Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

** without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

** See the GNU Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxbincommon.h"

​

#include "zbxstr.h"

​

/******************************************************************************

 *                                                                            *

 * Purpose: prints application parameters on stdout with layout suitable for  *

 *          80-column terminal                                                *

 *                                                                            *

 * Parameters:  progname      - [IN]                                          *

 *              usage_message - [IN]                                          *

 *                                                                            *

 ******************************************************************************/

void    zbx_print_usage(const char *progname, const char **usage_message)

{

#define ZBX_MAXCOL  79

#define ZBX_SPACE1  "  "            /* left margin for the first line */

#define ZBX_SPACE2  "               "   /* left margin for subsequent lines */

    const char  **p = usage_message;

​

    if (NULL != *p)

        printf("Usage:\n");

​

    while (NULL != *p)

    {

        size_t  pos;

​

        printf("%s%s", ZBX_SPACE1, progname);

        pos = ZBX_CONST_STRLEN(ZBX_SPACE1) + strlen(progname);

​

        while (NULL != *p)

        {

            size_t  len;

​

            len = strlen(*p);

​

            if (ZBX_MAXCOL > pos + len)

            {

                pos += len + 1;

                printf(" %s", *p);

            }

            else

            {

                pos = ZBX_CONST_STRLEN(ZBX_SPACE2) + len + 1;

                printf("\n%s %s", ZBX_SPACE2, *p);

            }

​

            p++;

        }