1 /////////////////////////////////////////////////////////////////////////////// 2 // 3 /// \file tuklib_exit.c 4 /// \brief Close stdout and stderr, and exit 5 // 6 // Author: Lasse Collin 7 // 8 // This file has been put into the public domain. 9 // You can do whatever you want with this file. 10 // 11 /////////////////////////////////////////////////////////////////////////////// 12 13 #include "tuklib_common.h" 14 15 #include <stdlib.h> 16 #include <stdio.h> 17 18 #include "tuklib_gettext.h" 19 #include "tuklib_progname.h" 20 #include "tuklib_exit.h" 21 22 23 extern void 24 tuklib_exit(int status, int err_status, int show_error) 25 { 26 if (status != err_status) { 27 // Close stdout. If something goes wrong, 28 // print an error message to stderr. 29 const int ferror_err = ferror(stdout); 30 const int fclose_err = fclose(stdout); 31 if (ferror_err || fclose_err) { 32 status = err_status; 33 34 // If it was fclose() that failed, we have the reason 35 // in errno. If only ferror() indicated an error, 36 // we have no idea what the reason was. 37 if (show_error) 38 fprintf(stderr, "%s: %s: %s\n", progname, 39 _("Writing to standard " 40 "output failed"), 41 fclose_err ? strerror(errno) 42 : _("Unknown error")); 43 } 44 } 45 46 if (status != err_status) { 47 // Close stderr. If something goes wrong, there's 48 // nothing where we could print an error message. 49 // Just set the exit status. 50 const int ferror_err = ferror(stderr); 51 const int fclose_err = fclose(stderr); 52 if (fclose_err || ferror_err) 53 status = err_status; 54 } 55 56 exit(status); 57 } 58