mapset.c

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/**********************************************************************
 *
 *   char *
 *   G_mapset()
 *
 *   returns:    pointer to string containing the one word mapset
 *               name.
 *               NULL if user does not have access to mapset.
 *
 **********************************************************************/

#include <string.h>
#include <stdlib.h>
#include <grass/gis.h>
#include <grass/glocale.h>


char *G_mapset(void)
{
    static char mapset[GMAPSET_MAX];
    static int first = 1;
    char *m;

    m = G__mapset();
    if (m == NULL)
        G_fatal_error(_("MAPSET is not set"));

    if (first)
        first = 0;
    else if (strcmp(mapset, m) == 0)
        return mapset;
    strcpy(mapset, m);

    switch (G__mapset_permissions(mapset)) {
    case 0:
    case 1:
        return mapset;
        /*
           case 0:
           G_fatal_error ("MAPSET %s - permission denied", mapset);
           break;
         */
    default:
        G_fatal_error(_("MAPSET %s not found"), mapset);
        break;
    }
    exit(EXIT_FAILURE);
}

char *G__mapset(void)
{
    return G__getenv("MAPSET");
}