Adding upstream version 3.1.0+dfsg.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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107
tools/lint/cmd_help.c
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107
tools/lint/cmd_help.c
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/**
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* @file cmd_help.c
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* @author Adam Piecek <piecek@cesnet.cz>
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* @brief 'help' command of the libyang's yanglint tool.
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*
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* Copyright (c) 2023-2023 CESNET, z.s.p.o.
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*
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* This source code is licensed under BSD 3-Clause License (the "License").
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*/
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#define _GNU_SOURCE
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#include "cmd.h"
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#include <getopt.h>
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#include <stdint.h>
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#include <stdio.h>
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#include "libyang.h"
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#include "common.h"
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#include "yl_opt.h"
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void
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cmd_help_help(void)
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{
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printf("Usage: help [cmd ...]\n");
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}
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int
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cmd_help_opt(struct yl_opt *yo, const char *cmdline, char ***posv, int *posc)
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{
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int rc = 0, argc = 0;
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int opt, opt_index;
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struct option options[] = {
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0}
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};
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if ((rc = parse_cmdline(cmdline, &argc, &yo->argv))) {
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return rc;
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}
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while ((opt = getopt_long(argc, yo->argv, commands[CMD_HELP].optstring, options, &opt_index)) != -1) {
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if (opt == 'h') {
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cmd_help_help();
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return 1;
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} else {
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YLMSG_E("Unknown option.");
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return 1;
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}
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}
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*posv = &yo->argv[optind];
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*posc = argc - optind;
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return rc;
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}
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static void
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print_generic_help(void)
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{
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printf("Available commands:\n");
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for (uint16_t i = 0; commands[i].name; i++) {
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if (commands[i].helpstring != NULL) {
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printf(" %-15s %s\n", commands[i].name, commands[i].helpstring);
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}
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}
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}
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int
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cmd_help_exec(struct ly_ctx **ctx, struct yl_opt *yo, const char *posv)
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{
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(void)ctx, (void)yo;
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if (!posv) {
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print_generic_help();
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} else {
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/* print specific help for the selected command(s) */
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int8_t match = 0;
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/* get the command of the specified name */
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for (uint16_t i = 0; commands[i].name; i++) {
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if (strcmp(posv, commands[i].name) == 0) {
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match = 1;
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if (commands[i].help_func != NULL) {
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commands[i].help_func();
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} else {
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printf("%s: %s\n", posv, commands[i].helpstring);
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}
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break;
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}
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}
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if (!match) {
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/* if unknown command specified, print the list of commands */
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printf("Unknown command \'%s\'\n", posv);
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print_generic_help();
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}
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}
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return 0;
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}
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