/* * $Id: vaddaliasdomain.c,v 1.2 2003/09/29 23:59:15 tomcollins Exp $ * Copyright (C) 1999-2003 Inter7 Internet Technologies, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <string.h>#include <pwd.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <signal.h>#include "config.h"#include "vpopmail.h"#define MAX_BUFF 256char Domain_a[MAX_BUFF];char Domain_b[MAX_BUFF];void usage();void get_options(int argc,char **argv);int main(int argc, char *argv[]){    int err;    char *doma;    char *domb;    get_options(argc,argv);    /* see if Domain_a or Domain_b exist */    /* Also, if domain is an alias, convert it to the real domain */     doma = vget_assign(Domain_a, NULL, 0, NULL, NULL);    domb = vget_assign(Domain_b, NULL, 0, NULL, NULL);    /* Check if both domains exists */    if ((doma != NULL) && (domb != NULL))    {        printf("Error: Both domains already exist, unable to create alias.\n");        vexit(-1);    }        /* Check if none of the domains exists */    if ((doma == NULL) && (domb == NULL))    {        printf("Error: Neither '%s' or '%s'  exist, unable to create alias.\n", Domain_a, Domain_b);        vexit(-1);    }        if (doma != NULL)  /* alias Domain_b to real Domain_a */        err = vaddaliasdomain(Domain_b, Domain_a);    else               /* alias Domain_a to real Domain_b */        err = vaddaliasdomain(Domain_a, Domain_b);        if ( err != VA_SUCCESS ) {        printf("Error: %s\n", verror(err));        vexit(err);    }    return(vexit(0));}void usage(){    printf("vaddaliasdomain: usage: [options] real_domain alias_domain\n");    printf("options: -v (print version number)\n");    printf("note: for backward compatability, you can swap real_domain and alias_domain.\n");}void get_options(int argc,char **argv){ int c; int errflag;    memset(Domain_a, 0, sizeof(Domain_a));    memset(Domain_b, 0, sizeof(Domain_b));    errflag = 0;    while( !errflag && (c=getopt(argc,argv,"v")) != -1 ) {      switch(c) {        case 'v':          printf("version: %s\n", VERSION);          break;        default:          errflag = 1;          break;      }    }    if ( optind < argc ) {     snprintf(Domain_a, sizeof(Domain_a), "%s", argv[optind]);        ++optind;    }    if ( optind < argc ) {    snprintf(Domain_b, sizeof(Domain_b), "%s", argv[optind]);        ++optind;    }    if ( Domain_b[0] == 0 || Domain_a[0] == 0 ) {         usage();        vexit(-1);    }    if ( strcmp( Domain_a, Domain_b ) == 0 ) {        printf("Error: real domain and alias domain are the same!\n");        usage();        vexit(-1);    }}