mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
137 lines
3.0 KiB
C
137 lines
3.0 KiB
C
/*
|
|
* util - Utility function library
|
|
*
|
|
* Print standard program messages
|
|
*
|
|
* Copyright IBM Corp. 2016, 2017
|
|
*
|
|
* s390-tools is free software; you can redistribute it and/or modify
|
|
* it under the terms of the MIT license. See LICENSE for details.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
|
|
#include "lib/util_base.h"
|
|
#include "lib/util_prg.h"
|
|
#include "lib/zt_common.h"
|
|
|
|
/*
|
|
* Private data
|
|
*/
|
|
static struct util_prg_l {
|
|
const struct util_prg *prg;
|
|
/* Command used for parsing */
|
|
const char *command;
|
|
} l;
|
|
|
|
struct util_prg_l *util_prg_l = &l;
|
|
|
|
/**
|
|
* Set the current command for command line option processing
|
|
*
|
|
* @param[in] command The current command or NULL for no command
|
|
*/
|
|
void util_prg_set_command(const char *command)
|
|
{
|
|
l.command = command;
|
|
}
|
|
|
|
/**
|
|
* Print program usage information for the --help option
|
|
*/
|
|
void util_prg_print_help(void)
|
|
{
|
|
/* Print usage */
|
|
printf("Usage: %s", program_invocation_short_name);
|
|
if (l.prg->command_args)
|
|
printf(" %s", l.prg->command_args);
|
|
printf(" [OPTIONS]");
|
|
if (l.prg->args)
|
|
printf(" %s", l.prg->args);
|
|
/* Print usage description */
|
|
printf("\n\n");
|
|
util_print_indented(l.prg->desc, 0);
|
|
printf("\n");
|
|
}
|
|
|
|
/**
|
|
* Print program version information for the --version option
|
|
*/
|
|
void util_prg_print_version(void)
|
|
{
|
|
const struct util_prg_copyright *copyright;
|
|
|
|
printf("%s version %s\n", program_invocation_short_name,
|
|
RELEASE_STRING);
|
|
copyright = l.prg->copyright_vec;
|
|
while (copyright->owner) {
|
|
if (copyright->pub_first == copyright->pub_last)
|
|
printf("Copyright %s %d\n", copyright->owner,
|
|
copyright->pub_first);
|
|
else
|
|
printf("Copyright %s %d, %d\n", copyright->owner,
|
|
copyright->pub_first, copyright->pub_last);
|
|
copyright++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Ask user to use the --help option
|
|
*/
|
|
void util_prg_print_parse_error(void)
|
|
{
|
|
if (l.command)
|
|
fprintf(stderr, "Try '%s %s --help' for more information.\n",
|
|
program_invocation_short_name, l.command);
|
|
else
|
|
fprintf(stderr, "Try '%s --help' for more information.\n",
|
|
program_invocation_short_name);
|
|
}
|
|
|
|
/**
|
|
* An option has been specified that is not supported
|
|
*
|
|
* @param[in] option Option string (short or long)
|
|
*/
|
|
void util_prg_print_invalid_option(const char *opt_name)
|
|
{
|
|
fprintf(stderr, "%s: Invalid option '%s'\n",
|
|
program_invocation_short_name, opt_name);
|
|
util_prg_print_parse_error();
|
|
}
|
|
|
|
/**
|
|
* A required argument for an option is missing
|
|
*
|
|
* @param[in] option Option string
|
|
*/
|
|
void util_prg_print_required_arg(const char *opt_name)
|
|
{
|
|
fprintf(stderr, "%s: Option '%s' requires an argument\n",
|
|
program_invocation_short_name, opt_name);
|
|
util_prg_print_parse_error();
|
|
}
|
|
|
|
/**
|
|
* A superfluous invalid positional argument has been specified
|
|
*
|
|
* @param[in] arg_name Name of the invalid argument
|
|
*/
|
|
void util_prg_print_arg_error(const char *arg_name)
|
|
{
|
|
fprintf(stderr, "%s: Invalid argument '%s'\n",
|
|
program_invocation_short_name, arg_name);
|
|
util_prg_print_parse_error();
|
|
}
|
|
|
|
/**
|
|
* Initialize the program module
|
|
*
|
|
* @param[in] prg Program description
|
|
*/
|
|
void util_prg_init(const struct util_prg *prg)
|
|
{
|
|
l.prg = prg;
|
|
}
|