home.c

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/*
 ****************************************************************
 * char *
 * G_home ()
 *
 *   returns char pointer to home directory for user
 *   dies if can't determine
 *
 * char *
 * G__home()
 *
 *   returns char pointer to home directory for user
 *   NULL if can't determine
 *
 ***************************************************************/
#include <stdlib.h>
#include <string.h>
#include <grass/gis.h>
#include <grass/glocale.h>


char *G_home(void)
{
    char *home = G__home();

    if (home)
        return home;

    G_fatal_error(_("unable to determine user's home directory"));
    return NULL;
}

char *G__home(void)
{
    static char *home = 0;

    if (home)
        return home;

#ifdef __MINGW32__
    {
        char buf[GPATH_MAX];

        /* TODO: we should probably check if the dir exists */
        home = getenv("USERPROFILE");

        if (!home) {
            sprintf(buf, "%s%s", getenv("HOMEDRIVE"), getenv("HOMEPATH"));

            if (strlen(buf) >= 0)
                home = G_store(buf);
        }

        if (!home)
            home = getenv("HOME");
    }
#else
    home = getenv("HOME");
#endif
    return home;
}