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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include "log.h"
#include "cmdbase.h"
#include "file.h"
#include "parse.h"
#include "program.h"
#include "options.h"
const char standardStreamArgument[] = "-";
const char standardInputName[] = "<standard-input>";
const char standardOutputName[] = "<standard-output>";
const char standardErrorName[] = "<standard-error>";
const char *
getProgramName (void) {
return programName;
}
const char *
getProgramDirectory (void) {
static const char *programDirectory = NULL;
if (!programDirectory) {
if ((programDirectory = getPathDirectory(programPath))) {
logMessage(LOG_DEBUG, "program directory: %s", programDirectory);
registerProgramMemory("program-directory", &programDirectory);
} else {
logMessage(LOG_WARNING, gettext("cannot determine program directory"));
programDirectory = "";
}
}
if (!*programDirectory) return NULL;
return programDirectory;
}
char *
makeProgramPath (const char *name) {
const char *directory = getProgramDirectory();
if (!directory) return NULL;
return makePath(directory, name);
}
const char *
nextCommandArgument (char ***argv, int *argc, const char *description) {
if (*argc) {
*argc -= 1;
return *(*argv)++;
}
if (!description) return NULL;
logMessage(LOG_ERR, "missing %s", description);
exit(PROG_EXIT_SYNTAX);
}
void
noMoreCommandArguments (char **argv, int argc) {
if (argc) {
logMessage(LOG_ERR, "too many arguments: %s", argv[0]);
exit(PROG_EXIT_SYNTAX);
}
}
int
toAbsoluteInstallPath (char **path) {
const char *programDirectory = getProgramDirectory();
if (!programDirectory) programDirectory = CURRENT_DIRECTORY_NAME;
return anchorRelativePath(path, programDirectory);
}
char *opt_helpersDirectory = HELPERS_DIRECTORY;
char *
makeHelperPath (const char *name) {
char *path = NULL;
char *directory = NULL;
if (changeStringSetting(&directory, opt_helpersDirectory)) {
if (toAbsoluteInstallPath(&directory)) {
path = makePath(directory, name);
}
}
if (directory) free(directory);
return path;
}
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