtflag = Text; 59*fe6060f1SDimitry Andric Tag.ft_deferred = 0; 60*fe6060f1SDimitry Andric Tag.ft_rsvflags = 0; 61*fe6060f1SDimitry Andric 62*fe6060f1SDimitry Andric if (fcntl(FD, F_SETTAG, &Tag) == -1) 63*fe6060f1SDimitry Andric return std::error_code(errno, std::generic_category()); 64*fe6060f1SDimitry Andric return std::error_code(); 65*fe6060f1SDimitry Andric } 66*fe6060f1SDimitry Andric 67*fe6060f1SDimitry Andric #endif // __MVS__ 68