/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

/*
 * Copyright (c) 2000 by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ident  "%Z%%M% %I%     %E% SMI"        /* from SVR4 bnu:mailst.c 2.7 */

#include "uucp.h"

extern int xfappend();

/*
 * fork and execute a mail command sending
 * string (str) to user (user).
 * If file is non-null, the file is also sent.
 * (this is used for mail returned to sender.)
 *      user     -> user to send mail to
 *      subj     -> subject for the mail
 *      str      -> string mailed to user
 *      infile   -> optional stdin mailed to user
 *      errfile  -> optional stderr mailed to user
 */
void
mailst(user, subj, str, infile, errfile)
char *user, *subj, *str, *infile, *errfile;
{
        register FILE *fp, *fi;
        char cmd[BUFSIZ];
        char subject[BUFSIZ];
        char *c;

        /* get rid of some stuff that could be dangerous */
        if ( (c = strpbrk(user, Shchar)) != NULL) {
                *c = NULLCHAR;
        }

        /* limit subject to one line */
        if ((c = strchr(subj, '\n')) != NULL) {
                strncpy(subject, subj, c-subj);
                subject[c-subj] = NULLCHAR;
                subj = subject;
        }

        (void) snprintf(cmd, sizeof (cmd), "%s %s '%s'", PATH, MAIL, user);
        if ((fp = popen(cmd, "w")) == NULL)
                return;
        (void) fprintf(fp, "To: %s\nSubject: %s\n\n%s\n", user, subj, str);

        /* copy back stderr */
        if (*errfile != '\0' && NOTEMPTY(errfile) && (fi = fopen(errfile, "r")) != NULL) {
                fputs(gettext("\n\t===== stderr was =====\n"), fp);
                if (xfappend(fi, fp) != SUCCESS)
                        fputs(gettext("\n\t===== well, i tried =====\n"), fp);
                (void) fclose(fi);
                fputc('\n', fp);
        }

        /* copy back stdin */
        if (*infile) {
                if (!NOTEMPTY(infile))
                        fputs(gettext("\n\t===== stdin was empty =====\n"), fp);
                else if (chkpth(infile, CK_READ) == FAIL) {
                        fputs(gettext( "\n\t===== stdin was"
                            " denied read permission =====\n"), fp);
                        snprintf(cmd, sizeof (cmd),
                                "user %s, stdin %s", user, infile);
                        logent(cmd, "DENIED");
                }
                else if ((fi = fopen(infile, "r")) == NULL) {
                        fputs(gettext(
                            "\n\t===== stdin was unreadable =====\n"), fp);
                        snprintf(cmd, sizeof (cmd),
                                "user %s, stdin %s", user, infile);
                        logent(cmd, "UNREADABLE");
                }
                else {
                        fputs(gettext("\n\t===== stdin was =====\n"), fp);
                        if (xfappend(fi, fp) != SUCCESS)
                                fputs(gettext(
                                    "\n\t===== well, i tried =====\n"), fp);
                        (void) fclose(fi);
                }
                fputc('\n', fp);
        }

        (void) pclose(fp);
        return;
}
#ifndef V7
static char un[2*NAMESIZE];
void
setuucp(p)
char *p;
{
   char **envp;

    envp = Env;
    for ( ; *envp; envp++) {
        if(PREFIX("LOGNAME", *envp)) {
            (void) snprintf(un, sizeof (un), "LOGNAME=%s",p);
            envp[0] = &un[0];
        }
    }
   return;
}
#else
/*ARGSUSED*/
void
setuucp(p) char *p; {}
#endif