fbsetbg.c

/*
 * Copyright (c) 2004 - 2016 Han Boetes <hboetes@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "fbsetbg.h"
char     *lastwallpaper;

/* The main function, it parses the arguments */
int
main(int argc, char *argv[])
{

        extern char    *optarg;
        extern int      optind;

        int             ret;
        int             ch;

        if (argc == 1)
        {
                display_usage();
                return (FALSE);
        }

        while ((ch = getopt(argc, argv, "F:f:C:c:T:t:A:a:BbR:r:o:lisph")) != -1)
        {
                /* Check for a sane length */
                if (optarg != NULL && (strlen(optarg) > MAXPATHLEN))
                        err(1,"try less options");

                /* informational stuff, doesn't need lastwallpaper */
                switch (ch)
                {
                case 'i':
                        find_setters(FIRST);
                        break;
                case 's':
                        find_setters(ALL);
                        break;
                case 'p':
                        display_tips();
                        return (TRUE);
                case 'h':
                        display_help();
                        return (TRUE);
                }
                /* Only now initialize lastwallpaper. */
                lastwallpaper = malloc(MAXPATHLEN);

                /* define the lastwallpaperfile */
                ret = snprintf(lastwallpaper, MAXPATHLEN,
                    "%s/%s", getenv("HOME"), LASTWALLPAPERIN);
                if (ret < 0 || ret >= MAXPATHLEN)
                        errx(1,"$HOME too big");

                switch (ch)
                {
                        /* basic setter functions */
                        /* set_wallpaper never returns; no need to break. */
                case 'F':
                        ret = set_wallpaper(ch, optarg);
                        break;
                case 'f':
                        ret = set_wallpaper(ch, optarg);
                        break;

                case 'C':
                        ret = set_wallpaper(ch, optarg);
                        break;
                case 'c':
                        ret = set_wallpaper(ch, optarg);
                        break;

                case 'T':
                        ret = set_wallpaper(ch, optarg);
                        break;
                case 't':
                        ret = set_wallpaper(ch, optarg);
                        break;

                case 'A':
                        ret = set_wallpaper(ch, optarg);
                        break;
                case 'a':
                        ret = set_wallpaper(ch, optarg);
                        break;
                        /* specials build around the previous commandset */
                case 'B':
                        ret = bsetroot_wallpaper(argc, argv, FORGET);
                        break;
                case 'b':
                        ret = bsetroot_wallpaper(argc, argv, REMEMBER);
                        break;

                case 'R':
                        ret = random_wallpaper(optarg, FORGET);
                        break;
                case 'r':
                        ret = random_wallpaper(optarg, REMEMBER);
                        break;
                case 'o':
                        ret = set_wallpaper(ch, optarg);
                        break;

                case 'l':
                        ret = last_wallpaper();
                        break;
                default:
                        display_usage();
                        ret = FALSE;
                        break;
                }
                free(lastwallpaper);
                return (ret);
        }
        argc -= optind;
        argv += optind;
        /* Getopt didn't find any options so lets assume the argument is a
         * wallpaper and try to set this wallpaper with the default argument */
        ret = set_wallpaper(DEFAULTARG, argv[0]);
        exit (ret);
}