source: trunk/minix/commands/i386/mtools-3.9.7/mtools.c@ 12

#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "partition.h"
#include "vfat.h"

const char *progname;

static const struct dispatch {
        const char *cmd;
        void (*fn)(int, char **, int);
        int type;
} dispatch[] = {
        {"attrib",mattrib, 0},
        {"badblocks",mbadblocks, 0},
        {"cat",mcat, 0},
        {"cd",mcd, 0},
        {"copy",mcopy, 0},
        {"del",mdel, 0},
        {"deltree",mdel, 2},
        {"dir",mdir, 0},
        {"doctorfat",mdoctorfat, 0},
        {"du",mdu, 0},
        {"format",mformat, 0},
        {"info", minfo, 0},
        {"label",mlabel, 0},
        {"md",mmd, 0},
        {"mkdir",mmd, 0},
#ifdef OS_linux
        {"mount",mmount, 0},
#endif
        {"partition",mpartition, 0},
        {"rd",mdel, 1},
        {"rmdir",mdel, 1},
        {"read",mcopy, 0},
        {"move",mmove, 0},
        {"ren",mmove, 1},
        {"showfat", mshowfat, 0},
#ifndef NO_CONFIG
        {"toolstest", mtoolstest, 0},
#endif
        {"type",mcopy, 1},
        {"write",mcopy, 0},
#ifndef OS_Minix
        {"zip", mzip, 0}
#endif
};
#define NDISPATCH (sizeof dispatch / sizeof dispatch[0])

int main(int argc,char **argv)
{
        const char *name;
        int i;

        init_privs();
#ifdef __EMX__
        _wildcard(&argc,&argv);
#endif

/*#define PRIV_TEST*/

#ifdef PRIV_TEST
        { 
                int euid;
                char command[100];
        
                printf("INIT: %d %d\n", getuid(), geteuid());
                drop_privs();
                printf("DROP: %d %d\n", getuid(), geteuid());
                reclaim_privs();
                printf("RECLAIM: %d %d\n", getuid(), geteuid());
                euid = geteuid();
                if(argc & 1) {
                        drop_privs();
                        printf("DROP: %d %d\n", getuid(), geteuid());
                }
                if(!((argc-1) & 2)) {
                        destroy_privs();
                        printf("DESTROY: %d %d\n", getuid(), geteuid());
                }
                sprintf(command, "a.out %d", euid);
                system(command);
                return 1;
        }
#endif


#ifdef __EMX__
       _wildcard(&argc,&argv);
#endif 


        /* check whether the compiler lays out structures in a sane way */
        if(sizeof(struct partition) != 16 ||
           sizeof(struct directory) != 32 ||
           sizeof(struct vfat_subentry) !=32) {
                fprintf(stderr,"Mtools has not been correctly compiled\n");
                fprintf(stderr,"Recompile it using a more recent compiler\n");
                return 137;
        }

#ifdef __EMX__
       argv[0] = _getname(argv[0]); _remext(argv[0]); name = argv[0];
#else  
        name = _basename(argv[0]);
#endif

#if 0
        /* this allows the different tools to be called as "mtools -c <command>"
        ** where <command> is mdir, mdel, mcopy etcetera
        ** Mainly done for the BeOS, which doesn't support links yet.
        */

        if(argc >= 3 && 
           !strcmp(argv[1], "-c") &&
           !strcmp(name, "mtools")) {
                argc-=2;
                argv+=2;
                name = argv[0];
        }
#endif

        /* print the version */
        if(argc >= 2 && 
           (strcmp(argv[1], "-V") == 0 || strcmp(argv[1], "--version") ==0)) {
                printf("%c%s version %s, dated %s\n", 
                       toupper(name[0]), name+1,
                       mversion, mdate);
                printf("configured with the following options: ");
#ifdef USE_XDF
                printf("enable-xdf ");
#else
                printf("disable-xdf ");
#endif
#ifdef USING_VOLD
                printf("enable-vold ");
#else
                printf("disable-vold ");
#endif
#ifdef USING_NEW_VOLD
                printf("enable-new-vold ");
#else
                printf("disable-new-vold ");
#endif
#ifdef DEBUG
                printf("enable-debug ");
#else
                printf("disable-debug ");
#endif
#ifdef USE_RAWTERM
                printf("enable-raw-term ");
#else
                printf("disable-raw-term ");
#endif
                printf("\n");
                return 0;
        }

        if (argc >= 2 && strcmp(name, "mtools") == 0) {
                /* mtools command ... */
                argc--;
                argv++;
                name = argv[0];
        }
        progname = argv[0];

        read_config();
        setup_signal();
        for (i = 0; i < NDISPATCH; i++) {
                if (!strcmp(name,dispatch[i].cmd)
                    || (name[0] == 'm' && !strcmp(name+1,dispatch[i].cmd)))
                        dispatch[i].fn(argc, argv, dispatch[i].type);
        }
        if (strcmp(name,"mtools"))
                fprintf(stderr,"Unknown mtools command '%s'\n",name);
        fprintf(stderr,"Usage: mtools [-V] command [-options] arguments ...\n");
        fprintf(stderr,"Supported commands:");
        for (i = 0; i < NDISPATCH; i++) {
                fprintf(stderr, i%8 == 0 ? "\n\t" : ", ");
                fprintf(stderr, "%s", dispatch[i].cmd);
        }
        putc('\n', stderr);
        fprintf(stderr, "Use 'mtools command -?' for help per command\n");

        return 1;
}