/*
 * Copyright 2001-2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
 * Distributed under the terms of the MIT License.
 */

/**     Mounts a volume with the specified file system */


#include <fs_volume.h>

#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


static void
usage(const char *programName)
{
        
        printf("usage: %s [-ro] [-t fstype] [-p parameter] [device] directory\n"
                "\t-ro\tmounts the volume read-only\n"
                "\t-t\tspecifies the file system to use (defaults to automatic recognition)\n"
                "\t-p\tspecifies parameters to pass to the file system (-o also accepted)\n"
                "\tif device is not specified, NULL is passed (for in-memory filesystems)\n",programName);
        exit(1);
}


int
main(int argc, char **argv)
{
        const char *programName = argv[0];
        const char *device = NULL;
        const char *mountPoint;
        const char *parameter = NULL;
        const char *fs = NULL;
        struct stat mountStat;
        dev_t volume;
        uint32 flags = 0;

        /* prettify the program name */

        if (strrchr(programName, '/'))
                programName = strrchr(programName, '/') + 1;

        /* get all options */

        while (*++argv) {
                char *arg = *argv;
                argc--;
                if (*arg != '-')
                        break;

                if (!strcmp(++arg, "ro") && (flags & B_MOUNT_READ_ONLY) == 0)
                        flags |= B_MOUNT_READ_ONLY;
                else if (!strcmp(arg, "t") && fs == NULL) {
                        if (argc <= 1)
                                break;
                        fs = *++argv;
                        argc--;
                } else if ((!strcmp(arg, "p") || !strcmp(arg, "o")) && parameter == NULL) {
                        if (argc <= 1)
                                break;
                        parameter = *++argv;
                        argc--;
                } else
                        usage(programName);
        }

        /* check the arguments */

        if (argc > 1) {
                device = argv[0];
                argv++;
                argc--;
        }
        mountPoint = argv[0];

        if (mountPoint == NULL)
                usage(programName);

        if (stat(mountPoint, &mountStat) < 0) {
                fprintf(stderr, "%s: The mount point '%s' is not accessible\n", programName, mountPoint);
                return 1;
        }
        if (!S_ISDIR(mountStat.st_mode)) {
                fprintf(stderr, "%s: The mount point '%s' is not a directory\n", programName, mountPoint);
                return 1;
        }

        /* do the work */

        volume = fs_mount_volume(mountPoint, device, fs, flags, parameter);
        if (volume < B_OK) {
                fprintf(stderr, "%s: %s\n", programName, strerror(volume));
                return 1;
        }
        return 0;
}