cmd/bnu/gwd.c

	gwd.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * 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   */


#ident  "%Z%%M% %I% %E% SMI"    /* from SVR4 bnu:gwd.c 2.5 */

#include "uucp.h"

/*
 *  gwd - get working directory
 *  Uid and Euid are global
 *  return
 *      0 - ok
 *      FAIL - failed
 */

int
gwd(wkdir)
char *wkdir;
{
    FILE *fp;
    char cmd[BUFSIZ];

    *wkdir = '\0';
    (void) sprintf(cmd, "%s pwd 2>&-", PATH);

#ifndef V7
    (void) setuid(Uid);
    fp = popen(cmd, "r");
    (void) setuid(Euid);
#else
    fp = popen(cmd, "r");
#endif

    if (fp == NULL)
        return(FAIL);

    if (fgets(wkdir, MAXFULLNAME, fp) == NULL) {
        (void) pclose(fp);
        return(FAIL);
    }
    if (wkdir[strlen(wkdir)-1] == '\n')
        wkdir[strlen(wkdir)-1] = '\0';
    (void) pclose(fp);
    return(0);
}


/*
 * uidstat(file, &statbuf)
 * This is a stat call with the uid set from Euid to Uid.
 * Used from uucp.c and uux.c to permit file copies
 * from directories that may not be searchable by other.
 * return:
 *  same as stat()
 */

int
uidstat(file, buf)
char *file;
struct stat *buf;
{
#ifndef V7
    register ret;

    (void) setuid(Uid);
    ret = stat(file, buf);
    (void) setuid(Euid);
    return(ret);
#else /* V7 */
    int ret;

    if (vfork() == 0) {
        (void) setuid(Uid);
        _exit(stat(file, buf));
    }
    wait(&ret);
    return(ret);
#endif /* V7 */
}